diff options
Diffstat (limited to 'bfd/elfxx-aarch64.h')
| -rw-r--r-- | bfd/elfxx-aarch64.h | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/bfd/elfxx-aarch64.h b/bfd/elfxx-aarch64.h index 506f4a9..bd3642c 100644 --- a/bfd/elfxx-aarch64.h +++ b/bfd/elfxx-aarch64.h @@ -129,13 +129,38 @@ typedef enum ERRAT_ADRP = (1 << 2), /* Erratum workarounds using ADRP are allowed. */ } erratum_84319_opts; +/* An enum to define the various modes of MTE operation. + At this time, except AARCH64_MEMTAG_MODE_NONE, the enumerator constants are + the same as specified in the Memtag ABI Extension to ELF for the Arm 64-bit + Architecture (AArch64) document (the intent being that this keeps the + emission of the associated dynamic tag simple).*/ +typedef enum +{ + AARCH64_MEMTAG_MODE_SYNC = 0, + AARCH64_MEMTAG_MODE_ASYNC = 1, + AARCH64_MEMTAG_MODE_NONE = 2, +} aarch64_memtag_mode_type; + +/* A structure to encompass all information about memtag feature related + command line options. */ +struct aarch64_memtag_opts +{ + /* Mode of MTE operation. */ + aarch64_memtag_mode_type memtag_mode; + + /* Whether stack accesses use MTE insns. */ + unsigned int memtag_stack; +}; + +typedef struct aarch64_memtag_opts aarch64_memtag_opts; + extern void bfd_elf64_aarch64_set_options (bfd *, struct bfd_link_info *, int, int, int, int, erratum_84319_opts, int, - const aarch64_protection_opts *); + const aarch64_protection_opts *, const aarch64_memtag_opts *); extern void bfd_elf32_aarch64_set_options (bfd *, struct bfd_link_info *, int, int, int, int, erratum_84319_opts, int, - const aarch64_protection_opts *); + const aarch64_protection_opts *, const aarch64_memtag_opts *); /* AArch64 stub generation support for ELF64. Called from the linker. */ extern int elf64_aarch64_setup_section_lists |