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-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/getcontext.S40
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/makecontext.c67
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/setcontext.S10
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/swapcontext.c48
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/ucontext_i.h27
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sys/ucontext.h7
6 files changed, 189 insertions, 10 deletions
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/getcontext.S b/sysdeps/unix/sysv/linux/sparc/sparc64/getcontext.S
index 05b06269e4..457f07448c 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/getcontext.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/getcontext.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 2001 Free Software Foundation, Inc.
Contributed by Richard Henderson (rth@tamu.edu).
The GNU C Library is free software; you can redistribute it and/or
@@ -17,13 +17,47 @@
Boston, MA 02111-1307, USA. */
#include <sysdep.h>
+#include "ucontext_i.h"
-/* void getcontext(ucontext_t *); */
+/* int getcontext(ucontext_t *); */
ENTRY(__getcontext)
+ ldx [%o0 + UC_LINK], %o1 /* Preserve uc_link field, the
+ trap clears it. */
ta 0x6e
- ret
+1:
+ ldx [%o0 + UC_M_PC], %o2
+ ldx [%o0 + UC_M_NPC], %o3
+ ldx [%o0 + __UC_SIGMASK], %o4
+ stx %o1, [%o0 + UC_LINK]
+ add %o2, 2f - 1b, %o2
+ stx %o2, [%o0 + UC_M_PC]
+ add %o3, 2f - 1b, %o3
+ stx %o3, [%o0 + UC_M_NPC]
+#if SIGMASK_WORDS == 16
+ stx %o4, [%o0 + UC_SIGMASK]
+ stx %g0, [%o0 + UC_SIGMASK + 8]
+ stx %g0, [%o0 + UC_SIGMASK + 16]
+ stx %g0, [%o0 + UC_SIGMASK + 24]
+ stx %g0, [%o0 + UC_SIGMASK + 32]
+ stx %g0, [%o0 + UC_SIGMASK + 40]
+ stx %g0, [%o0 + UC_SIGMASK + 48]
+ stx %g0, [%o0 + UC_SIGMASK + 56]
+ stx %g0, [%o0 + UC_SIGMASK + 64]
+ stx %g0, [%o0 + UC_SIGMASK + 72]
+ stx %g0, [%o0 + UC_SIGMASK + 80]
+ stx %g0, [%o0 + UC_SIGMASK + 88]
+ stx %g0, [%o0 + UC_SIGMASK + 96]
+ stx %g0, [%o0 + UC_SIGMASK + 104]
+ stx %g0, [%o0 + UC_SIGMASK + 112]
+ stx %g0, [%o0 + UC_SIGMASK + 120]
+#else
+# error Adjust __getcontext
+#endif
+2:
+ retl
+ clr %o0
END(__getcontext)
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/makecontext.c b/sysdeps/unix/sysv/linux/sparc/sparc64/makecontext.c
new file mode 100644
index 0000000000..93ac398b2c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/makecontext.c
@@ -0,0 +1,67 @@
+/* Copyright (C) 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>.
+
+ 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. */
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <ucontext.h>
+
+void
+__makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...)
+{
+ extern void __makecontext_ret (void);
+ unsigned long *sp, *topsp;
+ va_list ap;
+ int i;
+
+ sp = (long *) ((long) ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size);
+ sp -= (argc > 6 ? argc : 6) + 32;
+ sp = (long *) (((long) sp) & -16L);
+ topsp = sp + (argc > 6 ? argc : 6) + 16;
+
+ ucp->uc_mcontext.mc_gregs[MC_PC] = (long) func;
+ ucp->uc_mcontext.mc_gregs[MC_NPC] = ((long) func) + 4;
+ ucp->uc_mcontext.mc_gregs[MC_O6] = ((long) sp) - 0x7ff;
+ ucp->uc_mcontext.mc_gregs[MC_O7] = ((long) __makecontext_ret) - 8;
+ ucp->uc_mcontext.mc_fp = ((long) topsp) - 0x7ff;
+ ucp->uc_mcontext.mc_i7 = 0;
+ topsp[14] = 0;
+ topsp[15] = 0;
+ sp[8] = (long) ucp->uc_link;
+ va_start (ap, argc);
+ for (i = 0; i < argc; ++i)
+ if (i < 6)
+ ucp->uc_mcontext.mc_gregs[MC_O0 + i] = va_arg (ap, long);
+ else
+ sp[16 + i] = va_arg (ap, long);
+ va_end (ap);
+}
+
+asm (" \n\
+ .text \n\
+ .type __makecontext_ret, #function \n\
+__makecontext_ret: \n\
+ mov 1, %o1 \n\
+ call __setcontext \n\
+ mov %i0, %o0 \n\
+ unimp 0 \n\
+ .size __makecontext_ret, .-__makecontext_ret \n\
+ ");
+
+weak_alias (__makecontext, makecontext)
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/setcontext.S b/sysdeps/unix/sysv/linux/sparc/sparc64/setcontext.S
index 2968b65633..bdd841dda3 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/setcontext.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/setcontext.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 2001 Free Software Foundation, Inc.
Contributed by Richard Henderson (rth@tamu.edu).
The GNU C Library is free software; you can redistribute it and/or
@@ -17,17 +17,19 @@
Boston, MA 02111-1307, USA. */
#include <sysdep.h>
+#include "ucontext_i.h"
-
-/* void setcontext(ucontext_t *ctx); */
+/* int setcontext(ucontext_t *ctx); */
.weak setcontext
ENTRY(setcontext)
mov 1, %o1
-/* void __setcontext(ucontext_t *ctx, int restoremask); */
+/* int __setcontext(ucontext_t *ctx, int restoremask); */
ENTRY(__setcontext)
+ ldx [%o0 + UC_SIGMASK], %o2
+ stx %o2, [%o0 + __UC_SIGMASK]
ta 0x6f
END(__setcontext)
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/swapcontext.c b/sysdeps/unix/sysv/linux/sparc/sparc64/swapcontext.c
new file mode 100644
index 0000000000..141c74663f
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/swapcontext.c
@@ -0,0 +1,48 @@
+/* Copyright (C) 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>.
+
+ 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. */
+
+#include <ucontext.h>
+
+extern int __getcontext (ucontext_t *ucp);
+extern int __setcontext (const ucontext_t *ucp, int restoremask);
+
+int
+__swapcontext (ucontext_t *oucp, const ucontext_t *ucp)
+{
+ extern void __swapcontext_ret (void);
+ /* Save the current machine context to oucp. */
+ __getcontext (oucp);
+ /* Modify oucp to skip the __setcontext call on reactivation. */
+ oucp->uc_mcontext.mc_gregs[MC_PC] = (long) __swapcontext_ret;
+ oucp->uc_mcontext.mc_gregs[MC_NPC] = ((long) __swapcontext_ret) + 4;
+ /* Restore the machine context in ucp. */
+ __setcontext (ucp, 1);
+ return 0;
+}
+
+asm (" \n\
+ .text \n\
+ .type __swapcontext_ret, #function \n\
+__swapcontext_ret: \n\
+ return %i7 + 8 \n\
+ clr %o0 \n\
+ .size __swapcontext_ret, .-__swapcontext_ret \n\
+ ");
+
+weak_alias (__swapcontext, swapcontext)
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/ucontext_i.h b/sysdeps/unix/sysv/linux/sparc/sparc64/ucontext_i.h
new file mode 100644
index 0000000000..b7934d7e27
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/ucontext_i.h
@@ -0,0 +1,27 @@
+/* Copyright (C) 2001 Free Software Foundation, Inc.
+ Contributed by Jakub Jelinek <jakub@redhat.com>.
+
+ 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. */
+
+/* Constants shared between setcontext() and getcontext(). Don't
+ install this header file. */
+
+#define UC_LINK 0
+#define __UC_SIGMASK 16
+#define UC_M_PC 40
+#define UC_M_NPC 48
+#define UC_SIGMASK 536
+#define SIGMASK_WORDS 16
diff --git a/sysdeps/unix/sysv/linux/sparc/sys/ucontext.h b/sysdeps/unix/sysv/linux/sparc/sys/ucontext.h
index 58295ff5b1..df3f300fe6 100644
--- a/sysdeps/unix/sysv/linux/sparc/sys/ucontext.h
+++ b/sysdeps/unix/sysv/linux/sparc/sys/ucontext.h
@@ -81,8 +81,10 @@ typedef struct {
typedef struct ucontext {
struct ucontext *uc_link;
unsigned long uc_flags;
- unsigned long uc_sigmask;
+ unsigned long __uc_sigmask;
mcontext_t uc_mcontext;
+ stack_t uc_stack;
+ __sigset_t uc_sigmask;
} ucontext_t;
#endif /* __WORDISIZE == 64 */
@@ -259,10 +261,9 @@ typedef struct ucontext
{
unsigned long uc_flags;
struct ucontext *uc_link;
- unsigned long uc_sigmask[4]; /* a svr4 sigset_t */
+ __sigset_t uc_sigmask;
stack_t uc_stack;
mcontext_t uc_mcontext;
- long uc_filler[23];
} ucontext_t;
#endif /* __WORDSIZE == 32 */
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-31 11:38:10 +0000