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-rw-r--r--sys-libs/glibc/files/2.34/glibc-2.34-hppa-asm-getcontext-fixes.patch214
1 files changed, 214 insertions, 0 deletions
diff --git a/sys-libs/glibc/files/2.34/glibc-2.34-hppa-asm-getcontext-fixes.patch b/sys-libs/glibc/files/2.34/glibc-2.34-hppa-asm-getcontext-fixes.patch
new file mode 100644
index 00000000..299a6dae
--- /dev/null
+++ b/sys-libs/glibc/files/2.34/glibc-2.34-hppa-asm-getcontext-fixes.patch
@@ -0,0 +1,214 @@
+https://sourceware.org/git/?p=glibc.git;a=patch;h=738ee53f0ce5e39b9b7a6777f5d3057afbaac498
+https://sourceware.org/git/?p=glibc.git;a=patch;h=d53b9cc391c72a1011ea8fe7a9f70dc5060a0db2
+
+From 738ee53f0ce5e39b9b7a6777f5d3057afbaac498 Mon Sep 17 00:00:00 2001
+From: John David Anglin <danglin@gcc.gnu.org>
+Date: Tue, 15 Mar 2022 23:12:37 +0000
+Subject: [PATCH] hppa: Implement swapcontext in assembler (bug 28960)
+
+When swapcontext.c is compiled without -g, the following error occurs:
+Error: CFI instruction used without previous .cfi_startproc
+
+Fix by converting swapcontext routine to assembler.
+---
+ sysdeps/unix/sysv/linux/hppa/swapcontext.S | 72 +++++++++++++++++++
+ sysdeps/unix/sysv/linux/hppa/swapcontext.c | 83 ----------------------
+ 2 files changed, 72 insertions(+), 83 deletions(-)
+ create mode 100644 sysdeps/unix/sysv/linux/hppa/swapcontext.S
+ delete mode 100644 sysdeps/unix/sysv/linux/hppa/swapcontext.c
+
+diff --git a/sysdeps/unix/sysv/linux/hppa/swapcontext.S b/sysdeps/unix/sysv/linux/hppa/swapcontext.S
+new file mode 100644
+index 0000000000..94b164dc63
+--- /dev/null
++++ b/sysdeps/unix/sysv/linux/hppa/swapcontext.S
+@@ -0,0 +1,72 @@
++/* Swap to new context.
++ Copyright (C) 2008-2022 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library. If not, see
++ <https://www.gnu.org/licenses/>. */
++
++#include <sysdep.h>
++#include "ucontext_i.h"
++
++ .text
++ENTRY(__swapcontext)
++
++ /* Copy rp to ret0 (r28). */
++ copy %rp,%ret0
++
++ /* Create a frame. */
++ ldo 64(%sp),%sp
++ .cfi_def_cfa_offset -64
++
++ /* Save the current machine context to oucp. */
++ bl __getcontext,%rp
++
++ /* Copy oucp to register ret1 (r29). __getcontext saves and
++ restores it on a normal return. It is restored from oR29
++ on reactivation. */
++ copy %r26,%ret1
++
++ /* Pop frame. */
++ ldo -64(%sp),%sp
++ .cfi_def_cfa_offset 0
++
++ /* Load return pointer from oR28. */
++ ldw oR28(%ret1),%rp
++
++ /* Return if error. */
++ or,= %r0,%ret0,%r0
++ bv,n %r0(%rp)
++
++ /* Load sc_sar flag. */
++ ldb oSAR(%ret1),%r20
++
++ /* Return if oucp context has been reactivated. */
++ or,= %r0,%r20,%r0
++ bv,n %r0(%rp)
++
++ /* Mark sc_sar flag. */
++ ldi 1,%r20
++ stb %r20,oSAR(%ret1)
++
++ /* Activate the machine context in ucp. */
++ bl __setcontext,%rp
++ ldw oR25(%ret1),%r26
++
++ /* Load return pointer. */
++ ldw oR28(%ret1),%rp
++ bv,n %r0(%rp)
++
++PSEUDO_END(__swapcontext)
++
++weak_alias (__swapcontext, swapcontext)
+diff --git a/sysdeps/unix/sysv/linux/hppa/swapcontext.c b/sysdeps/unix/sysv/linux/hppa/swapcontext.c
+deleted file mode 100644
+index 1664f68c7b..0000000000
+--- a/sysdeps/unix/sysv/linux/hppa/swapcontext.c
++++ /dev/null
+@@ -1,83 +0,0 @@
+-/* Swap to new context.
+- Copyright (C) 2008-2021 Free Software Foundation, Inc.
+- This file is part of the GNU C Library.
+- Contributed by Helge Deller <deller@gmx.de>, 2008.
+-
+- The GNU C Library is free software; you can redistribute it and/or
+- modify it under the terms of the GNU Lesser General Public
+- License as published by the Free Software Foundation; either
+- version 2.1 of the License, or (at your option) any later version.
+-
+- The GNU C Library is distributed in the hope that it will be useful,
+- but WITHOUT ANY WARRANTY; without even the implied warranty of
+- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+- Lesser General Public License for more details.
+-
+- You should have received a copy of the GNU Lesser General Public
+- License along with the GNU C Library. If not, see
+- <https://www.gnu.org/licenses/>. */
+-
+-#include <ucontext.h>
+-#include "ucontext_i.h"
+-
+-extern int __getcontext (ucontext_t *ucp);
+-extern int __setcontext (const ucontext_t *ucp);
+-
+-int
+-__swapcontext (ucontext_t *oucp, const ucontext_t *ucp)
+-{
+- /* Save rp for debugger. */
+- asm ("stw %rp,-20(%sp)");
+- asm (".cfi_offset 2, -20");
+-
+- /* Copy rp to ret0 (r28). */
+- asm ("copy %rp,%ret0");
+-
+- /* Create a frame. */
+- asm ("ldo 64(%sp),%sp");
+- asm (".cfi_def_cfa_offset -64");
+-
+- /* Save the current machine context to oucp. */
+- asm ("bl __getcontext,%rp");
+-
+- /* Copy oucp to register ret1 (r29). __getcontext saves and restores it
+- on a normal return. It is restored from oR29 on reactivation. */
+- asm ("copy %r26,%ret1");
+-
+- /* Pop frame. */
+- asm ("ldo -64(%sp),%sp");
+- asm (".cfi_def_cfa_offset 0");
+-
+- /* Load return pointer from oR28. */
+- asm ("ldw %0(%%ret1),%%rp" : : "i" (oR28));
+-
+- /* Return if error. */
+- asm ("or,= %r0,%ret0,%r0");
+- asm ("bv,n %r0(%rp)");
+-
+- /* Load sc_sar flag. */
+- asm ("ldb %0(%%ret1),%%r20" : : "i" (oSAR));
+-
+- /* Return if oucp context has been reactivated. */
+- asm ("or,= %r0,%r20,%r0");
+- asm ("bv,n %r0(%rp)");
+-
+- /* Mark sc_sar flag. */
+- asm ("1: ldi 1,%r20");
+- asm ("stb %%r20,%0(%%ret1)" : : "i" (oSAR));
+-
+- /* Activate the machine context in ucp. */
+- asm ("bl __setcontext,%rp");
+- asm ("ldw %0(%%ret1),%%r26" : : "i" (oR25));
+-
+- /* Load return pointer. */
+- asm ("ldw %0(%%ret1),%%rp" : : "i" (oR28));
+-
+- /* A successful call to setcontext does not return. */
+- asm ("bv,n %r0(%rp)");
+-
+- /* Make gcc happy. */
+- return 0;
+-}
+-
+-weak_alias (__swapcontext, swapcontext)
+--
+2.27.0
+
+
+From d53b9cc391c72a1011ea8fe7a9f70dc5060a0db2 Mon Sep 17 00:00:00 2001
+From: John David Anglin <danglin@gcc.gnu.org>
+Date: Tue, 15 Mar 2022 23:04:39 +0000
+Subject: [PATCH] hppa: Use END instead of PSEUDO_END in swapcontext.S
+
+(cherry picked from commit 7a5c440102d4ec7fafd9bbd98eca9bd90ecaaafd)
+---
+ sysdeps/unix/sysv/linux/hppa/swapcontext.S | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/sysdeps/unix/sysv/linux/hppa/swapcontext.S b/sysdeps/unix/sysv/linux/hppa/swapcontext.S
+index 94b164dc63..fbc22586d1 100644
+--- a/sysdeps/unix/sysv/linux/hppa/swapcontext.S
++++ b/sysdeps/unix/sysv/linux/hppa/swapcontext.S
+@@ -67,6 +67,6 @@ ENTRY(__swapcontext)
+ ldw oR28(%ret1),%rp
+ bv,n %r0(%rp)
+
+-PSEUDO_END(__swapcontext)
++END(__swapcontext)
+
+ weak_alias (__swapcontext, swapcontext)
+--
+2.27.0