diff options
Diffstat (limited to 'ext/ffi_c/libffi/src/arm/sysv.S')
| -rw-r--r-- | ext/ffi_c/libffi/src/arm/sysv.S | 84 |
1 files changed, 39 insertions, 45 deletions
diff --git a/ext/ffi_c/libffi/src/arm/sysv.S b/ext/ffi_c/libffi/src/arm/sysv.S index 14a7f03..541bbe9 100644 --- a/ext/ffi_c/libffi/src/arm/sysv.S +++ b/ext/ffi_c/libffi/src/arm/sysv.S @@ -41,7 +41,7 @@ #define CNAME(x) x #endif #ifdef __APPLE__ -#define ENTRY(x) .globl CNAME(x); CNAME(x): +#define ENTRY(x) .globl _##x; _##x: #else #define ENTRY(x) .globl CNAME(x); .type CNAME(x),%function; CNAME(x): #endif /* __APPLE__ */ @@ -109,42 +109,27 @@ #define UNWIND @ #endif - +.syntax unified + #if defined(__thumb__) && !defined(__THUMB_INTERWORK__) -.macro ARM_FUNC_START name - .text - .align 0 - .thumb - .thumb_func -#ifdef __APPLE__ - ENTRY($0) -#else - 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) +#define ARM_FUNC_START(name) \ + .text; \ + .align 2; \ + .thumb; \ + .thumb_func; \ + ENTRY(name); \ + bx pc; \ + nop; \ + .arm; \ + UNWIND .fnstart; \ +_L__##name: #else - ENTRY(\name) -#endif +#define ARM_FUNC_START(name) \ + .text; \ + .align 2; \ + .arm; \ + ENTRY(name); \ UNWIND .fnstart -.endm #endif .macro RETLDM regs=, cond=, dirn=ia @@ -171,7 +156,7 @@ _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} @@ -187,7 +172,7 @@ ARM_FUNC_START ffi_call_SYSV @ r1 already set @ Call ffi_prep_args(stack, &ecif) - bl ffi_prep_args + bl CNAME(ffi_prep_args_SYSV) @ move first 4 parameters in registers ldmia sp, {r0-r3} @@ -228,7 +213,7 @@ ARM_FUNC_START ffi_call_SYSV #if defined(__SOFTFP__) || defined(__ARM_EABI__) cmpne r3, #FFI_TYPE_DOUBLE #endif - stmeqia r2, {r0, r1} + stmiaeq r2, {r0, r1} #if !defined(__SOFTFP__) && !defined(__ARM_EABI__) beq LSYM(Lepilogue) @@ -260,13 +245,13 @@ LSYM(Lepilogue): /* unsigned int FFI_HIDDEN - ffi_closure_SYSV_inner (closure, respp, args) + ffi_closure_inner (closure, respp, args) ffi_closure *closure; void **respp; 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} @@ -276,7 +261,7 @@ ARM_FUNC_START ffi_closure_SYSV sub sp, sp, #16 str sp, [sp, #8] add r1, sp, #8 - bl CNAME(ffi_closure_SYSV_inner) + bl CNAME(ffi_closure_inner) cmp r0, #FFI_TYPE_INT beq .Lretint @@ -334,7 +319,9 @@ ARM_FUNC_START ffi_closure_SYSV /* Below are VFP hard-float ABI call and closure implementations. - Add VFP FPU directive here. */ + Add VFP FPU directive here. This is only compiled into the library + under EABI. */ +#ifdef __ARM_EABI__ .fpu vfp @ r0: fn @@ -343,7 +330,7 @@ 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} @@ -362,10 +349,11 @@ ARM_FUNC_START ffi_call_VFP sub r2, fp, #64 @ VFP scratch space @ Call ffi_prep_args(stack, &ecif, vfp_space) - bl ffi_prep_args + bl CNAME(ffi_prep_args_VFP) @ Load VFP register args if needed cmp r0, #0 + mov ip, fp beq LSYM(Lbase_args) @ Load only d0 if possible @@ -431,7 +419,7 @@ 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 @@ -444,7 +432,7 @@ ARM_FUNC_START ffi_closure_VFP sub sp, sp, #72 str sp, [sp, #64] add r1, sp, #64 - bl ffi_closure_SYSV_inner + bl CNAME(ffi_closure_inner) cmp r0, #FFI_TYPE_INT beq .Lretint_vfp @@ -491,6 +479,12 @@ ARM_FUNC_START ffi_closure_VFP .ffi_closure_VFP_end: UNWIND .fnend .size CNAME(ffi_closure_VFP),.ffi_closure_VFP_end-CNAME(ffi_closure_VFP) +#endif + +ENTRY(ffi_arm_trampoline) + stmfd sp!, {r0-r3} + ldr r0, [pc] + ldr pc, [pc] #if defined __ELF__ && defined __linux__ .section .note.GNU-stack,"",%progbits |