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authorRoland McGrath <roland@gnu.org>2002-09-20 23:46:03 +0000
committerRoland McGrath <roland@gnu.org>2002-09-20 23:46:03 +0000
commitb80a3db02e5163f5af236df7cce78bd65e8c6941 (patch)
treec3de7e027886be6c1fb6037314c2b95c320ac051 /sysdeps/powerpc/powerpc32/sysdep.h
parent7f4dce05c20b5461582a729ef64f26ecc93f365e (diff)
downloadglibc-b80a3db02e5163f5af236df7cce78bd65e8c6941.tar.gz
* sysdeps/powerpc/sysdep.h: Remove powerpc32 specific macros.
* sysdeps/powerpc/powerpc32/sysdep.h: New file. Define powerpc32 specific macros copied from sysdeps/powerpc/sysdep.h. * sysdeps/powerpc/powerpc64/sysdep.h: New file. Define powerpc64 specific macros. * sysdeps/unix/powerpc/sysdep.h: Include <bits/wordsize.h>. [__WORDSIZE==64]: Include sysdeps/powerpc/powerpc64/sysdep.h. [!__WORDSIZE==64]: Include sysdeps/powerpc/powerpc32/sysdep.h.
Diffstat (limited to 'sysdeps/powerpc/powerpc32/sysdep.h')
-rw-r--r--sysdeps/powerpc/powerpc32/sysdep.h136
1 files changed, 136 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc32/sysdep.h b/sysdeps/powerpc/powerpc32/sysdep.h
new file mode 100644
index 0000000000..9179746790
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/sysdep.h
@@ -0,0 +1,136 @@
+/* Assembly macros for 32-bit PowerPC.
+ Copyright (C) 1999, 2001, 2002 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. */
+
+#ifdef __ASSEMBLER__
+
+#include <sysdeps/powerpc/sysdep.h>
+
+#ifdef __ELF__
+
+/* 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 /* __ELF__ */
+
+#endif /* __ASSEMBLER__ */