mirror of
https://github.com/partic2/libffi
synced 2026-11-10 10:07:19 +00:00
Undo iOS ARM64 changes.
This commit is contained in:
Anthony Green
+61
-38
@@ -1,8 +1,8 @@
|
||||
/* -----------------------------------------------------------------------
|
||||
sysv.S - Copyright (c) 1998, 2008, 2011 Red Hat, Inc.
|
||||
Copyright (c) 2011 Plausible Labs Cooperative, Inc.
|
||||
|
||||
ARM Foreign Function Interface
|
||||
|
||||
ARM Foreign Function Interface
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining
|
||||
a copy of this software and associated documentation files (the
|
||||
@@ -25,7 +25,7 @@
|
||||
DEALINGS IN THE SOFTWARE.
|
||||
----------------------------------------------------------------------- */
|
||||
|
||||
#define LIBFFI_ASM
|
||||
#define LIBFFI_ASM
|
||||
#include <fficonfig.h>
|
||||
#include <ffi.h>
|
||||
#ifdef HAVE_MACHINE_ASM_H
|
||||
@@ -59,7 +59,7 @@
|
||||
#define __SOFTFP__
|
||||
#endif
|
||||
|
||||
/* We need a better way of testing for this, but for now, this is all
|
||||
/* We need a better way of testing for this, but for now, this is all
|
||||
we can do. */
|
||||
@ This selects the minimum architecture level required.
|
||||
#define __ARM_ARCH__ 3
|
||||
@@ -68,7 +68,7 @@
|
||||
# undef __ARM_ARCH__
|
||||
# define __ARM_ARCH__ 4
|
||||
#endif
|
||||
|
||||
|
||||
#if defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5T__) \
|
||||
|| defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) \
|
||||
|| defined(__ARM_ARCH_5TEJ__)
|
||||
@@ -107,37 +107,60 @@
|
||||
#define UNWIND
|
||||
#else
|
||||
#define UNWIND @
|
||||
#endif
|
||||
|
||||
.syntax unified
|
||||
#endif
|
||||
|
||||
|
||||
#if defined(__thumb__) && !defined(__THUMB_INTERWORK__)
|
||||
#define ARM_FUNC_START(name) \
|
||||
.text; \
|
||||
.align 2; \
|
||||
.thumb; \
|
||||
.thumb_func; \
|
||||
ENTRY(name); \
|
||||
bx pc; \
|
||||
nop; \
|
||||
.arm; \
|
||||
UNWIND .fnstart; \
|
||||
_L__##name:
|
||||
.macro ARM_FUNC_START name
|
||||
.text
|
||||
.align 0
|
||||
.thumb
|
||||
.thumb_func
|
||||
#ifdef __APPLE__
|
||||
ENTRY($0)
|
||||
#else
|
||||
#define ARM_FUNC_START(name) \
|
||||
.text; \
|
||||
.align 2; \
|
||||
.arm; \
|
||||
ENTRY(name); \
|
||||
ENTRY(\name)
|
||||
#endif
|
||||
bx pc
|
||||
nop
|
||||
.arm
|
||||
UNWIND .fnstart
|
||||
/* A hook to tell gdb that we've switched to ARM mode. Also used to call
|
||||
directly from other local arm routines. */
|
||||
#ifdef __APPLE__
|
||||
_L__$0:
|
||||
#else
|
||||
_L__\name:
|
||||
#endif
|
||||
.endm
|
||||
#else
|
||||
.macro ARM_FUNC_START name
|
||||
.text
|
||||
.align 0
|
||||
.arm
|
||||
#ifdef __APPLE__
|
||||
ENTRY($0)
|
||||
#else
|
||||
ENTRY(\name)
|
||||
#endif
|
||||
UNWIND .fnstart
|
||||
.endm
|
||||
#endif
|
||||
|
||||
.macro RETLDM
|
||||
.macro RETLDM regs=, cond=, dirn=ia
|
||||
#if defined (__INTERWORKING__)
|
||||
ldr lr, [sp], #4
|
||||
bx lr
|
||||
.ifc "\regs",""
|
||||
ldr\cond lr, [sp], #4
|
||||
.else
|
||||
ldm\cond\dirn sp!, {\regs, lr}
|
||||
.endif
|
||||
bx\cond lr
|
||||
#else
|
||||
ldr pc, [sp], #4
|
||||
.ifc "\regs",""
|
||||
ldr\cond pc, [sp], #4
|
||||
.else
|
||||
ldm\cond\dirn sp!, {\regs, pc}
|
||||
.endif
|
||||
#endif
|
||||
.endm
|
||||
|
||||
@@ -148,7 +171,7 @@ _L__##name:
|
||||
@ sp+0: ecif.rvalue
|
||||
|
||||
@ This assumes we are using gas.
|
||||
ARM_FUNC_START(ffi_call_SYSV)
|
||||
ARM_FUNC_START ffi_call_SYSV
|
||||
@ Save registers
|
||||
stmfd sp!, {r0-r3, fp, lr}
|
||||
UNWIND .save {r0-r3, fp, lr}
|
||||
@@ -178,14 +201,14 @@ ARM_FUNC_START(ffi_call_SYSV)
|
||||
|
||||
@ call (fn) (...)
|
||||
call_reg(ip)
|
||||
|
||||
|
||||
@ Remove the space we pushed for the args
|
||||
mov sp, fp
|
||||
|
||||
@ Load r2 with the pointer to storage for the return value
|
||||
ldr r2, [sp, #24]
|
||||
|
||||
@ Load r3 with the return type code
|
||||
@ Load r3 with the return type code
|
||||
ldr r3, [sp, #12]
|
||||
|
||||
@ If the return value pointer is NULL, assume no return value.
|
||||
@@ -205,7 +228,7 @@ ARM_FUNC_START(ffi_call_SYSV)
|
||||
#if defined(__SOFTFP__) || defined(__ARM_EABI__)
|
||||
cmpne r3, #FFI_TYPE_DOUBLE
|
||||
#endif
|
||||
stmiaeq r2, {r0, r1}
|
||||
stmeqia r2, {r0, r1}
|
||||
|
||||
#if !defined(__SOFTFP__) && !defined(__ARM_EABI__)
|
||||
beq LSYM(Lepilogue)
|
||||
@@ -243,7 +266,7 @@ LSYM(Lepilogue):
|
||||
void *args;
|
||||
*/
|
||||
|
||||
ARM_FUNC_START(ffi_closure_SYSV)
|
||||
ARM_FUNC_START ffi_closure_SYSV
|
||||
UNWIND .pad #16
|
||||
add ip, sp, #16
|
||||
stmfd sp!, {ip, lr}
|
||||
@@ -322,7 +345,7 @@ ARM_FUNC_START(ffi_closure_SYSV)
|
||||
@ r3: fig->flags
|
||||
@ sp+0: ecif.rvalue
|
||||
|
||||
ARM_FUNC_START(ffi_call_VFP)
|
||||
ARM_FUNC_START ffi_call_VFP
|
||||
@ Save registers
|
||||
stmfd sp!, {r0-r3, fp, lr}
|
||||
UNWIND .save {r0-r3, fp, lr}
|
||||
@@ -374,7 +397,7 @@ LSYM(Lbase_args):
|
||||
@ the return value
|
||||
ldr r2, [sp, #24]
|
||||
|
||||
@ Load r3 with the return type code
|
||||
@ Load r3 with the return type code
|
||||
ldr r3, [sp, #12]
|
||||
|
||||
@ If the return value pointer is NULL,
|
||||
@@ -393,7 +416,7 @@ LSYM(Lbase_args):
|
||||
cmp r3, #FFI_TYPE_FLOAT
|
||||
fstseq s0, [r2]
|
||||
beq LSYM(Lepilogue_vfp)
|
||||
|
||||
|
||||
cmp r3, #FFI_TYPE_DOUBLE
|
||||
fstdeq d0, [r2]
|
||||
beq LSYM(Lepilogue_vfp)
|
||||
@@ -410,7 +433,7 @@ LSYM(Lepilogue_vfp):
|
||||
.size CNAME(ffi_call_VFP),.ffi_call_VFP_end-CNAME(ffi_call_VFP)
|
||||
|
||||
|
||||
ARM_FUNC_START(ffi_closure_VFP)
|
||||
ARM_FUNC_START ffi_closure_VFP
|
||||
fstmfdd sp!, {d0-d7}
|
||||
@ r0-r3, then d0-d7
|
||||
UNWIND .pad #80
|
||||
@@ -443,7 +466,7 @@ ARM_FUNC_START(ffi_closure_VFP)
|
||||
|
||||
cmp r0, #FFI_TYPE_STRUCT_VFP_DOUBLE
|
||||
beq .Lretdouble_struct_vfp
|
||||
|
||||
|
||||
.Lclosure_epilogue_vfp:
|
||||
add sp, sp, #72
|
||||
ldmfd sp, {sp, pc}
|
||||
|
||||
Reference in New Issue
Block a user