-/*
+/******************************************************************************
+ * Genevent
+ *
+ * Event generator. XML to logging C code converter.
+ *
+ * Program parameters :
+ * ./genevent name.xml
+ *
+ * Will generate ltt-facility-name.h, ltt-facility-id-name.h
+ * ltt-facility-loader-name.c, ltt-facility-loader-name.h
+ * in the current directory.
+ *
+ * Supports :
+ * - C Alignment
+ * - C types : struct, union, enum, basic types.
+ * - Architectures : LP32, ILP32, ILP64, LLP64, LP64.
+ *
+ * Additionnal structures supported :
+ * - embedded variable size strings
+ * - embedded variable size arrays
+ * - embedded variable size sequences
+ *
+ * Notes :
+ * (1)
+ * enums are limited to integer type, as this is what is used in C. Note,
+ * however, that ISO/IEC 9899:TC2 specify that the type of enum can be char,
+ * unsigned int or int. This is implementation defined (compiler). That's why we
+ * add a check for sizeof enum.
+ *
+ * (2)
+ * Because of archtecture defined type sizes, we need to ask for ltt_align
+ * (which gives the alignment) by passing basic types, not their actual sizes.
+ * It's up to ltt_align to determine sizes of types.
+ *
+ * Note that, from
+ * http://www.usenix.org/publications/login/standards/10.data.html
+ * (Andrew Josey <a.josey@opengroup.org>) :
+ *
+ * Data Type LP32 ILP32 ILP64 LLP64 LP64
+ * char 8 8 8 8 8
+ * short 16 16 16 16 16
+ * int32 32
+ * int 16 32 64 32 32
+ * long 32 32 64 32 64
+ * long long (int64) 64
+ * pointer 32 32 64 64 64
+ *
+ * With these constraints :
+ * sizeof(char) <= sizeof(short) <= sizeof(int)
+ * <= sizeof(long) = sizeof(size_t)
+ *
+ * and therefore sizeof(long) <= sizeof(pointer) <= sizeof(size_t)
+ *
+ * Which means we only have to remember which is the biggest type in a structure
+ * to know the structure's alignment.
+ */
+
+#define _GNU_SOURCE
+#include <limits.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <assert.h>
-genevent.c: Generate helper declarations and functions to trace events
- from an event description file.
+#include "genevent.h"
+#include "parser.h"
-Copyright (C) 2002, Xianxiu Yang
-Copyright (C) 2002, Michel Dagenais
-
-This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
-the Free Software Foundation; version 2 of the License.
-
-This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-*/
-
-/* This program reads the ".event" event definitions input files
- specified as command line arguments and generates corresponding
- ".c" and ".h" files required to trace such events in the kernel.
-
- The program uses a very simple tokenizer, called from a hand written
- recursive descent parser to fill a data structure describing the events.
- The result is a sequence of events definitions which refer to type
- definitions.
- A table of named types is maintained to allow refering to types by name
- when the same type is used at several places. Finally a sequence of
- all types is maintained to facilitate the freeing of all type
- information when the processing of an ".event" file is finished. */
+#define TRUE 1
+#define FALSE (!TRUE)
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <linux/errno.h>
-#include <assert.h>
+/* Debugging printf */
+#ifdef DEBUG
+#define dprintf(...) \
+ do {\
+ printf(__FILE__ ",%u,%s: ",\
+ __LINE__, __func__);\
+ printf(__VA_ARGS__);\
+ } while(0)
+#else
+#define dprintf(...)
+#endif
-#include "parser.h"
-#include "genevent.h"
-/* Named types may be referenced from anywhere */
+enum user_fct_types { USER_FCT_PROTO, USER_FCT_DECLARATION } ;
-facility * fac;
+/* Code printing */
-int main(int argc, char** argv)
+void print_tabs(unsigned int tabs, FILE *fd)
{
- char *token;
- parse_file in;
- char buffer[BUFFER_SIZE];
- int i;
-
- if(argc < 2){
- printf("At least one event definition file is needed\n");
- exit(1);
- }
+ for(unsigned int i = 0; i<tabs;i++)
+ fprintf(fd, "\t");
+}
- in.buffer = buffer;
- in.error = error_callback;
-
- for(i = 1 ; i < argc ; i++) {
- in.lineno = 0;
- in.name = allocAndCopy(argv[i]);
-
- in.fp = fopen(in.name, "r");
- if(!in.fp ){
- in.error(&in,"cannot open facility input file");
- }
-
- while(1){
- token = getToken(&in);
- if(in.type == ENDFILE) break;
-
- if(strcmp(token, "<")) in.error(&in,"not a facility file");
- token = getName(&in);
-
- if(strcmp("facility",token) == 0) {
- fac = memAlloc(sizeof(facility));
- fac->name = NULL;
- fac->description = NULL;
- sequence_init(&(fac->events));
- table_init(&(fac->named_types));
- sequence_init(&(fac->unnamed_types));
-
- parseFacility(&in, fac);
-
- //check if any namedType is not defined
- checkNamedTypesImplemented(&fac->named_types);
- }
- else in.error(&in,"facility token was expected");
-
- generateFile(argv[i]);
-
- free(fac->name);
- free(fac->description);
- freeEvents(&fac->events);
- sequence_dispose(&fac->events);
- freeNamedType(&fac->named_types);
- table_dispose(&fac->named_types);
- freeTypes(&fac->unnamed_types);
- sequence_dispose(&fac->unnamed_types);
- free(fac);
- }
-
- free(in.name);
- fclose(in.fp);
+/* print type.
+ *
+ * Copied from construct_types_and_fields in LTTV facility.c */
- }
- return 0;
+int print_type(type_descriptor_t * td, FILE *fd, unsigned int tabs,
+ char *nest_name, char *field_name)
+{
+ char basename[PATH_MAX];
+ unsigned int basename_len = 0;
+
+ strcpy(basename, nest_name);
+ basename_len = strlen(basename);
+
+ /* For a named type, we use the type_name directly */
+ if(td->type_name != NULL) {
+ strncpy(basename, td->type_name, PATH_MAX);
+ basename_len = strlen(basename);
+ } else {
+ /* For a unnamed type, there must be a field name */
+ if((basename_len != 0)
+ && (basename[basename_len-1] != '_')
+ && (field_name[0] != '\0')) {
+ strncat(basename, "_", PATH_MAX - basename_len);
+ basename_len = strlen(basename);
+ }
+ strncat(basename, field_name, PATH_MAX - basename_len);
+ }
+
+ switch(td->type) {
+ case INT_FIXED:
+ fprintf(fd, "%s", intOutputTypes[getSizeindex(td->size)]);
+ break;
+ case UINT_FIXED:
+ fprintf(fd, "%s", uintOutputTypes[getSizeindex(td->size)]);
+ break;
+ case CHAR:
+ fprintf(fd, "signed char");
+ break;
+ case UCHAR:
+ fprintf(fd, "unsigned char");
+ break;
+ case SHORT:
+ fprintf(fd, "short");
+ break;
+ case USHORT:
+ fprintf(fd, "unsigned short");
+ break;
+ case INT:
+ fprintf(fd, "int");
+ break;
+ case UINT:
+ fprintf(fd, "unsigned int");
+ break;
+ case FLOAT:
+ fprintf(fd, "%s", floatOutputTypes[getSizeindex(td->size)]);
+ break;
+ case POINTER:
+ fprintf(fd, "const void *");
+ break;
+ case LONG:
+ fprintf(fd, "long");
+ break;
+ case ULONG:
+ fprintf(fd, "unsigned long");
+ break;
+ case SIZE_T:
+ fprintf(fd, "size_t");
+ break;
+ case SSIZE_T:
+ fprintf(fd, "ssize_t");
+ break;
+ case OFF_T:
+ fprintf(fd, "off_t");
+ break;
+ case STRING:
+ fprintf(fd, "const char *");
+ break;
+ case ENUM:
+ fprintf(fd, "enum lttng_%s", basename);
+ break;
+ case ARRAY:
+ fprintf(fd, "lttng_array_%s", basename);
+ break;
+ case SEQUENCE:
+ fprintf(fd, "lttng_sequence_%s", basename);
+ break;
+ case STRUCT:
+ fprintf(fd, "struct lttng_%s", basename);
+ break;
+ case UNION:
+ fprintf(fd, "union lttng_%s", basename);
+ break;
+ default:
+ printf("print_type : unknown type\n");
+ return 1;
+ }
+
+ return 0;
}
+/* Print logging function argument */
+int print_arg(type_descriptor_t * td, FILE *fd, unsigned int tabs,
+ char *nest_name, char *field_name)
+{
+ char basename[PATH_MAX];
+ unsigned int basename_len = 0;
-/*****************************************************************************
- *Function name
- * generateFile : generate .c and .h file
- *Input Params
- * name : name of event definition file
- ****************************************************************************/
-void generateFile(char *name){
- char *loadName, *hName, *hIdName, *cName, *tmp, *tmp2;
- FILE * lFp, *hFp, *iFp, *cFp;
- int nbEvent;
- unsigned long checksum=0;
-
- //remove .xml if it exists
- tmp = &name[strlen(name)-4];
- if(strcmp(tmp, ".xml") == 0){
- *tmp = '\0';
- }
+ strcpy(basename, nest_name);
+ basename_len = strlen(basename);
+
+ /* For a named type, we use the type_name directly */
+ if(td->type_name != NULL) {
+ strncpy(basename, td->type_name, PATH_MAX);
+ basename_len = strlen(basename);
+ } else {
+ /* For a unnamed type, there must be a field name */
+ if((basename_len != 0)
+ && (basename[basename_len-1] != '_')
+ && (field_name[0] != '\0')) {
+ strncat(basename, "_", PATH_MAX - basename_len);
+ basename_len = strlen(basename);
+ }
+ strncat(basename, field_name, PATH_MAX - basename_len);
+ }
+
+ print_tabs(tabs, fd);
+
+ switch(td->type) {
+ case INT_FIXED:
+ fprintf(fd, "%s", intOutputTypes[getSizeindex(td->size)]);
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case UINT_FIXED:
+ fprintf(fd, "%s", uintOutputTypes[getSizeindex(td->size)]);
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case CHAR:
+ fprintf(fd, "signed char");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case UCHAR:
+ fprintf(fd, "unsigned char");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case SHORT:
+ fprintf(fd, "short");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case USHORT:
+ fprintf(fd, "unsigned short");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case INT:
+ fprintf(fd, "int");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case UINT:
+ fprintf(fd, "unsigned int");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case FLOAT:
+ fprintf(fd, "%s", floatOutputTypes[getSizeindex(td->size)]);
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case POINTER:
+ fprintf(fd, "const void *");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case LONG:
+ fprintf(fd, "long");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case ULONG:
+ fprintf(fd, "unsigned long");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case SIZE_T:
+ fprintf(fd, "size_t");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case SSIZE_T:
+ fprintf(fd, "ssize_t");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case OFF_T:
+ fprintf(fd, "off_t");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case STRING:
+ fprintf(fd, "const char *");
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case ENUM:
+ fprintf(fd, "enum lttng_%s", basename);
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case ARRAY:
+ fprintf(fd, "lttng_array_%s", basename);
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case SEQUENCE:
+ fprintf(fd, "lttng_sequence_%s *", basename);
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case STRUCT:
+ fprintf(fd, "struct lttng_%s *", basename);
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ case UNION:
+ fprintf(fd, "union lttng_%s *", basename);
+ fprintf(fd, " lttng_param_%s", field_name);
+ break;
+ default:
+ printf("print_type : unknown type\n");
+ return 1;
+ }
+
+ return 0;
+}
- tmp = strrchr(name,'/');
- if(tmp){
- tmp++;
- }else{
- tmp = name;
- }
- loadName = appendString("ltt-facility-loader-", tmp);
- tmp2 = appendString(loadName,".h");
- free(loadName);
- loadName = tmp2;
- hName = appendString("ltt-facility-", tmp);
- tmp2 = appendString(hName,".h");
- free(hName);
- hName = tmp2;
- hIdName = appendString("ltt-facility-id-", tmp);
- tmp2 = appendString(hIdName,".h");
- free(hIdName);
- hIdName = tmp2;
- cName = appendString("ltt-facility-loader-", tmp);
- tmp2 = appendString(cName,".c");
- free(cName);
- cName = tmp2;
- lFp = fopen(loadName,"w");
- if(!lFp){
- printf("Cannot open the file : %s\n",loadName);
- exit(1);
- }
+/* Does the type has a fixed size ? (as know from the compiler)
+ *
+ * 1 : fixed size
+ * 0 : variable length
+ */
+int has_type_fixed_size(type_descriptor_t *td)
+{
+ switch(td->type) {
+ case INT_FIXED:
+ case UINT_FIXED:
+ case CHAR:
+ case UCHAR:
+ case SHORT:
+ case USHORT:
+ case INT:
+ case UINT:
+ case FLOAT:
+ case POINTER:
+ case LONG:
+ case ULONG:
+ case SIZE_T:
+ case SSIZE_T:
+ case OFF_T:
+ case ENUM:
+ case UNION: /* The union must have fixed size children. Must be checked by
+ the parser */
+ return 1;
+ break;
+ case STRING:
+ case SEQUENCE:
+ return 0;
+ break;
+ case STRUCT:
+ {
+ int has_type_fixed = 0;
+ for(unsigned int i=0;i<td->fields.position;i++){
+ field_t *field = (field_t*)(td->fields.array[i]);
+ type_descriptor_t *type = field->type;
+
+ has_type_fixed = has_type_fixed_size(type);
+ if(!has_type_fixed) return 0;
+ }
+ return 1;
+ }
+ break;
+ case ARRAY:
+ assert(td->size >= 0);
+ return has_type_fixed_size(((field_t*)td->fields.array[0])->type);
+ break;
+ case NONE:
+ printf("There is a type defined to NONE : bad.\n");
+ assert(0);
+ break;
+ }
+ return 0; //make gcc happy.
+}
- hFp = fopen(hName,"w");
- if(!hFp){
- printf("Cannot open the file : %s\n",hName);
- exit(1);
- }
- iFp = fopen(hIdName,"w");
- if(!iFp){
- printf("Cannot open the file : %s\n",hIdName);
- exit(1);
- }
-
- cFp = fopen(cName,"w");
- if(!cFp){
- printf("Cannot open the file : %s\n",cName);
- exit(1);
- }
-
- free(loadName);
- free(hName);
- free(hIdName);
- free(cName);
- generateChecksum(fac->name, &checksum, &(fac->events));
- /* generate .h file, event enumeration then structures and functions */
- fprintf(iFp, "#ifndef _LTT_FACILITY_ID_%s_H_\n",fac->capname);
- fprintf(iFp, "#define _LTT_FACILITY_ID_%s_H_\n\n",fac->capname);
- fprintf(iFp, "#ifdef CONFIG_LTT\n");
- generateEnumEvent(iFp, fac->name, &nbEvent, checksum);
- fprintf(iFp, "#endif //CONFIG_LTT\n");
- fprintf(iFp, "#endif //_LTT_FACILITY_ID_%s_H_\n",fac->capname);
+/* print type declaration.
+ *
+ * Copied from construct_types_and_fields in LTTV facility.c */
- fprintf(hFp, "#ifndef _LTT_FACILITY_%s_H_\n",fac->capname);
- fprintf(hFp, "#define _LTT_FACILITY_%s_H_\n\n",fac->capname);
- //fprintf(hFp, "#ifdef CONFIG_LTT\n");
- generateTypeDefs(hFp, fac->name);
- generateStructFunc(hFp, fac->name,checksum);
- //fprintf(hFp, "#endif //CONFIG_LTT\n");
- fprintf(hFp, "#endif //_LTT_FACILITY_%s_H_\n",fac->capname);
+int print_type_declaration(type_descriptor_t * td, FILE *fd, unsigned int tabs,
+ char *nest_name, char *field_name)
+{
+ char basename[PATH_MAX];
+ unsigned int basename_len = 0;
+
+ if(td->custom_write) return 0; /* Does print custom type */
+
+ strncpy(basename, nest_name, PATH_MAX);
+ basename_len = strlen(basename);
+
+ /* For a named type, we use the type_name directly */
+ if(td->type_name != NULL) {
+ strncpy(basename, td->type_name, PATH_MAX);
+ basename_len = strlen(basename);
+ } else {
+ /* For a unnamed type, there must be a field name, except for
+ * the array. */
+ if((basename_len != 0)
+ && (basename[basename_len-1] != '_'
+ && (field_name[0] != '\0'))) {
+ strncat(basename, "_", PATH_MAX - basename_len);
+ basename_len = strlen(basename);
+ }
+ strncat(basename, field_name, PATH_MAX - basename_len);
+ }
+
+ switch(td->type) {
+ case ENUM:
+ fprintf(fd, "enum lttng_%s", basename);
+ fprintf(fd, " {\n");
+ for(unsigned int i=0;i<td->labels.position;i++){
+ print_tabs(1, fd);
+ fprintf(fd, "LTTNG_%s = %d", ((char*)td->labels.array[i]),
+ (*(int*)td->labels_values.array[i]));
+ fprintf(fd, ",\n");
+ }
+ fprintf(fd, "};\n");
+ fprintf(fd, "\n");
+ break;
+
+ case ARRAY:
+ dprintf("%s\n", basename);
+ assert(td->size >= 0);
+ if(((field_t*)td->fields.array[0])->type->type_name == NULL) {
+ /* Not a named nested type : we must print its declaration first */
+ if(print_type_declaration(((field_t*)td->fields.array[0])->type,
+ fd, 0, basename, "")) return 1;
+ }
+ fprintf(fd, "#define LTTNG_ARRAY_SIZE_%s %zu\n", basename,
+ td->size);
+ fprintf(fd, "typedef ");
+ if(print_type(((field_t*)td->fields.array[0])->type,
+ fd, tabs, basename, "")) return 1;
+ fprintf(fd, " lttng_array_%s[LTTNG_ARRAY_SIZE_%s];\n", basename,
+ basename);
+ fprintf(fd, "\n");
+ break;
+ case SEQUENCE:
+ /* We assume that the sequence length type does not need to be declared.
+ */
+ if(((field_t*)td->fields.array[1])->type->type_name == NULL) {
+ /* Not a named nested type : we must print its declaration first */
+ if(print_type_declaration(((field_t*)td->fields.array[1])->type,
+ fd, 0, basename, "")) return 1;
+ }
+ fprintf(fd, "typedef struct lttng_sequence_%s lttng_sequence_%s;\n",
+ basename,
+ basename);
+ fprintf(fd, "struct lttng_sequence_%s", basename);
+ fprintf(fd, " {\n");
+ print_tabs(1, fd);
+ if(print_type(((field_t*)td->fields.array[0])->type,
+ fd, tabs, basename, "")) return 1;
+ fprintf(fd, " len;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "const ");
+ if(print_type(((field_t*)td->fields.array[1])->type,
+ fd, tabs, basename, "")) return 1;
+ fprintf(fd, " *array;\n");
+ fprintf(fd, "};\n"); /* We do not LTT_ALIGN, because we never copy
+ it to the buffer directly. */
+ fprintf(fd, "\n");
+ break;
+
+ case STRUCT:
+ for(unsigned int i=0;i<td->fields.position;i++){
+ field_t *field = (field_t*)(td->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ if(type->type_name == NULL) {
+ /* Not a named nested type : we must print its declaration first */
+ if(print_type_declaration(type,
+ fd, 0, basename, field->name)) return 1;
+ }
+ }
+ fprintf(fd, "struct lttng_%s", basename);
+ fprintf(fd, " {\n");
+ for(unsigned int i=0;i<td->fields.position;i++){
+ field_t *field = (field_t*)(td->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ print_tabs(1, fd);
+ if(print_type(type, fd, tabs, basename, field->name)) return 1;
+ fprintf(fd, " ");
+ fprintf(fd, "%s", field->name);
+ fprintf(fd, ";\n");
+ }
+ if(td->fac->align)
+ fprintf(fd, "} LTT_ALIGN;\n");
+ else
+ fprintf(fd, "};\n");
+ fprintf(fd, "\n");
+ break;
+ case UNION:
+ for(unsigned int i=0;i<td->fields.position;i++){
+ field_t *field = (field_t*)(td->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ if(type->type_name == NULL) {
+ /* Not a named nested type : we must print its declaration first */
+ if(print_type_declaration(type,
+ fd, 0, basename, field->name)) return 1;
+ }
+ }
+ fprintf(fd, "union lttng_%s", basename);
+ fprintf(fd, " {\n");
+ for(unsigned i=0;i<td->fields.position;i++){
+ field_t *field = (field_t*)(td->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ print_tabs(1, fd);
+ if(print_type(type, fd, tabs, basename, field->name)) return 1;
+ fprintf(fd, " ");
+ fprintf(fd, "%s", field->name);
+ fprintf(fd, ";\n");
+ }
+ if(td->fac->align)
+ fprintf(fd, "} LTT_ALIGN;\n");
+ else
+ fprintf(fd, "};\n");
+ fprintf(fd, "\n");
+ break;
+ default:
+ dprintf("print_type_declaration : unknown type or nothing to declare.\n");
+ break;
+ }
+
+ return 0;
+}
- /* generate .h file, calls to register the facility at init time */
- generateLoaderfile(lFp,fac->name,nbEvent,checksum,fac->capname);
- // create ltt-facility-loader-facname.c
- generateCfile(cFp, tmp);
+/* print type alignment.
+ *
+ * Copied from construct_types_and_fields in LTTV facility.c
+ *
+ * basename is the name which identifies the type (along with a prefix
+ * (possibly)). */
- fclose(hFp);
- fclose(iFp);
- fclose(lFp);
- fclose(cFp);
+int print_type_alignment(type_descriptor_t * td, FILE *fd, unsigned int tabs,
+ char *nest_name, char *field_name, char *obj_prefix)
+{
+ char basename[PATH_MAX];
+ unsigned int basename_len = 0;
+
+ strncpy(basename, nest_name, PATH_MAX);
+ basename_len = strlen(basename);
+
+ /* For a named type, we use the type_name directly */
+ if(td->type_name != NULL) {
+ strncpy(basename, td->type_name, PATH_MAX);
+ basename_len = strlen(basename);
+ } else {
+ /* For a unnamed type, there must be a field name, except for
+ * the array. */
+ if((basename_len != 0)
+ && (basename[basename_len-1] != '_'
+ && field_name != NULL
+ && (field_name[0] != '\0'))) {
+ strncat(basename, "_", PATH_MAX - basename_len);
+ basename_len = strlen(basename);
+ }
+ if(field_name != NULL)
+ strncat(basename, field_name, PATH_MAX - basename_len);
+ }
+
+ if(field_name[0] == '\0') {
+ /* We are in a write function : it's the obj that we must align. */
+ switch(td->type) {
+ case SEQUENCE:
+ fprintf(fd, "lttng_get_alignment_sequence_%s(%s)", basename,
+ obj_prefix);
+ break;
+ case STRUCT:
+ fprintf(fd, "lttng_get_alignment_struct_%s(%s)", basename,
+ obj_prefix);
+ break;
+ case UNION:
+ fprintf(fd, "lttng_get_alignment_union_%s(%s)", basename,
+ obj_prefix);
+ break;
+ case ARRAY:
+ fprintf(fd, "lttng_get_alignment_array_%s(%s)", basename,
+ obj_prefix);
+ case STRING:
+ fprintf(fd, "sizeof(char)");
+ break;
+ case INT_FIXED:
+ case UINT_FIXED:
+ case CHAR:
+ case UCHAR:
+ case SHORT:
+ case USHORT:
+ case INT:
+ case UINT:
+ case FLOAT:
+ case POINTER:
+ case LONG:
+ case ULONG:
+ case SIZE_T:
+ case SSIZE_T:
+ case OFF_T:
+ case ENUM:
+ fprintf(fd, "sizeof(");
+ if(print_type(td, fd, 0, basename, "")) return 1;
+ fprintf(fd, ")");
+ break;
+
+ default:
+ printf("error : type unexpected\n");
+ return 1;
+ break;
+ }
+ } else {
+
+ switch(td->type) {
+ case INT_FIXED:
+ case UINT_FIXED:
+ case CHAR:
+ case UCHAR:
+ case SHORT:
+ case USHORT:
+ case INT:
+ case UINT:
+ case FLOAT:
+ case POINTER:
+ case LONG:
+ case ULONG:
+ case SIZE_T:
+ case SSIZE_T:
+ case OFF_T:
+ case ENUM:
+ fprintf(fd, "sizeof(");
+ if(print_type(td, fd, 0, basename, "")) return 1;
+ fprintf(fd, ")");
+ break;
+ case STRING:
+ fprintf(fd, "sizeof(char)");
+ break;
+ case SEQUENCE:
+ fprintf(fd, "lttng_get_alignment_sequence_%s(&%s%s)", basename,
+ obj_prefix, field_name);
+ break;
+ case STRUCT:
+ fprintf(fd, "lttng_get_alignment_struct_%s(&%s%s)", basename,
+ obj_prefix, field_name);
+ break;
+ case UNION:
+ fprintf(fd, "lttng_get_alignment_union_%s(&%s%s)", basename,
+ obj_prefix, field_name);
+ break;
+ case ARRAY:
+ fprintf(fd, "lttng_get_alignment_array_%s(%s%s)", basename,
+ obj_prefix, field_name);
+ break;
+ case NONE:
+ printf("error : type NONE unexpected\n");
+ return 1;
+ break;
+ }
+ }
+
+ return 0;
+}
+
+/* print type write.
+ *
+ * Copied from construct_types_and_fields in LTTV facility.c
+ *
+ * basename is the name which identifies the type (along with a prefix
+ * (possibly)). */
+int print_type_write(type_descriptor_t * td, FILE *fd, unsigned int tabs,
+ char *nest_name, char *field_name, char *obj_prefix, int get_ptr)
+{
+ char basename[PATH_MAX];
+ unsigned int basename_len = 0;
+ char get_ptr_char[2] = "";
+ char custom[PATH_MAX] = "";
+
+ strncpy(basename, nest_name, PATH_MAX);
+ basename_len = strlen(basename);
+
+ /* For a named type, we use the type_name directly */
+ if(td->type_name != NULL) {
+ strncpy(basename, td->type_name, PATH_MAX);
+ basename_len = strlen(basename);
+ } else {
+ /* For a unnamed type, there must be a field name, except for
+ * the array. */
+ if((basename_len != 0)
+ && (basename[basename_len-1] != '_'
+ && (field_name[0] != '\0'))) {
+ strncat(basename, "_", PATH_MAX - basename_len);
+ basename_len = strlen(basename);
+ }
+ strncat(basename, field_name, PATH_MAX - basename_len);
+ }
+
+ if(get_ptr) {
+ strcpy(get_ptr_char, "&");
+ }
+
+ if(td->custom_write) {
+ strcpy(custom, "_custom");
+ }
+
+ switch(td->type) {
+ case INT_FIXED:
+ case UINT_FIXED:
+ case CHAR:
+ case UCHAR:
+ case SHORT:
+ case USHORT:
+ case INT:
+ case UINT:
+ case FLOAT:
+ case POINTER:
+ case LONG:
+ case ULONG:
+ case SIZE_T:
+ case SSIZE_T:
+ case OFF_T:
+ case ENUM:
+ print_tabs(tabs, fd);
+ fprintf(fd, "align = ");
+ if(td->fac->align) {
+ if(print_type_alignment(td, fd, 0, basename, "", "obj")) return 1;
+ } else
+ fprintf(fd, "0");
+ fprintf(fd, ";\n");
+ fprintf(fd, "\n");
+ print_tabs(tabs, fd);
+ fprintf(fd, "if (*len == 0) {\n");
+ print_tabs(tabs+1, fd);
+ fprintf(fd, "*to += ltt_align(*to, align); /* align output */\n");
+ print_tabs(tabs, fd);
+ fprintf(fd, "} else {\n");
+ print_tabs(tabs+1, fd);
+ fprintf(fd, "*len += ltt_align(*to+*len, align); /* alignment, ok to do a memcpy of it */\n");
+ print_tabs(tabs, fd);
+ fprintf(fd, "}\n");
+ fprintf(fd, "\n");
+
+ print_tabs(tabs, fd);
+ fprintf(fd, "*len += ");
+ fprintf(fd, "sizeof(");
+ if(print_type(td, fd, 0, basename, "")) return 1;
+ fprintf(fd, ");\n");
+
+ break;
+ case STRING:
+ print_tabs(tabs, fd);
+ fprintf(fd,
+ "lttng_write%s_string_%s(buffer, to_base, to, from, len, %s%s);\n",
+ custom, basename, obj_prefix, field_name);
+ break;
+ case SEQUENCE:
+ print_tabs(tabs, fd);
+ fprintf(fd,
+ "lttng_write%s_sequence_%s(buffer, to_base, to, from, len, %s%s%s);",
+ custom, basename, get_ptr_char, obj_prefix, field_name);
+ break;
+ case STRUCT:
+ print_tabs(tabs, fd);
+ fprintf(fd,
+ "lttng_write%s_struct_%s(buffer, to_base, to, from, len, %s%s%s);",
+ custom, basename, get_ptr_char, obj_prefix, field_name);
+ break;
+ case UNION:
+ print_tabs(tabs, fd);
+ fprintf(fd,
+ "lttng_write%s_union_%s(buffer, to_base, to, from, len, %s%s%s);",
+ custom, basename, get_ptr_char, obj_prefix, field_name);
+ break;
+ case ARRAY:
+ print_tabs(tabs, fd);
+ fprintf(fd,
+ "lttng_write%s_array_%s(buffer, to_base, to, from, len, %s%s);",
+ custom, basename, obj_prefix, field_name);
+ break;
+ case NONE:
+ printf("Error : type NONE unexpected\n");
+ return 1;
+ break;
+ }
+
+ return 0;
}
+/* print need local vars ?.
+ *
+ * Copied from print_type_write
+ *
+ * Does the type_write call needs local size and from variables ?
+ * return value : 1 yes, 0 no.
+ */
-/*****************************************************************************
- *Function name
- * generateEnumEvent : output event enum to .h file
- *Input Params
- * fp : file to be written to
- * facName : name of facility
- *Output Params
- * nbEvent : number of events in the facility
- ****************************************************************************/
-void generateEnumEvent(FILE *fp, char *facName, int * nbEvent, unsigned long checksum) {
- int pos = 0;
+int has_type_local(type_descriptor_t * td)
+{
+ switch(td->type) {
+ case INT_FIXED:
+ case UINT_FIXED:
+ case CHAR:
+ case UCHAR:
+ case SHORT:
+ case USHORT:
+ case INT:
+ case UINT:
+ case FLOAT:
+ case POINTER:
+ case LONG:
+ case ULONG:
+ case SIZE_T:
+ case SSIZE_T:
+ case OFF_T:
+ case ENUM:
+ return 1;
+ break;
+ case STRING:
+ case SEQUENCE:
+ case STRUCT:
+ case UNION:
+ case ARRAY:
+ return 0;
+ break;
+ case NONE:
+ printf("Error : type NONE unexpected\n");
+ return 1;
+ break;
+ }
+
+ return 0;
+}
- fprintf(fp,"#include <linux/ltt-facilities.h>\n\n");
- fprintf(fp,"/**** facility handle ****/\n\n");
- fprintf(fp,"extern ltt_facility_t ltt_facility_%s_%X;\n",facName, checksum);
- fprintf(fp,"extern ltt_facility_t ltt_facility_%s;\n\n\n",facName, checksum);
- fprintf(fp,"/**** event type ****/\n\n");
- fprintf(fp,"enum %s_event {\n",facName);
+/* print type alignment function.
+ *
+ * Copied from construct_types_and_fields in LTTV facility.c
+ *
+ * basename is the name which identifies the type (along with a prefix
+ * (possibly)). */
- for(pos = 0; pos < fac->events.position;pos++) {
- fprintf(fp,"\tevent_%s", ((event *)(fac->events.array[pos]))->name);
- if(pos != fac->events.position-1) fprintf(fp,",\n");
- }
- fprintf(fp,"\n};\n\n\n");
+int print_type_alignment_fct(type_descriptor_t * td, FILE *fd,
+ unsigned int tabs,
+ char *nest_name, char *field_name)
+{
+ char basename[PATH_MAX];
+ unsigned int basename_len = 0;
+
+ if(td->custom_write) return 0; /* Does print custom type */
+ if(td->fac->align == 0) return 0;
- // fprintf(fp,"/**** number of events in the facility ****/\n\n");
- // fprintf(fp,"int nbEvents_%s = %d;\n\n\n",facName, fac->events.position);
- *nbEvent = fac->events.position;
+ strncpy(basename, nest_name, PATH_MAX);
+ basename_len = strlen(basename);
+
+ /* For a named type, we use the type_name directly */
+ if(td->type_name != NULL) {
+ strncpy(basename, td->type_name, PATH_MAX);
+ basename_len = strlen(basename);
+ } else {
+ /* For a unnamed type, there must be a field name, except for
+ * the array. */
+ if((basename_len != 0)
+ && (basename[basename_len-1] != '_'
+ && (field_name[0] != '\0'))) {
+ strncat(basename, "_", PATH_MAX - basename_len);
+ basename_len = strlen(basename);
+ }
+ strncat(basename, field_name, PATH_MAX - basename_len);
+ }
+
+ switch(td->type) {
+ case SEQUENCE:
+ if(((field_t*)td->fields.array[1])->type->type_name == NULL) {
+ /* Not a named nested type : we must print its align fct */
+ if(print_type_alignment_fct(((field_t*)td->fields.array[1])->type, fd,
+ 0, basename, "")) return 1;
+ }
+ /* Function header */
+ fprintf(fd, "static inline size_t lttng_get_alignment_sequence_%s(\n",
+ basename);
+ print_tabs(2, fd);
+ if(print_type(td, fd, 0, basename, "")) return 1;
+ fprintf(fd, " *obj)\n");
+ fprintf(fd, "{\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t align=0, localign;");
+ fprintf(fd, "\n");
+ print_tabs(1, fd);
+ fprintf(fd, "localign = ");
+ if(print_type_alignment(((field_t*)td->fields.array[0])->type,
+ fd, 0, basename, "len", "obj->")) return 1;
+ fprintf(fd, ";\n");
+ print_tabs(1, fd);
+ fprintf(fd, "align = max(align, localign);\n");
+ fprintf(fd, "\n");
+ print_tabs(1, fd);
+ fprintf(fd, "localign = ");
+ if(print_type_alignment(((field_t*)td->fields.array[1])->type,
+ fd, 0, basename, "array[0]", "obj->")) return 1;
+ fprintf(fd, ";\n");
+ print_tabs(1, fd);
+ fprintf(fd, "align = max(align, localign);\n");
+ fprintf(fd, "\n");
+ print_tabs(1, fd);
+ fprintf(fd, "return align;\n");
+ break;
+ case STRUCT:
+ for(unsigned int i=0;i<td->fields.position;i++){
+ field_t *field = (field_t*)(td->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ if(type->type_name == NULL) {
+ /* Not a named nested type : we must print its align fct */
+ if(print_type_alignment_fct(type, fd,
+ 0, basename, field->name)) return 1;
+ }
+ }
+ /* Function header */
+ fprintf(fd, "static inline size_t lttng_get_alignment_struct_%s(\n",
+ basename);
+ print_tabs(2, fd);
+ if(print_type(td, fd, 0, basename, "")) return 1;
+ fprintf(fd, " *obj)\n");
+ fprintf(fd, "{\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t align=0, localign;");
+ fprintf(fd, "\n");
+ for(unsigned int i=0;i<td->fields.position;i++){
+ field_t *field = (field_t*)(td->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ print_tabs(1, fd);
+ fprintf(fd, "localign = ");
+ if(print_type_alignment(type, fd, 0, basename, field->name, "obj->"))
+ return 1;
+ fprintf(fd, ";\n");
+ print_tabs(1, fd);
+ fprintf(fd, "align = max(align, localign);\n");
+ fprintf(fd, "\n");
+ }
+ print_tabs(1, fd);
+ fprintf(fd, "return align;\n");
+
+ break;
+ case UNION:
+ for(unsigned int i=0;i<td->fields.position;i++){
+ field_t *field = (field_t*)(td->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ if(type->type_name == NULL) {
+ /* Not a named nested type : we must print its align fct */
+ if(print_type_alignment_fct(type, fd,
+ 0, basename, field->name)) return 1;
+ }
+ }
+ /* Function header */
+ fprintf(fd, "static inline size_t lttng_get_alignment_union_%s(\n",
+ basename);
+ print_tabs(2, fd);
+ if(print_type(td, fd, 0, basename, "")) return 1;
+ fprintf(fd, " *obj)\n");
+ fprintf(fd, "{\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t align=0, localign;");
+ fprintf(fd, "\n");
+ for(unsigned int i=0;i<td->fields.position;i++){
+ field_t *field = (field_t*)(td->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ print_tabs(1, fd);
+ fprintf(fd, "localign = ");
+ if(print_type_alignment(type, fd, 0, basename, field->name, "obj->"))
+ return 1;
+ fprintf(fd, ";\n");
+ print_tabs(1, fd);
+ fprintf(fd, "align = max(align, localign);\n");
+ fprintf(fd, "\n");
+ }
+ print_tabs(1, fd);
+ fprintf(fd, "return align;\n");
+
+ break;
+ case ARRAY:
+ if(((field_t*)td->fields.array[0])->type->type_name == NULL) {
+ /* Not a named nested type : we must print its align fct */
+ if(print_type_alignment_fct(((field_t*)td->fields.array[0])->type, fd,
+ 0, basename, "")) return 1;
+ }
+ /* Function header */
+ fprintf(fd, "static inline size_t lttng_get_alignment_array_%s(\n",
+ basename);
+ print_tabs(2, fd);
+ if(print_type(td, fd, 0, basename, "")) return 1;
+ fprintf(fd, " obj)\n");
+ fprintf(fd, "{\n");
+ print_tabs(1, fd);
+ fprintf(fd, "return \n");
+ if(print_type_alignment(((field_t*)td->fields.array[0])->type,
+ fd, 0, basename, "", "obj[0]"))
+ return 1;
+ fprintf(fd, ";\n");
+ break;
+ default:
+ dprintf("print_type_alignment_fct : type has no alignment function.\n");
+ return 0;
+ break;
+ }
+
+
+ /* Function footer */
+ fprintf(fd, "}\n");
+ fprintf(fd, "\n");
+
+ return 0;
}
+/* print type write function.
+ *
+ * Copied from construct_types_and_fields in LTTV facility.c
+ *
+ * basename is the name which identifies the type (along with a prefix
+ * (possibly)). */
+
+int print_type_write_fct(type_descriptor_t * td, FILE *fd, unsigned int tabs,
+ char *nest_name, char *field_name)
+{
+ char basename[PATH_MAX];
+ unsigned int basename_len = 0;
+
+ if(td->custom_write) return 0; /* Does print custom type */
+
+ strncpy(basename, nest_name, PATH_MAX);
+ basename_len = strlen(basename);
+
+ /* For a named type, we use the type_name directly */
+ if(td->type_name != NULL) {
+ strncpy(basename, td->type_name, PATH_MAX);
+ basename_len = strlen(basename);
+ } else {
+ /* For a unnamed type, there must be a field name, except for
+ * the array. */
+ if((basename_len != 0)
+ && (basename[basename_len-1] != '_'
+ && (field_name[0] != '\0'))) {
+ strncat(basename, "_", PATH_MAX - basename_len);
+ basename_len = strlen(basename);
+ }
+ strncat(basename, field_name, PATH_MAX - basename_len);
+ }
+
+ switch(td->type) {
+ case SEQUENCE:
+ if(((field_t*)td->fields.array[1])->type->type_name == NULL) {
+ /* Not a named nested type : we must print its write fct */
+ if(print_type_write_fct(((field_t*)td->fields.array[1])->type, fd,
+ 0, basename, "")) return 1;
+ }
+ break;
+ case STRUCT:
+ for(unsigned int i=0;i<td->fields.position;i++){
+ field_t *field = (field_t*)(td->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ if(type->type_name == NULL) {
+ /* Not a named nested type : we must print its write fct */
+ if(print_type_write_fct(type, fd,
+ 0, basename, field->name)) return 1;
+ }
+ }
+ break;
+ case UNION:
+ for(unsigned int i=0;i<td->fields.position;i++){
+ field_t *field = (field_t*)(td->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ if(type->type_name == NULL) {
+ /* Not a named nested type : we must print its write fct */
+ if(print_type_write_fct(type, fd,
+ 0, basename, field->name)) return 1;
+ }
+ }
+ break;
+ case ARRAY:
+ if(((field_t*)td->fields.array[0])->type->type_name == NULL) {
+ /* Not a named nested type : we must print its write fct */
+ if(print_type_write_fct(((field_t*)td->fields.array[0])->type, fd,
+ 0, basename, "")) return 1;
+ }
+ break;
+ case STRING:
+ break;
+ default:
+ dprintf("print_type_write_fct : type has no write function.\n");
+ return 0;
+ break;
+ }
+
+ /* Print header */
+ switch(td->type) {
+ case SEQUENCE:
+ fprintf(fd, "static inline void lttng_write_sequence_%s(\n",
+ basename);
+ break;
+ case STRUCT:
+ fprintf(fd, "static inline void lttng_write_struct_%s(\n", basename);
+ break;
+ case UNION:
+ fprintf(fd, "static inline void lttng_write_union_%s(\n", basename);
+ break;
+ case ARRAY:
+ fprintf(fd, "static inline void lttng_write_array_%s(\n", basename);
+ break;
+ case STRING:
+ fprintf(fd, "static inline void lttng_write_string_%s(\n", basename);
+ break;
+ default:
+ printf("print_type_write_fct : type has no write function.\n");
+ break;
+ }
+
+ print_tabs(2, fd);
+ fprintf(fd, "char *buffer,\n");
+ print_tabs(2, fd);
+ fprintf(fd, "size_t *to_base,\n");
+ print_tabs(2, fd);
+ fprintf(fd, "size_t *to,\n");
+ print_tabs(2, fd);
+ fprintf(fd, "const char **from,\n");
+ print_tabs(2, fd);
+ fprintf(fd, "size_t *len,\n");
+ print_tabs(2, fd);
+ if(print_type(td, fd, 0, basename, "")) return 1;
+
+ switch(td->type) {
+ case SEQUENCE:
+ fprintf(fd, " *obj)\n");
+ break;
+ case STRUCT:
+ fprintf(fd, " *obj)\n");
+ break;
+ case UNION:
+ fprintf(fd, " *obj)\n");
+ break;
+ case ARRAY:
+ fprintf(fd, " obj)\n");
+ break;
+ case STRING:
+ fprintf(fd, " obj)\n");
+ break;
+ default:
+ printf("print_type_write_fct : type has no write function.\n");
+ break;
+ }
+
+ fprintf(fd, "{\n");
+
+ switch(td->type) {
+ case STRING:
+ print_tabs(1, fd);
+ fprintf(fd, "size_t size;\n");
+ break;
+ default:
+ break;
+ }
+
+ print_tabs(1, fd);
+ fprintf(fd, "size_t align;\n");
+ fprintf(fd, "\n");
+
+ switch(td->type) {
+ case SEQUENCE:
+ case STRING:
+ print_tabs(1, fd);
+ fprintf(fd, "/* Flush pending memcpy */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "if (*len != 0) {\n");
+ print_tabs(2, fd);
+ fprintf(fd, "if (buffer != NULL)\n");
+ print_tabs(3, fd);
+ fprintf(fd, "memcpy(buffer+*to_base+*to, *from, *len);\n");
+ print_tabs(1, fd);
+ fprintf(fd, "}\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*to += *len;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*len = 0;\n");
+ fprintf(fd, "\n");
+ break;
+ case STRUCT:
+ case UNION:
+ case ARRAY:
+ break;
+ default:
+ printf("print_type_write_fct : type has no write function.\n");
+ break;
+ }
+
+ print_tabs(1, fd);
+ fprintf(fd, "align = ");
+ if(td->fac->align) {
+ if(print_type_alignment(td, fd, 0, basename, "", "obj")) return 1;
+ } else
+ fprintf(fd, "0");
+ fprintf(fd, ";\n");
+ fprintf(fd, "\n");
+ print_tabs(1, fd);
+ fprintf(fd, "if (*len == 0) {\n");
+ print_tabs(2, fd);
+ fprintf(fd, "*to += ltt_align(*to, align); /* align output */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "} else {\n");
+ print_tabs(2, fd);
+ fprintf(fd, "*len += ltt_align(*to+*len, align); /* alignment, ok to do a memcpy of it */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "}\n");
+ fprintf(fd, "\n");
+
+ /* First, check if the type has a fixed size. If it is the case, then the size
+ * to write is know by the compiler : simply use a sizeof() */
+ if(has_type_fixed_size(td)) {
+ print_tabs(1, fd);
+ fprintf(fd, "/* Contains only fixed size fields : use compiler sizeof() */\n");
+ fprintf(fd, "\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*len += sizeof(");
+ if(print_type(td, fd, 0, basename, field_name)) return 1;
+ fprintf(fd, ");\n");
+ } else {
+ /* The type contains nested variable size subtypes :
+ * we must write field by field. */
+ print_tabs(1, fd);
+ fprintf(fd, "/* Contains variable sized fields : must explode the structure */\n");
+ fprintf(fd, "\n");
+
+ switch(td->type) {
+ case SEQUENCE:
+ print_tabs(1, fd);
+ fprintf(fd, "/* Copy members */\n");
+// print_tabs(1, fd);
+// fprintf(fd, "size = sizeof(\n");
+ if(print_type_write(((field_t*)td->fields.array[0])->type,
+ fd, 1, basename, "len", "obj->", 1)) return 1;
+ fprintf(fd, "\n");
+// fprintf(fd, ");\n");
+// print_tabs(1, fd);
+// fprintf(fd, "*to += ltt_align(*to, size);\n");
+ print_tabs(1, fd);
+ fprintf(fd, "if (buffer != NULL)\n");
+ print_tabs(2, fd);
+ fprintf(fd, "memcpy(buffer+*to_base+*to, &obj->len, *len);\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*to += *len;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*len = 0;\n");
+ fprintf(fd, "\n");
+
+ /* Write the child : varlen child or not ? */
+ if(has_type_fixed_size(((field_t*)td->fields.array[1])->type)) {
+ /* Fixed size len child : use a multiplication of its size */
+// print_tabs(1, fd);
+// fprintf(fd, "size = sizeof(\n");
+
+ //print_tabs(1, fd);
+ /* We know that *len does not contain alignment because of the
+ * previous align output. len is always 0 here. */
+ if(print_type_write(((field_t*)td->fields.array[1])->type,
+ fd, 1, basename, "array[0]", "obj->", 1))
+ return 1;
+// fprintf(fd, ");\n");
+ fprintf(fd, "\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*len = obj->len * (*len);\n");
+ print_tabs(1, fd);
+ fprintf(fd, "if (buffer != NULL)\n");
+ print_tabs(2, fd);
+ fprintf(fd, "memcpy(buffer+*to_base+*to, obj->array, *len);\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*to += *len;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*len = 0;\n");
+ fprintf(fd, "\n");
+ } else {
+ print_tabs(1, fd);
+ fprintf(fd, "/* Variable length child : iter. */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "for (unsigned int i = 0; i < obj->len; i++) {\n");
+ if(print_type_write(((field_t*)td->fields.array[1])->type,
+ fd, 2, basename, "array[i]", "obj->", 1)) return 1;
+ print_tabs(1, fd);
+ fprintf(fd, "}\n");
+ }
+ fprintf(fd, "\n");
+ print_tabs(1, fd);
+ fprintf(fd, "/* Realign the *to_base on arch size, set *to to 0 */\n");
+ print_tabs(1, fd);
+ if(td->fac->align)
+ fprintf(fd, "*to += ltt_align(*to, sizeof(void *));\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*to_base = *to_base+*to;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*to = 0;\n");
+ fprintf(fd, "\n");
+ print_tabs(1, fd);
+ fprintf(fd, "/* Put source *from just after the C sequence */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*from = (const char*)(obj+1);\n");
+ break;
+ case STRING:
+ print_tabs(1, fd);
+ fprintf(fd, "size = strlen(obj) + 1; /* Include final NULL char. */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "if (buffer != NULL)\n");
+ print_tabs(2, fd);
+ fprintf(fd, "memcpy(buffer+*to_base+*to, obj, size);\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*to += size;\n");
+ fprintf(fd, "\n");
+ print_tabs(1, fd);
+ fprintf(fd, "/* Realign the *to_base on arch size, set *to to 0 */\n");
+ print_tabs(1, fd);
+ if(td->fac->align)
+ fprintf(fd, "*to += ltt_align(*to, sizeof(void *));\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*to_base = *to_base+*to;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*to = 0;\n");
+ fprintf(fd, "\n");
+ print_tabs(1, fd);
+ fprintf(fd, "/* Put source *from just after the C string */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "*from += size;\n");
+ break;
+ case STRUCT:
+ for(unsigned int i=0;i<td->fields.position;i++){
+ field_t *field = (field_t*)(td->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ if(print_type_write(type,
+ fd, 1, basename, field->name, "obj->", 1)) return 1;
+ fprintf(fd, "\n");
+ }
+ break;
+ case UNION:
+ printf("ERROR : A union CANNOT contain a variable size child.\n");
+ return 1;
+ break;
+ case ARRAY:
+ /* Write the child : varlen child or not ? */
+ if(has_type_fixed_size(((field_t*)td->fields.array[0])->type)) {
+ /* Error : if an array has a variable size, then its child must also
+ * have a variable size. */
+ assert(0);
+ } else {
+ print_tabs(1, fd);
+ fprintf(fd, "/* Variable length child : iter. */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "for (unsigned int i = 0; i < LTTNG_ARRAY_SIZE_%s; i++) {\n", basename);
+ if(print_type_write(((field_t*)td->fields.array[0])->type,
+ fd, 2, basename, "", "obj->array[i]", 1)) return 1;
+ print_tabs(1, fd);
+ fprintf(fd, "}\n");
+ }
+ break;
+ default:
+ printf("print_type_write_fct : type has no write function.\n");
+ break;
+ }
+
+
+ }
+
+
+ /* Function footer */
+ fprintf(fd, "}\n");
+ fprintf(fd, "\n");
+ return 0;
+}
-/*****************************************************************************
- *Function name
- * printStruct : Generic struct printing function
- *Input Params
- * fp : file to be written to
- * len : number of fields
- * array : array of field info
- * name : basic struct name
- * facName : name of facility
- * whichTypeFirst : struct or array/sequence first
- * hasStrSeq : string or sequence present?
- * structCount : struct postfix
- ****************************************************************************/
-static void
-printStruct(FILE * fp, int len, void ** array, char * name, char * facName,
- int * whichTypeFirst, int * hasStrSeq, int * structCount,
- type_descriptor *type)
+
+/* Print the logging function of an event. This is the core of genevent */
+int print_event_logging_function(char *basename, facility_t *fac,
+ event_t *event, FILE *fd)
{
- int flag = 0;
- int pos;
- field * fld;
- type_descriptor * td;
-
- for (pos = 0; pos < len; pos++) {
- fld = (field *)array[pos];
- td = fld->type;
- if( td->type == STRING || td->type == SEQUENCE ||
- td->type == ARRAY) {
- (*hasStrSeq)++;
- }
-// if (*whichTypeFirst == 0) {
-// *whichTypeFirst = 1; //struct first
-// }
- if (flag == 0) {
- flag = 1;
-
- fprintf(fp,"struct %s_%s",name, facName);
- if (structCount) {
- fprintf(fp, "_%d {\n",++*structCount);
- } else {
- fprintf(fp, " {\n");
- }
- }
- fprintf(fp, "\t%s %s; /* %s */\n",
- getTypeStr(td),fld->name,fld->description );
+ fprintf(fd, "static inline void trace_%s(\n", basename);
+ int has_argument = 0;
+ int has_type_fixed = 0;
+
+ /* Does it support per trace tracing ? */
+ if(event->per_trace) {
+ print_tabs(2, fd);
+ fprintf(fd, "struct ltt_trace_struct *dest_trace");
+ has_argument = 1;
+ }
+
+ /* Does it support per tracefile tracing ? */
+ if(event->per_tracefile) {
+ if(has_argument) {
+ fprintf(fd, ",");
+ fprintf(fd, "\n");
+ }
+ fprintf(fd, "unsigned int tracefile_index");
+ has_argument = 1;
+ }
+
+ for(unsigned int j = 0; j < event->fields.position; j++) {
+ /* For each field, print the function argument */
+ field_t *f = (field_t*)event->fields.array[j];
+ type_descriptor_t *t = f->type;
+ if(has_argument) {
+ fprintf(fd, ",");
+ fprintf(fd, "\n");
+ }
+ if(print_arg(t, fd, 2, basename, f->name)) return 1;
+ has_argument = 1;
+ }
+ if(!has_argument) {
+ print_tabs(2, fd);
+ fprintf(fd, "void");
+ }
+ fprintf(fd,")\n");
#if 0
- } else {
- if (*whichTypeFirst == 0) {
- //string or sequence or array first
- *whichTypeFirst = 2;
- }
- (*hasStrSeq)++;
- if(flag) {
- fprintf(fp,"} __attribute__ ((packed));\n\n");
- }
- flag = 0;
- }
+ fprintf(fd,
+ "#if (!defined(CONFIG_LTT) || (!defined(CONFIG_LTT_FACILITY_%s) && !defined(CONFIG_LTT_FACILITY_%s_MODULE)))\n",
+ fac->capname, fac->capname);
+ fprintf(fd, "{\n");
+ fprintf(fd, "}\n");
+ fprintf(fd,"#else\n");
#endif //0
- }
+ fprintf(fd, "{\n");
+ /* Print the function variables */
+ print_tabs(1, fd);
+ fprintf(fd, "unsigned int index;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "struct ltt_channel_struct *channel;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "struct ltt_trace_struct *trace;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "void *transport_data;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "char *buffer = NULL;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t real_to_base = 0; /* The buffer is allocated on arch_size alignment */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t *to_base = &real_to_base;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t real_to = 0;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t *to = &real_to;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t real_len = 0;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t *len = &real_len;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t reserve_size;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t slot_size;\n");
+ print_tabs(1, fd);
+
+ if(event->fields.position > 0) {
+ for(unsigned int i=0;i<event->fields.position;i++){
+ /* Search for at least one child with fixed size. It means
+ * we need local variables.*/
+ field_t *field = (field_t*)(event->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ has_type_fixed = has_type_local(type);
+ if(has_type_fixed) break;
+ }
+
+ if(has_type_fixed) {
+ fprintf(fd, "size_t align;\n");
+ print_tabs(1, fd);
+ }
- if(flag) {
- if(type->alignment == 0)
- fprintf(fp,"} __attribute__ ((packed));\n\n");
- else {
- if(type->alignment != 1 && type->alignment != 2
- && type->alignment != 4 && type->alignment != 8) {
- printf("Wrong alignment %i, using packed.\n", type->alignment);
- fprintf(fp,"} __attribute__ ((packed));\n\n");
- } else
- fprintf(fp,"} __attribute__ ((aligned(%i)));\n\n", type->alignment);
- }
- }
+ fprintf(fd, "const char *real_from;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "const char **from = &real_from;\n");
+ print_tabs(1, fd);
+ }
+ fprintf(fd, "u64 tsc;\n");
+ fprintf(fd, "\n");
+
+ if(!event->force) {
+ print_tabs(1, fd);
+ fprintf(fd, "if (ltt_traces.num_active_traces == 0)\n");
+ print_tabs(2, fd);
+ fprintf(fd, "return;\n");
+ fprintf(fd, "\n");
+ }
+
+ /* Calculate event variable len + event data alignment offset.
+ * Assume that the padding for alignment starts at a void*
+ * address.
+ * This excludes the header size and alignment. */
+
+ print_tabs(1, fd);
+ fprintf(fd, "/* For each field, calculate the field size. */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "/* size = *to_base + *to + *len */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "/* Assume that the padding for alignment starts at a\n");
+ print_tabs(1, fd);
+ fprintf(fd, " * sizeof(void *) address. */\n");
+ fprintf(fd, "\n");
+
+ for(unsigned int i=0;i<event->fields.position;i++){
+ field_t *field = (field_t*)(event->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ /* Set from */
+ print_tabs(1, fd);
+ switch(type->type) {
+ case SEQUENCE:
+ case UNION:
+ case ARRAY:
+ case STRUCT:
+ case STRING:
+ fprintf(fd, "*from = (const char*)lttng_param_%s;\n", field->name);
+ break;
+ default:
+ fprintf(fd, "*from = (const char*)<tng_param_%s;\n", field->name);
+ break;
+ }
+
+ if(print_type_write(type,
+ fd, 1, basename, field->name, "lttng_param_", 0)) return 1;
+ fprintf(fd, "\n");
+ }
+ print_tabs(1, fd);
+ fprintf(fd, "reserve_size = *to_base + *to + *len;\n");
+
+ /* Take locks : make sure the trace does not vanish while we write on
+ * it. A simple preemption disabling is enough (using rcu traces). */
+ print_tabs(1, fd);
+ fprintf(fd, "preempt_disable();\n");
+ print_tabs(1, fd);
+ fprintf(fd, "ltt_nesting[smp_processor_id()]++;\n");
+
+ /* Get facility index */
+
+ if(event->per_tracefile) {
+ print_tabs(1, fd);
+ fprintf(fd, "index = tracefile_index;\n");
+ } else {
+ print_tabs(1, fd);
+ fprintf(fd,
+ "index = ltt_get_index_from_facility_%s(" \
+ "\t\t\t\t\t\tevent_%s_%s);\n",
+ fac->name, fac->name, event->name);
+ }
+ fprintf(fd,"\n");
+
+
+ /* For each trace */
+ print_tabs(1, fd);
+ fprintf(fd, "list_for_each_entry_rcu(trace, <t_traces.head, list) {\n");
+ if(!event->force) {
+ print_tabs(2, fd);
+ fprintf(fd, "if (!trace->active)\n");
+ print_tabs(3, fd);
+ fprintf(fd, "continue;\n\n");
+ }
+
+ if(event->per_trace) {
+ print_tabs(2, fd);
+ fprintf(fd, "if (dest_trace != trace)\n");
+ print_tabs(3, fd);
+ fprintf(fd, "continue;\n\n");
+ }
+
+ print_tabs(2, fd);
+ fprintf(fd, "channel = ltt_get_channel_from_index(trace, index);\n");
+ fprintf(fd, "\n");
+
+
+ /* Relay reserve */
+ /* If error, increment event lost counter (done by ltt_reserve_slot) and
+ * return */
+ print_tabs(2, fd);
+ fprintf(fd, "slot_size = 0;\n");
+ print_tabs(2, fd);
+ fprintf(fd, "buffer = ltt_reserve_slot(trace, channel, &transport_data,\n");
+ print_tabs(3, fd);
+ fprintf(fd, "reserve_size, &slot_size, &tsc);\n");
+ /* If error, return */
+ print_tabs(2, fd);
+ fprintf(fd, "if (!buffer)\n");
+ print_tabs(3, fd);
+ fprintf(fd, "continue; /* buffer full */\n\n");
+ //print_tabs(2, fd);
+ // for DEBUG only
+ // fprintf(fd, "goto commit; /* DEBUG : never actually write. */\n\n");
+ print_tabs(2, fd);
+ fprintf(fd, "*to_base = *to = *len = 0;\n");
+ fprintf(fd, "\n");
+
+ /* Write event header */
+ if(strcmp("compact", fac->name) != 0) {
+ print_tabs(2, fd);
+ fprintf(fd, "buffer = ltt_write_event_header(trace, channel, buffer,\n");
+ print_tabs(3, fd);
+ fprintf(fd, "ltt_facility_%s_%X, event_%s_%s,\n", fac->name, fac->checksum,
+ fac->name, event->name);
+ print_tabs(3, fd);
+ fprintf(fd, "reserve_size, tsc);\n");
+ } else {
+ print_tabs(2, fd);
+ fprintf(fd, "buffer = ltt_write_compact_header(trace, channel, buffer,\n");
+ print_tabs(3, fd);
+ fprintf(fd, "ltt_facility_%s_%X, event_%s_%s,\n", fac->name, fac->checksum,
+ fac->name, event->name);
+ print_tabs(3, fd);
+ if(event->compact_data) {
+ assert(event->fields.position > 0);
+ field_t *field = (field_t*)(event->fields.array[0]);
+ fprintf(fd, "reserve_size, tsc, lttng_param_%s);\n",
+ field->name);
+ } else
+ fprintf(fd, "reserve_size, tsc, 0);\n");
+ }
+
+ /* write data. */
+
+ for(unsigned int i=0;i<event->fields.position;i++){
+ field_t *field = (field_t*)(event->fields.array[i]);
+ type_descriptor_t *type = field->type;
+
+ /* First param is compacted in the header */
+ if(event->compact_data && i == 0)
+ continue;
+ /* Set from */
+ print_tabs(2, fd);
+ switch(type->type) {
+ case SEQUENCE:
+ case UNION:
+ case ARRAY:
+ case STRUCT:
+ case STRING:
+ fprintf(fd, "*from = (const char*)lttng_param_%s;\n", field->name);
+ break;
+ default:
+ fprintf(fd, "*from = (const char*)<tng_param_%s;\n", field->name);
+ break;
+ }
+
+
+ if(print_type_write(type,
+ fd, 2, basename, field->name, "lttng_param_", 0)) return 1;
+ fprintf(fd, "\n");
+
+ /* Don't forget to flush pending memcpy */
+ print_tabs(2, fd);
+ fprintf(fd, "/* Flush pending memcpy */\n");
+ print_tabs(2, fd);
+ fprintf(fd, "if (*len != 0) {\n");
+ print_tabs(3, fd);
+ fprintf(fd, "memcpy(buffer+*to_base+*to, *from, *len);\n");
+ print_tabs(3, fd);
+ fprintf(fd, "*to += *len;\n");
+ //print_tabs(3, fd);
+ //fprintf(fd, "from += len;\n");
+ print_tabs(3, fd);
+ fprintf(fd, "*len = 0;\n");
+ print_tabs(2, fd);
+ fprintf(fd, "}\n");
+ fprintf(fd, "\n");
+ }
+
+
+ /* commit */
+ // for DEBUG only.
+ //fprintf(fd, "commit:\n"); /* DEBUG! */
+ print_tabs(2, fd);
+ fprintf(fd, "ltt_commit_slot(channel, &transport_data, buffer, slot_size);\n\n");
+
+ print_tabs(1, fd);
+ fprintf(fd, "}\n\n");
+
+ /* Release locks */
+ print_tabs(1, fd);
+ fprintf(fd, "ltt_nesting[smp_processor_id()]--;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "preempt_enable();\n");
+
+ fprintf(fd, "}\n");
+#if 0
+ fprintf(fd, "#endif //(!defined(CONFIG_LTT) || (!defined(CONFIG_LTT_FACILITY_%s) && !defined(CONFIG_LTT_FACILITY_%s_MODULE)))\n\n",
+ fac->capname, fac->capname);
+#endif //0
+ return 0;
}
+int print_event_logging_function_header_user_generic(char *basename, facility_t *fac,
+ event_t *event, FILE *fd, enum user_fct_types fct_type)
+{
+ char *attrib;
+
+ if(event->no_instrument_function && fct_type == USER_FCT_PROTO) {
+ attrib = "__attribute__((no_instrument_function)) ";
+ } else {
+ attrib = "";
+ }
+ if(event->param_buffer) {
+ fprintf(fd, "static inline %sint trace_%s_param_buffer(\n", attrib, basename);
+ } else {
+ fprintf(fd, "static inline %sint trace_%s(\n",attrib, basename);
+ }
+ int has_argument = 0;
+
+ if(event->param_buffer) {
+ if(has_argument) {
+ fprintf(fd, ",");
+ fprintf(fd, "\n");
+ }
+ print_tabs(2, fd);
+ fprintf(fd, "char *buffer");
+ has_argument = 1;
+ fprintf(fd, ",");
+ fprintf(fd, "\n");
+ print_tabs(2, fd);
+ fprintf(fd, "size_t reserve_size");
+ } else {
+ for(unsigned int j = 0; j < event->fields.position; j++) {
+ /* For each field, print the function argument */
+ field_t *f = (field_t*)event->fields.array[j];
+ type_descriptor_t *t = f->type;
+ if(has_argument) {
+ fprintf(fd, ",");
+ fprintf(fd, "\n");
+ }
+ if(print_arg(t, fd, 2, basename, f->name)) return 1;
+ has_argument = 1;
+ }
+ }
+ if(!has_argument) {
+ print_tabs(2, fd);
+ fprintf(fd, "void");
+ }
+ fprintf(fd,")");
+ return 0;
+}
-/*****************************************************************************
- *Function name
- * generateHfile : Create the typedefs
- *Input Params
- * fp : file to be written to
- ****************************************************************************/
-void
-generateTypeDefs(FILE * fp, char *facName)
+
+/* print_event_logging_function_user_generic
+ * Print the logging function of an event for userspace tracing. This is the
+ * core of genevent */
+int print_event_logging_function_user_generic(char *basename, facility_t *fac,
+ event_t *event, FILE *fd)
{
- int pos, tmp = 1;
-
- fprintf(fp,"#include <linux/types.h>\n");
- fprintf(fp,"#include <linux/spinlock.h>\n");
- fprintf(fp,"#include <linux/ltt/ltt-facility-id-%s.h>\n\n", facName);
- fprintf(fp,"#include <linux/ltt-core.h>\n");
-
-#if 0 //broken
- fprintf(fp, "/**** Basic Type Definitions ****/\n\n");
-
- for (pos = 0; pos < fac->named_types.values.position; pos++) {
- type_descriptor * type =
- (type_descriptor*)fac->named_types.values.array[pos];
- printStruct(fp, type->fields.position, type->fields.array,
- "", type->type_name, &tmp, &tmp, NULL);
- fprintf(fp, "typedef struct _%s %s;\n\n",
- type->type_name, type->type_name);
- }
-#endif //0
+ int has_type_fixed = 0;
+
+ if(print_event_logging_function_header_user_generic(basename, fac, event, fd, USER_FCT_PROTO)) return 1;
+ fprintf(fd,";\n");
+ fprintf(fd,"\n");
+ fprintf(fd, "#ifndef LTT_TRACE_FAST\n");
+ if(print_event_logging_function_header_user_generic(basename, fac, event, fd, USER_FCT_DECLARATION)) return 1;
+ fprintf(fd,"\n");
+ fprintf(fd,
+ "#ifndef LTT_TRACE\n");
+ fprintf(fd, "{\n");
+ fprintf(fd, "}\n");
+ fprintf(fd,"#else\n");
+ fprintf(fd, "{\n");
+ /* Print the function variables */
+ print_tabs(1, fd);
+ fprintf(fd, "int ret = 0;\n");
+ if(event->param_buffer) {
+ //FIX print_tabs(1, fd);
+ //fprintf(fd, "reserve_size = ltt_align(reserve_size, sizeof(void *));\n");
+ print_tabs(1, fd);
+ fprintf(fd, "{\n");
+ goto do_syscall;
+ }
+ print_tabs(1, fd);
+ fprintf(fd, "char *buffer = NULL;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t real_to_base = 0; /* The buffer is allocated on arch_size alignment */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t *to_base = &real_to_base;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t real_to = 0;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t *to = &real_to;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t real_len = 0;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t *len = &real_len;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t reserve_size;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t slot_size;\n");
+ print_tabs(1, fd);
+
+ if(event->fields.position > 0) {
+ for(unsigned int i=0;i<event->fields.position;i++){
+ /* Search for at least one child with fixed size. It means
+ * we need local variables.*/
+ field_t *field = (field_t*)(event->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ has_type_fixed = has_type_local(type);
+ if(has_type_fixed) break;
+ }
+
+ if(has_type_fixed) {
+ fprintf(fd, "size_t align;\n");
+ print_tabs(1, fd);
+ }
+
+ fprintf(fd, "const char *real_from;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "const char **from = &real_from;\n");
+ print_tabs(1, fd);
+ }
+
+ /* Calculate event variable len + event data alignment offset.
+ * Assume that the padding for alignment starts at a void*
+ * address.
+ * This excludes the header size and alignment. */
+
+ print_tabs(1, fd);
+ fprintf(fd, "/* For each field, calculate the field size. */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "/* size = *to_base + *to + *len */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "/* Assume that the padding for alignment starts at a\n");
+ print_tabs(1, fd);
+ fprintf(fd, " * sizeof(void *) address. */\n");
+ fprintf(fd, "\n");
+
+ for(unsigned int i=0;i<event->fields.position;i++){
+ field_t *field = (field_t*)(event->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ /* Set from */
+ print_tabs(1, fd);
+ switch(type->type) {
+ case SEQUENCE:
+ case UNION:
+ case ARRAY:
+ case STRUCT:
+ case STRING:
+ fprintf(fd, "*from = (const char*)lttng_param_%s;\n", field->name);
+ break;
+ default:
+ fprintf(fd, "*from = (const char*)<tng_param_%s;\n", field->name);
+ break;
+ }
+
+ if(print_type_write(type,
+ fd, 1, basename, field->name, "lttng_param_", 0)) return 1;
+ fprintf(fd, "\n");
+ }
+ print_tabs(1, fd);
+ fprintf(fd, "reserve_size = *to_base + *to + *len;\n");
+
+ print_tabs(1, fd);
+ fprintf(fd, "{\n");
+ print_tabs(2, fd);
+ fprintf(fd, "char stack_buffer[reserve_size];\n");
+ print_tabs(2, fd);
+ fprintf(fd, "buffer = stack_buffer;\n");
+ fprintf(fd, "\n");
+
+
+ //print_tabs(2, fd);
+ // for DEBUG only
+ // fprintf(fd, "goto commit; /* DEBUG : never actually write. */\n\n");
+ print_tabs(2, fd);
+ fprintf(fd, "*to_base = *to = *len = 0;\n");
+ fprintf(fd, "\n");
+
+ /* write data. */
+
+ for(unsigned int i=0;i<event->fields.position;i++){
+ field_t *field = (field_t*)(event->fields.array[i]);
+ type_descriptor_t *type = field->type;
+
+ /* Set from */
+ print_tabs(2, fd);
+ switch(type->type) {
+ case SEQUENCE:
+ case UNION:
+ case ARRAY:
+ case STRUCT:
+ case STRING:
+ fprintf(fd, "*from = (const char*)lttng_param_%s;\n", field->name);
+ break;
+ default:
+ fprintf(fd, "*from = (const char*)<tng_param_%s;\n", field->name);
+ break;
+ }
+
+
+ if(print_type_write(type,
+ fd, 2, basename, field->name, "lttng_param_", 0)) return 1;
+ fprintf(fd, "\n");
+
+ /* Don't forget to flush pending memcpy */
+ print_tabs(2, fd);
+ fprintf(fd, "/* Flush pending memcpy */\n");
+ print_tabs(2, fd);
+ fprintf(fd, "if (*len != 0) {\n");
+ print_tabs(3, fd);
+ fprintf(fd, "memcpy(buffer+*to_base+*to, *from, *len);\n");
+ print_tabs(3, fd);
+ fprintf(fd, "*to += *len;\n");
+ //print_tabs(3, fd);
+ //fprintf(fd, "from += len;\n");
+ print_tabs(3, fd);
+ fprintf(fd, "*len = 0;\n");
+ print_tabs(2, fd);
+ fprintf(fd, "}\n");
+ fprintf(fd, "\n");
+ }
+
+do_syscall:
+ print_tabs(2, fd);
+ fprintf(fd, "ret = ltt_trace_generic(ltt_facility_%s_%X, event_%s_%s, buffer, reserve_size, LTT_BLOCKING, %u);\n", fac->name, fac->checksum, fac->name, event->name, event->high_priority);
+
+ print_tabs(1, fd);
+ fprintf(fd, "}\n\n");
+
+ print_tabs(1, fd);
+ fprintf(fd, "return ret;\n\n");
+
+ fprintf(fd, "}\n");
+ fprintf(fd,
+ "#endif //LTT_TRACE\n");
+ fprintf(fd, "#endif //!LTT_TRACE_FAST\n\n");
+
+ return 0;
}
+/* print_event_logging_function_user_fast
+ * Print the logging function of an event for userspace tracing. This is the
+ * core of genevent */
+int print_event_logging_function_user_fast(char *basename, facility_t *fac,
+ event_t *event, FILE *fd)
+{
+ char *attrib;
-/*****************************************************************************
- *Function name
- * generateEnumDefinition: generate enum definition if it exists
- *Input Params
- * fp : file to be written to
- * fHead : enum type
- ****************************************************************************/
-void generateEnumDefinition(FILE * fp, type_descriptor * type){
- int pos;
+ fprintf(fd, "#ifdef LTT_TRACE_FAST\n");
+
+ if(event->no_instrument_function) {
+ attrib = "__attribute__((no_instrument_function)) ";
+ } else {
+ attrib = "";
+ }
+ fprintf(fd, "static inline %sint trace_%s(\n",attrib, basename);
+
+ int has_argument = 0;
+ int has_type_fixed = 0;
+
+ for(unsigned int j = 0; j < event->fields.position; j++) {
+ /* For each field, print the function argument */
+ field_t *f = (field_t*)event->fields.array[j];
+ type_descriptor_t *t = f->type;
+ if(has_argument) {
+ fprintf(fd, ",");
+ fprintf(fd, "\n");
+ }
+ if(print_arg(t, fd, 2, basename, f->name)) return 1;
+ has_argument = 1;
+ }
+ if(!has_argument) {
+ print_tabs(2, fd);
+ fprintf(fd, "void");
+ }
+ fprintf(fd,")\n");
+ fprintf(fd,
+ "#ifndef LTT_TRACE\n");
+ fprintf(fd, "{\n");
+ fprintf(fd, "}\n");
+ fprintf(fd,"#else\n");
+ fprintf(fd, "{\n");
+ /* Print the function variables */
+ print_tabs(1, fd);
+ fprintf(fd, "unsigned int index;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "struct ltt_trace_info *trace = thread_trace_info;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "struct ltt_buf *ltt_buf;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "char *buffer = NULL;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t real_to_base = 0; /* The buffer is allocated on arch_size alignment */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t *to_base = &real_to_base;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t real_to = 0;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t *to = &real_to;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t real_len = 0;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t *len = &real_len;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t reserve_size;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "size_t slot_size;\n");
+ print_tabs(1, fd);
+
+ if(event->fields.position > 0) {
+ for(unsigned int i=0;i<event->fields.position;i++){
+ /* Search for at least one child with fixed size. It means
+ * we need local variables.*/
+ field_t *field = (field_t*)(event->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ has_type_fixed = has_type_local(type);
+ if(has_type_fixed) break;
+ }
+
+ if(has_type_fixed) {
+ fprintf(fd, "size_t align;\n");
+ print_tabs(1, fd);
+ }
+
+ fprintf(fd, "const char *real_from;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "const char **from = &real_from;\n");
+ print_tabs(1, fd);
+ }
+ fprintf(fd, "uint64_t tsc;\n");
+ print_tabs(1, fd);
+
+ print_tabs(1, fd);
+ fprintf(fd, "if (!trace) {\n");
+ print_tabs(2, fd);
+ fprintf(fd, "ltt_thread_init();\n");
+ print_tabs(2, fd);
+ fprintf(fd, "trace = thread_trace_info;\n");
+ print_tabs(1, fd);
+ fprintf(fd, "}\n\n");
+ fprintf(fd, "\n");
+
+ /* Calculate event variable len + event data alignment offset.
+ * Assume that the padding for alignment starts at a void*
+ * address.
+ * This excludes the header size and alignment. */
+
+ print_tabs(1, fd);
+ fprintf(fd, "/* For each field, calculate the field size. */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "/* size = *to_base + *to + *len */\n");
+ print_tabs(1, fd);
+ fprintf(fd, "/* Assume that the padding for alignment starts at a\n");
+ print_tabs(1, fd);
+ fprintf(fd, " * sizeof(void *) address. */\n");
+ fprintf(fd, "\n");
+
+ for(unsigned int i=0;i<event->fields.position;i++){
+ field_t *field = (field_t*)(event->fields.array[i]);
+ type_descriptor_t *type = field->type;
+ /* Set from */
+ print_tabs(1, fd);
+ switch(type->type) {
+ case SEQUENCE:
+ case UNION:
+ case ARRAY:
+ case STRUCT:
+ case STRING:
+ fprintf(fd, "*from = (const char*)lttng_param_%s;\n", field->name);
+ break;
+ default:
+ fprintf(fd, "*from = (const char*)<tng_param_%s;\n", field->name);
+ break;
+ }
+
+ if(print_type_write(type,
+ fd, 1, basename, field->name, "lttng_param_", 0)) return 1;
+ fprintf(fd, "\n");
+ }
+ print_tabs(1, fd);
+ fprintf(fd, "reserve_size = *to_base + *to + *len;\n");
+
+ print_tabs(1, fd);
+ fprintf(fd, "trace->nesting++;\n");
+
+ /* Get facility index */
+
+ print_tabs(1, fd);
+ fprintf(fd,
+ "index = ltt_get_index_from_facility(ltt_facility_%s_%X,\n"\
+ "\t\t\t\t\t\tevent_%s_%s);\n",
+ fac->name, fac->checksum, fac->name, event->name);
+ fprintf(fd,"\n");
+
+
+ print_tabs(1, fd);
+ fprintf(fd, "{\n");
+
+ if(event->per_trace) {
+ print_tabs(2, fd);
+ fprintf(fd, "if (dest_trace != trace) continue;\n\n");
+ }
+
+ print_tabs(2, fd);
+ fprintf(fd, "ltt_buf = ltt_get_channel_from_index(trace, index);\n");
+ print_tabs(2, fd);
+
+
+ /* Relay reserve */
+ /* If error, increment event lost counter (done by ltt_reserve_slot) and
+ * return */
+ print_tabs(2, fd);
+ fprintf(fd, "slot_size = 0;\n");
+ print_tabs(2, fd);
+ fprintf(fd, "buffer = ltt_reserve_slot(trace, ltt_buf,\n");
+ print_tabs(3, fd);
+ fprintf(fd, "reserve_size, &slot_size, &tsc);\n");
+ /* If error, return */
+ print_tabs(2, fd);
+ fprintf(fd, "if (!buffer)\n");
+ print_tabs(3, fd);
+ fprintf(fd, "goto end; /* buffer full */\n\n");
+ //print_tabs(2, fd);
+ // for DEBUG only
+ // fprintf(fd, "goto commit; /* DEBUG : never actually write. */\n\n");
+ print_tabs(2, fd);
+ fprintf(fd, "*to_base = *to = *len = 0;\n");
+ fprintf(fd, "\n");
+
+ /* Write event header */
+ print_tabs(2, fd);
+ fprintf(fd, "buffer = ltt_write_event_header(trace, ltt_buf, buffer,\n");
+ print_tabs(3, fd);
+ fprintf(fd, "ltt_facility_%s_%X, event_%s_%s,\n", fac->name, fac->checksum,
+ fac->name, event->name);
+ print_tabs(3, fd);
+ fprintf(fd, "reserve_size, tsc);\n");
+
+ /* write data. */
+
+ for(unsigned int i=0;i<event->fields.position;i++){
+ field_t *field = (field_t*)(event->fields.array[i]);
+ type_descriptor_t *type = field->type;
+
+ /* Set from */
+ print_tabs(2, fd);
+ switch(type->type) {
+ case SEQUENCE:
+ case UNION:
+ case ARRAY:
+ case STRUCT:
+ case STRING:
+ fprintf(fd, "*from = (const char*)lttng_param_%s;\n", field->name);
+ break;
+ default:
+ fprintf(fd, "*from = (const char*)<tng_param_%s;\n", field->name);
+ break;
+ }
+
+
+ if(print_type_write(type,
+ fd, 2, basename, field->name, "lttng_param_", 0)) return 1;
+ fprintf(fd, "\n");
+
+ /* Don't forget to flush pending memcpy */
+ print_tabs(2, fd);
+ fprintf(fd, "/* Flush pending memcpy */\n");
+ print_tabs(2, fd);
+ fprintf(fd, "if (*len != 0) {\n");
+ print_tabs(3, fd);
+ fprintf(fd, "memcpy(buffer+*to_base+*to, *from, *len);\n");
+ print_tabs(3, fd);
+ fprintf(fd, "*to += *len;\n");
+ //print_tabs(3, fd);
+ //fprintf(fd, "from += len;\n");
+ print_tabs(3, fd);
+ fprintf(fd, "*len = 0;\n");
+ print_tabs(2, fd);
+ fprintf(fd, "}\n");
+ fprintf(fd, "\n");
+ }
+
+
+ /* commit */
+ // for DEBUG only.
+ //fprintf(fd, "commit:\n"); /* DEBUG! */
+ print_tabs(2, fd);
+ fprintf(fd, "ltt_commit_slot(ltt_buf, buffer, slot_size);\n\n");
+
+ fprintf(fd, "}\n\n");
+
+ fprintf(fd, "end:\n");
+ /* Release locks */
+ print_tabs(1, fd);
+ fprintf(fd, "trace->nesting--;\n");
- if(type->already_printed) return;
-
- fprintf(fp,"enum {\n");
- for(pos = 0; pos < type->labels.position; pos++){
- fprintf(fp,"\tLTT_ENUM_%s", type->labels.array[pos]);
- if (pos != type->labels.position - 1) fprintf(fp,",");
- if(type->labels_description.array[pos] != NULL)
- fprintf(fp,"\t/* %s */\n",type->labels_description.array[pos]);
- else
- fprintf(fp,"\n");
- }
- fprintf(fp,"};\n\n\n");
- type->already_printed = 1;
+ fprintf(fd, "}\n");
+ fprintf(fd,
+ "#endif //LTT_TRACE\n");
+ fprintf(fd, "#endif //LTT_TRACE_FAST\n");
+
+ return 0;
}
-/*****************************************************************************
- *Function name
- * generateStrucTFunc: output structure and function to .h file
- *Input Params
- * fp : file to be written to
- * facName : name of facility
- ****************************************************************************/
-void generateStructFunc(FILE * fp, char * facName, unsigned long checksum){
- event * ev;
- field * fld;
- type_descriptor * td;
- int pos, pos1;
- int hasStrSeq, flag, structCount, seqCount,strCount, whichTypeFirst=0;
-
- for(pos = 0; pos < fac->events.position; pos++){
- ev = (event *) fac->events.array[pos];
- //yxx if(ev->nested)continue;
- fprintf(fp,"/**** structure and trace function for event: %s ****/\n\n",
- ev->name);
- //if(ev->type == 0){ // event without type
- // fprintf(fp,"static inline void trace_%s_%s(void){\n",facName,ev->name);
- // fprintf(fp,"\tltt_log_event(ltt_facility_%s_%X, event_%s, 0, NULL);\n",
- // facName,checksum,ev->name);
- // fprintf(fp,"};\n\n\n");
- // continue;
- //}
-
- //if fields contain enum, print out enum definition
- //MD : fixed in generateEnumDefinition to do not print the same enum
- //twice.
- if(ev->type != 0)
- for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){
- fld = (field *)ev->type->fields.array[pos1];
- if(fld->type->type == ENUM) generateEnumDefinition(fp, fld->type);
- }
-
- //default: no string, array or sequence in the event
- hasStrSeq = 0;
- whichTypeFirst = 0;
- structCount = 0;
-
- //structure for kernel
- if(ev->type != 0)
- printStruct(fp, ev->type->fields.position, ev->type->fields.array,
- ev->name, facName, &whichTypeFirst, &hasStrSeq, &structCount,
- ev->type);
-
-
- //trace function : function name and parameters : stub function.
- seqCount = 0;
- strCount = 0;
- fprintf(fp, "#ifndef CONFIG_LTT\n");
- fprintf(fp,"static inline void trace_%s_%s(",facName,ev->name);
- if(ev->type == 0)
- fprintf(fp, "void");
- else
- for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){
- fld = (field *)ev->type->fields.array[pos1];
- td = fld->type;
- if(td->type == ARRAY ){
- fprintf(fp,"%s * %s",getTypeStr(td), fld->name);
- }else if(td->type == STRING){
- fprintf(fp,"short int strlength_%d, %s * %s",
- ++strCount, getTypeStr(td), fld->name);
- }else if(td->type == SEQUENCE){
- fprintf(fp,"%s seqlength_%d, %s * %s",
- uintOutputTypes[td->size], ++seqCount,getTypeStr(td), fld->name);
- }else fprintf(fp,"%s %s",getTypeStr(td), fld->name);
- if(pos1 != ev->type->fields.position - 1) fprintf(fp,", ");
- }
- fprintf(fp,")\n{\n");
- fprintf(fp,"}\n");
- fprintf(fp,"#else\n");
-
- //trace function : function name and parameters
- seqCount = 0;
- strCount = 0;
- fprintf(fp,"static inline void trace_%s_%s(",facName,ev->name);
- if(ev->type == 0)
- fprintf(fp, "void");
- else
- for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){
- fld = (field *)ev->type->fields.array[pos1];
- td = fld->type;
- if(td->type == ARRAY ){
- fprintf(fp,"%s * %s",getTypeStr(td), fld->name);
- }else if(td->type == STRING){
- fprintf(fp,"short int strlength_%d, %s * %s",
- ++strCount, getTypeStr(td), fld->name);
- }else if(td->type == SEQUENCE){
- fprintf(fp,"%s seqlength_%d, %s * %s",
- uintOutputTypes[td->size], ++seqCount,getTypeStr(td), fld->name);
- }else fprintf(fp,"%s %s",getTypeStr(td), fld->name);
- if(pos1 != ev->type->fields.position - 1) fprintf(fp,", ");
- }
- fprintf(fp,")\n{\n");
-
-
-
- //allocate buffer
- // MD no more need. fprintf(fp,"\tchar buff[buflength];\n");
- // write directly to the channel
- fprintf(fp, "\tunsigned int index;\n");
- fprintf(fp, "\tstruct ltt_channel_struct *channel;\n");
- fprintf(fp, "\tstruct ltt_trace_struct *trace;\n");
- fprintf(fp, "\tunsigned long _flags;\n");
- fprintf(fp, "\tvoid *buff;\n");
- fprintf(fp, "\tvoid *old_address;\n");
- fprintf(fp, "\tunsigned int header_length;\n");
- fprintf(fp, "\tunsigned int event_length;\n"); // total size (incl hdr)
- fprintf(fp, "\tunsigned int length;\n"); // Size of the event var data.
- fprintf(fp, "\tunsigned char _offset;\n");
- fprintf(fp, "\tstruct rchan_buf *buf;\n");
- fprintf(fp, "\tstruct timeval delta;\n");
- fprintf(fp, "\tu64 tsc;\n");
-
- if(ev->type != 0)
- fprintf(fp, "\tstruct %s_%s_1* __1;\n\n", ev->name, facName);
-
- /* Warning : this is done prior to taking locks :
- * setting this value must be done at the end of the trace activation.
- * (we don't care for trace removal, as the list of traces is protected : it
- * just won't iterate on any trace). */
- fprintf(fp,
- "\tif(ltt_traces.num_active_traces == 0) return;\n\n");
-
- fprintf(fp, "\t/* Disable interrupts. */\n");
- fprintf(fp, "\tlocal_irq_save(_flags);\n");
- fprintf(fp, "\tpreempt_disable();\n\n");
-
- fprintf(fp, "\tltt_nesting[smp_processor_id()]++;\n");
- fprintf(fp, "\tbarrier();\n");
- fprintf(fp, "\tif(ltt_nesting[smp_processor_id()] > 1) goto unlock;\n");
- fprintf(fp, "\tspin_lock(<t_traces.locks[smp_processor_id()]);\n\n");
+
+
+
+
+
+/* ltt-facility-name.h : main logging header.
+ * log_header */
+
+void print_log_header_head(facility_t *fac, FILE *fd)
+{
+ fprintf(fd, "#ifndef _LTT_FACILITY_%s_H_\n", fac->capname);
+ fprintf(fd, "#define _LTT_FACILITY_%s_H_\n\n", fac->capname);
+ fprintf(fd, "#include <linux/types.h>\n");
+ if(!fac->arch)
+ fprintf(fd, "#include <ltt/ltt-facility-id-%s.h>\n", fac->name);
+ else
+ fprintf(fd, "#include <ltt/ltt-facility-id-%s_%s.h>\n",
+ fac->name,
+ fac->arch);
+ fprintf(fd, "#include <ltt/ltt-tracer.h>\n");
+ fprintf(fd, "\n");
+}
+
+/* ltt-facility-name.h : main logging header.
+ * log_header */
+
+void print_log_header_head_user(facility_t *fac, FILE *fd)
+{
+ fprintf(fd, "#ifndef _LTT_FACILITY_%s_H_\n", fac->capname);
+ fprintf(fd, "#define _LTT_FACILITY_%s_H_\n\n", fac->capname);
+ fprintf(fd, "#include <sys/types.h>\n");
+ if(!fac->arch)
+ fprintf(fd, "#include <ltt/ltt-facility-id-%s.h>\n", fac->name);
+ else
+ fprintf(fd, "#include <asm/ltt/ltt-facility-id-%s_%s.h>\n",
+ fac->name,
+ fac->arch);
+ fprintf(fd, "#include <ltt/ltt-usertrace.h>\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "#ifdef __cplusplus\n");
+ fprintf(fd, "extern \"C\" {\n");
+ fprintf(fd, "#endif\n");
+ fprintf(fd, "\n");
+}
+
+
+int print_log_header_types(facility_t *fac, FILE *fd)
+{
+ sequence_t *types = &fac->named_types.values;
+ fprintf(fd, "/* Named types */\n");
+ fprintf(fd, "\n");
+
+ for(unsigned int i = 0; i < types->position; i++) {
+ /* For each named type, print the definition */
+ if(print_type_declaration(types->array[i], fd,
+ 0, "", "")) return 1;
+ /* Print also the align function */
+ if(((type_descriptor_t*)types->array[i])->fac->align)
+ if(print_type_alignment_fct(types->array[i], fd,
+ 0, "", "")) return 1;
+ /* Print also the write function */
+ if(print_type_write_fct(types->array[i], fd,
+ 0, "", "")) return 1;
+ }
+ return 0;
+}
+
+int print_log_header_events(facility_t *fac, FILE *fd)
+{
+ sequence_t *events = &fac->events;
+ char basename[PATH_MAX];
+ unsigned int facname_len;
+
+ strncpy(basename, fac->name, PATH_MAX);
+ facname_len = strlen(basename);
+ strncat(basename, "_", PATH_MAX-facname_len);
+ facname_len = strlen(basename);
+
+ for(unsigned int i = 0; i < events->position; i++) {
+ event_t *event = (event_t*)events->array[i];
+ strncpy(&basename[facname_len], event->name, PATH_MAX-facname_len);
- fprintf(fp,
- "\tindex = ltt_get_index_from_facility(ltt_facility_%s_%X,\n"\
- "\t\t\t\tevent_%s);\n",
- facName, checksum, ev->name);
- fprintf(fp,"\n");
-
- /* For each trace */
- fprintf(fp, "\tlist_for_each_entry(trace, <t_traces.head, list) {\n");
- fprintf(fp, "\t\tif(!trace->active) continue;\n\n");
-
- //length of buffer : length of all structures
- // if(ev->type == 0) fprintf(fp, "0");
-
- fprintf(fp, "\t\tchannel = ltt_get_channel_from_index(trace, index);\n");
- fprintf(fp, "\t\tbuf = channel->rchan->buf[smp_processor_id()];\n");
- fprintf(fp, "\n");
- /* Warning : not atomic reservation : event size depends on the current
- * address for alignment */
- /* NOTE : using cmpxchg in reserve with repeat for atomicity */
- // Replaces _offset
- fprintf(fp, "\t\tdo {\n");
- fprintf(fp, "\t\t\told_address = buf->data + buf->offset;\n");
- fprintf(fp, "\t\t\tchar *ptr = (char*)old_address;\n");
-
-
- fprintf(fp, "\t\t\theader_length = ltt_get_event_header_data(trace, "
- "channel,\n"
- "\t\t\t\t\t\t\t\t\t\told_address, &_offset, &delta, &tsc);\n");
-
- fprintf(fp, "\t\t\tptr += _offset + header_length;\n");
-
- for(pos1=0;pos1<structCount;pos1++){
-
- if(ev->type->alignment > 1) {
- fprintf(fp,"\t\t\tptr += (%u - ((unsigned int)ptr&(%u-1)))&(%u-1) ;\n",
- ev->type->alignment, ev->type->alignment, ev->type->alignment);
- }
- fprintf(fp,"\t\t\tptr += sizeof(struct %s_%s_%d);\n",ev->name,
- facName,pos1+1);
-// if(pos1 != structCount-1) fprintf(fp," + ");
- }
-
- //length of buffer : length of all arrays, sequences and strings
- seqCount = 0;
- strCount = 0;
- flag = 0;
- if(ev->type != 0)
- for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){
- fld = (field *)ev->type->fields.array[pos1];
- td = fld->type;
- if(td->type == SEQUENCE || td->type==STRING || td->type==ARRAY){
- if(td->type == SEQUENCE) {
- if(td->alignment > 1) {
- fprintf(fp,"\t\t\tptr += (%u - ((unsigned int)ptr&(%u-1)))&(%u-1)) ;\n",
- td->alignment, td->alignment, td->alignment);
- }
- fprintf(fp,
- "\t\t\tptr += sizeof(%s) + (sizeof(%s) * seqlength_%d);\n",
- uintOutputTypes[td->size], getTypeStr(td), ++seqCount);
- } else if(td->type==STRING) {
- if(td->alignment > 1) {
- fprintf(fp,"\t\t\tptr += (%u - ((unsigned int)ptr&(%u-1)))&(%u-1)) ;\n",
- td->alignment, td->alignment, td->alignment);
- }
- fprintf(fp,"ptr += strlength_%d + 1;\n",
- ++strCount);
- }
- else if(td->type==ARRAY) {
- if(td->alignment > 1) {
- fprintf(fp,"\t\t\tptr += (%u - ((unsigned int)ptr&(%u-1)))&(%u-1);\n",
- td->alignment, td->alignment, td->alignment);
- }
- fprintf(fp,"\t\t\tptr += sizeof(%s) * %d;\n",
- getTypeStr(td),td->size);
- if(structCount == 0) flag = 1;
- }
- }
+ /* For each event, print structure, and then logging function */
+ fprintf(fd, "/* Event %s structures */\n",
+ event->name);
+ for(unsigned int j = 0; j < event->fields.position; j++) {
+ /* For each unnamed type, print the definition */
+ field_t *f = (field_t*)event->fields.array[j];
+ type_descriptor_t *t = f->type;
+ if(t->type_name == NULL) {
+ if((print_type_declaration(t, fd, 0, basename, f->name))) return 1;
+ /* Print also the align function */
+ if(fac->align) {
+ if((print_type_alignment_fct(t, fd, 0, basename, f->name))) return 1;
+ }
+ /* Print also the write function */
+ if((print_type_write_fct(t, fd, 0, basename, f->name))) return 1;
}
- fprintf(fp,";\n");
+ }
- fprintf(fp, "\t\t\tevent_length = (unsigned long)ptr -"
- "(unsigned long)old_address;\n");
+ fprintf(fd, "\n");
- fprintf(fp, "\t\t\tbuff = relay_reserve(channel->rchan, event_length, "
- "old_address);\n");
- fprintf(fp, "\n");
- fprintf(fp, "\t\t} while(PTR_ERR(buff) == -EAGAIN);\n");
- fprintf(fp, "\n");
+ fprintf(fd, "/* Event %s logging function */\n",
+ event->name);
+
+ if(!fac->user) {
+ if(print_event_logging_function(basename, fac, event, fd)) return 1;
+ } else {
+ if(print_event_logging_function_user_generic(basename, fac, event, fd))
+ return 1;
+ if(print_event_logging_function_user_fast(basename, fac, event, fd))
+ return 1;
+ }
-
- /* Reserve the channel */
- //fprintf(fp, "\t\tbuff = relay_reserve(channel->rchan, event_length);\n");
- fprintf(fp, "\t\tif(buff == NULL) {\n");
- fprintf(fp, "\t\t\t/* Buffer is full*/\n");
- fprintf(fp, "\t\t\t/* for debug BUG(); */\n"); // DEBUG!
- fprintf(fp, "\t\t\tchannel->events_lost[smp_processor_id()]++;\n");
- fprintf(fp, "\t\t\tbreak;\n"); /* don't commit a NULL reservation! */
- fprintf(fp, "\t\t}\n");
+ fprintf(fd, "\n");
+ }
+
+ return 0;
+}
+
+
+void print_log_header_tail(facility_t *fac, FILE *fd)
+{
+ fprintf(fd, "#endif //_LTT_FACILITY_%s_H_\n",fac->capname);
+}
+
+void print_log_header_tail_user(facility_t *fac, FILE *fd)
+{
+ fprintf(fd, "#ifdef __cplusplus\n");
+ fprintf(fd, "} /* end of extern \"C\" */\n");
+ fprintf(fd, "#endif\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "#endif //_LTT_FACILITY_%s_H_\n",fac->capname);
+}
+
+int print_log_header(facility_t *fac)
+{
+ char filename[PATH_MAX];
+ unsigned int filename_size = 0;
+ FILE *fd;
+ dprintf("%s\n", fac->name);
+
+ strcpy(filename, "ltt-facility-");
+ filename_size = strlen(filename);
+
+ strncat(filename, fac->name, PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+
+ if(fac->arch) {
+ strncat(filename, "_", PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+
+ strncat(filename, fac->arch, PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+ }
+
+ strncat(filename, ".h", PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+
+
+ fd = fopen(filename, "w");
+ if(fd == NULL) {
+ printf("Error opening file %s for writing : %s\n",
+ filename, strerror(errno));
+ return errno;
+ }
+
+ /* Print file head */
+ if(!fac->user)
+ print_log_header_head(fac, fd);
+ else
+ print_log_header_head_user(fac, fd);
+
+ /* print named types in declaration order */
+ if(print_log_header_types(fac, fd)) return 1;
+
+ /* Print events */
+ if(print_log_header_events(fac, fd)) return 1;
+
+ /* Print file tail */
+ if(!fac->user)
+ print_log_header_tail(fac, fd);
+ else
+ print_log_header_tail_user(fac, fd);
+
+
+
+ fclose(fd);
+
+ return 0;
+}
+
+
+/* ltt-facility-id-name.h : facility id.
+ * log_id_header */
+int print_id_header(facility_t *fac)
+{
+ char filename[PATH_MAX];
+ unsigned int filename_size = 0;
+ FILE *fd;
+ char basename[PATH_MAX];
+ char basename_len = 0;
+
+ dprintf("%s\n", fac->name);
+
+ strcpy(filename, "ltt-facility-id-");
+ filename_size = strlen(filename);
+
+ strncat(filename, fac->name, PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+
+ if(fac->arch) {
+ strncat(filename, "_", PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+
+ strncat(filename, fac->arch, PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+ }
+
+ strncat(filename, ".h", PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+
+
+ fd = fopen(filename, "w");
+ if(fd == NULL) {
+ printf("Error opening file %s for writing : %s\n",
+ filename, strerror(errno));
+ return errno;
+ }
+
+ if(!fac->user) {
+ fprintf(fd, "#ifndef _LTT_FACILITY_ID_%s_H_\n",fac->capname);
+ fprintf(fd, "#define _LTT_FACILITY_ID_%s_H_\n\n",fac->capname);
+ fprintf(fd, "#ifdef CONFIG_LTT\n");
+
+ fprintf(fd,"#include <linux/ltt-facilities.h>\n\n");
+
+ fprintf(fd,"/**** facility handle ****/\n\n");
+ fprintf(fd,"extern ltt_facility_t ltt_facility_%s_%X;\n",
+ fac->name, fac->checksum);
+ fprintf(fd,"extern ltt_facility_t ltt_facility_%s;\n\n\n",fac->name);
+
+ strncpy(basename, fac->name, PATH_MAX);
+ basename_len = strlen(basename);
+ strncat(basename, "_", PATH_MAX - basename_len);
+ basename_len++;
- /* DEBUG */
- //fprintf(fp, "\t\tif(resret == 1) {\n");
- //fprintf(fp, "printk(\"f%%lu e\%%u \", ltt_facility_%s_%X, event_%s);",
- // facName, checksum, ev->name);
- //fprintf(fp, "\t\t}\n");
-
- /* Write the header */
- fprintf(fp, "\n");
- fprintf(fp,"\t\tlength = event_length - header_length;\n");
- fprintf(fp, "\n");
- fprintf(fp, "\t\tltt_write_event_header(trace, channel, buff, \n"
- "\t\t\t\tltt_facility_%s_%X, event_%s, length, _offset,\n"
- "\t\t\t\t&delta, &tsc);\n",
- facName, checksum, ev->name);
- fprintf(fp, "\n");
-
- if(ev->type != 0)
- fprintf(fp, "\t\tchar *ptr = (char*)buff + _offset + header_length;\n");
-
-
- //declare a char pointer if needed : starts at the end of the structs.
- //if(structCount + hasStrSeq > 1) {
- // fprintf(fp,"\t\tchar * ptr = (char*)buff + header_length");
- // for(pos1=0;pos1<structCount;pos1++){
- // fprintf(fp," + sizeof(struct %s_%s_%d)",ev->name, facName,pos1+1);
- // }
- // if(structCount + hasStrSeq > 1) fprintf(fp,";\n");
- //}
-
- // Declare an alias pointer of the struct type to the beginning
- // of the reserved area, just after the event header.
- if(ev->type != 0) {
- if(ev->type->alignment > 1) {
- fprintf(fp,"\t\tptr+=(%u - ((unsigned int)ptr&(%u-1)))&(%u-1);\n",
- ev->type->alignment, ev->type->alignment, ev->type->alignment);
- }
-
- fprintf(fp, "\t\t__1 = (struct %s_%s_1 *)(ptr);\n",
- ev->name, facName);
- }
- //allocate memory for new struct and initialize it
- //if(whichTypeFirst == 1){ //struct first
- //for(pos1=0;pos1<structCount;pos1++){
- // if(pos1==0) fprintf(fp,
- // "\tstruct %s_%s_1 * __1 = (struct %s_%s_1 *)buff;\n",
- // ev->name, facName,ev->name, facName);
- //MD disabled else fprintf(fp,
- // "\tstruct %s_%s_%d __%d;\n",
- // ev->name, facName,pos1+1,pos1+1);
- //}
- //}else if(whichTypeFirst == 2){
- // for(pos1=0;pos1<structCount;pos1++)
- // fprintf(fp,"\tstruct %s_%s_%d __%d;\n",
- // ev->name, facName,pos1+1,pos1+1);
- //}
- fprintf(fp,"\n");
-
- if(structCount) fprintf(fp,"\t\t//initialize structs\n");
- //flag = 0;
- //structCount = 0;
- if(ev->type != 0)
- for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){
- fld = (field *)ev->type->fields.array[pos1];
- td = fld->type;
- if(td->type != ARRAY && td->type != SEQUENCE && td->type != STRING){
- //if(flag == 0){
- // flag = 1;
- // structCount++;
- // if(structCount > 1) fprintf(fp,"\n");
- //}
- fprintf(fp, "\t\t__1->%s = %s;\n", fld->name, fld->name );
-
- //if(structCount == 1 && whichTypeFirst == 1)
- // fprintf(fp, "\t__1->%s = %s;\n",fld->name,fld->name );
- //else
- // fprintf(fp, "\t__%d.%s = %s;\n",structCount ,fld->name,fld->name);
- }
- //else flag = 0;
- }
- if(structCount) fprintf(fp,"\n");
- //set ptr to the end of first struct if needed;
- //if(structCount + hasStrSeq > 1){
- // fprintf(fp,"\n\t\t//set ptr to the end of the first struct\n");
- // fprintf(fp,"\t\tptr += sizeof(struct %s_%s_1);\n\n",ev->name, facName);
- //}
-
- //copy struct, sequence and string to buffer
- seqCount = 0;
- strCount = 0;
- flag = 0;
- structCount = 0;
- if(ev->type != 0)
- for(pos1 = 0; pos1 < ev->type->fields.position; pos1++){
- fld = (field *)ev->type->fields.array[pos1];
- td = fld->type;
- // if(td->type != STRING && td->type != SEQUENCE && td->type != ARRAY){
- // if(flag == 0) structCount++;
- // flag++;
- // if((structCount > 1 || whichTypeFirst == 2) && flag == 1){
- // assert(0); // MD : disabled !
- // fprintf(fp,"\t//copy struct to buffer\n");
- // fprintf(fp,"\tmemcpy(ptr, &__%d, sizeof(struct %s_%s_%d));\n",
- // structCount, ev->name, facName,structCount);
- // fprintf(fp,"\tptr += sizeof(struct %s_%s_%d);\n\n",
- // ev->name, facName,structCount);
- // }
- // }
- //else if(td->type == SEQUENCE){
- if(td->type == SEQUENCE){
- flag = 0;
- fprintf(fp,"\t\t//copy sequence length and sequence to buffer\n");
-
- if(td->alignment > 1) {
- fprintf(fp,"\t\tptr+=(%u - ((unsigned int)ptr&(%u-1)))&(%u-1);\n",
- td->alignment, td->alignment, td->alignment);
- }
- fprintf(fp,"\t\t*ptr = seqlength_%d;\n",++seqCount);
- fprintf(fp,"\t\tptr += sizeof(%s);\n",uintOutputTypes[td->size]);
- if(td->alignment > 1) {
- fprintf(fp,"\t\tptr+=(%u - ((unsigned int)ptr&(%u-1)))&(%u-1);\n",
- td->alignment, td->alignment, td->alignment);
- }
- fprintf(fp,"\t\tmemcpy(ptr, %s, sizeof(%s) * seqlength_%d);\n",
- fld->name, getTypeStr(td), seqCount);
- fprintf(fp,"\t\tptr += sizeof(%s) * seqlength_%d;\n\n",
- getTypeStr(td), seqCount);
- }
- else if(td->type==STRING){
- flag = 0;
- fprintf(fp,"\t\t//copy string to buffer\n");
- fprintf(fp,"\t\tif(strlength_%d > 0){\n",++strCount);
- if(td->alignment > 1) {
- fprintf(fp,"\t\tptr+=(%u - ((unsigned int)ptr&(%u-1)))&(%u-1);\n",
- td->alignment, td->alignment, td->alignment);
- }
- fprintf(fp,"\t\t\tmemcpy(ptr, %s, strlength_%d + 1);\n",
- fld->name, strCount);
- fprintf(fp,"\t\t\tptr += strlength_%d + 1;\n",strCount);
- fprintf(fp,"\t\t}else{\n");
- fprintf(fp,"\t\t\t*ptr = '\\0';\n");
- fprintf(fp,"\t\t\tptr += 1;\n");
- fprintf(fp,"\t\t}\n\n");
- }else if(td->type==ARRAY){
- flag = 0;
- fprintf(fp,"\t//copy array to buffer\n");
- if(td->alignment > 1) {
- fprintf(fp,"\t\tptr+=(%u - ((unsigned int)ptr&(%u-1)))&(%u-1);\n",
- td->alignment, td->alignment, td->alignment);
- }
- fprintf(fp,"\tmemcpy(ptr, %s, sizeof(%s) * %d);\n",
- fld->name, getTypeStr(td), td->size);
- fprintf(fp,"\tptr += sizeof(%s) * %d;\n\n", getTypeStr(td), td->size);
- }
- }
- if(structCount + seqCount > 1) fprintf(fp,"\n");
-
- fprintf(fp,"\n");
- fprintf(fp, "\t\t/* Commit the work */\n");
- fprintf(fp, "\t\trelay_commit(channel->rchan->buf[smp_processor_id()],\n"
- "\t\t\t\tbuff, event_length);\n");
- fprintf(fp, "\t\tltt_write_commit_counter("
- "channel->rchan->buf[smp_processor_id()],\n"
- "\t\t\t\tbuff);\n");
-
- /* End of traces iteration */
- fprintf(fp, "\t}\n\n");
-
- fprintf(fp, "\n");
- // The generated preempt_check_resched is not dangerous because
- // interrupts are disabled.
- fprintf(fp, "\tspin_unlock(<t_traces.locks[smp_processor_id()]);\n");
-
- fprintf(fp, "unlock:\n");
- fprintf(fp, "\tbarrier();\n");
- fprintf(fp, "\tltt_nesting[smp_processor_id()]--;\n");
- fprintf(fp, "\t/* Re-enable interrupts */\n");
- fprintf(fp, "\tlocal_irq_restore(_flags);\n");
- fprintf(fp, "\tpreempt_enable_no_resched();\n");
- //fprintf(fp, "\tpreempt_check_resched();\n");
-
- //call trace function
- //fprintf(fp,"\n\t//call trace function\n");
- //fprintf(fp,"\tltt_log_event(ltt_facility_%s_%X, %s, bufLength, buff);\n",facName,checksum,ev->name);
- fprintf(fp,"}\n");
- fprintf(fp, "#endif //CONFIG_LTT\n\n");
- }
+ fprintf(fd,"/**** event index ****/\n\n");
+ fprintf(fd,"enum %s_event {\n",fac->name);
+
+ for(unsigned int i = 0; i < fac->events.position; i++) {
+ event_t *event = (event_t*)fac->events.array[i];
+ strncpy(basename+basename_len, event->name, PATH_MAX-basename_len);
+ print_tabs(1, fd);
+ fprintf(fd, "event_%s,\n", basename);
+ }
+ print_tabs(1, fd);
+ fprintf(fd, "facility_%s_num_events\n", fac->name);
+ fprintf(fd, "};\n");
+ fprintf(fd, "\n");
+
+
+ fprintf(fd, "#endif //CONFIG_LTT\n");
+ fprintf(fd, "#endif //_LTT_FACILITY_ID_%s_H_\n",fac->capname);
+ } else {
+ fprintf(fd, "#ifndef _LTT_FACILITY_ID_%s_H_\n",fac->capname);
+ fprintf(fd, "#define _LTT_FACILITY_ID_%s_H_\n\n",fac->capname);
+ fprintf(fd, "#ifdef LTT_TRACE\n");
+
+ fprintf(fd,"#include <ltt/ltt-usertrace.h>\n\n");
+
+ fprintf(fd,"/**** facility handle ****/\n\n");
+ fprintf(fd,"extern ltt_facility_t ltt_facility_%s_%X;\n",
+ fac->name, fac->checksum);
+ fprintf(fd,"extern ltt_facility_t ltt_facility_%s;\n\n\n",fac->name);
+
+ strncpy(basename, fac->name, PATH_MAX);
+ basename_len = strlen(basename);
+ strncat(basename, "_", PATH_MAX - basename_len);
+ basename_len++;
+
+ fprintf(fd,"/**** event index ****/\n\n");
+ fprintf(fd,"enum %s_event {\n",fac->name);
+
+ for(unsigned int i = 0; i < fac->events.position; i++) {
+ event_t *event = (event_t*)fac->events.array[i];
+ strncpy(basename+basename_len, event->name, PATH_MAX-basename_len);
+ print_tabs(1, fd);
+ fprintf(fd, "event_%s,\n", basename);
+ }
+ print_tabs(1, fd);
+ fprintf(fd, "facility_%s_num_events\n", fac->name);
+ fprintf(fd, "};\n");
+ fprintf(fd, "\n");
+
+
+ fprintf(fd, "#endif //LTT_TRACE\n");
+ fprintf(fd, "#endif //_LTT_FACILITY_ID_%s_H_\n",fac->capname);
+ }
+
+ fclose(fd);
+
+ return 0;
}
-/*****************************************************************************
- *Function name
- * getTypeStr : generate type string
- *Input Params
- * td : a type descriptor
- *Return Values
- * char * : type string
- ****************************************************************************/
-char * getTypeStr(type_descriptor * td){
- type_descriptor * t ;
-
- switch(td->type){
- case INT:
- return intOutputTypes[td->size];
- case UINT:
- return uintOutputTypes[td->size];
- case POINTER:
- return "void *";
- case LONG:
- return "long";
- case ULONG:
- return "unsigned long";
- case SIZE_T:
- return "size_t";
- case SSIZE_T:
- return "ssize_t";
- case OFF_T:
- return "off_t";
- case FLOAT:
- return floatOutputTypes[td->size];
- case STRING:
- return "const char";
- case ENUM:
- return uintOutputTypes[td->size];
- case ARRAY:
- case SEQUENCE:
- t = td->nested_type;
- switch(t->type){
- case INT:
- return intOutputTypes[t->size];
- case UINT:
- return uintOutputTypes[t->size];
- case POINTER:
- return "void *";
- case LONG:
- return "long";
- case ULONG:
- return "unsigned long";
- case SIZE_T:
- return "size_t";
- case SSIZE_T:
- return "ssize_t";
- case OFF_T:
- return "off_t";
- case FLOAT:
- return floatOutputTypes[t->size];
- case STRING:
- return "const char";
- case ENUM:
- return uintOutputTypes[t->size];
- default :
- error_callback(NULL,"Nested struct is not supportted");
- break;
- }
- break;
- case STRUCT: //for now we do not support nested struct
- error_callback(NULL,"Nested struct is not supportted");
- break;
- default:
- error_callback(NULL,"No type information");
- break;
- }
- return NULL;
+
+/* ltt-facility-loader-name.h : facility specific loader info.
+ * loader_header */
+int print_loader_header(facility_t *fac)
+{
+ char filename[PATH_MAX];
+ unsigned int filename_size = 0;
+ FILE *fd;
+ dprintf("%s\n", fac->name);
+
+ strcpy(filename, "ltt-facility-loader-");
+ filename_size = strlen(filename);
+
+ strncat(filename, fac->name, PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+
+ if(fac->arch) {
+ strncat(filename, "_", PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+
+ strncat(filename, fac->arch, PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+ }
+
+ strncat(filename, ".h", PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+
+
+ fd = fopen(filename, "w");
+ if(fd == NULL) {
+ printf("Error opening file %s for writing : %s\n",
+ filename, strerror(errno));
+ return errno;
+ }
+
+ fprintf(fd, "#ifndef _LTT_FACILITY_LOADER_%s_H_\n", fac->capname);
+ fprintf(fd, "#define _LTT_FACILITY_LOADER_%s_H_\n\n", fac->capname);
+ fprintf(fd, "#ifdef CONFIG_LTT\n\n");
+ fprintf(fd,"#include <linux/ltt-facilities.h>\n");
+ if(!fac->arch)
+ fprintf(fd,"#include <ltt/ltt-facility-id-%s.h>\n\n",
+ fac->name);
+ else
+ fprintf(fd,"#include <ltt/ltt-facility-id-%s_%s.h>\n\n",
+ fac->name,
+ fac->arch);
+ fprintf(fd,"ltt_facility_t\tltt_facility_%s;\n", fac->name);
+ fprintf(fd,"ltt_facility_t\tltt_facility_%s_%X;\n\n",
+ fac->name, fac->checksum);
+ fprintf(fd,"extern unsigned int ltt_get_channel_index_%s(u8 eID);\n\n",
+ fac->name);
+
+ fprintf(fd,"#define LTT_FACILITY_SYMBOL\t\tltt_facility_%s\n",
+ fac->name);
+ fprintf(fd,"#define LTT_FACILITY_CHECKSUM_SYMBOL\tltt_facility_%s_%X\n",
+ fac->name, fac->checksum);
+ fprintf(fd,"#define LTT_FACILITY_CHECKSUM\t\t0x%X\n", fac->checksum);
+ fprintf(fd,"#define LTT_FACILITY_NAME\t\t\"%s\"\n", fac->name);
+ fprintf(fd,"#define LTT_FACILITY_NUM_EVENTS\tfacility_%s_num_events\n\n",
+ fac->name);
+ fprintf(fd,"#define LTT_FACILITY_ALIGNMENT\t\t%u\n\n",
+ fac->align);
+ fprintf(fd,"#define LTT_FACILITY_SELECT\t\tltt_get_channel_index_%s\n\n",
+ fac->name);
+ fprintf(fd, "#endif //CONFIG_LTT\n\n");
+ fprintf(fd, "#endif //_LTT_FACILITY_LOADER_%s_H_\n", fac->capname);
+
+ fclose(fd);
+
+ return 0;
+}
+
+int print_loader_header_user(facility_t *fac)
+{
+ char filename[PATH_MAX];
+ unsigned int filename_size = 0;
+ FILE *fd;
+ dprintf("%s\n", fac->name);
+
+ strcpy(filename, "ltt-facility-loader-");
+ filename_size = strlen(filename);
+
+ strncat(filename, fac->name, PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+
+ if(fac->arch) {
+ strncat(filename, "_", PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+
+ strncat(filename, fac->arch, PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+ }
+
+ strncat(filename, ".h", PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+
+
+ fd = fopen(filename, "w");
+ if(fd == NULL) {
+ printf("Error opening file %s for writing : %s\n",
+ filename, strerror(errno));
+ return errno;
+ }
+
+ fprintf(fd, "#ifndef _LTT_FACILITY_LOADER_%s_H_\n", fac->capname);
+ fprintf(fd, "#define _LTT_FACILITY_LOADER_%s_H_\n\n", fac->capname);
+ fprintf(fd,"#include <ltt/ltt-usertrace.h>\n");
+ if(!fac->arch)
+ fprintf(fd,"#include <ltt/ltt-facility-id-%s.h>\n\n",
+ fac->name);
+ else
+ fprintf(fd,"#include <ltt/ltt-facility-id-%s_%s.h>\n\n",
+ fac->name,
+ fac->arch);
+ fprintf(fd,"ltt_facility_t\tltt_facility_%s;\n", fac->name);
+ fprintf(fd,"ltt_facility_t\tltt_facility_%s_%X;\n\n",
+ fac->name, fac->checksum);
+
+ fprintf(fd,"#define LTT_FACILITY_SYMBOL\t\t\t\t\t\t\tltt_facility_%s\n",
+ fac->name);
+ fprintf(fd,"#define LTT_FACILITY_CHECKSUM_SYMBOL\t\tltt_facility_%s_%X\n",
+ fac->name, fac->checksum);
+ fprintf(fd,"#define LTT_FACILITY_CHECKSUM\t\t\t\t\t\t0x%X\n", fac->checksum);
+ fprintf(fd,"#define LTT_FACILITY_NAME\t\t\t\t\t\t\t\t\"%s\"\n", fac->name);
+ fprintf(fd,"#define LTT_FACILITY_NUM_EVENTS\t\t\t\t\tfacility_%s_num_events\n\n",
+ fac->name);
+ fprintf(fd,"#define LTT_FACILITY_ALIGNMENT\t\t\t\t\t%u\n\n",
+ fac->align);
+ fprintf(fd, "#endif //_LTT_FACILITY_LOADER_%s_H_\n", fac->capname);
+
+ fclose(fd);
+
+ return 0;
+}
+
+
+
+/* ltt-facility-loader-name.c : generic facility loader
+ * loader_c */
+int print_loader_c(facility_t *fac)
+{
+ char filename[PATH_MAX];
+ unsigned int filename_size = 0;
+ FILE *fd;
+ dprintf("%s\n", fac->name);
+
+ strcpy(filename, "ltt-facility-loader-");
+ filename_size = strlen(filename);
+
+ strncat(filename, fac->name, PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+
+ if(fac->arch) {
+ strncat(filename, "_", PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+
+ strncat(filename, fac->arch, PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+ }
+
+ strncat(filename, ".c", PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+
+
+ fd = fopen(filename, "w");
+ if(fd == NULL) {
+ printf("Error opening file %s for writing : %s\n",
+ filename, strerror(errno));
+ return errno;
+ }
+
+ fprintf(fd, "/*\n");
+ if(!fac->arch)
+ fprintf(fd, " * ltt-facility-loader-%s.c\n", fac->name);
+ else
+ fprintf(fd, " * ltt-facility-loader-%s_%s.c\n", fac->name, fac->arch);
+ fprintf(fd, " *\n");
+ fprintf(fd, " * (C) Copyright 2005 - \n");
+ fprintf(fd, " * Mathieu Desnoyers (mathieu.desnoyers@polymtl.ca)\n");
+ fprintf(fd, " *\n");
+ fprintf(fd, " * Contains the LTT facility loader.\n");
+ fprintf(fd, " *\n");
+ fprintf(fd, " */\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "#include <linux/ltt-facilities.h>\n");
+ fprintf(fd, "#include <linux/module.h>\n");
+ fprintf(fd, "#include <linux/init.h>\n");
+ if(!fac->arch)
+ fprintf(fd, "#include \"ltt-facility-loader-%s.h\"\n", fac->name);
+ else
+ fprintf(fd, "#include \"ltt-facility-loader-%s_%s.h\"\n",
+ fac->name, fac->arch);
+ fprintf(fd, "\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "#ifdef CONFIG_LTT\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "EXPORT_SYMBOL(LTT_FACILITY_SYMBOL);\n");
+ fprintf(fd, "EXPORT_SYMBOL(LTT_FACILITY_CHECKSUM_SYMBOL);\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "static const char ltt_facility_name[] = LTT_FACILITY_NAME;\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "#define SYMBOL_STRING(sym) #sym\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "static struct ltt_facility facility = {\n");
+ fprintf(fd, "\t.name = ltt_facility_name,\n");
+ fprintf(fd, "\t.num_events = LTT_FACILITY_NUM_EVENTS,\n");
+ fprintf(fd, "\t.checksum = LTT_FACILITY_CHECKSUM,\n");
+ fprintf(fd, "\t.symbol = SYMBOL_STRING(LTT_FACILITY_SYMBOL),\n");
+ fprintf(fd, "\t.alignment = LTT_FACILITY_ALIGNMENT,\n");
+ fprintf(fd, "\t.select = LTT_FACILITY_SELECT,\n");
+ fprintf(fd, "};\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "static int __init facility_init(void)\n");
+ fprintf(fd, "{\n");
+ fprintf(fd, "\tprintk(KERN_INFO \"LTT : ltt-facility-%s init in kernel\\n\");\n", fac->name);
+ fprintf(fd, "\n");
+ fprintf(fd, "\tLTT_FACILITY_SYMBOL = ltt_facility_kernel_register(&facility);\n");
+ fprintf(fd, "\tLTT_FACILITY_CHECKSUM_SYMBOL = LTT_FACILITY_SYMBOL;\n");
+ fprintf(fd, "\t\n");
+ fprintf(fd, "\treturn LTT_FACILITY_SYMBOL;\n");
+ fprintf(fd, "}\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "#ifndef MODULE\n");
+ fprintf(fd, "__initcall(facility_init);\n");
+ fprintf(fd, "#else\n");
+ fprintf(fd, "module_init(facility_init);\n");
+ fprintf(fd, "static void __exit facility_exit(void)\n");
+ fprintf(fd, "{\n");
+ fprintf(fd, "\tint err;\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "\terr = ltt_facility_unregister(LTT_FACILITY_SYMBOL);\n");
+ fprintf(fd, "\tif (err != 0)\n");
+ fprintf(fd, "\t\tprintk(KERN_ERR \"LTT : Error in unregistering facility.\\n\");\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "}\n");
+ fprintf(fd, "module_exit(facility_exit)\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "MODULE_LICENSE(\"GPL\");\n");
+ fprintf(fd, "MODULE_AUTHOR(\"Mathieu Desnoyers\");\n");
+ fprintf(fd, "MODULE_DESCRIPTION(\"Linux Trace Toolkit Facility\");\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "#endif //MODULE\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "#endif //CONFIG_LTT\n");
+
+ fclose(fd);
+
+ return 0;
}
+int print_loader_c_user(facility_t *fac)
+{
+ char filename[PATH_MAX];
+ unsigned int filename_size = 0;
+ FILE *fd;
+ dprintf("%s\n", fac->name);
+
+ strcpy(filename, "ltt-facility-loader-");
+ filename_size = strlen(filename);
+
+ strncat(filename, fac->name, PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+
+ if(fac->arch) {
+ strncat(filename, "_", PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+
+ strncat(filename, fac->arch, PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+ }
+
+ strncat(filename, ".c", PATH_MAX - filename_size);
+ filename_size = strlen(filename);
+
+
+ fd = fopen(filename, "w");
+ if(fd == NULL) {
+ printf("Error opening file %s for writing : %s\n",
+ filename, strerror(errno));
+ return errno;
+ }
+
+ fprintf(fd, "/*\n");
+ if(!fac->arch)
+ fprintf(fd, " * ltt-facility-loader-%s.c\n", fac->name);
+ else
+ fprintf(fd, " * ltt-facility-loader-%s_%s.c\n", fac->name, fac->arch);
+ fprintf(fd, " *\n");
+ fprintf(fd, " * (C) Copyright 2005 - \n");
+ fprintf(fd, " * Mathieu Desnoyers (mathieu.desnoyers@polymtl.ca)\n");
+ fprintf(fd, " *\n");
+ fprintf(fd, " * Contains the LTT user space facility loader.\n");
+ fprintf(fd, " *\n");
+ fprintf(fd, " */\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "#define LTT_TRACE\n");
+ fprintf(fd, "#include <error.h>\n");
+ fprintf(fd, "#include <stdio.h>\n");
+ fprintf(fd, "#include <ltt/ltt-usertrace.h>\n");
+ if(!fac->arch)
+ fprintf(fd, "#include \"ltt-facility-loader-%s.h\"\n", fac->name);
+ else
+ fprintf(fd, "#include \"ltt-facility-loader-%s_%s.h\"\n",
+ fac->name, fac->arch);
+ fprintf(fd, "\n");
+ fprintf(fd, "static struct user_facility_info facility = {\n");
+ fprintf(fd, "\t.name = LTT_FACILITY_NAME,\n");
+ fprintf(fd, "\t.num_events = LTT_FACILITY_NUM_EVENTS,\n");
+ fprintf(fd, "#ifndef LTT_PACK\n");
+ fprintf(fd, "\t.alignment = LTT_FACILITY_ALIGNMENT?sizeof(void*):0,\n");
+ fprintf(fd, "#else\n");
+ fprintf(fd, "\t.alignment = 0,\n");
+ fprintf(fd, "#endif //LTT_PACK\n");
+ fprintf(fd, "\t.checksum = LTT_FACILITY_CHECKSUM,\n");
+ fprintf(fd, "\t.int_size = sizeof(int),\n");
+ fprintf(fd, "\t.long_size = sizeof(long),\n");
+ fprintf(fd, "\t.pointer_size = sizeof(void*),\n");
+ fprintf(fd, "\t.size_t_size = sizeof(size_t)\n");
+ fprintf(fd, "};\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "static void __attribute__((constructor)) __ltt_user_init(void)\n");
+ fprintf(fd, "{\n");
+ fprintf(fd, "\tint err;\n");
+ fprintf(fd, "#ifdef LTT_SHOW_DEBUG\n");
+ fprintf(fd, "\tprintf(\"LTT : ltt-facility-%s init in userspace\\n\");\n", fac->name);
+ fprintf(fd, "#endif //LTT_SHOW_DEBUG\n");
+ fprintf(fd, "\n");
+ fprintf(fd, "\terr = ltt_register_generic(<T_FACILITY_SYMBOL, &facility);\n");
+ fprintf(fd, "\tLTT_FACILITY_CHECKSUM_SYMBOL = LTT_FACILITY_SYMBOL;\n");
+ fprintf(fd, "\t\n");
+ fprintf(fd, "\tif (err) {\n");
+ fprintf(fd, "#ifdef LTT_SHOW_DEBUG\n");
+ fprintf(fd, "\t\tperror(\"Error in ltt_register_generic\");\n");
+ fprintf(fd, "#endif //LTT_SHOW_DEBUG\n");
+ fprintf(fd, "\t}\n");
+ fprintf(fd, "}\n");
+ fprintf(fd, "\n");
+
+ fclose(fd);
+
+ return 0;
+}
+
+
+
+/* open facility */
+/* code taken from ltt_facility_open in ltt/facility.c in lttv */
+
/*****************************************************************************
*Function name
- * generateLoaderfile: generate a facility loaded .h file
- *Input Params
- * fp : file to be written to
- * facName : name of facility
- * nbEvent : number of events in the facility
- * checksum : checksum for the facility
+ * ltt_facility_open : open facilities
+ *Input params
+ * pathname : the path name of the facility
+ *
+ * Open the facility corresponding to the right checksum.
+ *
+ *returns the facility on success, NULL on error.
****************************************************************************/
-void generateLoaderfile(FILE * fp, char * facName, int nbEvent, unsigned long checksum, char *capname){
- fprintf(fp, "#ifndef _LTT_FACILITY_LOADER_%s_H_\n",capname);
- fprintf(fp, "#define _LTT_FACILITY_LOADER_%s_H_\n\n",capname);
- fprintf(fp,"#include <linux/ltt-facilities.h>\n", facName, checksum);
- fprintf(fp,"ltt_facility_t\tltt_facility_%s;\n", facName, checksum);
- fprintf(fp,"ltt_facility_t\tltt_facility_%s_%X;\n\n", facName, checksum);
-
- fprintf(fp,"#define LTT_FACILITY_SYMBOL\t\t\t\t\t\t\tltt_facility_%s\n",
- facName);
- fprintf(fp,"#define LTT_FACILITY_CHECKSUM_SYMBOL\t\tltt_facility_%s_%X\n",
- facName, checksum);
- fprintf(fp,"#define LTT_FACILITY_CHECKSUM\t\t\t\t\t\t0x%X\n", checksum);
- fprintf(fp,"#define LTT_FACILITY_NAME\t\t\t\t\t\t\t\t\"%s\"\n", facName);
- fprintf(fp,"#define LTT_FACILITY_NUM_EVENTS\t\t\t\t\t%d\n\n", nbEvent);
- fprintf(fp, "#endif //_LTT_FACILITY_LOADER_%s_H_\n",capname);
+facility_t *ltt_facility_open(char * pathname)
+{
+ int ret = 0;
+ char *token;
+ parse_file_t in;
+ facility_t * fac = NULL;
+ char buffer[BUFFER_SIZE];
+ int generated = FALSE;
+
+ in.buffer = &(buffer[0]);
+ in.lineno = 0;
+ in.error = error_callback;
+ in.name = pathname;
+ in.unget = 0;
+
+ in.fp = fopen(in.name, "r");
+ if(in.fp == NULL) {
+ ret = 1;
+ goto open_error;
+ }
+
+ while(1){
+ token = getToken(&in);
+ if(in.type == ENDFILE) break;
+
+ if(generated) {
+ printf("More than one facility in the file. Only using the first one.\n");
+ break;
+ }
+
+ if(strcmp(token, "<")) in.error(&in,"not a facility file");
+ token = getName(&in);
+ if(strcmp(token, "?")) in.error(&in,"not a facility file");
+ token = getName(&in);
+ if(strcmp(token, "xml")) in.error(&in,"not a facility file");
+ token = getName(&in);
+ if(strcmp(token, "version")) in.error(&in,"not a facility file");
+ token = getName(&in);
+ if(strcmp(token, "=")) in.error(&in,"not a facility file");
+ token = getQuotedString(&in);
+ if(strcmp(token, "1.0")) in.error(&in,"not a facility file");
+ token = getName(&in);
+ if(strcmp(token, "?")) in.error(&in,"not a facility file");
+ token = getToken(&in);
+ if(strcmp(token, ">")) in.error(&in,"not a facility file");
+
+ token = getName(&in);
+ if(strcmp(token, "<")) in.error(&in,"not a facility file");
+ token = getName(&in);
+ if(strcmp("facility",token) == 0) {
+ fac = malloc(sizeof(facility_t));
+ fac->name = NULL;
+ fac->description = NULL;
+ sequence_init(&(fac->events));
+ table_init(&(fac->named_types));
+ sequence_init(&(fac->unnamed_types));
+
+ parseFacility(&in, fac);
+
+ //check if any namedType is not defined
+ checkNamedTypesImplemented(&fac->named_types);
+
+ generateChecksum(fac->name, &fac->checksum, &fac->events);
+
+ generated = TRUE;
+ }
+ else {
+ printf("facility token was expected in file %s\n", in.name);
+ ret = 1;
+ goto parse_error;
+ }
+ }
+
+ parse_error:
+ fclose(in.fp);
+open_error:
+
+ if(!generated) {
+ printf("Cannot find facility %s\n", pathname);
+ fac = NULL;
+ }
+
+ return fac;
+}
+
+/* Close the facility */
+void ltt_facility_close(facility_t *fac)
+{
+ free(fac->name);
+ free(fac->capname);
+ free(fac->description);
+ freeEvents(&fac->events);
+ sequence_dispose(&fac->events);
+ freeNamedType(&fac->named_types);
+ table_dispose(&fac->named_types);
+ freeTypes(&fac->unnamed_types);
+ sequence_dispose(&fac->unnamed_types);
+ free(fac);
}
-void generateCfile(FILE * fp, char * filefacname){
-
- fprintf(fp, "/*\n");
- fprintf(fp, " * ltt-facility-loader-%s.c\n", filefacname);
- fprintf(fp, " *\n");
- fprintf(fp, " * (C) Copyright 2005 - \n");
- fprintf(fp, " * Mathieu Desnoyers (mathieu.desnoyers@polymtl.ca)\n");
- fprintf(fp, " *\n");
- fprintf(fp, " * Contains the LTT facility loader.\n");
- fprintf(fp, " *\n");
- fprintf(fp, " */\n");
- fprintf(fp, "\n");
- fprintf(fp, "\n");
- fprintf(fp, "#include <linux/ltt-facilities.h>\n");
- fprintf(fp, "#include <linux/module.h>\n");
- fprintf(fp, "#include <linux/init.h>\n");
- fprintf(fp, "#include <linux/config.h>\n");
- fprintf(fp, "#include \"ltt-facility-loader-%s.h\"\n", filefacname);
- fprintf(fp, "\n");
- fprintf(fp, "\n");
- fprintf(fp, "#ifdef CONFIG_LTT\n");
- fprintf(fp, "\n");
- fprintf(fp, "EXPORT_SYMBOL(LTT_FACILITY_SYMBOL);\n");
- fprintf(fp, "EXPORT_SYMBOL(LTT_FACILITY_CHECKSUM_SYMBOL);\n");
- fprintf(fp, "\n");
- fprintf(fp, "static const char ltt_facility_name[] = LTT_FACILITY_NAME;\n");
- fprintf(fp, "\n");
- fprintf(fp, "#define SYMBOL_STRING(sym) #sym\n");
- fprintf(fp, "\n");
- fprintf(fp, "static struct ltt_facility facility = {\n");
- fprintf(fp, "\t.name = ltt_facility_name,\n");
- fprintf(fp, "\t.num_events = LTT_FACILITY_NUM_EVENTS,\n");
- fprintf(fp, "\t.checksum = LTT_FACILITY_CHECKSUM,\n");
- fprintf(fp, "\t.symbol = SYMBOL_STRING(LTT_FACILITY_SYMBOL)\n");
- fprintf(fp, "};\n");
- fprintf(fp, "\n");
- fprintf(fp, "#ifndef MODULE\n");
- fprintf(fp, "\n");
- fprintf(fp, "/* Built-in facility. */\n");
- fprintf(fp, "\n");
- fprintf(fp, "static int __init facility_init(void)\n");
- fprintf(fp, "{\n");
- fprintf(fp, "\tprintk(KERN_INFO \"LTT : ltt-facility-%s init in kernel\\n\");\n", filefacname);
- fprintf(fp, "\n");
- fprintf(fp, "\tLTT_FACILITY_SYMBOL = ltt_facility_builtin_register(&facility);\n");
- fprintf(fp, "\tLTT_FACILITY_CHECKSUM_SYMBOL = LTT_FACILITY_SYMBOL;\n");
- fprintf(fp, "\t\n");
- fprintf(fp, "\treturn LTT_FACILITY_SYMBOL;\n");
- fprintf(fp, "}\n");
- fprintf(fp, "__initcall(facility_init);\n");
- fprintf(fp, "\n");
- fprintf(fp, "\n");
- fprintf(fp, "\n");
- fprintf(fp, "#else \n");
- fprintf(fp, "\n");
- fprintf(fp, "/* Dynamic facility. */\n");
- fprintf(fp, "\n");
- fprintf(fp, "static int __init facility_init(void)\n");
- fprintf(fp, "{\n");
- fprintf(fp, "\tprintk(KERN_INFO \"LTT : ltt-facility-%s init dynamic\\n\");\n", filefacname);
- fprintf(fp, "\n");
- fprintf(fp, "\tLTT_FACILITY_SYMBOL = ltt_facility_dynamic_register(&facility);\n");
- fprintf(fp, "\tLTT_FACILITY_SYMBOL_CHECKSUM = LTT_FACILITY_SYMBOL;\n");
- fprintf(fp, "\n");
- fprintf(fp, "\treturn LTT_FACILITY_SYMBOL;\n");
- fprintf(fp, "}\n");
- fprintf(fp, "\n");
- fprintf(fp, "static void __exit facility_exit(void)\n");
- fprintf(fp, "{\n");
- fprintf(fp, "\tint err;\n");
- fprintf(fp, "\n");
- fprintf(fp, "\terr = ltt_facility_dynamic_unregister(LTT_FACILITY_SYMBOL);\n");
- fprintf(fp, "\tif(err != 0)\n");
- fprintf(fp, "\t\tprintk(KERN_ERR \"LTT : Error in unregistering facility.\\n\");\n");
- fprintf(fp, "\n");
- fprintf(fp, "}\n");
- fprintf(fp, "\n");
- fprintf(fp, "module_init(facility_init)\n");
- fprintf(fp, "module_exit(facility_exit)\n");
- fprintf(fp, "\n");
- fprintf(fp, "\n");
- fprintf(fp, "MODULE_LICENSE(\"GPL\");\n");
- fprintf(fp, "MODULE_AUTHOR(\"Mathieu Desnoyers\");\n");
- fprintf(fp, "MODULE_DESCRIPTION(\"Linux Trace Toolkit Facility\");\n");
- fprintf(fp, "\n");
- fprintf(fp, "#endif //MODULE\n");
- fprintf(fp, "\n");
- fprintf(fp, "#endif //CONFIG_LTT\n");
+
+/* Show help */
+void show_help(int argc, char ** argv)
+{
+ printf("Genevent help : \n");
+ printf("\n");
+ printf("Use %s name.xml\n", argv[0]);
+ printf("to create :\n");
+ printf("ltt-facility-name.h\n");
+ printf("ltt-facility-id-name.h\n");
+ printf("ltt-facility-loader-name.h\n");
+ printf("ltt-facility-loader-name.c\n");
+ printf("In the current directory.\n");
+ printf("\n");
+}
+
+/* Parse program arguments */
+/* Return values :
+ * 0 : continue program
+ * -1 : stop program, return 0
+ * > 0 : stop program, return value as exit.
+ */
+int check_args(int argc, char **argv)
+{
+ if(argc < 2) {
+ printf("Not enough arguments\n");
+ show_help(argc, argv);
+ return EINVAL;
+ }
+
+ if(strcmp(argv[1], "-h") == 0) {
+ show_help(argc, argv);
+ return -1;
+ }
+
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ int err = 0;
+ facility_t *fac;
+
+ err = check_args(argc, argv);
+ if(err > 0) return err;
+ else if(err < 0) return 0;
+
+ /* open the facility */
+ fac = ltt_facility_open(argv[1]);
+ if(fac == NULL) {
+ printf("Error opening file %s for reading : %s\n",
+ argv[1], strerror(errno));
+ return errno;
+ }
+
+ /* generate the output C files */
+
+
+ /* ltt-facility-name.h : main logging header.
+ * log_header */
+ err = print_log_header(fac);
+ if(err) return err;
+
+ /* ltt-facility-id-name.h : facility id.
+ * log_id_header */
+ err = print_id_header(fac);
+ if(err) return err;
+
+ /* ltt-facility-loader-name.h : facility specific loader info.
+ * loader_header */
+ if(!fac->user)
+ err = print_loader_header(fac);
+ else
+ err = print_loader_header_user(fac);
+ if(err) return err;
+
+ /* ltt-facility-loader-name.c : generic faciilty loader
+ * loader_c */
+ if(!fac->user)
+ err = print_loader_c(fac);
+ else
+ err = print_loader_c_user(fac);
+ if(err) return err;
+
+ /* close the facility */
+ ltt_facility_close(fac);
+
+ return 0;
}
projects / lttv.git / blobdiff