From: Jeevitha Palanisamy Date: Fri, 30 Aug 2024 13:15:16 +0000 (-0500) Subject: powerpc64: Fix syscall_cancel build for powerpc64le-linux-gnu [BZ #32125] X-Git-Tag: glibc-2.41~705 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=29f0db6a2e00fb17f5fe1eb1eee853436247ffe2;p=thirdparty%2Fglibc.git 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. --- 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; \