3 files changed, 158 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/arm/brk.c b/sysdeps/unix/sysv/linux/arm/brk.c
new file mode 100644
index 0000000..560e5a8
--- /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 8125ebf..728d62f 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 0000000..9a53960
--- /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