+1999-04-12 Philip Blundell <philb@gnu.org>
+
+ * elf/elf.h: Update ARM definitions to match current gas2.
+
+ * sysdeps/arm/bits/endian.h: Support big endian operation.
+
+ * sysdeps/unix/sysv/linux/arm/ioperm.c (_outw, _outb, _outl):
+ Don't bother range checking the port number.
+
+ * sysdeps/unix/sysv/linux/arm/vfork.S: New file.
+
+ * sysdeps/unix/sysv/linux/arm/sysdep.h (INLINE_SYSCALL): Include
+ the syscall name in assembler output for ease of debugging.
+
+ * sysdeps/unix/sysv/linux/arm/sigaction.c: Don't rely on undefined
+ compiler behaviour.
+ * sysdeps/unix/sysv/linux/arm/sigrestorer.S: New file.
+ * sysdeps/unix/sysv/linux/arm/Makefile [$(subdir) = signal]
+ (sysdep_routines): Add sigrestorer.
+
+ * string/tester.c (test_strcpy): Add new tests for unaligned
+ arguments.
+ * sysdeps/arm/bits/string.h: Delete inline implementations of
+ strcpy and stpcpy.
+
1999-04-11 Ulrich Drepper <drepper@cygnus.com>
* libio/Makefile (CPPFLAGS-.o): Don't define IO_DEBUG.
#define EF_ARM_APCS_26 0x08
#define EF_ARM_APCS_FLOAT 0x10
#define EF_ARM_PIC 0x20
+#define EF_ALIGN8 0x40 /* 8-bit structure alignment is in use */
+#define EF_NEW_ABI 0x80
+#define EF_OLD_ABI 0x100
/* Additional symbol types for Thumb */
#define STT_ARM_TFUNC 0xd
#define R_ARM_PC24 1 /* PC relative 26 bit branch */
#define R_ARM_ABS32 2 /* Direct 32 bit */
#define R_ARM_REL32 3 /* PC relative 32 bit */
-#define R_ARM_ABS8 4 /* Direct 8 bit */
+#define R_ARM_PC13 4
#define R_ARM_ABS16 5 /* Direct 16 bit */
#define R_ARM_ABS12 6 /* Direct 12 bit */
#define R_ARM_THM_ABS5 7
-#define R_ARM_THM_PC22 8
+#define R_ARM_ABS8 8 /* Direct 8 bit */
#define R_ARM_SBREL32 9
-#define R_ARM_AMP_VCALL9 10
-#define R_ARM_THM_PC11 11 /* Thumb unconditional branch */
-#define R_ARM_THM_PC9 12 /* Thumb conditional branch */
-#define R_ARM_GNU_VTINHERIT 13
-#define R_ARM_GNU_VTENTRY 14
+#define R_ARM_THM_PC22 10
+#define R_ARM_THM_PC8 11
+#define R_ARM_AMP_VCALL9 12
+#define R_ARM_SWI24 13
+#define R_ARM_THM_SWI8 14
+#define R_ARM_XPC25 15
+#define R_ARM_THM_XPC22 16
#define R_ARM_COPY 20 /* Copy symbol at runtime */
#define R_ARM_GLOB_DAT 21 /* Create GOT entry */
#define R_ARM_JUMP_SLOT 22 /* Create PLT entry */
#define R_ARM_GOTPC 25 /* 32 bit PC relative offset to GOT */
#define R_ARM_GOT32 26 /* 32 bit GOT entry */
#define R_ARM_PLT32 27 /* 32 bit PLT address */
+#define R_ARM_GNU_VTENTRY 100
+#define R_ARM_GNU_VTINHERIT 101
+#define R_ARM_THM_PC11 102 /* thumb unconditional branch */
+#define R_ARM_THM_PC9 103 /* thumb conditional branch */
+#define R_ARM_RXPC25 249
#define R_ARM_RSBREL32 250
#define R_ARM_THM_RPC22 251
#define R_ARM_RREL32 252
/* Tester for string functions.
- Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
+ Copyright (C) 1995, 1996, 1997, 1998, 1999 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
void
test_strcpy (void)
{
+ int i;
it = "strcpy";
check (strcpy (one, "abcd") == one, 1); /* Returned value. */
equal (one, "abcd", 2); /* Basic test. */
(void) strcpy (one, "");
equal (one, "", 7); /* Boundary condition. */
+
+ for (i = 0; i < 16; i++)
+ {
+ (void) strcpy (one + i, "hi there"); /* Unaligned destination. */
+ equal (one + i, "hi there", 8 + (i * 2));
+ (void) strcpy (two, one + i); /* Unaligned source. */
+ equal (two, "hi there", 9 + (i * 2));
+ }
}
void
# error "Never use <bits/endian.h> directly; include <endian.h> instead."
#endif
+#ifdef __ARMEB__
+#define __BYTE_ORDER __BIG_ENDIAN
+#else
#define __BYTE_ORDER __LITTLE_ENDIAN
+#endif
#define __FLOAT_WORD_ORDER __BIG_ENDIAN
/* Optimized, inlined string functions. ARM version.
- Copyright (C) 1998 Free Software Foundation, Inc.
+ Copyright (C) 1998, 1999 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
<bits/string2.h> since they don't work on the ARM. */
#define _HAVE_STRING_ARCH_strcpy 1
#define _HAVE_STRING_ARCH_stpcpy 1
-
-/* We only provide optimizations if GNU CC is used and this is a little
- endian system (the code below does not work on big endian machines).
- With current versions of GCC these optimi\ations produce quite a large
- amount of code so we only enable them if the user specifically asked
- for it. */
-#if !defined __NO_STRING_INLINES && defined __GNUC__ && __GNUC__ >= 2 \
- && !defined __ARMEB__ && defined __USE_STRING_INLINES
-
-/* Copy SRC to DEST. */
-#define strcpy(dest, src) \
- (__extension__ (__builtin_constant_p (src) \
- ? (__string2_1bptr_p (src) && strlen (src) + 1 <= 8 \
- ? __strcpy_small (dest, src, strlen (src) + 1) \
- : (char *) memcpy (dest, src, strlen (src) + 1)) \
- : strcpy (dest, src)))
-
-#define __strcpy_small(dest, src, srclen) \
- (__extension__ ({ char *__dest = (char *) (dest); \
- const char *__src = (const char *) (src); \
- size_t __srclen = (srclen); \
- switch (__srclen) \
- { \
- case 5: \
- *((unsigned long int *) __dest) = \
- *((const unsigned long int *) (__src)); \
- __dest += 4; \
- __src += 4; \
- case 1: \
- *__dest++ = '\0'; \
- break; \
- case 6: \
- *((unsigned long int *) __dest) = \
- *((const unsigned long int *) (__src)); \
- __dest += 4; \
- __src += 4; \
- case 2: \
- *((unsigned short int *) __dest) = \
- __src[0]; \
- __dest += 2; \
- break; \
- case 7: \
- *((unsigned long int *) __dest) = \
- *((const unsigned long int *) (__src)); \
- __dest += 4; \
- __src += 4; \
- case 3: \
- *((unsigned short int *) __dest) = \
- *((const unsigned short int *) (__src)); \
- __dest[2] = '\0'; \
- __dest += 3; \
- break; \
- case 8: \
- *((unsigned long int *) __dest) = \
- *((const unsigned long int *) (__src)); \
- __dest += 4; \
- __src += 4; \
- case 4: \
- *((unsigned long int *) __dest) = \
- *((const unsigned short int *) (__src)) | \
- (__src[2] << 16); \
- __dest += 4; \
- break; \
- } \
- (__dest - __srclen) ; }))
-
-/* Copy SRC to DEST, returning pointer to final NUL byte. */
-#define __stpcpy(dest, src) \
- (__extension__ (__builtin_constant_p (src) \
- ? (__string2_1bptr_p (src) && strlen (src) + 1 <= 8 \
- ? __stpcpy_small (dest, src, strlen (src) + 1) \
- : ((char *) __mempcpy (dest, src, strlen (src) + 1) - 1))\
- : __stpcpy (dest, src)))
-
-#define __stpcpy_small(dest, src, srclen) \
- (__extension__ ({ char *__dest = (char *) (dest); \
- const char *__src = (const char *) (src); \
- switch (srclen) \
- { \
- case 5: \
- *((unsigned long int *) __dest) = \
- *((const unsigned long int *) (__src)); \
- __dest += 4; \
- __src += 4; \
- case 1: \
- *__dest++ = '\0'; \
- break; \
- case 6: \
- *((unsigned long int *) __dest) = \
- *((const unsigned long int *) (__src)); \
- __dest += 4; \
- __src += 4; \
- case 2: \
- *((unsigned short int *) __dest) = \
- __src[0]; \
- __dest += 2; \
- break; \
- case 7: \
- *((unsigned long int *) __dest) = \
- *((const unsigned long int *) (__src)); \
- __dest += 4; \
- __src += 4; \
- case 3: \
- *((unsigned short int *) __dest) = \
- *((const unsigned short int *) (__src)); \
- __dest[2] = '\0'; \
- __dest += 3; \
- break; \
- case 8: \
- *((unsigned long int *) __dest) = \
- *((const unsigned long int *) (__src)); \
- __dest += 4; \
- __src += 4; \
- case 4: \
- *((unsigned long int *) __dest) = \
- *((const unsigned short int *) (__src)) | \
- (__src[2] << 16); \
- __dest += 4; \
- break; \
- } \
- __dest; }))
-
-#endif
ifeq ($(subdir),signal)
sysdep_routines += rt_sigsuspend rt_sigprocmask rt_sigtimedwait \
- rt_sigqueueinfo rt_sigaction rt_sigpending
+ rt_sigqueueinfo rt_sigaction rt_sigpending \
+ sigrestorer
endif
-/* Copyright (C) 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Phil Blundell, based on the Alpha version by
David Mosberger.
void
_outb (unsigned char b, unsigned long int port)
{
- if (port >= MAX_PORT)
- return;
-
*((volatile unsigned char *)(IO_ADDR (port))) = b;
}
void
_outw (unsigned short b, unsigned long int port)
{
- if (port >= MAX_PORT)
- return;
-
*((volatile unsigned short *)(IO_ADDR (port))) = b;
}
void
_outl (unsigned int b, unsigned long int port)
{
- if (port >= MAX_PORT)
- return;
-
*((volatile unsigned long *)(IO_ADDR (port))) = b;
}
#define SA_RESTORER 0x04000000
+extern void __default_sa_restorer(void);
+extern void __default_rt_sa_restorer(void);
+
/* When RT signals are in use we need to use a different return stub. */
#ifdef __NR_rt_sigreturn
#define choose_restorer(flags) \
- (flags & SA_SIGINFO) ? &&__default_rt_sa_restorer \
- : &&__default_sa_restorer
+ (flags & SA_SIGINFO) ? __default_rt_sa_restorer \
+ : __default_sa_restorer
#else
#define choose_restorer(flags) \
&&__default_sa_restorer
#endif
}
return result;
-
- /* If no SA_RESTORER function was specified by the application we use
- this one. This avoids the need for the kernel to synthesise a return
- instruction on the stack, which would involve expensive cache flushes. */
- __default_sa_restorer:
- asm volatile ("swi %0" : : "i" (__NR_sigreturn));
-
-#ifdef __NR_rt_sigreturn
- __default_rt_sa_restorer:
- asm volatile ("swi %0" : : "i" (__NR_rt_sigreturn));
-#endif
-
- /* NOTREACHED */
- return -1;
}
weak_alias (__sigaction, sigaction)
--- /dev/null
+/* Copyright (C) 1999 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 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 <sysdep.h>
+
+/* If no SA_RESTORER function was specified by the application we use
+ one of these. This avoids the need for the kernel to synthesise a return
+ instruction on the stack, which would involve expensive cache flushes. */
+
+ENTRY(__default_sa_restorer)
+ swi SYS_ify(sigreturn)
+
+#ifdef __NR_rt_sigreturn
+
+ENTRY(__default_rt_sa_restorer)
+ swi SYS_ify(rt_sigreturn)
+
+#endif
{ \
register int _a1 asm ("a1"); \
LOAD_ARGS_##nr (args) \
- asm volatile ("swi %1" \
+ asm volatile ("swi %1 @ syscall " #name \
: "=r" (_a1) \
: "i" (SYS_ify(name)) ASM_ARGS_##nr \
: "a1"); \
--- /dev/null
+/* Copyright (C) 1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Philip Blundell <philb@gnu.org>.
+
+ 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 <sysdep.h>
+#define _ERRNO_H 1
+#include <bits/errno.h>
+
+/* Clone the calling process, but without copying the whole address space.
+ The calling process is suspended until the new process exits or is
+ replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
+ and the process ID of the new process to the old process. */
+
+ENTRY (__vfork)
+
+#ifdef __NR_vfork
+ swi __NR_vfork
+ cmn a1, #4096
+ RETINSTR(movcc, pc, lr)
+
+ /* Check if vfork syscall is known at all. */
+ ldr a2, =-ENOSYS
+ teq a1, a2
+ bne PLTJMP(C_SYMBOL_NAME(__syscall_error))
+#endif
+
+ /* If we don't have vfork, fork is close enough. */
+ swi __NR_fork
+ cmn a1, #4096
+ RETINSTR(movcc, pc, lr)
+ b PLTJMP(C_SYMBOL_NAME(__syscall_error))
+
+PSEUDO_END (__vfork)
+
+weak_alias (__vfork, vfork)
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