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-rw-r--r--libc/sysdeps/linux/sh/Makefile4
-rw-r--r--libc/sysdeps/linux/sh/_mmap.c45
-rw-r--r--libc/sysdeps/linux/sh/crt0.S40
-rw-r--r--libc/sysdeps/linux/sh/longjmp.c49
-rw-r--r--libc/sysdeps/linux/sh/vfork.S123
5 files changed, 218 insertions, 43 deletions
diff --git a/libc/sysdeps/linux/sh/Makefile b/libc/sysdeps/linux/sh/Makefile
index f36dca0fa..d39d3bf40 100644
--- a/libc/sysdeps/linux/sh/Makefile
+++ b/libc/sysdeps/linux/sh/Makefile
@@ -32,10 +32,10 @@ TARGET_MACHINE_TYPE=$(shell $(CC) -dumpmachine)
CRT0=crt0.S
CRT0_OBJ=$(patsubst %.S,%.o, $(CRT0))
-SSRC=setjmp.S bsd-setjmp.S bsd-_setjmp.S __longjmp.S
+SSRC=setjmp.S bsd-setjmp.S bsd-_setjmp.S __longjmp.S vfork.S
SOBJS=$(patsubst %.S,%.o, $(SSRC))
-CSRC=vfork.c _mmap.c longjmp.c jmp-unwind.c
+CSRC=_mmap.c longjmp.c
COBJS=$(patsubst %.c,%.o, $(CSRC))
OBJS=$(SOBJS) $(MOBJ) $(COBJS)
diff --git a/libc/sysdeps/linux/sh/_mmap.c b/libc/sysdeps/linux/sh/_mmap.c
index cee3be3dc..3b68e094d 100644
--- a/libc/sysdeps/linux/sh/_mmap.c
+++ b/libc/sysdeps/linux/sh/_mmap.c
@@ -1,6 +1,49 @@
+/* Copyright (C) 2001 Hewlett-Packard
+
+ This program 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.
+
+ This program 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 this program; if not, write to the Free Software Foundation, Inc.,
+ 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+ Derived in part from the Linux-8086 C library, the GNU C Library, and several
+ other sundry sources. Files within this library are copyright by their
+ respective copyright holders.
+*/
+
#include <unistd.h>
#include <sys/mman.h>
+#ifdef HIOS
+
+#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5, type6,arg6) \
+type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) \
+{ \
+register long __sc3 __asm__ ("r3") = __NR_##name; \
+register long __sc4 __asm__ ("r4") = (long) arg1; \
+register long __sc5 __asm__ ("r5") = (long) arg2; \
+register long __sc6 __asm__ ("r6") = (long) arg3; \
+register long __sc7 __asm__ ("r7") = (long) arg4; \
+register long __sc0 __asm__ ("r0") = (long) arg5; \
+register long __sc1 __asm__ ("r1") = (long) arg6; \
+__asm__ __volatile__ ("trapa #0x2E" \
+ : "=z" (__sc0) \
+ : "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6), "r" (__sc7), \
+ "r" (__sc3), "r" (__sc1) \
+ : "memory" ); \
+__syscall_return(type,__sc0); \
+}
+
+#else // HIOS
+
#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5, type6,arg6) \
type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) \
{ \
@@ -19,6 +62,8 @@ __asm__ __volatile__ ("trapa #0x15" \
__syscall_return(type,__sc0); \
}
+#endif // HIOS
+
_syscall6(__ptr_t, mmap, __ptr_t, addr, size_t, len, int, prot, int, flags, int, fd, __off_t, offset);
diff --git a/libc/sysdeps/linux/sh/crt0.S b/libc/sysdeps/linux/sh/crt0.S
index 7808ffd34..af1577814 100644
--- a/libc/sysdeps/linux/sh/crt0.S
+++ b/libc/sysdeps/linux/sh/crt0.S
@@ -2,22 +2,24 @@
Copyright (C) 1999 Free Software Foundation, Inc.
Copyright (C) 2001 Hewlett-Packard Australia
- This file is part of the GNU C Library.
+ This program 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 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.
+ This program 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.
- 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 this program; if not, write to the Free Software Foundation, Inc.,
+ 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- 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. */
+ Derived in part from the Linux-8086 C library, the GNU C Library, and several
+ other sundry sources. Files within this library are copyright by their
+ respective copyright holders.
+*/
/* This is the canonical entry point, usually the first thing in the text
segment.
@@ -60,6 +62,15 @@ _start:
shll2 r6
add r5,r6
+ ! Clear BSS area
+ mov.l 3f, r1
+ add #4, r1
+ mov.l 4f, r2
+ mov #0, r0
+9: cmp/hs r2, r1
+ bf/s 9b ! while (r1 < r2)
+ mov.l r0,@-r2
+
/* call main */
mov.l L_main,r1
jsr @r1
@@ -72,6 +83,9 @@ _start:
.align 2
+3: .long __bss_start
+4: .long _end
+
L_main:
.long __uClibc_main
diff --git a/libc/sysdeps/linux/sh/longjmp.c b/libc/sysdeps/linux/sh/longjmp.c
index fd2a2079c..5395d5568 100644
--- a/libc/sysdeps/linux/sh/longjmp.c
+++ b/libc/sysdeps/linux/sh/longjmp.c
@@ -1,43 +1,36 @@
/* Copyright (C) 1991, 92, 94, 95, 97, 98, 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. */
-
+ Copyright (C) 2001 Hewlett-Packard Australia
+
+ This program 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.
+
+ This program 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 this program; if not, write to the Free Software Foundation, Inc.,
+ 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+ Derived in part from the Linux-8086 C library, the GNU C Library, and several
+ other sundry sources. Files within this library are copyright by their
+ respective copyright holders.
+*/
+
#include <stddef.h>
#include <setjmp.h>
#include <signal.h>
-#if 0
-extern void _longjmp_unwind (jmp_buf env, int val);
-#endif
-extern void __longjmp(__jmp_buf __env, int __val)
- __attribute__ ((__noreturn__));
-
/* Set the signal mask to the one specified in ENV, and jump
to the position specified in ENV, causing the setjmp
call there to return VAL, or 1 if VAL is 0. */
void
__uClibc_siglongjmp (sigjmp_buf env, int val)
{
-#if 0
- /* Perform any cleanups needed by the frames being unwound. */
- _longjmp_unwind (env, val);
-#endif
-
if (env[0].__mask_was_saved)
/* Restore the saved signal mask. */
(void) __sigprocmask (SIG_SETMASK, &env[0].__saved_mask,
diff --git a/libc/sysdeps/linux/sh/vfork.S b/libc/sysdeps/linux/sh/vfork.S
new file mode 100644
index 000000000..6b20cc3bb
--- /dev/null
+++ b/libc/sysdeps/linux/sh/vfork.S
@@ -0,0 +1,123 @@
+/* Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+ Copyright (C) 2001 Hewlett-Packard Australia
+
+ This program 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.
+
+ This program 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 this program; if not, write to the Free Software Foundation, Inc.,
+ 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+ Derived in part from the Linux-8086 C library, the GNU C Library, and several
+ other sundry sources. Files within this library are copyright by their
+ respective copyright holders.
+*/
+
+#include <sysdep.h>
+#define _ERRNO_H 1
+#include <bits/errno.h>
+
+/* Clone the calling process, but without copying the whole address space.
+ The calling process is suspended until the new process exits or is
+ replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
+ and the process ID of the new process to the old process. */
+
+.global errno
+
+ENTRY (__vfork)
+
+ mov.l @r15+,r3 // pop value from the stack
+ mov.l .L5,r1
+ mov.l r3,@r1 // save it in .sav_stack
+
+ mov.w .L3, r3
+
+#ifdef HIOS
+ trapa #0x28
+#else
+ trapa #0x10
+#endif
+
+ mov r0, r1
+// 12 arithmetic shifts for the crappy sh2, because shad doesn't exist!
+ shar r1
+ shar r1
+ shar r1
+ shar r1
+ shar r1
+ shar r1
+ shar r1
+ shar r1
+ shar r1
+ shar r1
+ shar r1
+ shar 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 1f
+ mov.w .L1, r1
+ cmp/eq r1, r0
+ bt 2f
+ mov.l .L2, r1
+ jmp @r1
+ mov r0, r4
+
+ .align 4
+
+1:
+ mov.l .L5,r1
+ mov.l @r1,r3 // get it from .sav_stack
+ mov.l r3,@-r15 // restore value to the stack
+
+ rts
+ nop
+
+ .align 4
+
+2:
+__syscall_error:
+ /* Store it in errno... */
+ mov.l .L4, r1
+ mov.l r0, @r1
+
+ mov.l .L5,r1
+ mov.l @r1,r3 // get it from .sav_stack
+ mov.l r3,@-r15 // restore value to the stack
+
+ /* And just kick back a -1. */
+ rts
+ mov #-1, r0
+
+ .align 4
+.L1:
+ .word -ENOSYS
+.L3:
+ .word 190 //__NR_vfork
+
+ .align 4 // Shouldn't be necessary as previously with have two words
+.L2:
+ .long __syscall_error
+
+.L4: .long errno
+
+.L5: .long .sav_stack
+
+ .data
+
+ .align 4
+
+.sav_stack: //area to temporary save the stach
+ .long 0
+
+.weak vfork
+vfork = __vfork
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