962db7de84
Update the YAML format print out of the profile to include a summary instead of displaying the headers in the raw file buffer. This allows us to release the raw buffer early saving memory. Reviewed By: tejohnson Differential Revision: https://reviews.llvm.org/D126834
55 lines
1.6 KiB
Plaintext
55 lines
1.6 KiB
Plaintext
REQUIRES: x86_64-linux
|
|
|
|
The input raw profile test has been generated from the following source code:
|
|
|
|
```
|
|
#include <sanitizer/memprof_interface.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
int main(int argc, char **argv) {
|
|
char *x = (char *)malloc(10);
|
|
memset(x, 0, 10);
|
|
free(x);
|
|
__memprof_profile_dump();
|
|
x = (char *)malloc(10);
|
|
memset(x, 0, 10);
|
|
free(x);
|
|
return 0;
|
|
}
|
|
```
|
|
|
|
The following commands were used to compile the source to a memprof instrumented
|
|
executable and collect a raw binary format profile. Since the profile contains
|
|
virtual addresses for the callstack, we do not expect the raw binary profile to
|
|
be deterministic. The summary should be deterministic apart from changes to
|
|
the shared libraries linked in which could change the number of segments
|
|
recorded.
|
|
|
|
```
|
|
clang -fuse-ld=lld -Wl,--no-rosegment -gmlt -fdebug-info-for-profiling \
|
|
-fmemory-profile -mno-omit-leaf-frame-pointer -fno-omit-frame-pointer \
|
|
-fno-optimize-sibling-calls -m64 -Wl,-build-id source.c -o multi.memprofexe
|
|
|
|
env MEMPROF_OPTIONS=log_path=stdout ./rawprofile.out > multi.memprofraw
|
|
```
|
|
|
|
RUN: llvm-profdata show --memory %p/Inputs/multi.memprofraw --profiled-binary %p/Inputs/multi.memprofexe -o - | FileCheck %s
|
|
|
|
We expect 2 MIB entries, 1 each for the malloc calls in the program.
|
|
|
|
CHECK: MemprofProfile:
|
|
CHECK-NEXT: Summary:
|
|
CHECK-NEXT: Version: 1
|
|
CHECK-NEXT: NumSegments: 9
|
|
CHECK-NEXT: NumMibInfo: 2
|
|
CHECK-NEXT: NumAllocFunctions: 1
|
|
CHECK-NEXT: NumStackOffsets: 2
|
|
|
|
CHECK: SymbolName: main
|
|
CHECK-NEXT: LineOffset: 1
|
|
CHECK-NEXT: Column: 21
|
|
|
|
CHECK: SymbolName: main
|
|
CHECK-NEXT: LineOffset: 5
|
|
CHECK-NEXT: Column: 15
|