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authorUlrich Drepper <drepper@redhat.com>1998-07-27 17:55:05 +0000
committerUlrich Drepper <drepper@redhat.com>1998-07-27 17:55:05 +0000
commit3f62b69af3f0f61299ac7bcbc7c3b35cbd16cf4a (patch)
tree325c502561495d94ab29442c1929afd08ac41686 /sysdeps
parent6730873037b6afad1504bb237399c343cce18451 (diff)
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Update.
1998-07-27 17:42  Ulrich Drepper  <drepper@cygnus.com>

	* nss/nss_files/files-parse.c (INT_FIELD): Use strtoul instead of
	strtol.
	(INT_FIELD_MAYBE_NULL): Likewise.

	* posix/globtest.c: Rewrite for extended test suite.
	* posix/globtest.sh: More tests.
	Patch by Brian Wellington <bwelling@anomaly.munge.com>.

	* stdlib/strtol.c: Don't redefine LONG_MAX, LONG_MIN, and ULONG_MAX.
	Use new macro.

	* sysdeps/generic/readv.c: Correct return type.
	* sysdeps/generic/writev.c: Likewise.

1998-07-24  Gordon Matzigkeit  <gord@fig.org>

	* argp/argp-help.c (_GNU_SOURCE): Define, to suck in
	program_invocation_name when compiling outside of glibc.

1998-07-26  Philip Blundell  <philb@gnu.org>

	* sysdeps/unix/sysv/linux/arm/siglist.c: New file; ARM tools don't
	like `@' in .type directives.

	* sysdeps/libm-ieee754/e_expf.c (__ieee754_expf): Check whether
	FE_TONEAREST exists for this platform before using it.
	* sysdeps/libm-ieee754/e_exp.c (__ieee754_exp): Likewise.

	* sysdeps/arm/dl-machine.h (elf_machine_rel): Delete redundant
	debugging code.  Correct handling of PC24 relocs.

	* elf/Makefile (ld-map): Only define if versioning is in use.

	* sysdeps/arm/fpu_control.h: Move to ...
	* sysdeps/arm/fpu/fpu_control.h: ... here.
	* sysdeps/generic/fpu_control.h: Made usable as a dummy
	implementation.

	* sysdeps/unix/sysv/linux/arm/brk.c: New file.

	* sysdeps/arm/machine-gmon.h: Improved profiling for ARM.
	* sysdeps/arm/sysdep.h (CALL_MCOUNT): Replace stub with real
	implementation.
	* sysdeps/unix/sysv/linux/arm/clone.S: Likewise.
	Based on patch from Scott Bambrough and Pat Beirne.

	* shlib-versions: Add appropriate definitions for ARM machines.

	* README.template: Mention that Linux/ARM with ELF works now.

1998-07-18  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makerules: Generate compilation rules for all object suffixes,
	not only those currently selected, for sources in the current or
	object directory.

1998-07-24  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* posix/fnmatch.c (fnmatch): Allow `/' in character class.  Don't
	match `/' in filename by a character class if requested.
	* posix/testfnm.c: Rewritten.
	* posix/testfnm.args: Removed.

1998-07-25  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* posix/annexc.c (limits_syms): Add missing symbols.
	(stdarg_syms): Move va_list to `maybe' list.
	(stdio_syms): Add FOPEN_MAX.
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/arm/dl-machine.h36
-rw-r--r--sysdeps/arm/fpu/fpu_control.h (renamed from sysdeps/arm/fpu_control.h)0
-rw-r--r--sysdeps/arm/machine-gmon.h42
-rw-r--r--sysdeps/arm/sysdep.h8
-rw-r--r--sysdeps/generic/fpu_control.h8
-rw-r--r--sysdeps/generic/readv.c4
-rw-r--r--sysdeps/generic/writev.c4
-rw-r--r--sysdeps/libm-ieee754/e_exp.c2
-rw-r--r--sysdeps/libm-ieee754/e_expf.c2
-rw-r--r--sysdeps/unix/sysv/linux/arm/brk.c49
-rw-r--r--sysdeps/unix/sysv/linux/arm/clone.S36
-rw-r--r--sysdeps/unix/sysv/linux/arm/siglist.c75
12 files changed, 206 insertions, 60 deletions
diff --git a/sysdeps/arm/dl-machine.h b/sysdeps/arm/dl-machine.h
index 7612285907..912f7863fb 100644
--- a/sysdeps/arm/dl-machine.h
+++ b/sysdeps/arm/dl-machine.h
@@ -398,35 +398,6 @@ elf_machine_rel (struct link_map *map, const Elf32_Rel *reloc,
 	  break;
 	case R_ARM_GLOB_DAT:
 	case R_ARM_JUMP_SLOT:
-
-#if 0
-#define _HEX(i) for (j=28; j>=0; j-=4) b[7-j/4]="0123456789abcdef"[((int)i>>j)&15];
-{
-char b[10];
-int j;
-_HEX(map->l_addr);
-__asm__ (" mov r0, #2; mov r1, %0; mov r2, #9; swi 0x00900004; "
-	: : "r"(b) : "r0", "r1", "r2" );
-_HEX(sym->st_size);
-__asm__ (" mov r0, #2; mov r1, %0; mov r2, #9; swi 0x00900004; "
-	: : "r"(b) : "r0", "r1", "r2" );
-_HEX(&sym->st_value);
-__asm__ (" mov r0, #2; mov r1, %0; mov r2, #9; swi 0x00900004; "
-	: : "r"(b) : "r0", "r1", "r2" );
-_HEX(sym->st_value);
-__asm__ (" mov r0, #2; mov r1, %0; mov r2, #9; swi 0x00900004; "
-	: : "r"(b) : "r0", "r1", "r2" );
-_HEX(sym);
-__asm__ (" mov r0, #2; mov r1, %0; mov r2, #9; swi 0x00900004; "
-	: : "r"(b) : "r0", "r1", "r2" );
-_HEX(reloc_addr);
-__asm__ (" mov r0, #2; mov r1, %0; mov r2, #9; swi 0x00900004; "
-	: : "r"(b) : "r0", "r1", "r2" );
-b[0]=' '; b[1]='\n';
-__asm__ (" mov r0, #2; mov r1, %0; mov r2, #2; swi 0x00900004; "
-	: : "r"(b) : "r0", "r1", "r2" );
-}
-#endif
 	  *reloc_addr = value;
 	  break;
 	case R_ARM_ABS32:
@@ -451,7 +422,12 @@ __asm__ (" mov r0, #2; mov r1, %0; mov r2, #2; swi 0x00900004; "
 	    break;
 	  }
 	case R_ARM_PC24:
-	  *reloc_addr += (value - (Elf32_Addr) reloc_addr);
+	  {
+	    long int disp = (value - (Elf32_Addr) reloc_addr) / 4;
+	    if ((disp >= (1<<24)) || (disp <= -(1<<24)))
+	      assert (! "address out of range for PC24 reloc");
+	    *reloc_addr += disp;
+	  }
 	  break;
 	default:
 	  assert (! "unexpected dynamic reloc type");
diff --git a/sysdeps/arm/fpu_control.h b/sysdeps/arm/fpu/fpu_control.h
index 8a2d338c49..8a2d338c49 100644
--- a/sysdeps/arm/fpu_control.h
+++ b/sysdeps/arm/fpu/fpu_control.h
diff --git a/sysdeps/arm/machine-gmon.h b/sysdeps/arm/machine-gmon.h
index 27643df884..96b4c13c72 100644
--- a/sysdeps/arm/machine-gmon.h
+++ b/sysdeps/arm/machine-gmon.h
@@ -1,5 +1,5 @@
 /* Machine-dependent definitions for profiling support.  ARM version.
-   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997, 1998 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
@@ -37,19 +37,29 @@ static void mcount_internal (u_long frompc, u_long selfpc);
 #define _MCOUNT_DECL(frompc, selfpc) \
 static void mcount_internal (u_long frompc, u_long selfpc)
 
-#define MCOUNT \
-void _mcount (void)							      \
-{									      \
-  register unsigned long int frompc, selfpc;				      \
-  __asm__("movs fp, fp; "						      \
-          "moveq %0, $0; "						      \
-	  "ldrne %0, [fp, $-4]; "					      \
-	  "ldrne %1, [fp, $-12]; "					      \
-	  "movnes %1, %1; "						      \
-	  "ldrne %1, [%1, $-4]; "					      \
-	  : "=g" (selfpc), "=g" (frompc)				      \
-	  : : "cc"							      \
-	  );								      \
-  if (selfpc)								      \
-    mcount_internal(frompc, selfpc);					      \
+/* This macro/func MUST save r0, r1 because the compiler inserts
+	blind calls to _mount(), ignoring the fact that _mcount may
+	clobber registers; therefore, _mcount may NOT clobber registers */
+/* if (this_fp!=0) {
+	r0 = this_lr
+	r1 = this_fp
+  	r1 = [r1-4] which is caller's fp
+	if (r1!=0) 
+		r1 = caller's lr
+	call mcount_internal(this_lr, caller's_lr)
+   }
+*/  
+#define MCOUNT								\
+void _mcount (void)							\
+{									\
+  __asm__("stmdb	sp!, {r0, r1, r2, r3};"				\
+	  "movs		fp, fp;"				      	\
+	  "moveq	r0, #0;"					\
+	  "ldrne	r0, [fp, $-4];"					\
+	  "ldrne	r1, [fp, $-12];"				\
+	  "movnes	r1, r1;"					\
+	  "ldrne	r1, [r1, $-4];"					\
+	  "movs		r1, r1;"					\
+	  "blne		mcount_internal;"				\
+	  "ldmia	sp!, {r0, r1, r2, r3}");			\
 }
diff --git a/sysdeps/arm/sysdep.h b/sysdeps/arm/sysdep.h
index 4fc90aeed0..13d34c741b 100644
--- a/sysdeps/arm/sysdep.h
+++ b/sysdeps/arm/sysdep.h
@@ -73,10 +73,10 @@
 
 /* If compiled for profiling, call `mcount' at the start of each function.  */
 #ifdef	PROF
-/* The mcount code relies on a normal frame pointer being on the stack
-   to locate our caller, so push one just for its benefit.  */
-#define CALL_MCOUNT \
-#error Profiling not supported.
+#define CALL_MCOUNT			\
+	str	lr,[sp, #-4]!		\
+	bl	PLTJMP(mcount)		\
+	ldr	lr, [sp], #4
 #else
 #define CALL_MCOUNT		/* Do nothing.  */
 #endif
diff --git a/sysdeps/generic/fpu_control.h b/sysdeps/generic/fpu_control.h
index e91638d008..4d3d978426 100644
--- a/sysdeps/generic/fpu_control.h
+++ b/sysdeps/generic/fpu_control.h
@@ -20,18 +20,18 @@
 #ifndef _FPU_CONTROL_H
 #define _FPU_CONTROL_H
 
-#define _FPU_RESERVED ???	/* These bits are reserved are not changed.  */
+#define _FPU_RESERVED 0xffffffff    /* These bits are reserved and not changed.  */
 
 /* The fdlibm code requires no interrupts for exceptions.  Don't
    change the rounding mode, it would break long double I/O!  */
 #define _FPU_DEFAULT  0x00000000 /* Default value.  */
 
 /* Type of the control word.  */
-typedef unsigned int fpu_control_t __attribute__ ((__mode__ (__?I__)));
+typedef unsigned int fpu_control_t;
 
 /* Macros for accessing the hardware control word.  */
-#define _FPU_GETCW(cw) __asm__ ("fetch fpu control word into %0" : "=g" (cw))
-#define _FPU_SETCW(cw) __asm__ ("set fpu control word to %0" : : "g" (cw))
+#define _FPU_GETCW(cw) 0
+#define _FPU_SETCW(cw) do { } while (0)
 
 /* Default control word set at startup.  */
 extern fpu_control_t __fpu_control;
diff --git a/sysdeps/generic/readv.c b/sysdeps/generic/readv.c
index b210d53552..6be63d9ef3 100644
--- a/sysdeps/generic/readv.c
+++ b/sysdeps/generic/readv.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1995, 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1995, 1996, 1997, 1998 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
@@ -25,7 +25,7 @@
    The buffers are filled in the order specified.
    Operates just like `read' (see <unistd.h>) except that data are
    put in VECTOR instead of a contiguous buffer.  */
-int
+ssize_t
 __readv (fd, vector, count)
      int fd;
      const struct iovec *vector;
diff --git a/sysdeps/generic/writev.c b/sysdeps/generic/writev.c
index fc6bc20095..b53851493d 100644
--- a/sysdeps/generic/writev.c
+++ b/sysdeps/generic/writev.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1995, 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1995, 1996, 1997, 1998 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
@@ -25,7 +25,7 @@
    The data is written in the order specified.
    Operates just like `write' (see <unistd.h>) except that the data
    are taken from VECTOR instead of a contiguous buffer.  */
-int
+ssize_t
 __writev (fd, vector, count)
      int fd;
      const struct iovec *vector;
diff --git a/sysdeps/libm-ieee754/e_exp.c b/sysdeps/libm-ieee754/e_exp.c
index 5eae12a19c..ee0b22f6ae 100644
--- a/sysdeps/libm-ieee754/e_exp.c
+++ b/sysdeps/libm-ieee754/e_exp.c
@@ -91,7 +91,9 @@ __ieee754_exp (double x)
       fenv_t oldenv;
 
       feholdexcept (&oldenv);
+#ifdef FE_TONEAREST
       fesetround (FE_TONEAREST);
+#endif
 
       /* Calculate n.  */
       n = x * M_1_LN2 + THREEp51;
diff --git a/sysdeps/libm-ieee754/e_expf.c b/sysdeps/libm-ieee754/e_expf.c
index ff6357bd1d..e8a9c9d874 100644
--- a/sysdeps/libm-ieee754/e_expf.c
+++ b/sysdeps/libm-ieee754/e_expf.c
@@ -87,7 +87,9 @@ __ieee754_expf (float x)
       fenv_t oldenv;
 
       feholdexcept (&oldenv);
+#ifdef FE_TONEAREST
       fesetround (FE_TONEAREST);
+#endif
 
       /* Calculate n.  */
       n = x * M_1_LN2 + THREEp22;
diff --git a/sysdeps/unix/sysv/linux/arm/brk.c b/sysdeps/unix/sysv/linux/arm/brk.c
new file mode 100644
index 0000000000..560e5a8337
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arm/brk.c
@@ -0,0 +1,49 @@
+/* brk system call for Linux/ARM.
+   Copyright (C) 1995, 1996 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 <errno.h>
+#include <unistd.h>
+#include <sysdep.h>
+
+/* This must be initialized data because commons can't have aliases.  */
+void *__curbrk = 0;
+
+int
+__brk (void *addr)
+{
+  void *newbrk;
+
+  asm ("mov a1, %1\n"	/* save the argment in r0 */
+       "swi %2\n"	/* do the system call */
+       "mov %0, a1;"	/* keep the return value */
+       : "=r"(newbrk) 
+       : "r"(addr), "i" (SYS_ify (brk))
+       : "a1");
+
+  __curbrk = newbrk;
+
+  if (newbrk < addr)
+    {
+      __set_errno (ENOMEM);
+      return -1;
+    }
+
+  return 0;
+}
+weak_alias (__brk, brk)
diff --git a/sysdeps/unix/sysv/linux/arm/clone.S b/sysdeps/unix/sysv/linux/arm/clone.S
index 8125ebff20..728d62f3e3 100644
--- a/sysdeps/unix/sysv/linux/arm/clone.S
+++ b/sysdeps/unix/sysv/linux/arm/clone.S
@@ -1,5 +1,6 @@
-/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
+   Contributed by Pat Beirne <patb@corelcomputer.com>
 
    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
@@ -27,7 +28,38 @@
 
         .text
 ENTRY(__clone)
-	/* Somebody needs to write this.  */
+	@ sanity check args
+	cmp	r0, #0
+	cmpne	r1, #0
+	moveq	r0, #-EINVAL
+	beq	PLTJMP(syscall_error)
+
+	@ insert the args onto the new stack
+	sub	r1, r1, #8
+	str	r3, [r1, #4]
+	@ save the function pointer as the 0th element
+	str	r0, [r1]
+
+	@ do the system call
+	@ get flags 
+	mov	r0, r2
+	@ new sp is already in r1
+	swi	SYS_ify(clone)
+	cmp	r0, #0
+	blt	PLTJMP(syscall_error)
+	beq	thread_start
+	@ else, thread was launched...
+	mov	pc, lr
+
+thread_start:
+	@ pick the function arg and call address off the stack and execute
+	ldr	r0, [sp, #4]
+	mov	lr, pc
+	ldr 	pc, [sp]
+
+	@ and we are done, passing the return value through r0
+	bl	PLTJMP(_exit)
+
 PSEUDO_END (__clone)
 
 weak_alias (__clone, clone)
diff --git a/sysdeps/unix/sysv/linux/arm/siglist.c b/sysdeps/unix/sysv/linux/arm/siglist.c
new file mode 100644
index 0000000000..9a539604ff
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arm/siglist.c
@@ -0,0 +1,75 @@
+/* Copyright (C) 1997, 1998 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 <stddef.h>
+#include <signal.h>
+#include <sizes.h>
+
+#if defined HAVE_ELF && defined PIC && defined DO_VERSIONING
+# define SYS_SIGLIST	__new_sys_siglist
+# define SYS_SIGABBREV	__new_sys_sigabbrev
+#else
+# define SYS_SIGLIST	_sys_siglist
+# define SYS_SIGABBREV	_sys_sigabbrev
+#endif
+
+#if defined HAVE_ELF && defined PIC && defined DO_VERSIONING
+asm (".data; .globl __old_sys_siglist;  __old_sys_siglist:");
+#endif
+
+const char *const SYS_SIGLIST[NSIG] =
+{
+#define init_sig(sig, abbrev, desc)   [sig] desc,
+#include "siglist.h"
+#undef init_sig
+};
+
+#if defined HAVE_ELF && defined PIC && defined DO_VERSIONING
+asm (".type __old_sys_siglist,%object;.size __old_sys_siglist,"
+        OLD_SIGLIST_SIZE_STR "*" PTR_SIZE_STR);
+
+asm (".data; .globl __old_sys_sigabbrev;  __old_sys_sigabbrev:");
+#endif
+
+const char *const SYS_SIGABBREV[NSIG] =
+{
+#define init_sig(sig, abbrev, desc)   [sig] abbrev,
+#include "siglist.h"
+#undef init_sig
+};
+
+#if defined HAVE_ELF && defined PIC && defined DO_VERSIONING
+asm (".type __old_sys_sigabbrev,%object;.size __old_sys_sigabbrev,"
+        OLD_SIGLIST_SIZE_STR "*" PTR_SIZE_STR);
+
+extern const char *const *__old_sys_siglist;
+extern const char *const *__old_sys_sigabbrev;
+
+strong_alias (__old_sys_siglist, _old_sys_siglist)
+symbol_version (__old_sys_siglist, _sys_siglist, GLIBC_2.0);
+symbol_version (_old_sys_siglist, sys_siglist, GLIBC_2.0);
+symbol_version (__old_sys_sigabbrev, sys_sigabbrev, GLIBC_2.0);
+
+strong_alias (__new_sys_siglist, _new_sys_siglist)
+default_symbol_version (__new_sys_siglist, _sys_siglist, GLIBC_2.1);
+default_symbol_version (_new_sys_siglist, sys_siglist, GLIBC_2.1);
+default_symbol_version (__new_sys_sigabbrev, sys_sigabbrev, GLIBC_2.1);
+#else
+weak_alias (_sys_siglist, sys_siglist)
+weak_alias (_sys_sigabbrev, sys_sigabbrev)
+#endif