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glibc_15SP3_GA
aarch64-rawmemchr-unwind.patch
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File aarch64-rawmemchr-unwind.patch of Package glibc_15SP3_GA
From 3f798427884fa57770e8e2291cf58d5918254bb5 Mon Sep 17 00:00:00 2001 From: Andreas Schwab <schwab@suse.de> Date: Thu, 23 Nov 2023 18:23:46 +0100 Subject: [PATCH] aarch64: correct CFI in rawmemchr (bug 31113) The .cfi_return_column directive changes the return column for the whole FDE range. But the actual intent is to tell the unwinder that the value in x30 (lr) now resides in x15 after the move, and that is expressed by the .cfi_register directive. --- sysdeps/aarch64/rawmemchr.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sysdeps/aarch64/rawmemchr.S b/sysdeps/aarch64/rawmemchr.S index efc4b7007b..1fff094215 100644 --- a/sysdeps/aarch64/rawmemchr.S +++ b/sysdeps/aarch64/rawmemchr.S @@ -31,7 +31,7 @@ ENTRY (__rawmemchr) L(do_strlen): mov x15, x30 - cfi_return_column (x15) + cfi_register (x30, x15) mov x14, x0 bl __strlen add x0, x14, x0 -- 2.43.0
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