optimize i386 ___tls_get_addr asm

diff --git a/src/thread/i386/tls.s b/src/thread/i386/tls.s
index e1f22629a9096a2b730ce0d2459bf3769e63bdac..6e01adf244a4c8da74decab12d8f433de9ebfbed 100644 (file)
--- a/src/thread/i386/tls.s
+++ b/src/thread/i386/tls.s
@@ -2,7 +2,14 @@
 .global ___tls_get_addr
 .type ___tls_get_addr,@function
 ___tls_get_addr:
-       push %eax
+       mov %gs:4,%edx
+       mov (%eax),%ecx
+       cmp %ecx,(%edx)
+       jc 1f
+       mov 4(%eax),%eax
+       add (%edx,%ecx,4),%eax
+       ret
+1:     push %eax
        call __tls_get_addr
        pop %edx
        ret