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author | Andreas Jaeger <aj@suse.de> | 2005-03-28 09:26:46 +0000 |
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committer | Andreas Jaeger <aj@suse.de> | 2005-03-28 09:26:46 +0000 |
commit | f850220be60d259b62f1f5c5d8b568c105c4ecf2 (patch) | |
tree | a339b223ea2c0ef1be9c757a1c90adf0dd795a63 /sysdeps/unix/sysv/linux/mips/vfork.S | |
parent | abc85e9fea35a8e2eedfc9796c8d81ae5364bcf7 (diff) | |
download | glibc-f850220be60d259b62f1f5c5d8b568c105c4ecf2.tar.gz glibc-f850220be60d259b62f1f5c5d8b568c105c4ecf2.tar.xz glibc-f850220be60d259b62f1f5c5d8b568c105c4ecf2.zip |
Update.
* sysdeps/mips/atomicity.h: Remove unused file. * sysdeps/mips/dl-machine.h (elf_machine_rel): Add TLS relocations. * sysdeps/mips/dl-tls.h: New file. * sysdeps/mips/libc-tls.c: New file. * sysdeps/mips/tls-macros.h: New file. * sysdeps/mips/bits/atomic.h: New file. * sysdeps/mips/bits/setjmp.h: Protect against multiple inclusion. * sysdeps/mips/elf/configure.in: New file. * sysdeps/mips/elf/configure: Generated. * sysdeps/mips/sys/asm.h: New file. * sysdeps/unix/sysv/linux/mips/vfork.S: New file. * sysdeps/unix/sysv/linux/mips/clone.S: Add NPTL and five-argument clone support. * sysdeps/unix/sysv/linux/mips/mips32/sysdep.h (INTERNAL_SYSCALL_NCS): New. (INTERNAL_SYSCALL): Update for non-constant support. (internal_syscall0): Likewise. (internal_syscall1): Likewise. (internal_syscall2): Likewise. (internal_syscall3): Likewise. (internal_syscall4): Likewise. (internal_syscall5): Likewise. (internal_syscall6): Likewise. (internal_syscall7): Likewise. * sysdeps/unix/sysv/linux/mips/bits/siginfo.h (SIGEV_THREAD): Update to match the kernel. (SIGEV_CALLBACK): Likewise. (SIGEV_THREAD_ID): Likewise. 2005-03-28 Daniel Jacobowitz <dan@codesourcery.com>
Diffstat (limited to 'sysdeps/unix/sysv/linux/mips/vfork.S')
-rw-r--r-- | sysdeps/unix/sysv/linux/mips/vfork.S | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/mips/vfork.S b/sysdeps/unix/sysv/linux/mips/vfork.S new file mode 100644 index 0000000000..1383ddc6a7 --- /dev/null +++ b/sysdeps/unix/sysv/linux/mips/vfork.S @@ -0,0 +1,98 @@ +/* Copyright (C) 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* vfork() is just a special case of clone(). */ + +#include <sys/asm.h> +#include <sysdep.h> +#include <asm/unistd.h> +#include <sgidefs.h> + +#ifndef SAVE_PID +#define SAVE_PID +#endif + +#ifndef RESTORE_PID +#define RESTORE_PID +#endif + + +/* int vfork() */ + + .text +LOCALSZ= 1 +FRAMESZ= (((NARGSAVE+LOCALSZ)*SZREG)+ALSZ)&ALMASK +GPOFF= FRAMESZ-(1*SZREG) +NESTED(__vfork,FRAMESZ,sp) +#ifdef __PIC__ + SETUP_GP +#endif + PTR_SUBU sp, FRAMESZ + SETUP_GP64 (a5, __vfork) +#ifdef __PIC__ + SAVE_GP (GPOFF) +#endif +#ifdef PROF +# if (_MIPS_SIM != _ABIO32) + PTR_S a5, GPOFF(sp) +# endif + .set noat + move $1, ra +# if (_MIPS_SIM == _ABIO32) + subu sp,sp,8 +# endif + jal _mcount + .set at +# if (_MIPS_SIM != _ABIO32) + PTR_L a5, GPOFF(sp) +# endif +#endif + + PTR_ADDU sp, FRAMESZ + + SAVE_PID + + li a0, 0x4112 /* CLONE_VM | CLONE_VFORK | SIGCHLD */ + move a1, sp + + /* Do the system call */ + li v0,__NR_clone + syscall + + RESTORE_PID + + bnez a3,L(error) + + /* Successful return from the parent or child. */ + RESTORE_GP64 + ret + + /* Something bad happened -- no child created. */ +L(error): +#ifdef __PIC__ + PTR_LA t9, __syscall_error + RESTORE_GP64 + jr t9 +#else + RESTORE_GP64 + j __syscall_error +#endif + END(__vfork) + +libc_hidden_def(__vfork) +weak_alias(__vfork, vfork) |