libpthread/nptl: core of the "Native Posix Threading Library" for uClibc

targetting arm,sh,i386,mips,sparc for now

Signed-off-by: Austin Foxley <austinf@cetoncorp.com>

4 files changed, 201 insertions, 0 deletions

diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S b/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
new file mode 100644
index 000000000..a6142aafe
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
@@ -0,0 +1,2 @@
+#define RESET_PID
+#include <libc/sysdeps/linux/sparc/clone.S>
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/pt-vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/pt-vfork.S
new file mode 100644
index 000000000..fb01242b5
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/pt-vfork.S
@@ -0,0 +1,45 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
+
+   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 <sysdep.h>
+#include <tcb-offsets.h>
+
+	.text
+	.globl		__syscall_error
+ENTRY(__vfork)
+	ld	[%g7 + PID], %o5
+	sub	%g0, %o5, %o4
+	st	%o4, [%g7 + PID]
+
+	LOADSYSCALL(vfork)
+	ta	0x10
+	bcc	2f
+	 mov	%o7, %g1
+	st	%o5, [%g7 + PID]
+	call	__syscall_error
+	 mov	%g1, %o7
+2:	sub	%o1, 1, %o1
+	andcc	%o0, %o1, %o0
+	bne,a	1f
+	 st	%o5, [%g7 + PID]
+1:	retl
+	 nop
+END(__vfork)
+
+weak_alias (__vfork, vfork)
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h
new file mode 100644
index 000000000..ad650d040
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h
@@ -0,0 +1,105 @@
+/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 2002.
+
+   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 <tls.h>
+#include <sysdep.h>
+#ifndef __ASSEMBLER__
+# include <pthreadP.h>
+#endif
+
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
+
+# undef PSEUDO
+# define PSEUDO(name, syscall_name, args)   \
+        .text;                  \
+    .globl      __syscall_error;    \
+ENTRY(name)                 \
+    ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1;\
+    cmp %g1, 0;             \
+    bne 1f;                 \
+.type   __##syscall_name##_nocancel,@function;  \
+.globl  __##syscall_name##_nocancel;        \
+__##syscall_name##_nocancel:            \
+     mov SYS_ify(syscall_name), %g1;    \
+    ta 0x10;                \
+    bcc 8f;                 \
+     mov %o7, %g1;              \
+    call __syscall_error;           \
+     mov %g1, %o7;              \
+8:  jmpl %o7 + 8, %g0;          \
+     nop;                   \
+.size   __##syscall_name##_nocancel,.-__##syscall_name##_nocancel;\
+1:  save %sp, -96, %sp;         \
+    cfi_def_cfa_register(%fp);      \
+    cfi_window_save;            \
+    cfi_register(%o7, %i7);         \
+    CENABLE;                \
+     nop;                   \
+    mov %o0, %l0;               \
+    COPY_ARGS_##args            \
+    mov SYS_ify(syscall_name), %g1;     \
+    ta 0x10;                \
+    bcc 1f;                 \
+     mov %o0, %l1;              \
+    CDISABLE;               \
+     mov %l0, %o0;              \
+    call __syscall_error;           \
+     mov %l1, %o0;              \
+    b 2f;                   \
+     mov -1, %l1;               \
+1:  CDISABLE;               \
+     mov %l0, %o0;              \
+2:  jmpl %i7 + 8, %g0;          \
+     restore %g0, %l1, %o0;
+
+# ifdef IS_IN_libpthread
+#  define CENABLE	call __pthread_enable_asynccancel
+#  define CDISABLE	call __pthread_disable_asynccancel
+# elif !defined NOT_IN_libc
+#  define CENABLE	call __libc_enable_asynccancel
+#  define CDISABLE	call __libc_disable_asynccancel
+# elif defined IS_IN_librt
+#  define CENABLE	call __librt_enable_asynccancel
+#  define CDISABLE	call __librt_disable_asynccancel
+# else
+#  error Unsupported library
+# endif
+
+#define COPY_ARGS_0	/* Nothing */
+#define COPY_ARGS_1	COPY_ARGS_0 mov %i0, %o0;
+#define COPY_ARGS_2	COPY_ARGS_1 mov %i1, %o1;
+#define COPY_ARGS_3	COPY_ARGS_2 mov %i2, %o2;
+#define COPY_ARGS_4	COPY_ARGS_3 mov %i3, %o3;
+#define COPY_ARGS_5	COPY_ARGS_4 mov %i4, %o4;
+#define COPY_ARGS_6	COPY_ARGS_5 mov %i5, %o5;
+
+# ifndef __ASSEMBLER__
+#  define SINGLE_THREAD_P \
+  __builtin_expect (THREAD_GETMEM (THREAD_SELF,				      \
+				   header.multiple_threads) == 0, 1)
+# else
+#  define SINGLE_THREAD_P ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1
+# endif
+
+#elif !defined __ASSEMBLER__
+
+# define SINGLE_THREAD_P (1)
+# define NO_CANCELLATION 1
+
+#endif
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S
new file mode 100644
index 000000000..1a3827789
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S
@@ -0,0 +1,49 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
+
+   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 <sysdep.h>
+#include <tcb-offsets.h>
+
+	.text
+	.globl		__syscall_error
+ENTRY(__vfork)
+	ld	[%g7 + PID], %o5
+	cmp	%o5, 0
+	bne	1f
+	 sub	%g0, %o5, %o4
+	sethi	%hi(0x80000000), %o4
+1:	st	%o4, [%g7 + PID]
+
+	LOADSYSCALL(vfork)
+	ta	0x10
+	bcc	2f
+	 mov	%o7, %g1
+	st	%o5, [%g7 + PID]
+	call	__syscall_error
+	 mov	%g1, %o7
+2:	sub	%o1, 1, %o1
+	andcc	%o0, %o1, %o0
+	bne,a	1f
+	 st	%o5, [%g7 + PID]
+1:	retl
+	 nop
+END(__vfork)
+
+hidden_def (vfork)
+weak_alias (__vfork, vfork)