[uclibc-ng-devel] [PATCH 14/32] [ARM][FDPIC] arm/clone.S: Fix threading support

Change clone.S so that in FDPIC case we take into account the fact that we are given a function descriptor. * libc/sysdeps/linux/arm/clone.S (__clone): Support __FDPIC__. Signed-off-by: Mickaël Guêné <mickael.guene(a)st.com> Signed-off-by: Christophe Lyon <christophe.lyon(a)st.com> diff --git a/libc/sysdeps/linux/arm/clone.S b/libc/sysdeps/linux/arm/clone.S index 8ca50fc..eacf3db 100644 --- a/libc/sysdeps/linux/arm/clone.S +++ b/libc/sysdeps/linux/arm/clone.S @@ -130,8 +130,20 @@ PSEUDO_END (__clone) .cantunwind @ pick the function arg and call address off the stack and execute ldr r0, [sp, #4] +#if defined(__FDPIC__) + ldr r12, [sp] + mov r4, r9 + ldr r9, [r12, #4] + mov lr, pc + ldr pc, [r12] +#else mov lr, pc ldr pc, [sp] +#endif + +#if defined(__FDPIC__) + mov r9, r4 +#endif @ and we are done, passing the return value through r0 b HIDDEN_JUMPTARGET(_exit) -- 2.6.3