mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
259364adb8
The linker relaxation logic will be:
Code sequence I (tiny):
0x00 adr x0, :tlsldm:x
0x04 bl __tls_get_addr
|
V
0x00 mrs x0, tpidr_el0
0x04 add x0, x0, TCB_SIZE
Code sequence II (small):
0x00 adrp a0, :tlsldm:x
0x04 add a0, #:tlsldm_lo12:x
0x08 bl __tls_get_addr
|
V
0x00 mrs x0, tpidr_el0
0x04 add x0, x0, TCB_SIZE
0x08 nop
2015-09-09 Jiong Wang <jiong.wang@arm.com>
bfd/
* elfnn-aarch64.c (aarch64_tls_transition_without_check): Support
three TLS local dynamic traditional relocations types.
(elfNN_aarch64_tls_relax): Support TLS local dynamic traditional to
local executable relaxation.
ld/testsuite/
* ld-aarch64/tls-relax-ld-le-tiny.s: New testcase.
* ld-aarch64/tls-relax-ld-le-small.s: Likewise.
* ld-aarch64/tls-relax-ld-le-tiny.d: New expectation file.
* ld-aarch64/tls-relax-ld-le-small.d: Likewise.
* ld-aarch64/aarch64-elf.exp: Run new testcases.
28 lines
560 B
ArmAsm
28 lines
560 B
ArmAsm
.cpu generic+fp+simd
|
|
.section .text.startup,"ax",%progbits
|
|
.align 2
|
|
.p2align 3,,7
|
|
.global main
|
|
.type main, %function
|
|
main:
|
|
add x29, sp, 0
|
|
adrp x0, :tlsldm:global_a0
|
|
add x0, x0, #:tlsldm_lo12_nc:global_a0
|
|
bl __tls_get_addr
|
|
nop
|
|
add x1, x0, #:dtprel_hi12:global_a0, lsl #12
|
|
add x1, x1, #:dtprel_lo12_nc:global_a0
|
|
adrp x0, .LC0
|
|
ret
|
|
.size main, .-main
|
|
.section .rodata.str1.8,"aMS",%progbits,1
|
|
.align 3
|
|
.LC0:
|
|
.string "Hello world %d\n"
|
|
.section .tdata,"awT",%progbits
|
|
.align 2
|
|
.type global_a0, %object
|
|
.size global_a0, 4
|
|
global_a0:
|
|
.word 16
|