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-rw-r--r--sysdeps/unix/sysv/linux/sh/sh3/getcontext.S88
-rw-r--r--sysdeps/unix/sysv/linux/sh/sh3/setcontext.S99
-rw-r--r--sysdeps/unix/sysv/linux/sh/sh3/swapcontext.S132
-rw-r--r--sysdeps/unix/sysv/linux/sh/sh3/sys/ucontext.h102
-rw-r--r--sysdeps/unix/sysv/linux/sh/sh3/ucontext_i.sym38
5 files changed, 459 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/sh/sh3/getcontext.S b/sysdeps/unix/sysv/linux/sh/sh3/getcontext.S
new file mode 100644
index 0000000000..66b3daaa3b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sh/sh3/getcontext.S
@@ -0,0 +1,88 @@
+/* Save current context.
+   Copyright (C) 2005 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 <sysdep.h>
+
+#include "ucontext_i.h"
+
+/*  int __getcontext (ucontext_t *uc);  */
+
+	.text
+	.align  5
+ENTRY(__getcontext)
+
+	/* Return value of getcontext.  R0 is the only register whose
+	   value is not preserved.  */
+	mov	#0, r0
+	mov.l	r0, @(oR0,r4)
+	mov.l	r1, @(oR1,r4)
+	mov.l	r2, @(oR2,r4)
+	mov.l	r3, @(oR3,r4)
+	mov.l	r4, @(oR4,r4)
+	mov.l	r5, @(oR5,r4)
+	mov.l	r6, @(oR6,r4)
+	mov.l	r7, @(oR7,r4)
+	mov	r4, r0
+	add	#(oMACL+4), r0
+	sts.l	macl, @-r0
+	sts.l	mach, @-r0
+	stc.l	gbr, @-r0
+
+	/* Save T flag to SR.  */
+	movt	r1
+	mov.l	r1, @-r0
+	sts.l	pr, @-r0
+
+	/* The return address of getcontext is the restart pc.  */
+	sts.l	pr, @-r0
+
+	mov.l	r15, @-r0
+	mov.l	r14, @-r0
+	mov.l	r13, @-r0
+	mov.l	r12, @-r0
+	mov.l	r11, @-r0
+	mov.l	r10, @-r0
+	mov.l	r9, @-r0
+	mov.l	r8, @-r0
+
+	/* sigprocmask (SIG_BLOCK, NULL, &uc->uc_sigmask).  */
+	mov	r4, r6
+	add	#oSIGMASK, r6
+	mov	#SIG_BLOCK, r4
+	mov	#0, r5
+	mov	#+SYS_ify(sigprocmask), r3
+	trapa	#0x13
+	mov     r0, 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	.Lgetcontext_end
+.Lsyscall_error:	
+	SYSCALL_ERROR_HANDLER
+.Lgetcontext_end:
+	/* All done, return 0 for success.  */
+	mov	#0, r0
+.Lpseudo_end:
+	rts
+	 nop
+
+PSEUDO_END(__getcontext)
+
+weak_alias (__getcontext, getcontext)
diff --git a/sysdeps/unix/sysv/linux/sh/sh3/setcontext.S b/sysdeps/unix/sysv/linux/sh/sh3/setcontext.S
new file mode 100644
index 0000000000..3136267aca
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sh/sh3/setcontext.S
@@ -0,0 +1,99 @@
+/* Install given context.
+   Copyright (C) 2005 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 <sysdep.h>
+
+#include "ucontext_i.h"
+
+/*  int __setcontext (const ucontext_t *uc);  */
+
+	.text
+	.align  5
+ENTRY(__setcontext)
+
+	mov	r4, r8
+
+	/* sigprocmask (SIG_SETMASK, &uc->uc_sigmask, NULL).  */
+	mov	r4, r5
+	add	#oSIGMASK, r5
+	mov	#SIG_SETMASK, r4
+	mov	#0, r6
+	mov	#+SYS_ify(sigprocmask), r3
+	trapa	#0x13
+	mov     r0, 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	.Lsetcontext_restore
+.Lsyscall_error:	
+	SYSCALL_ERROR_HANDLER
+.Lpseudo_end:
+	rts
+	 nop
+
+.Lsetcontext_restore:
+	mov	r8, r0
+	add	#(oPC), r0
+	mov.l	@r0+, r2
+	lds.l	@r0+, pr
+
+	/* Restore T frag.  */
+	mov.l	@r0+, r1
+	shlr	r1
+	/* Skip GBR which is used for thread pointer.  */
+	add	#4, r0
+
+	lds.l	@r0+, mach
+	lds.l	@r0+, macl
+
+	mov	r8, r0
+	add	#(oR9), r0
+	mov.l	@r0+, r9
+	mov.l	@r0+, r10
+	mov.l	@r0+, r11
+	mov.l	@r0+, r12
+	mov.l	@r0+, r13
+	mov.l	@r0+, r14
+	mov.l	@r0+, r15
+
+	mov	r8, r0
+	mov.l	@(oR0,r0), r1
+	mov.l	r1, @-r15
+	cfi_adjust_cfa_offset(4)
+	cfi_rel_offset (r1, 0)
+	mov.l	r2, @-r15
+	cfi_adjust_cfa_offset(4)
+	cfi_rel_offset (r2, 0)
+
+	mov.l	@(oR1,r0), r1
+	mov.l	@(oR2,r0), r2
+	mov.l	@(oR3,r0), r3
+	mov.l	@(oR4,r0), r4
+	mov.l	@(oR5,r0), r5
+	mov.l	@(oR6,r0), r6
+	mov.l	@(oR7,r0), r7
+	mov.l	@(oR8,r0), r8
+	mov.l	@r15+, r0
+	jmp	@r0
+	 mov.l	@r15+, r0
+
+PSEUDO_END(__setcontext)
+
+weak_alias (__setcontext, setcontext)
diff --git a/sysdeps/unix/sysv/linux/sh/sh3/swapcontext.S b/sysdeps/unix/sysv/linux/sh/sh3/swapcontext.S
new file mode 100644
index 0000000000..64035e5545
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sh/sh3/swapcontext.S
@@ -0,0 +1,132 @@
+/* Save current context and install the given one.
+   Copyright (C) 2005 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 <sysdep.h>
+
+#include "ucontext_i.h"
+
+/*  int __swapcontext (ucontext_t *ouc, const ucontext_t *uc);  */
+
+	.text
+	.align  5
+ENTRY(__swapcontext)
+
+	/* Return value of getcontext.  R0 is the only register whose
+	   value is not preserved.  */
+	mov	#0, r0
+	mov.l	r0, @(oR0,r4)
+	mov.l	r1, @(oR1,r4)
+	mov.l	r2, @(oR2,r4)
+	mov.l	r3, @(oR3,r4)
+	mov.l	r4, @(oR4,r4)
+	mov.l	r5, @(oR5,r4)
+	mov.l	r6, @(oR6,r4)
+	mov.l	r7, @(oR7,r4)
+	mov	r4, r0
+	add	#(oMACL+4), r0
+	sts.l	macl, @-r0
+	sts.l	mach, @-r0
+	stc.l	gbr, @-r0
+
+	/* Save T flag to SR.  */
+	movt	r1
+	mov.l	r1, @-r0
+	sts.l	pr, @-r0
+
+	/* The return address of getcontext is the restart pc.  */
+	sts.l	pr, @-r0
+
+	mov.l	r15, @-r0
+	mov.l	r14, @-r0
+	mov.l	r13, @-r0
+	mov.l	r12, @-r0
+	mov.l	r11, @-r0
+	mov.l	r10, @-r0
+	mov.l	r9, @-r0
+	mov.l	r8, @-r0
+
+	mov	r5, r8
+
+	/* sigprocmask (SIG_SETMASK, &uc->uc_sigmask, &ouc->uc_sigmask).  */
+	add	#oSIGMASK, r5
+	mov	r4, r6
+	add	#oSIGMASK, r6
+	mov	#SIG_SETMASK, r4
+	mov	#+SYS_ify(sigprocmask), r3
+	trapa	#0x13
+	mov     r0, 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	.Lswapcontext_restore
+.Lsyscall_error:	
+	SYSCALL_ERROR_HANDLER
+.Lpseudo_end:
+	rts
+	 nop
+.Lswapcontext_restore:	
+	mov	r8, r0
+	add	#(oPC), r0
+	mov.l	@r0+, r2
+	lds.l	@r0+, pr
+
+	/* Restore T frag.  */
+	mov.l	@r0+, r1
+	shlr	r1
+	/* Skip GBR which is used for thread pointer.  */
+	add	#4, r0
+
+	lds.l	@r0+, mach
+	lds.l	@r0+, macl
+
+	mov	r8, r0
+	add	#(oR9), r0
+	mov.l	@r0+, r9
+	mov.l	@r0+, r10
+	mov.l	@r0+, r11
+	mov.l	@r0+, r12
+	mov.l	@r0+, r13
+	mov.l	@r0+, r14
+	mov.l	@r0+, r15
+
+	mov	r8, r0
+	mov.l	@(oR0,r0), r1
+	mov.l	r1, @-r15
+	cfi_adjust_cfa_offset(4)
+	cfi_rel_offset (r1, 0)
+	mov.l	r2, @-r15
+	cfi_adjust_cfa_offset(4)
+	cfi_rel_offset (r2, 0)
+
+	mov.l	@(oR1,r0), r1
+	mov.l	@(oR2,r0), r2
+	mov.l	@(oR3,r0), r3
+	mov.l	@(oR4,r0), r4
+	mov.l	@(oR5,r0), r5
+	mov.l	@(oR6,r0), r6
+	mov.l	@(oR7,r0), r7
+	mov.l	@(oR8,r0), r8
+	mov.l	@r15+, r0
+	jmp	@r0
+	 mov.l	@r15+, r0
+	
+PSEUDO_END(__swapcontext)
+
+weak_alias (__swapcontext, swapcontext)
diff --git a/sysdeps/unix/sysv/linux/sh/sh3/sys/ucontext.h b/sysdeps/unix/sysv/linux/sh/sh3/sys/ucontext.h
new file mode 100644
index 0000000000..946df0dfd6
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sh/sh3/sys/ucontext.h
@@ -0,0 +1,102 @@
+/* Copyright (C) 1999, 2000, 2001, 2005 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.  */
+
+/* Where is System V/SH ABI?  */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H	1
+
+#include <features.h>
+#include <signal.h>
+
+/* We need the signal context definitions even if they are not used
+   included in <signal.h>.  */
+#include <bits/sigcontext.h>
+
+
+typedef int greg_t;
+
+/* Number of general registers.  */
+#define NFPREG	16
+
+/* Container for all general registers.  */
+typedef greg_t gregset_t[NFPREG];
+
+#ifdef __USE_GNU
+/* Number of each register is the `gregset_t' array.  */
+enum
+{
+  R0 = 0,
+#define R0	R0
+  R1 = 1,
+#define R1	R1
+  R2 = 2,
+#define R2	R2
+  R3 = 3,
+#define R3	R3
+  R4 = 4,
+#define R4	R4
+  R5 = 5,
+#define R5	R5
+  R6 = 6,
+#define R6	R6
+  R7 = 7,
+#define R7	R7
+  R8 = 8,
+#define R8	R8
+  R9 = 9,
+#define R9	R9
+  R10 = 10,
+#define R10	R10
+  R11 = 11,
+#define R11	R11
+  R12 = 12,
+#define R12	R12
+  R13 = 13,
+#define R13	R13
+  R14 = 14,
+#define R14	R14
+  R15 = 15,
+#define R15	R15
+};
+#endif
+
+/* Context to describe whole processor state.  */
+typedef struct
+  {
+    unsigned int oldmask;
+    gregset_t gregs;
+    unsigned int pc;
+    unsigned int pr;
+    unsigned int sr;
+    unsigned int gbr;
+    unsigned int mach;
+    unsigned int macl;
+  } mcontext_t;
+
+/* Userlevel context.  */
+typedef struct ucontext
+  {
+    unsigned long int uc_flags;
+    struct ucontext *uc_link;
+    stack_t uc_stack;
+    mcontext_t uc_mcontext;
+    __sigset_t uc_sigmask;
+  } ucontext_t;
+
+#endif /* sys/ucontext.h */
diff --git a/sysdeps/unix/sysv/linux/sh/sh3/ucontext_i.sym b/sysdeps/unix/sysv/linux/sh/sh3/ucontext_i.sym
new file mode 100644
index 0000000000..17397c5511
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sh/sh3/ucontext_i.sym
@@ -0,0 +1,38 @@
+#include <stddef.h>
+#include <signal.h>
+#include <sys/ucontext.h>
+
+--
+
+SIG_BLOCK
+SIG_SETMASK
+
+#define ucontext(member)	offsetof (ucontext_t, member)
+#define mcontext(member)	ucontext (uc_mcontext.member)
+
+oLINK		ucontext (uc_link)
+oSS_SP		ucontext (uc_stack.ss_sp)
+oSS_SIZE	ucontext (uc_stack.ss_size)
+oR0		mcontext (gregs[R0])
+oR1		mcontext (gregs[R1])
+oR2		mcontext (gregs[R2])
+oR3		mcontext (gregs[R3])
+oR4		mcontext (gregs[R4])
+oR5		mcontext (gregs[R5])
+oR6		mcontext (gregs[R6])
+oR7		mcontext (gregs[R7])
+oR8		mcontext (gregs[R8])
+oR9		mcontext (gregs[R9])
+oR10		mcontext (gregs[R10])
+oR11		mcontext (gregs[R11])
+oR12		mcontext (gregs[R12])
+oR13		mcontext (gregs[R13])
+oR14		mcontext (gregs[R14])
+oR15		mcontext (gregs[R15])
+oPC		mcontext (pc)
+oPR		mcontext (pr)
+oSR		mcontext (sr)
+oGBR		mcontext (gbr)
+oMACH		mcontext (mach)
+oMACL		mcontext (macl)
+oSIGMASK	ucontext (uc_sigmask)
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-10-30 18:18:28 +0000