binutils-gdb/aarch64_tlsdesc.s at 95904ac43c21694a609b4b8016b7fdfe8c2fc0fb - binutils-gdb - Collaboration & Inovation

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Igor Kudrin cefdd1cd64 Fix bad offset calculation for R_AARCH64_TLSDESC_* relocs.

If a custom linker script with an unexpected relative layout of .got
and .got.plt sections was used, gold might produce a wrong offset
when applying R_AARCH64_TLSDESC_* relocations.
This patch fixes the issue by calculating "got_tlsdesc_offset"
in a more direct way.

gold/
	* aarch64.cc (Target_aarch64::Relocate::relocate_tls):
	Make got_tlsdesc_offset signed and fix its calculation.
	* testsuite/Makefile.am (aarch64_tlsdesc): New test.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/aarch64_tlsdesc.s: New test source file.
	* testsuite/aarch64_tlsdesc.sh: New test script.
	* testsuite/aarch64_tlsdesc.t: New test linker script.

2017-08-28 08:03:00 -07:00

13 lines

277 B

ArmAsm

Raw Blame History

         .global test, var
         .text
 test:
         adrp    x0, :tlsdesc:var
         ldr     x1, [x0, :tlsdesc_lo12:var]
         add     x0, x0, :tlsdesc_lo12:var
         .tlsdesccall var
         blr     x1
         .section        .tbss,"awT",%nobits
 var:
         .zero   4