PERFORCE change 132343 for review

[Warner Losh]

http://perforce.freebsd.org/chv.cgi?CH=132343

Change 132343 by imp at imp_paco-paco on 2008/01/02 22:25:19

	More asm macros.

Affected files ...

.. //depot/projects/mips2-jnpr/src/sys/mips/include/asm.h#5 edit

Differences ...

==== //depot/projects/mips2-jnpr/src/sys/mips/include/asm.h#5 (text+ko) ====

@@ -142,6 +142,59 @@
 #endif /* __ELF__ */
 
 /*
+ * These are temp registers whose names can be used in either the old
+ * or new ABI, although they map to different physical registers.  In
+ * the old ABI, they map to t4-t7, and in the new ABI, they map to a4-a7.
+ *
+ * Because they overlap with the last 4 arg regs in the new ABI, ta0-ta3
+ * should be used only when we need more than t0-t3.
+ */
+#if defined(__mips_n32) || defined(__mips_n64)
+#define ta0     $8
+#define ta1     $9
+#define ta2     $10
+#define ta3     $11
+#else
+#define ta0     $12
+#define ta1     $13
+#define ta2     $14
+#define ta3     $15
+#endif /* __mips_n32 || __mips_n64 */
+
+#ifdef __ELF__
+# define _C_LABEL(x)    x
+#else
+# ifdef __STDC__
+#  define _C_LABEL(x)   _ ## x
+# else
+#  define _C_LABEL(x)   _/**/x
+# endif
+#endif
+
+/*
+ * WEAK_ALIAS: create a weak alias.
+ */
+#define	WEAK_ALIAS(alias,sym)						\
+	.weak alias;							\
+	alias = sym
+
+/*
+ * STRONG_ALIAS: create a strong alias.
+ */
+#define STRONG_ALIAS(alias,sym)						\
+	.globl alias;							\
+	alias = sym
+
+#define	GLOBAL(sym)						\
+	.globl sym; sym:
+
+#define	ENTRY(sym)						\
+	.text; .globl sym; .ent sym; sym:
+
+#define	ASM_ENTRY(sym)						\
+	.text; .globl sym; .type sym, at function; sym:
+
+/*
  * LEAF
  *	A leaf routine does
  *	- call no other function,