From f1d86a931b2c51a24540e7ea3cda60dc154e064a Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Fri, 5 May 2000 16:49:44 +0000 Subject: Update. 2000-05-05 Jes Sorensen * 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 * sysdeps/unix/sysv/linux/ia64/sysdep.S: New file. 2000-04-26 Jes Sorensen * 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 * sysdeps/ia64/memprof.h: New file. Provide GETSP() macro. 2000-04-17 Jes Sorensen * 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. --- sysdeps/unix/sysv/linux/ia64/sysdep.h | 99 +++++++++++++++++++++++++++++++++++ 1 file changed, 99 insertions(+) create mode 100644 sysdeps/unix/sysv/linux/ia64/sysdep.h (limited to 'sysdeps/unix/sysv/linux/ia64/sysdep.h') diff --git a/sysdeps/unix/sysv/linux/ia64/sysdep.h b/sysdeps/unix/sysv/linux/ia64/sysdep.h new file mode 100644 index 0000000000..6901d5e38e --- /dev/null +++ b/sysdeps/unix/sysv/linux/ia64/sysdep.h @@ -0,0 +1,99 @@ +/* Copyright (C) 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Written by Jes Sorensen, , 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 + +/* 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__ */ -- cgit 1.4.1