diff options
Diffstat (limited to 'bfd/bfd-in2.h')
| -rw-r--r-- | bfd/bfd-in2.h | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h index e25da50..33a2940 100644 --- a/bfd/bfd-in2.h +++ b/bfd/bfd-in2.h @@ -1002,11 +1002,45 @@ extern void bfd_elf64_aarch64_init_maps extern void bfd_elf32_aarch64_init_maps (bfd *); +/* Types of PLTs based on the level of security. This would be a + bit-mask to denote which of the combinations of security features + are enabled: + - No security feature PLTs + - PLTs with BTI instruction + - PLTs with PAC instruction +*/ +typedef enum +{ + PLT_NORMAL = 0x0, /* Normal plts. */ + PLT_BTI = 0x1, /* plts with bti. */ + PLT_PAC = 0x2, /* plts with pointer authentication. */ + PLT_BTI_PAC = PLT_BTI | PLT_PAC +} aarch64_plt_type; + +/* To indicate if BTI is enabled with/without warning. */ +typedef enum +{ + BTI_NONE = 0, /* BTI is not enabled. */ + BTI_WARN = 1, /* BTI is enabled with --force-bti. */ +} aarch64_enable_bti_type; + +/* A structure to encompass all information coming from BTI or PAC + related command line options. This involves the "PLT_TYPE" to determine + which version of PLTs to pick and "BTI_TYPE" to determine if + BTI should be turned on with any warnings. */ +typedef struct +{ + aarch64_plt_type plt_type; + aarch64_enable_bti_type bti_type; +} aarch64_bti_pac_info; + extern void bfd_elf64_aarch64_set_options - (bfd *, struct bfd_link_info *, int, int, int, int, int, int); + (bfd *, struct bfd_link_info *, int, int, int, int, int, int, + aarch64_bti_pac_info); extern void bfd_elf32_aarch64_set_options - (bfd *, struct bfd_link_info *, int, int, int, int, int, int); + (bfd *, struct bfd_link_info *, int, int, int, int, int, int, + aarch64_bti_pac_info); /* ELF AArch64 mapping symbol support. */ #define BFD_AARCH64_SPECIAL_SYM_TYPE_MAP (1 << 0) |