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authorGravatar Denis Vlasenko <vda.linux@googlemail.com>2007-08-12 20:58:27 +0000
committerGravatar Denis Vlasenko <vda.linux@googlemail.com>2007-08-12 20:58:27 +0000
commit6ca409e0e4c198fe3081346eebbae3f068fe605a (patch)
tree060cb05d99220a1eda399194d1209c269f0e8cd8 /include/platform.h
parent4185548984357df91311f30c8e43d95f33922576 (diff)
downloadbusybox-6ca409e0e4c198fe3081346eebbae3f068fe605a.tar.gz
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trylink: produce even more info about final link stage
trylink: explain how to modify link and drastically decrease amount of padding (unfortunately, needs hand editing ATM). *: add ALIGN1 / ALIGN2 to global strings and arrays of bytes and shorts size saving: 0.5k
Diffstat (limited to 'include/platform.h')
-rw-r--r--include/platform.h16
1 files changed, 13 insertions, 3 deletions
diff --git a/include/platform.h b/include/platform.h
index dcdb5c8f7..ff23ca18c 100644
--- a/include/platform.h
+++ b/include/platform.h
@@ -169,7 +169,7 @@ __extension__ typedef unsigned long long __u64;
# error "Sorry, this libc version is not supported :("
#endif
-// Don't perpetuate e2fsck crap into the headers. Clean up e2fsck instead.
+/* Don't perpetuate e2fsck crap into the headers. Clean up e2fsck instead. */
#if defined __GLIBC__ || defined __UCLIBC__ \
|| defined __dietlibc__ || defined _NEWLIB_VERSION
@@ -210,6 +210,16 @@ typedef unsigned smalluint;
#include <stdbool.h>
#endif
+/* Try to defeat gcc's alignment of "char message[]"-like data */
+#if 1 /* if needed: !defined(arch1) && !defined(arch2) */
+#define ALIGN1 __attribute__((aligned(1)))
+#define ALIGN2 __attribute__((aligned(2)))
+#else
+/* Arches which MUST have 2 or 4 byte alignment for everything are here */
+#define ALIGN1
+#define ALIGN2
+#endif
+
/* uclibc does not implement daemon() for no-mmu systems.
* For 0.9.29 and svn, __ARCH_USE_MMU__ indicates no-mmu reliably.
@@ -289,7 +299,7 @@ static ALWAYS_INLINE char* strchrnul(const char *s, char c)
#if defined(__linux__)
#include <sys/mount.h>
-// Make sure we have all the new mount flags we actually try to use.
+/* Make sure we have all the new mount flags we actually try to use. */
#ifndef MS_BIND
#define MS_BIND (1<<12)
#endif
@@ -303,7 +313,7 @@ static ALWAYS_INLINE char* strchrnul(const char *s, char c)
#define MS_SILENT (1<<15)
#endif
-// The shared subtree stuff, which went in around 2.6.15
+/* The shared subtree stuff, which went in around 2.6.15. */
#ifndef MS_UNBINDABLE
#define MS_UNBINDABLE (1<<17)
#endif