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

diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_procmaps_bsd.cc b/compiler-rt/lib/sanitizer_common/sanitizer_procmaps_bsd.cc
index e41dc98..4cebd98 100644 (file)
--- a/compiler-rt/lib/sanitizer_common/sanitizer_procmaps_bsd.cc
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_procmaps_bsd.cc
@@ -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;