I found the htonl implemention in libc for i386 is not sync with the kern. sys use bswap for swaping the int. but libc still use xchg. IS THIS LOST?
Here is the patches.
----------------------------CUT HERE------------------------
--- /usr/src/lib/libc/i386/net/htonl.S.orig Sun May 2 12:13:13 2004
+++ /usr/src/lib/libc/i386/net/htonl.S Sun May 2 12:22:02 2004
@@ -46,7 +46,5 @@
.set CNAME(htonl),CNAME(__htonl)
ENTRY(__htonl)
movl 4(%esp),%eax
- xchgb %al,%ah
- roll $16,%eax
- xchgb %al,%ah
+ bswap %eax
ret
-----------------------------END HERE----------------------
----------------------------CUT HERE------------------------
--- /usr/src/lib/libc/i386/net/ntohl.S.orig Sun May 2 12:13:21 2004
+++ /usr/src/lib/libc/i386/net/ntohl.S Sun May 2 12:19:16 2004
@@ -46,7 +46,5 @@
.set CNAME(ntohl),CNAME(__ntohl)
ENTRY(__ntohl)
movl 4(%esp),%eax
- xchgb %al,%ah
- roll $16,%eax
- xchgb %al,%ah
+ bswap %eax
ret
-----------------------------END HERE----------------------
Sincerely,
Deng XueFeng
htonl.S.diff
Description: Binary data
ntohl.S.diff
Description: Binary data
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