mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-22 19:00:07 +00:00
9eb88290df
2003-03-23 Ulrich Drepper <drepper@redhat.com> * sysdeps/unix/make-syscalls.sh: Recognize 'E' in first position of the parameter description to denote no error checking. Generate appropriate pseudo asm code. * sysdeps/unix/syscalls.list: Mark getgid, getpid, getuid with 'E'. * sysdeps/unix/sysv/linux/syscalls.list: Mark getegid, geteuid, getpgrp, and getppid with 'E'. * sysdeps/powerpc/powerpc32/sysdep.h: Define PSEUDO_NOERRNO, PSEUDO_END_NOERRNO, and ret_NOERRNO. * sysdeps/powerpc/powerpc64/sysdep.h: Likewise. * sysdeps/unix/sysdep.h: Likewise. * sysdeps/unix/alpha/sysdep.h: Likewise. * sysdeps/unix/sparc/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/arm/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/cris/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/hppa/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/i386/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/ia64/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/m68k/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/sh/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.
153 lines
4.2 KiB
C
153 lines
4.2 KiB
C
/* Copyright (C) 1997, 2002, 2003 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Miguel de Icaza <miguel@gnu.ai.mit.edu>, January 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_SPARC32_SYSDEP_H
|
|
#define _LINUX_SPARC32_SYSDEP_H 1
|
|
|
|
#include <sysdeps/unix/sparc/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
|
|
|
|
#ifdef __ASSEMBLER__
|
|
|
|
#define LOADSYSCALL(x) mov __NR_##x, %g1
|
|
|
|
/* Linux/SPARC uses a different trap number */
|
|
#undef PSEUDO
|
|
#undef PSEUDO_NOERRNO
|
|
#undef ENTRY
|
|
#undef END
|
|
#undef LOC
|
|
|
|
#define ENTRY(name) \
|
|
.global C_SYMBOL_NAME(name); \
|
|
.align 4;\
|
|
C_LABEL(name);\
|
|
.type name,@function;
|
|
|
|
#define END(name) \
|
|
.size name, . - name
|
|
|
|
#define LOC(name) .L##name
|
|
|
|
#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.__sparc.get_pic.l7,"ax",@progbits; \
|
|
.globl __sparc.get_pic.l7; \
|
|
.hidden __sparc.get_pic.l7; \
|
|
.type __sparc.get_pic.l7,@function; \
|
|
__sparc.get_pic.l7: \
|
|
retl; \
|
|
add %o7, %l7, %l7; \
|
|
.previous; \
|
|
SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler) \
|
|
save %sp,-96,%sp; \
|
|
sethi %hi(_GLOBAL_OFFSET_TABLE_-4), %l7; \
|
|
call __sparc.get_pic.l7; \
|
|
add %l7, %lo(_GLOBAL_OFFSET_TABLE_+4), %l7; \
|
|
ld [%l7 + errno], %l0; \
|
|
st %i0, [%l0]; \
|
|
jmpl %i7+8, %g0; \
|
|
restore %g0, -1, %o0; \
|
|
.previous;
|
|
#else
|
|
# define SYSCALL_ERROR_HANDLER \
|
|
SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler) \
|
|
.global __errno_location; \
|
|
.type __errno_location,@function; \
|
|
save %sp, -96, %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 0x10; \
|
|
bcs __syscall_error_handler; \
|
|
nop; \
|
|
SYSCALL_ERROR_HANDLER
|
|
|
|
#define PSEUDO_NOERRNO(name, syscall_name, args) \
|
|
.text; \
|
|
ENTRY(name); \
|
|
LOADSYSCALL(syscall_name); \
|
|
ta 0x10
|
|
|
|
#else /* __ASSEMBLER__ */
|
|
|
|
#define __SYSCALL_STRING \
|
|
"ta 0x10;" \
|
|
"bcs 2f;" \
|
|
" nop;" \
|
|
"1:" \
|
|
".subsection 2;" \
|
|
"2:" \
|
|
"save %%sp, -192, %%sp;" \
|
|
"call __errno_location;" \
|
|
" nop;" \
|
|
"st %%i0,[%%o0];" \
|
|
"ba 1b;" \
|
|
" restore %%g0, -1, %%o0;" \
|
|
".previous;"
|
|
|
|
#define __INTERNAL_SYSCALL_STRING \
|
|
"ta 0x10;" \
|
|
"bcs,a 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", \
|
|
"cc", "memory"
|
|
|
|
#include <sysdeps/unix/sysv/linux/sparc/sysdep.h>
|
|
|
|
#endif /* __ASSEMBLER__ */
|
|
|
|
#endif /* linux/sparc/sysdep.h */
|