Hi Vineet, Vineet Gupta wrote,
Currently crt1 takes address of functions (main,_init,_fini) directly which doesn't generate truely position independent code, but zero based values instead. e.g.
| __start: | ... | add_s r2,sp,0x4 | mov_s r0, main
generates to
| 000156ec <__start>: | ... | 156f4: add_s r2,sp,0x4 | 156f6: mov_s r0,0x15f7c | ... | 00015f7c <main>: | 15f7c: push_s blink
This works just fine for the normal (non PIE) dynamic executables since they are loaded at address 0. However this is not true for PIE executables. So for Scrt1 we use a true position independent way when taking function addresses.
Cc: uclibc@uclibc.org <uclibc@uclibc.org> Cc: devel@uclibc-ng.org <devel@uclibc-ng.org> Cc: Cupertino Miranda <cmiranda@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com> --- libc/sysdeps/linux/arc/crt1.S | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
Applied and pushed, thx Waldemar