From: GNU Libc Maintainers Date: Fri, 8 Sep 2023 18:39:29 +0000 (+0100) Subject: submitted-makecontext X-Git-Tag: archive/raspbian/2.37-12+rpi1^2^2^2~67 X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=b7cf9a79925c17f5d8fb79f41dc7b0ea46313bd6;p=glibc.git submitted-makecontext 2018-03-01 Aurelien Jarno [BZ #22910] * sysdeps/unix/sysv/linux/alpha/setcontext.S (__startcontext): Set up CFI directive to forbid further backtracing. Gbp-Pq: Topic alpha Gbp-Pq: Name submitted-makecontext.diff --- diff --git a/sysdeps/unix/sysv/linux/alpha/makecontext.S b/sysdeps/unix/sysv/linux/alpha/makecontext.S index e4c769b98..a22653ced 100644 --- a/sysdeps/unix/sysv/linux/alpha/makecontext.S +++ b/sysdeps/unix/sysv/linux/alpha/makecontext.S @@ -138,10 +138,14 @@ weak_alias (__makecontext, makecontext) .align 4 .ent __startcontext + cfi_startproc __startcontext: .frame $31, 0, $31, 0 .prologue 0 + /* Mark ra as undefined in order to stop unwinding here. */ + cfi_undefined(ra) + jsr $26, ($27), 0 ldgp $29, 0($26) mov $9, $16 @@ -160,4 +164,5 @@ __startcontext: halt + cfi_endproc .end __startcontext