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Update.
2003-06-17 Paul Mackerras <paulus@samba.org> * sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc32/makecontext.S: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.h: New file. * sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h: Adjust.
This commit is contained in:
Ulrich Drepper
parent
1d53508d2c
commit
aebcf54cb0
@ -1,3 +1,12 @@
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2003-06-17 Paul Mackerras <paulus@samba.org>
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* sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S: New file.
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* sysdeps/unix/sysv/linux/powerpc/powerpc32/makecontext.S: New file.
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* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S: New file.
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* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S: New file.
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* sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.h: New file.
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* sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h: Adjust.
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2003-06-17 Jakub Jelinek <jakub@redhat.com>
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* posix/regcomp.c (build_word_op): Use alnum instead of alpha class.
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126
sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S
Normal file
126
sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S
Normal file
@ -0,0 +1,126 @@
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/* Save current context.
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Copyright (C) 2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep.h>
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#define __ASSEMBLY__
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#include <asm/ptrace.h>
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#include "ucontext_i.h"
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ENTRY(__getcontext)
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stw r0,_UC_GREGS+(PT_R0*4)(r3)
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stw r1,_UC_GREGS+(PT_R1*4)(r3)
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mflr r0
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stwu r1,-16(r1)
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stw r0,20(r1)
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stw r0,_UC_GREGS+(PT_LNK*4)(r3)
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stw r0,_UC_GREGS+(PT_NIP*4)(r3)
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stw r2,_UC_GREGS+(PT_R2*4)(r3)
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stw r4,_UC_GREGS+(PT_R4*4)(r3)
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stw r5,_UC_GREGS+(PT_R5*4)(r3)
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stw r6,_UC_GREGS+(PT_R6*4)(r3)
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stw r7,_UC_GREGS+(PT_R7*4)(r3)
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stw r8,_UC_GREGS+(PT_R8*4)(r3)
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stw r9,_UC_GREGS+(PT_R9*4)(r3)
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stw r10,_UC_GREGS+(PT_R10*4)(r3)
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stw r11,_UC_GREGS+(PT_R11*4)(r3)
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stw r12,_UC_GREGS+(PT_R12*4)(r3)
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stw r13,_UC_GREGS+(PT_R13*4)(r3)
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stw r14,_UC_GREGS+(PT_R14*4)(r3)
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stw r15,_UC_GREGS+(PT_R15*4)(r3)
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stw r16,_UC_GREGS+(PT_R16*4)(r3)
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stw r17,_UC_GREGS+(PT_R17*4)(r3)
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stw r18,_UC_GREGS+(PT_R18*4)(r3)
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stw r19,_UC_GREGS+(PT_R19*4)(r3)
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stw r20,_UC_GREGS+(PT_R20*4)(r3)
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stw r21,_UC_GREGS+(PT_R21*4)(r3)
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stw r22,_UC_GREGS+(PT_R22*4)(r3)
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stw r23,_UC_GREGS+(PT_R23*4)(r3)
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stw r24,_UC_GREGS+(PT_R24*4)(r3)
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stw r25,_UC_GREGS+(PT_R25*4)(r3)
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stw r26,_UC_GREGS+(PT_R26*4)(r3)
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stw r27,_UC_GREGS+(PT_R27*4)(r3)
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stw r28,_UC_GREGS+(PT_R28*4)(r3)
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stw r29,_UC_GREGS+(PT_R29*4)(r3)
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stw r30,_UC_GREGS+(PT_R30*4)(r3)
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stw r31,_UC_GREGS+(PT_R31*4)(r3)
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mfctr r0
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stw r0,_UC_GREGS+(PT_CTR*4)(r3)
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mfxer r0
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stw r0,_UC_GREGS+(PT_XER*4)(r3)
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mfcr r0
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stw r0,_UC_GREGS+(PT_CCR*4)(r3)
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/* Set the return value of getcontext to "success". R3 is the only
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register whose value is not preserved in the saved context. */
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li r0,0
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stw r0,_UC_GREGS+(PT_R3*4)(r3)
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/* Zero fill fields that can't be set in user state. */
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stw r0,_UC_GREGS+(PT_MSR*4)(r3)
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stw r0,_UC_GREGS+(PT_MQ*4)(r3)
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/* Save the floating-point registers */
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stfd fp0,_UC_FREGS+(0*8)(r3)
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stfd fp1,_UC_FREGS+(1*8)(r3)
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stfd fp2,_UC_FREGS+(2*8)(r3)
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stfd fp3,_UC_FREGS+(3*8)(r3)
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stfd fp4,_UC_FREGS+(4*8)(r3)
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stfd fp5,_UC_FREGS+(5*8)(r3)
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stfd fp6,_UC_FREGS+(6*8)(r3)
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stfd fp7,_UC_FREGS+(7*8)(r3)
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stfd fp8,_UC_FREGS+(8*8)(r3)
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stfd fp9,_UC_FREGS+(9*8)(r3)
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stfd fp10,_UC_FREGS+(10*8)(r3)
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stfd fp11,_UC_FREGS+(11*8)(r3)
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stfd fp12,_UC_FREGS+(12*8)(r3)
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stfd fp13,_UC_FREGS+(13*8)(r3)
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stfd fp14,_UC_FREGS+(14*8)(r3)
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stfd fp15,_UC_FREGS+(15*8)(r3)
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stfd fp16,_UC_FREGS+(16*8)(r3)
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stfd fp17,_UC_FREGS+(17*8)(r3)
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stfd fp18,_UC_FREGS+(18*8)(r3)
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stfd fp19,_UC_FREGS+(19*8)(r3)
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stfd fp20,_UC_FREGS+(20*8)(r3)
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stfd fp21,_UC_FREGS+(21*8)(r3)
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stfd fp22,_UC_FREGS+(22*8)(r3)
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stfd fp23,_UC_FREGS+(23*8)(r3)
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stfd fp24,_UC_FREGS+(24*8)(r3)
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stfd fp25,_UC_FREGS+(25*8)(r3)
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stfd fp26,_UC_FREGS+(26*8)(r3)
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stfd fp27,_UC_FREGS+(27*8)(r3)
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stfd fp28,_UC_FREGS+(28*8)(r3)
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stfd fp29,_UC_FREGS+(29*8)(r3)
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mffs fp0
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stfd fp30,_UC_FREGS+(30*8)(r3)
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stfd fp31,_UC_FREGS+(31*8)(r3)
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stfd fp0,_UC_FREGS+(32*8)(r3)
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addi r5,r3,_UC_SIGMASK
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li r4,0
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li r3,SIG_BLOCK
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bl JUMPTARGET(sigprocmask)
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lwz r0,20(r1)
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addi r1,r1,16
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mtlr r0
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blr
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PSEUDO_END(__getcontext)
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weak_alias(__getcontext, getcontext)
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105
sysdeps/unix/sysv/linux/powerpc/powerpc32/makecontext.S
Normal file
105
sysdeps/unix/sysv/linux/powerpc/powerpc32/makecontext.S
Normal file
@ -0,0 +1,105 @@
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/* Set up a context to call a function.
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Copyright (C) 2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
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Lesser General Public License for more details.
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|
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep.h>
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#define __ASSEMBLY__
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#include <asm/ptrace.h>
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#include "ucontext_i.h"
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ENTRY(__makecontext)
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/* Set up the first 7 args to the function in its registers */
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stw r6,_UC_GREGS+(PT_R3*4)(r3)
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stw r7,_UC_GREGS+(PT_R4*4)(r3)
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stw r8,_UC_GREGS+(PT_R5*4)(r3)
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stw r9,_UC_GREGS+(PT_R6*4)(r3)
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stw r10,_UC_GREGS+(PT_R7*4)(r3)
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lwz r8,8(r1)
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lwz r9,12(r1)
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stw r8,_UC_GREGS+(PT_R8*4)(r3)
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stw r9,_UC_GREGS+(PT_R9*4)(r3)
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/* Set the NIP to the start of the function */
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stw r4,_UC_GREGS+(PT_NIP*4)(r3)
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/* Set the function's r31 to ucp->uc_link for the exitcode below. */
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lwz r7,_UC_LINK(r3)
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stw r7,_UC_GREGS+(PT_R31*4)(r3)
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/* Set the function's LR to point to the exitcode below. */
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#ifdef PIC
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mflr r0
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bl 1f
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1: mflr r6
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addi r6,r6,L(exitcode)-1b
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mtlr r0
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#else
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lis r6,L(exitcode)@ha
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addi r6,r6,L(exitcode)@l
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#endif
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stw r6,_UC_GREGS+(PT_LNK*4)(r3)
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/*
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* Set up the stack frame for the function.
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* If we have more than 5 args to the function (8 args to makecontext),
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* there will be some arguments on the stack which have to end up
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* in registers. If there are more than 8 args to the function,
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* we have to copy (argc - 8) args from our stack to the functions'
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* stack (and allow space for them in the frame).
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*/
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lwz r4,_UC_STACK_SP(r3)
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lwz r8,_UC_STACK_SIZE(r3)
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add r4,r4,r8
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rlwinm r4,r4,0,0,27 /* round down to 16-byte boundary */
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addi r7,r4,-16 /* stack frame for fn's caller */
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cmpwi r5,8
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blt 2f /* less than 8 args is easy */
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lwz r10,16(r1)
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stw r10,_UC_GREGS+(PT_R10*4)(r3)
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beq 2f /* if exactly 8 args */
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subi r9,r5,3
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subi r5,r5,8
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rlwinm r9,r9,2,0,27
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subf r7,r9,r4
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mtctr r5 /* copy the 9th and following args */
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addi r6,r1,16
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addi r8,r7,4
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3: lwzu r10,4(r6)
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stwu r10,4(r8)
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bdnz 3b
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2: stw r7,_UC_GREGS+(PT_R1*4)(r3)
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li r6,0
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stw r6,0(r7)
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blr
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/*
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* If the function returns, it comes here. We put ucp->uc_link in
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* r31, which is a callee-saved register. We have to continue with
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* the context that r31 points to, or exit if it is 0.
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*/
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L(exitcode):
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mr. r3,r31
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beq 4f
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bl JUMPTARGET(__setcontext)
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4: bl HIDDEN_JUMPTARGET(exit)
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b 4b
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END(__makecontext)
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weak_alias(__makecontext, makecontext)
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149
sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S
Normal file
149
sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S
Normal file
@ -0,0 +1,149 @@
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/* Jump to a new context.
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||||
Copyright (C) 2002 Free Software Foundation, Inc.
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||||
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>
|
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|
||||
#define __ASSEMBLY__
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#include <asm/ptrace.h>
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#include "ucontext_i.h"
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|
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ENTRY(__setcontext)
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mflr r0
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stwu r1,-16(r1)
|
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stw r0,20(r1)
|
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stw r31,12(r1)
|
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mr r31,r3
|
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|
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/*
|
||||
* 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.
|
||||
*
|
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* Otherwise, the context we are restoring is either just after
|
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* a procedure call (getcontext/swapcontext) or at the beginning
|
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* of a procedure call (makecontext), so we don't need to restore
|
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* r0, xer, ctr. We don't restore r2 since it will be used as
|
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* the TLS pointer.
|
||||
*/
|
||||
lwz r0,_UC_GREGS+(PT_MSR*4)(r31)
|
||||
cmpwi r0,0
|
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bne L(do_sigret)
|
||||
|
||||
/* Restore the signal mask */
|
||||
li r5,0
|
||||
addi r4,r3,_UC_SIGMASK
|
||||
li r3,SIG_SETMASK
|
||||
bl JUMPTARGET(sigprocmask)
|
||||
cmpwi r3,0
|
||||
bne L(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(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 */
|
||||
|
||||
PSEUDO_END(__setcontext)
|
||||
|
||||
weak_alias(__setcontext, setcontext)
|
||||
233
sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S
Normal file
233
sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S
Normal file
@ -0,0 +1,233 @@
|
||||
/* Save current context and jump to a new context.
|
||||
Copyright (C) 2002 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>
|
||||
|
||||
#define __ASSEMBLY__
|
||||
#include <asm/ptrace.h>
|
||||
#include "ucontext_i.h"
|
||||
|
||||
ENTRY(__swapcontext)
|
||||
/* Save the current context */
|
||||
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
|
||||
addi r4,r4,_UC_SIGMASK
|
||||
li r3,SIG_SETMASK
|
||||
bl JUMPTARGET(sigprocmask)
|
||||
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 r0,_UC_GREGS+(PT_MSR*4)(r31)
|
||||
cmpwi r0,0
|
||||
bne L(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(error_exit):
|
||||
lwz r31,12(r1)
|
||||
lwz r0,20(r1)
|
||||
addi r1,r1,16
|
||||
mtlr r0
|
||||
blr
|
||||
|
||||
L(do_sigret):
|
||||
addi r1,r31,-0xd0
|
||||
li r0,SYS_ify(rt_sigreturn)
|
||||
sc
|
||||
/* NOTREACHED */
|
||||
|
||||
PSEUDO_END(__swapcontext)
|
||||
|
||||
weak_alias(__swapcontext, swapcontext)
|
||||
30
sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.h
Normal file
30
sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.h
Normal file
@ -0,0 +1,30 @@
|
||||
/* Offsets and other constants needed in the *context() function
|
||||
implementation.
|
||||
Copyright (C) 2002 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. */
|
||||
|
||||
#define SIG_BLOCK 0
|
||||
#define SIG_SETMASK 2
|
||||
|
||||
#define _UC_LINK 4
|
||||
#define _UC_STACK_SP 8
|
||||
#define _UC_STACK_SIZE 16
|
||||
#define _UC_SIGMASK 64
|
||||
#define _UC_GREGS 192
|
||||
#define _UC_FREGS 384
|
||||
#define _UC_VREGS 656
|
||||
@ -26,9 +26,47 @@
|
||||
included in <signal.h>. */
|
||||
#include <bits/sigcontext.h>
|
||||
|
||||
/* A machine context is exactly a sigcontext. */
|
||||
#if __WORDSIZE == 32
|
||||
|
||||
/* Number of general registers. */
|
||||
#define NGREG 48
|
||||
|
||||
/* Container for all general registers. */
|
||||
typedef unsigned long gregset_t[NGREG];
|
||||
|
||||
/* Container for floating-point registers and status */
|
||||
typedef struct _libc_fpstate
|
||||
{
|
||||
double fpregs[32];
|
||||
double fpscr;
|
||||
unsigned int _pad[2];
|
||||
} fpregset_t;
|
||||
|
||||
/* Container for Altivec/VMX registers and status.
|
||||
Needs to be aligned on a 16-byte boundary. */
|
||||
typedef struct _libc_vrstate
|
||||
{
|
||||
unsigned int vrregs[32][4];
|
||||
unsigned int vscr;
|
||||
unsigned int vrsave;
|
||||
unsigned int _pad[2];
|
||||
} vrregset_t;
|
||||
|
||||
/* Context to describe whole processor state. */
|
||||
typedef struct
|
||||
{
|
||||
gregset_t gregs;
|
||||
fpregset_t fpregs;
|
||||
vrregset_t vrregs __attribute__((__aligned__(16)));
|
||||
} mcontext_t;
|
||||
|
||||
#else
|
||||
|
||||
/* For 64-bit, a machine context is exactly a sigcontext. */
|
||||
typedef struct sigcontext mcontext_t;
|
||||
|
||||
#endif
|
||||
|
||||
/* Userlevel context. */
|
||||
typedef struct ucontext
|
||||
{
|
||||
@ -36,12 +74,14 @@ typedef struct ucontext
|
||||
struct ucontext *uc_link;
|
||||
stack_t uc_stack;
|
||||
#if __WORDSIZE == 32
|
||||
mcontext_t uc_mcontext;
|
||||
__sigset_t uc_sigmask;
|
||||
#else
|
||||
/* These fields are for backwards compatibility. */
|
||||
int uc_pad[7];
|
||||
mcontext_t *uc_regs;
|
||||
unsigned int uc_oldsigmask[2];
|
||||
int uc_pad2;
|
||||
#endif
|
||||
sigset_t uc_sigmask;
|
||||
mcontext_t uc_mcontext; /* last for extensibility */
|
||||
#endif
|
||||
} ucontext_t;
|
||||
|
||||
#endif /* sys/ucontext.h */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user