+2012-04-21 Joseph Myers <joseph@codesourcery.com>
+
+ [BZ #13556]
+ * sysdeps/unix/sysv/linux/arm/socket.S: Remove.
+ * sysdeps/unix/sysv/linux/arm/syscalls.list (syscall): Remove.
+ (oldgetrlimit): Likewise.
+ (oldsetrlimit): Likewise.
+ (syscall): Likewise.
+ (msgget): Add syscall from eabi/syscalls.list.
+ (msgrcv): Likewise.
+ (msgsnd): Likewise.
+ (shmat): Likewise.
+ (shmdt): Likewise.
+ (shmget): Likewise.
+ (semop): Likewise.
+ (semtimedop): Likewise.
+ (semget): Likewise.
+ (accept): Likewise.
+ (bind): Likewise.
+ (connect): Likewise.
+ (getpeername): Likewise.
+ (getsockname): Likewise.
+ (getsockopt): Likewise.
+ (listen): Likewise.
+ (recv): Likewise.
+ (recvfrom): Likewise.
+ (recvmsg): Likewise.
+ (send): Likewise.
+ (sendmsg): Likewise.
+ (sendto): Likewise.
+ (setsockopt): Likewise.
+ (shutdown): Likewise.
+ (socket): Likewise.
+ (socketpair): Likewise.
+ * sysdeps/unix/sysv/linux/arm/eabi/syscalls.list: Remove.
+ * sysdeps/unix/sysv/linux/arm/Makefile [subdir = csu]
+ (CFLAGS-libc-start.c): Add setting from eabi/Makefile.
+ [subdir = rt] (librt-sysdep_routines): Likewise.
+ [subdir = rt] (librt-shared-only-routines): Likewise.
+ [subdir = nptl] (libpthread-sysdep_routines): Likewise.
+ [subdir = nptl] (libpthread-shared-only-routines): Likewise.
+ [subdir = resolv] (libanl-sysdep_routines): Likewise.
+ [subdir = resolv] (libanl-shared-only-routines): Likewise.
+ [subdir = csu] (sysdep_routines): Likewise.
+ [subdir = nscd] (nscd-modules): Likewise.
+ [subdir = nss] (libnss_db-sysdep_routines): Likewise.
+ [subdir = nss] (libnss_db-shared-only-routines): Likewise.
+ [subdir = posix] (LDFLAGS-tst-rfc3484): Likewise.
+ [subdir = posix] (LDFLAGS-tst-rfc3484-2): Likewise.
+ [subdir = posix] (LDFLAGS-tst-rfc3484-3): Likewise.
+ * sysdeps/unix/sysv/linux/arm/eabi/Makefile: Remove.
+ * sysdeps/unix/sysv/linux/arm/sysdep.h (__NR_SYSCALL_BASE): Add
+ test from eabi/sysdep.h.
+ (__NR_stime): Add #undef from eabi/sysdep.h.
+ (__NR_alarm): Likewise.
+ (DO_CALL): Use definition from eabi/sysdep.h.
+ (DOARGS_0): Likewise.
+ (DOARGS_1): Likewise.
+ (DOARGS_2): Likewise.
+ (DOARGS_3): Likewise.
+ (DOARGS_4): Likewise.
+ (DOARGS_5): Likewise.
+ (DOARGS_6): Likewise.
+ (DOARGS_7): Likewise.
+ (UNDOARGS_0): Likewise.
+ (UNDOARGS_1): Likewise.
+ (UNDOARGS_2): Likewise.
+ (UNDOARGS_3): Likewise.
+ (UNDOARGS_4): Likewise.
+ (UNDOARGS_5): Likewise.
+ (UNDOARGS_6): Likewise.
+ (UNDOARGS_7): Likewise.
+ (INTERNAL_SYSCALL_RAW): Likewise.
+ [__thumb__] (LOAD_ARGS_7): Do not define.
+ [__thumb__] (ASM_ARGS_7): Likewise.
+ (INTERNAL_SYSCALL_NCS): Use definition from eabi/sysdep.h.
+ (INTERNAL_SYSCALL_NCS_0): Remove.
+ (INTERNAL_SYSCALL_NCS_1): Likewise.
+ (INTERNAL_SYSCALL_NCS_2): Likewise.
+ (INTERNAL_SYSCALL_NCS_3): Likewise.
+ (INTERNAL_SYSCALL_NCS_4): Likewise.
+ (INTERNAL_SYSCALL_NCS_5): Likewise.
+ * sysdeps/unix/sysv/linux/arm/eabi/sysdep.h: Remove.
+ * sysdeps/unix/sysv/linux/arm/eabi/____longjmp_chk.S: Move to ...
+ * sysdeps/unix/sysv/linux/arm/____longjmp_chk.S: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/configure.in: Move to ...
+ * sysdeps/unix/sysv/linux/arm/configure.in: ... here. Update
+ comment.
+ * sysdeps/unix/sysv/linux/arm/eabi/configure: Move to ...
+ * sysdeps/unix/sysv/linux/arm/configure: ... here. Regenerate.
+ * sysdeps/unix/sysv/linux/arm/eabi/ftruncate64.c: Move to ...
+ * sysdeps/unix/sysv/linux/arm/ftruncate64.c: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/getcontext.S: Move to ...
+ * sysdeps/unix/sysv/linux/arm/getcontext.S: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/internal_accept4.S: Move to ...
+ * sysdeps/unix/sysv/linux/arm/internal_accept4.S: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/internal_recvmmsg.S: Move to ...
+ * sysdeps/unix/sysv/linux/arm/internal_recvmmsg.S: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/internal_sendmmsg.S: Move to ...
+ * sysdeps/unix/sysv/linux/arm/internal_sendmmsg.S: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/libc-do-syscall.S: Move to ...
+ * sysdeps/unix/sysv/linux/arm/libc-do-syscall.S: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/makecontext.c: Move to ...
+ * sysdeps/unix/sysv/linux/arm/makecontext.c: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/mmap64.S: Move to ...
+ * sysdeps/unix/sysv/linux/arm/mmap64.S: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/msgctl.c: Move to ...
+ * sysdeps/unix/sysv/linux/arm/msgctl.c: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/oldgetrlimit.c: Move to ...
+ * sysdeps/unix/sysv/linux/arm/oldgetrlimit.c: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/oldsetrlimit.c: Move to ...
+ * sysdeps/unix/sysv/linux/arm/oldsetrlimit.c: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/pread.c: Move to ...
+ * sysdeps/unix/sysv/linux/arm/pread.c: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/pread64.c: Move to ...
+ * sysdeps/unix/sysv/linux/arm/pread64.c: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/pwrite.c: Move to ...
+ * sysdeps/unix/sysv/linux/arm/pwrite.c: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/pwrite64.c: Move to ...
+ * sysdeps/unix/sysv/linux/arm/pwrite64.c: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/readahead.c: Move to ...
+ * sysdeps/unix/sysv/linux/arm/readahead.c: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/semctl.c: Move to ...
+ * sysdeps/unix/sysv/linux/arm/semctl.c: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/setcontext.S: Move to ...
+ * sysdeps/unix/sysv/linux/arm/setcontext.S: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/shmctl.c: Move to ...
+ * sysdeps/unix/sysv/linux/arm/shmctl.c: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/sigrestorer.S: Move to ...
+ * sysdeps/unix/sysv/linux/arm/sigrestorer.S: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/swapcontext.S: Move to ...
+ * sysdeps/unix/sysv/linux/arm/swapcontext.S: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/syscall.S: Move to ...
+ * sysdeps/unix/sysv/linux/arm/syscall.S: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/truncate64.c: Move to ...
+ * sysdeps/unix/sysv/linux/arm/truncate64.c: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/umount.c: Move to ...
+ * sysdeps/unix/sysv/linux/arm/umount.c: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/nptl/Makefile: Move to ...
+ * sysdeps/unix/sysv/linux/arm/nptl/Makefile: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/nptl/configure.in: Move to ...
+ * sysdeps/unix/sysv/linux/arm/nptl/configure.in: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/nptl/configure: Move to ...
+ * sysdeps/unix/sysv/linux/arm/nptl/configure: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/nptl/nptl-aeabi_unwind_cpp_pr1.c:
+ Move to ...
+ * sysdeps/unix/sysv/linux/arm/nptl/nptl-aeabi_unwind_cpp_pr1.c:
+ ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/nptl/rt-aeabi_unwind_cpp_pr1.c:
+ Move to ...
+ * sysdeps/unix/sysv/linux/arm/nptl/rt-aeabi_unwind_cpp_pr1.c: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/nptl/sysdep-cancel.h: Move to ...
+ * sysdeps/unix/sysv/linux/arm/nptl/sysdep-cancel.h: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/nptl/unwind-forcedunwind.c:
+ Move to ...
+ * sysdeps/unix/sysv/linux/arm/nptl/unwind-forcedunwind.c: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/nptl/unwind-resume.c: Move to ...
+ * sysdeps/unix/sysv/linux/arm/nptl/unwind-resume.c: ... here.
+ * sysdeps/unix/sysv/linux/arm/eabi/nptl/unwind.h: Move to ...
+ * sysdeps/unix/sysv/linux/arm/nptl/unwind.h: ... here.
+
2012-04-16 Andreas Jaeger <aj@suse.de>
* sysdeps/unix/sysv/linux/arm/ldsodefs.h: Undefine
+2012-04-21 Joseph Myers <joseph@codesourcery.com>
+
+ * sysdeps/unix/sysv/linux/mips/mips32/readahead.c: Include
+ sysdeps/unix/sysv/linux/arm/readahead.c not
+ sysdeps/unix/sysv/linux/arm/eabi/readahead.c.
+
2012-03-28 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/mips/bits/mman.h (MAP_STACK): Define.
ifeq ($(subdir),csu)
+# In order for unwinding to fail when it falls out of main, we need a
+# cantunwind marker. There's one in start.S. To make sure we reach it, add
+# unwind tables for __libc_start_main.
+CFLAGS-libc-start.c += -fexceptions
+
sysdep_routines += aeabi_read_tp libc-aeabi_read_tp
static-only-routines += aeabi_read_tp
shared-only-routines += libc-aeabi_read_tp
ifeq ($(subdir),stdlib)
gen-as-const-headers += ucontext_i.sym
endif
+
+# Add a syscall function to each library that needs one.
+
+ifeq ($(subdir),rt)
+librt-sysdep_routines += libc-do-syscall
+librt-shared-only-routines += libc-do-syscall
+endif
+
+ifeq ($(subdir),nptl)
+libpthread-sysdep_routines += libc-do-syscall
+libpthread-shared-only-routines += libc-do-syscall
+endif
+
+ifeq ($(subdir),resolv)
+libanl-sysdep_routines += libc-do-syscall
+libanl-shared-only-routines += libc-do-syscall
+endif
+
+ifeq ($(subdir),csu)
+sysdep_routines += libc-do-syscall
+endif
+
+ifeq ($(subdir),nscd)
+nscd-modules += libc-do-syscall
+endif
+
+ifeq ($(subdir),nss)
+libnss_db-sysdep_routines += libc-do-syscall
+libnss_db-shared-only-routines += libc-do-syscall
+endif
+
+ifeq ($(subdir),posix)
+LDFLAGS-tst-rfc3484 += $(common-objpfx)csu/libc-do-syscall.o
+LDFLAGS-tst-rfc3484-2 += $(common-objpfx)csu/libc-do-syscall.o
+LDFLAGS-tst-rfc3484-3 += $(common-objpfx)csu/libc-do-syscall.o
+endif
# This file is generated from configure.in by Autoconf. DO NOT EDIT!
- # Local configure fragment for sysdeps/unix/sysv/linux/arm/eabi.
+ # Local configure fragment for sysdeps/unix/sysv/linux/arm.
arch_minimum_kernel=2.6.16
libc_cv_gcc_unwind_find_fde=no
GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
-# Local configure fragment for sysdeps/unix/sysv/linux/arm/eabi.
+# Local configure fragment for sysdeps/unix/sysv/linux/arm.
arch_minimum_kernel=2.6.16
libc_cv_gcc_unwind_find_fde=no
+++ /dev/null
-ifeq ($(subdir),csu)
-# In order for unwinding to fail when it falls out of main, we need a
-# cantunwind marker. There's one in start.S. To make sure we reach it, add
-# unwind tables for __libc_start_main.
-CFLAGS-libc-start.c += -fexceptions
-endif
-
-# Add a syscall function to each library that needs one.
-
-ifeq ($(subdir),rt)
-librt-sysdep_routines += libc-do-syscall
-librt-shared-only-routines += libc-do-syscall
-endif
-
-ifeq ($(subdir),nptl)
-libpthread-sysdep_routines += libc-do-syscall
-libpthread-shared-only-routines += libc-do-syscall
-endif
-
-ifeq ($(subdir),resolv)
-libanl-sysdep_routines += libc-do-syscall
-libanl-shared-only-routines += libc-do-syscall
-endif
-
-ifeq ($(subdir),csu)
-sysdep_routines += libc-do-syscall
-endif
-
-ifeq ($(subdir),nscd)
-nscd-modules += libc-do-syscall
-endif
-
-ifeq ($(subdir),nss)
-libnss_db-sysdep_routines += libc-do-syscall
-libnss_db-shared-only-routines += libc-do-syscall
-endif
-
-ifeq ($(subdir),posix)
-LDFLAGS-tst-rfc3484 += $(common-objpfx)csu/libc-do-syscall.o
-LDFLAGS-tst-rfc3484-2 += $(common-objpfx)csu/libc-do-syscall.o
-LDFLAGS-tst-rfc3484-3 += $(common-objpfx)csu/libc-do-syscall.o
-endif
+++ /dev/null
-# File name Caller Syscall name # args Strong name Weak names
-
-# Semaphore and shm system calls. msgctl, shmctl, and semctl have C
-# wrappers (to set __IPC_64).
-msgget - msgget i:ii __msgget msgget
-msgrcv - msgrcv Ci:ibnii __msgrcv msgrcv
-msgsnd - msgsnd Ci:ibni __msgsnd msgsnd
-shmat - shmat i:ipi __shmat shmat
-shmdt - shmdt i:s __shmdt shmdt
-shmget - shmget i:iii __shmget shmget
-semop - semop i:ipi __semop semop
-semtimedop - semtimedop i:ipip semtimedop
-semget - semget i:iii __semget semget
-
-# proper socket implementations:
-accept - accept Ci:iBN __libc_accept __accept accept
-bind - bind i:ipi __bind bind
-connect - connect Ci:ipi __libc_connect __connect_internal __connect connect
-getpeername - getpeername i:ipp __getpeername getpeername
-getsockname - getsockname i:ipp __getsockname getsockname
-getsockopt - getsockopt i:iiiBN __getsockopt getsockopt
-listen - listen i:ii __listen listen
-recv - recv Ci:ibni __libc_recv __recv recv
-recvfrom - recvfrom Ci:ibniBN __libc_recvfrom __recvfrom recvfrom
-recvmsg - recvmsg Ci:ipi __libc_recvmsg __recvmsg recvmsg
-send - send Ci:ibni __libc_send __send send
-sendmsg - sendmsg Ci:ipi __libc_sendmsg __sendmsg sendmsg
-sendto - sendto Ci:ibnibn __libc_sendto __sendto sendto
-setsockopt - setsockopt i:iiibn __setsockopt setsockopt
-shutdown - shutdown i:ii __shutdown shutdown
-socket - socket i:iii __socket socket
-socketpair - socketpair i:iiif __socketpair socketpair
+++ /dev/null
-/* Copyright (C) 2005, 2006, 2007, 2009
- Free Software Foundation, Inc.
-
- This file is part of the GNU C Library.
-
- Contributed by Daniel Jacobowitz <dan@codesourcery.com>, Oct 2005.
-
- 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, see
- <http://www.gnu.org/licenses/>. */
-
-#ifndef _LINUX_ARM_EABI_SYSDEP_H
-#define _LINUX_ARM_EABI_SYSDEP_H 1
-
-#include <arm/sysdep.h>
-
-#include <tls.h>
-
-#if __NR_SYSCALL_BASE != 0
-# error Kernel headers are too old
-#endif
-
-/* Don't use stime, even if the kernel headers define it. We have
- settimeofday, and some EABI kernels have removed stime. Similarly
- use setitimer to implement alarm. */
-#undef __NR_stime
-#undef __NR_alarm
-
-/* The ARM EABI user interface passes the syscall number in r7, instead
- of in the swi. This is more efficient, because the kernel does not need
- to fetch the swi from memory to find out the number; which can be painful
- with separate I-cache and D-cache. Make sure to use 0 for the SWI
- argument; otherwise the (optional) compatibility code for APCS binaries
- may be invoked. */
-
-#if defined(__thumb__)
-/* We can not expose the use of r7 to the compiler. GCC (as
- of 4.5) uses r7 as the hard frame pointer for Thumb - although
- for Thumb-2 it isn't obviously a better choice than r11.
- And GCC does not support asms that conflict with the frame
- pointer.
-
- This would be easier if syscall numbers never exceeded 255,
- but they do. For the moment the LOAD_ARGS_7 is sacrificed.
- We can't use push/pop inside the asm because that breaks
- unwinding (i.e. thread cancellation) for this frame. We can't
- locally save and restore r7, because we do not know if this
- function uses r7 or if it is our caller's r7; if it is our caller's,
- then unwinding will fail higher up the stack. So we move the
- syscall out of line and provide its own unwind information. */
-#undef LOAD_ARGS_7
-#undef INTERNAL_SYSCALL_RAW
-#define INTERNAL_SYSCALL_RAW(name, err, nr, args...) \
- ({ \
- register int _a1 asm ("a1"); \
- int _nametmp = name; \
- LOAD_ARGS_##nr (args) \
- register int _name asm ("ip") = _nametmp; \
- asm volatile ("bl __libc_do_syscall" \
- : "=r" (_a1) \
- : "r" (_name) ASM_ARGS_##nr \
- : "memory", "lr"); \
- _a1; })
-#else /* ARM */
-#undef INTERNAL_SYSCALL_RAW
-#define INTERNAL_SYSCALL_RAW(name, err, nr, args...) \
- ({ \
- register int _a1 asm ("r0"), _nr asm ("r7"); \
- LOAD_ARGS_##nr (args) \
- _nr = name; \
- asm volatile ("swi 0x0 @ syscall " #name \
- : "=r" (_a1) \
- : "r" (_nr) ASM_ARGS_##nr \
- : "memory"); \
- _a1; })
-#endif
-
-/* For EABI, non-constant syscalls are actually pretty easy... */
-#undef INTERNAL_SYSCALL_NCS
-#define INTERNAL_SYSCALL_NCS(number, err, nr, args...) \
- INTERNAL_SYSCALL_RAW (number, err, nr, args)
-
-/* We must save and restore r7 (call-saved) for the syscall number.
- We never make function calls from inside here (only potentially
- signal handlers), so we do not bother with doubleword alignment.
-
- Just like the APCS syscall convention, the EABI syscall convention uses
- r0 through r6 for up to seven syscall arguments. None are ever passed to
- the kernel on the stack, although incoming arguments are on the stack for
- syscalls with five or more arguments.
-
- The assembler will convert the literal pool load to a move for most
- syscalls. */
-
-#undef DO_CALL
-#define DO_CALL(syscall_name, args) \
- DOARGS_##args; \
- ldr r7, =SYS_ify (syscall_name); \
- swi 0x0; \
- UNDOARGS_##args
-
-#undef DOARGS_0
-#define DOARGS_0 \
- .fnstart; \
- str r7, [sp, #-4]!; \
- cfi_adjust_cfa_offset (4); \
- cfi_rel_offset (r7, 0); \
- .save { r7 }
-#undef DOARGS_1
-#define DOARGS_1 DOARGS_0
-#undef DOARGS_2
-#define DOARGS_2 DOARGS_0
-#undef DOARGS_3
-#define DOARGS_3 DOARGS_0
-#undef DOARGS_4
-#define DOARGS_4 DOARGS_0
-#undef DOARGS_5
-#define DOARGS_5 \
- .fnstart; \
- stmfd sp!, {r4, r7}; \
- cfi_adjust_cfa_offset (8); \
- cfi_rel_offset (r4, 0); \
- cfi_rel_offset (r7, 4); \
- .save { r4, r7 }; \
- ldr r4, [sp, #8]
-#undef DOARGS_6
-#define DOARGS_6 \
- .fnstart; \
- mov ip, sp; \
- stmfd sp!, {r4, r5, r7}; \
- cfi_adjust_cfa_offset (12); \
- cfi_rel_offset (r4, 0); \
- cfi_rel_offset (r5, 4); \
- cfi_rel_offset (r7, 8); \
- .save { r4, r5, r7 }; \
- ldmia ip, {r4, r5}
-#undef DOARGS_7
-#define DOARGS_7 \
- .fnstart; \
- mov ip, sp; \
- stmfd sp!, {r4, r5, r6, r7}; \
- cfi_adjust_cfa_offset (16); \
- cfi_rel_offset (r4, 0); \
- cfi_rel_offset (r5, 4); \
- cfi_rel_offset (r6, 8); \
- cfi_rel_offset (r7, 12); \
- .save { r4, r5, r6, r7 }; \
- ldmia ip, {r4, r5, r6}
-
-#undef UNDOARGS_0
-#define UNDOARGS_0 \
- ldr r7, [sp], #4; \
- cfi_adjust_cfa_offset (-4); \
- cfi_restore (r7); \
- .fnend
-#undef UNDOARGS_1
-#define UNDOARGS_1 UNDOARGS_0
-#undef UNDOARGS_2
-#define UNDOARGS_2 UNDOARGS_0
-#undef UNDOARGS_3
-#define UNDOARGS_3 UNDOARGS_0
-#undef UNDOARGS_4
-#define UNDOARGS_4 UNDOARGS_0
-#undef UNDOARGS_5
-#define UNDOARGS_5 \
- ldmfd sp!, {r4, r7}; \
- cfi_adjust_cfa_offset (-8); \
- cfi_restore (r4); \
- cfi_restore (r7); \
- .fnend
-#undef UNDOARGS_6
-#define UNDOARGS_6 \
- ldmfd sp!, {r4, r5, r7}; \
- cfi_adjust_cfa_offset (-12); \
- cfi_restore (r4); \
- cfi_restore (r5); \
- cfi_restore (r7); \
- .fnend
-#undef UNDOARGS_7
-#define UNDOARGS_7 \
- ldmfd sp!, {r4, r5, r6, r7}; \
- cfi_adjust_cfa_offset (-16); \
- cfi_restore (r4); \
- cfi_restore (r5); \
- cfi_restore (r6); \
- cfi_restore (r7); \
- .fnend
-
-#endif /* _LINUX_ARM_EABI_SYSDEP_H */
+++ /dev/null
-/* Copyright (C) 1995, 1996, 1997, 1998, 2003, 2004, 2005
- 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, see
- <http://www.gnu.org/licenses/>. */
-
-#include <sysdep-cancel.h>
-#include <socketcall.h>
-
-#define P(a, b) P2(a, b)
-#define P2(a, b) a##b
-
- .text
-/* The socket-oriented system calls are handled unusally in Linux.
- They are all gated through the single `socketcall' system call number.
- `socketcall' takes two arguments: the first is the subcode, specifying
- which socket function is being called; and the second is a pointer to
- the arguments to the specific function.
-
- The .S files for the other calls just #define socket and #include this. */
-
-#ifndef __socket
-# ifndef NO_WEAK_ALIAS
-# define __socket P(__,socket)
-# else
-# define __socket socket
-# endif
-#endif
-
-#define PUSHARGS_1 str a1, [sp, $-4]!
-#define PUSHARGS_2 stmfd sp!, {a1, a2}
-#define PUSHARGS_3 stmfd sp!, {a1, a2, a3}
-#define PUSHARGS_4 stmfd sp!, {a1, a2, a3, a4}
-#define PUSHARGS_5 stmfd sp!, {a1, a2, a3, a4} /* Caller has already pushed arg 5 */
-#define PUSHARGS_6 stmfd sp!, {a1, a2, a3, a4}
-
-#define POPARGS_1 add sp, sp, #4
-#define POPARGS_2 add sp, sp, #8
-#define POPARGS_3 add sp, sp, #12
-#define POPARGS_4 add sp, sp, #16
-#define POPARGS_5 add sp, sp, #16
-#define POPARGS_6 add sp, sp, #16
-
-#ifndef NARGS
-#define NARGS 3 /* If we were called with no wrapper, this is really socket() */
-#endif
-
-#if defined NEED_CANCELLATION && defined CENABLE
- PSEUDO_PROLOGUE
-#endif
-
-.globl __socket
-ENTRY (__socket)
- /* This code previously moved sp into ip and stored the args using
- stmdb ip!, {a1-a4}. It did not modify sp, so the stack never had
- to be restored after the syscall completed. It saved an
- instruction and meant no stack cleanup work was required.
-
- This will not work in the case of a socket call being interrupted
- by a signal. If the signal handler uses any stack the arguments
- to socket will be trashed. The results of a restart of any
- socket call are then unpredictable. */
-
- /* Push args onto the stack. */
- P(PUSHARGS_,NARGS)
-
-#if defined NEED_CANCELLATION && defined CENABLE
- SINGLE_THREAD_P
- bne 1f
-#endif
-
- /* Do the system call trap. */
- mov a1, $P(SOCKOP_,socket)
- mov a2, sp
- swi SYS_ify(socketcall)
-
- /* Pop args off the stack */
- P(POPARGS_,NARGS)
-
- /* r0 is < 0 if there was an error. */
- cmn r0, $124
- RETINSTR(cc, r14)
- b PLTJMP(SYSCALL_ERROR)
-
-#if defined NEED_CANCELLATION && defined CENABLE
-1:
- str lr, [sp, #-4]!
- CENABLE
- mov ip, r0
-
- mov r0, #P(SOCKOP_,socket)
- add r1, sp, #4
- swi SYS_ify(socketcall)
-
- str r0, [sp, #-4]!
- mov r0, ip
- CDISABLE
- ldr r0, [sp], #4
- ldr lr, [sp], #4
-
- P(POPARGS_,NARGS)
-
- /* r0 is < 0 if there was an error. */
- cmn r0, $124
- RETINSTR(cc, r14)
- b PLTJMP(SYSCALL_ERROR)
-#endif
-
-PSEUDO_END (__socket)
-
-#ifndef NO_WEAK_ALIAS
-weak_alias (__socket, socket)
-#endif
# File name Caller Syscall name # args Strong name Weak names
-syscall - syscall 7 syscall
-oldgetrlimit EXTRA getrlimit i:ip __old_getrlimit getrlimit@GLIBC_2.0
-oldsetrlimit EXTRA setrlimit i:ip __old_setrlimit setrlimit@GLIBC_2.0
-
prlimit64 EXTRA prlimit64 i:iipp prlimit64
fanotify_mark EXTRA fanotify_mark i:iiiiis fanotify_mark
+
+# Semaphore and shm system calls. msgctl, shmctl, and semctl have C
+# wrappers (to set __IPC_64).
+msgget - msgget i:ii __msgget msgget
+msgrcv - msgrcv Ci:ibnii __msgrcv msgrcv
+msgsnd - msgsnd Ci:ibni __msgsnd msgsnd
+shmat - shmat i:ipi __shmat shmat
+shmdt - shmdt i:s __shmdt shmdt
+shmget - shmget i:iii __shmget shmget
+semop - semop i:ipi __semop semop
+semtimedop - semtimedop i:ipip semtimedop
+semget - semget i:iii __semget semget
+
+# proper socket implementations:
+accept - accept Ci:iBN __libc_accept __accept accept
+bind - bind i:ipi __bind bind
+connect - connect Ci:ipi __libc_connect __connect_internal __connect connect
+getpeername - getpeername i:ipp __getpeername getpeername
+getsockname - getsockname i:ipp __getsockname getsockname
+getsockopt - getsockopt i:iiiBN __getsockopt getsockopt
+listen - listen i:ii __listen listen
+recv - recv Ci:ibni __libc_recv __recv recv
+recvfrom - recvfrom Ci:ibniBN __libc_recvfrom __recvfrom recvfrom
+recvmsg - recvmsg Ci:ipi __libc_recvmsg __recvmsg recvmsg
+send - send Ci:ibni __libc_send __send send
+sendmsg - sendmsg Ci:ipi __libc_sendmsg __sendmsg sendmsg
+sendto - sendto Ci:ibnibn __libc_sendto __sendto sendto
+setsockopt - setsockopt i:iiibn __setsockopt setsockopt
+shutdown - shutdown i:ii __shutdown shutdown
+socket - socket i:iii __socket socket
+socketpair - socketpair i:iiif __socketpair socketpair
-/* Copyright (C) 1992, 93, 1995-2000, 2002, 2003, 2005, 2006, 2009
- Free Software Foundation, Inc.
+/* Copyright (C) 1992-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>, August 1995.
ARM changes by Philip Blundell, <pjb27@cam.ac.uk>, May 1997.
#include <tls.h>
+#if __NR_SYSCALL_BASE != 0
+# error Kernel headers are too old
+#endif
+
+/* Don't use stime, even if the kernel headers define it. We have
+ settimeofday, and some EABI kernels have removed stime. Similarly
+ use setitimer to implement alarm. */
+#undef __NR_stime
+#undef __NR_alarm
+
/* In order to get __set_errno() definition in INLINE_SYSCALL. */
#ifndef __ASSEMBLER__
#include <errno.h>
# define SYSCALL_ERROR __syscall_error
#endif
+/* The ARM EABI user interface passes the syscall number in r7, instead
+ of in the swi. This is more efficient, because the kernel does not need
+ to fetch the swi from memory to find out the number; which can be painful
+ with separate I-cache and D-cache. Make sure to use 0 for the SWI
+ argument; otherwise the (optional) compatibility code for APCS binaries
+ may be invoked. */
+
/* Linux takes system call args in registers:
- syscall number in the SWI instruction
arg 1 r0
arg 2 r1
arg 3 r2
*/
+/* We must save and restore r7 (call-saved) for the syscall number.
+ We never make function calls from inside here (only potentially
+ signal handlers), so we do not bother with doubleword alignment.
+
+ Just like the APCS syscall convention, the EABI syscall convention uses
+ r0 through r6 for up to seven syscall arguments. None are ever passed to
+ the kernel on the stack, although incoming arguments are on the stack for
+ syscalls with five or more arguments.
+
+ The assembler will convert the literal pool load to a move for most
+ syscalls. */
+
#undef DO_CALL
#define DO_CALL(syscall_name, args) \
DOARGS_##args; \
- swi SYS_ify (syscall_name); \
+ ldr r7, =SYS_ify (syscall_name); \
+ swi 0x0; \
UNDOARGS_##args
-#define DOARGS_0 /* nothing */
-#define DOARGS_1 /* nothing */
-#define DOARGS_2 /* nothing */
-#define DOARGS_3 /* nothing */
-#define DOARGS_4 /* nothing */
-#define DOARGS_5 \
- str r4, [sp, $-4]!; \
+#undef DOARGS_0
+#define DOARGS_0 \
+ .fnstart; \
+ str r7, [sp, #-4]!; \
cfi_adjust_cfa_offset (4); \
+ cfi_rel_offset (r7, 0); \
+ .save { r7 }
+#undef DOARGS_1
+#define DOARGS_1 DOARGS_0
+#undef DOARGS_2
+#define DOARGS_2 DOARGS_0
+#undef DOARGS_3
+#define DOARGS_3 DOARGS_0
+#undef DOARGS_4
+#define DOARGS_4 DOARGS_0
+#undef DOARGS_5
+#define DOARGS_5 \
+ .fnstart; \
+ stmfd sp!, {r4, r7}; \
+ cfi_adjust_cfa_offset (8); \
cfi_rel_offset (r4, 0); \
- ldr r4, [sp, $4]
+ cfi_rel_offset (r7, 4); \
+ .save { r4, r7 }; \
+ ldr r4, [sp, #8]
+#undef DOARGS_6
#define DOARGS_6 \
+ .fnstart; \
mov ip, sp; \
- stmfd sp!, {r4, r5}; \
- cfi_adjust_cfa_offset (8); \
+ stmfd sp!, {r4, r5, r7}; \
+ cfi_adjust_cfa_offset (12); \
cfi_rel_offset (r4, 0); \
cfi_rel_offset (r5, 4); \
+ cfi_rel_offset (r7, 8); \
+ .save { r4, r5, r7 }; \
ldmia ip, {r4, r5}
+#undef DOARGS_7
#define DOARGS_7 \
+ .fnstart; \
mov ip, sp; \
- stmfd sp!, {r4, r5, r6}; \
- cfi_adjust_cfa_offset (12); \
+ stmfd sp!, {r4, r5, r6, r7}; \
+ cfi_adjust_cfa_offset (16); \
cfi_rel_offset (r4, 0); \
cfi_rel_offset (r5, 4); \
cfi_rel_offset (r6, 8); \
+ cfi_rel_offset (r7, 12); \
+ .save { r4, r5, r6, r7 }; \
ldmia ip, {r4, r5, r6}
-#define UNDOARGS_0 /* nothing */
-#define UNDOARGS_1 /* nothing */
-#define UNDOARGS_2 /* nothing */
-#define UNDOARGS_3 /* nothing */
-#define UNDOARGS_4 /* nothing */
-#define UNDOARGS_5 \
- ldr r4, [sp], $4; \
+#undef UNDOARGS_0
+#define UNDOARGS_0 \
+ ldr r7, [sp], #4; \
cfi_adjust_cfa_offset (-4); \
- cfi_restore (r4)
-#define UNDOARGS_6 \
- ldmfd sp!, {r4, r5}; \
+ cfi_restore (r7); \
+ .fnend
+#undef UNDOARGS_1
+#define UNDOARGS_1 UNDOARGS_0
+#undef UNDOARGS_2
+#define UNDOARGS_2 UNDOARGS_0
+#undef UNDOARGS_3
+#define UNDOARGS_3 UNDOARGS_0
+#undef UNDOARGS_4
+#define UNDOARGS_4 UNDOARGS_0
+#undef UNDOARGS_5
+#define UNDOARGS_5 \
+ ldmfd sp!, {r4, r7}; \
cfi_adjust_cfa_offset (-8); \
cfi_restore (r4); \
- cfi_restore (r5)
-#define UNDOARGS_7 \
- ldmfd sp!, {r4, r5, r6}; \
+ cfi_restore (r7); \
+ .fnend
+#undef UNDOARGS_6
+#define UNDOARGS_6 \
+ ldmfd sp!, {r4, r5, r7}; \
cfi_adjust_cfa_offset (-12); \
cfi_restore (r4); \
cfi_restore (r5); \
- cfi_restore (r6)
+ cfi_restore (r7); \
+ .fnend
+#undef UNDOARGS_7
+#define UNDOARGS_7 \
+ ldmfd sp!, {r4, r5, r6, r7}; \
+ cfi_adjust_cfa_offset (-16); \
+ cfi_restore (r4); \
+ cfi_restore (r5); \
+ cfi_restore (r6); \
+ cfi_restore (r7); \
+ .fnend
#else /* not __ASSEMBLER__ */
#undef INTERNAL_SYSCALL_DECL
#define INTERNAL_SYSCALL_DECL(err) do { } while (0)
-#undef INTERNAL_SYSCALL_RAW
-#define INTERNAL_SYSCALL_RAW(name, err, nr, args...) \
- ({ unsigned int _sys_result; \
- { \
- register int _a1 asm ("a1"); \
+#if defined(__thumb__)
+/* We can not expose the use of r7 to the compiler. GCC (as
+ of 4.5) uses r7 as the hard frame pointer for Thumb - although
+ for Thumb-2 it isn't obviously a better choice than r11.
+ And GCC does not support asms that conflict with the frame
+ pointer.
+
+ This would be easier if syscall numbers never exceeded 255,
+ but they do. For the moment the LOAD_ARGS_7 is sacrificed.
+ We can't use push/pop inside the asm because that breaks
+ unwinding (i.e. thread cancellation) for this frame. We can't
+ locally save and restore r7, because we do not know if this
+ function uses r7 or if it is our caller's r7; if it is our caller's,
+ then unwinding will fail higher up the stack. So we move the
+ syscall out of line and provide its own unwind information. */
+# undef INTERNAL_SYSCALL_RAW
+# define INTERNAL_SYSCALL_RAW(name, err, nr, args...) \
+ ({ \
+ register int _a1 asm ("a1"); \
+ int _nametmp = name; \
+ LOAD_ARGS_##nr (args) \
+ register int _name asm ("ip") = _nametmp; \
+ asm volatile ("bl __libc_do_syscall" \
+ : "=r" (_a1) \
+ : "r" (_name) ASM_ARGS_##nr \
+ : "memory", "lr"); \
+ _a1; })
+#else /* ARM */
+# undef INTERNAL_SYSCALL_RAW
+# define INTERNAL_SYSCALL_RAW(name, err, nr, args...) \
+ ({ \
+ register int _a1 asm ("r0"), _nr asm ("r7"); \
LOAD_ARGS_##nr (args) \
- asm volatile ("swi %1 @ syscall " #name \
+ _nr = name; \
+ asm volatile ("swi 0x0 @ syscall " #name \
: "=r" (_a1) \
- : "i" (name) ASM_ARGS_##nr \
+ : "r" (_nr) ASM_ARGS_##nr \
: "memory"); \
- _sys_result = _a1; \
- } \
- (int) _sys_result; })
+ _a1; })
+#endif
#undef INTERNAL_SYSCALL
#define INTERNAL_SYSCALL(name, err, nr, args...) \
LOAD_ARGS_5 (a1, a2, a3, a4, a5) \
register int _v2 asm ("v2") = _v2tmp;
#define ASM_ARGS_6 ASM_ARGS_5, "r" (_v2)
-#define LOAD_ARGS_7(a1, a2, a3, a4, a5, a6, a7) \
- int _v3tmp = (int) (a7); \
- LOAD_ARGS_6 (a1, a2, a3, a4, a5, a6) \
+#ifndef __thumb__
+# define LOAD_ARGS_7(a1, a2, a3, a4, a5, a6, a7) \
+ int _v3tmp = (int) (a7); \
+ LOAD_ARGS_6 (a1, a2, a3, a4, a5, a6) \
register int _v3 asm ("v3") = _v3tmp;
-#define ASM_ARGS_7 ASM_ARGS_6, "r" (_v3)
-
-/* We can't implement non-constant syscalls directly since the syscall
- number is normally encoded in the instruction. So use SYS_syscall. */
-#define INTERNAL_SYSCALL_NCS(number, err, nr, args...) \
- INTERNAL_SYSCALL_NCS_##nr (number, err, args)
-
-#define INTERNAL_SYSCALL_NCS_0(number, err, args...) \
- INTERNAL_SYSCALL (syscall, err, 1, number, args)
-#define INTERNAL_SYSCALL_NCS_1(number, err, args...) \
- INTERNAL_SYSCALL (syscall, err, 2, number, args)
-#define INTERNAL_SYSCALL_NCS_2(number, err, args...) \
- INTERNAL_SYSCALL (syscall, err, 3, number, args)
-#define INTERNAL_SYSCALL_NCS_3(number, err, args...) \
- INTERNAL_SYSCALL (syscall, err, 4, number, args)
-#define INTERNAL_SYSCALL_NCS_4(number, err, args...) \
- INTERNAL_SYSCALL (syscall, err, 5, number, args)
-#define INTERNAL_SYSCALL_NCS_5(number, err, args...) \
- INTERNAL_SYSCALL (syscall, err, 6, number, args)
+# define ASM_ARGS_7 ASM_ARGS_6, "r" (_v3)
+#endif
+
+/* For EABI, non-constant syscalls are actually pretty easy... */
+#undef INTERNAL_SYSCALL_NCS
+#define INTERNAL_SYSCALL_NCS(number, err, nr, args...) \
+ INTERNAL_SYSCALL_RAW (number, err, nr, args)
#endif /* __ASSEMBLER__ */
-#include <sysdeps/unix/sysv/linux/arm/eabi/readahead.c>
+#include <sysdeps/unix/sysv/linux/arm/readahead.c>
projects / platform / upstream / linaro-glibc.git / commitdiff