* 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):
	Move all these assembly-related definitions to ...
	* sysdeps/powerpc/elf/sysdep.h: ... this new file.

	* sysdeps/mach/powerpc/machine-lock.h: Assembly code rewritten
	by Peter Bruin <pjbruin@dds.nl>.

1 files changed, 137 insertions, 0 deletions

diff --git a/sysdeps/powerpc/elf/sysdep.h b/sysdeps/powerpc/elf/sysdep.h
new file mode 100644
index 0000000000..b51adda6fa
--- /dev/null
+++ b/sysdeps/powerpc/elf/sysdep.h
@@ -0,0 +1,137 @@
+/* assembly code macros for ELF PowerPC hosts
+   Copyright (C) 1999,2001 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 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 <sysdeps/powerpc/sysdep.h>
+
+#ifdef __ASSEMBLER__
+
+/* This seems to always be the case on PPC.  */
+#define ALIGNARG(log2) log2
+/* For ELF we need the `.type' directive to make shared libs work right.  */
+#define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg;
+#define ASM_SIZE_DIRECTIVE(name) .size name,.-name
+
+/* If compiled for profiling, call `_mcount' at the start of each function.  */
+#ifdef	PROF
+/* The mcount code relies on a the return address being on the stack
+   to locate our caller and so it can restore it; so store one just
+   for its benefit.  */
+#ifdef PIC
+#define CALL_MCOUNT							      \
+  .pushsection;								      \
+  .section ".data";    							      \
+  .align ALIGNARG(2);							      \
+0:.long 0;								      \
+  .previous;								      \
+  mflr  r0;								      \
+  stw   r0,4(r1);	       						      \
+  bl    _GLOBAL_OFFSET_TABLE_@local-4;					      \
+  mflr  r11;								      \
+  lwz   r0,0b@got(r11);							      \
+  bl    JUMPTARGET(_mcount);
+#else  /* PIC */
+#define CALL_MCOUNT							      \
+  .section ".data";							      \
+  .align ALIGNARG(2);							      \
+0:.long 0;								      \
+  .previous;								      \
+  mflr  r0;								      \
+  lis   r11,0b@ha;		       					      \
+  stw   r0,4(r1);	       						      \
+  addi  r0,r11,0b@l;							      \
+  bl    JUMPTARGET(_mcount);
+#endif /* PIC */
+#else  /* PROF */
+#define CALL_MCOUNT		/* Do nothing.  */
+#endif /* PROF */
+
+#define	ENTRY(name)							      \
+  ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name);				      \
+  ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function)			      \
+  .align ALIGNARG(2);							      \
+  C_LABEL(name)								      \
+  CALL_MCOUNT
+
+#define EALIGN_W_0  /* No words to insert.  */
+#define EALIGN_W_1  nop
+#define EALIGN_W_2  nop;nop
+#define EALIGN_W_3  nop;nop;nop
+#define EALIGN_W_4  EALIGN_W_3;nop
+#define EALIGN_W_5  EALIGN_W_4;nop
+#define EALIGN_W_6  EALIGN_W_5;nop
+#define EALIGN_W_7  EALIGN_W_6;nop
+
+/* EALIGN is like ENTRY, but does alignment to 'words'*4 bytes
+   past a 2^align boundary.  */
+#ifdef PROF
+#define EALIGN(name, alignt, words)					      \
+  ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name);				      \
+  ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function)			      \
+  .align ALIGNARG(2);							      \
+  C_LABEL(name)								      \
+  CALL_MCOUNT								      \
+  b 0f;									      \
+  .align ALIGNARG(alignt);						      \
+  EALIGN_W_##words;							      \
+  0:
+#else /* PROF */
+#define EALIGN(name, alignt, words)					      \
+  ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name);				      \
+  ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function)			      \
+  .align ALIGNARG(alignt);						      \
+  EALIGN_W_##words;							      \
+  C_LABEL(name)
+#endif
+
+#undef	END
+#define END(name)							      \
+  ASM_SIZE_DIRECTIVE(name)
+
+#define DO_CALL(syscall)				      		      \
+    li 0,syscall;						              \
+    sc
+
+#ifdef PIC
+#define JUMPTARGET(name) name##@plt
+#else
+#define JUMPTARGET(name) name
+#endif
+
+#define PSEUDO(name, syscall_name, args)				      \
+  .section ".text";							      \
+  ENTRY (name)								      \
+    DO_CALL (SYS_ify (syscall_name));
+
+#define PSEUDO_RET							      \
+    bnslr;								      \
+    b JUMPTARGET(__syscall_error)
+#define ret PSEUDO_RET
+
+#undef	PSEUDO_END
+#define	PSEUDO_END(name)						      \
+  END (name)
+
+/* Local labels stripped out by the linker.  */
+#undef L
+#define L(x) .L##x
+
+/* Label in text section.  */
+#define C_TEXT(name) name
+
+#endif	/* __ASSEMBLER__ */