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authorGravatar Denis Vlasenko <vda.linux@googlemail.com>2008-06-27 02:52:20 +0000
committerGravatar Denis Vlasenko <vda.linux@googlemail.com>2008-06-27 02:52:20 +0000
commitdefc1ea34074e7882724c460260d307cdf981a70 (patch)
treefca9b9a5fe243f9c0c76b84824ea2ff92ea8e589 /include/platform.h
parent26bc57d8b26425f23f4be974cce7bf35c95c9a1a (diff)
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*: introduce and use FAST_FUNC: regparm on i386, otherwise no-on
text data bss dec hex filename 808035 611 6868 815514 c719a busybox_old 804472 611 6868 811951 c63af busybox_unstripped
Diffstat (limited to 'include/platform.h')
-rw-r--r--include/platform.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/platform.h b/include/platform.h
index cdc1151ad..8d6ed9a3e 100644
--- a/include/platform.h
+++ b/include/platform.h
@@ -97,6 +97,13 @@
# endif
#endif
+#if __GNUC_PREREQ(3,0) && defined(i386)
+/* || defined(__x86_64__)? */
+# define FAST_FUNC __attribute__((regparm(3)))
+#else
+# define FAST_FUNC
+#endif
+
/* ---- Endian Detection ------------------------------------ */
#if (defined __digital__ && defined __unix__)