Commit f5ec6279a4698a8752093247a500cf76096ff157

Anthony Green 2015-03-04T13:58:04

Merge pull request #178 from rth7680/aa64-ilp32 aarch64: Handle ILP32 ABI

diff --git a/src/aarch64/ffitarget.h b/src/aarch64/ffitarget.h
index fca2811..2862ec7 100644
--- a/src/aarch64/ffitarget.h
+++ b/src/aarch64/ffitarget.h
@@ -27,8 +27,14 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
 #endif
 
 #ifndef LIBFFI_ASM
+#ifdef __ILP32__
+#define FFI_SIZEOF_ARG 8
+typedef unsigned long long ffi_arg;
+typedef signed long long ffi_sarg;
+#else
 typedef unsigned long ffi_arg;
 typedef signed long ffi_sarg;
+#endif
 
 typedef enum ffi_abi
   {
diff --git a/src/aarch64/sysv.S b/src/aarch64/sysv.S
index 46f50b9..c1bf9b9 100644
--- a/src/aarch64/sysv.S
+++ b/src/aarch64/sysv.S
@@ -45,6 +45,18 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
 # define BE(X)	0
 #endif
 
+#ifdef __ILP32__
+#define PTR_REG(n)      w##n
+#else
+#define PTR_REG(n)      x##n
+#endif
+
+#ifdef __ILP32__
+#define PTR_SIZE	4
+#else
+#define PTR_SIZE	8
+#endif
+
 	.text
 	.align 4
 
@@ -248,8 +260,8 @@ CNAME(ffi_closure_SYSV):
 	stp     x6, x7, [sp, #16 + 16*N_V_ARG_REG + 48]
 
 	/* Load ffi_closure_inner arguments.  */
-	ldp	x0, x1, [x17, #FFI_TRAMPOLINE_CLOSURE_OFFSET]	/* load cif, fn */
-	ldr	x2, [x17, #FFI_TRAMPOLINE_CLOSURE_OFFSET+16]	/* load user_data */
+	ldp	PTR_REG(0), PTR_REG(1), [x17, #FFI_TRAMPOLINE_CLOSURE_OFFSET]	/* load cif, fn */
+	ldr	PTR_REG(2), [x17, #FFI_TRAMPOLINE_CLOSURE_OFFSET+PTR_SIZE*2]	/* load user_data */
 .Ldo_closure:
 	add	x3, sp, #16				/* load context */
 	add	x4, sp, #ffi_closure_SYSV_FS		/* load stack */
@@ -403,7 +415,7 @@ CNAME(ffi_go_closure_SYSV):
 	stp     x6, x7, [sp, #16 + 16*N_V_ARG_REG + 48]
 
 	/* Load ffi_closure_inner arguments.  */
-	ldp	x0, x1, [x18, #8]			/* load cif, fn */
+	ldp	PTR_REG(0), PTR_REG(1), [x18, #PTR_SIZE]/* load cif, fn */
 	mov	x2, x18					/* load user_data */
 	b	.Ldo_closure
 	cfi_endproc