3a4d373ec2
The first 8b of each raw profile section need to be aligned to 8b since the first item in each section is a u64 count of the number of items in the section. Summary of changes: * Assert alignment when reading counts. * Update test to check alignment, relax some size checks to allow padding. * Update raw binary inputs for llvm-profdata tests. Differential Revision: https://reviews.llvm.org/D114826
43 lines
1.3 KiB
Plaintext
43 lines
1.3 KiB
Plaintext
REQUIRES: x86_64-linux
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The input raw profile test has been generated from the following source code:
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```
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#include <stdlib.h>
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#include <string.h>
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int main(int argc, char **argv) {
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char *x = (char *)malloc(10);
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memset(x, 0, 10);
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free(x);
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x = (char *)malloc(10);
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memset(x, 0, 10);
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free(x);
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return 0;
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}
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```
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The following commands were used to compile the source to a memprof instrumented
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executable and collect a raw binary format profile. Since the profile contains
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virtual addresses for the callstack, we do not expect the raw binary profile to
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be deterministic. The summary should be deterministic apart from changes to
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the shared libraries linked in which could change the number of segments
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recorded.
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```
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clang -fmemory-profile -mno-omit-leaf-frame-pointer -fno-omit-frame-pointer -fno-optimize-sibling-calls -gline-tables-only -m64 -Wl,-build-id source.c -o rawprofile.out
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env MEMPROF_OPTIONS=log_path=stdout ./rawprofile.out > basic.memprofraw
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```
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RUN: llvm-profdata show --memory %p/Inputs/basic.memprofraw -o - | FileCheck %s
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We expect 3 MIB entries, 1 each for the malloc calls in the program and one
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additional entry from a realloc in glibc/libio/vasprintf.c.
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CHECK: MemProf Profile 1
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CHECK: Version: 1
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CHECK: TotalSizeBytes: 1016
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CHECK: NumSegments: 9
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CHECK: NumMIBInfo: 3
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CHECK: NumStackOffsets: 3
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