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-rw-r--r--libffi/src/alpha/ffi.c252
-rw-r--r--libffi/src/alpha/ffitarget.h48
-rw-r--r--libffi/src/alpha/osf.S355
3 files changed, 655 insertions, 0 deletions
diff --git a/libffi/src/alpha/ffi.c b/libffi/src/alpha/ffi.c
new file mode 100644
index 0000000..00d3379
--- /dev/null
+++ b/libffi/src/alpha/ffi.c
@@ -0,0 +1,252 @@
+/* -----------------------------------------------------------------------
+ ffi.c - Copyright (c) 1998, 2001 Red Hat, Inc.
+
+ Alpha 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 CYGNUS SOLUTIONS 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.
+ ----------------------------------------------------------------------- */
+
+#include <ffi.h>
+#include <ffi_common.h>
+
+#include <stdlib.h>
+
+extern void ffi_call_osf(void *, unsigned long, unsigned, void *, void (*)());
+extern void ffi_closure_osf(void);
+
+
+ffi_status
+ffi_prep_cif_machdep(ffi_cif *cif)
+{
+ /* Adjust cif->bytes to represent a minimum 6 words for the temporary
+ register argument loading area. */
+ if (cif->bytes < 6*FFI_SIZEOF_ARG)
+ cif->bytes = 6*FFI_SIZEOF_ARG;
+
+ /* Set the return type flag */
+ switch (cif->rtype->type)
+ {
+ case FFI_TYPE_STRUCT:
+ case FFI_TYPE_FLOAT:
+ case FFI_TYPE_DOUBLE:
+ cif->flags = cif->rtype->type;
+ break;
+
+ default:
+ cif->flags = FFI_TYPE_INT;
+ break;
+ }
+
+ return FFI_OK;
+}
+
+void
+ffi_call(ffi_cif *cif, void (*fn)(), void *rvalue, void **avalue)
+{
+ unsigned long *stack, *argp;
+ long i, avn;
+ ffi_type **arg_types;
+
+ FFI_ASSERT (cif->abi == FFI_OSF);
+
+ /* 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->flags == FFI_TYPE_STRUCT)
+ rvalue = alloca(cif->rtype->size);
+
+ /* Allocate the space for the arguments, plus 4 words of temp
+ space for ffi_call_osf. */
+ argp = stack = alloca(cif->bytes + 4*FFI_SIZEOF_ARG);
+
+ if (cif->flags == FFI_TYPE_STRUCT)
+ *(void **) argp++ = rvalue;
+
+ i = 0;
+ avn = cif->nargs;
+ arg_types = cif->arg_types;
+
+ while (i < avn)
+ {
+ switch ((*arg_types)->type)
+ {
+ case FFI_TYPE_SINT8:
+ *(SINT64 *) argp = *(SINT8 *)(* avalue);
+ break;
+
+ case FFI_TYPE_UINT8:
+ *(SINT64 *) argp = *(UINT8 *)(* avalue);
+ break;
+
+ case FFI_TYPE_SINT16:
+ *(SINT64 *) argp = *(SINT16 *)(* avalue);
+ break;
+
+ case FFI_TYPE_UINT16:
+ *(SINT64 *) argp = *(UINT16 *)(* avalue);
+ break;
+
+ case FFI_TYPE_SINT32:
+ case FFI_TYPE_UINT32:
+ /* Note that unsigned 32-bit quantities are sign extended. */
+ *(SINT64 *) argp = *(SINT32 *)(* avalue);
+ break;
+
+ case FFI_TYPE_SINT64:
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_POINTER:
+ *(UINT64 *) argp = *(UINT64 *)(* avalue);
+ break;
+
+ case FFI_TYPE_FLOAT:
+ if (argp - stack < 6)
+ {
+ /* Note the conversion -- all the fp regs are loaded as
+ doubles. The in-register format is the same. */
+ *(double *) argp = *(float *)(* avalue);
+ }
+ else
+ *(float *) argp = *(float *)(* avalue);
+ break;
+
+ case FFI_TYPE_DOUBLE:
+ *(double *) argp = *(double *)(* avalue);
+ break;
+
+ case FFI_TYPE_STRUCT:
+ memcpy(argp, *avalue, (*arg_types)->size);
+ break;
+
+ default:
+ FFI_ASSERT(0);
+ }
+
+ argp += ALIGN((*arg_types)->size, FFI_SIZEOF_ARG) / FFI_SIZEOF_ARG;
+ i++, arg_types++, avalue++;
+ }
+
+ ffi_call_osf(stack, cif->bytes, cif->flags, rvalue, fn);
+}
+
+
+ffi_status
+ffi_prep_closure (ffi_closure* closure,
+ ffi_cif* cif,
+ void (*fun)(ffi_cif*, void*, void**, void*),
+ void *user_data)
+{
+ unsigned int *tramp;
+
+ FFI_ASSERT (cif->abi == FFI_OSF);
+
+ tramp = (unsigned int *) &closure->tramp[0];
+ tramp[0] = 0x47fb0401; /* mov $27,$1 */
+ tramp[1] = 0xa77b0010; /* ldq $27,16($27) */
+ tramp[2] = 0x6bfb0000; /* jmp $31,($27),0 */
+ tramp[3] = 0x47ff041f; /* nop */
+ *(void **) &tramp[4] = ffi_closure_osf;
+
+ closure->cif = cif;
+ closure->fun = fun;
+ closure->user_data = user_data;
+
+ /* Flush the Icache.
+
+ Tru64 UNIX as doesn't understand the imb mnemonic, so use call_pal
+ instead, since both Compaq as and gas can handle it.
+
+ 0x86 is PAL_imb in Tru64 UNIX <alpha/pal.h>. */
+ asm volatile ("call_pal 0x86" : : : "memory");
+
+ return FFI_OK;
+}
+
+int
+ffi_closure_osf_inner(ffi_closure *closure, void *rvalue, unsigned long *argp)
+{
+ ffi_cif *cif;
+ void **avalue;
+ ffi_type **arg_types;
+ long i, avn, argn;
+
+ cif = closure->cif;
+ avalue = alloca(cif->nargs * sizeof(void *));
+
+ argn = 0;
+
+ /* Copy the caller's structure return address to that the closure
+ returns the data directly to the caller. */
+ if (cif->flags == FFI_TYPE_STRUCT)
+ {
+ rvalue = (void *) argp[0];
+ argn = 1;
+ }
+
+ i = 0;
+ avn = cif->nargs;
+ arg_types = cif->arg_types;
+
+ /* Grab the addresses of the arguments from the stack frame. */
+ while (i < avn)
+ {
+ switch (arg_types[i]->type)
+ {
+ case FFI_TYPE_SINT8:
+ case FFI_TYPE_UINT8:
+ case FFI_TYPE_SINT16:
+ case FFI_TYPE_UINT16:
+ case FFI_TYPE_SINT32:
+ case FFI_TYPE_UINT32:
+ case FFI_TYPE_SINT64:
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_POINTER:
+ case FFI_TYPE_STRUCT:
+ avalue[i] = &argp[argn];
+ break;
+
+ case FFI_TYPE_FLOAT:
+ if (argn < 6)
+ {
+ /* Floats coming from registers need conversion from double
+ back to float format. */
+ *(float *)&argp[argn - 6] = *(double *)&argp[argn - 6];
+ avalue[i] = &argp[argn - 6];
+ }
+ else
+ avalue[i] = &argp[argn];
+ break;
+
+ case FFI_TYPE_DOUBLE:
+ avalue[i] = &argp[argn - (argn < 6 ? 6 : 0)];
+ break;
+
+ default:
+ FFI_ASSERT(0);
+ }
+
+ argn += ALIGN(arg_types[i]->size, FFI_SIZEOF_ARG) / FFI_SIZEOF_ARG;
+ i++;
+ }
+
+ /* Invoke the closure. */
+ (closure->fun) (cif, rvalue, avalue, closure->user_data);
+
+ /* Tell ffi_closure_osf how to perform return type promotions. */
+ return cif->rtype->type;
+}
diff --git a/libffi/src/alpha/ffitarget.h b/libffi/src/alpha/ffitarget.h
new file mode 100644
index 0000000..00a1217
--- /dev/null
+++ b/libffi/src/alpha/ffitarget.h
@@ -0,0 +1,48 @@
+/* -----------------------------------------------------------------*-C-*-
+ ffitarget.h - Copyright (c) 1996-2003 Red Hat, Inc.
+ Target configuration macros for Alpha.
+
+ 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 CYGNUS SOLUTIONS 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.
+
+ ----------------------------------------------------------------------- */
+
+#ifndef LIBFFI_TARGET_H
+#define LIBFFI_TARGET_H
+
+#ifndef LIBFFI_ASM
+typedef unsigned long ffi_arg;
+typedef signed long ffi_sarg;
+
+typedef enum ffi_abi {
+ FFI_FIRST_ABI = 0,
+ FFI_OSF,
+ FFI_DEFAULT_ABI = FFI_OSF,
+ FFI_LAST_ABI = FFI_DEFAULT_ABI + 1
+} ffi_abi;
+#endif
+
+/* ---- Definitions for closures ----------------------------------------- */
+
+#define FFI_CLOSURES 1
+#define FFI_TRAMPOLINE_SIZE 24
+#define FFI_NATIVE_RAW_API 0
+
+#endif
+
diff --git a/libffi/src/alpha/osf.S b/libffi/src/alpha/osf.S
new file mode 100644
index 0000000..cfa7a96
--- /dev/null
+++ b/libffi/src/alpha/osf.S
@@ -0,0 +1,355 @@
+/* -----------------------------------------------------------------------
+ osf.S - Copyright (c) 1998, 2001 Red Hat
+
+ Alpha/OSF Foreign Function Interface
+
+ $Id: osf.S,v 1.1.1.1 1998/11/29 16:48:16 green Exp $
+
+ 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 CYGNUS SOLUTIONS 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>
+
+ .arch ev6
+ .text
+
+/* ffi_call_osf (void *args, unsigned long bytes, unsigned flags,
+ void *raddr, void (*fnaddr)());
+
+ Bit o trickiness here -- ARGS+BYTES is the base of the stack frame
+ for this function. This has been allocated by ffi_call. We also
+ deallocate some of the stack that has been alloca'd. */
+
+ .align 3
+ .globl ffi_call_osf
+ .ent ffi_call_osf
+ffi_call_osf:
+ .frame $15, 32, $26, 0
+ .mask 0x4008000, -32
+$LFB1:
+ addq $16,$17,$1
+ mov $16, $30
+ stq $26, 0($1)
+$LCFI0:
+ stq $15, 8($1)
+$LCFI1:
+ stq $18, 16($1)
+ mov $1, $15
+$LCFI2:
+ .prologue 0
+
+ stq $19, 24($1)
+ mov $20, $27
+
+ # Load up all of the (potential) argument registers.
+ ldq $16, 0($30)
+ ldt $f16, 0($30)
+ ldt $f17, 8($30)
+ ldq $17, 8($30)
+ ldt $f18, 16($30)
+ ldq $18, 16($30)
+ ldt $f19, 24($30)
+ ldq $19, 24($30)
+ ldt $f20, 32($30)
+ ldq $20, 32($30)
+ ldt $f21, 40($30)
+ ldq $21, 40($30)
+
+ # Deallocate the register argument area.
+ lda $30, 48($30)
+
+ jsr $26, ($27), 0
+ ldgp $29, 0($26)
+
+ # If the return value pointer is NULL, assume no return value.
+ ldq $19, 24($15)
+ ldq $18, 16($15)
+ ldq $26, 0($15)
+ beq $19, $noretval
+
+ # Store the return value out in the proper type.
+ cmpeq $18, FFI_TYPE_INT, $1
+ bne $1, $retint
+ cmpeq $18, FFI_TYPE_FLOAT, $2
+ bne $2, $retfloat
+ cmpeq $18, FFI_TYPE_DOUBLE, $3
+ bne $3, $retdouble
+
+$noretval:
+ ldq $15, 8($15)
+ ret
+
+$retint:
+ stq $0, 0($19)
+ nop
+ ldq $15, 8($15)
+ ret
+
+$retfloat:
+ sts $f0, 0($19)
+ nop
+ ldq $15, 8($15)
+ ret
+
+$retdouble:
+ stt $f0, 0($19)
+ nop
+ ldq $15, 8($15)
+ ret
+$LFE1:
+
+ .end ffi_call_osf
+
+/* ffi_closure_osf(...)
+
+ Receives the closure argument in $1. */
+
+ .align 3
+ .globl ffi_closure_osf
+ .ent ffi_closure_osf
+ffi_closure_osf:
+ .frame $30, 16*8, $26, 0
+ .mask 0x4000000, -16*8
+$LFB2:
+ ldgp $29, 0($27)
+ subq $30, 16*8, $30
+$LCFI5:
+ stq $26, 0($30)
+$LCFI6:
+ .prologue 1
+
+ # Store all of the potential argument registers in va_list format.
+ stt $f16, 4*8($30)
+ stt $f17, 5*8($30)
+ stt $f18, 6*8($30)
+ stt $f19, 7*8($30)
+ stt $f20, 8*8($30)
+ stt $f21, 9*8($30)
+ stq $16, 10*8($30)
+ stq $17, 11*8($30)
+ stq $18, 12*8($30)
+ stq $19, 13*8($30)
+ stq $20, 14*8($30)
+ stq $21, 15*8($30)
+
+ # Call ffi_closure_osf_inner to do the bulk of the work.
+ mov $1, $16
+ lda $17, 2*8($30)
+ lda $18, 10*8($30)
+ jsr $26, ffi_closure_osf_inner
+ ldgp $29, 0($26)
+ ldq $26, 0($30)
+
+ # Load up the return value in the proper type.
+ lda $1, $load_table
+ s4addq $0, $1, $1
+ ldl $1, 0($1)
+ addq $1, $29, $1
+ jmp $31, ($1), $load_32
+
+ .align 4
+$load_none:
+ addq $30, 16*8, $30
+ ret
+
+ .align 4
+$load_float:
+ lds $f0, 16($30)
+ nop
+ addq $30, 16*8, $30
+ ret
+
+ .align 4
+$load_double:
+ ldt $f0, 16($30)
+ nop
+ addq $30, 16*8, $30
+ ret
+
+ .align 4
+$load_u8:
+#ifdef __alpha_bwx__
+ ldbu $0, 16($30)
+ nop
+#else
+ ldq $0, 16($30)
+ and $0, 255, $0
+#endif
+ addq $30, 16*8, $30
+ ret
+
+ .align 4
+$load_s8:
+#ifdef __alpha_bwx__
+ ldbu $0, 16($30)
+ sextb $0, $0
+#else
+ ldq $0, 16($30)
+ sll $0, 56, $0
+ sra $0, 56, $0
+#endif
+ addq $30, 16*8, $30
+ ret
+
+ .align 4
+$load_u16:
+#ifdef __alpha_bwx__
+ ldwu $0, 16($30)
+ nop
+#else
+ ldq $0, 16($30)
+ zapnot $0, 3, $0
+#endif
+ addq $30, 16*8, $30
+ ret
+
+ .align 4
+$load_s16:
+#ifdef __alpha_bwx__
+ ldwu $0, 16($30)
+ sextw $0, $0
+#else
+ ldq $0, 16($30)
+ sll $0, 48, $0
+ sra $0, 48, $0
+#endif
+ addq $30, 16*8, $30
+ ret
+
+ .align 4
+$load_32:
+ ldl $0, 16($30)
+ nop
+ addq $30, 16*8, $30
+ ret
+
+ .align 4
+$load_64:
+ ldq $0, 16($30)
+ nop
+ addq $30, 16*8, $30
+ ret
+$LFE2:
+
+ .end ffi_closure_osf
+
+#ifdef __ELF__
+.section .rodata
+#else
+.rdata
+#endif
+$load_table:
+ .gprel32 $load_none # FFI_TYPE_VOID
+ .gprel32 $load_32 # FFI_TYPE_INT
+ .gprel32 $load_float # FFI_TYPE_FLOAT
+ .gprel32 $load_double # FFI_TYPE_DOUBLE
+ .gprel32 $load_double # FFI_TYPE_LONGDOUBLE
+ .gprel32 $load_u8 # FFI_TYPE_UINT8
+ .gprel32 $load_s8 # FFI_TYPE_SINT8
+ .gprel32 $load_u16 # FFI_TYPE_UINT16
+ .gprel32 $load_s16 # FFI_TYPE_SINT16
+ .gprel32 $load_32 # FFI_TYPE_UINT32
+ .gprel32 $load_32 # FFI_TYPE_SINT32
+ .gprel32 $load_64 # FFI_TYPE_UINT64
+ .gprel32 $load_64 # FFI_TYPE_SINT64
+ .gprel32 $load_none # FFI_TYPE_STRUCT
+ .gprel32 $load_64 # FFI_TYPE_POINTER
+
+/* Assert that the table above is in sync with ffi.h. */
+
+#if FFI_TYPE_FLOAT != 2 \
+ || FFI_TYPE_DOUBLE != 3 \
+ || FFI_TYPE_UINT8 != 5 \
+ || FFI_TYPE_SINT8 != 6 \
+ || FFI_TYPE_UINT16 != 7 \
+ || FFI_TYPE_SINT16 != 8 \
+ || FFI_TYPE_UINT32 != 9 \
+ || FFI_TYPE_SINT32 != 10 \
+ || FFI_TYPE_UINT64 != 11 \
+ || FFI_TYPE_SINT64 != 12 \
+ || FFI_TYPE_STRUCT != 13 \
+ || FFI_TYPE_POINTER != 14 \
+ || FFI_TYPE_LAST != 14
+#error "osf.S out of sync with ffi.h"
+#endif
+
+#ifdef __ELF__
+ .section .eh_frame,EH_FRAME_FLAGS,@progbits
+__FRAME_BEGIN__:
+ .4byte $LECIE1-$LSCIE1 # Length of Common Information Entry
+$LSCIE1:
+ .4byte 0x0 # CIE Identifier Tag
+ .byte 0x1 # CIE Version
+ .ascii "zR\0" # CIE Augmentation
+ .byte 0x1 # uleb128 0x1; CIE Code Alignment Factor
+ .byte 0x78 # sleb128 -8; CIE Data Alignment Factor
+ .byte 0x1a # CIE RA Column
+ .byte 0x1 # uleb128 0x1; Augmentation size
+ .byte 0x1b # FDE Encoding (pcrel sdata4)
+ .byte 0xc # DW_CFA_def_cfa
+ .byte 0x1e # uleb128 0x1e
+ .byte 0x0 # uleb128 0x0
+ .align 3
+$LECIE1:
+$LSFDE1:
+ .4byte $LEFDE1-$LASFDE1 # FDE Length
+$LASFDE1:
+ .4byte $LASFDE1-__FRAME_BEGIN__ # FDE CIE offset
+ .4byte $LFB1-. # FDE initial location
+ .4byte $LFE1-$LFB1 # FDE address range
+ .byte 0x0 # uleb128 0x0; Augmentation size
+ .byte 0x4 # DW_CFA_advance_loc4
+ .4byte $LCFI0-$LFB1
+ .byte 0xe # DW_CFA_def_cfa_offset
+ .byte 0x30 # uleb128 0x30
+ .byte 0x4 # DW_CFA_advance_loc4
+ .4byte $LCFI1-$LCFI0
+ .byte 0x9a # DW_CFA_offset, column 0x1a
+ .byte 0x6 # uleb128 0x6
+ .byte 0x8f # DW_CFA_offset, column 0xf
+ .byte 0x5 # uleb128 0x5
+ .byte 0x4 # DW_CFA_advance_loc4
+ .4byte $LCFI2-$LCFI1
+ .byte 0xc # DW_CFA_def_cfa
+ .byte 0xf # uleb128 0xf
+ .byte 0x30 # uleb128 0x30
+ .align 3
+$LEFDE1:
+
+$LSFDE3:
+ .4byte $LEFDE3-$LASFDE3 # FDE Length
+$LASFDE3:
+ .4byte $LASFDE3-__FRAME_BEGIN__ # FDE CIE offset
+ .4byte $LFB2-. # FDE initial location
+ .4byte $LFE2-$LFB2 # FDE address range
+ .byte 0x0 # uleb128 0x0; Augmentation size
+ .byte 0x4 # DW_CFA_advance_loc4
+ .4byte $LCFI5-$LFB2
+ .byte 0xe # DW_CFA_def_cfa_offset
+ .byte 0x90,0x1 # uleb128 0x90
+ .byte 0x4 # DW_CFA_advance_loc4
+ .4byte $LCFI6-$LCFI5
+ .byte 0x9a # DW_CFA_offset, column 0x1a
+ .byte 0x12 # uleb128 0x12
+ .align 3
+$LEFDE3:
+#endif
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