Fix our x86 PIC_PROLOGUE.
The old definition only worked for functions that didn't use numbered
local labels. Upstream uses '666' not only as some kind of BSD in-joke,
but also because there's little likelihood of any function having
labels that high.
There's a wider question about whether we actually want to go via the
PLT at all in this code, but that's a question for another day.
Bug: 16906712
Change-Id: I3cd8ecc448b33f942bb6e783931808ef39091489
diff --git a/libc/arch-x86/include/machine/asm.h b/libc/arch-x86/include/machine/asm.h
index bf77525..672493d 100644
--- a/libc/arch-x86/include/machine/asm.h
+++ b/libc/arch-x86/include/machine/asm.h
@@ -39,10 +39,10 @@
#define PIC_PROLOGUE \
pushl %ebx; \
- call 1f; \
-1: \
+ call 666f; \
+666: \
popl %ebx; \
- addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ebx
+ addl $_GLOBAL_OFFSET_TABLE_+[.-666b], %ebx
#define PIC_EPILOGUE \
popl %ebx
#define PIC_PLT(x) x@PLT
