OpenE2K/gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Import from libffi master repository.

Browse Source 
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

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>
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
.csect .text[PR]
.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. */
mflr r0
@ -115,8 +119,10 @@ ffi_call_AIX:
std r31, -8(r1)
std r0, 16(r1)
LCFI..0:
mr r28, r1 /* our AP. */
stdux r1, r1, r4
LCFI..1:
/* Save arguments over call... */
mr r31, r5 /* flags, */
@ -202,12 +208,16 @@ L(fp_return_value):
L(float_return_value):
stfs f1, 0(r30)
b L(done_return_value)
LFE..0:
#else /* ! __64BIT__ */
.long .ffi_call_AIX, TOC[tc0], 0
.csect .text[PR]
.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. */
mflr r0
@ -217,8 +227,10 @@ L(float_return_value):
stw r31, -4(r1)
stw r0, 8(r1)
LCFI..0:
mr r28, r1 /* out AP. */
stwux r1, r1, r4
LCFI..1:
/* Save arguments over call... */
mr r31, r5 /* flags, */
@ -304,11 +316,144 @@ L(fp_return_value):
L(float_return_value):
stfs f1, 0(r30)
b L(done_return_value)
LFE..0:
#endif
.ef __LINE__
.long 0
.byte 0,0,0,1,128,4,0,0
/* 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]
.align 2
.globl ffi_call_DARWIN
@ -326,3 +471,96 @@ ffi_call_DARWIN:
.long 0
.byte 0,0,0,0,0,0,0,0
/* 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
View File

@ -80,6 +80,7 @@
.set f21,21
.extern .ffi_closure_helper_DARWIN
.extern .ffi_go_closure_helper_DARWIN
#define LIBFFI_ASM
#define JUMPTARGET(name) name
@ -101,6 +102,10 @@ ffi_closure_ASM:
.llong .ffi_closure_ASM, TOC[tc0], 0
.csect .text[PR]
.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 */
/* in registers (both floating point and integer) */
@ -117,8 +122,7 @@ ffi_closure_ASM:
std r9, 48+(6*8)(r1)
std r10, 48+(7*8)(r1)
std r0, 16(r1) /* save the return address */
LCFI..0:
/* 48 Bytes (Linkage Area) */
/* 64 Bytes (params) */
/* 16 Bytes (result) */
@ -128,6 +132,7 @@ ffi_closure_ASM:
stdu r1, -240(r1) /* skip over caller save area
keep stack aligned to 16 */
LCFI..1:
/* next save fpr 1 to fpr 13 (aligned to 8) */
stfd f1, 128+(0*8)(r1)
@ -161,6 +166,8 @@ ffi_closure_ASM:
bl .ffi_closure_helper_DARWIN
nop
.Ldoneclosure:
/* now r3 contains the return type */
/* so use it to look up in a table */
/* so we know how to deal with each type */
@ -270,12 +277,17 @@ L..finish:
mtlr r0
addi r1, r1, 240
blr
LFE..0:
#else /* ! __64BIT__ */
.long .ffi_closure_ASM, TOC[tc0], 0
.csect .text[PR]
.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 */
/* in registers (both floating point and integer) */
@ -292,7 +304,7 @@ L..finish:
stw r9, 24+(6*4)(r1)
stw r10, 24+(7*4)(r1)
stw r0, 8(r1)
LCFI..0:
/* 24 Bytes (Linkage Area) */
/* 32 Bytes (params) */
/* 16 Bytes (result) */
@ -301,6 +313,7 @@ L..finish:
stwu r1, -176(r1) /* skip over caller save area
keep stack aligned to 16 */
LCFI..1:
/* next save fpr 1 to fpr 13 (aligned to 8) */
stfd f1, 72+(0*8)(r1)
@ -334,6 +347,8 @@ L..finish:
bl .ffi_closure_helper_DARWIN
nop
.Ldoneclosure:
/* now r3 contains the return type */
/* so use it to look up in a table */
/* so we know how to deal with each type */
@ -443,5 +458,237 @@ L..60:
L..finish:
addi r1, r1, 176
blr
LFE..0:
#endif
.ef __LINE__
/* 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>
extern void ffi_closure_ASM (void);
extern void ffi_go_closure_ASM (void);
enum {
/* 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 *,
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 *,
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_range(char *, int);
@ -1074,6 +1110,30 @@ ffi_prep_closure_loc (ffi_closure* closure,
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
flush_icache(char *addr)
{
@ -1108,6 +1168,10 @@ ffi_type *
ffi_closure_helper_DARWIN (ffi_closure *, void *,
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
entry, r11 holds the address of the closure.
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
following helper function to do most of the work. */
ffi_type *
ffi_closure_helper_DARWIN (ffi_closure *closure, void *rvalue,
static ffi_type *
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)
{
/* 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;
ffi_type ** arg_types;
long i, avn;
ffi_cif * cif;
ffi_dblfl * end_pfr = pfr + NUM_FPR_ARG_REGISTERS;
unsigned size_al;
#if defined(POWERPC_DARWIN64)
unsigned fpsused = 0;
#endif
cif = closure->cif;
avalue = alloca (cif->nargs * sizeof(void *));
if (cif->rtype->type == FFI_TYPE_STRUCT)
@ -1352,8 +1416,25 @@ ffi_closure_helper_DARWIN (ffi_closure *closure, void *rvalue,
i++;
}
(closure->fun) (cif, rvalue, avalue, closure->user_data);
(fun) (cif, rvalue, avalue, user_data);
/* Tell ffi_closure_ASM to perform return type promotions. */
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_EXTRA_CIF_FIELDS unsigned nfixedargs
#endif
#if defined (POWERPC_AIX)
# define FFI_GO_CLOSURES 1
#endif
/* ppc_closure.S and linux64_closure.S expect this. */
#define FFI_PPC_TYPE_LAST FFI_TYPE_POINTER