mirror of
https://sourceware.org/git/glibc.git
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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
@ -1,3 +1,12 @@
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2003-06-17 Paul Mackerras <paulus@samba.org>
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|
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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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|
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2003-06-17 Jakub Jelinek <jakub@redhat.com>
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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.
|
* 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
|
||||||
|
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
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|
02111-1307 USA. */
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|
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#include <sysdep.h>
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|
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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(__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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|
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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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|
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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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|
|
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|
/* Save the floating-point registers */
|
||||||
|
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)
|
||||||
|
stfd fp3,_UC_FREGS+(3*8)(r3)
|
||||||
|
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)
|
||||||
|
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)
|
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|
stfd fp22,_UC_FREGS+(22*8)(r3)
|
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|
stfd fp23,_UC_FREGS+(23*8)(r3)
|
||||||
|
stfd fp24,_UC_FREGS+(24*8)(r3)
|
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|
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
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||||||
|
stfd fp30,_UC_FREGS+(30*8)(r3)
|
||||||
|
stfd fp31,_UC_FREGS+(31*8)(r3)
|
||||||
|
stfd fp0,_UC_FREGS+(32*8)(r3)
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|
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|
addi r5,r3,_UC_SIGMASK
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|
li r4,0
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|
li r3,SIG_BLOCK
|
||||||
|
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
|
||||||
|
blr
|
||||||
|
PSEUDO_END(__getcontext)
|
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|
|
||||||
|
weak_alias(__getcontext, getcontext)
|
||||||
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 @@
|
|||||||
|
/* Set up a context to call a function.
|
||||||
|
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(__makecontext)
|
||||||
|
/* Set up the first 7 args to the function in its registers */
|
||||||
|
stw r6,_UC_GREGS+(PT_R3*4)(r3)
|
||||||
|
stw r7,_UC_GREGS+(PT_R4*4)(r3)
|
||||||
|
stw r8,_UC_GREGS+(PT_R5*4)(r3)
|
||||||
|
stw r9,_UC_GREGS+(PT_R6*4)(r3)
|
||||||
|
stw r10,_UC_GREGS+(PT_R7*4)(r3)
|
||||||
|
lwz r8,8(r1)
|
||||||
|
lwz r9,12(r1)
|
||||||
|
stw r8,_UC_GREGS+(PT_R8*4)(r3)
|
||||||
|
stw r9,_UC_GREGS+(PT_R9*4)(r3)
|
||||||
|
|
||||||
|
/* Set the NIP to the start of the function */
|
||||||
|
stw r4,_UC_GREGS+(PT_NIP*4)(r3)
|
||||||
|
|
||||||
|
/* Set the function's r31 to ucp->uc_link for the exitcode below. */
|
||||||
|
lwz r7,_UC_LINK(r3)
|
||||||
|
stw r7,_UC_GREGS+(PT_R31*4)(r3)
|
||||||
|
|
||||||
|
/* Set the function's LR to point to the exitcode below. */
|
||||||
|
#ifdef PIC
|
||||||
|
mflr r0
|
||||||
|
bl 1f
|
||||||
|
1: mflr r6
|
||||||
|
addi r6,r6,L(exitcode)-1b
|
||||||
|
mtlr r0
|
||||||
|
#else
|
||||||
|
lis r6,L(exitcode)@ha
|
||||||
|
addi r6,r6,L(exitcode)@l
|
||||||
|
#endif
|
||||||
|
stw r6,_UC_GREGS+(PT_LNK*4)(r3)
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Set up the stack frame for the function.
|
||||||
|
* If we have more than 5 args to the function (8 args to makecontext),
|
||||||
|
* there will be some arguments on the stack which have to end up
|
||||||
|
* in registers. If there are more than 8 args to the function,
|
||||||
|
* we have to copy (argc - 8) args from our stack to the functions'
|
||||||
|
* stack (and allow space for them in the frame).
|
||||||
|
*/
|
||||||
|
lwz r4,_UC_STACK_SP(r3)
|
||||||
|
lwz r8,_UC_STACK_SIZE(r3)
|
||||||
|
add r4,r4,r8
|
||||||
|
rlwinm r4,r4,0,0,27 /* round down to 16-byte boundary */
|
||||||
|
addi r7,r4,-16 /* stack frame for fn's caller */
|
||||||
|
cmpwi r5,8
|
||||||
|
blt 2f /* less than 8 args is easy */
|
||||||
|
lwz r10,16(r1)
|
||||||
|
stw r10,_UC_GREGS+(PT_R10*4)(r3)
|
||||||
|
beq 2f /* if exactly 8 args */
|
||||||
|
subi r9,r5,3
|
||||||
|
subi r5,r5,8
|
||||||
|
rlwinm r9,r9,2,0,27
|
||||||
|
subf r7,r9,r4
|
||||||
|
mtctr r5 /* copy the 9th and following args */
|
||||||
|
addi r6,r1,16
|
||||||
|
addi r8,r7,4
|
||||||
|
3: lwzu r10,4(r6)
|
||||||
|
stwu r10,4(r8)
|
||||||
|
bdnz 3b
|
||||||
|
2: stw r7,_UC_GREGS+(PT_R1*4)(r3)
|
||||||
|
li r6,0
|
||||||
|
stw r6,0(r7)
|
||||||
|
|
||||||
|
blr
|
||||||
|
|
||||||
|
/*
|
||||||
|
* If the function returns, it comes here. We put ucp->uc_link in
|
||||||
|
* r31, which is a callee-saved register. We have to continue with
|
||||||
|
* the context that r31 points to, or exit if it is 0.
|
||||||
|
*/
|
||||||
|
L(exitcode):
|
||||||
|
mr. r3,r31
|
||||||
|
beq 4f
|
||||||
|
bl JUMPTARGET(__setcontext)
|
||||||
|
4: bl HIDDEN_JUMPTARGET(exit)
|
||||||
|
b 4b
|
||||||
|
|
||||||
|
END(__makecontext)
|
||||||
|
weak_alias(__makecontext, makecontext)
|
||||||
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 @@
|
|||||||
|
/* 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(__setcontext)
|
||||||
|
mflr r0
|
||||||
|
stwu r1,-16(r1)
|
||||||
|
stw r0,20(r1)
|
||||||
|
stw r31,12(r1)
|
||||||
|
mr r31,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 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>. */
|
included in <signal.h>. */
|
||||||
#include <bits/sigcontext.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;
|
typedef struct sigcontext mcontext_t;
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
||||||
/* Userlevel context. */
|
/* Userlevel context. */
|
||||||
typedef struct ucontext
|
typedef struct ucontext
|
||||||
{
|
{
|
||||||
@ -36,12 +74,14 @@ typedef struct ucontext
|
|||||||
struct ucontext *uc_link;
|
struct ucontext *uc_link;
|
||||||
stack_t uc_stack;
|
stack_t uc_stack;
|
||||||
#if __WORDSIZE == 32
|
#if __WORDSIZE == 32
|
||||||
mcontext_t uc_mcontext;
|
/* These fields are for backwards compatibility. */
|
||||||
__sigset_t uc_sigmask;
|
int uc_pad[7];
|
||||||
#else
|
mcontext_t *uc_regs;
|
||||||
|
unsigned int uc_oldsigmask[2];
|
||||||
|
int uc_pad2;
|
||||||
|
#endif
|
||||||
sigset_t uc_sigmask;
|
sigset_t uc_sigmask;
|
||||||
mcontext_t uc_mcontext; /* last for extensibility */
|
mcontext_t uc_mcontext; /* last for extensibility */
|
||||||
#endif
|
|
||||||
} ucontext_t;
|
} ucontext_t;
|
||||||
|
|
||||||
#endif /* sys/ucontext.h */
|
#endif /* sys/ucontext.h */
|
||||||
|
|||||||
Reference in New Issue
Block a user