diff options
Diffstat (limited to 'src/include/ipxe/efi/AArch64/ProcessorBind.h')
| -rw-r--r-- | src/include/ipxe/efi/AArch64/ProcessorBind.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/include/ipxe/efi/AArch64/ProcessorBind.h b/src/include/ipxe/efi/AArch64/ProcessorBind.h index d0cb86a4..3a7f7746 100644 --- a/src/include/ipxe/efi/AArch64/ProcessorBind.h +++ b/src/include/ipxe/efi/AArch64/ProcessorBind.h @@ -188,6 +188,40 @@ typedef INT64 INTN; #define GCC_ASM_IMPORT(func__) \ .extern _CONCATENATE (__USER_LABEL_PREFIX__, func__) + #if defined (__ARM_FEATURE_BTI_DEFAULT) && __ARM_FEATURE_BTI_DEFAULT == 1 +#define AARCH64_BTI_NOTE() \ + .ifndef .Lgnu_bti_notesize ;\ + .pushsection .note.gnu.property, "a" ;\ + .set NT_GNU_PROPERTY_TYPE_0, 0x5 ;\ + .set GNU_PROPERTY_AARCH64_FEATURE_1_AND, 0xc0000000 ;\ + .set GNU_PROPERTY_AARCH64_FEATURE_1_BTI, 0x1 ;\ + .align 3 ;\ + .long .Lnamesize ;\ + .long .Lgnu_bti_notesize ;\ + .long NT_GNU_PROPERTY_TYPE_0 ;\ +0: .asciz "GNU" ;\ + .set .Lnamesize, . - 0b ;\ + .align 3 ;\ +1: .long GNU_PROPERTY_AARCH64_FEATURE_1_AND ;\ + .long .Lvalsize ;\ +2: .long GNU_PROPERTY_AARCH64_FEATURE_1_BTI ;\ + .set .Lvalsize, . - 2b ;\ + .align 3 ;\ + .set .Lgnu_bti_notesize, . - 1b ;\ + .popsection ;\ + .endif + +#define AARCH64_BTI(__type) \ + AARCH64_BTI_NOTE() ;\ + bti __type + + #endif + +#endif + +#ifndef AARCH64_BTI +#define AARCH64_BTI_NOTE() +#define AARCH64_BTI(__type) #endif /** |