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author | Ulrich Drepper <drepper@redhat.com> | 2000-06-12 20:50:37 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2000-06-12 20:50:37 +0000 |
commit | 3846ef75cf3309e2e8264c81fb510cdd54bee4fd (patch) | |
tree | 45ad5244c5af4a690d56f41da4ee36d864bc4242 /sysdeps/unix/sysv/linux/sh/clone.S | |
parent | 55985355ade2a038b567dd9b58153a98384ae703 (diff) | |
download | glibc-3846ef75cf3309e2e8264c81fb510cdd54bee4fd.tar.gz glibc-3846ef75cf3309e2e8264c81fb510cdd54bee4fd.tar.xz glibc-3846ef75cf3309e2e8264c81fb510cdd54bee4fd.zip |
Update.
2000-06-12 Kazumoto Kojima <kkojima@rr.iij4u.or.jp> Yutaka Niibe <gniibe@chroot.org> * sysdeps/sh/Dist: New file. * sysdeps/sh/Implies: New file. * sysdeps/sh/gmp-mparam.h: New file. * sysdeps/sh/init-first.c: New file. * sysdeps/sh/machine-gmon.h: New file. * sysdeps/sh/memcpy.S: New file. * sysdeps/sh/memprof.h: New file. * sysdeps/sh/memset.S: New file. * sysdeps/sh/sh3/__longjmp.S: New file. * sysdeps/sh/sh3/bits/endian.h: New file. * sysdeps/sh/sh3/bits/huge_val.h: New file. * sysdeps/sh/sh3/bits/setjmp.h: New file. * sysdeps/sh/sh3/bsd-_setjmp.S: New file. * sysdeps/sh/sh3/bsd-setjmp.S: New file. * sysdeps/sh/sh3/dl-machine.h: New file. * sysdeps/sh/sh3/elf/initfini.c: New file. * sysdeps/sh/sh3/elf/start.S: New file. * sysdeps/sh/sh3/setjmp.S: New file. * sysdeps/sh/sh3/sys/ucontext.h: New file. * sysdeps/sh/sh4/__longjmp.S: New file. * sysdeps/sh/sh4/bits/endian.h: New file. * sysdeps/sh/sh4/bits/huge_val.h: New file. * sysdeps/sh/sh4/bits/setjmp.h: New file. * sysdeps/sh/sh4/bsd-_setjmp.S: New file. * sysdeps/sh/sh4/bsd-setjmp.S: New file. * sysdeps/sh/sh4/dl-machine.h: New file. * sysdeps/sh/sh4/elf/initfini.c: New file. * sysdeps/sh/sh4/elf/start.S: New file. * sysdeps/sh/sh4/fpu/bits/fenv.h: New file. * sysdeps/sh/sh4/fpu/bits/huge_val.h: New file. * sysdeps/sh/sh4/fpu/bits/mathdef.h: New file. * sysdeps/sh/sh4/fpu/fclrexcpt.c: New file. * sysdeps/sh/sh4/fpu/fegetenv.c: New file. * sysdeps/sh/sh4/fpu/fegetround.c: New file. * sysdeps/sh/sh4/fpu/feholdexcpt.c: New file. * sysdeps/sh/sh4/fpu/fesetenv.c: New file. * sysdeps/sh/sh4/fpu/fesetround.c: New file. * sysdeps/sh/sh4/fpu/fpu_control.h: New file. * sysdeps/sh/sh4/fpu/fraiseexcpt.c: New file. * sysdeps/sh/sh4/fpu/fsetexcptflg.c: New file. * sysdeps/sh/sh4/fpu/ftestexcept.c: New file. * sysdeps/sh/sh4/fpu/libm-test-ulps: New file. * sysdeps/sh/sh4/setjmp.S: New file. * sysdeps/sh/sh4/sys/ucontext.h: New file. * sysdeps/sh/strlen.S: New file. * sysdeps/sh/sysdep.h: New file. * sysdeps/unix/sh/sysdep.S: New file. * sysdeps/unix/sh/sysdep.h: New file. * sysdeps/unix/sysv/linux/sh/Dist: New file. * sysdeps/unix/sysv/linux/sh/Makefile: New file. * sysdeps/unix/sysv/linux/sh/Versions: New file. * sysdeps/unix/sysv/linux/sh/bits/mman.h: New file. * sysdeps/unix/sysv/linux/sh/bits/resource.h: New file. * sysdeps/unix/sysv/linux/sh/brk.c: New file. * sysdeps/unix/sysv/linux/sh/chown.c: New file. * sysdeps/unix/sysv/linux/sh/clone.S: New file. * sysdeps/unix/sysv/linux/sh/fchown.c: New file. * sysdeps/unix/sysv/linux/sh/fxstat.c: New file. * sysdeps/unix/sysv/linux/sh/getegid.c: New file. * sysdeps/unix/sysv/linux/sh/geteuid.c: New file. * sysdeps/unix/sysv/linux/sh/getgroups.c: New file. * sysdeps/unix/sysv/linux/sh/getresgid.c: New file. * sysdeps/unix/sysv/linux/sh/getresuid.c: New file. * sysdeps/unix/sysv/linux/sh/getrlimit.c: New file. * sysdeps/unix/sysv/linux/sh/getrlimit64.c: New file. * sysdeps/unix/sysv/linux/sh/getuid.c: New file. * sysdeps/unix/sysv/linux/sh/lchown.c: New file. * sysdeps/unix/sysv/linux/sh/lxstat.c: New file. * sysdeps/unix/sysv/linux/sh/msgctl.c: New file. * sysdeps/unix/sysv/linux/sh/oldgetrlimit64.c: New file. * sysdeps/unix/sysv/linux/sh/pipe.S: New file. * sysdeps/unix/sysv/linux/sh/profil-counter.h: New file. * sysdeps/unix/sysv/linux/sh/semctl.c: New file. * sysdeps/unix/sysv/linux/sh/setegid.c: New file. * sysdeps/unix/sysv/linux/sh/seteuid.c: New file. * sysdeps/unix/sysv/linux/sh/setfsgid.c: New file. * sysdeps/unix/sysv/linux/sh/setfsuid.c: New file. * sysdeps/unix/sysv/linux/sh/setgid.c: New file. * sysdeps/unix/sysv/linux/sh/setgroups.c: New file. * sysdeps/unix/sysv/linux/sh/setregid.c: New file. * sysdeps/unix/sysv/linux/sh/setresgid.c: New file. * sysdeps/unix/sysv/linux/sh/setresuid.c: New file. * sysdeps/unix/sysv/linux/sh/setreuid.c: New file. * sysdeps/unix/sysv/linux/sh/setrlimit.c: New file. * sysdeps/unix/sysv/linux/sh/setuid.c: New file. * sysdeps/unix/sysv/linux/sh/sh3/register-dump.h: New file. * sysdeps/unix/sysv/linux/sh/sh4/register-dump.h: New file. * sysdeps/unix/sysv/linux/sh/shmctl.c: New file. * sysdeps/unix/sysv/linux/sh/sigcontextinfo.h: New file. * sysdeps/unix/sysv/linux/sh/socket.S: New file. * sysdeps/unix/sysv/linux/sh/sys/io.h: New file. * sysdeps/unix/sysv/linux/sh/sys/ucontext.h: New file. * sysdeps/unix/sysv/linux/sh/sys/user.h: New file. * sysdeps/unix/sysv/linux/sh/syscalls.list: New file. * sysdeps/unix/sysv/linux/sh/sysdep.S: New file. * sysdeps/unix/sysv/linux/sh/sysdep.h: New file. * sysdeps/unix/sysv/linux/sh/vfork.S: New file. * sysdeps/unix/sysv/linux/sh/xstat.c: New file.
Diffstat (limited to 'sysdeps/unix/sysv/linux/sh/clone.S')
-rw-r--r-- | sysdeps/unix/sysv/linux/sh/clone.S | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/sh/clone.S b/sysdeps/unix/sysv/linux/sh/clone.S new file mode 100644 index 0000000000..e181850be3 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sh/clone.S @@ -0,0 +1,133 @@ +/* Copyright (C) 1999, 2000 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. */ + +/* clone() is even more special than fork() as it mucks with stacks + and invokes a function in the right context after its all over. */ + +#include <sysdep.h> +#define _ERRNO_H 1 +#include <bits/errno.h> + +/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */ + + .text +ENTRY(__clone) + /* sanity check arguments. */ + tst r4, r4 + bf/s 1f + tst r5, r5 + bf/s 1f + mov.l .L1, r1 +#ifdef SHARED + mov.l r12, @-r15 + sts.l pr, @-r15 + mov.l .LG, r12 + mova .LG, r0 + add r0, r12 + mova .L1, r0 + add r0, r1 + jsr @r1 + mov #-EINVAL, r4 + lds.l @r15+, pr + rts + mov.l @r15+, r12 +#else + jmp @r1 + mov #-EINVAL, r4 +#endif + .align 2 +.L1: + .long PLTJMP(C_SYMBOL_NAME(__syscall_error)) +1: + /* insert the args onto the new stack */ + mov.l r7, @-r5 + /* save the function pointer as the 0th element */ + mov.l r4, @-r5 + + /* do the system call */ + mov r6, r4 + mov #+SYS_ify(clone), r0 + trapa #0 + mov r0, r1 + mov #-12, r2 + shad r2, r1 + not r1, r1 // r1=0 means r0 = -1 to -4095 + tst r1, r1 // i.e. error in linux + bf 2f + mov.l .L2, r1 +#ifdef SHARED + mov r0, r4 + mov.l r12, @-r15 + sts.l pr, @-r15 + mov.l .LG, r12 + mova .LG, r0 + add r0, r12 + mova .L2, r0 + add r0, r1 + jsr @r1 + nop + lds.l @r15+, pr + rts + mov.l @r15+, r12 +#else + jmp @r1 + mov r0, r4 +#endif + .align 2 +.L2: + .long PLTJMP(C_SYMBOL_NAME(__syscall_error)) + +2: + tst r0, r0 + bt 3f + rts + nop +3: + /* thread starts */ + mov.l @r15, r1 + jsr @r1 + mov.l @(4,r15), r4 + + /* we are done, passing the return value through r0 */ + mov.l .L3, r1 +#ifdef SHARED + mov.l r12, @-r15 + sts.l pr, @-r15 + mov r0, r4 + mova .LG, r0 + mov.l .LG, r12 + add r0, r12 + mova .L3, r0 + add r0, r1 + jsr @r1 + nop + lds.l @r15+, pr + rts + mov.l @r15+, r12 +#else + jmp @r1 + mov r0, r4 +#endif + .align 2 +.LG: + .long _GLOBAL_OFFSET_TABLE_ +.L3: + .long PLTJMP(C_SYMBOL_NAME(_exit)) +PSEUDO_END (__clone) + +weak_alias (__clone, clone) |