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Darwin/aarch64: Respect iOS ABI re: stack argument alignment

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This commit is contained in:
Zachary Waldowski
2014-01-09 13:53:30 -05:00
parent 0a333d6c39
commit 4330fdcd92
1 changed files with 15 additions and 0 deletions
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15
src/aarch64/ffi.c
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@@ -27,7 +27,11 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
#include <stdlib.h>
/* Stack alignment requirement in bytes */
#if defined (__APPLE__)
#define AARCH64_STACK_ALIGN 1
#else
#define AARCH64_STACK_ALIGN 16
#endif
#define N_X_ARG_REG 8
#define N_V_ARG_REG 8
@@ -148,11 +152,20 @@ get_basic_type_alignment (unsigned short type)
#endif
case FFI_TYPE_UINT8:
case FFI_TYPE_SINT8:
#if defined (__APPLE__)
return sizeof (UINT8);
#endif
case FFI_TYPE_UINT16:
case FFI_TYPE_SINT16:
#if defined (__APPLE__)
return sizeof (UINT16);
#endif
case FFI_TYPE_UINT32:
case FFI_TYPE_INT:
case FFI_TYPE_SINT32:
#if defined (__APPLE__)
return sizeof (UINT32);
#endif
case FFI_TYPE_POINTER:
case FFI_TYPE_UINT64:
case FFI_TYPE_SINT64:
@@ -461,7 +474,9 @@ allocate_to_stack (struct arg_state *state, void *stack, size_t alignment,
alignment of the argument's type. */
state->nsaa = ALIGN (state->nsaa, alignment);
state->nsaa = ALIGN (state->nsaa, alignment);
#if !defined (__APPLE__)
state->nsaa = ALIGN (state->nsaa, 8);
#endif
allocation = stack + state->nsaa;