mirror of
https://sourceware.org/git/glibc.git
synced 2025-07-30 22:43:12 +03:00
Update.
2003-01-16 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/unix/sysv/linux/powerpc/powerpc64/getcontext.S: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/ucontext_i.h: New file. * sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h: New file. * sysdeps/unix/sysv/linux/configure.in: Minimum kernel for PPC64 is 2.4.21. 2003-01-16 Ulrich Drepper <drepper@redhat.com> * sysdeps/generic/glob.c (glob): Assume sysconf() always returns values != -1 for _LIBC. Use extend_alloca to reallocate alloca'ed buffers. * sysdeps/generic/sysconf.c: Unconditionally implement _SC_GETPW_R_SIZE_MAX and _SC_GETGR_R_SIZE_MAX. * sysdeps/posix/sysconf.c: Likewise.
This commit is contained in:
Ulrich Drepper
21
ChangeLog
21
ChangeLog
@ -1,3 +1,24 @@
|
|||||||
|
2003-01-16 Steven Munroe <sjmunroe@us.ibm.com>
|
||||||
|
|
||||||
|
* sysdeps/unix/sysv/linux/powerpc/powerpc64/getcontext.S: New file.
|
||||||
|
* sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S: New file.
|
||||||
|
* sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S: New file.
|
||||||
|
* sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S: New file.
|
||||||
|
* sysdeps/unix/sysv/linux/powerpc/powerpc64/ucontext_i.h: New file.
|
||||||
|
* sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h: New file.
|
||||||
|
* sysdeps/unix/sysv/linux/configure.in: Minimum kernel for PPC64
|
||||||
|
is 2.4.21.
|
||||||
|
|
||||||
|
2003-01-16 Ulrich Drepper <drepper@redhat.com>
|
||||||
|
|
||||||
|
* sysdeps/generic/glob.c (glob): Assume sysconf() always returns
|
||||||
|
values != -1 for _LIBC. Use extend_alloca to reallocate alloca'ed
|
||||||
|
buffers.
|
||||||
|
|
||||||
|
* sysdeps/generic/sysconf.c: Unconditionally implement
|
||||||
|
_SC_GETPW_R_SIZE_MAX and _SC_GETGR_R_SIZE_MAX.
|
||||||
|
* sysdeps/posix/sysconf.c: Likewise.
|
||||||
|
|
||||||
2003-01-16 Jakub Jelinek <jakub@redhat.com>
|
2003-01-16 Jakub Jelinek <jakub@redhat.com>
|
||||||
|
|
||||||
* posix/regcomp.c (parse_bracket_exp): If build_charclass fails,
|
* posix/regcomp.c (parse_bracket_exp): If build_charclass fails,
|
||||||
|
|||||||
@ -1,4 +1,4 @@
|
|||||||
/* Copyright (C) 1991-1999, 2000, 2001, 2002 Free Software Foundation, Inc.
|
/* Copyright (C) 1991-2002, 2003 Free Software Foundation, Inc.
|
||||||
This file is part of the GNU C Library.
|
This file is part of the GNU C Library.
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
The GNU C Library is free software; you can redistribute it and/or
|
||||||
@ -284,6 +284,7 @@ extern char *alloca ();
|
|||||||
#endif
|
#endif
|
||||||
|
|
||||||
#ifdef _LIBC
|
#ifdef _LIBC
|
||||||
|
# include <alloca.h>
|
||||||
# undef strdup
|
# undef strdup
|
||||||
# define strdup(str) __strdup (str)
|
# define strdup(str) __strdup (str)
|
||||||
# define sysconf(id) __sysconf (id)
|
# define sysconf(id) __sysconf (id)
|
||||||
@ -697,10 +698,12 @@ glob (pattern, flags, errfunc, pglob)
|
|||||||
struct passwd pwbuf;
|
struct passwd pwbuf;
|
||||||
int save = errno;
|
int save = errno;
|
||||||
|
|
||||||
|
# ifndef _LIBC
|
||||||
if (pwbuflen == -1)
|
if (pwbuflen == -1)
|
||||||
/* `sysconf' does not support _SC_GETPW_R_SIZE_MAX.
|
/* `sysconf' does not support _SC_GETPW_R_SIZE_MAX.
|
||||||
Try a moderate value. */
|
Try a moderate value. */
|
||||||
pwbuflen = 1024;
|
pwbuflen = 1024;
|
||||||
|
# endif
|
||||||
pwtmpbuf = (char *) __alloca (pwbuflen);
|
pwtmpbuf = (char *) __alloca (pwbuflen);
|
||||||
|
|
||||||
while (getpwnam_r (name, &pwbuf, pwtmpbuf, pwbuflen, &p)
|
while (getpwnam_r (name, &pwbuf, pwtmpbuf, pwbuflen, &p)
|
||||||
@ -711,8 +714,13 @@ glob (pattern, flags, errfunc, pglob)
|
|||||||
p = NULL;
|
p = NULL;
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
|
# ifdef _LIBC
|
||||||
|
pwtmpbuf = extend_alloca (pwtmpbuf, pwbuflen,
|
||||||
|
2 * pwbuflen);
|
||||||
|
# else
|
||||||
pwbuflen *= 2;
|
pwbuflen *= 2;
|
||||||
pwtmpbuf = (char *) __alloca (pwbuflen);
|
pwtmpbuf = (char *) __alloca (pwbuflen);
|
||||||
|
# endif
|
||||||
__set_errno (save);
|
__set_errno (save);
|
||||||
}
|
}
|
||||||
# else
|
# else
|
||||||
@ -781,10 +789,12 @@ glob (pattern, flags, errfunc, pglob)
|
|||||||
struct passwd pwbuf;
|
struct passwd pwbuf;
|
||||||
int save = errno;
|
int save = errno;
|
||||||
|
|
||||||
|
# ifndef _LIBC
|
||||||
if (buflen == -1)
|
if (buflen == -1)
|
||||||
/* `sysconf' does not support _SC_GETPW_R_SIZE_MAX. Try a
|
/* `sysconf' does not support _SC_GETPW_R_SIZE_MAX. Try a
|
||||||
moderate value. */
|
moderate value. */
|
||||||
buflen = 1024;
|
buflen = 1024;
|
||||||
|
# endif
|
||||||
pwtmpbuf = (char *) __alloca (buflen);
|
pwtmpbuf = (char *) __alloca (buflen);
|
||||||
|
|
||||||
while (getpwnam_r (user_name, &pwbuf, pwtmpbuf, buflen, &p) != 0)
|
while (getpwnam_r (user_name, &pwbuf, pwtmpbuf, buflen, &p) != 0)
|
||||||
@ -794,8 +804,12 @@ glob (pattern, flags, errfunc, pglob)
|
|||||||
p = NULL;
|
p = NULL;
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
|
# ifdef _LIBC
|
||||||
|
pwtmpbuf = extend_alloca (pwtmpbuf, buflen, 2 * buflen);
|
||||||
|
# else
|
||||||
buflen *= 2;
|
buflen *= 2;
|
||||||
pwtmpbuf = __alloca (buflen);
|
pwtmpbuf = __alloca (buflen);
|
||||||
|
# endif
|
||||||
__set_errno (save);
|
__set_errno (save);
|
||||||
}
|
}
|
||||||
# else
|
# else
|
||||||
@ -1326,9 +1340,9 @@ glob_in_dir (pattern, directory, flags, errfunc, pglob)
|
|||||||
int fnm_flags = ((!(flags & GLOB_PERIOD) ? FNM_PERIOD : 0)
|
int fnm_flags = ((!(flags & GLOB_PERIOD) ? FNM_PERIOD : 0)
|
||||||
| ((flags & GLOB_NOESCAPE) ? FNM_NOESCAPE : 0)
|
| ((flags & GLOB_NOESCAPE) ? FNM_NOESCAPE : 0)
|
||||||
#if defined _AMIGA || defined VMS
|
#if defined _AMIGA || defined VMS
|
||||||
| FNM_CASEFOLD
|
| FNM_CASEFOLD
|
||||||
#endif
|
#endif
|
||||||
);
|
);
|
||||||
nfound = 0;
|
nfound = 0;
|
||||||
flags |= GLOB_MAGCHAR;
|
flags |= GLOB_MAGCHAR;
|
||||||
|
|
||||||
|
|||||||
@ -1,4 +1,5 @@
|
|||||||
/* Copyright (C) 1991,1993,1995-1997,2001,2002 Free Software Foundation, Inc.
|
/* Copyright (C) 1991,1993,1995-1997,2001,2002,2003
|
||||||
|
Free Software Foundation, Inc.
|
||||||
This file is part of the GNU C Library.
|
This file is part of the GNU C Library.
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
The GNU C Library is free software; you can redistribute it and/or
|
||||||
@ -142,6 +143,12 @@ __sysconf (name)
|
|||||||
case _SC_USHRT_MAX:
|
case _SC_USHRT_MAX:
|
||||||
return USHRT_MAX;
|
return USHRT_MAX;
|
||||||
|
|
||||||
|
case _SC_GETGR_R_SIZE_MAX:
|
||||||
|
return NSS_BUFLEN_GROUP;
|
||||||
|
|
||||||
|
case _SC_GETPW_R_SIZE_MAX:
|
||||||
|
return NSS_BUFLEN_PASSWD;
|
||||||
|
|
||||||
case _SC_ARG_MAX:
|
case _SC_ARG_MAX:
|
||||||
case _SC_CHILD_MAX:
|
case _SC_CHILD_MAX:
|
||||||
case _SC_CLK_TCK:
|
case _SC_CLK_TCK:
|
||||||
@ -211,8 +218,6 @@ __sysconf (name)
|
|||||||
|
|
||||||
case _SC_THREADS:
|
case _SC_THREADS:
|
||||||
case _SC_THREAD_SAFE_FUNCTIONS:
|
case _SC_THREAD_SAFE_FUNCTIONS:
|
||||||
case _SC_GETGR_R_SIZE_MAX:
|
|
||||||
case _SC_GETPW_R_SIZE_MAX:
|
|
||||||
case _SC_LOGIN_NAME_MAX:
|
case _SC_LOGIN_NAME_MAX:
|
||||||
case _SC_TTY_NAME_MAX:
|
case _SC_TTY_NAME_MAX:
|
||||||
case _SC_THREAD_DESTRUCTOR_ITERATIONS:
|
case _SC_THREAD_DESTRUCTOR_ITERATIONS:
|
||||||
|
|||||||
@ -1,4 +1,4 @@
|
|||||||
/* Copyright (C) 1991,93,1995-1997,1999-2002 Free Software Foundation, Inc.
|
/* Copyright (C) 1991,93,1995-1997,1999-2003 Free Software Foundation, Inc.
|
||||||
This file is part of the GNU C Library.
|
This file is part of the GNU C Library.
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
The GNU C Library is free software; you can redistribute it and/or
|
||||||
@ -509,18 +509,10 @@ __sysconf (name)
|
|||||||
#endif
|
#endif
|
||||||
|
|
||||||
case _SC_GETGR_R_SIZE_MAX:
|
case _SC_GETGR_R_SIZE_MAX:
|
||||||
#ifdef NSS_BUFLEN_GROUP
|
|
||||||
return NSS_BUFLEN_GROUP;
|
return NSS_BUFLEN_GROUP;
|
||||||
#else
|
|
||||||
return -1;
|
|
||||||
#endif
|
|
||||||
|
|
||||||
case _SC_GETPW_R_SIZE_MAX:
|
case _SC_GETPW_R_SIZE_MAX:
|
||||||
#ifdef NSS_BUFLEN_PASSWD
|
|
||||||
return NSS_BUFLEN_PASSWD;
|
return NSS_BUFLEN_PASSWD;
|
||||||
#else
|
|
||||||
return -1;
|
|
||||||
#endif
|
|
||||||
|
|
||||||
case _SC_LOGIN_NAME_MAX:
|
case _SC_LOGIN_NAME_MAX:
|
||||||
#ifdef _POSIX_LOGIN_NAME_MAX
|
#ifdef _POSIX_LOGIN_NAME_MAX
|
||||||
|
|||||||
@ -64,7 +64,7 @@ case "$machine" in
|
|||||||
arch_minimum_kernel=2.4.0
|
arch_minimum_kernel=2.4.0
|
||||||
;;
|
;;
|
||||||
hppa*)
|
hppa*)
|
||||||
libc_cv_gcc_unwind_find_fde=yes
|
libc_cv_gcc_unwind_find_fde=yes
|
||||||
arch_minimum_kernel=2.4.19
|
arch_minimum_kernel=2.4.19
|
||||||
;;
|
;;
|
||||||
m68k*)
|
m68k*)
|
||||||
@ -80,7 +80,7 @@ case "$machine" in
|
|||||||
arch_minimum_kernel=2.0.10
|
arch_minimum_kernel=2.0.10
|
||||||
;;
|
;;
|
||||||
powerpc/powerpc64)
|
powerpc/powerpc64)
|
||||||
arch_minimum_kernel=2.4.19
|
arch_minimum_kernel=2.4.21
|
||||||
;;
|
;;
|
||||||
s390/s390-32)
|
s390/s390-32)
|
||||||
libc_cv_gcc_unwind_find_fde=yes
|
libc_cv_gcc_unwind_find_fde=yes
|
||||||
|
|||||||
138
sysdeps/unix/sysv/linux/powerpc/powerpc64/getcontext.S
Normal file
138
sysdeps/unix/sysv/linux/powerpc/powerpc64/getcontext.S
Normal file
@ -0,0 +1,138 @@
|
|||||||
|
/* Save current 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(__getcontext)
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_R0*8))(r3)
|
||||||
|
std r1,(SIGCONTEXT_GP_REGS+(PT_R1*8))(r3)
|
||||||
|
mflr r0
|
||||||
|
std r2,(SIGCONTEXT_GP_REGS+(PT_R2*8))(r3)
|
||||||
|
std r0,FRAME_LR_SAVE(r1)
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_LNK*8))(r3)
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_NIP*8))(r3)
|
||||||
|
stdu r1,-128(r1)
|
||||||
|
std r4,(SIGCONTEXT_GP_REGS+(PT_R4*8))(r3)
|
||||||
|
std r5,(SIGCONTEXT_GP_REGS+(PT_R5*8))(r3)
|
||||||
|
std r6,(SIGCONTEXT_GP_REGS+(PT_R6*8))(r3)
|
||||||
|
std r7,(SIGCONTEXT_GP_REGS+(PT_R7*8))(r3)
|
||||||
|
std r8,(SIGCONTEXT_GP_REGS+(PT_R8*8))(r3)
|
||||||
|
std r9,(SIGCONTEXT_GP_REGS+(PT_R9*8))(r3)
|
||||||
|
std r10,(SIGCONTEXT_GP_REGS+(PT_R10*8))(r3)
|
||||||
|
std r11,(SIGCONTEXT_GP_REGS+(PT_R11*8))(r3)
|
||||||
|
std r12,(SIGCONTEXT_GP_REGS+(PT_R12*8))(r3)
|
||||||
|
std r13,(SIGCONTEXT_GP_REGS+(PT_R13*8))(r3)
|
||||||
|
std r14,(SIGCONTEXT_GP_REGS+(PT_R14*8))(r3)
|
||||||
|
std r15,(SIGCONTEXT_GP_REGS+(PT_R15*8))(r3)
|
||||||
|
std r16,(SIGCONTEXT_GP_REGS+(PT_R16*8))(r3)
|
||||||
|
std r17,(SIGCONTEXT_GP_REGS+(PT_R17*8))(r3)
|
||||||
|
std r18,(SIGCONTEXT_GP_REGS+(PT_R18*8))(r3)
|
||||||
|
std r19,(SIGCONTEXT_GP_REGS+(PT_R19*8))(r3)
|
||||||
|
std r20,(SIGCONTEXT_GP_REGS+(PT_R20*8))(r3)
|
||||||
|
std r21,(SIGCONTEXT_GP_REGS+(PT_R21*8))(r3)
|
||||||
|
std r22,(SIGCONTEXT_GP_REGS+(PT_R22*8))(r3)
|
||||||
|
std r23,(SIGCONTEXT_GP_REGS+(PT_R23*8))(r3)
|
||||||
|
std r24,(SIGCONTEXT_GP_REGS+(PT_R24*8))(r3)
|
||||||
|
std r25,(SIGCONTEXT_GP_REGS+(PT_R25*8))(r3)
|
||||||
|
std r26,(SIGCONTEXT_GP_REGS+(PT_R26*8))(r3)
|
||||||
|
std r27,(SIGCONTEXT_GP_REGS+(PT_R27*8))(r3)
|
||||||
|
std r28,(SIGCONTEXT_GP_REGS+(PT_R28*8))(r3)
|
||||||
|
std r29,(SIGCONTEXT_GP_REGS+(PT_R29*8))(r3)
|
||||||
|
std r30,(SIGCONTEXT_GP_REGS+(PT_R30*8))(r3)
|
||||||
|
std r31,(SIGCONTEXT_GP_REGS+(PT_R31*8))(r3)
|
||||||
|
mfctr r0
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_CTR*8))(r3)
|
||||||
|
mfxer r0
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_XER*8))(r3)
|
||||||
|
mfcr r0
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_CCR*8))(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
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_R3*8))(r3)
|
||||||
|
|
||||||
|
/* Zero fill fields that can't be set in user state or are unused. */
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_MSR*8))(r3)
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(34*8))(r3)
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_SOFTE*8))(r3)
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(40*8))(r3)
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(41*8))(r3)
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(42*8))(r3)
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_RESULT*8))(r3)
|
||||||
|
|
||||||
|
/* Set the PT_REGS pointer to the address of sigcontext's gp_regs
|
||||||
|
field. Struct pt_regs and elf_gregset_t are the same thing.
|
||||||
|
We kept the regs field for backwards compatibility with
|
||||||
|
libraries built before we extended sigcontext. */
|
||||||
|
addi r0,r3,SIGCONTEXT_GP_REGS
|
||||||
|
std r0,SIGCONTEXT_PT_REGS(r3)
|
||||||
|
|
||||||
|
stfd fp0,(SIGCONTEXT_FP_REGS+(PT_R0*8))(r3)
|
||||||
|
stfd fp1,(SIGCONTEXT_FP_REGS+(PT_R1*8))(r3)
|
||||||
|
stfd fp2,(SIGCONTEXT_FP_REGS+(PT_R2*8))(r3)
|
||||||
|
stfd fp3,(SIGCONTEXT_FP_REGS+(PT_R3*8))(r3)
|
||||||
|
stfd fp4,(SIGCONTEXT_FP_REGS+(PT_R4*8))(r3)
|
||||||
|
stfd fp5,(SIGCONTEXT_FP_REGS+(PT_R5*8))(r3)
|
||||||
|
stfd fp6,(SIGCONTEXT_FP_REGS+(PT_R6*8))(r3)
|
||||||
|
stfd fp7,(SIGCONTEXT_FP_REGS+(PT_R7*8))(r3)
|
||||||
|
stfd fp8,(SIGCONTEXT_FP_REGS+(PT_R8*8))(r3)
|
||||||
|
stfd fp9,(SIGCONTEXT_FP_REGS+(PT_R9*8))(r3)
|
||||||
|
stfd fp10,(SIGCONTEXT_FP_REGS+(PT_R10*8))(r3)
|
||||||
|
stfd fp11,(SIGCONTEXT_FP_REGS+(PT_R11*8))(r3)
|
||||||
|
stfd fp12,(SIGCONTEXT_FP_REGS+(PT_R12*8))(r3)
|
||||||
|
stfd fp13,(SIGCONTEXT_FP_REGS+(PT_R13*8))(r3)
|
||||||
|
stfd fp14,(SIGCONTEXT_FP_REGS+(PT_R14*8))(r3)
|
||||||
|
stfd fp15,(SIGCONTEXT_FP_REGS+(PT_R15*8))(r3)
|
||||||
|
stfd fp16,(SIGCONTEXT_FP_REGS+(PT_R16*8))(r3)
|
||||||
|
stfd fp17,(SIGCONTEXT_FP_REGS+(PT_R17*8))(r3)
|
||||||
|
stfd fp18,(SIGCONTEXT_FP_REGS+(PT_R18*8))(r3)
|
||||||
|
stfd fp19,(SIGCONTEXT_FP_REGS+(PT_R19*8))(r3)
|
||||||
|
stfd fp20,(SIGCONTEXT_FP_REGS+(PT_R20*8))(r3)
|
||||||
|
stfd fp21,(SIGCONTEXT_FP_REGS+(PT_R21*8))(r3)
|
||||||
|
stfd fp22,(SIGCONTEXT_FP_REGS+(PT_R22*8))(r3)
|
||||||
|
stfd fp23,(SIGCONTEXT_FP_REGS+(PT_R23*8))(r3)
|
||||||
|
stfd fp24,(SIGCONTEXT_FP_REGS+(PT_R24*8))(r3)
|
||||||
|
stfd fp25,(SIGCONTEXT_FP_REGS+(PT_R25*8))(r3)
|
||||||
|
stfd fp26,(SIGCONTEXT_FP_REGS+(PT_R26*8))(r3)
|
||||||
|
stfd fp27,(SIGCONTEXT_FP_REGS+(PT_R27*8))(r3)
|
||||||
|
stfd fp28,(SIGCONTEXT_FP_REGS+(PT_R28*8))(r3)
|
||||||
|
stfd fp29,(SIGCONTEXT_GP_REGS+(PT_R29*8))(r3)
|
||||||
|
mffs fp0
|
||||||
|
stfd fp30,(SIGCONTEXT_FP_REGS+(PT_R30*8))(r3)
|
||||||
|
stfd fp31,(SIGCONTEXT_FP_REGS+(PT_R31*8))(r3)
|
||||||
|
stfd fp0,(SIGCONTEXT_FP_REGS+(32*8))(r3)
|
||||||
|
|
||||||
|
addi r5,r3,UCONTEXT_SIGMASK
|
||||||
|
li r4,0
|
||||||
|
li r3,SIG_BLOCK
|
||||||
|
bl .sigprocmask
|
||||||
|
nop
|
||||||
|
|
||||||
|
ld r0,128+FRAME_LR_SAVE(r1)
|
||||||
|
addi r1,r1,128
|
||||||
|
mtlr r0
|
||||||
|
blr
|
||||||
|
PSEUDO_END(__getcontext)
|
||||||
|
|
||||||
|
weak_alias(__getcontext, getcontext)
|
||||||
161
sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S
Normal file
161
sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S
Normal file
@ -0,0 +1,161 @@
|
|||||||
|
/* Create 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(__makecontext)
|
||||||
|
/* Save parameters into the parameter save area of callers frame. */
|
||||||
|
std r3,FRAME_PARM1_SAVE(r1) /* ucontext_t *ucp */
|
||||||
|
std r4,FRAME_PARM2_SAVE(r1) /* void (*func)(void) */
|
||||||
|
std r5,FRAME_PARM3_SAVE(r1) /* int argc */
|
||||||
|
std r6,FRAME_PARM4_SAVE(r1) /* ... */
|
||||||
|
std r7,FRAME_PARM5_SAVE(r1)
|
||||||
|
std r8,FRAME_PARM6_SAVE(r1)
|
||||||
|
std r9,FRAME_PARM7_SAVE(r1)
|
||||||
|
std r10,FRAME_PARM8_SAVE(r1)
|
||||||
|
mflr r0
|
||||||
|
/* Get the address of the target functions first parameter. */
|
||||||
|
addi r6,r1,FRAME_PARM4_SAVE
|
||||||
|
std r0,FRAME_LR_SAVE(r1)
|
||||||
|
stdu r1,-128(r1)
|
||||||
|
|
||||||
|
/* Get the ucontexts stack pointer and size. Compute the top of stack
|
||||||
|
and round down to a quadword boundary. Then stack a dummy frame
|
||||||
|
with a null back chain. We store the context pointer in the frames
|
||||||
|
"compiler double word" field so we can recover if is the function
|
||||||
|
returns. Finally save the callers link register and TOC pointer
|
||||||
|
into this frame so the debugger can display a backtrace.
|
||||||
|
*/
|
||||||
|
ld r7,UCONTEXT_STACK_SP(r3)
|
||||||
|
ld r0,UCONTEXT_STACK_SIZE(r3)
|
||||||
|
add r7,r7,r0
|
||||||
|
clrrdi r7,r7,4
|
||||||
|
li r0,0
|
||||||
|
stdu r0,-48(r7)
|
||||||
|
std r3,24(r7)
|
||||||
|
mflr r0
|
||||||
|
std r2,FRAME_TOC_SAVE(r7) /* Store the TOC pointer for later. */
|
||||||
|
std r0,FRAME_LR_SAVE(r7)
|
||||||
|
|
||||||
|
/* Now we need to stack another frame to hold the parameter save area
|
||||||
|
for the function. We need to allocate a frame with the minimum 48
|
||||||
|
byte header and 8 parameter register. However if there are more
|
||||||
|
than 8 parameters addition space is need to hold all the parameters.
|
||||||
|
The total size it rounded up to a quadword multiple then a frame is
|
||||||
|
stacked. This address is stored in the ucontext as GPR 1. */
|
||||||
|
|
||||||
|
cmpdi cr1,r5,8
|
||||||
|
sldi r8,r5,3
|
||||||
|
bgt cr1,L(gt8)
|
||||||
|
li r8,64
|
||||||
|
L(gt8):
|
||||||
|
addi r8,r8,FRAME_PARM_SAVE+8 /* Add header plus rounding factor. */
|
||||||
|
clrrdi r8,r8,4 /* Round down to quadword. */
|
||||||
|
|
||||||
|
subf r8,r8,r7
|
||||||
|
std r7,0(r8) /* Stack the frame. */
|
||||||
|
std r8,(SIGCONTEXT_GP_REGS+(PT_R1*8))(r3)
|
||||||
|
|
||||||
|
/* Now we need to copy the target functions parameters. The functions
|
||||||
|
parameters are saved in the parameter save area. We skip over the
|
||||||
|
first three parameters and copy up to 8 double word into the
|
||||||
|
SIGCONTEXT_GP_REGS starting with R3. If there are more than 8
|
||||||
|
parameters then doublewords 8-N are copied into the parameter
|
||||||
|
save area of the context frame. */
|
||||||
|
cmpdi r5,0
|
||||||
|
beq L(noparms)
|
||||||
|
mr r0,r5
|
||||||
|
ble cr1,L(le8)
|
||||||
|
li r0,8
|
||||||
|
L(le8):
|
||||||
|
mtctr r0
|
||||||
|
addi r7,r6,-8
|
||||||
|
addi r9,r3,(SIGCONTEXT_GP_REGS+(PT_R3*8)-8)
|
||||||
|
L(parmloop2):
|
||||||
|
ldu r0,8(r7)
|
||||||
|
stdu r0,8(r9)
|
||||||
|
bdnz L(parmloop2)
|
||||||
|
|
||||||
|
addi r0,r5,-8
|
||||||
|
ble cr1,L(noparms)
|
||||||
|
mtctr r0
|
||||||
|
addi r9,r8,FRAME_PARM9_SAVE-8
|
||||||
|
L(parmloop):
|
||||||
|
ldu r0,8(r7)
|
||||||
|
stdu r0,8(r9)
|
||||||
|
bdnz L(parmloop)
|
||||||
|
|
||||||
|
L(noparms):
|
||||||
|
|
||||||
|
/* Load the function address and TOC from the function descriptor
|
||||||
|
and store them in the ucontext as NIP and r2. Store the 3rd
|
||||||
|
field of the function descriptor into the ucontext as r11 in case
|
||||||
|
the calling language needs the "environment pointer". */
|
||||||
|
ld r0,0(r4)
|
||||||
|
ld r10,8(r4);
|
||||||
|
ld r9,16(r4);
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_NIP*8))(r3)
|
||||||
|
std r10,(SIGCONTEXT_GP_REGS+(PT_R2*8))(r3)
|
||||||
|
std r9,(SIGCONTEXT_GP_REGS+(PT_R11*8))(r3)
|
||||||
|
|
||||||
|
/* If the target function returns we need to do some cleanup. We use a
|
||||||
|
code trick to get the address of our cleanup function into the link
|
||||||
|
register. Do not add any code between here and L(exitcode). */
|
||||||
|
bl L(gotexitcodeaddr);
|
||||||
|
|
||||||
|
/* This is the helper code which gets called if a function which
|
||||||
|
is registered with 'makecontext' returns. In this case we
|
||||||
|
have to install the context listed in the uc_link element of
|
||||||
|
the context 'makecontext' manipulated at the time of the
|
||||||
|
'makecontext' call. If the pointer is NULL the process must
|
||||||
|
terminate. */
|
||||||
|
L(exitcode):
|
||||||
|
/* Recover the ucontext and TOC from the dummy frame. */
|
||||||
|
ld r1,FRAME_BACKCHAIN(r1) /* Unstack the parameter save area frame. */
|
||||||
|
ld r3,FRAME_COMPILER_DW(r1)
|
||||||
|
ld r2,FRAME_TOC_SAVE(r1)
|
||||||
|
ld r3,UCONTEXT_LINK(r3) /* Load the resume context. */
|
||||||
|
cmpdi r3,0
|
||||||
|
beq L(BADSTATUS)
|
||||||
|
bl JUMPTARGET(__setcontext)
|
||||||
|
nop
|
||||||
|
|
||||||
|
L(BADSTATUS):
|
||||||
|
/* If setcontext returns (which can happen if the syscall fails) we will
|
||||||
|
exit the program with error status (-1). */
|
||||||
|
li r3,-1
|
||||||
|
b JUMPTARGET(exit);
|
||||||
|
|
||||||
|
/* The address of the exit code is in the link register. Store the lr
|
||||||
|
in the ucontext as LNK so the target function will return to our
|
||||||
|
exit code. */
|
||||||
|
L(gotexitcodeaddr):
|
||||||
|
mflr r0
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_LNK*8))(r3)
|
||||||
|
ld r0,128+FRAME_LR_SAVE(r1)
|
||||||
|
addi r1,r1,128
|
||||||
|
mtlr r0
|
||||||
|
blr
|
||||||
|
END(__makecontext)
|
||||||
|
|
||||||
|
weak_alias(__makecontext, makecontext)
|
||||||
162
sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S
Normal file
162
sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S
Normal file
@ -0,0 +1,162 @@
|
|||||||
|
/* Switch to 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
|
||||||
|
std r31,-8(1)
|
||||||
|
std r0,FRAME_LR_SAVE(r1)
|
||||||
|
stdu r1,-128(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
|
||||||
|
* msr and ctr. We don't restore r13 since it will be used as
|
||||||
|
* the TLS pointer. */
|
||||||
|
lwz r0,(SIGCONTEXT_GP_REGS+(PT_MSR*8))(r31)
|
||||||
|
cmpdi r0,0
|
||||||
|
bne L(do_sigret)
|
||||||
|
|
||||||
|
li r5,0
|
||||||
|
addi r4,r3,UCONTEXT_SIGMASK
|
||||||
|
li r3,SIG_SETMASK
|
||||||
|
bl .sigprocmask
|
||||||
|
nop
|
||||||
|
cmpdi r3,0
|
||||||
|
bne L(error_exit)
|
||||||
|
|
||||||
|
lfd fp0,(SIGCONTEXT_FP_REGS+(32*8))(r31)
|
||||||
|
lfd fp31,(SIGCONTEXT_FP_REGS+(PT_R31*8))(r31)
|
||||||
|
lfd fp30,(SIGCONTEXT_FP_REGS+(PT_R30*8))(r31)
|
||||||
|
mtfsf 0xff,fp0
|
||||||
|
lfd fp29,(SIGCONTEXT_FP_REGS+(PT_R29*8))(r31)
|
||||||
|
lfd fp28,(SIGCONTEXT_FP_REGS+(PT_R28*8))(r31)
|
||||||
|
lfd fp27,(SIGCONTEXT_FP_REGS+(PT_R27*8))(r31)
|
||||||
|
lfd fp26,(SIGCONTEXT_FP_REGS+(PT_R26*8))(r31)
|
||||||
|
lfd fp25,(SIGCONTEXT_FP_REGS+(PT_R25*8))(r31)
|
||||||
|
lfd fp24,(SIGCONTEXT_FP_REGS+(PT_R24*8))(r31)
|
||||||
|
lfd fp23,(SIGCONTEXT_FP_REGS+(PT_R23*8))(r31)
|
||||||
|
lfd fp22,(SIGCONTEXT_FP_REGS+(PT_R22*8))(r31)
|
||||||
|
lfd fp21,(SIGCONTEXT_FP_REGS+(PT_R21*8))(r31)
|
||||||
|
lfd fp20,(SIGCONTEXT_FP_REGS+(PT_R20*8))(r31)
|
||||||
|
lfd fp19,(SIGCONTEXT_FP_REGS+(PT_R19*8))(r31)
|
||||||
|
lfd fp18,(SIGCONTEXT_FP_REGS+(PT_R18*8))(r31)
|
||||||
|
lfd fp17,(SIGCONTEXT_FP_REGS+(PT_R17*8))(r31)
|
||||||
|
lfd fp16,(SIGCONTEXT_FP_REGS+(PT_R16*8))(r31)
|
||||||
|
lfd fp15,(SIGCONTEXT_FP_REGS+(PT_R15*8))(r31)
|
||||||
|
lfd fp14,(SIGCONTEXT_FP_REGS+(PT_R14*8))(r31)
|
||||||
|
lfd fp13,(SIGCONTEXT_FP_REGS+(PT_R13*8))(r31)
|
||||||
|
lfd fp12,(SIGCONTEXT_FP_REGS+(PT_R12*8))(r31)
|
||||||
|
lfd fp11,(SIGCONTEXT_FP_REGS+(PT_R11*8))(r31)
|
||||||
|
lfd fp10,(SIGCONTEXT_FP_REGS+(PT_R10*8))(r31)
|
||||||
|
lfd fp9,(SIGCONTEXT_FP_REGS+(PT_R9*8))(r31)
|
||||||
|
lfd fp8,(SIGCONTEXT_FP_REGS+(PT_R8*8))(r31)
|
||||||
|
lfd fp7,(SIGCONTEXT_FP_REGS+(PT_R7*8))(r31)
|
||||||
|
lfd fp6,(SIGCONTEXT_FP_REGS+(PT_R6*8))(r31)
|
||||||
|
lfd fp5,(SIGCONTEXT_FP_REGS+(PT_R5*8))(r31)
|
||||||
|
lfd fp4,(SIGCONTEXT_FP_REGS+(PT_R4*8))(r31)
|
||||||
|
lfd fp3,(SIGCONTEXT_FP_REGS+(PT_R3*8))(r31)
|
||||||
|
lfd fp2,(SIGCONTEXT_FP_REGS+(PT_R2*8))(r31)
|
||||||
|
lfd fp1,(SIGCONTEXT_FP_REGS+(PT_R1*8))(r31)
|
||||||
|
lfd fp0,(SIGCONTEXT_FP_REGS+(PT_R0*8))(r31)
|
||||||
|
|
||||||
|
ld r0,(SIGCONTEXT_GP_REGS+(PT_LNK*8))(r31)
|
||||||
|
ld r1,(SIGCONTEXT_GP_REGS+(PT_R1*8))(r31)
|
||||||
|
mtlr r0
|
||||||
|
ld r2,(SIGCONTEXT_GP_REGS+(PT_R2*8))(r31)
|
||||||
|
ld r0,(SIGCONTEXT_GP_REGS+(PT_XER*8))(r31)
|
||||||
|
ld r3,(SIGCONTEXT_GP_REGS+(PT_R3*8))(r31)
|
||||||
|
mtxer r0
|
||||||
|
ld r4,(SIGCONTEXT_GP_REGS+(PT_R4*8))(r31)
|
||||||
|
ld r0,(SIGCONTEXT_GP_REGS+(PT_CCR*8))(r31)
|
||||||
|
ld r5,(SIGCONTEXT_GP_REGS+(PT_R5*8))(r31)
|
||||||
|
mfcr r0
|
||||||
|
ld r6,(SIGCONTEXT_GP_REGS+(PT_R6*8))(r31)
|
||||||
|
ld r7,(SIGCONTEXT_GP_REGS+(PT_R7*8))(r31)
|
||||||
|
ld r8,(SIGCONTEXT_GP_REGS+(PT_R8*8))(r31)
|
||||||
|
ld r9,(SIGCONTEXT_GP_REGS+(PT_R9*8))(r31)
|
||||||
|
ld r10,(SIGCONTEXT_GP_REGS+(PT_R10*8))(r31)
|
||||||
|
ld r11,(SIGCONTEXT_GP_REGS+(PT_R11*8))(r31)
|
||||||
|
ld r12,(SIGCONTEXT_GP_REGS+(PT_R12*8))(r31)
|
||||||
|
/* Don't reload the thread ID or TLS pointer (r13). */
|
||||||
|
ld r14,(SIGCONTEXT_GP_REGS+(PT_R14*8))(r31)
|
||||||
|
ld r15,(SIGCONTEXT_GP_REGS+(PT_R15*8))(r31)
|
||||||
|
ld r16,(SIGCONTEXT_GP_REGS+(PT_R16*8))(r31)
|
||||||
|
ld r17,(SIGCONTEXT_GP_REGS+(PT_R17*8))(r31)
|
||||||
|
ld r18,(SIGCONTEXT_GP_REGS+(PT_R18*8))(r31)
|
||||||
|
ld r19,(SIGCONTEXT_GP_REGS+(PT_R19*8))(r31)
|
||||||
|
ld r20,(SIGCONTEXT_GP_REGS+(PT_R20*8))(r31)
|
||||||
|
ld r21,(SIGCONTEXT_GP_REGS+(PT_R21*8))(r31)
|
||||||
|
ld r22,(SIGCONTEXT_GP_REGS+(PT_R22*8))(r31)
|
||||||
|
ld r23,(SIGCONTEXT_GP_REGS+(PT_R23*8))(r31)
|
||||||
|
ld r24,(SIGCONTEXT_GP_REGS+(PT_R24*8))(r31)
|
||||||
|
ld r25,(SIGCONTEXT_GP_REGS+(PT_R25*8))(r31)
|
||||||
|
ld r26,(SIGCONTEXT_GP_REGS+(PT_R26*8))(r31)
|
||||||
|
ld r27,(SIGCONTEXT_GP_REGS+(PT_R27*8))(r31)
|
||||||
|
ld r28,(SIGCONTEXT_GP_REGS+(PT_R28*8))(r31)
|
||||||
|
ld r29,(SIGCONTEXT_GP_REGS+(PT_R29*8))(r31)
|
||||||
|
ld r30,(SIGCONTEXT_GP_REGS+(PT_R30*8))(r31)
|
||||||
|
|
||||||
|
/* Now we branch to the "Next Instruction Pointer" from the saved
|
||||||
|
context. With the powerpc64 instruction set there is no good way to
|
||||||
|
do this (from user state) without clobbering either the LR or CTR.
|
||||||
|
The makecontext and swapcontext functions depend on the callers
|
||||||
|
LR being preserved so we use the CTR. */
|
||||||
|
ld r0,(SIGCONTEXT_GP_REGS+(PT_NIP*8))(r31)
|
||||||
|
mtctr r0
|
||||||
|
ld r0,(SIGCONTEXT_GP_REGS+(PT_R0*8))(r31)
|
||||||
|
ld r31,(SIGCONTEXT_GP_REGS+(PT_R31*8))(r31)
|
||||||
|
bctr
|
||||||
|
|
||||||
|
L(error_exit):
|
||||||
|
ld r0,128+FRAME_LR_SAVE(r1)
|
||||||
|
addi r1,r1,128
|
||||||
|
mtlr r0
|
||||||
|
ld r31,-8(r1)
|
||||||
|
blr
|
||||||
|
|
||||||
|
/* At this point we assume that the ucontext was created by a
|
||||||
|
rt_signal and we should use rt_sigreturn to restore the original
|
||||||
|
state. As of the 2.4.21 kernel the ucontext is the first thing
|
||||||
|
(offset 0) in the rt_signal frame and rt_sigreturn expects the
|
||||||
|
ucontext address in R1. Normally the rt-signal trampoline handles
|
||||||
|
this by popping dummy frame before the rt_signal syscall. In our
|
||||||
|
case the stack may not be in its original (signal handler return with
|
||||||
|
R1 pointing at the dummy frame) state. We do have the ucontext
|
||||||
|
address in R3, so simply copy R3 to R1 before the syscall. */
|
||||||
|
L(do_sigret):
|
||||||
|
mr r1,r3,
|
||||||
|
li r0,SYS_ify(rt_sigreturn)
|
||||||
|
sc
|
||||||
|
/* No return. */
|
||||||
|
|
||||||
|
PSEUDO_END(__setcontext)
|
||||||
|
|
||||||
|
weak_alias(__setcontext, setcontext)
|
||||||
257
sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S
Normal file
257
sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S
Normal file
@ -0,0 +1,257 @@
|
|||||||
|
/* Save current context and install the given one.
|
||||||
|
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)
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_R0*8))(r3)
|
||||||
|
std r1,(SIGCONTEXT_GP_REGS+(PT_R1*8))(r3)
|
||||||
|
mflr r0
|
||||||
|
std r31,-8(1)
|
||||||
|
std r2,(SIGCONTEXT_GP_REGS+(PT_R2*8))(r3)
|
||||||
|
std r0,FRAME_LR_SAVE(r1)
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_LNK*8))(r3)
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_NIP*8))(r3)
|
||||||
|
stdu r1,-128(r1)
|
||||||
|
std r4,(SIGCONTEXT_GP_REGS+(PT_R4*8))(r3)
|
||||||
|
std r5,(SIGCONTEXT_GP_REGS+(PT_R5*8))(r3)
|
||||||
|
std r6,(SIGCONTEXT_GP_REGS+(PT_R6*8))(r3)
|
||||||
|
std r7,(SIGCONTEXT_GP_REGS+(PT_R7*8))(r3)
|
||||||
|
std r8,(SIGCONTEXT_GP_REGS+(PT_R8*8))(r3)
|
||||||
|
std r9,(SIGCONTEXT_GP_REGS+(PT_R9*8))(r3)
|
||||||
|
std r10,(SIGCONTEXT_GP_REGS+(PT_R10*8))(r3)
|
||||||
|
std r11,(SIGCONTEXT_GP_REGS+(PT_R11*8))(r3)
|
||||||
|
std r12,(SIGCONTEXT_GP_REGS+(PT_R12*8))(r3)
|
||||||
|
std r13,(SIGCONTEXT_GP_REGS+(PT_R13*8))(r3)
|
||||||
|
std r14,(SIGCONTEXT_GP_REGS+(PT_R14*8))(r3)
|
||||||
|
std r15,(SIGCONTEXT_GP_REGS+(PT_R15*8))(r3)
|
||||||
|
std r16,(SIGCONTEXT_GP_REGS+(PT_R16*8))(r3)
|
||||||
|
std r17,(SIGCONTEXT_GP_REGS+(PT_R17*8))(r3)
|
||||||
|
std r18,(SIGCONTEXT_GP_REGS+(PT_R18*8))(r3)
|
||||||
|
std r19,(SIGCONTEXT_GP_REGS+(PT_R19*8))(r3)
|
||||||
|
std r20,(SIGCONTEXT_GP_REGS+(PT_R20*8))(r3)
|
||||||
|
std r21,(SIGCONTEXT_GP_REGS+(PT_R21*8))(r3)
|
||||||
|
std r22,(SIGCONTEXT_GP_REGS+(PT_R22*8))(r3)
|
||||||
|
std r23,(SIGCONTEXT_GP_REGS+(PT_R23*8))(r3)
|
||||||
|
std r24,(SIGCONTEXT_GP_REGS+(PT_R24*8))(r3)
|
||||||
|
std r25,(SIGCONTEXT_GP_REGS+(PT_R25*8))(r3)
|
||||||
|
std r26,(SIGCONTEXT_GP_REGS+(PT_R26*8))(r3)
|
||||||
|
std r27,(SIGCONTEXT_GP_REGS+(PT_R27*8))(r3)
|
||||||
|
std r28,(SIGCONTEXT_GP_REGS+(PT_R28*8))(r3)
|
||||||
|
std r29,(SIGCONTEXT_GP_REGS+(PT_R29*8))(r3)
|
||||||
|
std r30,(SIGCONTEXT_GP_REGS+(PT_R30*8))(r3)
|
||||||
|
std r31,(SIGCONTEXT_GP_REGS+(PT_R31*8))(r3)
|
||||||
|
mfctr r0
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_CTR*8))(r3)
|
||||||
|
mfxer r0
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_XER*8))(r3)
|
||||||
|
mfcr r0
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_CCR*8))(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
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_R3*8))(r3)
|
||||||
|
|
||||||
|
/* Zero fill fields that can't be set in user state or are unused. */
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_MSR*8))(r3)
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(34*8))(r3)
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_SOFTE*8))(r3)
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(40*8))(r3)
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(41*8))(r3)
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(42*8))(r3)
|
||||||
|
std r0,(SIGCONTEXT_GP_REGS+(PT_RESULT*8))(r3)
|
||||||
|
|
||||||
|
/* Set the PT_REGS pointer to the address of sigcontext gp_regs
|
||||||
|
field. Struct pt_regs and elf_gregset_t are the same thing.
|
||||||
|
We kept the regs field for backwards compatibility with
|
||||||
|
libraries built before we extended sigcontext. */
|
||||||
|
addi r0,r3,SIGCONTEXT_GP_REGS
|
||||||
|
std r0,SIGCONTEXT_PT_REGS(r3)
|
||||||
|
|
||||||
|
stfd fp0,(SIGCONTEXT_FP_REGS+(PT_R0*8))(r3)
|
||||||
|
stfd fp1,(SIGCONTEXT_FP_REGS+(PT_R1*8))(r3)
|
||||||
|
stfd fp2,(SIGCONTEXT_FP_REGS+(PT_R2*8))(r3)
|
||||||
|
stfd fp3,(SIGCONTEXT_FP_REGS+(PT_R3*8))(r3)
|
||||||
|
stfd fp4,(SIGCONTEXT_FP_REGS+(PT_R4*8))(r3)
|
||||||
|
stfd fp5,(SIGCONTEXT_FP_REGS+(PT_R5*8))(r3)
|
||||||
|
stfd fp6,(SIGCONTEXT_FP_REGS+(PT_R6*8))(r3)
|
||||||
|
stfd fp7,(SIGCONTEXT_FP_REGS+(PT_R7*8))(r3)
|
||||||
|
stfd fp8,(SIGCONTEXT_FP_REGS+(PT_R8*8))(r3)
|
||||||
|
stfd fp9,(SIGCONTEXT_FP_REGS+(PT_R9*8))(r3)
|
||||||
|
stfd fp10,(SIGCONTEXT_FP_REGS+(PT_R10*8))(r3)
|
||||||
|
stfd fp11,(SIGCONTEXT_FP_REGS+(PT_R11*8))(r3)
|
||||||
|
stfd fp12,(SIGCONTEXT_FP_REGS+(PT_R12*8))(r3)
|
||||||
|
stfd fp13,(SIGCONTEXT_FP_REGS+(PT_R13*8))(r3)
|
||||||
|
stfd fp14,(SIGCONTEXT_FP_REGS+(PT_R14*8))(r3)
|
||||||
|
stfd fp15,(SIGCONTEXT_FP_REGS+(PT_R15*8))(r3)
|
||||||
|
stfd fp16,(SIGCONTEXT_FP_REGS+(PT_R16*8))(r3)
|
||||||
|
stfd fp17,(SIGCONTEXT_FP_REGS+(PT_R17*8))(r3)
|
||||||
|
stfd fp18,(SIGCONTEXT_FP_REGS+(PT_R18*8))(r3)
|
||||||
|
stfd fp19,(SIGCONTEXT_FP_REGS+(PT_R19*8))(r3)
|
||||||
|
stfd fp20,(SIGCONTEXT_FP_REGS+(PT_R20*8))(r3)
|
||||||
|
stfd fp21,(SIGCONTEXT_FP_REGS+(PT_R21*8))(r3)
|
||||||
|
stfd fp22,(SIGCONTEXT_FP_REGS+(PT_R22*8))(r3)
|
||||||
|
stfd fp23,(SIGCONTEXT_FP_REGS+(PT_R23*8))(r3)
|
||||||
|
stfd fp24,(SIGCONTEXT_FP_REGS+(PT_R24*8))(r3)
|
||||||
|
stfd fp25,(SIGCONTEXT_FP_REGS+(PT_R25*8))(r3)
|
||||||
|
stfd fp26,(SIGCONTEXT_FP_REGS+(PT_R26*8))(r3)
|
||||||
|
stfd fp27,(SIGCONTEXT_FP_REGS+(PT_R27*8))(r3)
|
||||||
|
stfd fp28,(SIGCONTEXT_FP_REGS+(PT_R28*8))(r3)
|
||||||
|
stfd fp29,(SIGCONTEXT_GP_REGS+(PT_R29*8))(r3)
|
||||||
|
mffs fp0
|
||||||
|
stfd fp30,(SIGCONTEXT_FP_REGS+(PT_R30*8))(r3)
|
||||||
|
stfd fp31,(SIGCONTEXT_FP_REGS+(PT_R31*8))(r3)
|
||||||
|
stfd fp0,(SIGCONTEXT_FP_REGS+(32*8))(r3)
|
||||||
|
|
||||||
|
mr r31,r4
|
||||||
|
addi r5,r3,UCONTEXT_SIGMASK
|
||||||
|
addi r4,r4,UCONTEXT_SIGMASK
|
||||||
|
li r3,SIG_SETMASK
|
||||||
|
bl .sigprocmask
|
||||||
|
nop
|
||||||
|
cmpdi r3,0
|
||||||
|
bne L(error_exit)
|
||||||
|
|
||||||
|
/*
|
||||||
|
* If this 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
|
||||||
|
* msr and ctr. We don't restore r13 since it will be used as
|
||||||
|
* the TLS pointer. */
|
||||||
|
lwz r0,(SIGCONTEXT_GP_REGS+(PT_MSR*8))(r31)
|
||||||
|
cmpdi r0,0
|
||||||
|
bne L(do_sigret)
|
||||||
|
|
||||||
|
lfd fp0,(SIGCONTEXT_FP_REGS+(32*8))(r31)
|
||||||
|
lfd fp31,(SIGCONTEXT_FP_REGS+(PT_R31*8))(r31)
|
||||||
|
lfd fp30,(SIGCONTEXT_FP_REGS+(PT_R30*8))(r31)
|
||||||
|
mtfsf 0xff,fp0
|
||||||
|
lfd fp29,(SIGCONTEXT_FP_REGS+(PT_R29*8))(r31)
|
||||||
|
lfd fp28,(SIGCONTEXT_FP_REGS+(PT_R28*8))(r31)
|
||||||
|
lfd fp27,(SIGCONTEXT_FP_REGS+(PT_R27*8))(r31)
|
||||||
|
lfd fp26,(SIGCONTEXT_FP_REGS+(PT_R26*8))(r31)
|
||||||
|
lfd fp25,(SIGCONTEXT_FP_REGS+(PT_R25*8))(r31)
|
||||||
|
lfd fp24,(SIGCONTEXT_FP_REGS+(PT_R24*8))(r31)
|
||||||
|
lfd fp23,(SIGCONTEXT_FP_REGS+(PT_R23*8))(r31)
|
||||||
|
lfd fp22,(SIGCONTEXT_FP_REGS+(PT_R22*8))(r31)
|
||||||
|
lfd fp21,(SIGCONTEXT_FP_REGS+(PT_R21*8))(r31)
|
||||||
|
lfd fp20,(SIGCONTEXT_FP_REGS+(PT_R20*8))(r31)
|
||||||
|
lfd fp19,(SIGCONTEXT_FP_REGS+(PT_R19*8))(r31)
|
||||||
|
lfd fp18,(SIGCONTEXT_FP_REGS+(PT_R18*8))(r31)
|
||||||
|
lfd fp17,(SIGCONTEXT_FP_REGS+(PT_R17*8))(r31)
|
||||||
|
lfd fp16,(SIGCONTEXT_FP_REGS+(PT_R16*8))(r31)
|
||||||
|
lfd fp15,(SIGCONTEXT_FP_REGS+(PT_R15*8))(r31)
|
||||||
|
lfd fp14,(SIGCONTEXT_FP_REGS+(PT_R14*8))(r31)
|
||||||
|
lfd fp13,(SIGCONTEXT_FP_REGS+(PT_R13*8))(r31)
|
||||||
|
lfd fp12,(SIGCONTEXT_FP_REGS+(PT_R12*8))(r31)
|
||||||
|
lfd fp11,(SIGCONTEXT_FP_REGS+(PT_R11*8))(r31)
|
||||||
|
lfd fp10,(SIGCONTEXT_FP_REGS+(PT_R10*8))(r31)
|
||||||
|
lfd fp9,(SIGCONTEXT_FP_REGS+(PT_R9*8))(r31)
|
||||||
|
lfd fp8,(SIGCONTEXT_FP_REGS+(PT_R8*8))(r31)
|
||||||
|
lfd fp7,(SIGCONTEXT_FP_REGS+(PT_R7*8))(r31)
|
||||||
|
lfd fp6,(SIGCONTEXT_FP_REGS+(PT_R6*8))(r31)
|
||||||
|
lfd fp5,(SIGCONTEXT_FP_REGS+(PT_R5*8))(r31)
|
||||||
|
lfd fp4,(SIGCONTEXT_FP_REGS+(PT_R4*8))(r31)
|
||||||
|
lfd fp3,(SIGCONTEXT_FP_REGS+(PT_R3*8))(r31)
|
||||||
|
lfd fp2,(SIGCONTEXT_FP_REGS+(PT_R2*8))(r31)
|
||||||
|
lfd fp1,(SIGCONTEXT_FP_REGS+(PT_R1*8))(r31)
|
||||||
|
lfd fp0,(SIGCONTEXT_FP_REGS+(PT_R0*8))(r31)
|
||||||
|
|
||||||
|
ld r0,(SIGCONTEXT_GP_REGS+(PT_LNK*8))(r31)
|
||||||
|
ld r1,(SIGCONTEXT_GP_REGS+(PT_R1*8))(r31)
|
||||||
|
mtlr r0
|
||||||
|
ld r2,(SIGCONTEXT_GP_REGS+(PT_R2*8))(r31)
|
||||||
|
ld r0,(SIGCONTEXT_GP_REGS+(PT_XER*8))(r31)
|
||||||
|
ld r3,(SIGCONTEXT_GP_REGS+(PT_R3*8))(r31)
|
||||||
|
mtxer r0
|
||||||
|
ld r4,(SIGCONTEXT_GP_REGS+(PT_R4*8))(r31)
|
||||||
|
ld r0,(SIGCONTEXT_GP_REGS+(PT_CCR*8))(r31)
|
||||||
|
ld r5,(SIGCONTEXT_GP_REGS+(PT_R5*8))(r31)
|
||||||
|
mfcr r0
|
||||||
|
ld r6,(SIGCONTEXT_GP_REGS+(PT_R6*8))(r31)
|
||||||
|
ld r7,(SIGCONTEXT_GP_REGS+(PT_R7*8))(r31)
|
||||||
|
ld r8,(SIGCONTEXT_GP_REGS+(PT_R8*8))(r31)
|
||||||
|
ld r9,(SIGCONTEXT_GP_REGS+(PT_R9*8))(r31)
|
||||||
|
ld r10,(SIGCONTEXT_GP_REGS+(PT_R10*8))(r31)
|
||||||
|
ld r11,(SIGCONTEXT_GP_REGS+(PT_R11*8))(r31)
|
||||||
|
ld r12,(SIGCONTEXT_GP_REGS+(PT_R12*8))(r31)
|
||||||
|
/* Don't reload the thread ID or TLS pointer (r13). */
|
||||||
|
ld r14,(SIGCONTEXT_GP_REGS+(PT_R14*8))(r31)
|
||||||
|
ld r15,(SIGCONTEXT_GP_REGS+(PT_R15*8))(r31)
|
||||||
|
ld r16,(SIGCONTEXT_GP_REGS+(PT_R16*8))(r31)
|
||||||
|
ld r17,(SIGCONTEXT_GP_REGS+(PT_R17*8))(r31)
|
||||||
|
ld r18,(SIGCONTEXT_GP_REGS+(PT_R18*8))(r31)
|
||||||
|
ld r19,(SIGCONTEXT_GP_REGS+(PT_R19*8))(r31)
|
||||||
|
ld r20,(SIGCONTEXT_GP_REGS+(PT_R20*8))(r31)
|
||||||
|
ld r21,(SIGCONTEXT_GP_REGS+(PT_R21*8))(r31)
|
||||||
|
ld r22,(SIGCONTEXT_GP_REGS+(PT_R22*8))(r31)
|
||||||
|
ld r23,(SIGCONTEXT_GP_REGS+(PT_R23*8))(r31)
|
||||||
|
ld r24,(SIGCONTEXT_GP_REGS+(PT_R24*8))(r31)
|
||||||
|
ld r25,(SIGCONTEXT_GP_REGS+(PT_R25*8))(r31)
|
||||||
|
ld r26,(SIGCONTEXT_GP_REGS+(PT_R26*8))(r31)
|
||||||
|
ld r27,(SIGCONTEXT_GP_REGS+(PT_R27*8))(r31)
|
||||||
|
ld r28,(SIGCONTEXT_GP_REGS+(PT_R28*8))(r31)
|
||||||
|
ld r29,(SIGCONTEXT_GP_REGS+(PT_R29*8))(r31)
|
||||||
|
ld r30,(SIGCONTEXT_GP_REGS+(PT_R30*8))(r31)
|
||||||
|
|
||||||
|
/* Now we branch to the "Next Instruction Pointer" from the saved
|
||||||
|
context. With the powerpc64 instruction set there is no good way to
|
||||||
|
do this (from user state) without clobbering either the LR or CTR.
|
||||||
|
The makecontext and swapcontext functions depend on the callers
|
||||||
|
LR being preserved so we use the CTR. */
|
||||||
|
ld r0,(SIGCONTEXT_GP_REGS+(PT_NIP*8))(r31)
|
||||||
|
mtctr r0
|
||||||
|
ld r0,(SIGCONTEXT_GP_REGS+(PT_R0*8))(r31)
|
||||||
|
ld r31,(SIGCONTEXT_GP_REGS+(PT_R31*8))(r31)
|
||||||
|
bctr
|
||||||
|
|
||||||
|
L(error_exit):
|
||||||
|
ld r0,128+FRAME_LR_SAVE(r1)
|
||||||
|
addi r1,r1,128
|
||||||
|
mtlr r0
|
||||||
|
ld r31,-8(r1)
|
||||||
|
blr
|
||||||
|
|
||||||
|
/* At this point we assume that the ucontext was created by a
|
||||||
|
rt_signal and we should use rt_sigreturn to restore the original
|
||||||
|
state. As of the 2.4.21 kernel the ucontext is the first thing
|
||||||
|
(offset 0) in the rt_signal frame and rt_sigreturn expects the
|
||||||
|
ucontext address in R1. Normally the rt-signal trampoline handles
|
||||||
|
this by popping dummy frame before the rt_signal syscall. In our
|
||||||
|
case the stack may not be in its original (signal handler return with
|
||||||
|
R1 pointing at the dummy frame) state. We do have the ucontext
|
||||||
|
address in R3, so simply copy R3 to R1 before the syscall. */
|
||||||
|
L(do_sigret):
|
||||||
|
mr r1,r3,
|
||||||
|
li r0,SYS_ify(rt_sigreturn)
|
||||||
|
sc
|
||||||
|
/* No return. */
|
||||||
|
|
||||||
|
PSEUDO_END(__swapcontext)
|
||||||
|
|
||||||
|
weak_alias(__swapcontext, swapcontext)
|
||||||
47
sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h
Normal file
47
sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h
Normal file
@ -0,0 +1,47 @@
|
|||||||
|
/* Copyright (C) 1998, 1999, 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. */
|
||||||
|
|
||||||
|
#ifndef _SYS_UCONTEXT_H
|
||||||
|
#define _SYS_UCONTEXT_H 1
|
||||||
|
|
||||||
|
#include <features.h>
|
||||||
|
#include <signal.h>
|
||||||
|
|
||||||
|
/* We need the signal context definitions even if they are not used
|
||||||
|
included in <signal.h>. */
|
||||||
|
#include <bits/sigcontext.h>
|
||||||
|
|
||||||
|
/* A machine context is exactly a sigcontext. */
|
||||||
|
typedef struct sigcontext mcontext_t;
|
||||||
|
|
||||||
|
/* Userlevel context. */
|
||||||
|
typedef struct ucontext
|
||||||
|
{
|
||||||
|
unsigned long int uc_flags;
|
||||||
|
struct ucontext *uc_link;
|
||||||
|
stack_t uc_stack;
|
||||||
|
#if __WORDSIZE == 32
|
||||||
|
mcontext_t uc_mcontext;
|
||||||
|
__sigset_t uc_sigmask;
|
||||||
|
#else
|
||||||
|
sigset_t uc_sigmask;
|
||||||
|
mcontext_t uc_mcontext; /* last for extensibility */
|
||||||
|
#endif
|
||||||
|
} ucontext_t;
|
||||||
|
|
||||||
|
#endif /* sys/ucontext.h */
|
||||||
Reference in New Issue
Block a user