Author: andreast
Date: Wed Nov 16 21:22:51 2011
New Revision: 227586
URL: http://svn.freebsd.org/changeset/base/227586
Log:
Copy over the ASM_DECLARE_FUNCTION_SIZE macro from linux64.h. This macro
declares the proper size of a function. Without this macro recent GNU as will
complain about with:
'Error: .size expression for main does not evaluate to a constant.'
Up to now we produce this:
.L.main:
....
.size main, .-main
With the macro defined the output is this:
.L.main:
....
.size main,.-.L.main
This affects only the 64-bit compiler.
Tested with world and kernel on both, 32 and 64-bit powerpc.
Modified:
head/contrib/gcc/config/rs6000/freebsd.h
Modified: head/contrib/gcc/config/rs6000/freebsd.h
==============================================================================
--- head/contrib/gcc/config/rs6000/freebsd.h Wed Nov 16 20:18:25 2011
(r227585)
+++ head/contrib/gcc/config/rs6000/freebsd.h Wed Nov 16 21:22:51 2011
(r227586)
@@ -253,3 +253,22 @@ extern int dot_symbols;
#undef NEED_INDICATE_EXEC_STACK
#define NEED_INDICATE_EXEC_STACK 1
+
+/* This is how to declare the size of a function. */
+#undef ASM_DECLARE_FUNCTION_SIZE
+#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
+ do \
+ { \
+ if (!flag_inhibit_size_directive) \
+ { \
+ fputs ("\t.size\t", (FILE)); \
+ if (TARGET_64BIT && DOT_SYMBOLS) \
+ putc ('.', (FILE)); \
+ assemble_name ((FILE), (FNAME)); \
+ fputs (",.-", (FILE)); \
+ rs6000_output_function_entry (FILE, FNAME); \
+ putc ('\n', (FILE)); \
+ } \
+ } \
+ while (0)
+
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