fix breakage in x32 dynamic linker due to mismatching register size

the jmp instruction requires a 64-bit register, so cast the desired PC
address up to uint64_t, going through uintptr_t to ensure that it's
zero-extended rather than possibly sign-extended.

diff --git a/arch/x32/reloc.h b/arch/x32/reloc.h
index 7c72d266201df60a28cc7a2c1f3066ca93651641..574f44a777227fa9d0faf3e948a8e4838772651f 100644 (file)
--- a/arch/x32/reloc.h
+++ b/arch/x32/reloc.h
@@ -23,4 +23,4 @@
 #define REL_TPOFF       R_X86_64_TPOFF64
 
 #define CRTJMP(pc,sp) __asm__ __volatile__( \
-       "mov %1,%%esp ; jmp *%0" : : "r"(pc), "r"(sp) : "memory" )
+       "mov %1,%%esp ; jmp *%0" : : "r"((uint64_t)(uintptr_t)pc), "r"(sp) : "memory" )