[BUG] cannot find GOT entry for '0xb0' for two type of TLS reference

[zhengchuan-salut]

There maybe not support for two type of TLS reference which causes make patch failure.

1. Global TLS variable reference A simple sample is that we changed code in tls_shared as follow: cat libtls_shared.c #include <stdio.h>

__thread int tls_abc = 10;

void print_second_greetings(void) { tls_abc = 10; printf("Hello from UNPATCHED shared library\n"); }

void print_third_greetings(void) { printf("Hello from PATCHED shared library!\n"); }

void print_greetings(void) { print_second_greetings(); }

IIUC, the GOT offset should be the same as static global TLS variable. However, the code as follow seems not vaild: if (ELF64_R_SYM(rela->r_info) == 0 && rela->r_addend == tls_offset) return rela->r_offset;

2. Global TLS variable reference which is reference as extern and defined in other c file A simple sample is that we changed code in tls_simple as follow:

`tls_simple.c: #include <stdio.h> #include <time.h> #include <stdlib.h> #include <my.h>

int *p;

void print_greetings(void) { printf("TLS UNPATCHED\n"); }

int main() { v = 0xDEADBEAF; p = &v;

while (1) {
	print_greetings();
	sleep(1);
}
return 0;

}

my.h extern __thread v;

my.c: #include <stdio.h>

__thread v = 0;`

Since TLS variable finish relocations in static link, the .rela.dyn should not include TLS variable. As for now, libcare still to do --rel-fixup and find this TLS variable in relocation table which results in make patch failure. IIUC, we should just simply not to do --rel-fixup as same as R_X86_64_TPOFF32?