PowerPC macros

From-SVN: r10645

diff --git a/gcc/ginclude/ppc-asm.h b/gcc/ginclude/ppc-asm.h
new file mode 100644 (file)
index 0000000..383f4c2
--- /dev/null
+++ b/gcc/ginclude/ppc-asm.h
@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 1995 Cygnus Support
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+
+#define r0     0
+#define sp     1
+#define toc    2
+#define r3     3
+#define r4     4
+#define r5     5
+#define r6     6
+#define r7     7
+#define r8     8
+#define r9     9
+#define r10    10
+#define r11    11
+#define r12    12
+#define r13    13
+#define r14    14
+#define r15    15
+#define r16    16
+#define r17    17
+#define r18    18
+#define r19     19
+#define r20    20
+#define r21    21
+#define r22    22
+#define r23    23
+#define r24    24
+#define r25    25
+#define r26    26
+#define r27    27
+#define r28    28
+#define r29    29
+#define r30    30
+#define r31    31
+
+/*
+ * Macros to glue together two tokens.
+ */
+
+#ifdef __STDC__
+#define XGLUE(a,b) a##b
+#else
+#define XGLUE(a,b) a/**/b
+#endif
+
+#define GLUE(a,b) XGLUE(a,b)
+
+/*
+ * Macros to begin and end a function written in assembler.  If -mcall-aixdesc
+ * or -mcall-nt, create a function descriptor with the given name, and create
+ * the real function with one or two leading periods respectively.
+ */
+
+#ifdef _RELOCATABLE
+#define DESC_SECTION ".got2"
+#else
+#define DESC_SECTION ".got1"
+#endif
+
+#if defined(_CALL_AIXDESC)
+#define FUNC_NAME(name) GLUE(.,name)
+#define FUNC_START(name) \
+       .section DESC_SECTION,"aw"; \
+name: \
+       .long GLUE(.,name); \
+       .long _GLOBAL_OFFSET_TABLE_; \
+       .long 0; \
+       .previous; \
+       .type GLUE(.,name),@function; \
+       .globl name; \
+       .globl GLUE(.,name); \
+GLUE(.,name):
+
+#define FUNC_END(name) \
+GLUE(.L,name): \
+       .size GLUE(.,name),GLUE(.L,name)-GLUE(.,name)
+
+#elif defined(__WINNT__)
+#define FUNC_NAME(name) GLUE(..,name)
+#define FUNC_START(name) \
+       .pdata; \
+       .align 2; \
+       .ualong GLUE(..,name),GLUE(name,.e),0,0,GLUE(..,name); \
+       .reldata; \
+name: \
+       .ualong GLUE(..,name),.toc; \
+       .section .text; \
+       .globl name; \
+       .globl GLUE(..,name); \
+GLUE(..,name):
+
+#define FUNC_END(name) \
+GLUE(name,.e): ; \
+GLUE(FE_MOT_RESVD..,name):
+
+#elif defined(_CALL_NT)
+#define FUNC_NAME(name) GLUE(..,name)
+#define FUNC_START(name) \
+       .section DESC_SECTION,"aw"; \
+name: \
+       .long GLUE(..,name); \
+       .long _GLOBAL_OFFSET_TABLE_; \
+       .previous; \
+       .type GLUE(..,name),@function; \
+       .globl name; \
+       .globl GLUE(..,name); \
+GLUE(..,name):
+
+#define FUNC_END(name) \
+GLUE(.L,name): \
+       .size GLUE(..,name),GLUE(.L,name)-GLUE(..,name)
+
+#else
+#define FUNC_NAME(name) name
+#define FUNC_START(name) \
+       .type name,@function; \
+       .globl name; \
+name:
+
+#define FUNC_END(name) \
+GLUE(.L,name): \
+       .size name,GLUE(.L,name)-name
+#endif
+