From 29f0db6a2e00fb17f5fe1eb1eee853436247ffe2 Mon Sep 17 00:00:00 2001 From: Jeevitha Palanisamy Date: Fri, 30 Aug 2024 08:15:16 -0500 Subject: [PATCH] powerpc64: Fix syscall_cancel build for powerpc64le-linux-gnu [BZ #32125] In __syscall_cancel_arch, there's a tail call to __syscall_do_cancel. On P10, since the caller uses the TOC and the callee is using PC-relative addressing, there's only a branch instruction with no NOPs to restore the TOC, which causes the build error. The fix involves adding the NOTOC directive to the branch instruction, informing the linker not to generate a TOC stub, thus resolving the issue. --- sysdeps/powerpc/powerpc64/sysdep.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sysdeps/powerpc/powerpc64/sysdep.h b/sysdeps/powerpc/powerpc64/sysdep.h index 643aadaae0..c439b06121 100644 --- a/sysdeps/powerpc/powerpc64/sysdep.h +++ b/sysdeps/powerpc/powerpc64/sysdep.h @@ -354,7 +354,7 @@ LT_LABELSUFFIX(name,_name_end): ; \ #ifdef SHARED # define TAIL_CALL_NO_RETURN(__func) \ - b JUMPTARGET(__func) + b JUMPTARGET (NOTOC (__func)) #else # define TAIL_CALL_NO_RETURN(__func) \ .ifdef .Local ## __func; \ -- 2.43.5