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| author | Ulrich Drepper <drepper@redhat.com> | 1998-07-27 17:54:21 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 1998-07-27 17:54:21 +0000 |
| commit | e3ec78f5a3d69b3a5ba3d4e3a3b9b1e50312cabf (patch) | |
| tree | 2bd413e865f644ffa624037fc356af48db25ec2a | |
| parent | f69a3b40ff134a8e5d7a522f7e9d58a04d6a2fd8 (diff) | |
| download | glibc-e3ec78f5a3d69b3a5ba3d4e3a3b9b1e50312cabf.tar.gz | |
Replace stub with real implementation.
| -rw-r--r-- | sysdeps/unix/sysv/linux/arm/clone.S | 36 |
1 files changed, 34 insertions, 2 deletions
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) |