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Switch sanitizer_procmaps_bsd to internal_sysctl 

Summary:
Stop using directly sysctl(3) routines in sanitizer_procmaps_bsd
and replace it with internal_sysctl().

This will allow to install interceptors for sysctl(3).

Reviewers: joerg, vitalybuka

Reviewed By: vitalybuka

Subscribers: kubamracek, llvm-commits, #sanitizers

Tags: #sanitizers

Differential Revision: https://reviews.llvm.org/D52646

llvm-svn: 343370
This commit is contained in:
Kamil Rytarowski 2018-09-29 07:45:03 +00:00
parent 0509070811
commit a14b908381
1 changed files with 4 additions and 4 deletions
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8
compiler-rt/lib/sanitizer_common/sanitizer_procmaps_bsd.cc
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@ -67,8 +67,8 @@ void ReadProcMaps(ProcSelfMapsBuff *proc_maps) {
#endif
};
size_t Size = 0;
int Err = sysctl(Mib, ARRAY_SIZE(Mib), NULL, &Size, NULL, 0);
uptr Size = 0;
int Err = internal_sysctl(Mib, ARRAY_SIZE(Mib), NULL, &Size, NULL, 0);
CHECK_EQ(Err, 0);
CHECK_GT(Size, 0);
@ -76,7 +76,7 @@ void ReadProcMaps(ProcSelfMapsBuff *proc_maps) {
size_t MmapedSize = Size * 4 / 3;
void *VmMap = MmapOrDie(MmapedSize, "ReadProcMaps()");
Size = MmapedSize;
Err = sysctl(Mib, ARRAY_SIZE(Mib), VmMap, &Size, NULL, 0);
Err = internal_sysctl(Mib, ARRAY_SIZE(Mib), VmMap, &Size, NULL, 0);
CHECK_EQ(Err, 0);
proc_maps->data = (char *)VmMap;
#else
@ -88,7 +88,7 @@ void ReadProcMaps(ProcSelfMapsBuff *proc_maps) {
if (Size > 0x10000)
Size = 0x10000;
Size = (Size / sizeof(struct kinfo_vmentry)) * sizeof(struct kinfo_vmentry);
Err = sysctl(Mib, ARRAY_SIZE(Mib), Mem, &Size, NULL, 0);
Err = internal_sysctl(Mib, ARRAY_SIZE(Mib), Mem, &Size, NULL, 0);
CHECK_EQ(Err, 0);
MmapedSize = Size;
proc_maps->data = Mem;