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[PATCH] PPC32 factor context functions into and command and fpu/nofpu parts
- From: Steven Munroe <munroesj at us dot ibm dot com>
- To: Roland McGrath <roland at redhat dot com>, libc-alpha at sources dot redhat dot com
- Cc: libc-ports at sources dot redhat dot com, Dwayne McConnell <decimal at us dot ibm dot com>
- Date: Sun, 11 Dec 2005 22:04:09 -0600
- Subject: [PATCH] PPC32 factor context functions into and command and fpu/nofpu parts
- References: <20051103214813.8A86F1809DC@magilla.sf.frob.com>
Roland McGrath wrote:
Wouldn't it be better to avoid duplicating all that assembly code? Can you
change the main sysdeps/.../powerpc/powerpc32 files to use some #if around
the FPU parts? If the compiler predefines something, just use that.
If not, it can test something you define in the nofpu/*.S files with:
#define NO_FPU 1
#include <sysdeps/.../powerpc32/foobar.S>
Thanks,
Roland
Ok to do as you suggested I had to restructure the mainline a bit. The
Attached patch factors the common function of get/set/swapcontext.S into
get/set/swapcontext-common.S with conditional compilation of FPU and VMX
support. Then new implementations in powerpc32/fpu can #include the
common code as needed to to support the function.
A separate patch will include the powerpc32/nofpu implementation for ports.
2005-12-10 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S: Removed.
Moved common function to.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S: Removed.
Moved common function to.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S: Removed.
Moved common function to.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/getcontext.S:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/setcontext.S:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/swapcontext.S:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.h
(_UC_SIZE, _UC_SIZE_2_3_4): Defined.
diff -urN libc24-cvstip-20051206/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/getcontext.S libc24/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/getcontext.S
--- libc24-cvstip-20051206/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/getcontext.S Wed Dec 31 18:00:00 1969
+++ libc24/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/getcontext.S Fri Dec 09 21:54:37 2005
@@ -0,0 +1,82 @@
+/* Save current context.
+ Copyright (C) 2002, 2004, 2005 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+#include <rtld-global-offsets.h>
+#include <shlib-compat.h>
+#include <kernel-features.h>
+
+#define __ASSEMBLY__
+#include <asm/ptrace.h>
+#include "ucontext_i.h"
+
+#define __CONTEXT_FUNC_NAME __getcontext
+#define __CONTEXT_ENABLE_FPRS 1
+#define __CONTEXT_ENABLE_VRS 1
+
+
+#ifdef __ASSUME_SWAPCONTEXT_SYSCALL
+ .section ".text";
+ENTRY (__getcontext)
+ li r4,0
+ li r5,_UC_SIZE_2_3_4;
+ DO_CALL (SYS_ify (swapcontext));
+ bso- cr0,1f
+/* the kernel does not set the return code for the success case */
+ li r3,0
+ blr
+1:
+ b __syscall_error@local
+END(__getcontext)
+#else
+#include "getcontext-common.S"
+#endif
+
+versioned_symbol (libc, __getcontext, getcontext, GLIBC_2_3_4)
+
+#if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)
+ compat_text_section
+
+#undef __CONTEXT_FUNC_NAME
+#define __CONTEXT_FUNC_NAME __novec_getcontext
+#undef __CONTEXT_ENABLE_VRS
+
+#include "getcontext-common.S"
+
+ .previous
+
+compat_symbol (libc, __novec_getcontext, getcontext, GLIBC_2_3_3)
+
+#endif
+
+#if SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_3_3)
+
+#define _ERRNO_H 1
+#include <bits/errno.h>
+
+ compat_text_section
+ENTRY (__getcontext_stub)
+ li r3,ENOSYS
+ b __syscall_error@local
+END (__getcontext_stub)
+ .previous
+
+compat_symbol (libc, __getcontext_stub, getcontext, GLIBC_2_1)
+
+#endif
diff -urN libc24-cvstip-20051206/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/setcontext.S libc24/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/setcontext.S
--- libc24-cvstip-20051206/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/setcontext.S Wed Dec 31 18:00:00 1969
+++ libc24/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/setcontext.S Fri Dec 09 21:54:43 2005
@@ -0,0 +1,83 @@
+/* Jump to a new context.
+ Copyright (C) 2002, 2004, 2005 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+#include <rtld-global-offsets.h>
+#include <shlib-compat.h>
+
+#define __ASSEMBLY__
+#include <asm/ptrace.h>
+#include "ucontext_i.h"
+
+#define __CONTEXT_FUNC_NAME __setcontext
+#define __CONTEXT_ENABLE_FPRS 1
+#define __CONTEXT_ENABLE_VRS 1
+
+
+#ifdef __ASSUME_SWAPCONTEXT_SYSCALL
+ .section ".text";
+ENTRY (__setcontext)
+ mr 4,3
+ li 3,0
+ li 5,_UC_SIZE_2_3_4;
+ DO_CALL (SYS_ify (swapcontext));
+ bso- cr0,1f
+/* the kernel does not set the return code for the success case */
+ li r3,0
+ blr
+1:
+ b __syscall_error@local
+END(__setcontext)
+#else
+#include "setcontext-common.S"
+#endif
+
+versioned_symbol (libc, __setcontext, setcontext, GLIBC_2_3_4)
+
+#if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)
+
+ compat_text_section
+
+#undef __CONTEXT_FUNC_NAME
+#define __CONTEXT_FUNC_NAME __novec_setcontext
+#undef __CONTEXT_ENABLE_VRS
+
+#include "setcontext-common.S"
+
+ .previous
+
+compat_symbol (libc, __novec_setcontext, setcontext, GLIBC_2_3_3)
+
+#endif
+
+#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_3)
+
+#define _ERRNO_H 1
+#include <bits/errno.h>
+
+ compat_text_section
+ENTRY (__setcontext_stub)
+ li r3,ENOSYS
+ b __syscall_error@local
+END (__setcontext_stub)
+ .previous
+
+compat_symbol (libc, __setcontext_stub, setcontext, GLIBC_2_0)
+
+#endif
diff -urN libc24-cvstip-20051206/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/swapcontext.S libc24/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/swapcontext.S
--- libc24-cvstip-20051206/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/swapcontext.S Wed Dec 31 18:00:00 1969
+++ libc24/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/swapcontext.S Fri Dec 09 21:54:59 2005
@@ -0,0 +1,81 @@
+/* Save current context and jump to a new context.
+ Copyright (C) 2002, 2004, 2005 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+#include <rtld-global-offsets.h>
+#include <shlib-compat.h>
+#include <kernel-features.h>
+
+#define __ASSEMBLY__
+#include <asm/ptrace.h>
+#include "ucontext_i.h"
+
+#define __CONTEXT_FUNC_NAME __swapcontext
+#define __CONTEXT_ENABLE_FPRS 1
+#define __CONTEXT_ENABLE_VRS 1
+
+#ifdef __ASSUME_SWAPCONTEXT_SYSCALL
+ .section ".text";
+ENTRY (__swapcontext)
+ li 5,_UC_SIZE_2_3_4;
+ DO_CALL (SYS_ify (swapcontext));
+ bso- cr0,1f
+/* the kernel does not set the return code for the success case */
+ li r3,0
+ blr
+1:
+ b __syscall_error@local
+END(__swapcontext)
+#else
+# include "swapcontext-common.S"
+#endif
+
+versioned_symbol (libc, __swapcontext, swapcontext, GLIBC_2_3_4)
+
+#if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)
+
+ compat_text_section
+
+#undef __CONTEXT_FUNC_NAME
+#define __CONTEXT_FUNC_NAME __novec_swapcontext
+#undef __CONTEXT_ENABLE_VRS
+
+#include "swapcontext-common.S"
+
+ .previous
+
+compat_symbol (libc, __novec_swapcontext, swapcontext, GLIBC_2_3_3)
+
+#endif
+
+#if SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_3_3)
+
+#define _ERRNO_H 1
+#include <bits/errno.h>
+
+ compat_text_section
+ENTRY (__swapcontext_stub)
+ li r3,ENOSYS
+ b __syscall_error@local
+END (__swapcontext_stub)
+ .previous
+
+compat_symbol (libc, __swapcontext_stub, swapcontext, GLIBC_2_1)
+
+#endif
diff -urN libc24-cvstip-20051206/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S libc24/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S
--- libc24-cvstip-20051206/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S Wed Dec 31 18:00:00 1969
+++ libc24/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S Wed Dec 07 21:53:29 2005
@@ -0,0 +1,276 @@
+/* Save current context, powerpc32 common.
+ Copyright (C) 2005 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* This is the common implementation of getcontext for powerpc32.
+ It not complete in itself should be included in to a framework that
+ defines:
+ __CONTEXT_FUNC_NAME
+ and if appropriate:
+ __CONTEXT_ENABLE_FPRS
+ __CONTEXT_ENABLE_VRS
+ Any archecture that implements the Vector unit is assumed to also
+ implement the floating unit. */
+
+#ifdef __CONTEXT_ENABLE_VRS
+ .machine "altivec"
+#endif
+ENTRY(__CONTEXT_FUNC_NAME)
+ stwu r1,-16(r1)
+/* Insure that the _UC_REGS start on a quadword boundary. */
+ stw r3,_FRAME_PARM_SAVE1(r1)
+ addi r3,r3,_UC_REG_SPACE+12
+ clrrwi r3,r3,4
+
+/* Save the general purpose registers */
+ stw r0,_UC_GREGS+(PT_R0*4)(r3)
+ mflr r0
+ stw r2,_UC_GREGS+(PT_R2*4)(r3)
+ stw r4,_UC_GREGS+(PT_R4*4)(r3)
+/* Set the callers LR_SAVE, and the ucontext LR and NIP to the callers
+ return address. */
+ stw r0,_UC_GREGS+(PT_LNK*4)(r3)
+ stw r0,_UC_GREGS+(PT_NIP*4)(r3)
+ stw r0,_FRAME_LR_SAVE+16(r1)
+ stw r5,_UC_GREGS+(PT_R5*4)(r3)
+ stw r6,_UC_GREGS+(PT_R6*4)(r3)
+ stw r7,_UC_GREGS+(PT_R7*4)(r3)
+ stw r8,_UC_GREGS+(PT_R8*4)(r3)
+ stw r9,_UC_GREGS+(PT_R9*4)(r3)
+ stw r10,_UC_GREGS+(PT_R10*4)(r3)
+ stw r11,_UC_GREGS+(PT_R11*4)(r3)
+ stw r12,_UC_GREGS+(PT_R12*4)(r3)
+ stw r13,_UC_GREGS+(PT_R13*4)(r3)
+ stw r14,_UC_GREGS+(PT_R14*4)(r3)
+ stw r15,_UC_GREGS+(PT_R15*4)(r3)
+ stw r16,_UC_GREGS+(PT_R16*4)(r3)
+ stw r17,_UC_GREGS+(PT_R17*4)(r3)
+ stw r18,_UC_GREGS+(PT_R18*4)(r3)
+ stw r19,_UC_GREGS+(PT_R19*4)(r3)
+ stw r20,_UC_GREGS+(PT_R20*4)(r3)
+ stw r21,_UC_GREGS+(PT_R21*4)(r3)
+ stw r22,_UC_GREGS+(PT_R22*4)(r3)
+ stw r23,_UC_GREGS+(PT_R23*4)(r3)
+ stw r24,_UC_GREGS+(PT_R24*4)(r3)
+ stw r25,_UC_GREGS+(PT_R25*4)(r3)
+ stw r26,_UC_GREGS+(PT_R26*4)(r3)
+ stw r27,_UC_GREGS+(PT_R27*4)(r3)
+ stw r28,_UC_GREGS+(PT_R28*4)(r3)
+ stw r29,_UC_GREGS+(PT_R29*4)(r3)
+ stw r30,_UC_GREGS+(PT_R30*4)(r3)
+ stw r31,_UC_GREGS+(PT_R31*4)(r3)
+/* Save the value of R1. We had to push the stack before we
+ had the address of uc_reg_space. So compute the address of
+ the callers stack pointer and save it as R1. */
+ addi r8,r1,16
+ li r0,0
+/* Save the count, exception and condition registers. */
+ mfctr r11
+ mfxer r10
+ mfcr r9
+ stw r8,_UC_GREGS+(PT_R1*4)(r3)
+ stw r11,_UC_GREGS+(PT_CTR*4)(r3)
+ stw r10,_UC_GREGS+(PT_XER*4)(r3)
+ stw r9,_UC_GREGS+(PT_CCR*4)(r3)
+/* Set the return value of getcontext to "success". R3 is the only
+ register whose value is not preserved in the saved context. */
+ stw r0,_UC_GREGS+(PT_R3*4)(r3)
+
+/* Zero fill fields that can't be set in user state. */
+ stw r0,_UC_GREGS+(PT_MSR*4)(r3)
+ stw r0,_UC_GREGS+(PT_MQ*4)(r3)
+
+#ifdef __CONTEXT_ENABLE_FPRS
+/* Save the floating-point registers */
+ stfd fp0,_UC_FREGS+(0*8)(r3)
+ stfd fp1,_UC_FREGS+(1*8)(r3)
+ stfd fp2,_UC_FREGS+(2*8)(r3)
+ stfd fp3,_UC_FREGS+(3*8)(r3)
+ stfd fp4,_UC_FREGS+(4*8)(r3)
+ stfd fp5,_UC_FREGS+(5*8)(r3)
+ stfd fp6,_UC_FREGS+(6*8)(r3)
+ stfd fp7,_UC_FREGS+(7*8)(r3)
+ stfd fp8,_UC_FREGS+(8*8)(r3)
+ stfd fp9,_UC_FREGS+(9*8)(r3)
+ stfd fp10,_UC_FREGS+(10*8)(r3)
+ stfd fp11,_UC_FREGS+(11*8)(r3)
+ stfd fp12,_UC_FREGS+(12*8)(r3)
+ stfd fp13,_UC_FREGS+(13*8)(r3)
+ stfd fp14,_UC_FREGS+(14*8)(r3)
+ stfd fp15,_UC_FREGS+(15*8)(r3)
+ stfd fp16,_UC_FREGS+(16*8)(r3)
+ stfd fp17,_UC_FREGS+(17*8)(r3)
+ stfd fp18,_UC_FREGS+(18*8)(r3)
+ stfd fp19,_UC_FREGS+(19*8)(r3)
+ stfd fp20,_UC_FREGS+(20*8)(r3)
+ stfd fp21,_UC_FREGS+(21*8)(r3)
+ stfd fp22,_UC_FREGS+(22*8)(r3)
+ stfd fp23,_UC_FREGS+(23*8)(r3)
+ stfd fp24,_UC_FREGS+(24*8)(r3)
+ stfd fp25,_UC_FREGS+(25*8)(r3)
+ stfd fp26,_UC_FREGS+(26*8)(r3)
+ stfd fp27,_UC_FREGS+(27*8)(r3)
+ stfd fp28,_UC_FREGS+(28*8)(r3)
+ stfd fp29,_UC_FREGS+(29*8)(r3)
+ mffs fp0
+ stfd fp30,_UC_FREGS+(30*8)(r3)
+ stfd fp31,_UC_FREGS+(31*8)(r3)
+ stfd fp0,_UC_FREGS+(32*8)(r3)
+
+#ifdef __CONTEXT_ENABLE_VRS
+#ifdef PIC
+ mflr r8
+# ifdef HAVE_ASM_PPC_REL16
+ bcl 20,31,1f
+1: mflr r7
+ addis r7,r7,_GLOBAL_OFFSET_TABLE_-1b@ha
+ addi r7,r7,_GLOBAL_OFFSET_TABLE_-1b@l
+# else
+ bl _GLOBAL_OFFSET_TABLE_@local-4
+ mflr r7
+# endif
+# ifdef SHARED
+ lwz r7,_rtld_global_ro@got(r7)
+ mtlr r8
+ lwz r7,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET(r7)
+# else
+ lwz r7,_dl_hwcap@got(r7)
+ mtlr r8
+ lwz r7,0(r7)
+# endif
+#else
+ lis r7,_dl_hwcap@ha
+ lwz r7,_dl_hwcap@l(r7)
+#endif
+ andis. r7,r7,(PPC_FEATURE_HAS_ALTIVEC >> 16)
+
+ la r10,(_UC_VREGS)(r3)
+ la r9,(_UC_VREGS+16)(r3)
+
+ beq 2f /* L(no_vec) */
+/* address of the combined VSCR/VSAVE quadword. */
+ la r8,(_UC_VREGS+512)(r3)
+
+/* Save the vector registers */
+ stvx v0,0,r10
+ stvx v1,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+/* We need to get the Vector Status and Control Register early to avoid
+ store order problems later with the VSAVE register that shares the
+ same quadword. */
+ mfvscr v0
+
+ stvx v2,0,r10
+ stvx v3,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v0,0,r8
+
+ stvx v4,0,r10
+ stvx v5,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v6,0,r10
+ stvx v7,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v8,0,r10
+ stvx v9,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v10,0,r10
+ stvx v11,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v12,0,r10
+ stvx v13,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v14,0,r10
+ stvx v15,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v16,0,r10
+ stvx v17,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v18,0,r10
+ stvx v19,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v20,0,r10
+ stvx v21,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v22,0,r10
+ stvx v23,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v24,0,r10
+ stvx v25,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v26,0,r10
+ stvx v27,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v28,0,r10
+ stvx v29,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ mfspr r0,VRSAVE
+ stvx v30,0,r10
+ stvx v31,0,r9
+
+ stw r0,0(r8)
+
+2: /* L(no_vec): */
+#endif
+#endif
+/* We need to set up parms and call sigprocmask which will clobber
+ volatile registers. So before the call we need to retrieve the
+ original ucontext ptr (parm1) from stack and store the UC_REGS_PTR
+ (current R3). */
+ lwz r12,_FRAME_PARM_SAVE1(r1)
+ li r4,0
+ stw r3,_UC_REGS_PTR(r12)
+ addi r5,r12,_UC_SIGMASK
+ li r3,SIG_BLOCK
+ bl __sigprocmask@local
+
+ lwz r0,_FRAME_LR_SAVE+16(r1)
+ addi r1,r1,16
+ mtlr r0
+ blr
+END(__CONTEXT_FUNC_NAME)
+
diff -urN libc24-cvstip-20051206/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S libc24/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S
--- libc24-cvstip-20051206/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S Fri Jun 17 18:09:36 2005
+++ libc24/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S Wed Dec 31 18:00:00 1969
@@ -1,400 +0,0 @@
-/* Save current context.
- Copyright (C) 2002, 2004 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, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#include <sysdep.h>
-#include <rtld-global-offsets.h>
-#include <shlib-compat.h>
-
-#define __ASSEMBLY__
-#include <asm/ptrace.h>
-#include "ucontext_i.h"
-
- .machine "altivec"
-ENTRY(__getcontext)
- stwu r1,-16(r1)
-/* Insure that the _UC_REGS start on a quadword boundary. */
- stw r3,_FRAME_PARM_SAVE1(r1)
- addi r3,r3,_UC_REG_SPACE+12
- clrrwi r3,r3,4
-
-/* Save the general purpose registers */
- stw r0,_UC_GREGS+(PT_R0*4)(r3)
- mflr r0
- stw r2,_UC_GREGS+(PT_R2*4)(r3)
- stw r4,_UC_GREGS+(PT_R4*4)(r3)
-/* Set the callers LR_SAVE, and the ucontext LR and NIP to the callers
- return address. */
- stw r0,_UC_GREGS+(PT_LNK*4)(r3)
- stw r0,_UC_GREGS+(PT_NIP*4)(r3)
- stw r0,_FRAME_LR_SAVE+16(r1)
- stw r5,_UC_GREGS+(PT_R5*4)(r3)
- stw r6,_UC_GREGS+(PT_R6*4)(r3)
- stw r7,_UC_GREGS+(PT_R7*4)(r3)
- stw r8,_UC_GREGS+(PT_R8*4)(r3)
- stw r9,_UC_GREGS+(PT_R9*4)(r3)
- stw r10,_UC_GREGS+(PT_R10*4)(r3)
- stw r11,_UC_GREGS+(PT_R11*4)(r3)
- stw r12,_UC_GREGS+(PT_R12*4)(r3)
- stw r13,_UC_GREGS+(PT_R13*4)(r3)
- stw r14,_UC_GREGS+(PT_R14*4)(r3)
- stw r15,_UC_GREGS+(PT_R15*4)(r3)
- stw r16,_UC_GREGS+(PT_R16*4)(r3)
- stw r17,_UC_GREGS+(PT_R17*4)(r3)
- stw r18,_UC_GREGS+(PT_R18*4)(r3)
- stw r19,_UC_GREGS+(PT_R19*4)(r3)
- stw r20,_UC_GREGS+(PT_R20*4)(r3)
- stw r21,_UC_GREGS+(PT_R21*4)(r3)
- stw r22,_UC_GREGS+(PT_R22*4)(r3)
- stw r23,_UC_GREGS+(PT_R23*4)(r3)
- stw r24,_UC_GREGS+(PT_R24*4)(r3)
- stw r25,_UC_GREGS+(PT_R25*4)(r3)
- stw r26,_UC_GREGS+(PT_R26*4)(r3)
- stw r27,_UC_GREGS+(PT_R27*4)(r3)
- stw r28,_UC_GREGS+(PT_R28*4)(r3)
- stw r29,_UC_GREGS+(PT_R29*4)(r3)
- stw r30,_UC_GREGS+(PT_R30*4)(r3)
- stw r31,_UC_GREGS+(PT_R31*4)(r3)
-/* Save the value of R1. We had to push the stack before we
- had the address of uc_reg_space. So compute the address of
- the callers stack pointer and save it as R1. */
- addi r8,r1,16
- li r0,0
-/* Save the count, exception and condition registers. */
- mfctr r11
- mfxer r10
- mfcr r9
- stw r8,_UC_GREGS+(PT_R1*4)(r3)
- stw r11,_UC_GREGS+(PT_CTR*4)(r3)
- stw r10,_UC_GREGS+(PT_XER*4)(r3)
- stw r9,_UC_GREGS+(PT_CCR*4)(r3)
-/* Set the return value of getcontext to "success". R3 is the only
- register whose value is not preserved in the saved context. */
- stw r0,_UC_GREGS+(PT_R3*4)(r3)
-
-/* Zero fill fields that can't be set in user state. */
- stw r0,_UC_GREGS+(PT_MSR*4)(r3)
- stw r0,_UC_GREGS+(PT_MQ*4)(r3)
-
-/* Save the floating-point registers */
- stfd fp0,_UC_FREGS+(0*8)(r3)
- stfd fp1,_UC_FREGS+(1*8)(r3)
- stfd fp2,_UC_FREGS+(2*8)(r3)
- stfd fp3,_UC_FREGS+(3*8)(r3)
- stfd fp4,_UC_FREGS+(4*8)(r3)
- stfd fp5,_UC_FREGS+(5*8)(r3)
- stfd fp6,_UC_FREGS+(6*8)(r3)
- stfd fp7,_UC_FREGS+(7*8)(r3)
- stfd fp8,_UC_FREGS+(8*8)(r3)
- stfd fp9,_UC_FREGS+(9*8)(r3)
- stfd fp10,_UC_FREGS+(10*8)(r3)
- stfd fp11,_UC_FREGS+(11*8)(r3)
- stfd fp12,_UC_FREGS+(12*8)(r3)
- stfd fp13,_UC_FREGS+(13*8)(r3)
- stfd fp14,_UC_FREGS+(14*8)(r3)
- stfd fp15,_UC_FREGS+(15*8)(r3)
- stfd fp16,_UC_FREGS+(16*8)(r3)
- stfd fp17,_UC_FREGS+(17*8)(r3)
- stfd fp18,_UC_FREGS+(18*8)(r3)
- stfd fp19,_UC_FREGS+(19*8)(r3)
- stfd fp20,_UC_FREGS+(20*8)(r3)
- stfd fp21,_UC_FREGS+(21*8)(r3)
- stfd fp22,_UC_FREGS+(22*8)(r3)
- stfd fp23,_UC_FREGS+(23*8)(r3)
- stfd fp24,_UC_FREGS+(24*8)(r3)
- stfd fp25,_UC_FREGS+(25*8)(r3)
- stfd fp26,_UC_FREGS+(26*8)(r3)
- stfd fp27,_UC_FREGS+(27*8)(r3)
- stfd fp28,_UC_FREGS+(28*8)(r3)
- stfd fp29,_UC_FREGS+(29*8)(r3)
- mffs fp0
- stfd fp30,_UC_FREGS+(30*8)(r3)
- stfd fp31,_UC_FREGS+(31*8)(r3)
- stfd fp0,_UC_FREGS+(32*8)(r3)
-
-#ifdef PIC
- mflr r8
-# ifdef HAVE_ASM_PPC_REL16
- bcl 20,31,1f
-1: mflr r7
- addis r7,r7,_GLOBAL_OFFSET_TABLE_-1b@ha
- addi r7,r7,_GLOBAL_OFFSET_TABLE_-1b@l
-# else
- bl _GLOBAL_OFFSET_TABLE_@local-4
- mflr r7
-# endif
-# ifdef SHARED
- lwz r7,_rtld_global_ro@got(r7)
- mtlr r8
- lwz r7,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET(r7)
-# else
- lwz r7,_dl_hwcap@got(r7)
- mtlr r8
- lwz r7,0(r7)
-# endif
-#else
- lis r7,_dl_hwcap@ha
- lwz r7,_dl_hwcap@l(r7)
-#endif
- andis. r7,r7,(PPC_FEATURE_HAS_ALTIVEC >> 16)
-
- la r10,(_UC_VREGS)(r3)
- la r9,(_UC_VREGS+16)(r3)
-
- beq L(no_vec)
-/* address of the combined VSCR/VSAVE quadword. */
- la r8,(_UC_VREGS+512)(r3)
-
-/* Save the vector registers */
- stvx v0,0,r10
- stvx v1,0,r9
- addi r10,r10,32
- addi r9,r9,32
-/* We need to get the Vector Status and Control Register early to avoid
- store order problems later with the VSAVE register that shares the
- same quadword. */
- mfvscr v0
-
- stvx v2,0,r10
- stvx v3,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v0,0,r8
-
- stvx v4,0,r10
- stvx v5,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v6,0,r10
- stvx v7,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v8,0,r10
- stvx v9,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v10,0,r10
- stvx v11,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v12,0,r10
- stvx v13,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v14,0,r10
- stvx v15,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v16,0,r10
- stvx v17,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v18,0,r10
- stvx v19,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v20,0,r10
- stvx v21,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v22,0,r10
- stvx v23,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v24,0,r10
- stvx v25,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v26,0,r10
- stvx v27,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v28,0,r10
- stvx v29,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- mfspr r0,VRSAVE
- stvx v30,0,r10
- stvx v31,0,r9
-
- stw r0,0(r8)
-
-L(no_vec):
-/* We need to set up parms and call sigprocmask which will clobber
- volatile registers. So before the call we need to retrieve the
- original ucontext ptr (parm1) from stack and store the UC_REGS_PTR
- (current R3). */
- lwz r12,_FRAME_PARM_SAVE1(r1)
- li r4,0
- stw r3,_UC_REGS_PTR(r12)
- addi r5,r12,_UC_SIGMASK
- li r3,SIG_BLOCK
- bl __sigprocmask@local
-
- lwz r0,_FRAME_LR_SAVE+16(r1)
- addi r1,r1,16
- mtlr r0
- blr
-END(__getcontext)
-
-versioned_symbol (libc, __getcontext, getcontext, GLIBC_2_3_4)
-
-#if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)
-
- compat_text_section
-ENTRY(__novec_getcontext)
- /*
- * Since we are not attempting to save the altivec registers,
- * there is no need to get the register storage space
- * aligned on a 16-byte boundary.
- */
- 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
- stwu r1,-16(r1)
- stw r0,20(r1)
- stw r0,_UC_GREGS+(PT_LNK*4)(r3)
- stw r0,_UC_GREGS+(PT_NIP*4)(r3)
- stw r2,_UC_GREGS+(PT_R2*4)(r3)
- stw r4,_UC_GREGS+(PT_R4*4)(r3)
- stw r5,_UC_GREGS+(PT_R5*4)(r3)
- stw r6,_UC_GREGS+(PT_R6*4)(r3)
- stw r7,_UC_GREGS+(PT_R7*4)(r3)
- stw r8,_UC_GREGS+(PT_R8*4)(r3)
- stw r9,_UC_GREGS+(PT_R9*4)(r3)
- stw r10,_UC_GREGS+(PT_R10*4)(r3)
- stw r11,_UC_GREGS+(PT_R11*4)(r3)
- stw r12,_UC_GREGS+(PT_R12*4)(r3)
- stw r13,_UC_GREGS+(PT_R13*4)(r3)
- stw r14,_UC_GREGS+(PT_R14*4)(r3)
- stw r15,_UC_GREGS+(PT_R15*4)(r3)
- stw r16,_UC_GREGS+(PT_R16*4)(r3)
- stw r17,_UC_GREGS+(PT_R17*4)(r3)
- stw r18,_UC_GREGS+(PT_R18*4)(r3)
- stw r19,_UC_GREGS+(PT_R19*4)(r3)
- stw r20,_UC_GREGS+(PT_R20*4)(r3)
- stw r21,_UC_GREGS+(PT_R21*4)(r3)
- stw r22,_UC_GREGS+(PT_R22*4)(r3)
- stw r23,_UC_GREGS+(PT_R23*4)(r3)
- stw r24,_UC_GREGS+(PT_R24*4)(r3)
- stw r25,_UC_GREGS+(PT_R25*4)(r3)
- stw r26,_UC_GREGS+(PT_R26*4)(r3)
- stw r27,_UC_GREGS+(PT_R27*4)(r3)
- stw r28,_UC_GREGS+(PT_R28*4)(r3)
- stw r29,_UC_GREGS+(PT_R29*4)(r3)
- stw r30,_UC_GREGS+(PT_R30*4)(r3)
- stw r31,_UC_GREGS+(PT_R31*4)(r3)
- mfctr r0
- stw r0,_UC_GREGS+(PT_CTR*4)(r3)
- mfxer r0
- stw r0,_UC_GREGS+(PT_XER*4)(r3)
- mfcr r0
- stw r0,_UC_GREGS+(PT_CCR*4)(r3)
-
- /* Set the return value of getcontext to "success". R3 is the only
- register whose value is not preserved in the saved context. */
- li r0,0
- stw r0,_UC_GREGS+(PT_R3*4)(r3)
-
- /* Zero fill fields that can't be set in user state. */
- stw r0,_UC_GREGS+(PT_MSR*4)(r3)
- stw r0,_UC_GREGS+(PT_MQ*4)(r3)
-
- /* Save the floating-point registers */
- stfd fp0,_UC_FREGS+(0*8)(r3)
- stfd fp1,_UC_FREGS+(1*8)(r3)
- stfd fp2,_UC_FREGS+(2*8)(r3)
- stfd fp3,_UC_FREGS+(3*8)(r3)
- stfd fp4,_UC_FREGS+(4*8)(r3)
- stfd fp5,_UC_FREGS+(5*8)(r3)
- stfd fp6,_UC_FREGS+(6*8)(r3)
- stfd fp7,_UC_FREGS+(7*8)(r3)
- stfd fp8,_UC_FREGS+(8*8)(r3)
- stfd fp9,_UC_FREGS+(9*8)(r3)
- stfd fp10,_UC_FREGS+(10*8)(r3)
- stfd fp11,_UC_FREGS+(11*8)(r3)
- stfd fp12,_UC_FREGS+(12*8)(r3)
- stfd fp13,_UC_FREGS+(13*8)(r3)
- stfd fp14,_UC_FREGS+(14*8)(r3)
- stfd fp15,_UC_FREGS+(15*8)(r3)
- stfd fp16,_UC_FREGS+(16*8)(r3)
- stfd fp17,_UC_FREGS+(17*8)(r3)
- stfd fp18,_UC_FREGS+(18*8)(r3)
- stfd fp19,_UC_FREGS+(19*8)(r3)
- stfd fp20,_UC_FREGS+(20*8)(r3)
- stfd fp21,_UC_FREGS+(21*8)(r3)
- stfd fp22,_UC_FREGS+(22*8)(r3)
- stfd fp23,_UC_FREGS+(23*8)(r3)
- stfd fp24,_UC_FREGS+(24*8)(r3)
- stfd fp25,_UC_FREGS+(25*8)(r3)
- stfd fp26,_UC_FREGS+(26*8)(r3)
- stfd fp27,_UC_FREGS+(27*8)(r3)
- stfd fp28,_UC_FREGS+(28*8)(r3)
- stfd fp29,_UC_FREGS+(29*8)(r3)
- mffs fp0
- stfd fp30,_UC_FREGS+(30*8)(r3)
- stfd fp31,_UC_FREGS+(31*8)(r3)
- stfd fp0,_UC_FREGS+(32*8)(r3)
-
- addi r5,r3,_UC_SIGMASK - _UC_REG_SPACE
- li r4,0
- li r3,SIG_BLOCK
- bl __sigprocmask@local
-
- lwz r0,20(r1)
- addi r1,r1,16
- mtlr r0
- blr
-END(__novec_getcontext)
- .previous
-
-compat_symbol (libc, __novec_getcontext, getcontext, GLIBC_2_3_3)
-
-#endif
-
-#if SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_3_3)
-
-#define _ERRNO_H 1
-#include <bits/errno.h>
-
- compat_text_section
-ENTRY (__getcontext_stub)
- li r3,ENOSYS
- b __syscall_error@local
-END (__getcontext_stub)
- .previous
-
-compat_symbol (libc, __getcontext_stub, getcontext, GLIBC_2_1)
-
-#endif
diff -urN libc24-cvstip-20051206/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S libc24/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S
--- libc24-cvstip-20051206/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S Wed Dec 31 18:00:00 1969
+++ libc24/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S Wed Dec 07 21:59:10 2005
@@ -0,0 +1,282 @@
+/* Jump to a new context powerpc32 common.
+ Copyright (C) 2005 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* This is the common implementation of setcontext for powerpc32.
+ It not complete in itself should be included in to a framework that
+ defines:
+ __CONTEXT_FUNC_NAME
+ and if appropriate:
+ __CONTEXT_ENABLE_FPRS
+ __CONTEXT_ENABLE_VRS
+ Any archecture that implements the Vector unit is assumed to also
+ implement the floating unit. */
+
+#ifdef __CONTEXT_ENABLE_VRS
+ .machine "altivec"
+#endif
+ENTRY(__CONTEXT_FUNC_NAME)
+ mflr r0
+ stwu r1,-16(r1)
+ stw r0,20(r1)
+ stw r31,12(r1)
+ lwz r31,_UC_REGS_PTR(r3)
+
+ /*
+ * If this ucontext refers to the point where we were interrupted
+ * by a signal, we have to use the rt_sigreturn system call to
+ * return to the context so we get both LR and CTR restored.
+ *
+ * Otherwise, the context we are restoring is either just after
+ * a procedure call (getcontext/swapcontext) or at the beginning
+ * of a procedure call (makecontext), so we don't need to restore
+ * r0, xer, ctr. We don't restore r2 since it will be used as
+ * the TLS pointer.
+ */
+ lwz r0,_UC_GREGS+(PT_MSR*4)(r31)
+ cmpwi r0,0
+ bne 4f /* L(do_sigret) */
+
+ /* Restore the signal mask */
+ li r5,0
+ addi r4,r3,_UC_SIGMASK
+ li r3,SIG_SETMASK
+ bl __sigprocmask@local
+ cmpwi r3,0
+ bne 3f /* L(error_exit) */
+
+#ifdef __CONTEXT_ENABLE_FPRS
+#ifdef __CONTEXT_ENABLE_VRS
+#ifdef PIC
+ mflr r8
+# ifdef HAVE_ASM_PPC_REL16
+ bcl 20,31,1f
+1: mflr r7
+ addis r7,r7,_GLOBAL_OFFSET_TABLE_-1b@ha
+ addi r7,r7,_GLOBAL_OFFSET_TABLE_-1b@l
+# else
+ bl _GLOBAL_OFFSET_TABLE_@local-4
+ mflr r7
+# endif
+# ifdef SHARED
+ lwz r7,_rtld_global_ro@got(r7)
+ mtlr r8
+ lwz r7,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET(r7)
+# else
+ lwz r7,_dl_hwcap@got(r7)
+ mtlr r8
+ lwz r7,0(r7)
+# endif
+#else
+ lis r7,_dl_hwcap@ha
+ lwz r7,_dl_hwcap@l(r7)
+#endif
+ andis. r7,r7,(PPC_FEATURE_HAS_ALTIVEC >> 16)
+ la r10,(_UC_VREGS)(r31)
+ beq 2f /* L(has_no_vec) */
+
+ lwz r0,(32*16)(r10)
+ li r9,(32*16)
+ cmpwi r0,0
+ mtspr VRSAVE,r0
+ beq 2f /* L(has_no_vec) */
+
+ lvx v19,r9,r10
+ la r9,(16)(r10)
+
+ lvx v0,0,r10
+ lvx v1,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ mtvscr v19
+ lvx v2,0,r10
+ lvx v3,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v4,0,r10
+ lvx v5,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v6,0,r10
+ lvx v7,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v8,0,r10
+ lvx v9,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v10,0,r10
+ lvx v11,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v12,0,r10
+ lvx v13,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v14,0,r10
+ lvx v15,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v16,0,r10
+ lvx v17,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v18,0,r10
+ lvx v19,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v20,0,r10
+ lvx v21,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v22,0,r10
+ lvx v23,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v24,0,r10
+ lvx v25,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v26,0,r10
+ lvx v27,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v28,0,r10
+ lvx v29,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v30,0,r10
+ lvx v31,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v10,0,r10
+ lvx v11,0,r9
+
+2: /* L(has_no_vec): */
+#endif /* __CONTEXT_ENABLE_VRS */
+ /* Restore the floating-point registers */
+ lfd fp31,_UC_FREGS+(32*8)(r31)
+ lfd fp0,_UC_FREGS+(0*8)(r31)
+ mtfsf 0xff,fp31
+ lfd fp1,_UC_FREGS+(1*8)(r31)
+ lfd fp2,_UC_FREGS+(2*8)(r31)
+ lfd fp3,_UC_FREGS+(3*8)(r31)
+ lfd fp4,_UC_FREGS+(4*8)(r31)
+ lfd fp5,_UC_FREGS+(5*8)(r31)
+ lfd fp6,_UC_FREGS+(6*8)(r31)
+ lfd fp7,_UC_FREGS+(7*8)(r31)
+ lfd fp8,_UC_FREGS+(8*8)(r31)
+ lfd fp9,_UC_FREGS+(9*8)(r31)
+ lfd fp10,_UC_FREGS+(10*8)(r31)
+ lfd fp11,_UC_FREGS+(11*8)(r31)
+ lfd fp12,_UC_FREGS+(12*8)(r31)
+ lfd fp13,_UC_FREGS+(13*8)(r31)
+ lfd fp14,_UC_FREGS+(14*8)(r31)
+ lfd fp15,_UC_FREGS+(15*8)(r31)
+ lfd fp16,_UC_FREGS+(16*8)(r31)
+ lfd fp17,_UC_FREGS+(17*8)(r31)
+ lfd fp18,_UC_FREGS+(18*8)(r31)
+ lfd fp19,_UC_FREGS+(19*8)(r31)
+ lfd fp20,_UC_FREGS+(20*8)(r31)
+ lfd fp21,_UC_FREGS+(21*8)(r31)
+ lfd fp22,_UC_FREGS+(22*8)(r31)
+ lfd fp23,_UC_FREGS+(23*8)(r31)
+ lfd fp24,_UC_FREGS+(24*8)(r31)
+ lfd fp25,_UC_FREGS+(25*8)(r31)
+ lfd fp26,_UC_FREGS+(26*8)(r31)
+ lfd fp27,_UC_FREGS+(27*8)(r31)
+ lfd fp28,_UC_FREGS+(28*8)(r31)
+ lfd fp29,_UC_FREGS+(29*8)(r31)
+ lfd fp30,_UC_FREGS+(30*8)(r31)
+ lfd fp31,_UC_FREGS+(31*8)(r31)
+#endif /* __CONTEXT_ENABLE_FPRS */
+
+ /* Restore LR and CCR, and set CTR to the NIP value */
+ lwz r3,_UC_GREGS+(PT_LNK*4)(r31)
+ lwz r4,_UC_GREGS+(PT_NIP*4)(r31)
+ lwz r5,_UC_GREGS+(PT_CCR*4)(r31)
+ mtlr r3
+ mtctr r4
+ mtcr r5
+
+ /* Restore the general registers */
+ lwz r1,_UC_GREGS+(PT_R1*4)(r31)
+ lwz r3,_UC_GREGS+(PT_R3*4)(r31)
+ lwz r4,_UC_GREGS+(PT_R4*4)(r31)
+ lwz r5,_UC_GREGS+(PT_R5*4)(r31)
+ lwz r6,_UC_GREGS+(PT_R6*4)(r31)
+ lwz r7,_UC_GREGS+(PT_R7*4)(r31)
+ lwz r8,_UC_GREGS+(PT_R8*4)(r31)
+ lwz r9,_UC_GREGS+(PT_R9*4)(r31)
+ lwz r10,_UC_GREGS+(PT_R10*4)(r31)
+ lwz r11,_UC_GREGS+(PT_R11*4)(r31)
+ lwz r12,_UC_GREGS+(PT_R12*4)(r31)
+ lwz r13,_UC_GREGS+(PT_R13*4)(r31)
+ lwz r14,_UC_GREGS+(PT_R14*4)(r31)
+ lwz r15,_UC_GREGS+(PT_R15*4)(r31)
+ lwz r16,_UC_GREGS+(PT_R16*4)(r31)
+ lwz r17,_UC_GREGS+(PT_R17*4)(r31)
+ lwz r18,_UC_GREGS+(PT_R18*4)(r31)
+ lwz r19,_UC_GREGS+(PT_R19*4)(r31)
+ lwz r20,_UC_GREGS+(PT_R20*4)(r31)
+ lwz r21,_UC_GREGS+(PT_R21*4)(r31)
+ lwz r22,_UC_GREGS+(PT_R22*4)(r31)
+ lwz r23,_UC_GREGS+(PT_R23*4)(r31)
+ lwz r24,_UC_GREGS+(PT_R24*4)(r31)
+ lwz r25,_UC_GREGS+(PT_R25*4)(r31)
+ lwz r26,_UC_GREGS+(PT_R26*4)(r31)
+ lwz r27,_UC_GREGS+(PT_R27*4)(r31)
+ lwz r28,_UC_GREGS+(PT_R28*4)(r31)
+ lwz r29,_UC_GREGS+(PT_R29*4)(r31)
+ lwz r30,_UC_GREGS+(PT_R30*4)(r31)
+ lwz r31,_UC_GREGS+(PT_R31*4)(r31)
+
+ bctr
+
+3: /* L(error_exit): */
+ lwz r31,12(r1)
+ lwz r0,20(r1)
+ addi r1,r1,16
+ mtlr r0
+ blr
+
+
+4: /* L(do_sigret): */
+ addi r1,r3,-0xd0
+ li r0,SYS_ify(rt_sigreturn)
+ sc
+ /* NOTREACHED */
+
+END (__CONTEXT_FUNC_NAME)
+
diff -urN libc24-cvstip-20051206/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S libc24/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S
--- libc24-cvstip-20051206/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S Fri Jun 17 18:09:36 2005
+++ libc24/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S Wed Dec 31 18:00:00 1969
@@ -1,421 +0,0 @@
-/* Jump to a new context.
- Copyright (C) 2002, 2004 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, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#include <sysdep.h>
-#include <rtld-global-offsets.h>
-#include <shlib-compat.h>
-
-#define __ASSEMBLY__
-#include <asm/ptrace.h>
-#include "ucontext_i.h"
-
- .machine "altivec"
-ENTRY(__setcontext)
- mflr r0
- stwu r1,-16(r1)
- stw r0,20(r1)
- stw r31,12(r1)
- lwz r31,_UC_REGS_PTR(r3)
-
- /*
- * If this ucontext refers to the point where we were interrupted
- * by a signal, we have to use the rt_sigreturn system call to
- * return to the context so we get both LR and CTR restored.
- *
- * Otherwise, the context we are restoring is either just after
- * a procedure call (getcontext/swapcontext) or at the beginning
- * of a procedure call (makecontext), so we don't need to restore
- * r0, xer, ctr. We don't restore r2 since it will be used as
- * the TLS pointer.
- */
- lwz r0,_UC_GREGS+(PT_MSR*4)(r31)
- cmpwi r0,0
- bne L(do_sigret)
-
- /* Restore the signal mask */
- li r5,0
- addi r4,r3,_UC_SIGMASK
- li r3,SIG_SETMASK
- bl __sigprocmask@local
- cmpwi r3,0
- bne L(error_exit)
-
-#ifdef PIC
- mflr r8
-# ifdef HAVE_ASM_PPC_REL16
- bcl 20,31,1f
-1: mflr r7
- addis r7,r7,_GLOBAL_OFFSET_TABLE_-1b@ha
- addi r7,r7,_GLOBAL_OFFSET_TABLE_-1b@l
-# else
- bl _GLOBAL_OFFSET_TABLE_@local-4
- mflr r7
-# endif
-# ifdef SHARED
- lwz r7,_rtld_global_ro@got(r7)
- mtlr r8
- lwz r7,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET(r7)
-# else
- lwz r7,_dl_hwcap@got(r7)
- mtlr r8
- lwz r7,0(r7)
-# endif
-#else
- lis r7,_dl_hwcap@ha
- lwz r7,_dl_hwcap@l(r7)
-#endif
- andis. r7,r7,(PPC_FEATURE_HAS_ALTIVEC >> 16)
- la r10,(_UC_VREGS)(r31)
- beq L(has_no_vec)
-
- lwz r0,(32*16)(r10)
- li r9,(32*16)
- cmpwi r0,0
- mtspr VRSAVE,r0
- beq L(has_no_vec)
-
- lvx v19,r9,r10
- la r9,(16)(r10)
-
- lvx v0,0,r10
- lvx v1,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- mtvscr v19
- lvx v2,0,r10
- lvx v3,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v4,0,r10
- lvx v5,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v6,0,r10
- lvx v7,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v8,0,r10
- lvx v9,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v10,0,r10
- lvx v11,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v12,0,r10
- lvx v13,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v14,0,r10
- lvx v15,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v16,0,r10
- lvx v17,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v18,0,r10
- lvx v19,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v20,0,r10
- lvx v21,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v22,0,r10
- lvx v23,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v24,0,r10
- lvx v25,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v26,0,r10
- lvx v27,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v28,0,r10
- lvx v29,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v30,0,r10
- lvx v31,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v10,0,r10
- lvx v11,0,r9
-
-L(has_no_vec):
- /* Restore the floating-point registers */
- lfd fp31,_UC_FREGS+(32*8)(r31)
- lfd fp0,_UC_FREGS+(0*8)(r31)
- mtfsf 0xff,fp31
- lfd fp1,_UC_FREGS+(1*8)(r31)
- lfd fp2,_UC_FREGS+(2*8)(r31)
- lfd fp3,_UC_FREGS+(3*8)(r31)
- lfd fp4,_UC_FREGS+(4*8)(r31)
- lfd fp5,_UC_FREGS+(5*8)(r31)
- lfd fp6,_UC_FREGS+(6*8)(r31)
- lfd fp7,_UC_FREGS+(7*8)(r31)
- lfd fp8,_UC_FREGS+(8*8)(r31)
- lfd fp9,_UC_FREGS+(9*8)(r31)
- lfd fp10,_UC_FREGS+(10*8)(r31)
- lfd fp11,_UC_FREGS+(11*8)(r31)
- lfd fp12,_UC_FREGS+(12*8)(r31)
- lfd fp13,_UC_FREGS+(13*8)(r31)
- lfd fp14,_UC_FREGS+(14*8)(r31)
- lfd fp15,_UC_FREGS+(15*8)(r31)
- lfd fp16,_UC_FREGS+(16*8)(r31)
- lfd fp17,_UC_FREGS+(17*8)(r31)
- lfd fp18,_UC_FREGS+(18*8)(r31)
- lfd fp19,_UC_FREGS+(19*8)(r31)
- lfd fp20,_UC_FREGS+(20*8)(r31)
- lfd fp21,_UC_FREGS+(21*8)(r31)
- lfd fp22,_UC_FREGS+(22*8)(r31)
- lfd fp23,_UC_FREGS+(23*8)(r31)
- lfd fp24,_UC_FREGS+(24*8)(r31)
- lfd fp25,_UC_FREGS+(25*8)(r31)
- lfd fp26,_UC_FREGS+(26*8)(r31)
- lfd fp27,_UC_FREGS+(27*8)(r31)
- lfd fp28,_UC_FREGS+(28*8)(r31)
- lfd fp29,_UC_FREGS+(29*8)(r31)
- lfd fp30,_UC_FREGS+(30*8)(r31)
- lfd fp31,_UC_FREGS+(31*8)(r31)
-
- /* Restore LR and CCR, and set CTR to the NIP value */
- lwz r3,_UC_GREGS+(PT_LNK*4)(r31)
- lwz r4,_UC_GREGS+(PT_NIP*4)(r31)
- lwz r5,_UC_GREGS+(PT_CCR*4)(r31)
- mtlr r3
- mtctr r4
- mtcr r5
-
- /* Restore the general registers */
- lwz r1,_UC_GREGS+(PT_R1*4)(r31)
- lwz r3,_UC_GREGS+(PT_R3*4)(r31)
- lwz r4,_UC_GREGS+(PT_R4*4)(r31)
- lwz r5,_UC_GREGS+(PT_R5*4)(r31)
- lwz r6,_UC_GREGS+(PT_R6*4)(r31)
- lwz r7,_UC_GREGS+(PT_R7*4)(r31)
- lwz r8,_UC_GREGS+(PT_R8*4)(r31)
- lwz r9,_UC_GREGS+(PT_R9*4)(r31)
- lwz r10,_UC_GREGS+(PT_R10*4)(r31)
- lwz r11,_UC_GREGS+(PT_R11*4)(r31)
- lwz r12,_UC_GREGS+(PT_R12*4)(r31)
- lwz r13,_UC_GREGS+(PT_R13*4)(r31)
- lwz r14,_UC_GREGS+(PT_R14*4)(r31)
- lwz r15,_UC_GREGS+(PT_R15*4)(r31)
- lwz r16,_UC_GREGS+(PT_R16*4)(r31)
- lwz r17,_UC_GREGS+(PT_R17*4)(r31)
- lwz r18,_UC_GREGS+(PT_R18*4)(r31)
- lwz r19,_UC_GREGS+(PT_R19*4)(r31)
- lwz r20,_UC_GREGS+(PT_R20*4)(r31)
- lwz r21,_UC_GREGS+(PT_R21*4)(r31)
- lwz r22,_UC_GREGS+(PT_R22*4)(r31)
- lwz r23,_UC_GREGS+(PT_R23*4)(r31)
- lwz r24,_UC_GREGS+(PT_R24*4)(r31)
- lwz r25,_UC_GREGS+(PT_R25*4)(r31)
- lwz r26,_UC_GREGS+(PT_R26*4)(r31)
- lwz r27,_UC_GREGS+(PT_R27*4)(r31)
- lwz r28,_UC_GREGS+(PT_R28*4)(r31)
- lwz r29,_UC_GREGS+(PT_R29*4)(r31)
- lwz r30,_UC_GREGS+(PT_R30*4)(r31)
- lwz r31,_UC_GREGS+(PT_R31*4)(r31)
-
- bctr
-
-L(error_exit):
- lwz r31,12(r1)
- lwz r0,20(r1)
- addi r1,r1,16
- mtlr r0
- blr
-
-L(do_sigret):
- addi r1,r3,-0xd0
- li r0,SYS_ify(rt_sigreturn)
- sc
- /* NOTREACHED */
-
-END (__setcontext)
-
-versioned_symbol (libc, __setcontext, setcontext, GLIBC_2_3_4)
-
-#if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)
-
- compat_text_section
-ENTRY(__novec_setcontext)
- mflr r0
- stwu r1,-16(r1)
- stw r0,20(r1)
- stw r31,12(r1)
- lwz r31,_UC_REGS_PTR(r3)
-
- /*
- * If this ucontext refers to the point where we were interrupted
- * by a signal, we have to use the rt_sigreturn system call to
- * return to the context so we get both LR and CTR restored.
- *
- * Otherwise, the context we are restoring is either just after
- * a procedure call (getcontext/swapcontext) or at the beginning
- * of a procedure call (makecontext), so we don't need to restore
- * r0, xer, ctr. We don't restore r2 since it will be used as
- * the TLS pointer.
- */
- lwz r0,_UC_GREGS+(PT_MSR*4)(r31)
- cmpwi r0,0
- bne L(novec_do_sigret)
-
- /* Restore the signal mask */
- li r5,0
- addi r4,r3,_UC_SIGMASK
- li r3,SIG_SETMASK
- bl __sigprocmask@local
- cmpwi r3,0
- bne L(novec_error_exit)
-
- /* Restore the floating-point registers */
- lfd fp31,_UC_FREGS+(32*8)(r31)
- lfd fp0,_UC_FREGS+(0*8)(r31)
- mtfsf 0xff,fp31
- lfd fp1,_UC_FREGS+(1*8)(r31)
- lfd fp2,_UC_FREGS+(2*8)(r31)
- lfd fp3,_UC_FREGS+(3*8)(r31)
- lfd fp4,_UC_FREGS+(4*8)(r31)
- lfd fp5,_UC_FREGS+(5*8)(r31)
- lfd fp6,_UC_FREGS+(6*8)(r31)
- lfd fp7,_UC_FREGS+(7*8)(r31)
- lfd fp8,_UC_FREGS+(8*8)(r31)
- lfd fp9,_UC_FREGS+(9*8)(r31)
- lfd fp10,_UC_FREGS+(10*8)(r31)
- lfd fp11,_UC_FREGS+(11*8)(r31)
- lfd fp12,_UC_FREGS+(12*8)(r31)
- lfd fp13,_UC_FREGS+(13*8)(r31)
- lfd fp14,_UC_FREGS+(14*8)(r31)
- lfd fp15,_UC_FREGS+(15*8)(r31)
- lfd fp16,_UC_FREGS+(16*8)(r31)
- lfd fp17,_UC_FREGS+(17*8)(r31)
- lfd fp18,_UC_FREGS+(18*8)(r31)
- lfd fp19,_UC_FREGS+(19*8)(r31)
- lfd fp20,_UC_FREGS+(20*8)(r31)
- lfd fp21,_UC_FREGS+(21*8)(r31)
- lfd fp22,_UC_FREGS+(22*8)(r31)
- lfd fp23,_UC_FREGS+(23*8)(r31)
- lfd fp24,_UC_FREGS+(24*8)(r31)
- lfd fp25,_UC_FREGS+(25*8)(r31)
- lfd fp26,_UC_FREGS+(26*8)(r31)
- lfd fp27,_UC_FREGS+(27*8)(r31)
- lfd fp28,_UC_FREGS+(28*8)(r31)
- lfd fp29,_UC_FREGS+(29*8)(r31)
- lfd fp30,_UC_FREGS+(30*8)(r31)
- lfd fp31,_UC_FREGS+(31*8)(r31)
-
- /* Restore LR and CCR, and set CTR to the NIP value */
- lwz r3,_UC_GREGS+(PT_LNK*4)(r31)
- lwz r4,_UC_GREGS+(PT_NIP*4)(r31)
- lwz r5,_UC_GREGS+(PT_CCR*4)(r31)
- mtlr r3
- mtctr r4
- mtcr r5
-
- /* Restore the general registers */
- lwz r1,_UC_GREGS+(PT_R1*4)(r31)
- lwz r3,_UC_GREGS+(PT_R3*4)(r31)
- lwz r4,_UC_GREGS+(PT_R4*4)(r31)
- lwz r5,_UC_GREGS+(PT_R5*4)(r31)
- lwz r6,_UC_GREGS+(PT_R6*4)(r31)
- lwz r7,_UC_GREGS+(PT_R7*4)(r31)
- lwz r8,_UC_GREGS+(PT_R8*4)(r31)
- lwz r9,_UC_GREGS+(PT_R9*4)(r31)
- lwz r10,_UC_GREGS+(PT_R10*4)(r31)
- lwz r11,_UC_GREGS+(PT_R11*4)(r31)
- lwz r12,_UC_GREGS+(PT_R12*4)(r31)
- lwz r13,_UC_GREGS+(PT_R13*4)(r31)
- lwz r14,_UC_GREGS+(PT_R14*4)(r31)
- lwz r15,_UC_GREGS+(PT_R15*4)(r31)
- lwz r16,_UC_GREGS+(PT_R16*4)(r31)
- lwz r17,_UC_GREGS+(PT_R17*4)(r31)
- lwz r18,_UC_GREGS+(PT_R18*4)(r31)
- lwz r19,_UC_GREGS+(PT_R19*4)(r31)
- lwz r20,_UC_GREGS+(PT_R20*4)(r31)
- lwz r21,_UC_GREGS+(PT_R21*4)(r31)
- lwz r22,_UC_GREGS+(PT_R22*4)(r31)
- lwz r23,_UC_GREGS+(PT_R23*4)(r31)
- lwz r24,_UC_GREGS+(PT_R24*4)(r31)
- lwz r25,_UC_GREGS+(PT_R25*4)(r31)
- lwz r26,_UC_GREGS+(PT_R26*4)(r31)
- lwz r27,_UC_GREGS+(PT_R27*4)(r31)
- lwz r28,_UC_GREGS+(PT_R28*4)(r31)
- lwz r29,_UC_GREGS+(PT_R29*4)(r31)
- lwz r30,_UC_GREGS+(PT_R30*4)(r31)
- lwz r31,_UC_GREGS+(PT_R31*4)(r31)
-
- bctr
-
-L(novec_error_exit):
- lwz r31,12(r1)
- lwz r0,20(r1)
- addi r1,r1,16
- mtlr r0
- blr
-
-L(novec_do_sigret):
- addi r1,r3,-0xd0
- li r0,SYS_ify(rt_sigreturn)
- sc
- /* NOTREACHED */
-
-END (__novec_setcontext)
- .previous
-
-compat_symbol (libc, __novec_setcontext, setcontext, GLIBC_2_3_3)
-
-#endif
-
-#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_3)
-
-#define _ERRNO_H 1
-#include <bits/errno.h>
-
- compat_text_section
-ENTRY (__setcontext_stub)
- li r3,ENOSYS
- b __syscall_error@local
-END (__setcontext_stub)
- .previous
-
-compat_symbol (libc, __setcontext_stub, setcontext, GLIBC_2_0)
-
-#endif
diff -urN libc24-cvstip-20051206/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S libc24/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S
--- libc24-cvstip-20051206/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S Wed Dec 31 18:00:00 1969
+++ libc24/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S Wed Dec 07 21:47:51 2005
@@ -0,0 +1,508 @@
+/* Save current context and jump to a new context.
+ Copyright (C) 2005 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* This is the common implementation of setcontext for powerpc32.
+ It not complete in itself should be included in to a framework that
+ defines:
+ __CONTEXT_FUNC_NAME
+ and if appropriate:
+ __CONTEXT_ENABLE_FPRS
+ __CONTEXT_ENABLE_VRS
+ Any archecture that implements the Vector unit is assumed to also
+ implement the floating unit. */
+
+#ifdef __CONTEXT_ENABLE_VRS
+ .machine "altivec"
+#endif
+ENTRY(__CONTEXT_FUNC_NAME)
+ stwu r1,-16(r1)
+/* Insure that the _UC_REGS start on a quadword boundary. */
+ stw r3,_FRAME_PARM_SAVE1(r1)
+ addi r3,r3,_UC_REG_SPACE+12
+ stw r4,_FRAME_PARM_SAVE2(r1) /* new context pointer */
+ clrrwi r3,r3,4
+
+/* Save the general purpose registers */
+ stw r0,_UC_GREGS+(PT_R0*4)(r3)
+ mflr r0
+ stw r2,_UC_GREGS+(PT_R2*4)(r3)
+ stw r4,_UC_GREGS+(PT_R4*4)(r3)
+/* Set the callers LR_SAVE, and the ucontext LR and NIP to the callers
+ return address. */
+ stw r0,_UC_GREGS+(PT_LNK*4)(r3)
+ stw r0,_UC_GREGS+(PT_NIP*4)(r3)
+ stw r0,_FRAME_LR_SAVE+16(r1)
+ stw r5,_UC_GREGS+(PT_R5*4)(r3)
+ stw r6,_UC_GREGS+(PT_R6*4)(r3)
+ stw r7,_UC_GREGS+(PT_R7*4)(r3)
+ stw r8,_UC_GREGS+(PT_R8*4)(r3)
+ stw r9,_UC_GREGS+(PT_R9*4)(r3)
+ stw r10,_UC_GREGS+(PT_R10*4)(r3)
+ stw r11,_UC_GREGS+(PT_R11*4)(r3)
+ stw r12,_UC_GREGS+(PT_R12*4)(r3)
+ stw r13,_UC_GREGS+(PT_R13*4)(r3)
+ stw r14,_UC_GREGS+(PT_R14*4)(r3)
+ stw r15,_UC_GREGS+(PT_R15*4)(r3)
+ stw r16,_UC_GREGS+(PT_R16*4)(r3)
+ stw r17,_UC_GREGS+(PT_R17*4)(r3)
+ stw r18,_UC_GREGS+(PT_R18*4)(r3)
+ stw r19,_UC_GREGS+(PT_R19*4)(r3)
+ stw r20,_UC_GREGS+(PT_R20*4)(r3)
+ stw r21,_UC_GREGS+(PT_R21*4)(r3)
+ stw r22,_UC_GREGS+(PT_R22*4)(r3)
+ stw r23,_UC_GREGS+(PT_R23*4)(r3)
+ stw r24,_UC_GREGS+(PT_R24*4)(r3)
+ stw r25,_UC_GREGS+(PT_R25*4)(r3)
+ stw r26,_UC_GREGS+(PT_R26*4)(r3)
+ stw r27,_UC_GREGS+(PT_R27*4)(r3)
+ stw r28,_UC_GREGS+(PT_R28*4)(r3)
+ stw r29,_UC_GREGS+(PT_R29*4)(r3)
+ stw r30,_UC_GREGS+(PT_R30*4)(r3)
+ stw r31,_UC_GREGS+(PT_R31*4)(r3)
+
+/* Save the value of R1. We had to push the stack before we
+ had the address of uc_reg_space. So compute the address of
+ the callers stack pointer and save it as R1. */
+ addi r8,r1,16
+ li r0,0
+/* Save the count, exception and condition registers. */
+ mfctr r11
+ mfxer r10
+ mfcr r9
+ stw r8,_UC_GREGS+(PT_R1*4)(r3)
+ stw r11,_UC_GREGS+(PT_CTR*4)(r3)
+ stw r10,_UC_GREGS+(PT_XER*4)(r3)
+ stw r9,_UC_GREGS+(PT_CCR*4)(r3)
+/* Set the return value of getcontext to "success". R3 is the only
+ register whose value is not preserved in the saved context. */
+ stw r0,_UC_GREGS+(PT_R3*4)(r3)
+
+ /* Zero fill fields that can't be set in user state. */
+ stw r0,_UC_GREGS+(PT_MSR*4)(r3)
+ stw r0,_UC_GREGS+(PT_MQ*4)(r3)
+
+#ifdef __CONTEXT_ENABLE_FPRS
+ /* Save the floating-point registers */
+ stfd fp0,_UC_FREGS+(0*8)(r3)
+ stfd fp1,_UC_FREGS+(1*8)(r3)
+ stfd fp2,_UC_FREGS+(2*8)(r3)
+ stfd fp3,_UC_FREGS+(3*8)(r3)
+ stfd fp4,_UC_FREGS+(4*8)(r3)
+ stfd fp5,_UC_FREGS+(5*8)(r3)
+ stfd fp6,_UC_FREGS+(6*8)(r3)
+ stfd fp7,_UC_FREGS+(7*8)(r3)
+ stfd fp8,_UC_FREGS+(8*8)(r3)
+ stfd fp9,_UC_FREGS+(9*8)(r3)
+ stfd fp10,_UC_FREGS+(10*8)(r3)
+ stfd fp11,_UC_FREGS+(11*8)(r3)
+ stfd fp12,_UC_FREGS+(12*8)(r3)
+ stfd fp13,_UC_FREGS+(13*8)(r3)
+ stfd fp14,_UC_FREGS+(14*8)(r3)
+ stfd fp15,_UC_FREGS+(15*8)(r3)
+ stfd fp16,_UC_FREGS+(16*8)(r3)
+ stfd fp17,_UC_FREGS+(17*8)(r3)
+ stfd fp18,_UC_FREGS+(18*8)(r3)
+ stfd fp19,_UC_FREGS+(19*8)(r3)
+ stfd fp20,_UC_FREGS+(20*8)(r3)
+ stfd fp21,_UC_FREGS+(21*8)(r3)
+ stfd fp22,_UC_FREGS+(22*8)(r3)
+ stfd fp23,_UC_FREGS+(23*8)(r3)
+ stfd fp24,_UC_FREGS+(24*8)(r3)
+ stfd fp25,_UC_FREGS+(25*8)(r3)
+ stfd fp26,_UC_FREGS+(26*8)(r3)
+ stfd fp27,_UC_FREGS+(27*8)(r3)
+ stfd fp28,_UC_FREGS+(28*8)(r3)
+ stfd fp29,_UC_FREGS+(29*8)(r3)
+ mffs fp0
+ stfd fp30,_UC_FREGS+(30*8)(r3)
+ stfd fp31,_UC_FREGS+(31*8)(r3)
+ stfd fp0,_UC_FREGS+(32*8)(r3)
+
+#ifdef __CONTEXT_ENABLE_VRS
+#ifdef PIC
+ mflr r8
+# ifdef HAVE_ASM_PPC_REL16
+ bcl 20,31,1f
+1: mflr r7
+ addis r7,r7,_GLOBAL_OFFSET_TABLE_-1b@ha
+ addi r7,r7,_GLOBAL_OFFSET_TABLE_-1b@l
+# else
+ bl _GLOBAL_OFFSET_TABLE_@local-4
+ mflr r7
+# endif
+# ifdef SHARED
+ lwz r7,_rtld_global_ro@got(r7)
+ mtlr r8
+ lwz r7,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET(r7)
+# else
+ lwz r7,_dl_hwcap@got(r7)
+ mtlr r8
+ lwz r7,0(r7)
+# endif
+#else
+ lis r7,_dl_hwcap@ha
+ lwz r7,_dl_hwcap@l(r7)
+#endif
+ andis. r7,r7,(PPC_FEATURE_HAS_ALTIVEC >> 16)
+
+ la r10,(_UC_VREGS)(r3)
+ la r9,(_UC_VREGS+16)(r3)
+
+/* beq L(no_vec)*/
+ beq 2f
+/* address of the combined VSCR/VSAVE quadword. */
+ la r8,(_UC_VREGS+512)(r3)
+
+/* Save the vector registers */
+ stvx v0,0,r10
+ stvx v1,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+/* We need to get the Vector Status and Control Register early to avoid
+ store order problems later with the VSAVE register that shares the
+ same quadword. */
+ mfvscr v0
+
+ stvx v2,0,r10
+ stvx v3,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v0,0,r8
+
+ stvx v4,0,r10
+ stvx v5,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v6,0,r10
+ stvx v7,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v8,0,r10
+ stvx v9,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v10,0,r10
+ stvx v11,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v12,0,r10
+ stvx v13,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v14,0,r10
+ stvx v15,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v16,0,r10
+ stvx v17,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v18,0,r10
+ stvx v19,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v20,0,r10
+ stvx v21,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v22,0,r10
+ stvx v23,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v24,0,r10
+ stvx v25,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v26,0,r10
+ stvx v27,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ stvx v28,0,r10
+ stvx v29,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ mfvscr v0
+ stvx v30,0,r10
+ stvx v31,0,r9
+ stw r0,0(r8)
+
+2: /*L(no_vec):*/
+#endif /* __CONTEXT_ENABLE_VRS */
+#endif /* __CONTEXT_ENABLE_FPRS */
+
+/* Restore ucontext (parm1) from stack. */
+ lwz r12,_FRAME_PARM_SAVE1(r1)
+ li r4,0
+ stw r3,_UC_REGS_PTR(r12)
+ addi r5,r12,_UC_SIGMASK
+ li r3,SIG_SETMASK
+ bl __sigprocmask@local
+ cmpwi r3,0
+ bne 3f /* L(error_exit) */
+
+ /*
+ * If the new ucontext refers to the point where we were interrupted
+ * by a signal, we have to use the rt_sigreturn system call to
+ * return to the context so we get both LR and CTR restored.
+ *
+ * Otherwise, the context we are restoring is either just after
+ * a procedure call (getcontext/swapcontext) or at the beginning
+ * of a procedure call (makecontext), so we don't need to restore
+ * r0, xer, ctr. We don't restore r2 since it will be used as
+ * the TLS pointer.
+ */
+ lwz r4,_FRAME_PARM_SAVE2(r1)
+ lwz r31,_UC_REGS_PTR(r4)
+ lwz r0,_UC_GREGS+(PT_MSR*4)(r31)
+ cmpwi r0,0
+ bne 4f /* L(do_sigret) */
+
+#ifdef __CONTEXT_ENABLE_FPRS
+#ifdef __CONTEXT_ENABLE_VRS
+
+#ifdef PIC
+ mflr r8
+# ifdef HAVE_ASM_PPC_REL16
+ bcl 20,31,5f
+5: mflr r7
+ addis r7,r7,_GLOBAL_OFFSET_TABLE_-1b@ha
+ addi r7,r7,_GLOBAL_OFFSET_TABLE_-1b@l
+# else
+ bl _GLOBAL_OFFSET_TABLE_@local-4
+ mflr r7
+# endif
+# ifdef SHARED
+ lwz r7,_rtld_global_ro@got(r7)
+ mtlr r8
+ lwz r7,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET(r7)
+# else
+ lwz r7,_dl_hwcap@got(r7)
+ mtlr r8
+ lwz r7,0(r7)
+# endif
+#else
+ lis r7,_dl_hwcap@ha
+ lwz r7,_dl_hwcap@l(r7)
+#endif
+ andis. r7,r7,(PPC_FEATURE_HAS_ALTIVEC >> 16)
+ la r10,(_UC_VREGS)(r31)
+ beq 6f /* L(has_no_vec) */
+
+ lwz r0,(32*16)(r10)
+ li r9,(32*16)
+ cmpwi r0,0
+ mtspr VRSAVE,r0
+ beq 6f /* L(has_no_vec) */
+
+ lvx v19,r9,r10
+ la r9,(16)(r10)
+
+ lvx v0,0,r10
+ lvx v1,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ mtvscr v19
+ lvx v2,0,r10
+ lvx v3,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v4,0,r10
+ lvx v5,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v6,0,r10
+ lvx v7,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v8,0,r10
+ lvx v9,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v10,0,r10
+ lvx v11,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v12,0,r10
+ lvx v13,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v14,0,r10
+ lvx v15,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v16,0,r10
+ lvx v17,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v18,0,r10
+ lvx v19,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v20,0,r10
+ lvx v21,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v22,0,r10
+ lvx v23,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v24,0,r10
+ lvx v25,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v26,0,r10
+ lvx v27,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v28,0,r10
+ lvx v29,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v30,0,r10
+ lvx v31,0,r9
+ addi r10,r10,32
+ addi r9,r9,32
+
+ lvx v10,0,r10
+ lvx v11,0,r9
+
+6: /* L(has_no_vec): */
+#endif /* __CONTEXT_ENABLE_VRS */
+ /* Restore the floating-point registers */
+ lfd fp31,_UC_FREGS+(32*8)(r31)
+ lfd fp0,_UC_FREGS+(0*8)(r31)
+ mtfsf 0xff,fp31
+ lfd fp1,_UC_FREGS+(1*8)(r31)
+ lfd fp2,_UC_FREGS+(2*8)(r31)
+ lfd fp3,_UC_FREGS+(3*8)(r31)
+ lfd fp4,_UC_FREGS+(4*8)(r31)
+ lfd fp5,_UC_FREGS+(5*8)(r31)
+ lfd fp6,_UC_FREGS+(6*8)(r31)
+ lfd fp7,_UC_FREGS+(7*8)(r31)
+ lfd fp8,_UC_FREGS+(8*8)(r31)
+ lfd fp9,_UC_FREGS+(9*8)(r31)
+ lfd fp10,_UC_FREGS+(10*8)(r31)
+ lfd fp11,_UC_FREGS+(11*8)(r31)
+ lfd fp12,_UC_FREGS+(12*8)(r31)
+ lfd fp13,_UC_FREGS+(13*8)(r31)
+ lfd fp14,_UC_FREGS+(14*8)(r31)
+ lfd fp15,_UC_FREGS+(15*8)(r31)
+ lfd fp16,_UC_FREGS+(16*8)(r31)
+ lfd fp17,_UC_FREGS+(17*8)(r31)
+ lfd fp18,_UC_FREGS+(18*8)(r31)
+ lfd fp19,_UC_FREGS+(19*8)(r31)
+ lfd fp20,_UC_FREGS+(20*8)(r31)
+ lfd fp21,_UC_FREGS+(21*8)(r31)
+ lfd fp22,_UC_FREGS+(22*8)(r31)
+ lfd fp23,_UC_FREGS+(23*8)(r31)
+ lfd fp24,_UC_FREGS+(24*8)(r31)
+ lfd fp25,_UC_FREGS+(25*8)(r31)
+ lfd fp26,_UC_FREGS+(26*8)(r31)
+ lfd fp27,_UC_FREGS+(27*8)(r31)
+ lfd fp28,_UC_FREGS+(28*8)(r31)
+ lfd fp29,_UC_FREGS+(29*8)(r31)
+ lfd fp30,_UC_FREGS+(30*8)(r31)
+ lfd fp31,_UC_FREGS+(31*8)(r31)
+#endif /* __CONTEXT_ENABLE_FPRS */
+
+ /* Restore LR and CCR, and set CTR to the NIP value */
+ lwz r3,_UC_GREGS+(PT_LNK*4)(r31)
+ lwz r4,_UC_GREGS+(PT_NIP*4)(r31)
+ lwz r5,_UC_GREGS+(PT_CCR*4)(r31)
+ mtlr r3
+ mtctr r4
+ mtcr r5
+
+ /* Restore the general registers */
+ lwz r1,_UC_GREGS+(PT_R1*4)(r31)
+ lwz r3,_UC_GREGS+(PT_R3*4)(r31)
+ lwz r4,_UC_GREGS+(PT_R4*4)(r31)
+ lwz r5,_UC_GREGS+(PT_R5*4)(r31)
+ lwz r6,_UC_GREGS+(PT_R6*4)(r31)
+ lwz r7,_UC_GREGS+(PT_R7*4)(r31)
+ lwz r8,_UC_GREGS+(PT_R8*4)(r31)
+ lwz r9,_UC_GREGS+(PT_R9*4)(r31)
+ lwz r10,_UC_GREGS+(PT_R10*4)(r31)
+ lwz r11,_UC_GREGS+(PT_R11*4)(r31)
+ lwz r12,_UC_GREGS+(PT_R12*4)(r31)
+ lwz r13,_UC_GREGS+(PT_R13*4)(r31)
+ lwz r14,_UC_GREGS+(PT_R14*4)(r31)
+ lwz r15,_UC_GREGS+(PT_R15*4)(r31)
+ lwz r16,_UC_GREGS+(PT_R16*4)(r31)
+ lwz r17,_UC_GREGS+(PT_R17*4)(r31)
+ lwz r18,_UC_GREGS+(PT_R18*4)(r31)
+ lwz r19,_UC_GREGS+(PT_R19*4)(r31)
+ lwz r20,_UC_GREGS+(PT_R20*4)(r31)
+ lwz r21,_UC_GREGS+(PT_R21*4)(r31)
+ lwz r22,_UC_GREGS+(PT_R22*4)(r31)
+ lwz r23,_UC_GREGS+(PT_R23*4)(r31)
+ lwz r24,_UC_GREGS+(PT_R24*4)(r31)
+ lwz r25,_UC_GREGS+(PT_R25*4)(r31)
+ lwz r26,_UC_GREGS+(PT_R26*4)(r31)
+ lwz r27,_UC_GREGS+(PT_R27*4)(r31)
+ lwz r28,_UC_GREGS+(PT_R28*4)(r31)
+ lwz r29,_UC_GREGS+(PT_R29*4)(r31)
+ lwz r30,_UC_GREGS+(PT_R30*4)(r31)
+ lwz r31,_UC_GREGS+(PT_R31*4)(r31)
+
+ bctr
+
+3:/*L(error_exit):*/
+ lwz r0,_FRAME_LR_SAVE+16(r1)
+ addi r1,r1,16
+ mtlr r0
+ blr
+
+4:/*L(do_sigret):*/
+ addi r1,r4,-0xd0
+ li r0,SYS_ify(rt_sigreturn)
+ sc
+ /* NOTREACHED */
+
+END(__CONTEXT_FUNC_NAME)
+
diff -urN libc24-cvstip-20051206/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S libc24/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S
--- libc24-cvstip-20051206/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S Fri Jun 17 18:09:36 2005
+++ libc24/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S Wed Dec 31 18:00:00 1969
@@ -1,729 +0,0 @@
-/* Save current context and jump to a new context.
- Copyright (C) 2002, 2004 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, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#include <sysdep.h>
-#include <rtld-global-offsets.h>
-#include <shlib-compat.h>
-
-#define __ASSEMBLY__
-#include <asm/ptrace.h>
-#include "ucontext_i.h"
-
- .machine "altivec"
-ENTRY(__swapcontext)
- stwu r1,-16(r1)
-/* Insure that the _UC_REGS start on a quadword boundary. */
- stw r3,_FRAME_PARM_SAVE1(r1)
- addi r3,r3,_UC_REG_SPACE+12
- stw r4,_FRAME_PARM_SAVE2(r1) /* new context pointer */
- clrrwi r3,r3,4
-
-/* Save the general purpose registers */
- stw r0,_UC_GREGS+(PT_R0*4)(r3)
- mflr r0
- stw r2,_UC_GREGS+(PT_R2*4)(r3)
- stw r4,_UC_GREGS+(PT_R4*4)(r3)
-/* Set the callers LR_SAVE, and the ucontext LR and NIP to the callers
- return address. */
- stw r0,_UC_GREGS+(PT_LNK*4)(r3)
- stw r0,_UC_GREGS+(PT_NIP*4)(r3)
- stw r0,_FRAME_LR_SAVE+16(r1)
- stw r5,_UC_GREGS+(PT_R5*4)(r3)
- stw r6,_UC_GREGS+(PT_R6*4)(r3)
- stw r7,_UC_GREGS+(PT_R7*4)(r3)
- stw r8,_UC_GREGS+(PT_R8*4)(r3)
- stw r9,_UC_GREGS+(PT_R9*4)(r3)
- stw r10,_UC_GREGS+(PT_R10*4)(r3)
- stw r11,_UC_GREGS+(PT_R11*4)(r3)
- stw r12,_UC_GREGS+(PT_R12*4)(r3)
- stw r13,_UC_GREGS+(PT_R13*4)(r3)
- stw r14,_UC_GREGS+(PT_R14*4)(r3)
- stw r15,_UC_GREGS+(PT_R15*4)(r3)
- stw r16,_UC_GREGS+(PT_R16*4)(r3)
- stw r17,_UC_GREGS+(PT_R17*4)(r3)
- stw r18,_UC_GREGS+(PT_R18*4)(r3)
- stw r19,_UC_GREGS+(PT_R19*4)(r3)
- stw r20,_UC_GREGS+(PT_R20*4)(r3)
- stw r21,_UC_GREGS+(PT_R21*4)(r3)
- stw r22,_UC_GREGS+(PT_R22*4)(r3)
- stw r23,_UC_GREGS+(PT_R23*4)(r3)
- stw r24,_UC_GREGS+(PT_R24*4)(r3)
- stw r25,_UC_GREGS+(PT_R25*4)(r3)
- stw r26,_UC_GREGS+(PT_R26*4)(r3)
- stw r27,_UC_GREGS+(PT_R27*4)(r3)
- stw r28,_UC_GREGS+(PT_R28*4)(r3)
- stw r29,_UC_GREGS+(PT_R29*4)(r3)
- stw r30,_UC_GREGS+(PT_R30*4)(r3)
- stw r31,_UC_GREGS+(PT_R31*4)(r3)
-
-/* Save the value of R1. We had to push the stack before we
- had the address of uc_reg_space. So compute the address of
- the callers stack pointer and save it as R1. */
- addi r8,r1,16
- li r0,0
-/* Save the count, exception and condition registers. */
- mfctr r11
- mfxer r10
- mfcr r9
- stw r8,_UC_GREGS+(PT_R1*4)(r3)
- stw r11,_UC_GREGS+(PT_CTR*4)(r3)
- stw r10,_UC_GREGS+(PT_XER*4)(r3)
- stw r9,_UC_GREGS+(PT_CCR*4)(r3)
-/* Set the return value of getcontext to "success". R3 is the only
- register whose value is not preserved in the saved context. */
- stw r0,_UC_GREGS+(PT_R3*4)(r3)
-
- /* Zero fill fields that can't be set in user state. */
- stw r0,_UC_GREGS+(PT_MSR*4)(r3)
- stw r0,_UC_GREGS+(PT_MQ*4)(r3)
-
- /* Save the floating-point registers */
- stfd fp0,_UC_FREGS+(0*8)(r3)
- stfd fp1,_UC_FREGS+(1*8)(r3)
- stfd fp2,_UC_FREGS+(2*8)(r3)
- stfd fp3,_UC_FREGS+(3*8)(r3)
- stfd fp4,_UC_FREGS+(4*8)(r3)
- stfd fp5,_UC_FREGS+(5*8)(r3)
- stfd fp6,_UC_FREGS+(6*8)(r3)
- stfd fp7,_UC_FREGS+(7*8)(r3)
- stfd fp8,_UC_FREGS+(8*8)(r3)
- stfd fp9,_UC_FREGS+(9*8)(r3)
- stfd fp10,_UC_FREGS+(10*8)(r3)
- stfd fp11,_UC_FREGS+(11*8)(r3)
- stfd fp12,_UC_FREGS+(12*8)(r3)
- stfd fp13,_UC_FREGS+(13*8)(r3)
- stfd fp14,_UC_FREGS+(14*8)(r3)
- stfd fp15,_UC_FREGS+(15*8)(r3)
- stfd fp16,_UC_FREGS+(16*8)(r3)
- stfd fp17,_UC_FREGS+(17*8)(r3)
- stfd fp18,_UC_FREGS+(18*8)(r3)
- stfd fp19,_UC_FREGS+(19*8)(r3)
- stfd fp20,_UC_FREGS+(20*8)(r3)
- stfd fp21,_UC_FREGS+(21*8)(r3)
- stfd fp22,_UC_FREGS+(22*8)(r3)
- stfd fp23,_UC_FREGS+(23*8)(r3)
- stfd fp24,_UC_FREGS+(24*8)(r3)
- stfd fp25,_UC_FREGS+(25*8)(r3)
- stfd fp26,_UC_FREGS+(26*8)(r3)
- stfd fp27,_UC_FREGS+(27*8)(r3)
- stfd fp28,_UC_FREGS+(28*8)(r3)
- stfd fp29,_UC_FREGS+(29*8)(r3)
- mffs fp0
- stfd fp30,_UC_FREGS+(30*8)(r3)
- stfd fp31,_UC_FREGS+(31*8)(r3)
- stfd fp0,_UC_FREGS+(32*8)(r3)
-#ifdef PIC
- mflr r8
-# ifdef HAVE_ASM_PPC_REL16
- bcl 20,31,1f
-1: mflr r7
- addis r7,r7,_GLOBAL_OFFSET_TABLE_-1b@ha
- addi r7,r7,_GLOBAL_OFFSET_TABLE_-1b@l
-# else
- bl _GLOBAL_OFFSET_TABLE_@local-4
- mflr r7
-# endif
-# ifdef SHARED
- lwz r7,_rtld_global_ro@got(r7)
- mtlr r8
- lwz r7,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET(r7)
-# else
- lwz r7,_dl_hwcap@got(r7)
- mtlr r8
- lwz r7,0(r7)
-# endif
-#else
- lis r7,_dl_hwcap@ha
- lwz r7,_dl_hwcap@l(r7)
-#endif
- andis. r7,r7,(PPC_FEATURE_HAS_ALTIVEC >> 16)
-
- la r10,(_UC_VREGS)(r3)
- la r9,(_UC_VREGS+16)(r3)
-
- beq L(no_vec)
-/* address of the combined VSCR/VSAVE quadword. */
- la r8,(_UC_VREGS+512)(r3)
-
-/* Save the vector registers */
- stvx v0,0,r10
- stvx v1,0,r9
- addi r10,r10,32
- addi r9,r9,32
-/* We need to get the Vector Status and Control Register early to avoid
- store order problems later with the VSAVE register that shares the
- same quadword. */
- mfvscr v0
-
- stvx v2,0,r10
- stvx v3,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v0,0,r8
-
- stvx v4,0,r10
- stvx v5,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v6,0,r10
- stvx v7,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v8,0,r10
- stvx v9,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v10,0,r10
- stvx v11,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v12,0,r10
- stvx v13,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v14,0,r10
- stvx v15,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v16,0,r10
- stvx v17,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v18,0,r10
- stvx v19,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v20,0,r10
- stvx v21,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v22,0,r10
- stvx v23,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v24,0,r10
- stvx v25,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v26,0,r10
- stvx v27,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- stvx v28,0,r10
- stvx v29,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- mfvscr v0
- stvx v30,0,r10
- stvx v31,0,r9
-
- stw r0,0(r8)
-
-L(no_vec):
-/* Restore ucontext (parm1) from stack. */
- lwz r12,_FRAME_PARM_SAVE1(r1)
- li r4,0
- stw r3,_UC_REGS_PTR(r12)
- addi r5,r12,_UC_SIGMASK
- li r3,SIG_SETMASK
- bl __sigprocmask@local
- cmpwi r3,0
- bne L(error_exit)
-
- /*
- * If the new ucontext refers to the point where we were interrupted
- * by a signal, we have to use the rt_sigreturn system call to
- * return to the context so we get both LR and CTR restored.
- *
- * Otherwise, the context we are restoring is either just after
- * a procedure call (getcontext/swapcontext) or at the beginning
- * of a procedure call (makecontext), so we don't need to restore
- * r0, xer, ctr. We don't restore r2 since it will be used as
- * the TLS pointer.
- */
- lwz r4,_FRAME_PARM_SAVE2(r1)
- lwz r31,_UC_REGS_PTR(r4)
- lwz r0,_UC_GREGS+(PT_MSR*4)(r31)
- cmpwi r0,0
- bne L(do_sigret)
-
-#ifdef PIC
- mflr r8
-# ifdef HAVE_ASM_PPC_REL16
- bcl 20,31,1f
-1: mflr r7
- addis r7,r7,_GLOBAL_OFFSET_TABLE_-1b@ha
- addi r7,r7,_GLOBAL_OFFSET_TABLE_-1b@l
-# else
- bl _GLOBAL_OFFSET_TABLE_@local-4
- mflr r7
-# endif
-# ifdef SHARED
- lwz r7,_rtld_global_ro@got(r7)
- mtlr r8
- lwz r7,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET(r7)
-# else
- lwz r7,_dl_hwcap@got(r7)
- mtlr r8
- lwz r7,0(r7)
-# endif
-#else
- lis r7,_dl_hwcap@ha
- lwz r7,_dl_hwcap@l(r7)
-#endif
- andis. r7,r7,(PPC_FEATURE_HAS_ALTIVEC >> 16)
- la r10,(_UC_VREGS)(r31)
- beq L(has_no_vec)
-
- lwz r0,(32*16)(r10)
- li r9,(32*16)
- cmpwi r0,0
- mtspr VRSAVE,r0
- beq L(has_no_vec)
-
- lvx v19,r9,r10
- la r9,(16)(r10)
-
- lvx v0,0,r10
- lvx v1,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- mtvscr v19
- lvx v2,0,r10
- lvx v3,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v4,0,r10
- lvx v5,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v6,0,r10
- lvx v7,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v8,0,r10
- lvx v9,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v10,0,r10
- lvx v11,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v12,0,r10
- lvx v13,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v14,0,r10
- lvx v15,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v16,0,r10
- lvx v17,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v18,0,r10
- lvx v19,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v20,0,r10
- lvx v21,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v22,0,r10
- lvx v23,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v24,0,r10
- lvx v25,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v26,0,r10
- lvx v27,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v28,0,r10
- lvx v29,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v30,0,r10
- lvx v31,0,r9
- addi r10,r10,32
- addi r9,r9,32
-
- lvx v10,0,r10
- lvx v11,0,r9
-
-L(has_no_vec):
- /* Restore the floating-point registers */
- lfd fp31,_UC_FREGS+(32*8)(r31)
- lfd fp0,_UC_FREGS+(0*8)(r31)
- mtfsf 0xff,fp31
- lfd fp1,_UC_FREGS+(1*8)(r31)
- lfd fp2,_UC_FREGS+(2*8)(r31)
- lfd fp3,_UC_FREGS+(3*8)(r31)
- lfd fp4,_UC_FREGS+(4*8)(r31)
- lfd fp5,_UC_FREGS+(5*8)(r31)
- lfd fp6,_UC_FREGS+(6*8)(r31)
- lfd fp7,_UC_FREGS+(7*8)(r31)
- lfd fp8,_UC_FREGS+(8*8)(r31)
- lfd fp9,_UC_FREGS+(9*8)(r31)
- lfd fp10,_UC_FREGS+(10*8)(r31)
- lfd fp11,_UC_FREGS+(11*8)(r31)
- lfd fp12,_UC_FREGS+(12*8)(r31)
- lfd fp13,_UC_FREGS+(13*8)(r31)
- lfd fp14,_UC_FREGS+(14*8)(r31)
- lfd fp15,_UC_FREGS+(15*8)(r31)
- lfd fp16,_UC_FREGS+(16*8)(r31)
- lfd fp17,_UC_FREGS+(17*8)(r31)
- lfd fp18,_UC_FREGS+(18*8)(r31)
- lfd fp19,_UC_FREGS+(19*8)(r31)
- lfd fp20,_UC_FREGS+(20*8)(r31)
- lfd fp21,_UC_FREGS+(21*8)(r31)
- lfd fp22,_UC_FREGS+(22*8)(r31)
- lfd fp23,_UC_FREGS+(23*8)(r31)
- lfd fp24,_UC_FREGS+(24*8)(r31)
- lfd fp25,_UC_FREGS+(25*8)(r31)
- lfd fp26,_UC_FREGS+(26*8)(r31)
- lfd fp27,_UC_FREGS+(27*8)(r31)
- lfd fp28,_UC_FREGS+(28*8)(r31)
- lfd fp29,_UC_FREGS+(29*8)(r31)
- lfd fp30,_UC_FREGS+(30*8)(r31)
- lfd fp31,_UC_FREGS+(31*8)(r31)
-
- /* Restore LR and CCR, and set CTR to the NIP value */
- lwz r3,_UC_GREGS+(PT_LNK*4)(r31)
- lwz r4,_UC_GREGS+(PT_NIP*4)(r31)
- lwz r5,_UC_GREGS+(PT_CCR*4)(r31)
- mtlr r3
- mtctr r4
- mtcr r5
-
- /* Restore the general registers */
- lwz r1,_UC_GREGS+(PT_R1*4)(r31)
- lwz r3,_UC_GREGS+(PT_R3*4)(r31)
- lwz r4,_UC_GREGS+(PT_R4*4)(r31)
- lwz r5,_UC_GREGS+(PT_R5*4)(r31)
- lwz r6,_UC_GREGS+(PT_R6*4)(r31)
- lwz r7,_UC_GREGS+(PT_R7*4)(r31)
- lwz r8,_UC_GREGS+(PT_R8*4)(r31)
- lwz r9,_UC_GREGS+(PT_R9*4)(r31)
- lwz r10,_UC_GREGS+(PT_R10*4)(r31)
- lwz r11,_UC_GREGS+(PT_R11*4)(r31)
- lwz r12,_UC_GREGS+(PT_R12*4)(r31)
- lwz r13,_UC_GREGS+(PT_R13*4)(r31)
- lwz r14,_UC_GREGS+(PT_R14*4)(r31)
- lwz r15,_UC_GREGS+(PT_R15*4)(r31)
- lwz r16,_UC_GREGS+(PT_R16*4)(r31)
- lwz r17,_UC_GREGS+(PT_R17*4)(r31)
- lwz r18,_UC_GREGS+(PT_R18*4)(r31)
- lwz r19,_UC_GREGS+(PT_R19*4)(r31)
- lwz r20,_UC_GREGS+(PT_R20*4)(r31)
- lwz r21,_UC_GREGS+(PT_R21*4)(r31)
- lwz r22,_UC_GREGS+(PT_R22*4)(r31)
- lwz r23,_UC_GREGS+(PT_R23*4)(r31)
- lwz r24,_UC_GREGS+(PT_R24*4)(r31)
- lwz r25,_UC_GREGS+(PT_R25*4)(r31)
- lwz r26,_UC_GREGS+(PT_R26*4)(r31)
- lwz r27,_UC_GREGS+(PT_R27*4)(r31)
- lwz r28,_UC_GREGS+(PT_R28*4)(r31)
- lwz r29,_UC_GREGS+(PT_R29*4)(r31)
- lwz r30,_UC_GREGS+(PT_R30*4)(r31)
- lwz r31,_UC_GREGS+(PT_R31*4)(r31)
-
- bctr
-
-L(error_exit):
- lwz r0,_FRAME_LR_SAVE+16(r1)
- addi r1,r1,16
- mtlr r0
- blr
-
-L(do_sigret):
- addi r1,r4,-0xd0
- li r0,SYS_ify(rt_sigreturn)
- sc
- /* NOTREACHED */
-
-END(__swapcontext)
-
-versioned_symbol (libc, __swapcontext, swapcontext, GLIBC_2_3_4)
-
-#if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)
-
- compat_text_section
-ENTRY(__novec_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
- stwu r1,-16(r1)
- stw r0,20(r1)
- stw r31,12(r1)
- stw r31,_UC_GREGS+(PT_R31*4)(r3)
- mr r31,r4 /* new context pointer */
- stw r0,_UC_GREGS+(PT_LNK*4)(r3)
- stw r0,_UC_GREGS+(PT_NIP*4)(r3)
- stw r2,_UC_GREGS+(PT_R2*4)(r3)
- stw r4,_UC_GREGS+(PT_R4*4)(r3)
- stw r5,_UC_GREGS+(PT_R5*4)(r3)
- stw r6,_UC_GREGS+(PT_R6*4)(r3)
- stw r7,_UC_GREGS+(PT_R7*4)(r3)
- stw r8,_UC_GREGS+(PT_R8*4)(r3)
- stw r9,_UC_GREGS+(PT_R9*4)(r3)
- stw r10,_UC_GREGS+(PT_R10*4)(r3)
- stw r11,_UC_GREGS+(PT_R11*4)(r3)
- stw r12,_UC_GREGS+(PT_R12*4)(r3)
- stw r13,_UC_GREGS+(PT_R13*4)(r3)
- stw r14,_UC_GREGS+(PT_R14*4)(r3)
- stw r15,_UC_GREGS+(PT_R15*4)(r3)
- stw r16,_UC_GREGS+(PT_R16*4)(r3)
- stw r17,_UC_GREGS+(PT_R17*4)(r3)
- stw r18,_UC_GREGS+(PT_R18*4)(r3)
- stw r19,_UC_GREGS+(PT_R19*4)(r3)
- stw r20,_UC_GREGS+(PT_R20*4)(r3)
- stw r21,_UC_GREGS+(PT_R21*4)(r3)
- stw r22,_UC_GREGS+(PT_R22*4)(r3)
- stw r23,_UC_GREGS+(PT_R23*4)(r3)
- stw r24,_UC_GREGS+(PT_R24*4)(r3)
- stw r25,_UC_GREGS+(PT_R25*4)(r3)
- stw r26,_UC_GREGS+(PT_R26*4)(r3)
- stw r27,_UC_GREGS+(PT_R27*4)(r3)
- stw r28,_UC_GREGS+(PT_R28*4)(r3)
- stw r29,_UC_GREGS+(PT_R29*4)(r3)
- stw r30,_UC_GREGS+(PT_R30*4)(r3)
- mfctr r0
- stw r0,_UC_GREGS+(PT_CTR*4)(r3)
- mfxer r0
- stw r0,_UC_GREGS+(PT_XER*4)(r3)
- mfcr r0
- stw r0,_UC_GREGS+(PT_CCR*4)(r3)
-
- /* Set the return value of swapcontext to "success". R3 is the only
- register whose value is not preserved in the saved context. */
- li r0,0
- stw r0,_UC_GREGS+(PT_R3*4)(r3)
-
- /* Zero fill fields that can't be set in user state. */
- stw r0,_UC_GREGS+(PT_MSR*4)(r3)
- stw r0,_UC_GREGS+(PT_MQ*4)(r3)
-
- /* Save the floating-point registers */
- stfd fp0,_UC_FREGS+(0*8)(r3)
- stfd fp1,_UC_FREGS+(1*8)(r3)
- stfd fp2,_UC_FREGS+(2*8)(r3)
- stfd fp3,_UC_FREGS+(3*8)(r3)
- stfd fp4,_UC_FREGS+(4*8)(r3)
- stfd fp5,_UC_FREGS+(5*8)(r3)
- stfd fp6,_UC_FREGS+(6*8)(r3)
- stfd fp7,_UC_FREGS+(7*8)(r3)
- stfd fp8,_UC_FREGS+(8*8)(r3)
- stfd fp9,_UC_FREGS+(9*8)(r3)
- stfd fp10,_UC_FREGS+(10*8)(r3)
- stfd fp11,_UC_FREGS+(11*8)(r3)
- stfd fp12,_UC_FREGS+(12*8)(r3)
- stfd fp13,_UC_FREGS+(13*8)(r3)
- stfd fp14,_UC_FREGS+(14*8)(r3)
- stfd fp15,_UC_FREGS+(15*8)(r3)
- stfd fp16,_UC_FREGS+(16*8)(r3)
- stfd fp17,_UC_FREGS+(17*8)(r3)
- stfd fp18,_UC_FREGS+(18*8)(r3)
- stfd fp19,_UC_FREGS+(19*8)(r3)
- stfd fp20,_UC_FREGS+(20*8)(r3)
- stfd fp21,_UC_FREGS+(21*8)(r3)
- stfd fp22,_UC_FREGS+(22*8)(r3)
- stfd fp23,_UC_FREGS+(23*8)(r3)
- stfd fp24,_UC_FREGS+(24*8)(r3)
- stfd fp25,_UC_FREGS+(25*8)(r3)
- stfd fp26,_UC_FREGS+(26*8)(r3)
- stfd fp27,_UC_FREGS+(27*8)(r3)
- stfd fp28,_UC_FREGS+(28*8)(r3)
- stfd fp29,_UC_FREGS+(29*8)(r3)
- mffs fp0
- stfd fp30,_UC_FREGS+(30*8)(r3)
- stfd fp31,_UC_FREGS+(31*8)(r3)
- stfd fp0,_UC_FREGS+(32*8)(r3)
-
- addi r5,r3,_UC_SIGMASK - _UC_REG_SPACE
- addi r4,r4,_UC_SIGMASK
- li r3,SIG_SETMASK
- bl __sigprocmask@local
- cmpwi r3,0
- bne L(novec_error_exit)
-
- /*
- * If the new ucontext refers to the point where we were interrupted
- * by a signal, we have to use the rt_sigreturn system call to
- * return to the context so we get both LR and CTR restored.
- *
- * Otherwise, the context we are restoring is either just after
- * a procedure call (getcontext/swapcontext) or at the beginning
- * of a procedure call (makecontext), so we don't need to restore
- * 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(novec_do_sigret)
-
- /* Restore the floating-point registers */
- lfd fp31,_UC_FREGS+(32*8)(r31)
- lfd fp0,_UC_FREGS+(0*8)(r31)
- mtfsf 0xff,fp31
- lfd fp1,_UC_FREGS+(1*8)(r31)
- lfd fp2,_UC_FREGS+(2*8)(r31)
- lfd fp3,_UC_FREGS+(3*8)(r31)
- lfd fp4,_UC_FREGS+(4*8)(r31)
- lfd fp5,_UC_FREGS+(5*8)(r31)
- lfd fp6,_UC_FREGS+(6*8)(r31)
- lfd fp7,_UC_FREGS+(7*8)(r31)
- lfd fp8,_UC_FREGS+(8*8)(r31)
- lfd fp9,_UC_FREGS+(9*8)(r31)
- lfd fp10,_UC_FREGS+(10*8)(r31)
- lfd fp11,_UC_FREGS+(11*8)(r31)
- lfd fp12,_UC_FREGS+(12*8)(r31)
- lfd fp13,_UC_FREGS+(13*8)(r31)
- lfd fp14,_UC_FREGS+(14*8)(r31)
- lfd fp15,_UC_FREGS+(15*8)(r31)
- lfd fp16,_UC_FREGS+(16*8)(r31)
- lfd fp17,_UC_FREGS+(17*8)(r31)
- lfd fp18,_UC_FREGS+(18*8)(r31)
- lfd fp19,_UC_FREGS+(19*8)(r31)
- lfd fp20,_UC_FREGS+(20*8)(r31)
- lfd fp21,_UC_FREGS+(21*8)(r31)
- lfd fp22,_UC_FREGS+(22*8)(r31)
- lfd fp23,_UC_FREGS+(23*8)(r31)
- lfd fp24,_UC_FREGS+(24*8)(r31)
- lfd fp25,_UC_FREGS+(25*8)(r31)
- lfd fp26,_UC_FREGS+(26*8)(r31)
- lfd fp27,_UC_FREGS+(27*8)(r31)
- lfd fp28,_UC_FREGS+(28*8)(r31)
- lfd fp29,_UC_FREGS+(29*8)(r31)
- lfd fp30,_UC_FREGS+(30*8)(r31)
- lfd fp31,_UC_FREGS+(31*8)(r31)
-
- /* Restore LR and CCR, and set CTR to the NIP value */
- lwz r3,_UC_GREGS+(PT_LNK*4)(r31)
- lwz r4,_UC_GREGS+(PT_NIP*4)(r31)
- lwz r5,_UC_GREGS+(PT_CCR*4)(r31)
- mtlr r3
- mtctr r4
- mtcr r5
-
- /* Restore the general registers */
- lwz r1,_UC_GREGS+(PT_R1*4)(r31)
- lwz r3,_UC_GREGS+(PT_R3*4)(r31)
- lwz r4,_UC_GREGS+(PT_R4*4)(r31)
- lwz r5,_UC_GREGS+(PT_R5*4)(r31)
- lwz r6,_UC_GREGS+(PT_R6*4)(r31)
- lwz r7,_UC_GREGS+(PT_R7*4)(r31)
- lwz r8,_UC_GREGS+(PT_R8*4)(r31)
- lwz r9,_UC_GREGS+(PT_R9*4)(r31)
- lwz r10,_UC_GREGS+(PT_R10*4)(r31)
- lwz r11,_UC_GREGS+(PT_R11*4)(r31)
- lwz r12,_UC_GREGS+(PT_R12*4)(r31)
- lwz r13,_UC_GREGS+(PT_R13*4)(r31)
- lwz r14,_UC_GREGS+(PT_R14*4)(r31)
- lwz r15,_UC_GREGS+(PT_R15*4)(r31)
- lwz r16,_UC_GREGS+(PT_R16*4)(r31)
- lwz r17,_UC_GREGS+(PT_R17*4)(r31)
- lwz r18,_UC_GREGS+(PT_R18*4)(r31)
- lwz r19,_UC_GREGS+(PT_R19*4)(r31)
- lwz r20,_UC_GREGS+(PT_R20*4)(r31)
- lwz r21,_UC_GREGS+(PT_R21*4)(r31)
- lwz r22,_UC_GREGS+(PT_R22*4)(r31)
- lwz r23,_UC_GREGS+(PT_R23*4)(r31)
- lwz r24,_UC_GREGS+(PT_R24*4)(r31)
- lwz r25,_UC_GREGS+(PT_R25*4)(r31)
- lwz r26,_UC_GREGS+(PT_R26*4)(r31)
- lwz r27,_UC_GREGS+(PT_R27*4)(r31)
- lwz r28,_UC_GREGS+(PT_R28*4)(r31)
- lwz r29,_UC_GREGS+(PT_R29*4)(r31)
- lwz r30,_UC_GREGS+(PT_R30*4)(r31)
- lwz r31,_UC_GREGS+(PT_R31*4)(r31)
-
- bctr
-
-L(novec_error_exit):
- lwz r31,12(r1)
- lwz r0,20(r1)
- addi r1,r1,16
- mtlr r0
- blr
-
-L(novec_do_sigret):
- addi r1,r4,-0xd0
- li r0,SYS_ify(rt_sigreturn)
- sc
- /* NOTREACHED */
-
-END(__novec_swapcontext)
- .previous
-
-compat_symbol (libc, __novec_swapcontext, swapcontext, GLIBC_2_3_3)
-
-#endif
-
-#if SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_3_3)
-
-#define _ERRNO_H 1
-#include <bits/errno.h>
-
- compat_text_section
-ENTRY (__swapcontext_stub)
- li r3,ENOSYS
- b __syscall_error@local
-END (__swapcontext_stub)
- .previous
-
-compat_symbol (libc, __swapcontext_stub, swapcontext, GLIBC_2_1)
-
-#endif
diff -urN libc24-cvstip-20051206/sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.h libc24/sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.h
--- libc24-cvstip-20051206/sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.h 2005-10-19 19:08:24.000000000 -0500
+++ libc24/sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.h 2005-12-07 23:25:21.000000000 -0600
@@ -28,6 +28,8 @@
#define _FRAME_PARM_SAVE3 16
#define _FRAME_PARM_SAVE4 20
+#define _UC_SIZE 1184
+#define _UC_SIZE_2_3_4 1184
#define _UC_LINK 4
#define _UC_STACK_SP 8
#define _UC_STACK_SIZE 16