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-rw-r--r--libc/sysdeps/linux/cris/__longjmp.S33
-rw-r--r--libc/sysdeps/linux/cris/bits/termios.h5
-rw-r--r--libc/sysdeps/linux/cris/clone.S21
-rw-r--r--libc/sysdeps/linux/cris/setjmp.S33
-rw-r--r--libc/sysdeps/linux/cris/syscall.S23
-rw-r--r--libc/sysdeps/linux/cris/sysdep.S31
-rw-r--r--libc/sysdeps/linux/cris/sysdep.h46
7 files changed, 156 insertions, 36 deletions
diff --git a/libc/sysdeps/linux/cris/__longjmp.S b/libc/sysdeps/linux/cris/__longjmp.S
index 8c7ca6eaa..52a986fd9 100644
--- a/libc/sysdeps/linux/cris/__longjmp.S
+++ b/libc/sysdeps/linux/cris/__longjmp.S
@@ -1,5 +1,5 @@
/* longjmp for CRIS.
- Copyright (C) 2001 Free Software Foundation, Inc.
+ Copyright (C) 2001, 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
@@ -23,17 +23,40 @@
#define _ASM
#include <bits/setjmp.h>
+ .syntax no_register_prefix
+
/* Saving and restoring CCR is meaningless, so we don't do it. */
ENTRY (__longjmp)
/* Note that r10 = jmp_buf, r11 = retval. */
- move [$r10+16*4],$srp
- test.d $r11
+#ifdef __arch_v32
+
+ /* We don't restore the call-clobbered registers for v32;
+ their space (corresponding to v10) is now defined as
+ reserved. */
+ movem [r10],r9
+ addq 14*4,r10
+ cmpq 0,r11
+ beq 0f
+ move.d [r10+],sp
+
+ move.d r11,r9
+0:
+ move.d [r10+],acr
+ jump acr
+ move [r10],srp
+
+#else
+
+ move [r10+16*4],srp
+ test.d r11
beq 0f /* Already a 1 in place. */
nop
/* Offset for r9, the return value (see setjmp). */
- move.d $r11,[$r10+6*4]
+ move.d r11,[r10+6*4]
0:
- movem [$r10],$pc
+ movem [r10],pc
+
+#endif
END (__longjmp)
libc_hidden_def(__longjmp)
diff --git a/libc/sysdeps/linux/cris/bits/termios.h b/libc/sysdeps/linux/cris/bits/termios.h
index ab63aaa83..63ca4ea93 100644
--- a/libc/sysdeps/linux/cris/bits/termios.h
+++ b/libc/sysdeps/linux/cris/bits/termios.h
@@ -161,7 +161,12 @@ struct termios
#define B921600 0010005
#define B1843200 0010006
#define B6250000 0010007
+#ifdef __arch_v32
+#define B12500000 0010010
+#define __MAX_BAUD B12500000
+#else
#define __MAX_BAUD B6250000
+#endif
#ifdef __USE_MISC
# define CIBAUD 002003600000 /* input baud rate (not used) */
# define CMSPAR 010000000000 /* mark or space (stick) parity */
diff --git a/libc/sysdeps/linux/cris/clone.S b/libc/sysdeps/linux/cris/clone.S
index a3b1cff7e..9e284fe0a 100644
--- a/libc/sysdeps/linux/cris/clone.S
+++ b/libc/sysdeps/linux/cris/clone.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001 Free Software Foundation, Inc.
+/* Copyright (C) 2001, 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
@@ -17,9 +17,10 @@
Boston, MA 02111-1307, USA. */
#include <features.h>
-#include <asm/errno.h>
#include <sys/syscall.h>
#include "sysdep.h"
+#define _ERRNO_H 1
+#include <bits/errno.h>
/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */
@@ -29,12 +30,13 @@
ENTRY (clone)
/* Sanity check arguments: No NULL function pointers. Allow a NULL
stack pointer though; it makes the kernel allocate stack. */
- test.d r10
+ cmpq 0,r10
beq 1f
nop
/* We need to muck with a few registers. */
- movem r1,[sp=sp-8]
+ subq 8,sp
+ movem r1,[sp]
/* Save the function pointer and argument. We can't save them
onto the new stack since it can be NULL. */
@@ -48,7 +50,7 @@ ENTRY (clone)
/* Do the system call. */
movu.w SYS_ify (clone),r9
break 13
- test.d r10
+ cmpq 0,r10
beq .Lthread_start
nop
@@ -65,15 +67,22 @@ ENTRY (clone)
/* Terminate frame pointers here. */
moveq 0,r8
+#ifdef __arch_v32
+ /* Is this the right place for an argument? */
+ jsr r0
+ move.d r1,r10
+#else
/* I've told you once. */
move.d r1,r10
jsr r0
+#endif
SETUP_PIC
PLTCALL (HIDDEN_JUMPTARGET(_exit))
/* Die horribly. */
- test.d [6809]
+ move.d 6809,r13
+ test.d [r13]
/* Stop the unstoppable. */
9:
diff --git a/libc/sysdeps/linux/cris/setjmp.S b/libc/sysdeps/linux/cris/setjmp.S
index 0c5608fbd..e7bb6358a 100644
--- a/libc/sysdeps/linux/cris/setjmp.S
+++ b/libc/sysdeps/linux/cris/setjmp.S
@@ -1,5 +1,5 @@
/* setjmp for CRIS.
- Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2002, 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
@@ -18,14 +18,28 @@
Boston, MA 02111-1307, USA. */
#include "sysdep.h"
-#define _ASM
#define _SETJMP_H
+#define _ASM
#include <bits/setjmp.h>
.syntax no_register_prefix
ENTRY (__sigsetjmp)
.Local__sigsetjmp:
+
+#ifdef __arch_v32
+
+ moveq 1,r9
+ move.d r10,r12
+ addq 14*4,r12
+ movem r9,[r10]
+ lapc 0f,r13
+ move.d sp,[r12+]
+ move.d r13,[r12+]
+ move srp,[r12+]
+
+#else
+
moveq 1,r9
movem sp,[r10+1*4]
#ifdef __PIC__
@@ -36,6 +50,15 @@ ENTRY (__sigsetjmp)
#endif
move.d r9,[r10]
move srp,[r10+16*4]
+
+#endif
+
+/* Saving and restoring CCR is meaningless, so we don't do it. */
+
+/* Saving registers would complicate the implementation, but we
+ can get away with not setting up R0 here since we know that
+ __sigjmp_save is a local symbol; it doesn't have a PLT (which
+ would have required GOT in R0 at the time of the jump). */
PLTJUMP (__sigjmp_save)
0: /* This is where longjmp returns. (Don't use "ret" - it's a macro. */
Ret
@@ -59,9 +82,3 @@ ENTRY (setjmp)
ba .Local__sigsetjmp
moveq 1,r11
END (setjmp)
-
-/*
-weak_extern (__setjmp)
-weak_extern (_setjmp)
-weak_extern (setjmp)
-*/
diff --git a/libc/sysdeps/linux/cris/syscall.S b/libc/sysdeps/linux/cris/syscall.S
index 1a32108d7..d4b052e8e 100644
--- a/libc/sysdeps/linux/cris/syscall.S
+++ b/libc/sysdeps/linux/cris/syscall.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2001, 2003, 2004 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
@@ -23,6 +23,26 @@
/* Make syscall (callno, ...) into a system call. */
ENTRY (syscall)
+#ifdef __arch_v32
+ subq 4,sp
+ move.d r10,r9
+ move srp,[sp]
+ addoq 8,sp,acr
+ move.d r11,r10
+ move [acr],mof
+ addoq 12,sp,acr
+ move.d r12,r11
+ move [acr],srp
+ addoq 4,sp,acr
+ move.d r13,r12
+ move.d [acr],r13
+ break 13
+ cmps.w -4096,r10
+ bhs 0f
+ move [sp+],srp
+ Ret
+ nop
+#else
push srp
move.d r10,r9
move.d r11,r10
@@ -37,4 +57,5 @@ ENTRY (syscall)
pop srp
Ret
nop
+#endif
PSEUDO_END (syscall)
diff --git a/libc/sysdeps/linux/cris/sysdep.S b/libc/sysdeps/linux/cris/sysdep.S
index 30d77df15..4e558153b 100644
--- a/libc/sysdeps/linux/cris/sysdep.S
+++ b/libc/sysdeps/linux/cris/sysdep.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001 Free Software Foundation, Inc.
+/* Copyright (C) 2001, 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
@@ -25,11 +25,9 @@
.type C_SYMBOL_NAME(errno),@object
.lcomm C_SYMBOL_NAME(errno),4
+ .weak errno
errno = _errno
- /* weak_alias (errno, _errno) */
-
-
/* The syscall stubs jump here when they detect an error, bot for PIC and
non-PIC. */
@@ -39,25 +37,38 @@ ENTRY (__syscall_error)
neg.d r10,r10
#ifdef __UCLIBC_HAS_THREADS__
- push r10
- push srp
+ subq 4,sp
+ move.d r10,[sp]
+ subq 4,sp
+ move srp,[sp]
/* Note that __syscall_error is only visible within this library,
and no-one passes it on as a pointer, so can assume that R0 (GOT
pointer) is correctly set up. */
- PLTCALL (__errno_location)
+ PLTCALL (HIDDEN_JUMPTARGET(__errno_location))
- pop srp
- pop r11
+ move [sp+],srp
+ move.d [sp+],r11
move.d r11,[r10]
#else /* not __UCLIBC_HAS_THREADS__ */
+#ifdef __arch_v32
+# ifdef __PIC__
+ addo.d C_SYMBOL_NAME(errno:GOT),r0,acr
+ move.d [acr],r9
+ move.d r10,[r9]
+# else /* not __PIC__ */
+ lapc C_SYMBOL_NAME(errno),acr
+ move.d r10,[r9]
+# endif /* not __PIC__ */
+#else /* not __arch_v32 */
# ifdef __PIC__
move.d [r0+C_SYMBOL_NAME(errno:GOT)],r9
move.d r10,[r9]
# else
move.d r10,[C_SYMBOL_NAME(errno)]
# endif
+#endif /* not __arch_v32 */
#endif /* __UCLIBC_HAS_THREADS__ */
#ifdef __PIC__
@@ -69,7 +80,7 @@ ENTRY (__syscall_error)
moveq -1,r10
Ret
- pop r0
+ move.d [sp+],r0
#else
Ret
moveq -1,r10
diff --git a/libc/sysdeps/linux/cris/sysdep.h b/libc/sysdeps/linux/cris/sysdep.h
index 08cf6221c..593e7772e 100644
--- a/libc/sysdeps/linux/cris/sysdep.h
+++ b/libc/sysdeps/linux/cris/sysdep.h
@@ -40,8 +40,14 @@
#define END(sym)
#endif
+#undef SYS_ify
+#define SYS_ify(syscall_name) (__NR_##syscall_name)
+
#ifdef __ASSEMBLER__
+#undef SYS_ify
+#define SYS_ify(syscall_name) __NR_##syscall_name
+
/* Syntactic details of assembly-code. */
/* It is *not* generally true that "ELF uses byte-counts for .align, most
@@ -58,6 +64,37 @@
/* The non-PIC jump is preferred, since it does not stall, and does not
invoke generation of a PLT. These macros assume that $r0 is set up as
GOT register. */
+#ifdef __arch_v32
+#ifdef __PIC__
+#define PLTJUMP(_x) \
+ ba C_SYMBOL_NAME (_x):PLT @ \
+ nop
+
+#define PLTCALL(_x) \
+ bsr C_SYMBOL_NAME (_x):PLT @ \
+ nop
+
+#define SETUP_PIC \
+ subq 4,$sp @ \
+ move.d $r0,[$sp] @ \
+ lapc _GLOBAL_OFFSET_TABLE_,$r0
+
+#define TEARDOWN_PIC move.d [$sp+],$r0
+#else
+#define PLTJUMP(_x) \
+ ba C_SYMBOL_NAME (_x) @ \
+ nop
+
+#define PLTCALL(_x) \
+ bsr C_SYMBOL_NAME (_x) @ \
+ nop
+
+#define SETUP_PIC
+#define TEARDOWN_PIC
+#endif
+
+#else
+
#ifdef __PIC__
#define PLTJUMP(_x) \
add.d C_SYMBOL_NAME (_x):PLT,$pc
@@ -78,14 +115,15 @@
#define TEARDOWN_PIC
#endif
+#endif /* __arch_v32 */
+
/* Define an entry point visible from C. */
#define ENTRY(name) \
.text @ \
ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (name) @ \
ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME (name), function) @ \
.align ALIGNARG (2) @ \
- C_LABEL(name) @ \
- CALL_MCOUNT
+ C_LABEL(name)
#undef END
#define END(name) \
@@ -107,9 +145,5 @@
PLTJUMP (__syscall_error) @ \
END (name)
-/* If compiled for profiling, do nothing */
-#define CALL_MCOUNT /* Do nothing. */
-
-
#endif /* __ASSEMBLER__ */
#endif /* _SYSDEP_H_ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 01:53:36 +0000