mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-22 10:50:07 +00:00
305bb37e1e
PTR_MANGLE2, PTR_DEMANGLE, PTR_DEMANGLE2): Define. * sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h (PTR_MANGLE, PTR_MANGLE2, PTR_DEMANGLE, PTR_DEMANGLE2): Define. * sysdeps/unix/sysv/linux/sparc/bits/setjmp.h [__WORDSIZE == 64] (_JMPBUF_UNWINDS): Don't demangle uc_mcontext.mc_fp. * sysdeps/sparc/sparc32/setjmp.S (__sigsetjmp): Mangle %fp, %sp and %o7. * sysdeps/sparc/sparc32/__longjmp.S (__longjmp): Demangle %fp, %sp and %o7. 2006-01-02 Jakub Jelinek <jakub@redhat.com> * sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h (PTR_MANGLE2): Define. * sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h (PTR_MANGLE2): Likewise. * sysdeps/s390/s390-32/__longjmp.c (__longjmp): Demangle also %r15. * sysdeps/s390/s390-64/__longjmp.c (__longjmp): Likewise. * sysdeps/s390/s390-32/setjmp.S (__sigsetjmp): Mangle also %r15. * sysdeps/s390/s390-32/elf/setjmp.S (__sigsetjmp): Likewise. * sysdeps/s390/s390-64/setjmp.S (__sigsetjmp): Likewise. * sysdeps/s390/s390-64/elf/setjmp.S (__sigsetjmp): Likewise. * sysdeps/s390/bits/setjmp.h (__jmp_buf): Add __s390_jmp_buf struct tag to make C++ happy. 2006-01-02 Ulrich Drepper <drepper@redhat.com> * posix/Makefile ($(objpfx)annexc.out): Move -I.. to the end of the include list.
264 lines
7.9 KiB
C
264 lines
7.9 KiB
C
/* Copyright (C) 1997, 2000, 2002, 2003, 2004 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Richard Henderson <richard@gnu.ai.mit.edu>, 1997.
|
|
|
|
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 _LINUX_SPARC64_SYSDEP_H
|
|
#define _LINUX_SPARC64_SYSDEP_H 1
|
|
|
|
#include <sysdeps/unix/sysdep.h>
|
|
|
|
#ifdef IS_IN_rtld
|
|
# include <dl-sysdep.h> /* Defines RTLD_PRIVATE_ERRNO. */
|
|
#endif
|
|
|
|
#undef SYS_ify
|
|
#define SYS_ify(syscall_name) __NR_##syscall_name
|
|
|
|
/* This is a kludge to make syscalls.list find these under the names
|
|
pread and pwrite, since some kernel headers define those names
|
|
and some define the *64 names for the same system calls. */
|
|
#if !defined __NR_pread && defined __NR_pread64
|
|
# define __NR_pread __NR_pread64
|
|
#endif
|
|
#if !defined __NR_pwrite && defined __NR_pwrite64
|
|
# define __NR_pwrite __NR_pwrite64
|
|
#endif
|
|
|
|
#ifdef __ASSEMBLER__
|
|
|
|
#define LOADSYSCALL(x) mov __NR_##x, %g1
|
|
|
|
/* Linux/SPARC uses a different trap number */
|
|
#undef PSEUDO
|
|
#undef PSEUDO_NOERRNO
|
|
#undef PSEUDO_ERRVAL
|
|
#undef ENTRY
|
|
|
|
#define ENTRY(name) \
|
|
.global C_SYMBOL_NAME(name); \
|
|
.align 2; \
|
|
C_LABEL(name); \
|
|
.type name,@function;
|
|
|
|
#ifdef LINKER_HANDLES_R_SPARC_WDISP22
|
|
/* Unfortunately, we cannot do this yet. Linker doesn't seem to
|
|
handle R_SPARC_WDISP22 against non-STB_LOCAL symbols properly . */
|
|
# define SYSCALL_ERROR_HANDLER_ENTRY(handler) \
|
|
.section .gnu.linkonce.t.handler,"ax",@progbits; \
|
|
.globl handler; \
|
|
.hidden handler; \
|
|
.type handler,@function; \
|
|
handler:
|
|
#else
|
|
# define SYSCALL_ERROR_HANDLER_ENTRY(handler) \
|
|
.subsection 3; \
|
|
handler:
|
|
#endif
|
|
|
|
#if RTLD_PRIVATE_ERRNO
|
|
# define SYSCALL_ERROR_HANDLER \
|
|
.section .gnu.linkonce.t.__sparc64.get_pic.l7,"ax",@progbits; \
|
|
.globl __sparc64.get_pic.l7; \
|
|
.hidden __sparc64.get_pic.l7; \
|
|
.type __sparc64.get_pic.l7,@function; \
|
|
__sparc64.get_pic.l7: \
|
|
retl; \
|
|
add %o7, %l7, %l7; \
|
|
.previous; \
|
|
SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler) \
|
|
save %sp, -192, %sp; \
|
|
sethi %hi(_GLOBAL_OFFSET_TABLE_-4), %l7; \
|
|
call __sparc64.get_pic.l7; \
|
|
add %l7, %lo(_GLOBAL_OFFSET_TABLE_+4), %l7; \
|
|
sethi %hi(rtld_errno), %g1; \
|
|
or %g1, %lo(rtld_errno), %g1; \
|
|
ldx [%l7 + %g1], %l0; \
|
|
st %i0, [%l0]; \
|
|
jmpl %i7+8, %g0; \
|
|
restore %g0, -1, %o0; \
|
|
.previous;
|
|
#elif USE___THREAD
|
|
# ifndef NOT_IN_libc
|
|
# define SYSCALL_ERROR_ERRNO __libc_errno
|
|
# else
|
|
# define SYSCALL_ERROR_ERRNO errno
|
|
# endif
|
|
# ifdef SHARED
|
|
# define SYSCALL_ERROR_HANDLER \
|
|
.section .gnu.linkonce.t.__sparc64.get_pic.l7,"ax",@progbits; \
|
|
.globl __sparc64.get_pic.l7; \
|
|
.hidden __sparc64.get_pic.l7; \
|
|
.type __sparc64.get_pic.l7,@function; \
|
|
__sparc64.get_pic.l7: \
|
|
retl; \
|
|
add %o7, %l7, %l7; \
|
|
.previous; \
|
|
SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler) \
|
|
save %sp,-192,%sp; \
|
|
sethi %tie_hi22(SYSCALL_ERROR_ERRNO), %l1; \
|
|
sethi %hi(_GLOBAL_OFFSET_TABLE_-4), %l7; \
|
|
call __sparc64.get_pic.l7; \
|
|
add %l7, %lo(_GLOBAL_OFFSET_TABLE_+4), %l7; \
|
|
add %l1, %tie_lo10(SYSCALL_ERROR_ERRNO), %l1; \
|
|
ldx [%l7 + %l1], %l1, %tie_ldx(SYSCALL_ERROR_ERRNO); \
|
|
st %i0, [%g7 + %l1], %tie_add(SYSCALL_ERROR_ERRNO); \
|
|
jmpl %i7+8, %g0; \
|
|
restore %g0, -1, %o0; \
|
|
.previous;
|
|
# else
|
|
# define SYSCALL_ERROR_HANDLER \
|
|
SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler) \
|
|
sethi %tie_hi22(SYSCALL_ERROR_ERRNO), %g1; \
|
|
sethi %hi(_GLOBAL_OFFSET_TABLE_), %g2; \
|
|
add %g1, %tie_lo10(SYSCALL_ERROR_ERRNO), %g1; \
|
|
add %g2, %lo(_GLOBAL_OFFSET_TABLE_), %g2; \
|
|
ldx [%g2 + %g1], %g1, %tie_ldx(SYSCALL_ERROR_ERRNO); \
|
|
st %o0, [%g7 + %g1], %tie_add(SYSCALL_ERROR_ERRNO); \
|
|
jmpl %o7+8, %g0; \
|
|
mov -1, %o0; \
|
|
.previous;
|
|
# endif
|
|
#else
|
|
# define SYSCALL_ERROR_HANDLER \
|
|
SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler) \
|
|
.global __errno_location; \
|
|
.type __errno_location,@function; \
|
|
save %sp, -192, %sp; \
|
|
call __errno_location; \
|
|
nop; \
|
|
st %i0, [%o0]; \
|
|
jmpl %i7+8, %g0; \
|
|
restore %g0, -1, %o0; \
|
|
.previous;
|
|
#endif
|
|
|
|
#define PSEUDO(name, syscall_name, args) \
|
|
.text; \
|
|
ENTRY(name); \
|
|
LOADSYSCALL(syscall_name); \
|
|
ta 0x6d; \
|
|
bcs,pn %xcc, __syscall_error_handler; \
|
|
nop; \
|
|
SYSCALL_ERROR_HANDLER
|
|
|
|
#define PSEUDO_NOERRNO(name, syscall_name, args) \
|
|
.text; \
|
|
ENTRY(name); \
|
|
LOADSYSCALL(syscall_name); \
|
|
ta 0x6d
|
|
|
|
#define PSEUDO_ERRVAL(name, syscall_name, args) \
|
|
.text; \
|
|
ENTRY(name); \
|
|
LOADSYSCALL(syscall_name); \
|
|
ta 0x6d
|
|
|
|
#undef PSEUDO_END
|
|
#define PSEUDO_END(name) \
|
|
.size name,.-name
|
|
|
|
#undef PSEUDO_END_NOERRNO
|
|
#define PSEUDO_END_NOERRNO(name) \
|
|
.size name,.-name
|
|
|
|
#undef PSEUDO_END_ERRVAL
|
|
#define PSEUDO_END_ERRVAL(name) \
|
|
.size name,.-name
|
|
|
|
#undef END
|
|
#define END(name) \
|
|
.size name,.-name
|
|
|
|
/* Careful here! This "ret" define can interfere; use jmpl if unsure. */
|
|
#define ret retl; nop
|
|
#define ret_NOERRNO retl; nop
|
|
#define ret_ERRVAL retl; nop
|
|
#define r0 %o0
|
|
#define r1 %o1
|
|
#define MOVE(x,y) mov x, y
|
|
|
|
#else /* __ASSEMBLER__ */
|
|
|
|
#define __SYSCALL_STRING \
|
|
"ta 0x6d;" \
|
|
"bcc,pt %%xcc, 1f;" \
|
|
" nop;" \
|
|
"save %%sp, -192, %%sp;" \
|
|
"call __errno_location;" \
|
|
" nop;" \
|
|
"st %%i0,[%%o0];" \
|
|
"restore %%g0, -1, %%o0;" \
|
|
"1:"
|
|
|
|
#define __CLONE_SYSCALL_STRING \
|
|
"ta 0x6d;" \
|
|
"bcc,pt %%xcc, 1f;" \
|
|
" sub %%o1, 1, %%o1;" \
|
|
"save %%sp, -192, %%sp;" \
|
|
"call __errno_location;" \
|
|
" mov -1, %%i1;" \
|
|
"st %%i0,[%%o0];" \
|
|
"restore %%g0, -1, %%o0;" \
|
|
"1:" \
|
|
"and %%o0, %%o1, %%o0"
|
|
|
|
#define __INTERNAL_SYSCALL_STRING \
|
|
"ta 0x6d;" \
|
|
"bcs,a,pt %%xcc, 1f;" \
|
|
" sub %%g0, %%o0, %%o0;" \
|
|
"1:"
|
|
|
|
#define __SYSCALL_CLOBBERS "g2", "g3", "g4", "g5", "g6", \
|
|
"f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \
|
|
"f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \
|
|
"f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", \
|
|
"f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", \
|
|
"f32", "f34", "f36", "f38", "f40", "f42", "f44", "f46", \
|
|
"f48", "f50", "f52", "f54", "f56", "f58", "f60", "f62", \
|
|
"cc", "memory"
|
|
|
|
#include <sysdeps/unix/sysv/linux/sparc/sysdep.h>
|
|
|
|
#endif /* __ASSEMBLER__ */
|
|
|
|
/* This is the offset from the %sp to the backing store above the
|
|
register windows. So if you poke stack memory directly you add this. */
|
|
#define STACK_BIAS 2047
|
|
|
|
/* Pointer mangling support. */
|
|
#if defined NOT_IN_libc && defined IS_IN_rtld
|
|
/* We cannot use the thread descriptor because in ld.so we use setjmp
|
|
earlier than the descriptor is initialized. */
|
|
#else
|
|
# ifdef __ASSEMBLER__
|
|
# define PTR_MANGLE(dreg, reg, tmpreg) \
|
|
ldx [%g7 + POINTER_GUARD], tmpreg; \
|
|
xor reg, tmpreg, dreg
|
|
# define PTR_DEMANGLE(dreg, reg, tmpreg) PTR_MANGLE (dreg, reg, tmpreg)
|
|
# define PTR_MANGLE2(dreg, reg, tmpreg) \
|
|
xor reg, tmpreg, dreg
|
|
# define PTR_DEMANGLE2(dreg, reg, tmpreg) PTR_MANGLE2 (dreg, reg, tmpreg)
|
|
# else
|
|
# define PTR_MANGLE(var) \
|
|
(var) = (__typeof (var)) ((uintptr_t) (var) ^ THREAD_GET_POINTER_GUARD ())
|
|
# define PTR_DEMANGLE(var) PTR_MANGLE (var)
|
|
# endif
|
|
#endif
|
|
|
|
#endif /* linux/sparc64/sysdep.h */
|