/* ———————————————————————–
sysv.S - Copyright (c) 2002, 2003, 2004, 2006, 2008 Kaz Kojima SuperH Foreign Function Interface Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the ``Software''), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ----------------------------------------------------------------------- */
define LIBFFI_ASM
include <fficonfig.h> include <ffi.h> ifdef HAVE_MACHINE_ASM_H include <machine/asm.h> else /* XXX these lose for some platforms, I’m sure. */ define CNAME(x) x define ENTRY(x) .globl CNAME(x); .type CNAME(x),%function; CNAME(x): endif
if defined(__HITACHI__) define STRUCT_VALUE_ADDRESS_WITH_ARG 1 else define STRUCT_VALUE_ADDRESS_WITH_ARG 0 endif
.text
# r4: ffi_prep_args # r5: &ecif # r6: bytes # r7: flags # sp+0: rvalue # sp+4: fn # This assumes we are using gas.
ENTRY(ffi_call_SYSV)
# Save registers
.LFB1:
mov.l r8,@-r15
.LCFI0:
mov.l r9,@-r15
.LCFI1:
mov.l r10,@-r15
.LCFI2:
mov.l r12,@-r15
.LCFI3:
mov.l r14,@-r15
.LCFI4:
sts.l pr,@-r15
.LCFI5:
mov r15,r14
.LCFI6: if defined(SH4)
mov r6,r8 mov r7,r9 sub r6,r15 add #-16,r15 mov #~7,r0 and r0,r15 mov r4,r0 jsr @r0 mov r15,r4 mov r9,r1 shlr8 r9 shlr8 r9 shlr8 r9 mov #FFI_TYPE_STRUCT,r2 cmp/eq r2,r9 bf 1f
if STRUCT_VALUE_ADDRESS_WITH_ARG
mov.l @r15+,r4 bra 2f mov #5,r2
else
mov.l @r15+,r10
endif 1:
mov #4,r2
2:
mov #4,r3
L_pass:
cmp/pl r8 bf L_call_it mov r1,r0 and #3,r0
L_pass_d:
cmp/eq #FFI_TYPE_DOUBLE,r0 bf L_pass_f mov r3,r0 and #1,r0 tst r0,r0 bt 1f add #1,r3
1:
mov #12,r0 cmp/hs r0,r3 bt/s 3f shlr2 r1 bsr L_pop_d nop
3:
add #2,r3 bra L_pass add #-8,r8
L_pop_d:
mov r3,r0 add r0,r0 add r3,r0 add #-12,r0 braf r0 nop
ifdef LITTLE_ENDIAN
fmov.s @r15+,fr5 rts fmov.s @r15+,fr4 fmov.s @r15+,fr7 rts fmov.s @r15+,fr6 fmov.s @r15+,fr9 rts fmov.s @r15+,fr8 fmov.s @r15+,fr11 rts fmov.s @r15+,fr10
else
fmov.s @r15+,fr4 rts fmov.s @r15+,fr5 fmov.s @r15+,fr6 rts fmov.s @r15+,fr7 fmov.s @r15+,fr8 rts fmov.s @r15+,fr9 fmov.s @r15+,fr10 rts fmov.s @r15+,fr11
endif
L_pass_f:
cmp/eq #FFI_TYPE_FLOAT,r0 bf L_pass_i mov #12,r0 cmp/hs r0,r3 bt/s 2f shlr2 r1 bsr L_pop_f nop
2:
add #1,r3 bra L_pass add #-4,r8
L_pop_f:
mov r3,r0 shll2 r0 add #-16,r0 braf r0 nop
ifdef LITTLE_ENDIAN
rts fmov.s @r15+,fr5 rts fmov.s @r15+,fr4 rts fmov.s @r15+,fr7 rts fmov.s @r15+,fr6 rts fmov.s @r15+,fr9 rts fmov.s @r15+,fr8 rts fmov.s @r15+,fr11 rts fmov.s @r15+,fr10
else
rts fmov.s @r15+,fr4 rts fmov.s @r15+,fr5 rts fmov.s @r15+,fr6 rts fmov.s @r15+,fr7 rts fmov.s @r15+,fr8 rts fmov.s @r15+,fr9 rts fmov.s @r15+,fr10 rts fmov.s @r15+,fr11
endif
L_pass_i:
cmp/eq #FFI_TYPE_INT,r0 bf L_call_it mov #8,r0 cmp/hs r0,r2 bt/s 2f shlr2 r1 bsr L_pop_i nop
2:
add #1,r2 bra L_pass add #-4,r8
L_pop_i:
mov r2,r0 shll2 r0 add #-16,r0 braf r0 nop rts mov.l @r15+,r4 rts mov.l @r15+,r5 rts mov.l @r15+,r6 rts mov.l @r15+,r7
L_call_it:
# call function
if (! STRUCT_VALUE_ADDRESS_WITH_ARG)
mov r10, r2
endif
mov.l @(28,r14),r1 jsr @r1 nop
L_ret_d:
mov #FFI_TYPE_DOUBLE,r2 cmp/eq r2,r9 bf L_ret_ll mov.l @(24,r14),r1
ifdef LITTLE_ENDIAN
fmov.s fr1,@r1 add #4,r1 bra L_epilogue fmov.s fr0,@r1
else
fmov.s fr0,@r1 add #4,r1 bra L_epilogue fmov.s fr1,@r1
endif
L_ret_ll:
mov #FFI_TYPE_SINT64,r2 cmp/eq r2,r9 bt/s 1f mov #FFI_TYPE_UINT64,r2 cmp/eq r2,r9 bf L_ret_f
1:
mov.l @(24,r14),r2 mov.l r0,@r2 bra L_epilogue mov.l r1,@(4,r2)
L_ret_f:
mov #FFI_TYPE_FLOAT,r2 cmp/eq r2,r9 bf L_ret_i mov.l @(24,r14),r1 bra L_epilogue fmov.s fr0,@r1
L_ret_i:
mov #FFI_TYPE_INT,r2 cmp/eq r2,r9 bf L_epilogue mov.l @(24,r14),r1 bra L_epilogue mov.l r0,@r1
L_epilogue:
# Remove the space we pushed for the args mov r14,r15 lds.l @r15+,pr mov.l @r15+,r14 mov.l @r15+,r12 mov.l @r15+,r10 mov.l @r15+,r9 rts mov.l @r15+,r8
else
mov r6,r8 mov r7,r9 sub r6,r15 add #-16,r15 mov #~7,r0 and r0,r15 mov r4,r0 jsr @r0 mov r15,r4 mov r9,r3 shlr8 r9 shlr8 r9 shlr8 r9 mov #FFI_TYPE_STRUCT,r2 cmp/eq r2,r9 bf 1f
if STRUCT_VALUE_ADDRESS_WITH_ARG
mov.l @r15+,r4 bra 2f mov #5,r2
else
mov.l @r15+,r10
endif 1:
mov #4,r2
2:
L_pass:
cmp/pl r8 bf L_call_it mov r3,r0 and #3,r0
L_pass_d:
cmp/eq #FFI_TYPE_DOUBLE,r0 bf L_pass_i mov r15,r0 and #7,r0 tst r0,r0 bt 1f add #4,r15
1:
mov #8,r0 cmp/hs r0,r2 bt/s 2f shlr2 r3 bsr L_pop_d nop
2:
add #2,r2 bra L_pass add #-8,r8
L_pop_d:
mov r2,r0 add r0,r0 add r2,r0 add #-12,r0 add r0,r0 braf r0 nop mov.l @r15+,r4 rts mov.l @r15+,r5 mov.l @r15+,r5 rts mov.l @r15+,r6 mov.l @r15+,r6 rts mov.l @r15+,r7 rts mov.l @r15+,r7
L_pass_i:
cmp/eq #FFI_TYPE_INT,r0 bf L_call_it mov #8,r0 cmp/hs r0,r2 bt/s 2f shlr2 r3 bsr L_pop_i nop
2:
add #1,r2 bra L_pass add #-4,r8
L_pop_i:
mov r2,r0 shll2 r0 add #-16,r0 braf r0 nop rts mov.l @r15+,r4 rts mov.l @r15+,r5 rts mov.l @r15+,r6 rts mov.l @r15+,r7
L_call_it:
# call function
if (! STRUCT_VALUE_ADDRESS_WITH_ARG)
mov r10, r2
endif
mov.l @(28,r14),r1 jsr @r1 nop
L_ret_d:
mov #FFI_TYPE_DOUBLE,r2 cmp/eq r2,r9 bf L_ret_ll mov.l @(24,r14),r2 mov.l r0,@r2 bra L_epilogue mov.l r1,@(4,r2)
L_ret_ll:
mov #FFI_TYPE_SINT64,r2 cmp/eq r2,r9 bt/s 1f mov #FFI_TYPE_UINT64,r2 cmp/eq r2,r9 bf L_ret_i
1:
mov.l @(24,r14),r2 mov.l r0,@r2 bra L_epilogue mov.l r1,@(4,r2)
L_ret_i:
mov #FFI_TYPE_FLOAT,r2 cmp/eq r2,r9 bt 1f mov #FFI_TYPE_INT,r2 cmp/eq r2,r9 bf L_epilogue
1:
mov.l @(24,r14),r1 bra L_epilogue mov.l r0,@r1
L_epilogue:
# Remove the space we pushed for the args mov r14,r15 lds.l @r15+,pr mov.l @r15+,r14 mov.l @r15+,r12 mov.l @r15+,r10 mov.l @r15+,r9 rts mov.l @r15+,r8
endif .LFE1: .ffi_call_SYSV_end:
.size CNAME(ffi_call_SYSV),.ffi_call_SYSV_end-CNAME(ffi_call_SYSV)
.globl ffi_closure_helper_SYSV
ENTRY(ffi_closure_SYSV) .LFB2:
mov.l r7,@-r15
.LCFI7:
mov.l r6,@-r15
.LCFI8:
mov.l r5,@-r15
.LCFI9:
mov.l r4,@-r15
.LCFIA:
mov.l r14,@-r15
.LCFIB:
sts.l pr,@-r15
/* Stack layout:
xx bytes (on stack parameters)
16 bytes (register parameters)
4 bytes (saved frame pointer)
4 bytes (saved return address)
32 bytes (floating register parameters, SH-4 only)
8 bytes (result)
4 bytes (pad)
4 bytes (5th arg)
<- new stack pointer
*/
.LCFIC: if defined(SH4)
add #-48,r15
else
add #-16,r15
endif .LCFID:
mov r15,r14
.LCFIE:
if defined(SH4)
mov r14,r1 add #48,r1
ifdef LITTLE_ENDIAN
fmov.s fr10,@-r1 fmov.s fr11,@-r1 fmov.s fr8,@-r1 fmov.s fr9,@-r1 fmov.s fr6,@-r1 fmov.s fr7,@-r1 fmov.s fr4,@-r1 fmov.s fr5,@-r1
else
fmov.s fr11,@-r1 fmov.s fr10,@-r1 fmov.s fr9,@-r1 fmov.s fr8,@-r1 fmov.s fr7,@-r1 fmov.s fr6,@-r1 fmov.s fr5,@-r1 fmov.s fr4,@-r1
endif
mov r1,r7 mov r14,r6 add #56,r6
else
mov r14,r6 add #24,r6
endif
bt/s 10f mov r2, r5 mov r14,r1 add #8,r1 mov r1,r5
10:
mov r14,r1
if defined(SH4)
add #72,r1
else
add #40,r1
endif
mov.l r1,@r14
ifdef PIC
mov.l L_got,r1 mova L_got,r0 add r0,r1 mov.l L_helper,r0 add r1,r0
else
mov.l L_helper,r0
endif
jsr @r0 mov r3,r4 shll r0 mov r0,r1 mova L_table,r0 add r1,r0 mov.w @r0,r0 mov r14,r2 braf r0 add #8,r2
0:
.align 2
ifdef PIC L_got:
.long _GLOBAL_OFFSET_TABLE_
L_helper:
.long ffi_closure_helper_SYSV@GOTOFF
else L_helper:
.long ffi_closure_helper_SYSV
endif L_table:
.short L_case_v - 0b /* FFI_TYPE_VOID */ .short L_case_i - 0b /* FFI_TYPE_INT */
if defined(SH4)
.short L_case_f - 0b /* FFI_TYPE_FLOAT */ .short L_case_d - 0b /* FFI_TYPE_DOUBLE */ .short L_case_d - 0b /* FFI_TYPE_LONGDOUBLE */
else
.short L_case_i - 0b /* FFI_TYPE_FLOAT */ .short L_case_ll - 0b /* FFI_TYPE_DOUBLE */ .short L_case_ll - 0b /* FFI_TYPE_LONGDOUBLE */
endif
.short L_case_uq - 0b /* FFI_TYPE_UINT8 */ .short L_case_q - 0b /* FFI_TYPE_SINT8 */ .short L_case_uh - 0b /* FFI_TYPE_UINT16 */ .short L_case_h - 0b /* FFI_TYPE_SINT16 */ .short L_case_i - 0b /* FFI_TYPE_UINT32 */ .short L_case_i - 0b /* FFI_TYPE_SINT32 */ .short L_case_ll - 0b /* FFI_TYPE_UINT64 */ .short L_case_ll - 0b /* FFI_TYPE_SINT64 */ .short L_case_v - 0b /* FFI_TYPE_STRUCT */ .short L_case_i - 0b /* FFI_TYPE_POINTER */
if defined(SH4) L_case_d: ifdef LITTLE_ENDIAN
fmov.s @r2+,fr1 bra L_case_v fmov.s @r2,fr0
else
fmov.s @r2+,fr0 bra L_case_v fmov.s @r2,fr1
endif
L_case_f:
bra L_case_v fmov.s @r2,fr0
endif
L_case_ll:
mov.l @r2+,r0 bra L_case_v mov.l @r2,r1
L_case_i:
bra L_case_v mov.l @r2,r0
L_case_q: ifdef LITTLE_ENDIAN else
add #3,r2
endif
bra L_case_v mov.b @r2,r0
L_case_uq: ifdef LITTLE_ENDIAN else
add #3,r2
endif
mov.b @r2,r0 bra L_case_v extu.b r0,r0
L_case_h: ifdef LITTLE_ENDIAN else
add #2,r2
endif
bra L_case_v mov.w @r2,r0
L_case_uh: ifdef LITTLE_ENDIAN else
add #2,r2
endif
mov.w @r2,r0 extu.w r0,r0 /* fall through */
L_case_v: if defined(SH4)
add #48,r15
else
add #16,r15
endif
lds.l @r15+,pr mov.l @r15+,r14 rts add #16,r15
.LFE2: .ffi_closure_SYSV_end:
.size CNAME(ffi_closure_SYSV),.ffi_closure_SYSV_end-CNAME(ffi_closure_SYSV)
if defined __ELF__ && defined __linux__
.section .note.GNU-stack,"",@progbits
endif
.section ".eh_frame","aw",@progbits
FRAME_BEGIN:
.4byte .LECIE1-.LSCIE1 /* Length of Common Information Entry */
.LSCIE1:
.4byte 0x0 /* CIE Identifier Tag */ .byte 0x1 /* CIE Version */
ifdef PIC
.ascii "zR\0" /* CIE Augmentation */
else
.byte 0x0 /* CIE Augmentation */
endif
.byte 0x1 /* uleb128 0x1; CIE Code Alignment Factor */ .byte 0x7c /* sleb128 -4; CIE Data Alignment Factor */ .byte 0x11 /* CIE RA Column */
ifdef PIC
.uleb128 0x1 /* Augmentation size */ .byte 0x10 /* FDE Encoding (pcrel) */
endif
.byte 0xc /* DW_CFA_def_cfa */ .byte 0xf /* uleb128 0xf */ .byte 0x0 /* uleb128 0x0 */ .align 2
.LECIE1: .LSFDE1:
.4byte .LEFDE1-.LASFDE1 /* FDE Length */
.LASFDE1:
.4byte .LASFDE1-__FRAME_BEGIN__ /* FDE CIE offset */
ifdef PIC
.4byte .LFB1-. /* FDE initial location */
else
.4byte .LFB1 /* FDE initial location */
endif
.4byte .LFE1-.LFB1 /* FDE address range */
ifdef PIC
.uleb128 0x0 /* Augmentation size */
endif
.byte 0x4 /* DW_CFA_advance_loc4 */ .4byte .LCFI0-.LFB1 .byte 0xe /* DW_CFA_def_cfa_offset */ .byte 0x4 /* uleb128 0x4 */ .byte 0x4 /* DW_CFA_advance_loc4 */ .4byte .LCFI1-.LCFI0 .byte 0xe /* DW_CFA_def_cfa_offset */ .byte 0x8 /* uleb128 0x4 */ .byte 0x4 /* DW_CFA_advance_loc4 */ .4byte .LCFI2-.LCFI1 .byte 0xe /* DW_CFA_def_cfa_offset */ .byte 0xc /* uleb128 0x4 */ .byte 0x4 /* DW_CFA_advance_loc4 */ .4byte .LCFI3-.LCFI2 .byte 0xe /* DW_CFA_def_cfa_offset */ .byte 0x10 /* uleb128 0x4 */ .byte 0x4 /* DW_CFA_advance_loc4 */ .4byte .LCFI4-.LCFI3 .byte 0xe /* DW_CFA_def_cfa_offset */ .byte 0x14 /* uleb128 0x4 */ .byte 0x4 /* DW_CFA_advance_loc4 */ .4byte .LCFI5-.LCFI4 .byte 0xe /* DW_CFA_def_cfa_offset */ .byte 0x18 /* uleb128 0x4 */ .byte 0x91 /* DW_CFA_offset, column 0x11 */ .byte 0x6 /* uleb128 0x6 */ .byte 0x8e /* DW_CFA_offset, column 0xe */ .byte 0x5 /* uleb128 0x5 */ .byte 0x8c /* DW_CFA_offset, column 0xc */ .byte 0x4 /* uleb128 0x4 */ .byte 0x8a /* DW_CFA_offset, column 0xa */ .byte 0x3 /* uleb128 0x3 */ .byte 0x89 /* DW_CFA_offset, column 0x9 */ .byte 0x2 /* uleb128 0x2 */ .byte 0x88 /* DW_CFA_offset, column 0x8 */ .byte 0x1 /* uleb128 0x1 */ .byte 0x4 /* DW_CFA_advance_loc4 */ .4byte .LCFI6-.LCFI5 .byte 0xd /* DW_CFA_def_cfa_register */ .byte 0xe /* uleb128 0xe */ .align 2
.LEFDE1:
.LSFDE3:
.4byte .LEFDE3-.LASFDE3 /* FDE Length */
.LASFDE3:
.4byte .LASFDE3-__FRAME_BEGIN__ /* FDE CIE offset */
ifdef PIC
.4byte .LFB2-. /* FDE initial location */
else
.4byte .LFB2 /* FDE initial location */
endif
.4byte .LFE2-.LFB2 /* FDE address range */
ifdef PIC
.uleb128 0x0 /* Augmentation size */
endif
.byte 0x4 /* DW_CFA_advance_loc4 */ .4byte .LCFI7-.LFB2 .byte 0xe /* DW_CFA_def_cfa_offset */ .byte 0x4 /* uleb128 0x4 */ .byte 0x4 /* DW_CFA_advance_loc4 */ .4byte .LCFI8-.LCFI7 .byte 0xe /* DW_CFA_def_cfa_offset */ .byte 0x8 /* uleb128 0x4 */ .byte 0x4 /* DW_CFA_advance_loc4 */ .4byte .LCFI9-.LCFI8 .byte 0xe /* DW_CFA_def_cfa_offset */ .byte 0xc /* uleb128 0x4 */ .byte 0x4 /* DW_CFA_advance_loc4 */ .4byte .LCFIA-.LCFI9 .byte 0xe /* DW_CFA_def_cfa_offset */ .byte 0x10 /* uleb128 0x4 */ .byte 0x4 /* DW_CFA_advance_loc4 */ .4byte .LCFIB-.LCFIA .byte 0xe /* DW_CFA_def_cfa_offset */ .byte 0x14 /* uleb128 0x4 */ .byte 0x4 /* DW_CFA_advance_loc4 */ .4byte .LCFIC-.LCFIB .byte 0xe /* DW_CFA_def_cfa_offset */ .byte 0x18 /* uleb128 0x4 */ .byte 0x4 /* DW_CFA_advance_loc4 */ .4byte .LCFID-.LCFIC .byte 0xe /* DW_CFA_def_cfa_offset */
if defined(SH4)
.byte 24+48 /* uleb128 24+48 */
else
.byte 24+16 /* uleb128 24+16 */
endif
.byte 0x91 /* DW_CFA_offset, column 0x11 */ .byte 0x6 /* uleb128 0x6 */ .byte 0x8e /* DW_CFA_offset, column 0xe */ .byte 0x5 /* uleb128 0x5 */ .byte 0x84 /* DW_CFA_offset, column 0x4 */ .byte 0x4 /* uleb128 0x4 */ .byte 0x85 /* DW_CFA_offset, column 0x5 */ .byte 0x3 /* uleb128 0x3 */ .byte 0x86 /* DW_CFA_offset, column 0x6 */ .byte 0x2 /* uleb128 0x2 */ .byte 0x87 /* DW_CFA_offset, column 0x7 */ .byte 0x1 /* uleb128 0x1 */ .byte 0x4 /* DW_CFA_advance_loc4 */ .4byte .LCFIE-.LCFID .byte 0xd /* DW_CFA_def_cfa_register */ .byte 0xe /* uleb128 0xe */ .align 2
.LEFDE3: