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[libc] Also remove _FORTIFY_SOURCE before including <stdlib.h> in overlay mode. #142647

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Merged
merged 1 commit into from
Jun 3, 2025
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[libc] Also remove _FORTIFY_SOURCE before including <stdlib.h> in overlay mode. #142647

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10 changes: 10 additions & 0 deletions libc/hdr/stdlib_overlay.h
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,11 @@
// functions, causing external alias errors. They are guarded by
// `__USE_FORTIFY_LEVEL`, which will be temporarily disabled.

#ifdef _FORTIFY_SOURCE
#define LIBC_OLD_FORTIFY_SOURCE _FORTIFY_SOURCE
#undef _FORTIFY_SOURCE
#endif

#ifdef __USE_FORTIFY_LEVEL
#define LIBC_OLD_USE_FORTIFY_LEVEL __USE_FORTIFY_LEVEL
#undef __USE_FORTIFY_LEVEL
Expand All @@ -27,6 +32,11 @@

#include <stdlib.h>

#ifdef LIBC_OLD_FORTIFY_SOURCE
#define _FORTIFY_SOURCE LIBC_OLD_FORTIFY_SOURCE
#undef LIBC_OLD_FORTIFY_SOURCE
#endif

#ifdef LIBC_OLD_USE_FORTIFY_LEVEL
#undef __USE_FORTIFY_LEVEL
#define __USE_FORTIFY_LEVEL LIBC_OLD_USE_FORTIFY_LEVEL
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