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| author | Jim Wilson <jimw@sifive.com> | 2018-03-02 10:47:25 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2018-03-02 10:49:20 +0000 |
| commit | 9a2ebffd4dd9cffac395177e997f6f47408b4782 (patch) | |
| tree | b877a3c6e100f7c457d4215c69bf0aa93666b0cf /ld/emultempl | |
| parent | e7da50fa4b4f770240feda51ba60f6255073e54f (diff) | |
| download | gdb-9a2ebffd4dd9cffac395177e997f6f47408b4782.zip gdb-9a2ebffd4dd9cffac395177e997f6f47408b4782.tar.gz gdb-9a2ebffd4dd9cffac395177e997f6f47408b4782.tar.bz2 | |
Ensure 8-byte alignment for AArch64 stubs.
PR 22903
bfd * elfnn-aarch64.c (_bfd_aarch64_resize_stubs): Add 8 bytes for branch
and nop instead of 4.
(elfNN_arch64_build_stubs): Add nop after branch. Increase size by
8 instead of 4.
ld * emultempl/aarch64elf.em (elf${ELFSIZE}_aarch64_add_stub_section):
Give stub_sec 8 byte alignment.
* emulparams/aarch64cloudabi.sh (NOP): Set to 0x1f2003d5.
* emulparams/aarch64elf.sh (NOP): Likewise.
* emulparams/aarch64elf32.sh (NOP): Likewise.
* emulparams/aarch64fbsd.sh (NOP): Likewise.
* emulparams/aarch64linux.sh (NOP): Likewise.
* emulparams/aarch64linux32.sh (NOP): Likewise.
* testsuite/ld-aarch64/erratum835769.d: Adjust for added nop.
* testsuite/ld-aarch64/erratum843419.d: Likewise.
* testsuite/ld-aarch64/farcall-b-defsym.d: Likewise.
* testsuite/ld-aarch64/farcall-b-none-function.d: Likewise.
* testsuite/ld-aarch64/farcall-b-plt.d: Likewise.
* testsuite/ld-aarch64/farcall-b-section.d: Likewise.
* testsuite/ld-aarch64/farcall-b.d: Likewise.
* testsuite/ld-aarch64/farcall-back.d: Likewise.
* testsuite/ld-aarch64/farcall-bl-defsym.d: Likewise.
* testsuite/ld-aarch64/farcall-bl-none-function.d: Likewise.
* testsuite/ld-aarch64/farcall-bl-plt.d: Likewise.
* testsuite/ld-aarch64/farcall-bl-section.d: Likewise.
* testsuite/ld-aarch64/farcall-bl.d: Likewise.
Diffstat (limited to 'ld/emultempl')
| -rw-r--r-- | ld/emultempl/aarch64elf.em | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/ld/emultempl/aarch64elf.em b/ld/emultempl/aarch64elf.em index 34d03f3..fe0255c 100644 --- a/ld/emultempl/aarch64elf.em +++ b/ld/emultempl/aarch64elf.em @@ -174,7 +174,9 @@ elf${ELFSIZE}_aarch64_add_stub_section (const char *stub_sec_name, if (stub_sec == NULL) goto err_ret; - bfd_set_section_alignment (stub_file->the_bfd, stub_sec, 2); + /* Long branch stubs contain a 64-bit address, so the section requires + 8 byte alignment. */ + bfd_set_section_alignment (stub_file->the_bfd, stub_sec, 3); output_section = input_section->output_section; os = lang_output_section_get (output_section); |