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| author | Ole André Vadla Ravnås <oleavr@gmail.com> | 2020-03-10 02:05:42 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-03-09 21:05:42 -0400 |
| commit | 4c7bde32ea3af479babdf527d94f241282951cb9 (patch) | |
| tree | e3e69f65c1bc15d5673954de929a12dd7b34c3ff /src/aarch64 | |
| parent | 211e929df4388a6724b0dba4df4e3a1283dc49e9 (diff) | |
| download | libffi-4c7bde32ea3af479babdf527d94f241282951cb9.tar.gz | |
Port to iOS/arm64e (#548)
Diffstat (limited to 'src/aarch64')
| -rw-r--r-- | src/aarch64/ffi.c | 6 | ||||
| -rw-r--r-- | src/aarch64/sysv.S | 15 |
2 files changed, 19 insertions, 2 deletions
diff --git a/src/aarch64/ffi.c b/src/aarch64/ffi.c index 1ebf43c..4cc5925 100644 --- a/src/aarch64/ffi.c +++ b/src/aarch64/ffi.c @@ -62,6 +62,9 @@ struct call_context #if FFI_EXEC_TRAMPOLINE_TABLE #ifdef __MACH__ +#ifdef HAVE_PTRAUTH +#include <ptrauth.h> +#endif #include <mach/vm_param.h> #endif @@ -789,6 +792,9 @@ ffi_prep_closure_loc (ffi_closure *closure, #if FFI_EXEC_TRAMPOLINE_TABLE #ifdef __MACH__ +#ifdef HAVE_PTRAUTH + codeloc = ptrauth_strip (codeloc, ptrauth_key_asia); +#endif void **config = (void **)((uint8_t *)codeloc - PAGE_MAX_SIZE); config[0] = closure; config[1] = start; diff --git a/src/aarch64/sysv.S b/src/aarch64/sysv.S index 6761ee1..a345439 100644 --- a/src/aarch64/sysv.S +++ b/src/aarch64/sysv.S @@ -58,6 +58,14 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #define PTR_SIZE 8 #endif +#if FFI_EXEC_TRAMPOLINE_TABLE && defined(__MACH__) && defined(HAVE_PTRAUTH) +# define BR(r) braaz r +# define BLR(r) blraaz r +#else +# define BR(r) br r +# define BLR(r) blr r +#endif + .text .align 4 @@ -111,7 +119,7 @@ CNAME(ffi_call_SYSV): /* Deallocate the context, leaving the stacked arguments. */ add sp, sp, #CALL_CONTEXT_SIZE - blr x9 /* call fn */ + BLR(x9) /* call fn */ ldp x3, x4, [x29, #16] /* reload rvalue and flags */ @@ -271,6 +279,9 @@ CNAME(ffi_closure_SYSV): bl CNAME(ffi_closure_SYSV_inner) /* Load the return value as directed. */ +#if FFI_EXEC_TRAMPOLINE_TABLE && defined(__MACH__) && defined(HAVE_PTRAUTH) + autiza x1 +#endif adr x1, 0f and w0, w0, #AARCH64_RET_MASK add x1, x1, x0, lsl #3 @@ -365,7 +376,7 @@ CNAME(ffi_closure_trampoline_table_page): .rept PAGE_MAX_SIZE / FFI_TRAMPOLINE_SIZE adr x16, -PAGE_MAX_SIZE ldp x17, x16, [x16] - br x16 + BR(x16) nop /* each entry in the trampoline config page is 2*sizeof(void*) so the trampoline itself cannot be smaller that 16 bytes */ .endr |