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authorUlrich Drepper <drepper@redhat.com>2003-09-24 03:22:56 +0000
committerUlrich Drepper <drepper@redhat.com>2003-09-24 03:22:56 +0000
commit54ee14b3882bc7f2fcace383ee12da765e86e2ee (patch)
tree63e8a3a0e4eba8a081f0db111d6df51668ebaf3c /sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S
parent16a76cd23ce9d3924fa192395e730423e3dc8b36 (diff)
downloadglibc-54ee14b3882bc7f2fcace383ee12da765e86e2ee.tar.gz
Update.
2003-09-23 Ulrich Drepper <drepper@redhat.com> * sysdeps/unix/sysv/linux/powerpc/powerpc32/Versions [libc] (GLIBC_2.3.3): Add setcontext, getcontext, swapcontext, and makecontext. * sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h: Correct change for include Altivec support for PPC32. It was not compatible. * sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.h: Adjust offsets for ucontext_t change. * sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S: Adjust for ucontext_t change. Add compatibility code. * sysdeps/unix/sysv/linux/powerpc/powerpc32/makecontext.S: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S: Likewise. Patch by Paul Mackerras <paulus@samba.org>. 2003-02-25 Randolph Chung <tausq@debian.org> * sysdeps/hppa/Makefile: Include compat code in build. * sysdeps/hppa/libgcc-compat.c: New file. * sysdeps/hppa/Dist: Add libgcc-compat.c. * sysdeps/hppa/Versions [GLIBC_2.2]: Add __clz_tab.
Diffstat (limited to 'sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S')
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S25
1 files changed, 22 insertions, 3 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S b/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S
index 88cf0dae8f..fac6802959 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S
@@ -18,6 +18,7 @@
02111-1307 USA. */
#include <sysdep.h>
+#include <shlib-compat.h>
#define __ASSEMBLY__
#include <asm/ptrace.h>
@@ -25,6 +26,8 @@
ENTRY(__swapcontext)
/* Save the current context */
+ addi r3,r3,_UC_REG_SPACE
+ stw r3,_UC_REGS_PTR - _UC_REG_SPACE(r3)
stw r0,_UC_GREGS+(PT_R0*4)(r3)
stw r1,_UC_GREGS+(PT_R1*4)(r3)
mflr r0
@@ -115,7 +118,7 @@ ENTRY(__swapcontext)
stfd fp31,_UC_FREGS+(31*8)(r3)
stfd fp0,_UC_FREGS+(32*8)(r3)
- addi r5,r3,_UC_SIGMASK
+ addi r5,r3,_UC_SIGMASK - _UC_REG_SPACE
addi r4,r4,_UC_SIGMASK
li r3,SIG_SETMASK
bl JUMPTARGET(sigprocmask)
@@ -133,6 +136,8 @@ ENTRY(__swapcontext)
* r0, xer, ctr. We don't restore r2 since it will be used as
* the TLS pointer.
*/
+ mr r4,r31
+ lwz r31,_UC_REGS_PTR(r31)
lwz r0,_UC_GREGS+(PT_MSR*4)(r31)
cmpwi r0,0
bne L(do_sigret)
@@ -223,11 +228,25 @@ L(error_exit):
blr
L(do_sigret):
- addi r1,r31,-0xd0
+ addi r1,r4,-0xd0
li r0,SYS_ify(rt_sigreturn)
sc
/* NOTREACHED */
PSEUDO_END(__swapcontext)
-weak_alias(__swapcontext, swapcontext)
+versioned_symbol (libc, __swapcontext, swapcontext, GLIBC_2_3_3)
+
+#if SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_3_3)
+
+#define _ERRNO_H 1
+#include <bits/errno.h>
+
+ENTRY (__swapcontext_stub)
+ li r3,ENOSYS
+ b JUMPTARGET(__syscall_error)
+ END (__swapcontext_stub)
+
+compat_symbol (libc, __swapcontext_stub, swapcontext, GLIBC_2_1)
+
+#endif