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| author | Jiong Wang <jiong.wang@arm.com> | 2015-09-09 14:19:28 +0100 |
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| committer | Jiong Wang <jiong.wang@arm.com> | 2015-09-09 14:19:28 +0100 |
| commit | 259364adb8ced6dc0e3ae5bec2c6f76ec3faf955 (patch) | |
| tree | 627eebda6b2a1f5890f871f441fcba76315ac9a4 /ld/testsuite/ld-aarch64/tls-relax-ld-le-tiny.s | |
| parent | d660d56578248bf3bb56150295cecc763f112061 (diff) | |
| download | gdb-259364adb8ced6dc0e3ae5bec2c6f76ec3faf955.zip gdb-259364adb8ced6dc0e3ae5bec2c6f76ec3faf955.tar.gz gdb-259364adb8ced6dc0e3ae5bec2c6f76ec3faf955.tar.bz2 | |
[AArch64] Relax TLS local dynamic traditional into local executable
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.
Diffstat (limited to 'ld/testsuite/ld-aarch64/tls-relax-ld-le-tiny.s')
| -rw-r--r-- | ld/testsuite/ld-aarch64/tls-relax-ld-le-tiny.s | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/ld/testsuite/ld-aarch64/tls-relax-ld-le-tiny.s b/ld/testsuite/ld-aarch64/tls-relax-ld-le-tiny.s new file mode 100644 index 0000000..2336f69 --- /dev/null +++ b/ld/testsuite/ld-aarch64/tls-relax-ld-le-tiny.s @@ -0,0 +1,26 @@ + .cpu generic+fp+simd + .section .text.startup,"ax",%progbits + .align 2 + .p2align 3,,7 + .global main + .type main, %function +main: + add x29, sp, 0 + adr x0, :tlsldm: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 |