/* ———————————————————————–
sysv.S - Copyright (c) 2003, 2004, 2006, 2008 Kaz Kojima SuperH SHmedia 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
ifdef LITTLE_ENDIAN define OFS_FLT 0 else define OFS_FLT 4 endif
.section .text..SHmedia32,"ax" # r2: ffi_prep_args # r3: &ecif # r4: bytes # r5: flags # r6: flags2 # r7: rvalue # r8: fn # This assumes we are using gas. .align 5
ENTRY(ffi_call_SYSV)
# Save registers
.LFB1:
addi.l r15, -48, r15
.LCFI0:
st.q r15, 40, r32 st.q r15, 32, r31 st.q r15, 24, r30 st.q r15, 16, r29 st.q r15, 8, r28 st.l r15, 4, r18 st.l r15, 0, r14
.LCFI1:
add.l r15, r63, r14
.LCFI2: # add r4, r63, r28
add r5, r63, r29 add r6, r63, r30 add r7, r63, r31 add r8, r63, r32 addi r4, (64 + 7), r4 andi r4, ~7, r4 sub.l r15, r4, r15 ptabs/l r2, tr0 add r15, r63, r2 blink tr0, r18 addi r15, 64, r22 movi 0, r0 movi 0, r1 movi -1, r23 pt/l 1f, tr1 bnei/l r29, FFI_TYPE_STRUCT, tr1 ld.l r15, 0, r19 addi r15, 8, r15 addi r0, 1, r0
1:
.L_pass:
andi r30, 3, r20 shlri r30, 2, r30 pt/l .L_call_it, tr0 pt/l .L_pass_i, tr1 pt/l .L_pass_f, tr2 beqi/l r20, FFI_TYPE_VOID, tr0 beqi/l r20, FFI_TYPE_INT, tr1 beqi/l r20, FFI_TYPE_FLOAT, tr2
.L_pass_d:
addi r0, 1, r0 pt/l 3f, tr0 movi 12, r20 bge/l r1, r20, tr0 pt/l .L_pop_d, tr1 pt/l 2f, tr0 blink tr1, r63
2:
addi.l r15, 8, r15
3:
pt/l .L_pass, tr0 addi r1, 2, r1 blink tr0, r63
.L_pop_d:
pt/l .L_pop_d_tbl, tr1 gettr tr1, r20 shlli r1, 2, r21 add r20, r21, r20 ptabs/l r20, tr1 blink tr1, r63
.L_pop_d_tbl:
fld.d r15, 0, dr0 blink tr0, r63 fld.d r15, 0, dr2 blink tr0, r63 fld.d r15, 0, dr4 blink tr0, r63 fld.d r15, 0, dr6 blink tr0, r63 fld.d r15, 0, dr8 blink tr0, r63 fld.d r15, 0, dr10 blink tr0, r63
.L_pass_f:
addi r0, 1, r0 pt/l 3f, tr0 movi 12, r20 bge/l r1, r20, tr0 pt/l .L_pop_f, tr1 pt/l 2f, tr0 blink tr1, r63
2:
addi.l r15, 8, r15
3:
pt/l .L_pass, tr0 blink tr0, r63
.L_pop_f:
pt/l .L_pop_f_tbl, tr1 pt/l 5f, tr2 gettr tr1, r20 bge/l r23, r63, tr2 add r1, r63, r23 shlli r1, 3, r21 addi r1, 2, r1 add r20, r21, r20 ptabs/l r20, tr1 blink tr1, r63
5:
addi r23, 1, r21 movi -1, r23 shlli r21, 3, r21 add r20, r21, r20 ptabs/l r20, tr1 blink tr1, r63
.L_pop_f_tbl:
fld.s r15, OFS_FLT, fr0 blink tr0, r63 fld.s r15, OFS_FLT, fr1 blink tr0, r63 fld.s r15, OFS_FLT, fr2 blink tr0, r63 fld.s r15, OFS_FLT, fr3 blink tr0, r63 fld.s r15, OFS_FLT, fr4 blink tr0, r63 fld.s r15, OFS_FLT, fr5 blink tr0, r63 fld.s r15, OFS_FLT, fr6 blink tr0, r63 fld.s r15, OFS_FLT, fr7 blink tr0, r63 fld.s r15, OFS_FLT, fr8 blink tr0, r63 fld.s r15, OFS_FLT, fr9 blink tr0, r63 fld.s r15, OFS_FLT, fr10 blink tr0, r63 fld.s r15, OFS_FLT, fr11 blink tr0, r63
.L_pass_i:
pt/l 3f, tr0 movi 8, r20 bge/l r0, r20, tr0 pt/l .L_pop_i, tr1 pt/l 2f, tr0 blink tr1, r63
2:
addi.l r15, 8, r15
3:
pt/l .L_pass, tr0 addi r0, 1, r0 blink tr0, r63
.L_pop_i:
pt/l .L_pop_i_tbl, tr1 gettr tr1, r20 shlli r0, 3, r21 add r20, r21, r20 ptabs/l r20, tr1 blink tr1, r63
.L_pop_i_tbl:
ld.q r15, 0, r2 blink tr0, r63 ld.q r15, 0, r3 blink tr0, r63 ld.q r15, 0, r4 blink tr0, r63 ld.q r15, 0, r5 blink tr0, r63 ld.q r15, 0, r6 blink tr0, r63 ld.q r15, 0, r7 blink tr0, r63 ld.q r15, 0, r8 blink tr0, r63 ld.q r15, 0, r9 blink tr0, r63
.L_call_it:
# call function pt/l 1f, tr1 bnei/l r29, FFI_TYPE_STRUCT, tr1 add r19, r63, r2
1:
add r22, r63, r15 ptabs/l r32, tr0 blink tr0, r18 pt/l .L_ret_i, tr0 pt/l .L_ret_ll, tr1 pt/l .L_ret_d, tr2 pt/l .L_ret_f, tr3 pt/l .L_epilogue, tr4 beqi/l r29, FFI_TYPE_INT, tr0 beqi/l r29, FFI_TYPE_UINT32, tr0 beqi/l r29, FFI_TYPE_SINT64, tr1 beqi/l r29, FFI_TYPE_UINT64, tr1 beqi/l r29, FFI_TYPE_DOUBLE, tr2 beqi/l r29, FFI_TYPE_FLOAT, tr3 pt/l .L_ret_q, tr0 pt/l .L_ret_h, tr1 beqi/l r29, FFI_TYPE_UINT8, tr0 beqi/l r29, FFI_TYPE_UINT16, tr1 blink tr4, r63
.L_ret_d:
fst.d r31, 0, dr0 blink tr4, r63
.L_ret_ll:
st.q r31, 0, r2 blink tr4, r63
.L_ret_f:
fst.s r31, OFS_FLT, fr0 blink tr4, r63
.L_ret_q:
st.b r31, 0, r2 blink tr4, r63
.L_ret_h:
st.w r31, 0, r2 blink tr4, r63
.L_ret_i:
st.l r31, 0, r2 # Fall
.L_epilogue:
# Remove the space we pushed for the args add r14, r63, r15 ld.l r15, 0, r14 ld.l r15, 4, r18 ld.q r15, 8, r28 ld.q r15, 16, r29 ld.q r15, 24, r30 ld.q r15, 32, r31 ld.q r15, 40, r32 addi.l r15, 48, r15 ptabs r18, tr0 blink tr0, r63
.LFE1: .ffi_call_SYSV_end:
.size CNAME(ffi_call_SYSV),.ffi_call_SYSV_end-CNAME(ffi_call_SYSV) .align 5
ENTRY(ffi_closure_SYSV) .LFB2:
addi.l r15, -136, r15
.LCFI3:
st.l r15, 12, r18 st.l r15, 8, r14 st.l r15, 4, r12
.LCFI4:
add r15, r63, r14
.LCFI5:
/* Stack layout:
...
64 bytes (register parameters)
48 bytes (floating register parameters)
8 bytes (result)
4 bytes (r18)
4 bytes (r14)
4 bytes (r12)
4 bytes (for align)
<- new stack pointer
*/
fst.d r14, 24, dr0
fst.d r14, 32, dr2
fst.d r14, 40, dr4
fst.d r14, 48, dr6
fst.d r14, 56, dr8
fst.d r14, 64, dr10
st.q r14, 72, r2
st.q r14, 80, r3
st.q r14, 88, r4
st.q r14, 96, r5
st.q r14, 104, r6
st.q r14, 112, r7
st.q r14, 120, r8
st.q r14, 128, r9
add r1, r63, r2
addi r14, 16, r3
addi r14, 72, r4
addi r14, 24, r5
addi r14, 136, r6
ifdef PIC
movi (((datalabel _GLOBAL_OFFSET_TABLE_-(.LPCS0-.)) >> 16) & 65535), r12 shori ((datalabel _GLOBAL_OFFSET_TABLE_-(.LPCS0-.)) & 65535), r12
.LPCS0: ptrel/u r12, tr0
movi ((ffi_closure_helper_SYSV@GOTPLT) & 65535), r1 gettr tr0, r12 ldx.l r1, r12, r1 ptabs r1, tr0
else
pt/l ffi_closure_helper_SYSV, tr0
endif
blink tr0, r18 shlli r2, 1, r1 movi (((datalabel .L_table) >> 16) & 65535), r2 shori ((datalabel .L_table) & 65535), r2 ldx.w r2, r1, r1 add r1, r2, r1 pt/l .L_case_v, tr1 ptabs r1, tr0 blink tr0, r63 .align 2
.L_table:
.word .L_case_v - datalabel .L_table /* FFI_TYPE_VOID */ .word .L_case_i - datalabel .L_table /* FFI_TYPE_INT */ .word .L_case_f - datalabel .L_table /* FFI_TYPE_FLOAT */ .word .L_case_d - datalabel .L_table /* FFI_TYPE_DOUBLE */ .word .L_case_d - datalabel .L_table /* FFI_TYPE_LONGDOUBLE */ .word .L_case_uq - datalabel .L_table /* FFI_TYPE_UINT8 */ .word .L_case_q - datalabel .L_table /* FFI_TYPE_SINT8 */ .word .L_case_uh - datalabel .L_table /* FFI_TYPE_UINT16 */ .word .L_case_h - datalabel .L_table /* FFI_TYPE_SINT16 */ .word .L_case_i - datalabel .L_table /* FFI_TYPE_UINT32 */ .word .L_case_i - datalabel .L_table /* FFI_TYPE_SINT32 */ .word .L_case_ll - datalabel .L_table /* FFI_TYPE_UINT64 */ .word .L_case_ll - datalabel .L_table /* FFI_TYPE_SINT64 */ .word .L_case_v - datalabel .L_table /* FFI_TYPE_STRUCT */ .word .L_case_i - datalabel .L_table /* FFI_TYPE_POINTER */ .align 2
.L_case_d:
fld.d r14, 16, dr0 blink tr1, r63
.L_case_f:
fld.s r14, 16, fr0 blink tr1, r63
.L_case_ll:
ld.q r14, 16, r2 blink tr1, r63
.L_case_i:
ld.l r14, 16, r2 blink tr1, r63
.L_case_q:
ld.b r14, 16, r2 blink tr1, r63
.L_case_uq:
ld.ub r14, 16, r2 blink tr1, r63
.L_case_h:
ld.w r14, 16, r2 blink tr1, r63
.L_case_uh:
ld.uw r14, 16, r2 blink tr1, r63
.L_case_v:
add.l r14, r63, r15 ld.l r15, 4, r12 ld.l r15, 8, r14 ld.l r15, 12, r18 addi.l r15, 136, r15 ptabs r18, tr0 blink tr0, r63
.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
.uleb128 0x1 /* CIE Code Alignment Factor */ .sleb128 -4 /* CIE Data Alignment Factor */ .byte 0x12 /* CIE RA Column */
ifdef PIC
.uleb128 0x1 /* Augmentation size */ .byte 0x10 /* FDE Encoding (pcrel) */
endif
.byte 0xc /* DW_CFA_def_cfa */ .uleb128 0xf .uleb128 0x0 .align 2
.LECIE1: .LSFDE1:
.4byte datalabel .LEFDE1-datalabel .LASFDE1 /* FDE Length */
.LASFDE1:
.4byte datalabel .LASFDE1-datalabel __FRAME_BEGIN__
ifdef PIC
.4byte .LFB1-. /* FDE initial location */
else
.4byte .LFB1 /* FDE initial location */
endif
.4byte datalabel .LFE1-datalabel .LFB1 /* FDE address range */
ifdef PIC
.uleb128 0x0 /* Augmentation size */
endif
.byte 0x4 /* DW_CFA_advance_loc4 */ .4byte datalabel .LCFI0-datalabel .LFB1 .byte 0xe /* DW_CFA_def_cfa_offset */ .uleb128 0x30 .byte 0x4 /* DW_CFA_advance_loc4 */ .4byte datalabel .LCFI1-datalabel .LCFI0 .byte 0x8e /* DW_CFA_offset, column 0xe */ .uleb128 0xc .byte 0x92 /* DW_CFA_offset, column 0x12 */ .uleb128 0xb .byte 0x9c /* DW_CFA_offset, column 0x1c */ .uleb128 0xa .byte 0x9d /* DW_CFA_offset, column 0x1d */ .uleb128 0x8 .byte 0x9e /* DW_CFA_offset, column 0x1e */ .uleb128 0x6 .byte 0x9f /* DW_CFA_offset, column 0x1f */ .uleb128 0x4 .byte 0xa0 /* DW_CFA_offset, column 0x20 */ .uleb128 0x2 .byte 0x4 /* DW_CFA_advance_loc4 */ .4byte datalabel .LCFI2-datalabel .LCFI1 .byte 0xd /* DW_CFA_def_cfa_register */ .uleb128 0xe .align 2
.LEFDE1:
.LSFDE3:
.4byte datalabel .LEFDE3-datalabel .LASFDE3 /* FDE Length */
.LASFDE3:
.4byte datalabel .LASFDE3-datalabel __FRAME_BEGIN__
ifdef PIC
.4byte .LFB2-. /* FDE initial location */
else
.4byte .LFB2 /* FDE initial location */
endif
.4byte datalabel .LFE2-datalabel .LFB2 /* FDE address range */
ifdef PIC
.uleb128 0x0 /* Augmentation size */
endif
.byte 0x4 /* DW_CFA_advance_loc4 */ .4byte datalabel .LCFI3-datalabel .LFB2 .byte 0xe /* DW_CFA_def_cfa_offset */ .uleb128 0x88 .byte 0x4 /* DW_CFA_advance_loc4 */ .4byte datalabel .LCFI4-datalabel .LCFI3 .byte 0x8c /* DW_CFA_offset, column 0xc */ .uleb128 0x21 .byte 0x8e /* DW_CFA_offset, column 0xe */ .uleb128 0x20 .byte 0x92 /* DW_CFA_offset, column 0x12 */ .uleb128 0x1f .byte 0x4 /* DW_CFA_advance_loc4 */ .4byte datalabel .LCFI5-datalabel .LCFI4 .byte 0xd /* DW_CFA_def_cfa_register */ .uleb128 0xe .align 2
.LEFDE3: