[PATCH v2 14/28] string: Use asm alias instead of symbol redirections for stpcpy and mempcpy
Adhemerval Zanella
adhemerval.zanella@linaro.org
Tue Oct 28 17:08:23 GMT 2025
Commit 939da411433 added symbols redirections to handle ISO C
namespace, however clang do not support to redeclare the function
prototype.
This patch replaces the symbol redirections by direct asm aliases, as
done to handle libcall generation done by compiler on some loop
optimizations.
Checked on all affected ABIs.
---
include/string.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/string.h b/include/string.h
index c26ca0927c..2ea212a401 100644
--- a/include/string.h
+++ b/include/string.h
@@ -188,8 +188,8 @@ extern __typeof (strsep) strsep attribute_hidden;
&& !defined NO_MEMPCPY_STPCPY_REDIRECT
/* Redirect calls to __builtin_mempcpy and __builtin_stpcpy to call
__mempcpy and __stpcpy if not inlined. */
-extern __typeof (mempcpy) mempcpy __asm__ ("__mempcpy");
-extern __typeof (stpcpy) stpcpy __asm__ ("__stpcpy");
+__asm__ ("mempcpy = __mempcpy");
+__asm__ ("stpcpy = __stpcpy");
#endif
extern void *__memcpy_chk (void *__restrict __dest,
--
2.43.0
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