-/* Copyright (C) 1997, 2000, 2007 Free Software Foundation, Inc.
+/* Copyright (C) 1997-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson (rth@tamu.edu).
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. */
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
/* 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 <tcb-offsets.h>
#include <sysdep.h>
-#define CLONE_VM 0x00000100
-#define CLONE_THREAD 0x00010000
-
/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg,
pid_t *ptid, void *tls, pid_t *ctid); */
expects. Also, subtract STACK_BIAS. */
sub %i1, 192 + 0x7ff, %o1
mov %i3, %g3
- mov %i2, %g4
mov %i4,%o2 /* PTID */
mov %i5,%o3 /* TLS */
/* Do the system call */
set __NR_clone, %g1
ta 0x6d
- bcs,pn %xcc, 99f
+ bcs,pn %xcc, 98f
nop
brnz,pn %o1, __thread_start
nop
jmpl %i7 + 8, %g0
restore %o0, %g0, %o0
-99:
-#ifndef _LIBC_REENTRANT
-#ifdef PIC
- call 1f
- sethi %hi(_GLOBAL_OFFSET_TABLE_-(99b-.)), %l7
-1: or %l7, %lo(_GLOBAL_OFFSET_TABLE_-(99b-.)), %l7
- add %l7, %o7, %l7
- set EINVAL, %i0
- sethi %hi(errno), %g2
- or %g2, %lo(errno), %g2
- st %i0, [%l7+%g2]
-#else
- sethi %hi(errno), %g2
- set EINVAL, %i0
- st %i0, [%g2+%lo(errno)]
-#endif
-#else
- call HIDDEN_JUMPTARGET(__errno_location)
- nop
+99: mov EINVAL, %o0
+98: call HIDDEN_JUMPTARGET(__errno_location)
+ mov %o0, %i0
st %i0, [%o0]
-#endif
jmpl %i7 + 8, %g0
restore %g0,-1,%o0
END(__clone)
.type __thread_start,@function
__thread_start:
- cfi_startproc
-#ifdef RESET_PID
- sethi %hi(CLONE_THREAD), %l0
- andcc %g4, %l0, %g0
- bne,pt %icc, 1f
- andcc %g4, CLONE_VM, %g0
- bne,a,pn %icc, 2f
- mov -1,%o0
- set __NR_getpid,%g1
- ta 0x6d
-2: st %o0,[%g7 + PID]
- st %o0,[%g7 + TID]
-1:
-#endif
mov %g0, %fp /* terminate backtrace */
call %g2
mov %g3,%o0
- call HIDDEN_JUMPTARGET(_exit),0
+ set __NR_exit, %g1
+ ta 0x6d
nop
- cfi_endproc
.size __thread_start, .-__thread_start
+libc_hidden_def (__clone)
weak_alias (__clone, clone)