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Update. 

2003-12-02  David Mosberger  <davidm@hpl.hp.com>

	* sysdeps/ia64/elf/initfini.c: Add unwind info.

	* sysdeps/ia64/dl-machine.h (elf_machine_matches_host): Mark with
	attribute "unused".
	(elf_machine_dynamic): Mark with attributes "unused" and "const".
	(elf_machine_runtime_setup): Likewise.

	* sysdeps/generic/dl-fptr.c (make_fptr_table): Mark with
	attribute "always_inline".
	* sysdeps/ia64/dl-machine.h (__ia64_init_bootstrap_fdesc_table):
	Likewise.

	* configure.in: Check whether compiler has libunwind support.
	* config.make.in (have-cc-with-libunwind): New variable.
	* config.h.in (HAVE_CC_WITH_LIBUNWIND): New macro.
	* Makeconfig (gnulib): If have-cc-withh-libunwind is "yes", also
	mention -lunwind.

003-11-12  David Mosberger  <davidm@hpl.hp.com>

	* sysdeps/unix/sysv/linux/ia64/sysdep.h: Define DO_CALL_VIA_BREAK.
	Redefine DO_CALL to use vdso if supported, otherwise DO_CALL_VIA_BREAK.
	Likewise for DO_INLINE_SYSCALL.  Make INTERNAL_SYSCALL use
	DO_INLINE_SYSCALL.

	* sysdeps/unix/sysv/linux/ia64/vfork.S: Use DO_CALL_VIA_BREAK()
	instead of DO_CALL().

	* sysdeps/unix/sysv/linux/ia64/clone2.S: Use break directly instead
	of DO_CALL().

	* sysdeps/unix/sysv/linux/ia64/brk.S (__curbrk): Restructure it
	to take advantage of DO_CALL() macro.
	* sysdeps/unix/sysv/linux/ia64/setcontext.S: Likewise.
	* sysdeps/unix/sysv/linux/ia64/getcontext.S: Likewise.

	* elf/rtld.c (dl_main): Restrict dl_sysinfo_dso check to first
	program header.  On ia64, the check failed previously because
	there are two program headers.

	* sysdeps/generic/s_nexttowardf.c: Likewise.
	* math/bug-nexttoward.c: New file.
This commit is contained in:
Ulrich Drepper 2003-12-10 23:02:33 +00:00
parent 26b30508e0
commit c776b3d717
29 changed files with 1332 additions and 523 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
ChangeLog
View File

@ -1,3 +1,45 @@
2003-12-02 David Mosberger <davidm@hpl.hp.com>
* sysdeps/ia64/elf/initfini.c: Add unwind info.
* sysdeps/ia64/dl-machine.h (elf_machine_matches_host): Mark with
attribute "unused".
(elf_machine_dynamic): Mark with attributes "unused" and "const".
(elf_machine_runtime_setup): Likewise.
* sysdeps/generic/dl-fptr.c (make_fptr_table): Mark with
attribute "always_inline".
* sysdeps/ia64/dl-machine.h (__ia64_init_bootstrap_fdesc_table):
Likewise.
* configure.in: Check whether compiler has libunwind support.
* config.make.in (have-cc-with-libunwind): New variable.
* config.h.in (HAVE_CC_WITH_LIBUNWIND): New macro.
* Makeconfig (gnulib): If have-cc-withh-libunwind is "yes", also
mention -lunwind.
003-11-12 David Mosberger <davidm@hpl.hp.com>
* sysdeps/unix/sysv/linux/ia64/sysdep.h: Define DO_CALL_VIA_BREAK.
Redefine DO_CALL to use vdso if supported, otherwise DO_CALL_VIA_BREAK.
Likewise for DO_INLINE_SYSCALL. Make INTERNAL_SYSCALL use
DO_INLINE_SYSCALL.
* sysdeps/unix/sysv/linux/ia64/vfork.S: Use DO_CALL_VIA_BREAK()
instead of DO_CALL().
* sysdeps/unix/sysv/linux/ia64/clone2.S: Use break directly instead
of DO_CALL().
* sysdeps/unix/sysv/linux/ia64/brk.S (__curbrk): Restructure it
to take advantage of DO_CALL() macro.
* sysdeps/unix/sysv/linux/ia64/setcontext.S: Likewise.
* sysdeps/unix/sysv/linux/ia64/getcontext.S: Likewise.
* elf/rtld.c (dl_main): Restrict dl_sysinfo_dso check to first
program header. On ia64, the check failed previously because
there are two program headers.
2003-12-10 Andreas Jaeger <aj@suse.de>
Ruediger Oertel <ro@suse.de>
@ -9,8 +51,9 @@
* sysdeps/i386/fpu/s_nexttoward.c: Likewise.
* sysdeps/ieee754/ldbl-128/s_nexttoward.c: Likewise.
* sysdeps/ieee754/ldbl-96/s_nexttoward.c: Likewise.
* sysdeps/generic/s_nexttowardf.c: Likewise.
* math/Makefile (tests): Add bug-nexttoward.
* math/bug-nexttowward.c: New file.
* math/bug-nexttoward.c: New file.
* sysdeps/generic/s_nextafter.c: Make sure overflow exception is set.
* sysdeps/ieee754/flt-32/s_nextafterf.c: Likewise.

3
config.h.in
View File

@ -153,6 +153,9 @@
sections. */
#undef HAVE_INITFINI_ARRAY
/* Define if the compiler's exception support is based on libunwind. */
#undef HAVE_CC_WITH_LIBUNWIND
/* Define if the access to static and hidden variables is position independent
and does not need relocations. */
#undef PI_STATIC_AND_HIDDEN

1
config.make.in
View File

@ -55,6 +55,7 @@ have-cpp-asm-debuginfo = @libc_cv_cpp_asm_debuginfo@
enable-check-abi = @enable_check_abi@
have-forced-unwind = @libc_cv_forced_unwind@
have-fpie = @libc_cv_fpie@
have-cc-with-libunwind = @libc_cv_cc_with_libunwind@
fno-unit-at-a-time = @fno_unit_at_a_time@
static-libgcc = @libc_cv_gcc_static_libgcc@

1033
configure vendored
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File diff suppressed because it is too large Load Diff

13
configure.in
View File

@ -1219,6 +1219,19 @@ EOF
AC_DEFINE(HAVE_INITFINI_ARRAY)
fi
AC_CACHE_CHECK(for libunwind-support in compiler,
libc_cv_cc_with_libunwind, [dnl
AC_TRY_LINK([#include <libunwind.h>], [
unw_context_t uc;
unw_cursor_t c;
unw_getcontext (&uc);
unw_init_local (&c, &uc)],
libc_cv_cc_with_libunwind=yes, libc_cv_cc_with_libunwind=no)])
AC_SUBST(libc_cv_cc_with_libunwind)
if test $libc_cv_cc_with_libunwind = yes; then
AC_DEFINE(HAVE_CC_WITH_LIBUNWIND)
fi
AC_CACHE_CHECK(for -z nodelete option,
libc_cv_z_nodelete, [dnl
cat > conftest.c <<EOF

11
elf/rtld.c
View File

@ -1163,6 +1163,9 @@ of this helper program; chances are you did not intend to run this program.\n\
if (__builtin_expect (l != NULL, 1))
{
static ElfW(Dyn) dyn_temp[DL_RO_DYN_TEMP_CNT];
#ifndef NDEBUG
uint_fast16_t pt_load_num = 0;
#endif
l->l_phdr = ((const void *) GL(dl_sysinfo_dso)
+ GL(dl_sysinfo_dso)->e_phoff);
@ -1176,8 +1179,14 @@ of this helper program; chances are you did not intend to run this program.\n\
l->l_ldnum = ph->p_memsz / sizeof (ElfW(Dyn));
break;
}
#ifndef NDEBUG
if (ph->p_type == PT_LOAD)
assert ((void *) ph->p_vaddr == GL(dl_sysinfo_dso));
{
assert (pt_load_num
|| (void *) ph->p_vaddr == GL(dl_sysinfo_dso));
pt_load_num++;
}
#endif
}
elf_get_dynamic_info (l, dyn_temp);
_dl_setup_hash (l);

7
linuxthreads/ChangeLog
View File

@ -1,8 +1,11 @@
2003-11-19 David Mosberger <davidm@hpl.hp.com>
* sysdeps/unix/sysv/linux/ia64/dl-sysdep.h: New file.
2003-12-10 Andreas Jaeger <aj@suse.de>
Ruediger Oertel <ro@suse.de>
* sysdeps/alpha/elf/pt-initfini.c (__asm__): Remove extra
.prologue.
* sysdeps/alpha/elf/pt-initfini.c (__asm__): Remove extra .prologue.
2003-11-30 Andreas Jaeger <aj@suse.de>

45
linuxthreads/sysdeps/unix/sysv/linux/ia64/dl-sysdep.h Normal file
View File

@ -0,0 +1,45 @@
/* System-specific settings for dynamic linker code. IA-64 version.
Copyright (C) 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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 _DL_SYSDEP_H
#define _DL_SYSDEP_H 1
#define NEED_DL_SYSINFO 1
#undef USE_DL_SYSINFO
#if defined NEED_DL_SYSINFO && !defined __ASSEMBLER__
/* Don't declare this as a function---we want it's entry-point, not
it's function descriptor... */
extern int _dl_sysinfo_break attribute_hidden;
# define DL_SYSINFO_DEFAULT ((uintptr_t) &_dl_sysinfo_break)
# define DL_SYSINFO_IMPLEMENTATION \
asm (".text\n\t" \
".hidden _dl_sysinfo_break\n\t" \
".proc _dl_sysinfo_break\n\t" \
"_dl_sysinfo_break:\n\t" \
".prologue\n\t" \
".altrp b6\n\t" \
".body\n\t" \
"break 0x100000;\n\t" \
"br.ret.sptk.many b6;\n\t" \
".endp _dl_sysinfo_break" \
".previous");
#endif
#endif /* dl-sysdep.h */

46
nptl/ChangeLog
View File

@ -1,3 +1,49 @@
2003-12-02 David Mosberger <davidm@hpl.hp.com>
* Makefile (link-libc-static): Remove -lgcc_eh---it's already mentioned
in $(gnulib). Also, remove stale comment.
2003-11-12 David Mosberger <davidm@hpl.hp.com>
* sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h (PSEUDO): Take
advantage of new syscall stub and optimize accordingly.
* sysdeps/unix/sysv/linux/ia64/lowlevellock.h (__NR_futex): Rename
from SYS_futex, to match expectations of
sysdep.h:DO_INLINE_SYSCALL.
(lll_futex_clobbers): Remove.
(lll_futex_timed_wait): Rewrite in terms of DO_INLINE_SYSCALL.
(lll_futex_wake): Likewise.
(lll_futex_requeue): Likewise.
(__lll_mutex_trylock): Rewrite to a macro, so we can include this
file before DO_INLINE_SYSCALL is defined (proposed by Jakub
Jelinek).
(__lll_mutex_lock): Likewise.
(__lll_mutex_cond_lock): Likewise.
(__lll_mutex_timed_lock): Likewise.
(__lll_mutex_unlock): Likewise.
(__lll_mutex_unlock_force): Likewise.
* sysdeps/ia64/tls.h: Move declaration of __thread_self up so it
comes before the include of <sysdep.h>.
(THREAD_SELF_SYSINFO): New macro.
(THREAD_SYSINFO): Likewise.
(INIT_SYSINFO): New macro.
(TLS_INIT_TP): Call INIT_SYSINFO.
* sysdeps/ia64/tcb-offsets.sym: Add SYSINFO_OFFSET.
* sysdeps/pthread/createthread.c (create_thread): Use
THREAD_SELF_SYSINFO and THREAD_SYSINFO instead of open code.
* allocatestack.c (allocate_stack): Use THREAD_SYSINFO and
THREAD_SELF_SYSINFO instead of open code.
* sysdeps/i386/tls.h (THREAD_SELF_SYSINFO): New macro.
(THREAD_SYSINFO): Likewise.
* sysdeps/unix/sysv/linux/ia64/dl-sysdep.h: New file.
* sysdeps/unix/sysv/linux/ia64/pt-vfork.S: Work around gas problem.
2003-12-06 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/ia64/pt-initfini.c: Use .init_array

3
nptl/Makefile
View File

@ -319,8 +319,7 @@ CFLAGS-flockfile.c = -D_IO_MTSAFE_IO
CFLAGS-ftrylockfile.c = -D_IO_MTSAFE_IO
CFLAGS-funlockfile.c = -D_IO_MTSAFE_IO
# Ugly, ugly. We have to link with libgcc_eh but how?
link-libc-static := $(common-objpfx)libc.a $(gnulib) -lgcc_eh $(common-objpfx)libc.a
link-libc-static := $(common-objpfx)libc.a $(gnulib) $(common-objpfx)libc.a
ifeq ($(build-static),yes)
tests-static += tst-locale1 tst-locale2

4
nptl/allocatestack.c
View File

@ -352,7 +352,7 @@ allocate_stack (const struct pthread_attr *attr, struct pthread **pdp,
#ifdef NEED_DL_SYSINFO
/* Copy the sysinfo value from the parent. */
pd->header.sysinfo = THREAD_GETMEM (THREAD_SELF, header.sysinfo);
THREAD_SYSINFO(pd) = THREAD_SELF_SYSINFO;
#endif
/* The process ID is also the same as that of the caller. */
@ -488,7 +488,7 @@ allocate_stack (const struct pthread_attr *attr, struct pthread **pdp,
#ifdef NEED_DL_SYSINFO
/* Copy the sysinfo value from the parent. */
pd->header.sysinfo = THREAD_GETMEM (THREAD_SELF, header.sysinfo);
THREAD_SYSINFO(pd) = THREAD_SELF_SYSINFO;
#endif
/* The process ID is also the same as that of the caller. */

2
nptl/sysdeps/i386/tls.h
View File

@ -128,6 +128,8 @@ union user_desc_init
# define GET_DTV(descr) \
(((tcbhead_t *) (descr))->dtv)
#define THREAD_SELF_SYSINFO THREAD_GETMEM (THREAD_SELF, header.sysinfo)
#define THREAD_SYSINFO(pd) ((pd)->header.sysinfo)
/* Macros to load from and store into segment registers. */
# ifndef TLS_GET_GS

1
nptl/sysdeps/ia64/tcb-offsets.sym
View File

@ -2,3 +2,4 @@
#include <tls.h>
MULTIPLE_THREADS_OFFSET offsetof (struct pthread, header.multiple_threads) - sizeof (struct pthread)
SYSINFO_OFFSET offsetof (tcbhead_t, private)

15
nptl/sysdeps/ia64/tls.h
View File

@ -42,6 +42,8 @@ typedef struct
void *private;
} tcbhead_t;
register struct pthread *__thread_self __asm__("r13");
# define TLS_MULTIPLE_THREADS_IN_TCB 1
#else /* __ASSEMBLER__ */
@ -64,8 +66,6 @@ typedef struct
/* Get system call information. */
# include <sysdep.h>
register struct pthread *__thread_self __asm__("r13");
/* This is the size of the initial TCB. */
# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t)
@ -100,11 +100,20 @@ register struct pthread *__thread_self __asm__("r13");
# define GET_DTV(descr) \
(((tcbhead_t *) (descr))->dtv)
#define THREAD_SELF_SYSINFO (((tcbhead_t *) __thread_self)->private)
#define THREAD_SYSINFO(pd) (((tcbhead_t *) ((pd) + 1))->private)
#if defined NEED_DL_SYSINFO
# define INIT_SYSINFO THREAD_SELF_SYSINFO = (void *) GL(dl_sysinfo)
#else
# define INIT_SYSINFO NULL
#endif
/* Code to initially initialize the thread pointer. This might need
special attention since 'errno' is not yet available and if the
operation can cause a failure 'errno' must not be touched. */
# define TLS_INIT_TP(thrdescr, secondcall) \
(__thread_self = (thrdescr), NULL)
(__thread_self = (thrdescr), INIT_SYSINFO, NULL)
/* Return the address of the dtv for the current thread. */
# define THREAD_DTV() \

2
nptl/sysdeps/pthread/createthread.c
View File

@ -226,7 +226,7 @@ create_thread (struct pthread *pd, const struct pthread_attr *attr,
}
#ifdef NEED_DL_SYSINFO
assert (THREAD_GETMEM (THREAD_SELF, header.sysinfo) == pd->header.sysinfo);
assert (THREAD_SELF_SYSINFO == THREAD_SYSINFO(pd));
#endif
/* Actually create the thread. */

64
nptl/sysdeps/unix/sysv/linux/ia64/dl-sysdep.h Normal file
View File

@ -0,0 +1,64 @@
/* System-specific settings for dynamic linker code. IA-64 version.
Copyright (C) 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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 _DL_SYSDEP_H
#define _DL_SYSDEP_H 1
/* This macro must be defined to either 0 or 1.
If 1, then an errno global variable hidden in ld.so will work right with
all the errno-using libc code compiled for ld.so, and there is never a
need to share the errno location with libc. This is appropriate only if
all the libc functions that ld.so uses are called without PLT and always
get the versions linked into ld.so rather than the libc ones. */
#ifdef IS_IN_rtld
# define RTLD_PRIVATE_ERRNO 1
#else
# define RTLD_PRIVATE_ERRNO 0
#endif
/* Traditionally system calls have been made using break 0x100000. A
second method was introduced which, if possible, will use the EPC
instruction. To signal the presence and where to find the code the
kernel passes an AT_SYSINFO_EHDR pointer in the auxiliary vector to
the application. */
#define NEED_DL_SYSINFO 1
#define USE_DL_SYSINFO 1
#if defined NEED_DL_SYSINFO && !defined __ASSEMBLER__
/* Don't declare this as a function---we want it's entry-point, not
it's function descriptor... */
extern int _dl_sysinfo_break attribute_hidden;
# define DL_SYSINFO_DEFAULT ((uintptr_t) &_dl_sysinfo_break)
# define DL_SYSINFO_IMPLEMENTATION \
asm (".text\n\t" \
".hidden _dl_sysinfo_break\n\t" \
".proc _dl_sysinfo_break\n\t" \
"_dl_sysinfo_break:\n\t" \
".prologue\n\t" \
".altrp b6\n\t" \
".body\n\t" \
"break 0x100000;\n\t" \
"br.ret.sptk.many b6;\n\t" \
".endp _dl_sysinfo_break" \
".previous");
#endif
#endif /* dl-sysdep.h */

178
nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h
View File

@ -26,7 +26,7 @@
#include <ia64intrin.h>
#include <atomic.h>
#define SYS_futex 1230
#define __NR_futex 1230
#define FUTEX_WAIT 0
#define FUTEX_WAKE 1
#define FUTEX_REQUEUE 3
@ -34,112 +34,52 @@
/* Initializer for compatibility lock. */
#define LLL_MUTEX_LOCK_INITIALIZER (0)
#define lll_futex_clobbers \
"out5", "out6", "out7", \
/* Non-stacked integer registers, minus r8, r10, r15. */ \
"r2", "r3", "r9", "r11", "r12", "r13", "r14", "r16", "r17", "r18", \
"r19", "r20", "r21", "r22", "r23", "r24", "r25", "r26", "r27", \
"r28", "r29", "r30", "r31", \
/* Predicate registers. */ \
"p6", "p7", "p8", "p9", "p10", "p11", "p12", "p13", "p14", "p15", \
/* Non-rotating fp registers. */ \
"f6", "f7", "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \
/* Branch registers. */ \
"b6", "b7", \
"memory"
#define lll_futex_wait(futex, val) lll_futex_timed_wait (futex, val, 0)
#define lll_futex_timed_wait(futex, val, timespec) \
({ \
register long int __o0 asm ("out0") = (long int) (futex); \
register long int __o1 asm ("out1") = FUTEX_WAIT; \
register int __o2 asm ("out2") = (int) (val); \
register long int __o3 asm ("out3") = (long int) (timespec); \
register long int __r8 asm ("r8"); \
register long int __r10 asm ("r10"); \
register long int __r15 asm ("r15") = SYS_futex; \
\
__asm __volatile ("break %7;;" \
: "=r" (__r8), "=r" (__r10), "=r" (__r15), \
"=r" (__o0), "=r" (__o1), "=r" (__o2), "=r" (__o3) \
: "i" (0x100000), "2" (__r15), "3" (__o0), "4" (__o1), \
"5" (__o2), "6" (__o3) \
: "out4", lll_futex_clobbers); \
__r10 == -1 ? -__r8 : __r8; \
})
#define lll_futex_timed_wait(ftx, val, timespec) \
({ \
DO_INLINE_SYSCALL(futex, 4, (long) (ftx), FUTEX_WAIT, (int) (val), \
(long) (timespec)); \
_r10 == -1 ? -_retval : _retval; \
})
#define lll_futex_wake(ftx, nr) \
({ \
DO_INLINE_SYSCALL(futex, 3, (long) (ftx), FUTEX_WAKE, (int) (nr)); \
_r10 == -1 ? -_retval : _retval; \
})
#define lll_futex_requeue(ftx, nr_wake, nr_move, mutex) \
({ \
DO_INLINE_SYSCALL(futex, 5, (long) (ftx), FUTEX_REQUEUE, (int) (nr_wake), \
(int) (nr_move), (long) (mutex)); \
_r10 == -1 ? -_retval : _retval; \
})
#define lll_futex_wake(futex, nr) \
({ \
register long int __o0 asm ("out0") = (long int) (futex); \
register long int __o1 asm ("out1") = FUTEX_WAKE; \
register int __o2 asm ("out2") = (int) (nr); \
register long int __r8 asm ("r8"); \
register long int __r10 asm ("r10"); \
register long int __r15 asm ("r15") = SYS_futex; \
\
__asm __volatile ("break %6;;" \
: "=r" (__r8), "=r" (__r10), "=r" (__r15), \
"=r" (__o0), "=r" (__o1), "=r" (__o2) \
: "i" (0x100000), "2" (__r15), "3" (__o0), "4" (__o1), \
"5" (__o2) \
: "out3", "out4", lll_futex_clobbers); \
__r10 == -1 ? -__r8 : __r8; \
})
#define lll_futex_requeue(futex, nr_wake, nr_move, mutex) \
({ \
register long int __o0 asm ("out0") = (long int) (futex); \
register long int __o1 asm ("out1") = FUTEX_REQUEUE; \
register int __o2 asm ("out2") = (int) (nr_wake); \
register int __o3 asm ("out3") = (int) (nr_move); \
register long int __o4 asm ("out4") = (long int) (mutex); \
register long int __r8 asm ("r8"); \
register long int __r10 asm ("r10"); \
register long int __r15 asm ("r15") = SYS_futex; \
\
__asm __volatile ("break %8;;" \
: "=r" (__r8), "=r" (__r10), "=r" (__r15), \
"=r" (__o0), "=r" (__o1), "=r" (__o2), "=r" (__o3), \
"=r" (__o4) \
: "i" (0x100000), "2" (__r15), "3" (__o0), "4" (__o1), \
"5" (__o2), "6" (__o3), "7" (__o4) \
: lll_futex_clobbers); \
__r10 == -1 ? -__r8 : __r8; \
})
static inline int
__attribute__ ((always_inline))
__lll_mutex_trylock (int *futex)
{
return atomic_compare_and_exchange_val_acq (futex, 1, 0) != 0;
}
#define __lll_mutex_trylock(futex) \
(atomic_compare_and_exchange_val_acq (futex, 1, 0) != 0)
#define lll_mutex_trylock(futex) __lll_mutex_trylock (&(futex))
extern void __lll_lock_wait (int *futex) attribute_hidden;
static inline void
__attribute__ ((always_inline))
__lll_mutex_lock (int *futex)
{
if (atomic_compare_and_exchange_bool_acq (futex, 1, 0) != 0)
__lll_lock_wait (futex);
}
#define __lll_mutex_lock(futex) \
((void) ({ \
int *__futex = (futex); \
if (atomic_compare_and_exchange_bool_acq (__futex, 1, 0) != 0) \
__lll_lock_wait (__futex); \
}))
#define lll_mutex_lock(futex) __lll_mutex_lock (&(futex))
static inline void
__attribute__ ((always_inline))
__lll_mutex_cond_lock (int *futex)
{
if (atomic_compare_and_exchange_bool_acq (futex, 2, 0) != 0)
__lll_lock_wait (futex);
}
#define __lll_mutex_cond_lock(futex) \
((void) ({ \
int *__futex = (futex); \
if (atomic_compare_and_exchange_bool_acq (__futex, 2, 0) != 0) \
__lll_lock_wait (__futex); \
}))
#define lll_mutex_cond_lock(futex) __lll_mutex_cond_lock (&(futex))
@ -147,41 +87,37 @@ extern int __lll_timedlock_wait (int *futex, const struct timespec *)
attribute_hidden;
static inline int
__attribute__ ((always_inline))
__lll_mutex_timedlock (int *futex, const struct timespec *abstime)
{
int result = 0;
if (atomic_compare_and_exchange_bool_acq (futex, 1, 0) != 0)
result = __lll_timedlock_wait (futex, abstime);
return result;
}
#define __lll_mutex_timedlock(futex, abstime) \
({ \
int *__futex = (futex); \
int __val = 0; \
\
if (atomic_compare_and_exchange_bool_acq (__futex, 1, 0) != 0) \
__val = __lll_timedlock_wait (__futex, abstime); \
__val; \
})
#define lll_mutex_timedlock(futex, abstime) \
__lll_mutex_timedlock (&(futex), abstime)
static inline void
__attribute__ ((always_inline))
__lll_mutex_unlock (int *futex)
{
int val = atomic_exchange_rel (futex, 0);
if (__builtin_expect (val > 1, 0))
lll_futex_wake (futex, 1);
}
#define __lll_mutex_unlock(futex) \
((void) ({ \
int *__futex = (futex); \
int __val = atomic_exchange_rel (__futex, 0); \
\
if (__builtin_expect (__val > 1, 0)) \
lll_futex_wake (__futex, 1); \
}))
#define lll_mutex_unlock(futex) \
__lll_mutex_unlock(&(futex))
static inline void
__attribute__ ((always_inline))
__lll_mutex_unlock_force (int *futex)
{
(void) atomic_exchange_rel (futex, 0);
lll_futex_wake (futex, 1);
}
#define __lll_mutex_unlock_force(futex) \
((void) ({ \
int *__futex = (futex); \
(void) atomic_exchange_rel (__futex, 0); \
lll_futex_wake (__futex, 1); \
}))
#define lll_mutex_unlock_force(futex) \
__lll_mutex_unlock_force(&(futex))

2
nptl/sysdeps/unix/sysv/linux/ia64/pt-vfork.S
View File

@ -30,6 +30,8 @@
/* Implemented as __clone_syscall(CLONE_VFORK | CLONE_VM | SIGCHLD, 0) */
ENTRY(__vfork)
.prologue // work around a GAS bug which triggers if
.body // first .prologue is not at the beginning of proc.
alloc r2=ar.pfs,0,0,2,0
mov out0=CLONE_VM+CLONE_VFORK+SIGCHLD
mov out1=0 /* Standard sp value. */

80
nptl/sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h
View File

@ -26,6 +26,9 @@
#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
# undef PSEUDO
#ifndef USE_DL_SYSINFO
# define PSEUDO(name, syscall_name, args) \
.text; \
ENTRY (name) \
@ -88,6 +91,83 @@ __syscall_error_##args: \
mov r8 = -1; \
mov ar.pfs = loc0
#else /* USE_DL_SYSINFO */
# define PSEUDO(name, syscall_name, args) \
.text; \
ENTRY (name) \
.prologue; \
adds r2 = SYSINFO_OFFSET, r13; \
adds r14 = MULTIPLE_THREADS_OFFSET, r13; \
.save ar.pfs, r11; \
mov r11 = ar.pfs;; \
.body; \
ld4 r14 = [r14]; \
ld8 r2 = [r2]; \
mov r15 = SYS_ify(syscall_name);; \
cmp4.ne p6, p7 = 0, r14; \
mov b7 = r2; \
(p6) br.cond.spnt .Lpseudo_cancel; \
br.call.sptk.many b6 = b7;; \
mov ar.pfs = r11; \
cmp.eq p6,p0 = -1, r10; \
(p6) br.cond.spnt.few __syscall_error; \
ret;; \
.endp name; \
.proc __GC_##name; \
.globl __GC_##name; \
.hidden __GC_##name; \
__GC_##name: \
.Lpseudo_cancel: \
.prologue; \
.regstk args, 5, args, 0; \
.save ar.pfs, loc0; \
alloc loc0 = ar.pfs, args, 5, args, 0; \
adds loc4 = SYSINFO_OFFSET, r13; \
.save rp, loc1; \
mov loc1 = rp;; \
.body; \
ld8 loc4 = [loc4]; \
CENABLE;; \
mov loc2 = r8; \
mov b7 = loc4; \
COPY_ARGS_##args \
mov r15 = SYS_ify(syscall_name); \
br.call.sptk.many b6 = b7;; \
mov loc3 = r8; \
mov loc4 = r10; \
mov out0 = loc2; \
CDISABLE;; \
cmp.eq p6,p0=-1,loc4; \
(p6) br.cond.spnt.few __syscall_error_##args; \
mov r8 = loc3; \
mov rp = loc1; \
mov ar.pfs = loc0; \
.Lpseudo_end: \
ret; \
.endp __GC_##name; \
.section .gnu.linkonce.t.__syscall_error_##args, "ax"; \
.align 32; \
.proc __syscall_error_##args; \
.global __syscall_error_##args; \
.hidden __syscall_error_##args; \
.size __syscall_error_##args, 64; \
__syscall_error_##args: \
.prologue; \
.regstk args, 5, args, 0; \
.save ar.pfs, loc0; \
.save rp, loc1; \
.body; \
mov loc4 = r1;; \
br.call.sptk.many b0 = __errno_location;; \
st4 [r8] = loc3; \
mov r1 = loc4; \
mov rp = loc1; \
mov r8 = -1; \
mov ar.pfs = loc0
#endif /* USE_DL_SYSINFO */
#undef PSEUDO_END
#define PSEUDO_END(name) .endp

2
sysdeps/generic/dl-fptr.c
View File

@ -163,7 +163,7 @@ make_fdesc (ElfW(Addr) ip, ElfW(Addr) gp)
}
static inline ElfW(Addr) *
static inline ElfW(Addr) * __attribute__ ((always_inline))
make_fptr_table (struct link_map *map)
{
const ElfW(Sym) *symtab

9
sysdeps/generic/s_nexttowardf.c
View File

@ -22,6 +22,7 @@
#include "math.h"
#include "math_private.h"
#include <float.h>
#ifdef __STDC__
float __nexttowardf(float x, long double y)
@ -65,7 +66,13 @@
hx += 1;
}
hy = hx&0x7f800000;
if(hy>=0x7f800000) return x+x; /* overflow */
if(hy>=0x7f800000) {
x = x+x; /* overflow */
if (FLT_EVAL_METHOD != 0)
/* Force conversion to float. */
asm ("" : "=m"(x) : "m"(x));
return x;
}
if(hy<0x00800000) { /* underflow */
float x2 = x*x;
if(x2!=x) { /* raise underflow flag */

10
sysdeps/ia64/dl-machine.h
View File

@ -33,7 +33,7 @@
in l_info array. */
#define DT_IA_64(x) (DT_IA_64_##x - DT_LOPROC + DT_NUM)
static inline void
static inline void __attribute__ ((always_inline))
__ia64_init_bootstrap_fdesc_table (struct link_map *map)
{
Elf64_Addr *boot_table;
@ -49,7 +49,7 @@ __ia64_init_bootstrap_fdesc_table (struct link_map *map)
__ia64_init_bootstrap_fdesc_table (&bootstrap_map);
/* Return nonzero iff ELF header is compatible with the running host. */
static inline int
static inline int __attribute__ ((unused))
elf_machine_matches_host (const Elf64_Ehdr *ehdr)
{
return ehdr->e_machine == EM_IA_64;
@ -57,7 +57,7 @@ elf_machine_matches_host (const Elf64_Ehdr *ehdr)
/* Return the link-time address of _DYNAMIC. */
static inline Elf64_Addr
static inline Elf64_Addr __attribute__ ((unused, const))
elf_machine_dynamic (void)
{
Elf64_Addr *p;
@ -77,7 +77,7 @@ elf_machine_dynamic (void)
/* Return the run-time load address of the shared object. */
static inline Elf64_Addr
static inline Elf64_Addr __attribute__ ((unused))
elf_machine_load_address (void)
{
Elf64_Addr ip;
@ -98,7 +98,7 @@ elf_machine_load_address (void)
/* Set up the loaded object described by L so its unrelocated PLT
entries will jump to the on-demand fixup code in dl-runtime.c. */
static inline int __attribute__ ((always_inline))
static inline int __attribute__ ((unused, always_inline))
elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
{
extern void _dl_runtime_resolve (void);

28
sysdeps/ia64/elf/initfini.c
View File

@ -61,16 +61,20 @@ __asm__ (".section .init_array, \"aw\"\n"
#endif
__asm__ (".section .init\n"
" .align 16\n"
" .global _init#\n"
" .proc _init#\n"
"_init:\n"
" .prologue\n"
" .save ar.pfs, r34\n"
" alloc r34 = ar.pfs, 0, 3, 0, 0\n"
" .vframe r32\n"
" mov r32 = r12\n"
" .save rp, r33\n"
" mov r33 = b0\n"
" .body\n"
" adds r12 = -16, r12\n"
#ifdef HAVE_INITFINI_ARRAY
" ;;\n" /* see gmon_initializer() below */
" ;;\n" /* see gmon_initializer() above */
#else
" .weak __gmon_start__#\n"
" addl r14 = @ltoff(@fptr(__gmon_start__#)), gp\n"
@ -90,12 +94,17 @@ __asm__ (".section .init\n"
" ;;\n"
".L5:\n"
#endif
" .align 16\n"
" .endp _init#\n"
"\n"
"/*@_init_PROLOG_ENDS*/\n"
"\n"
"/*@_init_EPILOG_BEGINS*/\n"
" .proc _init#\n"
" .prologue\n"
" .save ar.pfs, r34\n"
" .vframe r32\n"
" .save rp, r33\n"
" .body\n"
" .section .init\n"
" .regstk 0,2,0,0\n"
" mov r12 = r32\n"
@ -107,16 +116,19 @@ __asm__ (".section .init\n"
"\n"
"/*@_fini_PROLOG_BEGINS*/\n"
" .section .fini\n"
" .align 16\n"
" .global _fini#\n"
" .proc _fini#\n"
"_fini:\n"
" .prologue\n"
" .save ar.pfs, r34\n"
" alloc r34 = ar.pfs, 0, 3, 0, 0\n"
" .vframe r32\n"
" mov r32 = r12\n"
" .save rp, r33\n"
" mov r33 = b0\n"
" .body\n"
" adds r12 = -16, r12\n"
" ;;\n"
" .align 16\n"
" .endp _fini#\n"
"\n"
"/*@_fini_PROLOG_ENDS*/\n"
@ -125,6 +137,12 @@ __asm__ (".section .init\n"
"\n"
"/*@_fini_EPILOG_BEGINS*/\n"
" .section .fini\n"
" .proc _fini#\n"
" .prologue\n"
" .save ar.pfs, r34\n"
" .vframe r32\n"
" .save rp, r33\n"
" .body\n"
" mov r12 = r32\n"
" mov ar.pfs = r34\n"
" mov b0 = r33\n"

18
sysdeps/unix/sysv/linux/ia64/brk.S
View File

@ -35,19 +35,17 @@ __curbrk:
weak_alias (__curbrk, ___brk_addr)
LEAF(__brk)
mov r15=__NR_brk
break.i __BREAK_SYSCALL
.regstk 1, 0, 0, 0
DO_CALL(__NR_brk)
cmp.ltu p6, p0 = ret0, in0
addl r9 = @ltoff(__curbrk), gp
;;
cmp.ltu p6,p0=ret0,r32 /* r32 is the input register, even though we
haven't allocated a frame */
addl r9=@ltoff(__curbrk),gp
;;
ld8 r9=[r9]
(p6) mov ret0=ENOMEM
ld8 r9 = [r9]
(p6) mov ret0 = ENOMEM
(p6) br.cond.spnt.few __syscall_error
;;
st8 [r9]=ret0
mov ret0=0
st8 [r9] = ret0
mov ret0 = 0
ret
END(__brk)

57
sysdeps/unix/sysv/linux/ia64/clone2.S
View File

@ -25,49 +25,56 @@
/* size_t child_stack_size, int flags, void *arg, */
/* pid_t *parent_tid, void *tls, pid_t *child_tid) */
#define CHILD p8
#define PARENT p9
ENTRY(__clone2)
alloc r2=ar.pfs,8,2,6,0
.prologue
alloc r2=ar.pfs,8,0,6,0
cmp.eq p6,p0=0,in0
mov r8=EINVAL
(p6) br.cond.spnt.few __syscall_error
;;
flushrs /* This is necessary, since the child */
/* will be running with the same */
/* register backing store for a few */
/* instructions. We need to ensure */
/* that it will not read or write the */
/* backing store. */
mov loc0=in0 /* save fn */
mov loc1=in4 /* save arg */
mov out0=in3 /* Flags are first syscall argument. */
mov out1=in1 /* Stack address. */
(p6) br.cond.spnt.many __syscall_error
;;
mov out2=in2 /* Stack size. */
mov out3=in5 /* Parent TID Pointer */
mov out4=in7 /* Child TID Pointer */
mov out5=in6 /* TLS pointer */
DO_CALL (SYS_ify (clone2))
/*
* clone2() is special: the child cannot execute br.ret right
* after the system call returns, because it starts out
* executing on an empty stack. Because of this, we can't use
* the new (lightweight) syscall convention here. Instead, we
* just fall back on always using "break".
*
* Furthermore, since the child starts with an empty stack, we
* need to avoid unwinding past invalid memory. To that end,
* we'll pretend now that __clone2() is the end of the
* call-chain. This is wrong for the parent, but only until
* it returns from clone2() but it's better than the
* alternative.
*/
mov r15=SYS_ify (clone2)
.save rp, r0
break __BREAK_SYSCALL
.body
cmp.eq p6,p0=-1,r10
cmp.eq CHILD,PARENT=0,r8 /* Are we the child? */
(p6) br.cond.spnt.many __syscall_error
;;
(p6) br.cond.spnt.few __syscall_error
# define CHILD p6
# define PARENT p7
cmp.eq CHILD,PARENT=0,r8 /* Are we the child? */
;;
(CHILD) ld8 out1=[loc0],8 /* Retrieve code pointer. */
(CHILD) mov out0=loc1 /* Pass proper argument to fn */
(CHILD) ld8 out1=[in0],8 /* Retrieve code pointer. */
(CHILD) mov out0=in4 /* Pass proper argument to fn */
(PARENT) ret
;;
ld8 gp=[loc0] /* Load function gp. */
ld8 gp=[in0] /* Load function gp. */
mov b6=out1
;;
br.call.dptk.few rp=b6 /* Call fn(arg) in the child */
br.call.dptk.many rp=b6 /* Call fn(arg) in the child */
;;
mov out0=r8 /* Argument to _exit */
.globl _exit
br.call.dpnt.few rp=_exit /* call _exit with result from fn. */
br.call.dpnt.many rp=_exit /* call _exit with result from fn. */
ret /* Not reached. */
PSEUDO_END(__clone2)
/* For now we leave __clone undefined. This is unlikely to be a */

19
sysdeps/unix/sysv/linux/ia64/getcontext.S
View File

@ -35,26 +35,27 @@
ENTRY(__getcontext)
.prologue
alloc r16 = ar.pfs, 1, 0, 4, 0
.body
alloc r11 = ar.pfs, 1, 0, 4, 0
// sigprocmask (SIG_BLOCK, NULL, &sc->sc_mask):
mov r2 = SC_MASK
mov r15 = __NR_rt_sigprocmask
;;
mov r3 = SC_MASK
mov out0 = SIG_BLOCK
mov out1 = 0
add out2 = r2, in0
mov out3 = 8 // sizeof kernel sigset_t
break __BREAK_SYSCALL
flushrs // save dirty partition on rbs
mov out1 = 0
add out2 = r3, in0
mov out3 = 8 // sizeof kernel sigset_t
DO_CALL(__NR_rt_sigprocmask)
mov.m rFPSR = ar.fpsr
mov.m rRSC = ar.rsc
add r2 = SC_GR+1*8, r32
;;
mov.m rBSP = ar.bsp
.prologue
.save ar.unat, rUNAT
mov.m rUNAT = ar.unat
.body
@ -63,7 +64,7 @@ ENTRY(__getcontext)
.mem.offset 0,0; st8.spill [r2] = r1, (5*8 - 1*8)
.mem.offset 8,0; st8.spill [r3] = r4, 16
mov.i rPFS = ar.pfs
mov rPFS = r11
;;
.mem.offset 0,0; st8.spill [r2] = r5, 16
.mem.offset 8,0; st8.spill [r3] = r6, 48

13
sysdeps/unix/sysv/linux/ia64/setcontext.S
View File

@ -32,20 +32,21 @@
other than the PRESERVED state. */
ENTRY(__setcontext)
alloc r16 = ar.pfs, 1, 0, 4, 0
.prologue
.body
alloc r11 = ar.pfs, 1, 0, 4, 0
// sigprocmask (SIG_SETMASK, &sc->sc_mask, NULL):
mov r2 = SC_MASK
mov r15 = __NR_rt_sigprocmask
;;
mov r3 = SC_MASK
mov out0 = SIG_SETMASK
add out1 = r2, in0
;;
add out1 = r3, in0
mov out2 = 0
mov out3 = 8 // sizeof kernel sigset_t
invala
break __BREAK_SYSCALL
DO_CALL(__NR_rt_sigprocmask)
add r2 = SC_NAT, r32
add r3 = SC_RNAT, r32 // r3 <- &sc_ar_rnat

141
sysdeps/unix/sysv/linux/ia64/sysdep.h
View File

@ -23,6 +23,8 @@
#include <sysdeps/unix/sysdep.h>
#include <sysdeps/ia64/sysdep.h>
#include <dl-sysdep.h>
#include <tls.h>
/* As of GAS v2.4.90.0.7, including a ".align" directive inside a
function will cause bad unwind info to be emitted (GAS doesn't know
@ -58,6 +60,14 @@
# define __NR_semtimedop 1247
#endif
#if defined USE_DL_SYSINFO \
&& (!defined NOT_IN_libc \
|| defined IS_IN_libpthread || defined IS_IN_librt)
# define IA64_USE_NEW_STUB
#else
# undef IA64_USE_NEW_STUB
#endif
#ifdef __ASSEMBLER__
#undef CALL_MCOUNT
@ -102,9 +112,45 @@
cmp.eq p6,p0=-1,r10; \
(p6) br.cond.spnt.few __syscall_error;
#define DO_CALL(num) \
#define DO_CALL_VIA_BREAK(num) \
mov r15=num; \
break __BREAK_SYSCALL;
break __BREAK_SYSCALL
#ifdef IA64_USE_NEW_STUB
# ifdef SHARED
# define DO_CALL(num) \
.prologue; \
adds r2 = SYSINFO_OFFSET, r13;; \
ld8 r2 = [r2]; \
.save ar.pfs, r11; \
mov r11 = ar.pfs;; \
.body; \
mov r15 = num; \
mov b7 = r2; \
br.call.sptk.many b6 = b7;; \
.restore sp; \
mov ar.pfs = r11; \
.prologue; \
.body
# else /* !SHARED */
# define DO_CALL(num) \
.prologue; \
mov r15 = num; \
movl r2 = _dl_sysinfo;; \
ld8 r2 = [r2]; \
.save ar.pfs, r11; \
mov r11 = ar.pfs;; \
.body; \
mov b7 = r2; \
br.call.sptk.many b6 = b7;; \
.restore sp; \
mov ar.pfs = r11; \
.prologue; \
.body
# endif
#else
# define DO_CALL(num) DO_CALL_VIA_BREAK(num)
#endif
#undef PSEUDO_END
#define PSEUDO_END(name) .endp C_SYMBOL_NAME(name);
@ -150,45 +196,64 @@
from a syscall. r10 is set to -1 on error, whilst r8 contains the
(non-negative) errno on error or the return value on success.
*/
#undef INLINE_SYSCALL
#define INLINE_SYSCALL(name, nr, args...) \
({ \
#ifdef IA64_USE_NEW_STUB
#define DO_INLINE_SYSCALL(name, nr, args...) \
register long _r8 __asm ("r8"); \
register long _r10 __asm ("r10"); \
register long _r15 __asm ("r15") = __NR_##name; \
register void *_b7 __asm ("b7") = ((tcbhead_t *) __thread_self)->private; \
long _retval; \
LOAD_ARGS_##nr (args); \
/* \
* Don't specify any unwind info here. We mark ar.pfs as \
* clobbered. This will force the compiler to save ar.pfs \
* somewhere and emit appropriate unwind info for that save. \
*/ \
__asm __volatile ("br.call.sptk.many b6=%0;;\n" \
: "=b"(_b7), "=r" (_r8), "=r" (_r10), "=r" (_r15) \
ASM_OUTARGS_##nr \
: "0" (_b7), "3" (_r15) ASM_ARGS_##nr \
: "memory", "ar.pfs" ASM_CLOBBERS_##nr); \
_retval = _r8;
#else /* !IA64_USE_NEW_STUB */
#define DO_INLINE_SYSCALL(name, nr, args...) \
register long _r8 asm ("r8"); \
register long _r10 asm ("r10"); \
register long _r15 asm ("r15") = __NR_##name; \
long _retval; \
LOAD_ARGS_##nr (args); \
__asm __volatile (BREAK_INSN (__BREAK_SYSCALL) \
: "=r" (_r8), "=r" (_r10), "=r" (_r15) \
: "=r" (_r8), "=r" (_r10), "=r" (_r15) \
ASM_OUTARGS_##nr \
: "2" (_r15) ASM_ARGS_##nr \
: "memory" ASM_CLOBBERS_##nr); \
_retval = _r8; \
if (_r10 == -1) \
{ \
__set_errno (_retval); \
_retval = -1; \
} \
: "2" (_r15) ASM_ARGS_##nr \
: "memory" ASM_CLOBBERS_##nr); \
_retval = _r8;
#endif /* !IA64_USE_NEW_STUB */
#undef INLINE_SYSCALL
#define INLINE_SYSCALL(name, nr, args...) \
({ \
DO_INLINE_SYSCALL(name, nr, args) \
if (_r10 == -1) \
{ \
__set_errno (_retval); \
_retval = -1; \
} \
_retval; })
#undef INTERNAL_SYSCALL_DECL
#define INTERNAL_SYSCALL_DECL(err) long int err
#undef INTERNAL_SYSCALL
#define INTERNAL_SYSCALL(name, err, nr, args...) \
({ \
register long _r8 asm ("r8"); \
register long _r10 asm ("r10"); \
register long _r15 asm ("r15") = __NR_##name; \
long _retval; \
LOAD_ARGS_##nr (args); \
__asm __volatile (BREAK_INSN (__BREAK_SYSCALL) \
: "=r" (_r8), "=r" (_r10), "=r" (_r15) \
ASM_OUTARGS_##nr \
: "2" (_r15) ASM_ARGS_##nr \
: "memory" ASM_CLOBBERS_##nr); \
_retval = _r8; \
err = _r10; \
#define INTERNAL_SYSCALL(name, err, nr, args...) \
({ \
DO_INLINE_SYSCALL(name, nr, args) \
err = _r10; \
_retval; })
#undef INTERNAL_SYSCALL_ERROR_P
@ -225,6 +290,15 @@
#define ASM_OUTARGS_5 ASM_OUTARGS_4, "=r" (_out4)
#define ASM_OUTARGS_6 ASM_OUTARGS_5, "=r" (_out5)
#ifdef IA64_USE_NEW_STUB
#define ASM_ARGS_0
#define ASM_ARGS_1 ASM_ARGS_0, "4" (_out0)
#define ASM_ARGS_2 ASM_ARGS_1, "5" (_out1)
#define ASM_ARGS_3 ASM_ARGS_2, "6" (_out2)
#define ASM_ARGS_4 ASM_ARGS_3, "7" (_out3)
#define ASM_ARGS_5 ASM_ARGS_4, "8" (_out4)
#define ASM_ARGS_6 ASM_ARGS_5, "9" (_out5)
#else
#define ASM_ARGS_0
#define ASM_ARGS_1 ASM_ARGS_0, "3" (_out0)
#define ASM_ARGS_2 ASM_ARGS_1, "4" (_out1)
@ -232,6 +306,7 @@
#define ASM_ARGS_4 ASM_ARGS_3, "6" (_out3)
#define ASM_ARGS_5 ASM_ARGS_4, "7" (_out4)
#define ASM_ARGS_6 ASM_ARGS_5, "8" (_out5)
#endif
#define ASM_CLOBBERS_0 ASM_CLOBBERS_1, "out0"
#define ASM_CLOBBERS_1 ASM_CLOBBERS_2, "out1"
@ -239,7 +314,7 @@
#define ASM_CLOBBERS_3 ASM_CLOBBERS_4, "out3"
#define ASM_CLOBBERS_4 ASM_CLOBBERS_5, "out4"
#define ASM_CLOBBERS_5 ASM_CLOBBERS_6, "out5"
#define ASM_CLOBBERS_6 , "out6", "out7", \
#define ASM_CLOBBERS_6_COMMON , "out6", "out7", \
/* Non-stacked integer registers, minus r8, r10, r15. */ \
"r2", "r3", "r9", "r11", "r12", "r13", "r14", "r16", "r17", "r18", \
"r19", "r20", "r21", "r22", "r23", "r24", "r25", "r26", "r27", \
@ -249,7 +324,13 @@
/* Non-rotating fp registers. */ \
"f6", "f7", "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \
/* Branch registers. */ \
"b6", "b7"
"b6"
#ifdef IA64_USE_NEW_STUB
# define ASM_CLOBBERS_6 ASM_CLOBBERS_6_COMMON
#else
# define ASM_CLOBBERS_6 ASM_CLOBBERS_6_COMMON , "b7"
#endif
#endif /* not __ASSEMBLER__ */

3
sysdeps/unix/sysv/linux/ia64/vfork.S
View File

@ -34,9 +34,8 @@ ENTRY(__vfork)
mov out0=CLONE_VM+CLONE_VFORK+SIGCHLD
mov out1=0 /* Standard sp value. */
;;
DO_CALL (SYS_ify (clone))
DO_CALL_VIA_BREAK (SYS_ify (clone))
cmp.eq p6,p0=-1,r10
;;
(p6) br.cond.spnt.few __syscall_error
ret
PSEUDO_END(__vfork)