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Support for Mach/PowerPC contributed by Peter Bruin <pjbruin@dds.nl>.

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* 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.
This commit is contained in:
Roland McGrath 2001-10-29 04:39:05 +00:00
parent ab0a3efc49
commit d3b82fcc5f
8 changed files with 177 additions and 52 deletions
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12
ChangeLog
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@ -1,5 +1,17 @@
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):

25
sysdeps/generic/sys/ucontext.h
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@ -1,4 +1,5 @@
/* 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
@ -16,9 +17,29 @@
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 */

10
sysdeps/mach/hurd/Makefile
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@ -182,6 +182,16 @@ link-libc-static := $(link-libc) -Wl,-\( \
libc mach/libmachuser hurd/libhurduser) \
$(gnulib) -Wl,-\)
endif
endif
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
ifeq (hurd, $(subdir))

9
sysdeps/mach/hurd/i386/Makefile
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@ -1,9 +0,0 @@
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

42
sysdeps/mach/powerpc/machine-sp.h Normal file
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@ -0,0 +1,42 @@
/* 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 */

51
sysdeps/mach/powerpc/sysdep.h Normal file
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@ -0,0 +1,51 @@
/* 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 */

39
sysdeps/mach/powerpc/thread_state.h Normal file
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@ -0,0 +1,39 @@
/* 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>

41
sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h
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@ -1,41 +0,0 @@
/* 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 */