| // UNSUPPORTED: windows |
| // The sanitizer-windows bot is saying: |
| // instrprof-write-buffer-internal.c.tmp.buf.profraw: Invalid instrumentation profile data (file header is corrupt) |
| |
| // RUN: rm -f %t.buf.profraw %t.profraw |
| // RUN: %clang_profgen -w -o %t %s |
| // RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t %t.buf.profraw |
| // RUN: llvm-profdata show %t.buf.profraw | FileCheck %s -check-prefix=WRITE-BUFFER |
| // RUN: not llvm-profdata show %t.profraw 2>&1 | FileCheck %s -check-prefix=ALREADY-DUMPED |
| |
| // WRITE-BUFFER: Instrumentation level: Front-end |
| // WRITE-BUFFER: Total functions: 1 |
| // WRITE-BUFFER: Maximum function count: 1 |
| // WRITE-BUFFER: Maximum internal block count: 0 |
| |
| // ALREADY-DUMPED: error: {{.+}}: empty raw profile file |
| |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| const void *__llvm_profile_begin_data(void); |
| const void *__llvm_profile_end_data(void); |
| const char *__llvm_profile_begin_names(void); |
| const char *__llvm_profile_end_names(void); |
| char *__llvm_profile_begin_counters(void); |
| char *__llvm_profile_end_counters(void); |
| |
| uint64_t __llvm_profile_get_size_for_buffer_internal( |
| const void *DataBegin, const void *DataEnd, const char *CountersBegin, |
| const char *CountersEnd, const char *NamesBegin, const char *NamesEnd); |
| |
| int __llvm_profile_write_buffer_internal(char *Buffer, const void *DataBegin, |
| const void *DataEnd, |
| const char *CountersBegin, |
| const char *CountersEnd, |
| const char *NamesBegin, |
| const char *NamesEnd); |
| |
| void __llvm_profile_set_dumped(void); |
| |
| int main(int argc, const char *argv[]) { |
| uint64_t bufsize = __llvm_profile_get_size_for_buffer_internal( |
| __llvm_profile_begin_data(), __llvm_profile_end_data(), |
| __llvm_profile_begin_counters(), __llvm_profile_end_counters(), |
| __llvm_profile_begin_names(), __llvm_profile_end_names()); |
| |
| char *buf = malloc(bufsize); |
| int ret = __llvm_profile_write_buffer_internal(buf, |
| __llvm_profile_begin_data(), __llvm_profile_end_data(), |
| __llvm_profile_begin_counters(), __llvm_profile_end_counters(), |
| __llvm_profile_begin_names(), __llvm_profile_end_names()); |
| |
| if (ret != 0) { |
| fprintf(stderr, "failed to write buffer"); |
| return ret; |
| } |
| |
| FILE *f = fopen(argv[1], "w"); |
| fwrite(buf, bufsize, 1, f); |
| fclose(f); |
| free(buf); |
| |
| __llvm_profile_set_dumped(); |
| |
| return 0; |
| } |