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authorDenys Vlasenko <vda.linux@googlemail.com>2010-04-06 05:29:26 +0200
committerDenys Vlasenko <vda.linux@googlemail.com>2010-04-06 05:29:26 +0200
commitd82f29cd593e371acb3a6f11656543cf2e6e2421 (patch)
tree433df3e8a590282fa9cbc80409412d755b8b834c /libc/sysdeps/Makefile.in
parenteefaf06888e3dcbc410b4cc2d231035f4400c7ac (diff)
i386/bits/syscalls.h: generate better code using more restrictive asm constraints
Example: time() doesn't push/pop two registers now, and is smaller: <__GI_time>: -57 push %edi -8b 7c 24 08 mov 0x8(%esp),%edi -53 push %ebx -89 fb mov %edi,%ebx +8b 4c 24 04 mov 0x4(%esp),%ecx +87 cb xchg %ecx,%ebx b8 0d 00 00 00 mov $0xd,%eax cd 80 int $0x80 -5b pop %ebx -5f pop %edi +87 cb xchg %ecx,%ebx c3 ret Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'libc/sysdeps/Makefile.in')
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