47e5fcba57
This ports the profiling runtime on Fuchsia and enables the instrumentation. Unlike on other platforms, Fuchsia doesn't use files to dump the instrumentation data since on Fuchsia, filesystem may not be accessible to the instrumented process. We instead use the data sink to pass the profiling data to the system the same sanitizer runtimes do. Differential Revision: https://reviews.llvm.org/D47208 llvm-svn: 337881
78 lines
3.0 KiB
C
78 lines
3.0 KiB
C
/*===- InstrProfilingPlatformLinux.c - Profile data Linux platform ------===*\
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|*
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|* The LLVM Compiler Infrastructure
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|*
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|* This file is distributed under the University of Illinois Open Source
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|* License. See LICENSE.TXT for details.
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|*
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\*===----------------------------------------------------------------------===*/
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#if defined(__linux__) || defined(__FreeBSD__) || defined(__Fuchsia__) || \
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(defined(__sun__) && defined(__svr4__))
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#include <stdlib.h>
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#include "InstrProfiling.h"
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#define PROF_DATA_START INSTR_PROF_SECT_START(INSTR_PROF_DATA_SECT_NAME)
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#define PROF_DATA_STOP INSTR_PROF_SECT_STOP(INSTR_PROF_DATA_SECT_NAME)
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#define PROF_NAME_START INSTR_PROF_SECT_START(INSTR_PROF_NAME_SECT_NAME)
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#define PROF_NAME_STOP INSTR_PROF_SECT_STOP(INSTR_PROF_NAME_SECT_NAME)
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#define PROF_CNTS_START INSTR_PROF_SECT_START(INSTR_PROF_CNTS_SECT_NAME)
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#define PROF_CNTS_STOP INSTR_PROF_SECT_STOP(INSTR_PROF_CNTS_SECT_NAME)
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#define PROF_VNODES_START INSTR_PROF_SECT_START(INSTR_PROF_VNODES_SECT_NAME)
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#define PROF_VNODES_STOP INSTR_PROF_SECT_STOP(INSTR_PROF_VNODES_SECT_NAME)
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/* Declare section start and stop symbols for various sections
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* generated by compiler instrumentation.
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*/
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extern __llvm_profile_data PROF_DATA_START COMPILER_RT_VISIBILITY;
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extern __llvm_profile_data PROF_DATA_STOP COMPILER_RT_VISIBILITY;
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extern uint64_t PROF_CNTS_START COMPILER_RT_VISIBILITY;
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extern uint64_t PROF_CNTS_STOP COMPILER_RT_VISIBILITY;
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extern char PROF_NAME_START COMPILER_RT_VISIBILITY;
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extern char PROF_NAME_STOP COMPILER_RT_VISIBILITY;
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extern ValueProfNode PROF_VNODES_START COMPILER_RT_VISIBILITY;
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extern ValueProfNode PROF_VNODES_STOP COMPILER_RT_VISIBILITY;
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/* Add dummy data to ensure the section is always created. */
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__llvm_profile_data
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__prof_data_sect_data[0] COMPILER_RT_SECTION(INSTR_PROF_DATA_SECT_NAME_STR);
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uint64_t
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__prof_cnts_sect_data[0] COMPILER_RT_SECTION(INSTR_PROF_CNTS_SECT_NAME_STR);
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char __prof_nms_sect_data[0] COMPILER_RT_SECTION(INSTR_PROF_NAME_SECT_NAME_STR);
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ValueProfNode __prof_vnodes_sect_data[0] COMPILER_RT_SECTION(INSTR_PROF_VNODES_SECT_NAME_STR);
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COMPILER_RT_VISIBILITY const __llvm_profile_data *
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__llvm_profile_begin_data(void) {
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return &PROF_DATA_START;
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}
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COMPILER_RT_VISIBILITY const __llvm_profile_data *
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__llvm_profile_end_data(void) {
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return &PROF_DATA_STOP;
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}
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COMPILER_RT_VISIBILITY const char *__llvm_profile_begin_names(void) {
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return &PROF_NAME_START;
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}
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COMPILER_RT_VISIBILITY const char *__llvm_profile_end_names(void) {
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return &PROF_NAME_STOP;
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}
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COMPILER_RT_VISIBILITY uint64_t *__llvm_profile_begin_counters(void) {
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return &PROF_CNTS_START;
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}
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COMPILER_RT_VISIBILITY uint64_t *__llvm_profile_end_counters(void) {
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return &PROF_CNTS_STOP;
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}
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COMPILER_RT_VISIBILITY ValueProfNode *
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__llvm_profile_begin_vnodes(void) {
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return &PROF_VNODES_START;
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}
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COMPILER_RT_VISIBILITY ValueProfNode *__llvm_profile_end_vnodes(void) {
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return &PROF_VNODES_STOP;
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}
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COMPILER_RT_VISIBILITY ValueProfNode *CurrentVNode = &PROF_VNODES_START;
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COMPILER_RT_VISIBILITY ValueProfNode *EndVNode = &PROF_VNODES_STOP;
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#endif
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