73 lines · c
1// UNSUPPORTED: target={{.*windows.*}}2// The sanitizer-windows bot is saying:3// instrprof-write-buffer-internal.c.tmp.buf.profraw: Invalid instrumentation profile data (file header is corrupt)4 5// RUN: rm -f %t.buf.profraw %t.profraw6// RUN: %clang_profgen -w -o %t %s7// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t %t.buf.profraw8// RUN: llvm-profdata show %t.buf.profraw | FileCheck %s -check-prefix=WRITE-BUFFER9// RUN: not llvm-profdata show %t.profraw 2>&1 | FileCheck %s -check-prefix=ALREADY-DUMPED10 11// WRITE-BUFFER: Instrumentation level: Front-end12// WRITE-BUFFER: Total functions: 113// WRITE-BUFFER: Maximum function count: 114// WRITE-BUFFER: Maximum internal block count: 015 16// ALREADY-DUMPED: error: {{.+}}: empty raw profile file17 18#include <stdint.h>19#include <stdio.h>20#include <stdlib.h>21 22const void *__llvm_profile_begin_data(void);23const void *__llvm_profile_end_data(void);24const char *__llvm_profile_begin_names(void);25const char *__llvm_profile_end_names(void);26char *__llvm_profile_begin_counters(void);27char *__llvm_profile_end_counters(void);28char *__llvm_profile_begin_bitmap(void);29char *__llvm_profile_end_bitmap(void);30 31uint64_t __llvm_profile_get_size_for_buffer_internal(32 const void *DataBegin, const void *DataEnd, const char *CountersBegin,33 const char *CountersEnd, const char *BitmapBegin, const char *BitmapEnd,34 const char *NamesBegin, const char *NamesEnd, const void *VTableBegin,35 const void *VTableEnd, const char *VNamesBegin, const char *VNamesEnd);36 37int __llvm_profile_write_buffer_internal(38 char *Buffer, const void *DataBegin, const void *DataEnd,39 const char *CountersBegin, const char *CountersEnd, const char *BitmapBegin,40 const char *BitmapEnd, const char *NamesBegin, const char *NamesEnd);41 42void __llvm_profile_set_dumped(void);43 44int main(int argc, const char *argv[]) {45 uint64_t bufsize = __llvm_profile_get_size_for_buffer_internal(46 __llvm_profile_begin_data(), __llvm_profile_end_data(),47 __llvm_profile_begin_counters(), __llvm_profile_end_counters(),48 __llvm_profile_begin_bitmap(), __llvm_profile_end_bitmap(),49 __llvm_profile_begin_names(), __llvm_profile_end_names(), NULL, NULL,50 NULL, NULL);51 52 char *buf = malloc(bufsize);53 int ret = __llvm_profile_write_buffer_internal(54 buf, __llvm_profile_begin_data(), __llvm_profile_end_data(),55 __llvm_profile_begin_counters(), __llvm_profile_end_counters(),56 __llvm_profile_begin_bitmap(), __llvm_profile_end_bitmap(),57 __llvm_profile_begin_names(), __llvm_profile_end_names());58 59 if (ret != 0) {60 fprintf(stderr, "failed to write buffer");61 return ret;62 }63 64 FILE *f = fopen(argv[1], "w");65 fwrite(buf, bufsize, 1, f);66 fclose(f);67 free(buf);68 69 __llvm_profile_set_dumped();70 71 return 0;72}73