* sysdeps/mach/powerpc/machine-sp.h: New file.
* sysdeps/mach/powerpc/sysdep.h: New file.
* sysdeps/mach/powerpc/thread_state.h: New file.
* sysdeps/mach/hurd/i386/Makefile: File removed; crt0.o rules moved ...
* sysdeps/mach/hurd/Makefile: ... to here. For the time being, we can
expect to need the same thing on every platform.
* sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h: File moved ...
* sysdeps/generic/sys/ucontext.h: ... to replace this one.
2001-10-28 Roland McGrath <roland@frob.com>
+ Support for Mach/PowerPC contributed by Peter Bruin <pjbruin@dds.nl>.
+ * sysdeps/mach/powerpc/machine-sp.h: New file.
+ * sysdeps/mach/powerpc/sysdep.h: New file.
+ * sysdeps/mach/powerpc/thread_state.h: New file.
+
+ * sysdeps/mach/hurd/i386/Makefile: File removed; crt0.o rules moved ...
+ * sysdeps/mach/hurd/Makefile: ... to here. For the time being, we can
+ expect to need the same thing on every platform.
+
+ * sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h: File moved ...
+ * sysdeps/generic/sys/ucontext.h: ... to replace this one.
+
* sysdeps/unix/sysv/linux/powerpc/sysdep.h (ALIGNARG,
ASM_TYPE_DIRECTIVE, ASM_SIZE_DIRECTIVE, CALL_MCOUNT, ENTRY, EALIGN,
DO_CALL, JUMPTARGET, PSEUDO, PSEUDO_RET, PSEUDO_END, L, C_TEXT):
-/* Copyright (C) 1997 Free Software Foundation, Inc.
+/* Data structures for user-level context switching. Generic version.
+ Copyright (C) 1997,98,99,2001 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
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
+/* This file's definitions suffice for any platform where all
+ the machine-specific state is described in `struct sigcontext'. */
+
#ifndef _SYS_UCONTEXT_H
#define _SYS_UCONTEXT_H 1
-#error "No system dependent context structure definitions"
+#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 struct sigcontext 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 */
endif
endif
\f
+ifeq ($(subdir),csu)
+
+extra-objs += static-start.o
+
+# We need special startup code for statically linked binaries.
+$(objpfx)crt0.o: $(objpfx)static-start.o $(objpfx)abi-note.o $(objpfx)init.o
+ $(link-relocatable)
+
+endif
+\f
ifeq (hurd, $(subdir))
sysdep_routines += cthreads
endif
+++ /dev/null
-ifeq ($(subdir),csu)
-
-extra-objs += static-start.o
-
-# We need special startup code for statically linked binaries.
-$(objpfx)crt0.o: $(objpfx)static-start.o $(objpfx)abi-note.o $(objpfx)init.o
- $(link-relocatable)
-
-endif
--- /dev/null
+/* Machine-specific function to return the stack pointer. PowerPC version.
+ Copyright (C) 2001 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. */
+
+#ifndef _MACHINE_SP_H
+#define _MACHINE_SP_H
+
+/* Return the current stack pointer. */
+
+#ifndef _EXTERN_INLINE
+/* Make sure this function is included in hurd/threadvar-inlines.c. */
+# ifdef _HURD_THREADVAR_H_EXTERN_INLINE
+# define _EXTERN_INLINE _HURD_THREADVAR_H_EXTERN_INLINE
+# else
+# define _EXTERN_INLINE extern __inline
+# endif
+#endif
+
+_EXTERN_INLINE void *
+__thread_stack_pointer (void)
+{
+ register void *__sp__;
+ __asm__ ("mr %0, 1" : "=r" (__sp__));
+ return __sp__;
+}
+
+#endif /* machine-sp.h */
--- /dev/null
+/* system call details for Mach on PowerPC
+ Copyright (C) 2001 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. */
+
+#ifndef _MACH_POWERPC_SYSDEP_H
+#define _MACH_POWERPC_SYSDEP_H
+
+#define START_ARGS char **sparg
+#define SNARF_ARGS(argc, argv, envp) \
+ do { \
+ argv = &sparg[1]; \
+ argc = *(int *)sparg; \
+ envp = &argv[argc + 1]; \
+ } while (0)
+
+#define CALL_WITH_SP(fn, sp) \
+ do { \
+ register long __sp = (long) sp, __fn = (long) fn; \
+ asm volatile ("mr 1, %0; mtlr %1; blr" \
+ : : "r" (__sp), "r" (__fn)); \
+ } while (0)
+
+#define STACK_GROWTH_DOWN
+
+#define RETURN_TO(sp, pc, retval) \
+ asm volatile ("mr 1, %0; mtctr %1; mr 3, %2; bctr" \
+ : : "r" (sp), "r" (pc), "r" (retval))
+
+/* Get the machine-independent Mach definitions. */
+#include <sysdeps/mach/sysdep.h>
+
+#undef ENTRY
+#include <sysdeps/unix/sysdep.h>
+#include <sysdeps/powerpc/elf/sysdep.h>
+
+#endif /* _MACH_POWERPC_SYSDEP_H */
--- /dev/null
+/* Mach thread state definitions for machine-independent code. PowerPC version
+ Copyright (C) 2001 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. */
+
+#include <mach/machine/thread_status.h>
+
+#define MACHINE_THREAD_STATE_FLAVOR PPC_THREAD_STATE
+#define MACHINE_THREAD_STATE_COUNT PPC_THREAD_STATE_COUNT
+
+#define machine_thread_state ppc_thread_state
+
+#define PC srr0
+#define SP r1
+#define SYSRETURN r3
+
+struct machine_thread_all_state
+ {
+ int set; /* Mask of bits (1 << FLAVOR). */
+ struct ppc_thread_state basic;
+ struct ppc_exception_state exc;
+ struct ppc_float_state fpu;
+ };
+
+#include <sysdeps/mach/thread_state.h>
+++ /dev/null
-/* Copyright (C) 1997, 1998, 1999 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. */
-
-#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 struct sigcontext 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 */
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