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2017-08-31  Tony Reix  <tony.reix@atos.net>

        * src/powerpc/aix.S (ffi_call_AIX): Add debugging pseudo-op and
        labels for EH.
        (ffi_call_go_AIX): New function.
        (_GLOBAL__F_libffi_src_powerpc_aix): New EH frame.
        * src/powerpc/aix_closure.S (ffi_closure_ASM): Add debugging
        pseudo-op and labels for EH.
        (ffi_go_closure_ASM): New function.
        (_GLOBAL__F_libffi_src_powerpc_aix_closure): New EH frame.
        * src/powrpc/ffi_darwin.c (ffi_call_go): New function.
        (ffi_prep_go_closure): New function.
        (ffi_closure_helper_common): Rename from ffi_closure_helper_DARWIN.
        (ffi_closure_helper_DARWIN): Call ffi_closure_helper_common.
        (ffi_go_closure_helper_DARWIN): Call ffi_closure_helper_common.
        * src/powerpc/ffitarget.h (FFI_GO_CLOSURES): Define.

From-SVN: r253386
This commit is contained in:
Tony Reix 2017-10-03 18:26:31 +00:00 committed by David Edelsohn
parent 11e3d45c7e
commit fbdc37805a
5 changed files with 595 additions and 9 deletions
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17
libffi/ChangeLog
View File

@ -1,3 +1,20 @@
2017-08-31 Tony Reix <tony.reix@atos.net>
* src/powerpc/aix.S (ffi_call_AIX): Add debugging pseudo-op and
labels for EH.
(ffi_call_go_AIX): New function.
(_GLOBAL__F_libffi_src_powerpc_aix): New EH frame.
* src/powerpc/aix_closure.S (ffi_closure_ASM): Add debugging
pseudo-op and labels for EH.
(ffi_go_closure_ASM): New function.
(_GLOBAL__F_libffi_src_powerpc_aix_closure): New EH frame.
* src/powrpc/ffi_darwin.c (ffi_call_go): New function.
(ffi_prep_go_closure): New function.
(ffi_closure_helper_common): Rename from ffi_closure_helper_DARWIN.
(ffi_closure_helper_DARWIN): Call ffi_closure_helper_common.
(ffi_go_closure_helper_DARWIN): Call ffi_closure_helper_common.
* src/powerpc/ffitarget.h (FFI_GO_CLOSURES): Define.
2017-01-21 Jakub Jelinek <jakub@redhat.com> 2017-01-21 Jakub Jelinek <jakub@redhat.com>
PR other/79046 PR other/79046

240
libffi/src/powerpc/aix.S
View File

@ -106,6 +106,10 @@ ffi_call_AIX:
.llong .ffi_call_AIX, TOC[tc0], 0 .llong .ffi_call_AIX, TOC[tc0], 0
.csect .text[PR] .csect .text[PR]
.ffi_call_AIX: .ffi_call_AIX:
.function .ffi_call_AIX,.ffi_call_AIX,16,044,LFE..0-LFB..0
.bf __LINE__
.line 1
LFB..0:
/* Save registers we use. */ /* Save registers we use. */
mflr r0 mflr r0
@ -115,8 +119,10 @@ ffi_call_AIX:
std r31, -8(r1) std r31, -8(r1)
std r0, 16(r1) std r0, 16(r1)
LCFI..0:
mr r28, r1 /* our AP. */ mr r28, r1 /* our AP. */
stdux r1, r1, r4 stdux r1, r1, r4
LCFI..1:
/* Save arguments over call... */ /* Save arguments over call... */
mr r31, r5 /* flags, */ mr r31, r5 /* flags, */
@ -202,12 +208,16 @@ L(fp_return_value):
L(float_return_value): L(float_return_value):
stfs f1, 0(r30) stfs f1, 0(r30)
b L(done_return_value) b L(done_return_value)
LFE..0:
#else /* ! __64BIT__ */ #else /* ! __64BIT__ */
.long .ffi_call_AIX, TOC[tc0], 0 .long .ffi_call_AIX, TOC[tc0], 0
.csect .text[PR] .csect .text[PR]
.ffi_call_AIX: .ffi_call_AIX:
.function .ffi_call_AIX,.ffi_call_AIX,16,044,LFE..0-LFB..0
.bf __LINE__
.line 1
LFB..0:
/* Save registers we use. */ /* Save registers we use. */
mflr r0 mflr r0
@ -217,8 +227,10 @@ L(float_return_value):
stw r31, -4(r1) stw r31, -4(r1)
stw r0, 8(r1) stw r0, 8(r1)
LCFI..0:
mr r28, r1 /* out AP. */ mr r28, r1 /* out AP. */
stwux r1, r1, r4 stwux r1, r1, r4
LCFI..1:
/* Save arguments over call... */ /* Save arguments over call... */
mr r31, r5 /* flags, */ mr r31, r5 /* flags, */
@ -304,11 +316,144 @@ L(fp_return_value):
L(float_return_value): L(float_return_value):
stfs f1, 0(r30) stfs f1, 0(r30)
b L(done_return_value) b L(done_return_value)
LFE..0:
#endif #endif
.ef __LINE__
.long 0 .long 0
.byte 0,0,0,1,128,4,0,0 .byte 0,0,0,1,128,4,0,0
/* END(ffi_call_AIX) */ /* END(ffi_call_AIX) */
/* void ffi_call_go_AIX(extended_cif *ecif, unsigned long bytes,
* unsigned int flags, unsigned int *rvalue,
* void (*fn)(),
* void (*prep_args)(extended_cif*, unsigned *const),
* void *closure);
* r3=ecif, r4=bytes, r5=flags, r6=rvalue, r7=fn, r8=prep_args, r9=closure
*/
.csect .text[PR]
.align 2
.globl ffi_call_go_AIX
.globl .ffi_call_go_AIX
.csect ffi_call_go_AIX[DS]
ffi_call_go_AIX:
#ifdef __64BIT__
.llong .ffi_call_go_AIX, TOC[tc0], 0
.csect .text[PR]
.ffi_call_go_AIX:
.function .ffi_call_go_AIX,.ffi_call_go_AIX,16,044,LFE..1-LFB..1
.bf __LINE__
.line 1
LFB..1:
/* Save registers we use. */
mflr r0
std r28,-32(r1)
std r29,-24(r1)
std r30,-16(r1)
std r31, -8(r1)
std r9, 8(r1) /* closure, saved in cr field. */
std r0, 16(r1)
LCFI..2:
mr r28, r1 /* our AP. */
stdux r1, r1, r4
LCFI..3:
/* Save arguments over call... */
mr r31, r5 /* flags, */
mr r30, r6 /* rvalue, */
mr r29, r7 /* function address, */
std r2, 40(r1)
/* Call ffi_prep_args. */
mr r4, r1
bl .ffi_prep_args
nop
/* Now do the call. */
ld r0, 0(r29)
ld r2, 8(r29)
ld r11, 8(r28) /* closure */
/* Set up cr1 with bits 4-7 of the flags. */
mtcrf 0x40, r31
mtctr r0
/* Load all those argument registers. */
/* We have set up a nice stack frame, just load it into registers. */
ld r3, 40+(1*8)(r1)
ld r4, 40+(2*8)(r1)
ld r5, 40+(3*8)(r1)
ld r6, 40+(4*8)(r1)
nop
ld r7, 40+(5*8)(r1)
ld r8, 40+(6*8)(r1)
ld r9, 40+(7*8)(r1)
ld r10,40+(8*8)(r1)
b L1
LFE..1:
#else /* ! __64BIT__ */
.long .ffi_call_go_AIX, TOC[tc0], 0
.csect .text[PR]
.ffi_call_go_AIX:
.function .ffi_call_go_AIX,.ffi_call_go_AIX,16,044,LFE..1-LFB..1
.bf __LINE__
.line 1
/* Save registers we use. */
LFB..1:
mflr r0
stw r28,-16(r1)
stw r29,-12(r1)
stw r30, -8(r1)
stw r31, -4(r1)
stw r9, 4(r1) /* closure, saved in cr field. */
stw r0, 8(r1)
LCFI..2:
mr r28, r1 /* out AP. */
stwux r1, r1, r4
LCFI..3:
/* Save arguments over call... */
mr r31, r5 /* flags, */
mr r30, r6 /* rvalue, */
mr r29, r7 /* function address, */
stw r2, 20(r1)
/* Call ffi_prep_args. */
mr r4, r1
bl .ffi_prep_args
nop
/* Now do the call. */
lwz r0, 0(r29)
lwz r2, 4(r29)
lwz r11, 4(r28) /* closure */
/* Set up cr1 with bits 4-7 of the flags. */
mtcrf 0x40, r31
mtctr r0
/* Load all those argument registers. */
/* We have set up a nice stack frame, just load it into registers. */
lwz r3, 20+(1*4)(r1)
lwz r4, 20+(2*4)(r1)
lwz r5, 20+(3*4)(r1)
lwz r6, 20+(4*4)(r1)
nop
lwz r7, 20+(5*4)(r1)
lwz r8, 20+(6*4)(r1)
lwz r9, 20+(7*4)(r1)
lwz r10,20+(8*4)(r1)
b L1
LFE..1:
#endif
.ef __LINE__
.long 0
.byte 0,0,0,1,128,4,0,0
/* END(ffi_call_go_AIX) */
.csect .text[PR] .csect .text[PR]
.align 2 .align 2
.globl ffi_call_DARWIN .globl ffi_call_DARWIN
@ -326,3 +471,96 @@ ffi_call_DARWIN:
.long 0 .long 0
.byte 0,0,0,0,0,0,0,0 .byte 0,0,0,0,0,0,0,0
/* END(ffi_call_DARWIN) */ /* END(ffi_call_DARWIN) */
/* EH frame stuff. */
#define LR_REGNO 0x41 /* Link Register (65), see rs6000.md */
#ifdef __64BIT__
#define PTRSIZE 8
#define LOG2_PTRSIZE 3
#define FDE_ENCODING 0x1c /* DW_EH_PE_pcrel|DW_EH_PE_sdata8 */
#define EH_DATA_ALIGN_FACT 0x78 /* LEB128 -8 */
#else
#define PTRSIZE 4
#define LOG2_PTRSIZE 2
#define FDE_ENCODING 0x1b /* DW_EH_PE_pcrel|DW_EH_PE_sdata4 */
#define EH_DATA_ALIGN_FACT 0x7c /* LEB128 -4 */
#endif
.csect _unwind.ro_[RO],4
.align LOG2_PTRSIZE
.globl _GLOBAL__F_libffi_src_powerpc_aix
_GLOBAL__F_libffi_src_powerpc_aix:
Lframe..1:
.vbyte 4,LECIE..1-LSCIE..1 /* CIE Length */
LSCIE..1:
.vbyte 4,0 /* CIE Identifier Tag */
.byte 0x3 /* CIE Version */
.byte "zR" /* CIE Augmentation */
.byte 0
.byte 0x1 /* uleb128 0x1; CIE Code Alignment Factor */
.byte EH_DATA_ALIGN_FACT /* leb128 -4/-8; CIE Data Alignment Factor */
.byte 0x41 /* CIE RA Column */
.byte 0x1 /* uleb128 0x1; Augmentation size */
.byte FDE_ENCODING /* FDE Encoding (pcrel|sdata4/8) */
.byte 0xc /* DW_CFA_def_cfa */
.byte 0x1 /* uleb128 0x1; Register r1 */
.byte 0 /* uleb128 0x0; Offset 0 */
.align LOG2_PTRSIZE
LECIE..1:
LSFDE..1:
.vbyte 4,LEFDE..1-LASFDE..1 /* FDE Length */
LASFDE..1:
.vbyte 4,LASFDE..1-Lframe..1 /* FDE CIE offset */
.vbyte PTRSIZE,LFB..0-$ /* FDE initial location */
.vbyte PTRSIZE,LFE..0-LFB..0 /* FDE address range */
.byte 0 /* uleb128 0x0; Augmentation size */
.byte 0x4 /* DW_CFA_advance_loc4 */
.vbyte 4,LCFI..0-LFB..0
.byte 0x11 /* DW_CFA_def_offset_extended_sf */
.byte LR_REGNO /* uleb128 LR_REGNO; Register LR */
.byte 0x7e /* leb128 -2; Offset -2 (8/16) */
.byte 0x9f /* DW_CFA_offset Register r31 */
.byte 0x1 /* uleb128 0x1; Offset 1 (-4/-8) */
.byte 0x9e /* DW_CFA_offset Register r30 */
.byte 0x2 /* uleb128 0x2; Offset 2 (-8/-16) */
.byte 0x9d /* DW_CFA_offset Register r29 */
.byte 0x3 /* uleb128 0x3; Offset 3 (-12/-24) */
.byte 0x9c /* DW_CFA_offset Register r28 */
.byte 0x4 /* uleb128 0x4; Offset 4 (-16/-32) */
.byte 0x4 /* DW_CFA_advance_loc4 */
.vbyte 4,LCFI..1-LCFI..0
.byte 0xd /* DW_CFA_def_cfa_register */
.byte 0x1c /* uleb128 28; Register r28 */
.align LOG2_PTRSIZE
LEFDE..1:
LSFDE..2:
.vbyte 4,LEFDE..2-LASFDE..2 /* FDE Length */
LASFDE..2:
.vbyte 4,LASFDE..2-Lframe..1 /* FDE CIE offset */
.vbyte PTRSIZE,LFB..1-$ /* FDE initial location */
.vbyte PTRSIZE,LFE..1-LFB..1 /* FDE address range */
.byte 0 /* uleb128 0x0; Augmentation size */
.byte 0x4 /* DW_CFA_advance_loc4 */
.vbyte 4,LCFI..2-LFB..1
.byte 0x11 /* DW_CFA_def_offset_extended_sf */
.byte LR_REGNO /* uleb128 LR_REGNO; Register LR */
.byte 0x7e /* leb128 -2; Offset -2 (8/16) */
.byte 0x9f /* DW_CFA_offset Register r31 */
.byte 0x1 /* uleb128 0x1; Offset 1 (-4/-8) */
.byte 0x9e /* DW_CFA_offset Register r30 */
.byte 0x2 /* uleb128 0x2; Offset 2 (-8/-16) */
.byte 0x9d /* DW_CFA_offset Register r29 */
.byte 0x3 /* uleb128 0x3; Offset 3 (-12/-24) */
.byte 0x9c /* DW_CFA_offset Register r28 */
.byte 0x4 /* uleb128 0x4; Offset 4 (-16/-32) */
.byte 0x4 /* DW_CFA_advance_loc4 */
.vbyte 4,LCFI..3-LCFI..2
.byte 0xd /* DW_CFA_def_cfa_register */
.byte 0x1c /* uleb128 28; Register r28 */
.align LOG2_PTRSIZE
LEFDE..2:
.vbyte 4,0 /* End of FDEs */
.csect .text[PR]
.ref _GLOBAL__F_libffi_src_powerpc_aix /* Prevents garbage collection by AIX linker */

253
libffi/src/powerpc/aix_closure.S
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@ -80,6 +80,7 @@
.set f21,21 .set f21,21
.extern .ffi_closure_helper_DARWIN .extern .ffi_closure_helper_DARWIN
.extern .ffi_go_closure_helper_DARWIN
#define LIBFFI_ASM #define LIBFFI_ASM
#define JUMPTARGET(name) name #define JUMPTARGET(name) name
@ -101,6 +102,10 @@ ffi_closure_ASM:
.llong .ffi_closure_ASM, TOC[tc0], 0 .llong .ffi_closure_ASM, TOC[tc0], 0
.csect .text[PR] .csect .text[PR]
.ffi_closure_ASM: .ffi_closure_ASM:
.function .ffi_closure_ASM,.ffi_closure_ASM,16,044,LFE..0-LFB..0
.bf __LINE__
.line 1
LFB..0:
/* we want to build up an area for the parameters passed */ /* we want to build up an area for the parameters passed */
/* in registers (both floating point and integer) */ /* in registers (both floating point and integer) */
@ -117,8 +122,7 @@ ffi_closure_ASM:
std r9, 48+(6*8)(r1) std r9, 48+(6*8)(r1)
std r10, 48+(7*8)(r1) std r10, 48+(7*8)(r1)
std r0, 16(r1) /* save the return address */ std r0, 16(r1) /* save the return address */
LCFI..0:
/* 48 Bytes (Linkage Area) */ /* 48 Bytes (Linkage Area) */
/* 64 Bytes (params) */ /* 64 Bytes (params) */
/* 16 Bytes (result) */ /* 16 Bytes (result) */
@ -128,6 +132,7 @@ ffi_closure_ASM:
stdu r1, -240(r1) /* skip over caller save area stdu r1, -240(r1) /* skip over caller save area
keep stack aligned to 16 */ keep stack aligned to 16 */
LCFI..1:
/* next save fpr 1 to fpr 13 (aligned to 8) */ /* next save fpr 1 to fpr 13 (aligned to 8) */
stfd f1, 128+(0*8)(r1) stfd f1, 128+(0*8)(r1)
@ -161,6 +166,8 @@ ffi_closure_ASM:
bl .ffi_closure_helper_DARWIN bl .ffi_closure_helper_DARWIN
nop nop
.Ldoneclosure:
/* now r3 contains the return type */ /* now r3 contains the return type */
/* so use it to look up in a table */ /* so use it to look up in a table */
/* so we know how to deal with each type */ /* so we know how to deal with each type */
@ -270,12 +277,17 @@ L..finish:
mtlr r0 mtlr r0
addi r1, r1, 240 addi r1, r1, 240
blr blr
LFE..0:
#else /* ! __64BIT__ */ #else /* ! __64BIT__ */
.long .ffi_closure_ASM, TOC[tc0], 0 .long .ffi_closure_ASM, TOC[tc0], 0
.csect .text[PR] .csect .text[PR]
.ffi_closure_ASM: .ffi_closure_ASM:
.function .ffi_closure_ASM,.ffi_closure_ASM,16,044,LFE..0-LFB..0
.bf __LINE__
.line 1
LFB..0:
/* we want to build up an area for the parameters passed */ /* we want to build up an area for the parameters passed */
/* in registers (both floating point and integer) */ /* in registers (both floating point and integer) */
@ -292,7 +304,7 @@ L..finish:
stw r9, 24+(6*4)(r1) stw r9, 24+(6*4)(r1)
stw r10, 24+(7*4)(r1) stw r10, 24+(7*4)(r1)
stw r0, 8(r1) stw r0, 8(r1)
LCFI..0:
/* 24 Bytes (Linkage Area) */ /* 24 Bytes (Linkage Area) */
/* 32 Bytes (params) */ /* 32 Bytes (params) */
/* 16 Bytes (result) */ /* 16 Bytes (result) */
@ -301,6 +313,7 @@ L..finish:
stwu r1, -176(r1) /* skip over caller save area stwu r1, -176(r1) /* skip over caller save area
keep stack aligned to 16 */ keep stack aligned to 16 */
LCFI..1:
/* next save fpr 1 to fpr 13 (aligned to 8) */ /* next save fpr 1 to fpr 13 (aligned to 8) */
stfd f1, 72+(0*8)(r1) stfd f1, 72+(0*8)(r1)
@ -334,6 +347,8 @@ L..finish:
bl .ffi_closure_helper_DARWIN bl .ffi_closure_helper_DARWIN
nop nop
.Ldoneclosure:
/* now r3 contains the return type */ /* now r3 contains the return type */
/* so use it to look up in a table */ /* so use it to look up in a table */
/* so we know how to deal with each type */ /* so we know how to deal with each type */
@ -443,5 +458,237 @@ L..60:
L..finish: L..finish:
addi r1, r1, 176 addi r1, r1, 176
blr blr
LFE..0:
#endif #endif
.ef __LINE__
/* END(ffi_closure_ASM) */ /* END(ffi_closure_ASM) */
.csect .text[PR]
.align 2
.globl ffi_go_closure_ASM
.globl .ffi_go_closure_ASM
.csect ffi_go_closure_ASM[DS]
ffi_go_closure_ASM:
#ifdef __64BIT__
.llong .ffi_go_closure_ASM, TOC[tc0], 0
.csect .text[PR]
.ffi_go_closure_ASM:
.function .ffi_go_closure_ASM,.ffi_go_closure_ASM,16,044,LFE..1-LFB..1
.bf __LINE__
.line 1
LFB..1:
/* we want to build up an area for the parameters passed */
/* in registers (both floating point and integer) */
/* we store gpr 3 to gpr 10 (aligned to 4)
in the parents outgoing area */
std r3, 48+(0*8)(r1)
std r4, 48+(1*8)(r1)
std r5, 48+(2*8)(r1)
std r6, 48+(3*8)(r1)
mflr r0
std r7, 48+(4*8)(r1)
std r8, 48+(5*8)(r1)
std r9, 48+(6*8)(r1)
std r10, 48+(7*8)(r1)
std r0, 16(r1) /* save the return address */
LCFI..2:
/* 48 Bytes (Linkage Area) */
/* 64 Bytes (params) */
/* 16 Bytes (result) */
/* 104 Bytes (13*8 from FPR) */
/* 8 Bytes (alignment) */
/* 240 Bytes */
stdu r1, -240(r1) /* skip over caller save area
keep stack aligned to 16 */
LCFI..3:
/* next save fpr 1 to fpr 13 (aligned to 8) */
stfd f1, 128+(0*8)(r1)
stfd f2, 128+(1*8)(r1)
stfd f3, 128+(2*8)(r1)
stfd f4, 128+(3*8)(r1)
stfd f5, 128+(4*8)(r1)
stfd f6, 128+(5*8)(r1)
stfd f7, 128+(6*8)(r1)
stfd f8, 128+(7*8)(r1)
stfd f9, 128+(8*8)(r1)
stfd f10, 128+(9*8)(r1)
stfd f11, 128+(10*8)(r1)
stfd f12, 128+(11*8)(r1)
stfd f13, 128+(12*8)(r1)
/* set up registers for the routine that actually does the work */
mr r3, r11 /* go closure */
/* now load up the pointer to the result storage */
addi r4, r1, 112
/* now load up the pointer to the saved gpr registers */
addi r5, r1, 288
/* now load up the pointer to the saved fpr registers */
addi r6, r1, 128
/* make the call */
bl .ffi_go_closure_helper_DARWIN
nop
b .Ldoneclosure
LFE..1:
#else /* ! __64BIT__ */
.long .ffi_go_closure_ASM, TOC[tc0], 0
.csect .text[PR]
.ffi_go_closure_ASM:
.function .ffi_go_closure_ASM,.ffi_go_closure_ASM,16,044,LFE..1-LFB..1
.bf __LINE__
.line 1
LFB..1:
/* we want to build up an area for the parameters passed */
/* in registers (both floating point and integer) */
/* we store gpr 3 to gpr 10 (aligned to 4)
in the parents outgoing area */
stw r3, 24+(0*4)(r1)
stw r4, 24+(1*4)(r1)
stw r5, 24+(2*4)(r1)
stw r6, 24+(3*4)(r1)
mflr r0
stw r7, 24+(4*4)(r1)
stw r8, 24+(5*4)(r1)
stw r9, 24+(6*4)(r1)
stw r10, 24+(7*4)(r1)
stw r0, 8(r1)
LCFI..2:
/* 24 Bytes (Linkage Area) */
/* 32 Bytes (params) */
/* 16 Bytes (result) */
/* 104 Bytes (13*8 from FPR) */
/* 176 Bytes */
stwu r1, -176(r1) /* skip over caller save area
keep stack aligned to 16 */
LCFI..3:
/* next save fpr 1 to fpr 13 (aligned to 8) */
stfd f1, 72+(0*8)(r1)
stfd f2, 72+(1*8)(r1)
stfd f3, 72+(2*8)(r1)
stfd f4, 72+(3*8)(r1)
stfd f5, 72+(4*8)(r1)
stfd f6, 72+(5*8)(r1)
stfd f7, 72+(6*8)(r1)
stfd f8, 72+(7*8)(r1)
stfd f9, 72+(8*8)(r1)
stfd f10, 72+(9*8)(r1)
stfd f11, 72+(10*8)(r1)
stfd f12, 72+(11*8)(r1)
stfd f13, 72+(12*8)(r1)
/* set up registers for the routine that actually does the work */
mr r3, 11 /* go closure */
/* now load up the pointer to the result storage */
addi r4, r1, 56
/* now load up the pointer to the saved gpr registers */
addi r5, r1, 200
/* now load up the pointer to the saved fpr registers */
addi r6, r1, 72
/* make the call */
bl .ffi_go_closure_helper_DARWIN
nop
b .Ldoneclosure
LFE..1:
#endif
.ef __LINE__
/* END(ffi_go_closure_ASM) */
/* EH frame stuff. */
#define LR_REGNO 0x41 /* Link Register (65), see rs6000.md */
#ifdef __64BIT__
#define PTRSIZE 8
#define LOG2_PTRSIZE 3
#define CFA_OFFSET 0xf0,0x01 /* LEB128 240 */
#define FDE_ENCODING 0x1c /* DW_EH_PE_pcrel|DW_EH_PE_sdata8 */
#define EH_DATA_ALIGN_FACT 0x78 /* LEB128 -8 */
#else
#define PTRSIZE 4
#define LOG2_PTRSIZE 2
#define CFA_OFFSET 0xb0,0x01 /* LEB128 176 */
#define FDE_ENCODING 0x1b /* DW_EH_PE_pcrel|DW_EH_PE_sdata4 */
#define EH_DATA_ALIGN_FACT 0x7c /* LEB128 -4 */
#endif
.csect _unwind.ro_[RO],4
.align LOG2_PTRSIZE
.globl _GLOBAL__F_libffi_src_powerpc_aix_closure
_GLOBAL__F_libffi_src_powerpc_aix_closure:
Lframe..1:
.vbyte 4,LECIE..1-LSCIE..1 /* CIE Length */
LSCIE..1:
.vbyte 4,0 /* CIE Identifier Tag */
.byte 0x3 /* CIE Version */
.byte "zR" /* CIE Augmentation */
.byte 0
.byte 0x1 /* uleb128 0x1; CIE Code Alignment Factor */
.byte EH_DATA_ALIGN_FACT /* leb128 -4/-8; CIE Data Alignment Factor */
.byte LR_REGNO /* CIE RA Column */
.byte 0x1 /* uleb128 0x1; Augmentation size */
.byte FDE_ENCODING /* FDE Encoding (pcrel|sdata4/8) */
.byte 0xc /* DW_CFA_def_cfa */
.byte 0x1 /* uleb128 0x1; Register r1 */
.byte 0 /* uleb128 0x0; Offset 0 */
.align LOG2_PTRSIZE
LECIE..1:
LSFDE..1:
.vbyte 4,LEFDE..1-LASFDE..1 /* FDE Length */
LASFDE..1:
.vbyte 4,LASFDE..1-Lframe..1 /* FDE CIE offset */
.vbyte PTRSIZE,LFB..0-$ /* FDE initial location */
.vbyte PTRSIZE,LFE..0-LFB..0 /* FDE address range */
.byte 0 /* uleb128 0x0; Augmentation size */
.byte 0x4 /* DW_CFA_advance_loc4 */
.vbyte 4,LCFI..1-LCFI..0
.byte 0xe /* DW_CFA_def_cfa_offset */
.byte CFA_OFFSET /* uleb128 176/240 */
.byte 0x4 /* DW_CFA_advance_loc4 */
.vbyte 4,LCFI..0-LFB..0
.byte 0x11 /* DW_CFA_offset_extended_sf */
.byte LR_REGNO /* uleb128 LR_REGNO; Register LR */
.byte 0x7e /* leb128 -2; Offset -2 (8/16) */
.align LOG2_PTRSIZE
LEFDE..1:
LSFDE..2:
.vbyte 4,LEFDE..2-LASFDE..2 /* FDE Length */
LASFDE..2:
.vbyte 4,LASFDE..2-Lframe..1 /* FDE CIE offset */
.vbyte PTRSIZE,LFB..1-$ /* FDE initial location */
.vbyte PTRSIZE,LFE..1-LFB..1 /* FDE address range */
.byte 0 /* uleb128 0x0; Augmentation size */
.byte 0x4 /* DW_CFA_advance_loc4 */
.vbyte 4,LCFI..3-LCFI..2
.byte 0xe /* DW_CFA_def_cfa_offset */
.byte CFA_OFFSET /* uleb128 176/240 */
.byte 0x4 /* DW_CFA_advance_loc4 */
.vbyte 4,LCFI..2-LFB..1
.byte 0x11 /* DW_CFA_offset_extended_sf */
.byte LR_REGNO /* uleb128 LR_REGNO; Register LR */
.byte 0x7e /* leb128 -2; Offset -2 (8/16) */
.align LOG2_PTRSIZE
LEFDE..2:
.vbyte 4,0 /* End of FDEs */
.csect .text[PR]
.ref _GLOBAL__F_libffi_src_powerpc_aix_closure /* Prevents garbage collection by AIX linker */

91
libffi/src/powerpc/ffi_darwin.c
View File

@ -33,6 +33,7 @@
#include <stdlib.h> #include <stdlib.h>
extern void ffi_closure_ASM (void); extern void ffi_closure_ASM (void);
extern void ffi_go_closure_ASM (void);
enum { enum {
/* The assembly depends on these exact flags. /* The assembly depends on these exact flags.
@ -908,6 +909,9 @@ ffi_prep_cif_machdep (ffi_cif *cif)
extern void ffi_call_AIX(extended_cif *, long, unsigned, unsigned *, extern void ffi_call_AIX(extended_cif *, long, unsigned, unsigned *,
void (*fn)(void), void (*fn2)(void)); void (*fn)(void), void (*fn2)(void));
extern void ffi_call_go_AIX(extended_cif *, long, unsigned, unsigned *,
void (*fn)(void), void (*fn2)(void), void *closure);
extern void ffi_call_DARWIN(extended_cif *, long, unsigned, unsigned *, extern void ffi_call_DARWIN(extended_cif *, long, unsigned, unsigned *,
void (*fn)(void), void (*fn2)(void), ffi_type*); void (*fn)(void), void (*fn2)(void), ffi_type*);
@ -946,6 +950,38 @@ ffi_call (ffi_cif *cif, void (*fn)(void), void *rvalue, void **avalue)
} }
} }
void
ffi_call_go (ffi_cif *cif, void (*fn) (void), void *rvalue, void **avalue,
void *closure)
{
extended_cif ecif;
ecif.cif = cif;
ecif.avalue = avalue;
/* If the return value is a struct and we don't have a return
value address then we need to make one. */
if ((rvalue == NULL) &&
(cif->rtype->type == FFI_TYPE_STRUCT))
{
ecif.rvalue = alloca (cif->rtype->size);
}
else
ecif.rvalue = rvalue;
switch (cif->abi)
{
case FFI_AIX:
ffi_call_go_AIX(&ecif, -(long)cif->bytes, cif->flags, ecif.rvalue, fn,
FFI_FN(ffi_prep_args), closure);
break;
default:
FFI_ASSERT(0);
break;
}
}
static void flush_icache(char *); static void flush_icache(char *);
static void flush_range(char *, int); static void flush_range(char *, int);
@ -1074,6 +1110,30 @@ ffi_prep_closure_loc (ffi_closure* closure,
return FFI_OK; return FFI_OK;
} }
ffi_status
ffi_prep_go_closure (ffi_go_closure* closure,
ffi_cif* cif,
void (*fun)(ffi_cif*, void*, void**, void*))
{
switch (cif->abi)
{
case FFI_AIX:
FFI_ASSERT (cif->abi == FFI_AIX);
closure->tramp = (void *)ffi_go_closure_ASM;
closure->cif = cif;
closure->fun = fun;
return FFI_OK;
// For now, ffi_prep_go_closure is only implemented for AIX, not for Darwin
default:
return FFI_BAD_ABI;
break;
}
return FFI_OK;
}
static void static void
flush_icache(char *addr) flush_icache(char *addr)
{ {
@ -1108,6 +1168,10 @@ ffi_type *
ffi_closure_helper_DARWIN (ffi_closure *, void *, ffi_closure_helper_DARWIN (ffi_closure *, void *,
unsigned long *, ffi_dblfl *); unsigned long *, ffi_dblfl *);
ffi_type *
ffi_go_closure_helper_DARWIN (ffi_go_closure*, void *,
unsigned long *, ffi_dblfl *);
/* Basically the trampoline invokes ffi_closure_ASM, and on /* Basically the trampoline invokes ffi_closure_ASM, and on
entry, r11 holds the address of the closure. entry, r11 holds the address of the closure.
After storing the registers that could possibly contain After storing the registers that could possibly contain
@ -1115,8 +1179,10 @@ ffi_closure_helper_DARWIN (ffi_closure *, void *,
up space for a return value, ffi_closure_ASM invokes the up space for a return value, ffi_closure_ASM invokes the
following helper function to do most of the work. */ following helper function to do most of the work. */
ffi_type * static ffi_type *
ffi_closure_helper_DARWIN (ffi_closure *closure, void *rvalue, ffi_closure_helper_common (ffi_cif* cif,
void (*fun)(ffi_cif*, void*, void**, void*),
void *user_data, void *rvalue,
unsigned long *pgr, ffi_dblfl *pfr) unsigned long *pgr, ffi_dblfl *pfr)
{ {
/* rvalue is the pointer to space for return value in closure assembly /* rvalue is the pointer to space for return value in closure assembly
@ -1134,14 +1200,12 @@ ffi_closure_helper_DARWIN (ffi_closure *closure, void *rvalue,
void ** avalue; void ** avalue;
ffi_type ** arg_types; ffi_type ** arg_types;
long i, avn; long i, avn;
ffi_cif * cif;
ffi_dblfl * end_pfr = pfr + NUM_FPR_ARG_REGISTERS; ffi_dblfl * end_pfr = pfr + NUM_FPR_ARG_REGISTERS;
unsigned size_al; unsigned size_al;
#if defined(POWERPC_DARWIN64) #if defined(POWERPC_DARWIN64)
unsigned fpsused = 0; unsigned fpsused = 0;
#endif #endif
cif = closure->cif;
avalue = alloca (cif->nargs * sizeof(void *)); avalue = alloca (cif->nargs * sizeof(void *));
if (cif->rtype->type == FFI_TYPE_STRUCT) if (cif->rtype->type == FFI_TYPE_STRUCT)
@ -1352,8 +1416,25 @@ ffi_closure_helper_DARWIN (ffi_closure *closure, void *rvalue,
i++; i++;
} }
(closure->fun) (cif, rvalue, avalue, closure->user_data); (fun) (cif, rvalue, avalue, user_data);
/* Tell ffi_closure_ASM to perform return type promotions. */ /* Tell ffi_closure_ASM to perform return type promotions. */
return cif->rtype; return cif->rtype;
} }
ffi_type *
ffi_closure_helper_DARWIN (ffi_closure *closure, void *rvalue,
unsigned long *pgr, ffi_dblfl *pfr)
{
return ffi_closure_helper_common (closure->cif, closure->fun,
closure->user_data, rvalue, pgr, pfr);
}
ffi_type *
ffi_go_closure_helper_DARWIN (ffi_go_closure *closure, void *rvalue,
unsigned long *pgr, ffi_dblfl *pfr)
{
return ffi_closure_helper_common (closure->cif, closure->fun,
closure, rvalue, pgr, pfr);
}

3
libffi/src/powerpc/ffitarget.h
View File

@ -142,6 +142,9 @@ typedef enum ffi_abi {
# define FFI_TARGET_SPECIFIC_VARIADIC 1 # define FFI_TARGET_SPECIFIC_VARIADIC 1
# define FFI_EXTRA_CIF_FIELDS unsigned nfixedargs # define FFI_EXTRA_CIF_FIELDS unsigned nfixedargs
#endif #endif
#if defined (POWERPC_AIX)
# define FFI_GO_CLOSURES 1
#endif
/* ppc_closure.S and linux64_closure.S expect this. */ /* ppc_closure.S and linux64_closure.S expect this. */
#define FFI_PPC_TYPE_LAST FFI_TYPE_POINTER #define FFI_PPC_TYPE_LAST FFI_TYPE_POINTER