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|
/* -----------------------------------------------------------------------
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:
|
