X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=genevent%2Fparser.c;h=7ac11e7ec8492fb683169fd5004c4cbd0fb2df18;hb=85cab54779d96bd370fd7f33575e6c504b8b9d34;hp=d998c81381b17672b4bf0caf8de0fd45d03abaa7;hpb=44cac8a9d536a16515bd298516fc7f7a97c34ecc;p=lttv.git diff --git a/genevent/parser.c b/genevent/parser.c index d998c813..7ac11e7e 100644 --- a/genevent/parser.c +++ b/genevent/parser.c @@ -1,16 +1,20 @@ + + + /* parser.c: Generate helper declarations and functions to trace events from an event description file. -Copyright (C) 2002, Xianxiu Yang -Copyright (C) 2002, Michel Dagenais -This program is free software; you can redistribute it and/or modify + Copyright (C) 2005, Mathieu Desnoyers + 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. + 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 + 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. @@ -19,9 +23,9 @@ This program is distributed in the hope that it will be useful, Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -/* This program reads the ".xml" event definitions input files +/* This program reads the ".xml" event definitions input files and constructs structure for each event. - + 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 @@ -29,33 +33,46 @@ This program is distributed in the hope that it will be useful, 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 + all types is maintained to facilitate the freeing of all type information when the processing of an ".xml" file is finished. */ -#include +#include #include #include #include -#include - +#include +#include +#include #include "parser.h" +char *intOutputTypes[] = { + "int8_t", "int16_t", "int32_t", "int64_t" }; + +char *uintOutputTypes[] = { + "uint8_t", "uint16_t", "uint32_t", "uint64_t" }; + +char *floatOutputTypes[] = { + "undef", "undef", "float", "double" }; + + + + /* helper function */ void strupper(char *string) { char *ptr = string; - + while(*ptr != '\0') { *ptr = toupper(*ptr); - ptr++; + ptr++; } } -int getSizeindex(int value) -{ +int getSizeindex(unsigned int value) +{ switch(value) { case 1: return 0; @@ -74,28 +91,39 @@ int getSizeindex(int value) /***************************************************************************** *Function name * getSize : translate from string to integer - *Input params + *Input params * in : input file handle - *Return values - * size + *Return values + * size *****************************************************************************/ -int getSize(parse_file *in) +unsigned long long int getSize(parse_file_t *in) { - char *token; + char *token, *token2; + unsigned long long int ret; token = getToken(in); - if(in->type == NUMBER) { - if(strcmp(token,"1") == 0) return 0; - else if(strcmp(token,"2") == 0) return 1; - else if(strcmp(token,"4") == 0) return 2; - else if(strcmp(token,"8") == 0) return 3; + + + if(in->type == QUOTEDSTRING) { + in->type = NUMBER; + token2 = token; + do { + if (!isdigit(*token2)) { + in->type = QUOTEDSTRING; + break; + } + } while (*(++token2) != '\0'); } - else if(in->type == NAME) { - if(strcmp(token,"short") == 0) return 4; - else if(strcmp(token,"medium") == 0) return 5; - else if(strcmp(token,"long") == 0) return 6; + + if(in->type == NUMBER) { + ret = strtoull(token, NULL, 0); + } else { + goto error; } + + return ret; +error: in->error(in,"incorrect size specification"); return -1; } @@ -105,25 +133,26 @@ int getSize(parse_file *in) * error_callback : print out error info *Input params * in : input file handle - * msg : message to be printed + * msg : message to be printed ****************************************************************************/ -void error_callback(parse_file *in, char *msg) +void error_callback(parse_file_t *in, char *msg) { if(in) printf("Error in file %s, line %d: %s\n", in->name, in->lineno, msg); else printf("%s\n",msg); + assert(0); exit(1); } /***************************************************************************** *Function name - * memAlloc : allocate memory - *Input params - * size : required memory size - *return value - * void * : pointer to allocate memory or NULL + * memAlloc : allocate memory + *Input params + * size : required memory size + *return value + * void * : pointer to allocate memory or NULL ****************************************************************************/ void * memAlloc(int size) @@ -132,18 +161,18 @@ void * memAlloc(int size) if(size == 0) return NULL; addr = malloc(size); if(!addr){ - printf("Failed to allocate memory"); + printf("Failed to allocate memory"); exit(1); } - return addr; + return addr; } /***************************************************************************** *Function name - * allocAndCopy : allocate memory and initialize it - *Input params - * str : string to be put in memory - *return value + * allocAndCopy : allocate memory and initialize it + *Input params + * str : string to be put in memory + *return value * char * : pointer to allocate memory or NULL ****************************************************************************/ @@ -158,90 +187,286 @@ char *allocAndCopy(char *str) /************************************************************************** * Function : - * getNameAttribute,getFormatAttribute,getSizeAttribute,getValueAttribute - * getValueStrAttribute + * getTypeAttributes * Description : * Read the attribute from the input file. * * Parameters : * in , input file handle. - * - * Return values : - * address of the attribute. + * t , the type descriptor to fill. * **************************************************************************/ -char * getNameAttribute(parse_file *in) +void getTypeAttributes(parse_file_t *in, type_descriptor_t *t, + sequence_t * unnamed_types, table_t * named_types) { - char * token, car; - token = getName(in); - if(strcmp("name",token))in->error(in,"name was expected"); - getEqual(in); - - car = seekNextChar(in); - if(car == EOF)in->error(in,"name was expected"); - else if(car == '\"')token = getQuotedString(in); - else token = getName(in); - return token; + char * token; + int car; + + t->fmt = NULL; + t->size = 0; + t->custom_write = 0; + t->network = 0; + + while(1) { + token = getToken(in); + if(strcmp("/",token) == 0 || strcmp(">",token) == 0){ + ungetToken(in); + break; + } + + if(!strcmp("format",token)) { + getEqual(in); + t->fmt = allocAndCopy(getQuotedString(in)); + // printf("%s - ",t->fmt); + //} else if(!strcmp("name",token)) { + // getEqual(in); + // car = seekNextChar(in); + // if(car == EOF) in->error(in,"name was expected"); + // else if(car == '\"') t->type_name = allocAndCopy(getQuotedString(in)); + // else t->type_name = allocAndCopy(getName(in)); + } else if(!strcmp("size",token)) { + getEqual(in); + t->size = getSize(in); + } else if(!strcmp("custom_write", token)) { + t->custom_write = 1; + } else if(!strcmp("byte_order",token)) { + getEqual(in); + car = seekNextChar(in); + if(car == EOF) in->error(in,"byte order was expected (network?)"); + else if(car == '\"') token = getQuotedString(in); + else token = getName(in); + if(!strcmp("network", token)) { + t->network = 1; + } + } else if(!strcmp("write",token)) { + getEqual(in); + car = seekNextChar(in); + if(car == EOF) in->error(in,"write type was expected (custom?)"); + else if(car == '\"') token = getQuotedString(in); + else token = getName(in); + if(!strcmp("custom", token)) { + t->custom_write = 1; + } + } + } } -char * getFormatAttribute(parse_file *in) +/************************************************************************** + * Function : + * getEventAttributes + * Description : + * Read the attribute from the input file. + * + * Parameters : + * in , input file handle. + * ev , the event to fill. + * + **************************************************************************/ + +void getEventAttributes(parse_file_t *in, event_t *ev) { char * token; + int car; + + ev->name = NULL; + ev->per_trace = 0; + ev->per_tracefile = 0; + ev->param_buffer = 0; + ev->no_instrument_function = 0; + ev->high_priority = 0; + ev->force = 0; + ev->compact_data = 0; + + while(1) { + token = getToken(in); + if(strcmp("/",token) == 0 || strcmp(">",token) == 0){ + ungetToken(in); + break; + } - //format is an option - token = getToken(in); - if(strcmp("/",token) == 0 || strcmp(">",token) == 0){ - ungetToken(in); - return NULL; + if(!strcmp("name",token)) { + getEqual(in); + car = seekNextChar(in); + if(car == EOF) in->error(in,"name was expected"); + else if(car == '\"') ev->name = allocAndCopy(getQuotedString(in)); + else ev->name = allocAndCopy(getName(in)); + } else if(!strcmp("scope", token)) { + getEqual(in); + car = seekNextChar(in); + if(car == EOF) in->error(in,"scope was expected"); + else if(car == '\"') token = getQuotedString(in); + else token = getName(in); + if(!strcmp(token, "trace")) ev->per_trace = 1; + else if(!strcmp(token, "tracefile")) ev->per_tracefile = 1; + } else if(!strcmp("param", token)) { + getEqual(in); + car = seekNextChar(in); + if(car == EOF) in->error(in,"parameter type was expected"); + else if(car == '\"') token = getQuotedString(in); + else token = getName(in); + if(!strcmp(token, "buffer")) ev->param_buffer = 1; + } else if(!strcmp("attribute", token)) { + getEqual(in); + car = seekNextChar(in); + if(car == EOF) in->error(in,"attribute was expected"); + else if(car == '\"') token = getQuotedString(in); + else token = getName(in); + if(!strcmp(token, "no_instrument_function")) + ev->no_instrument_function = 1; + else if(!strcmp(token, "high_priority")) + ev->high_priority = 1; + else if(!strcmp(token, "force")) + ev->force = 1; + else if(!strcmp(token, "compact_data")) + ev->compact_data = 1; + } } - - if(strcmp("format",token))in->error(in,"format was expected"); - getEqual(in); - token = getQuotedString(in); - return token; } -int getSizeAttribute(parse_file *in) +/************************************************************************** + * Function : + * getFacilityAttributes + * Description : + * Read the attribute from the input file. + * + * Parameters : + * in , input file handle. + * fac , the facility to fill. + * + **************************************************************************/ + +void getFacilityAttributes(parse_file_t *in, facility_t *fac) { char * token; - getName(in); - getEqual(in); + int car; + + fac->name = NULL; + fac->arch = NULL; + fac->align = 1; + fac->user = 0; + + while(1) { + token = getToken(in); + if(strcmp("/",token) == 0 || strcmp(">",token) == 0){ + ungetToken(in); + break; + } + + if(!strcmp("name",token)) { + getEqual(in); + car = seekNextChar(in); + if(car == EOF) in->error(in,"name was expected"); + else if(car == '\"') fac->name = allocAndCopy(getQuotedString(in)); + else fac->name = allocAndCopy(getName(in)); + if(!strncmp(fac->name, "user_", sizeof("user_")-1)) + fac->user = 1; + } else if(!strcmp("arch", token)) { + getEqual(in); + car = seekNextChar(in); + if(car == '\"') fac->arch = allocAndCopy(getQuotedString(in)); + else fac->arch = allocAndCopy(getName(in)); + } else if(!strcmp("align", token)) { + getEqual(in); + fac->align = getSize(in); + } - return getSize(in); + } } -int getValueAttribute(parse_file *in) +/************************************************************************** + * Function : + * getFieldAttributes + * Description : + * Read the attribute from the input file. + * + * Parameters : + * in , input file handle. + * f , the field to fill. + * + **************************************************************************/ + +void getFieldAttributes(parse_file_t *in, field_t *f) { char * token; - getName(in); - getEqual(in); - - return getNumber(in); + int car; + + f->name = NULL; + + while(1) { + token = getToken(in); + if(strcmp("/",token) == 0 || strcmp(">",token) == 0){ + ungetToken(in); + break; + } + + if(!strcmp("name",token)) { + getEqual(in); + car = seekNextChar(in); + if(car == EOF) in->error(in,"name was expected"); + else if(car == '\"') f->name = allocAndCopy(getQuotedString(in)); + else f->name = allocAndCopy(getName(in)); + } + } } -//for