f21473752b
Existing code tended to assume that counters had type `uint64_t` and computed size from the number of counters. Fix this code to directly compute the counters size in number of bytes where possible. When the number of counters is needed, use `__llvm_profile_counter_entry_size()` or `getCounterTypeSize()`. In a later diff these functions will depend on the profile mode. Change the meaning of `DataSize` and `CountersSize` to make them more clear. * `DataSize` (`CountersSize`) - the size of the data (counter) section in bytes. * `NumData` (`NumCounters`) - the number of data (counter) entries. Reviewed By: kyulee Differential Revision: https://reviews.llvm.org/D116179
68 lines
2.5 KiB
C
68 lines
2.5 KiB
C
// UNSUPPORTED: windows
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// The sanitizer-windows bot is saying:
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// instrprof-write-buffer-internal.c.tmp.buf.profraw: Invalid instrumentation profile data (file header is corrupt)
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// RUN: rm -f %t.buf.profraw %t.profraw
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// RUN: %clang_profgen -w -o %t %s
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t %t.buf.profraw
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// RUN: llvm-profdata show %t.buf.profraw | FileCheck %s -check-prefix=WRITE-BUFFER
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// RUN: not llvm-profdata show %t.profraw 2>&1 | FileCheck %s -check-prefix=ALREADY-DUMPED
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// WRITE-BUFFER: Instrumentation level: Front-end
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// WRITE-BUFFER: Total functions: 1
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// WRITE-BUFFER: Maximum function count: 1
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// WRITE-BUFFER: Maximum internal block count: 0
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// ALREADY-DUMPED: error: {{.+}}: empty raw profile file
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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const void *__llvm_profile_begin_data(void);
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const void *__llvm_profile_end_data(void);
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const char *__llvm_profile_begin_names(void);
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const char *__llvm_profile_end_names(void);
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char *__llvm_profile_begin_counters(void);
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char *__llvm_profile_end_counters(void);
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uint64_t __llvm_profile_get_size_for_buffer_internal(
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const void *DataBegin, const void *DataEnd, const char *CountersBegin,
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const char *CountersEnd, const char *NamesBegin, const char *NamesEnd);
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int __llvm_profile_write_buffer_internal(char *Buffer, const void *DataBegin,
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const void *DataEnd,
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const char *CountersBegin,
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const char *CountersEnd,
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const char *NamesBegin,
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const char *NamesEnd);
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void __llvm_profile_set_dumped(void);
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int main(int argc, const char *argv[]) {
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uint64_t bufsize = __llvm_profile_get_size_for_buffer_internal(
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__llvm_profile_begin_data(), __llvm_profile_end_data(),
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__llvm_profile_begin_counters(), __llvm_profile_end_counters(),
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__llvm_profile_begin_names(), __llvm_profile_end_names());
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char *buf = malloc(bufsize);
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int ret = __llvm_profile_write_buffer_internal(buf,
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__llvm_profile_begin_data(), __llvm_profile_end_data(),
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__llvm_profile_begin_counters(), __llvm_profile_end_counters(),
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__llvm_profile_begin_names(), __llvm_profile_end_names());
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if (ret != 0) {
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fprintf(stderr, "failed to write buffer");
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return ret;
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}
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FILE *f = fopen(argv[1], "w");
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fwrite(buf, bufsize, 1, f);
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fclose(f);
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free(buf);
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__llvm_profile_set_dumped();
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return 0;
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}
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