2002-09-21 01:46:03 +02:00
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/* Assembly macros for 32-bit PowerPC.
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2004-12-22 21:10:10 +01:00
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Copyright (C) 1999, 2001, 2002, 2003 Free Software Foundation, Inc.
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2002-09-21 01:46:03 +02:00
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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2004-12-22 21:10:10 +01:00
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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2002-09-21 01:46:03 +02:00
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#include <sysdeps/powerpc/sysdep.h>
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2004-05-26 06:47:00 +02:00
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#ifdef __ASSEMBLER__
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2002-09-21 01:46:03 +02:00
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#ifdef __ELF__
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/* If compiled for profiling, call `_mcount' at the start of each
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function. */
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#ifdef PROF
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/* The mcount code relies on a the return address being on the stack
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to locate our caller and so it can restore it; so store one just
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for its benefit. */
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2005-06-18 01:11:35 +02:00
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# define CALL_MCOUNT \
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2004-12-22 21:10:10 +01:00
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mflr r0; \
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stw r0,4(r1); \
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bl JUMPTARGET(_mcount);
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2002-09-21 01:46:03 +02:00
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#else /* PROF */
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2003-02-20 21:30:02 +01:00
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# define CALL_MCOUNT /* Do nothing. */
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2002-09-21 01:46:03 +02:00
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#endif /* PROF */
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#define ENTRY(name) \
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ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \
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ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \
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.align ALIGNARG(2); \
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C_LABEL(name) \
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CALL_MCOUNT
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#define EALIGN_W_0 /* No words to insert. */
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#define EALIGN_W_1 nop
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#define EALIGN_W_2 nop;nop
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#define EALIGN_W_3 nop;nop;nop
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#define EALIGN_W_4 EALIGN_W_3;nop
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#define EALIGN_W_5 EALIGN_W_4;nop
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#define EALIGN_W_6 EALIGN_W_5;nop
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#define EALIGN_W_7 EALIGN_W_6;nop
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/* EALIGN is like ENTRY, but does alignment to 'words'*4 bytes
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past a 2^align boundary. */
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#ifdef PROF
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2003-02-20 21:30:02 +01:00
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# define EALIGN(name, alignt, words) \
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2002-09-21 01:46:03 +02:00
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ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \
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ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \
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.align ALIGNARG(2); \
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C_LABEL(name) \
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CALL_MCOUNT \
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b 0f; \
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.align ALIGNARG(alignt); \
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EALIGN_W_##words; \
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0:
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#else /* PROF */
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2003-02-20 21:30:02 +01:00
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# define EALIGN(name, alignt, words) \
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2002-09-21 01:46:03 +02:00
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ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \
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ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \
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.align ALIGNARG(alignt); \
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EALIGN_W_##words; \
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2004-12-22 21:10:10 +01:00
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C_LABEL(name)
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2002-09-21 01:46:03 +02:00
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#endif
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#undef END
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#define END(name) \
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ASM_SIZE_DIRECTIVE(name)
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#define DO_CALL(syscall) \
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li 0,syscall; \
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sc
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2003-01-09 21:30:21 +01:00
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#undef JUMPTARGET
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2002-09-21 01:46:03 +02:00
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#ifdef PIC
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2003-02-20 21:30:02 +01:00
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# define JUMPTARGET(name) name##@plt
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2002-09-21 01:46:03 +02:00
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#else
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2003-02-20 21:30:02 +01:00
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# define JUMPTARGET(name) name
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#endif
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#if defined SHARED && defined DO_VERSIONING && defined PIC \
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&& !defined HAVE_BROKEN_ALIAS_ATTRIBUTE && !defined NO_HIDDEN
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# undef HIDDEN_JUMPTARGET
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# define HIDDEN_JUMPTARGET(name) __GI_##name##@local
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2002-09-21 01:46:03 +02:00
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#endif
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#define PSEUDO(name, syscall_name, args) \
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.section ".text"; \
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ENTRY (name) \
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DO_CALL (SYS_ify (syscall_name));
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#define PSEUDO_RET \
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2003-01-07 01:42:43 +01:00
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bnslr+; \
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2005-05-21 21:29:13 +02:00
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b __syscall_error@local
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2002-09-21 01:46:03 +02:00
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#define ret PSEUDO_RET
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#undef PSEUDO_END
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#define PSEUDO_END(name) \
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END (name)
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2003-03-23 20:44:31 +01:00
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#define PSEUDO_NOERRNO(name, syscall_name, args) \
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.section ".text"; \
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ENTRY (name) \
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DO_CALL (SYS_ify (syscall_name));
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#define PSEUDO_RET_NOERRNO \
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blr
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#define ret_NOERRNO PSEUDO_RET_NOERRNO
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#undef PSEUDO_END_NOERRNO
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#define PSEUDO_END_NOERRNO(name) \
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END (name)
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Update.
2003-08-16 Jakub Jelinek <jakub@redhat.com>
* sysdeps/powerpc/powerpc32/sysdep.h (PSEUDO_ERRVAL,
PSEUDO_RET_ERRVAL, ret_ERRVAL, PSEUDO_END_ERRVAL): Define.
* sysdeps/powerpc/powerpc64/sysdep.h (PSEUDO_ERRVAL,
PSEUDO_RET_ERRVAL, ret_ERRVAL, PSEUDO_END_ERRVAL): Define.
* sysdeps/unix/alpha/sysdep.h (PSEUDO_ERRVAL,
ret_ERRVAL, PSEUDO_END_ERRVAL): Define.
* sysdeps/unix/mips/sysdep.h (PSEUDO_ERRVAL,
ret_ERRVAL, PSEUDO_END_ERRVAL): Define.
* sysdeps/unix/sparc/sysdep.h (PSEUDO_ERRVAL,
ret_ERRVAL): Define.
* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h (PSEUDO_ERRVAL,
PSEUDO_END_ERRVAL, ret_ERRVAL): Define.
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h (PSEUDO_ERRVAL,
PSEUDO_END_ERRVAL, ret_ERRVAL): Define.
* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h (PSEUDO_ERRVAL):
Define.
* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h (PSEUDO_ERRVAL,
PSEUDO_END_ERRVAL, ret_ERRVAL): Define.
* sysdeps/unix/sysdep.h (PSEUDO_END_ERRVAL): Define.
* sysdeps/unix/sysv/linux/syscalls.list (posix_fadvise64,
posix_fadvise64_64): Remove.
* sysdeps/unix/sysv/linux/alpha/syscalls.list (posix_fadvise64): Add
V flag.
* sysdeps/unix/sysv/linux/ia64/syscalls.list (posix_fadvise64):
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/syscalls.list
(posix_fadvise64): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list
(posix_fadvise64): Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list
(posix_fadvise64): Likewise.
* sysdeps/unix/sysv/linux/x86_64/syscalls.list (posix_fadvise64):
Likewise.
* sysdeps/unix/sysv/linux/i386/posix_fadvise64_64.S: Moved to...
* sysdeps/unix/sysv/linux/i386/posix_fadvise64.S: ...here.
(__posix_fadvise64_l64): Fix a typo in fadvise64 syscall invocation.
(__posix_fadvise64_l32): New function.
* sysdeps/unix/sysv/linux/i386/Makefile: Revert last change.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/Versions (libc): Export
posix_fadvise64@@GLIBC_2.3.3.
* sysdeps/unix/sysv/linux/s390/s390-32/Versions (libc): Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/Versions (libc): Likewise.
* sysdeps/unix/sysv/linux/posix_fadvise.c (posix_fadvise): Return
error value.
* sysdeps/unix/sysv/linux/posix_fadvise64.c: New file.
* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h
(SYSCALL_ERROR_HANDLER): Use TLS errno/__libc_errno if USE___THREAD.
2003-08-15 Jakub Jelinek <jakub@redhat.com>
* sysdeps/sparc/sparc32/dl-machine.h (WEAKADDR): Remove.
(elf_machine_matches_host): Remove weak extern stuff.
Use GL(dl_hwcap) unconditionally and GL(dl_hwcap_mask) if SHARED.
(elf_machine_runtime_setup, sparc_fixup_plt): Remove weak extern
stuff. Use GL(dl_hwcap) unconditionally.
2003-08-17 02:37:19 +02:00
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#define PSEUDO_ERRVAL(name, syscall_name, args) \
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.section ".text"; \
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ENTRY (name) \
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DO_CALL (SYS_ify (syscall_name));
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#define PSEUDO_RET_ERRVAL \
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blr
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#define ret_ERRVAL PSEUDO_RET_ERRVAL
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#undef PSEUDO_END_ERRVAL
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#define PSEUDO_END_ERRVAL(name) \
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END (name)
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2002-09-21 01:46:03 +02:00
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/* Local labels stripped out by the linker. */
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#undef L
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#define L(x) .L##x
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/* Label in text section. */
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#define C_TEXT(name) name
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#endif /* __ELF__ */
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#endif /* __ASSEMBLER__ */
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