[sanitizer_common] [Darwin] Fix strncmp => internal_strncmp in NextSegmentLoad

[ndrewh]

#166005 introduced a call to strncmp, but we interpose that on macOS. We should use internal_strncmp instead.

[llvmbot]

@llvm/pr-subscribers-compiler-rt-sanitizer

Author: Andrew Haberlandt (ndrewh)

Changes

---

Full diff: https://github.com/llvm/llvm-project/pull/166972.diff

1 Files Affected:

• (modified) compiler-rt/lib/sanitizer_common/sanitizer_procmaps_mac.cpp (+1-1)

diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_procmaps_mac.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_procmaps_mac.cpp
index 72f4bbf212f9a..e5008041bbb59 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_procmaps_mac.cpp
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_procmaps_mac.cpp
@@ -305,7 +305,7 @@ static bool NextSegmentLoad(MemoryMappedSegment *segment,
   layout_data->current_load_cmd_count--;
   if (((const load_command *)lc)->cmd == kLCSegment) {
     const SegmentCommand* sc = (const SegmentCommand *)lc;
-    if (strncmp(sc->segname, "__LINKEDIT", sizeof("__LINKEDIT")) == 0) {
+    if (internal_strncmp(sc->segname, "__LINKEDIT", sizeof("__LINKEDIT")) == 0) {
       // The LINKEDIT sections are for internal linker use, and may alias
       // with the LINKEDIT section for other modules. (If we included them,
       // our memory map would contain overlappping sections.)

[github-actions]

✅ With the latest revision this PR passed the C/C++ code formatter.

[DanBlackwell]

Makes sense, thanks!

[ndrewh]

closed in favor of #167800