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-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc32/clone.S22
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/clone.S53
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/pause.c48
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h45
4 files changed, 148 insertions, 20 deletions
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S b/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
index 66cdbf3ca7..4d8fdb8200 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
@@ -40,11 +40,19 @@ __clone:
save %sp,-96,%sp
/* sanity check arguments */
- tst %i0
+ orcc %i0,%g0,%g2
be .Lerror
orcc %i1,%g0,%o1
be .Lerror
mov %i2,%o0
+
+ /* The child_stack is the top of the stack, allocate one
+ whole stack frame from that as this is what the kernel
+ expects. */
+ sub %o1, 96, %o1
+ mov %i3, %g3
+ mov %i2, %g4
+
/* ptid */
mov %i4,%o2
/* tls */
@@ -76,19 +84,21 @@ __clone:
__thread_start:
#ifdef RESET_PID
sethi %hi(CLONE_THREAD), %l0
- andcc %i2, %l0, %g0
+ andcc %g4, %l0, %g0
bne 1f
- andcc %i2, CLONE_VM, %g0
+ andcc %g4, CLONE_VM, %g0
bne,a 2f
mov -1,%o0
set __NR_getpid,%g1
ta 0x10
-2: st %o0,[%g7 + PID]
+2:
+ st %o0,[%g7 + PID]
st %o0,[%g7 + TID]
1:
#endif
- call %i0
- mov %i3,%o0
+ mov %g0, %fp /* terminate backtrace */
+ call %g2
+ mov %g3,%o0
call _exit,0
nop
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S b/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
index a7c248b2e8..f6134599e2 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
@@ -22,8 +22,16 @@
#include <asm/errno.h>
#include <asm/unistd.h>
+#include <tcb-offsets.h>
-/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */
+#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); */
+
+ .register %g2,#scratch
+ .register %g3,#scratch
.text
.align 4
@@ -34,22 +42,31 @@ __clone:
save %sp, -192, %sp
/* sanity check arguments */
- brz,pn %i0, 99f
- mov %i0, %l0 /* save fn */
- brz,pn %i1, 99f
- mov %i3, %l3 /* save arg */
+ brz,pn %i0, 99f /* fn non-NULL? */
+ mov %i0, %g2
+ brz,pn %i1, 99f /* child_stack non-NULL? */
+ mov %i2, %o0 /* clone flags */
+
+ /* The child_stack is the top of the stack, allocate one
+ whole stack frame from that as this is what the kernel
+ expects. Also, subtract STACK_BIAS. */
+ sub %i1, 192 + 0x7ff, %o1
+ mov %i3, %g3
+ mov %i2, %g4
+
+ mov %i4,%o2 /* PTID */
+ mov %i5,%o3 /* TLS */
+ ldx [%fp+0x7ff+176],%o4 /* CTID */
/* Do the system call */
- sub %i1, 0x7ff, %o1
- mov %i2, %o0
set __NR_clone, %g1
ta 0x6d
bcs,pn %xcc, 99f
nop
brnz,pn %o1, __thread_start
- mov %o0, %i0
+ nop
ret
- restore
+ restore %o0, %g0, %o0
99:
#ifndef _LIBC_REENTRANT
#ifdef PIC
@@ -77,10 +94,22 @@ __clone:
.type __thread_start,@function
__thread_start:
+#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 */
- sub %sp, 6*8, %sp /* provide arg storage */
- call %l0
- mov %l3,%o0
+ call %g2
+ mov %g3,%o0
call _exit,0
nop
.size __thread_start, .-__thread_start
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/pause.c b/sysdeps/unix/sysv/linux/sparc/sparc64/pause.c
index 2ec5bd39ad..40fab28d47 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/pause.c
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/pause.c
@@ -1 +1,47 @@
-#include <sysdeps/posix/pause.c>
+/* pause -- suspend the process until a signal arrives. POSIX.1 version.
+ Copyright (C) 2003 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. */
+
+#include <errno.h>
+#include <signal.h>
+#include <unistd.h>
+#include <sysdep-cancel.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+#include <bp-checks.h>
+
+/* Suspend the process until a signal arrives.
+ This always returns -1 and sets errno to EINTR. */
+int
+__libc_pause (void)
+{
+ sigset_t set;
+
+ __sigemptyset (&set);
+ INLINE_SYSCALL (rt_sigprocmask, 4, SIG_BLOCK, CHECK_SIGSET (NULL),
+ CHECK_SIGSET_NULL_OK (&set), _NSIG / 8);
+
+ /* pause is a cancellation point, but so is sigsuspend.
+ So no need for anything special here. */
+
+ return __sigsuspend (&set);
+}
+weak_alias (__libc_pause, pause)
+
+LIBC_CANCEL_HANDLED (); /* sigsuspend handles our cancellation. */
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h b/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h
index 3c6492aeca..071aa3a310 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h
@@ -85,11 +85,54 @@ SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler) \
sethi %hi(_GLOBAL_OFFSET_TABLE_-4), %l7; \
call __sparc64.get_pic.l7; \
add %l7, %lo(_GLOBAL_OFFSET_TABLE_+4), %l7; \
- ldx [%l7 + rtld_errno], %l0; \
+ sethi %hi(rtld_errno), %g1; \
+ or %g1, %lo(rtld_errno), %g1; \
+ ldx [%l7 + %g1], %l0; \
st %i0, [%l0]; \
jmpl %i7+8, %g0; \
restore %g0, -1, %o0; \
.previous;
+#elif USE___THREAD
+# ifndef NOT_IN_libc
+# define SYSCALL_ERROR_ERRNO __libc_errno
+# else
+# define SYSCALL_ERROR_ERRNO errno
+# endif
+# ifdef SHARED
+# define SYSCALL_ERROR_HANDLER \
+ .section .gnu.linkonce.t.__sparc64.get_pic.l7,"ax",@progbits; \
+ .globl __sparc64.get_pic.l7; \
+ .hidden __sparc64.get_pic.l7; \
+ .type __sparc64.get_pic.l7,@function; \
+__sparc64.get_pic.l7: \
+ retl; \
+ add %o7, %l7, %l7; \
+ .previous; \
+SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler) \
+ save %sp,-192,%sp; \
+ sethi %tie_hi22(SYSCALL_ERROR_ERRNO), %l1; \
+ sethi %hi(_GLOBAL_OFFSET_TABLE_-4), %l7; \
+ call __sparc64.get_pic.l7; \
+ add %l7, %lo(_GLOBAL_OFFSET_TABLE_+4), %l7; \
+ add %l1, %tie_lo10(SYSCALL_ERROR_ERRNO), %l1; \
+ ldx [%l7 + %l1], %l1, %tie_ldx(SYSCALL_ERROR_ERRNO); \
+ st %i0, [%g7 + %l1], %tie_add(SYSCALL_ERROR_ERRNO); \
+ jmpl %i7+8, %g0; \
+ restore %g0, -1, %o0; \
+ .previous;
+# else
+# define SYSCALL_ERROR_HANDLER \
+SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler) \
+ sethi %tie_hi22(SYSCALL_ERROR_ERRNO), %g1; \
+ sethi %hi(_GLOBAL_OFFSET_TABLE_), %g2; \
+ add %g1, %tie_lo10(SYSCALL_ERROR_ERRNO), %g1; \
+ add %g2, %lo(_GLOBAL_OFFSET_TABLE_), %g2; \
+ ldx [%g2 + %g1], %g1, %tie_ldx(SYSCALL_ERROR_ERRNO); \
+ st %o0, [%g7 + %g1], %tie_add(SYSCALL_ERROR_ERRNO); \
+ jmpl %o7+8, %g0; \
+ mov -1, %o0; \
+ .previous;
+# endif
#else
# define SYSCALL_ERROR_HANDLER \
SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler) \
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-09 05:53:37 +0000