mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-19 03:20:05 +00:00
f1d86a931b
2000-05-05 Jes Sorensen <jes@linuxcare.com> * sysdeps/unix/sysv/linux/ia64/sysdep.h: New file. * sysdeps/unix/sysv/linux/ia64/syscall.S: New file. * sysdeps/unix/sysv/linux/ia64/bits/types.h: New file. * sysdeps/unix/sysv/linux/ia64/bits/endian.h: New file. * sysdeps/ia64/Implies: New file. * sysdeps/ia64/Versions: New file. Declare _dl_symbol_address. * sysdeps/ia64/Makefile: New file. * sysdeps/ia64/gmp-mparam.h: New file, * sysdeps/ia64/elf/start.S: New file. * sysdeps/ia64/bits/fenv.h: New file. 2000-05-05 David Mosberger-Tang <davidm@hpl.hp.com> * sysdeps/unix/sysv/linux/ia64/sysdep.S: New file. 2000-04-26 Jes Sorensen <Jes.Sorensen@cern.ch> * sysdeps/unix/sysv/linux/ia64/bits/elfclass.h: New file. The ia64 has 64 bit .hash entries just as the Alpha. 2000-04-25 Jes Sorensen <Jes.Sorensen@cern.ch> * sysdeps/ia64/memprof.h: New file. Provide GETSP() macro. 2000-04-17 Jes Sorensen <Jes.Sorensen@cern.ch> * sysdeps/ia64/fpu/fclrexcpt.c: New file. * sysdeps/ia64/fpu/fedisblxcpt.c: New file. * sysdeps/ia64/fpu/feenablxcpt.c: New file. * sysdeps/ia64/fpu/fegetenv.c: New file. * sysdeps/ia64/fpu/fegetexcept.c: New file. * sysdeps/ia64/fpu/fegetround.c: New file. * sysdeps/ia64/fpu/feholdexcpt.c: New file. * sysdeps/ia64/fpu/fesetenv.c: New file. * sysdeps/ia64/fpu/fesetround.c: New file. * sysdeps/ia64/fpu/feupdateenv.c: New file. * sysdeps/ia64/fpu/fgetexcptflg.c: New file. * sysdeps/ia64/fpu/fraiseexcpt.c: New file. * sysdeps/ia64/fpu/fsetexcptflg.c: New file. * sysdeps/ia64/fpu/ftestexcept.c: New file. * sysdeps/unix/sysv/linux/i386/dl-procinfo.h (_DL_HWCAP_COUNT): New. * sysdeps/unix/sysv/linux/sparc/sparc32/dl-procinfo.h (_DL_HWCAP_COUNT): New. * sysdeps/unix/sysv/linux/sparc/sparc64/dl-procinfo.h (_DL_HWCAP_COUNT): New.
100 lines
3.1 KiB
C
100 lines
3.1 KiB
C
/* Copyright (C) 1999, 2000 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Written by Jes Sorensen, <Jes.Sorensen@cern.ch>, April 1999.
|
|
Based on code originally written by David Mosberger-Tang
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public License as
|
|
published by the Free Software Foundation; either version 2 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
|
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include <sysdeps/unix/sysdep.h>
|
|
|
|
/* For Linux we can use the system call table in the header file
|
|
/usr/include/asm/unistd.h
|
|
of the kernel. But these symbols do not follow the SYS_* syntax
|
|
so we have to redefine the `SYS_ify' macro here. */
|
|
#undef SYS_ify
|
|
#ifdef __STDC__
|
|
# define SYS_ify(syscall_name) __NR_##syscall_name
|
|
#else
|
|
# define SYS_ify(syscall_name) __NR_/**/syscall_name
|
|
#endif
|
|
|
|
#ifdef __ASSEMBLER__
|
|
|
|
/* Linux uses a negative return value to indicate syscall errors, unlike
|
|
most Unices, which use the condition codes' carry flag.
|
|
|
|
Since version 2.1 the return value of a system call might be negative
|
|
even if the call succeeded. E.g., the `lseek' system call might return
|
|
a large offset. Therefore we must not anymore test for < 0, but test
|
|
for a real error by making sure the value in %d0 is a real error
|
|
number. Linus said he will make sure the no syscall returns a value
|
|
in -1 .. -4095 as a valid result so we can savely test with -4095. */
|
|
|
|
/* We don't want the label for the error handler to be visible in the symbol
|
|
table when we define it here. */
|
|
#define SYSCALL_ERROR_LABEL __syscall_error
|
|
|
|
#ifdef PROF
|
|
#error "define CALL_MCOUNT"
|
|
#else
|
|
#define CALL_MCOUNT
|
|
#endif
|
|
|
|
|
|
#undef PSEUDO
|
|
#define PSEUDO(name, syscall_name, args) \
|
|
ENTRY(name) \
|
|
DO_CALL (SYS_ify(syscall_name)); \
|
|
cmp.eq p6,p0=-1,r10;; \
|
|
(p6) br.cond.spnt.few __syscall_error;
|
|
|
|
#define ENTRY(name) \
|
|
.psr abi64; \
|
|
.psr lsb; \
|
|
.lsb; \
|
|
.proc C_SYMBOL_NAME(name); \
|
|
.text; \
|
|
.align 32; \
|
|
.proc C_SYMBOL_NAME(name); \
|
|
.global C_SYMBOL_NAME(name); \
|
|
C_LABEL(name) \
|
|
CALL_MCOUNT
|
|
|
|
#define DO_CALL(num) \
|
|
mov r15=num; \
|
|
break __BREAK_SYSCALL;
|
|
|
|
#undef PSEUDO_END
|
|
#define PSEUDO_END(name) .endp C_SYMBOL_NAME(name);
|
|
|
|
#undef END
|
|
#define END(name) \
|
|
.size C_SYMBOL_NAME(name), . - C_SYMBOL_NAME(name) ; \
|
|
.endp C_SYMBOL_NAME(name)
|
|
|
|
#define ret br.ret.sptk.few b0
|
|
|
|
#else /* not __ASSEMBLER__ */
|
|
|
|
/* Define a macro which expands into the inline wrapper code for a system
|
|
call. */
|
|
#if 0
|
|
#undef INLINE_SYSCALL
|
|
#define INLINE_SYSCALL(name, nr, args...) __##name (args)
|
|
#endif
|
|
|
|
#endif /* not __ASSEMBLER__ */
|