--- /dev/null
+#!/bin/bash
+
+# Generate system call probe description macros from syscall metadata dump file.
+# The resulting header will be written in the headers subdirectory, in a file name
+# based on the name of the input file.
+#
+# example usage:
+#
+# lttng-syscalls-generate-headers.sh <type> <input_dir> <input_filename_in_dir> <bitness>
+# lttng-syscalls-generate-headers.sh integers 3.0.4 x86-64-syscalls 64
+# lttng-syscalls-generate-headers.sh pointers 3.0.4 x86-64-syscalls 64
+
+CLASS=$1
+VERSIONDIR=$2
+INPUTFILE=$3
+BITNESS=$4
+INPUT=${VERSIONDIR}/${INPUTFILE}
+HEADER=headers/${INPUTFILE}_${CLASS}.h
+
+if [ x"$VERSIONDIR" = x"" ]; then
+ echo "Error: Please specify input directory as second argument" >&2
+ exit 1
+fi
+
+if [ x"$INPUTFILE" = x"" ]; then
+ echo "Error: Please specify input file as third argument" >&2
+ exit 1
+fi
+
+if [ x"$BITNESS" != x"32" ] && [ x"$BITNESS" != x"64" ]; then
+ echo "Error: Please specify bitness as fourth argument (\"32\" or \"64\")" >&2
+ exit 1
+fi
+
+# Abort on error and undefined variable
+set -eu
+
+# Create temp files
+SRCFILE=$(mktemp)
+TMPFILE=$(mktemp)
+
+# Delete temp files on exit
+trap 'rm -f "${SRCFILE}" "${TMPFILE}"' EXIT
+
+cp "${INPUT}" "${SRCFILE}"
+
+## Cleanup the input file
+# Remove the dmesg timestamp if present
+perl -pi -e 's/^\[.*\] //g' "${SRCFILE}"
+# Remove the 'sys_' prefix from syscall names
+perl -pi -e 's/^syscall sys_([^ ]*)/syscall $1/g' "${SRCFILE}"
+# Remove the user attribute from arguments
+sed -i 's/ __attribute__((user))//g' "${SRCFILE}"
+
+#Filter
+
+if [ "$CLASS" = integers ]; then
+ #select integers and no-args.
+ CLASSCAP=INTEGERS
+ grep -v "\\*\|cap_user_header_t" "${SRCFILE}" > "${TMPFILE}"
+ mv "${TMPFILE}" "${SRCFILE}"
+elif [ "$CLASS" = pointers ]; then
+ #select system calls using pointers.
+ CLASSCAP=POINTERS
+ grep "\\*\|cap_#user_header_t" "${SRCFILE}" > "${TMPFILE}"
+ mv "${TMPFILE}" "${SRCFILE}"
+else
+ echo "Error: Please specify \"integers\" or \"pointers\" as first argument" >&2
+ exit 1
+fi
+
+
+echo "/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only) */
+
+/* THIS FILE IS AUTO-GENERATED. DO NOT EDIT */
+
+/* Generated from ${INPUTFILE} ${VERSIONDIR} */
+
+#ifndef CREATE_SYSCALL_TABLE
+
+#if !defined(_TRACE_SYSCALLS_${CLASSCAP}_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_SYSCALLS_${CLASSCAP}_H
+
+#include <lttng/tracepoint-event.h>
+#include <linux/syscalls.h>
+#include \"${INPUTFILE}_${CLASS}_override.h\"
+#include \"syscalls_${CLASS}_override.h\"
+" > "${HEADER}"
+
+if [ "$CLASS" = integers ]; then
+
+ NRARGS=0
+
+ # shellcheck disable=SC2129
+ printf \
+'#ifdef SC_ENTER
+SC_LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS(syscalls_noargs,
+ TP_FIELDS()
+)
+' >> "${HEADER}"
+
+ # shellcheck disable=SC2026
+ grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " "${SRCFILE}" | \
+ perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
+'types: \(([^)]*)\) '\
+'args: \(([^)]*)\)/'\
+'#ifndef OVERRIDE_'"${BITNESS}"'_$1\n'\
+'SC_LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(syscalls_noargs, $1)\n'\
+'#endif/g' >> "${HEADER}"
+
+ printf '#else /* #ifdef SC_ENTER */\n' >> "${HEADER}"
+
+ # shellcheck disable=SC2026
+ grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " "${SRCFILE}" | \
+ perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
+'types: \(([^)]*)\) '\
+'args: \(([^)]*)\)/'\
+'#ifndef OVERRIDE_'"${BITNESS}"'_$1\n'\
+'SC_LTTNG_TRACEPOINT_EVENT($1,\n'\
+' TP_PROTO(sc_exit(long ret)),\n'\
+' TP_ARGS(sc_exit(ret)),\n'\
+' TP_FIELDS(sc_exit(ctf_integer(long, ret, ret)))\n'\
+')\n'\
+'#endif/g' >> "${HEADER}"
+
+ printf '#endif /* else #ifdef SC_ENTER */\n' >> "${HEADER}"
+
+fi
+
+
+# types: 4
+# args 5
+
+NRARGS=1
+grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " "${SRCFILE}" | while read -r LINE; do
+ SC_NAME=$(echo "${LINE}" | perl -p -e 's/^syscall ([^ ]*) .*/$1/g')
+ ARG1=$(./lttng-get-syscall-inout.sh table-syscall-inout.txt "${SC_NAME}" 1)
+
+ echo Syscall: "${SC_NAME}" "${ARG1}"
+
+ # shellcheck disable=SC2026
+ echo "${LINE}" | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
+'types: \(([^)]*)\) '\
+'args: \(([^)]*)\)/'\
+'#ifndef OVERRIDE_'"${BITNESS}"'_$1\n'\
+'SC_LTTNG_TRACEPOINT_EVENT($1,\n'\
+' TP_PROTO(sc_exit(long ret,) $4 $5),\n'\
+' TP_ARGS(sc_exit(ret,) $5),\n'\
+' TP_FIELDS(sc_exit(ctf_integer(long, ret, ret)) '"${ARG1}"'(ctf_integer($4, $5, $5)))\n'\
+')\n'\
+'#endif/g' >> "${HEADER}"
+done
+
+# types: 4 5
+# args 6 7
+
+NRARGS=2
+grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " "${SRCFILE}" | while read -r LINE; do
+ SC_NAME=$(echo "${LINE}" | perl -p -e 's/^syscall ([^ ]*) .*/$1/g')
+ ARG1=$(./lttng-get-syscall-inout.sh table-syscall-inout.txt "${SC_NAME}" 1)
+ ARG2=$(./lttng-get-syscall-inout.sh table-syscall-inout.txt "${SC_NAME}" 2)
+
+ echo Syscall: "${SC_NAME}" "${ARG1}" "${ARG2}"
+
+ # shellcheck disable=SC2026
+ echo "${LINE}" | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
+'types: \(([^,]*), ([^)]*)\) '\
+'args: \(([^,]*), ([^)]*)\)/'\
+'#ifndef OVERRIDE_'"${BITNESS}"'_$1\n'\
+'SC_LTTNG_TRACEPOINT_EVENT($1,\n'\
+' TP_PROTO(sc_exit(long ret,) $4 $6, $5 $7),\n'\
+' TP_ARGS(sc_exit(ret,) $6, $7),\n'\
+' TP_FIELDS(sc_exit(ctf_integer(long, ret, ret)) '"${ARG1}"'(ctf_integer($4, $6, $6)) '"${ARG2}"'(ctf_integer($5, $7, $7)))\n'\
+')\n'\
+'#endif/g' >> "${HEADER}"
+done
+
+# types: 4 5 6
+# args 7 8 9
+
+NRARGS=3
+grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " "${SRCFILE}" | while read -r LINE; do
+ SC_NAME=$(echo "${LINE}" | perl -p -e 's/^syscall ([^ ]*) .*/$1/g')
+ ARG1=$(./lttng-get-syscall-inout.sh table-syscall-inout.txt "${SC_NAME}" 1)
+ ARG2=$(./lttng-get-syscall-inout.sh table-syscall-inout.txt "${SC_NAME}" 2)
+ ARG3=$(./lttng-get-syscall-inout.sh table-syscall-inout.txt "${SC_NAME}" 3)
+
+ echo Syscall: "${SC_NAME}" "${ARG1}" "${ARG2}" "${ARG3}"
+
+ # shellcheck disable=SC2026
+ echo "${LINE}" | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
+'types: \(([^,]*), ([^,]*), ([^)]*)\) '\
+'args: \(([^,]*), ([^,]*), ([^)]*)\)/'\
+'#ifndef OVERRIDE_'"${BITNESS}"'_$1\n'\
+'SC_LTTNG_TRACEPOINT_EVENT($1,\n'\
+' TP_PROTO(sc_exit(long ret,) $4 $7, $5 $8, $6 $9),\n'\
+' TP_ARGS(sc_exit(ret,) $7, $8, $9),\n'\
+' TP_FIELDS(sc_exit(ctf_integer(long, ret, ret)) '"${ARG1}"'(ctf_integer($4, $7, $7)) '"${ARG2}"'(ctf_integer($5, $8, $8)) '"${ARG3}"'(ctf_integer($6, $9, $9)))\n'\
+')\n'\
+'#endif/g' >> "${HEADER}"
+done
+
+
+# types: 4 5 6 7
+# args 8 9 10 11
+
+NRARGS=4
+grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " "${SRCFILE}" | while read -r LINE; do
+ SC_NAME=$(echo "${LINE}" | perl -p -e 's/^syscall ([^ ]*) .*/$1/g')
+ ARG1=$(./lttng-get-syscall-inout.sh table-syscall-inout.txt "${SC_NAME}" 1)
+ ARG2=$(./lttng-get-syscall-inout.sh table-syscall-inout.txt "${SC_NAME}" 2)
+ ARG3=$(./lttng-get-syscall-inout.sh table-syscall-inout.txt "${SC_NAME}" 3)
+ ARG4=$(./lttng-get-syscall-inout.sh table-syscall-inout.txt "${SC_NAME}" 4)
+
+ echo Syscall: "${SC_NAME}" "${ARG1}" "${ARG2}" "${ARG3}" "${ARG4}"
+
+ # shellcheck disable=SC2026
+ echo "${LINE}" | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
+'types: \(([^,]*), ([^,]*), ([^,]*), ([^)]*)\) '\
+'args: \(([^,]*), ([^,]*), ([^,]*), ([^)]*)\)/'\
+'#ifndef OVERRIDE_'"${BITNESS}"'_$1\n'\
+'SC_LTTNG_TRACEPOINT_EVENT($1,\n'\
+' TP_PROTO(sc_exit(long ret,) $4 $8, $5 $9, $6 $10, $7 $11),\n'\
+' TP_ARGS(sc_exit(ret,) $8, $9, $10, $11),\n'\
+' TP_FIELDS(sc_exit(ctf_integer(long, ret, ret)) '"${ARG1}"'(ctf_integer($4, $8, $8)) '"${ARG2}"'(ctf_integer($5, $9, $9)) '"${ARG3}"'(ctf_integer($6, $10, $10)) '"${ARG4}"'(ctf_integer($7, $11, $11)))\n'\
+')\n'\
+'#endif/g' >> "${HEADER}"
+done
+
+# types: 4 5 6 7 8
+# args 9 10 11 12 13
+
+NRARGS=5
+grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " "${SRCFILE}" | while read -r LINE; do
+ SC_NAME=$(echo "${LINE}" | perl -p -e 's/^syscall ([^ ]*) .*/$1/g')
+ ARG1=$(./lttng-get-syscall-inout.sh table-syscall-inout.txt "${SC_NAME}" 1)
+ ARG2=$(./lttng-get-syscall-inout.sh table-syscall-inout.txt "${SC_NAME}" 2)
+ ARG3=$(./lttng-get-syscall-inout.sh table-syscall-inout.txt "${SC_NAME}" 3)
+ ARG4=$(./lttng-get-syscall-inout.sh table-syscall-inout.txt "${SC_NAME}" 4)
+ ARG5=$(./lttng-get-syscall-inout.sh table-syscall-inout.txt "${SC_NAME}" 5)
+
+ echo Syscall: "${SC_NAME}" "${ARG1}" "${ARG2}" "${ARG3}" "${ARG4}" "${ARG5}"
+
+ # shellcheck disable=SC2026
+ echo "${LINE}" | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
+'types: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^)]*)\) '\
+'args: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^)]*)\)/'\
+'#ifndef OVERRIDE_'"${BITNESS}"'_$1\n'\
+'SC_LTTNG_TRACEPOINT_EVENT($1,\n'\
+' TP_PROTO(sc_exit(long ret,) $4 $9, $5 $10, $6 $11, $7 $12, $8 $13),\n'\
+' TP_ARGS(sc_exit(ret,) $9, $10, $11, $12, $13),\n'\
+' TP_FIELDS(sc_exit(ctf_integer(long, ret, ret)) '"${ARG1}"'(ctf_integer($4, $9, $9)) '"${ARG2}"'(ctf_integer($5, $10, $10)) '"${ARG3}"'(ctf_integer($6, $11, $11)) '"${ARG4}"'(ctf_integer($7, $12, $12)) '"${ARG5}"'(ctf_integer($8, $13, $13)))\n'\
+')\n'\
+'#endif/g' >> "${HEADER}"
+done
+
+
+# types: 4 5 6 7 8 9
+# args 10 11 12 13 14 15
+
+NRARGS=6
+grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " "${SRCFILE}" | while read -r LINE; do
+ SC_NAME=$(echo "${LINE}" | perl -p -e 's/^syscall ([^ ]*) .*/$1/g')
+ ARG1=$(./lttng-get-syscall-inout.sh table-syscall-inout.txt "${SC_NAME}" 1)
+ ARG2=$(./lttng-get-syscall-inout.sh table-syscall-inout.txt "${SC_NAME}" 2)
+ ARG3=$(./lttng-get-syscall-inout.sh table-syscall-inout.txt "${SC_NAME}" 3)
+ ARG4=$(./lttng-get-syscall-inout.sh table-syscall-inout.txt "${SC_NAME}" 4)
+ ARG5=$(./lttng-get-syscall-inout.sh table-syscall-inout.txt "${SC_NAME}" 5)
+ ARG6=$(./lttng-get-syscall-inout.sh table-syscall-inout.txt "${SC_NAME}" 6)
+
+ echo Syscall: "${SC_NAME}" "${ARG1}" "${ARG2}" "${ARG3}" "${ARG4}" "${ARG5}" "${ARG6}"
+
+ # shellcheck disable=SC2026
+ echo "${LINE}" | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
+'types: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^\)]*)\) '\
+'args: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^\)]*)\)/'\
+'#ifndef OVERRIDE_'"${BITNESS}"'_$1\n'\
+'SC_LTTNG_TRACEPOINT_EVENT($1,\n'\
+' TP_PROTO(sc_exit(long ret,) $4 $10, $5 $11, $6 $12, $7 $13, $8 $14, $9 $15),\n'\
+' TP_ARGS(sc_exit(ret,) $10, $11, $12, $13, $14, $15),\n'\
+' TP_FIELDS(sc_exit(ctf_integer(long, ret, ret)) '"${ARG1}"'(ctf_integer($4, $10, $10)) '"${ARG2}"'(ctf_integer($5, $11, $11)) '"${ARG3}"'(ctf_integer($6, $12, $12)) '"${ARG4}"'(ctf_integer($7, $13, $13)) '"${ARG5}"'(ctf_integer($8, $14, $14)) '"${ARG6}"'(ctf_integer($9, $15, $15)))\n'\
+')\n'\
+'#endif/g' >> "${HEADER}"
+done
+
+# Macro for tracing syscall table
+
+echo \
+"
+#endif /* _TRACE_SYSCALLS_${CLASSCAP}_H */
+
+/* This part must be outside protection */
+#include <lttng/define_trace.h>
+
+#else /* CREATE_SYSCALL_TABLE */
+
+#include \"${INPUTFILE}_${CLASS}_override.h\"
+#include \"syscalls_${CLASS}_override.h\"
+" >> "${HEADER}"
+
+NRARGS=0
+
+if [ "$CLASS" = integers ]; then
+ #noargs
+
+ # shellcheck disable=SC2129
+ printf '#ifdef SC_ENTER\n' >> "${HEADER}"
+
+ # shellcheck disable=SC2026
+ grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " "${SRCFILE}" | \
+ perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) .*$/'\
+'#ifndef OVERRIDE_TABLE_'"${BITNESS}"'_$1\n'\
+'TRACE_SYSCALL_TABLE\(syscalls_noargs, $1, $2, $3\)\n'\
+'#endif/g' >> "${HEADER}"
+
+ printf '#else /* #ifdef SC_ENTER */\n' >> "${HEADER}"
+
+ # shellcheck disable=SC2026
+ grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " "${SRCFILE}" | \
+ perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) .*$/'\
+'#ifndef OVERRIDE_TABLE_'"${BITNESS}"'_$1\n'\
+'TRACE_SYSCALL_TABLE($1, $1, $2, $3)\n'\
+'#endif/g' >> "${HEADER}"
+
+ printf '#endif /* else #ifdef SC_ENTER */\n' >> "${HEADER}"
+fi
+
+#others.
+# shellcheck disable=SC2026
+grep -v "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " "${SRCFILE}" | \
+ perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) .*$/'\
+'#ifndef OVERRIDE_TABLE_'"${BITNESS}"'_$1\n'\
+'TRACE_SYSCALL_TABLE($1, $1, $2, $3)\n'\
+'#endif/g' >> "${HEADER}"
+
+printf '\n#endif /* CREATE_SYSCALL_TABLE */\n' >> "${HEADER}"
+
+#fields names: ...char * type with *name* or *file* or *path* or *root*
+# or *put_old* or *type*
+perl -pi -e 's/ctf_integer\(([^,)]*char \*), ([^\)]*)(name|file|path|root|put_old|type)([^\)]*)\)/ctf_user_string($2$3$4)/g' \
+ "${HEADER}"
+
+#prettify addresses heuristics.
+#field names with addr or ptr
+perl -pi -e 's/ctf_integer\(([^,)]*), ([^,)]*addr|[^,)]*ptr)([^),]*)\)/ctf_integer_hex($1, $2$3, $2$3)/g' \
+ "${HEADER}"
+
+#field types ending with '*'
+perl -pi -e 's/ctf_integer\(([^,)]*\*), ([^),]*)\)/ctf_integer_hex($1, $2, $2)/g' "${HEADER}"
+
+# EOF
projects / lttng-modules.git / blobdiff