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authorJing Yu <jingyu@google.com>2009-11-05 15:11:04 -0800
committerJing Yu <jingyu@google.com>2009-11-05 15:11:04 -0800
commitdf62c1c110e8532b995b23540b7e3695729c0779 (patch)
treedbbd4cbdb50ac38011e058a2533ee4c3168b0205 /gcc-4.2.1/libffi/src/arm
parent8d401cf711539af5a2f78d12447341d774892618 (diff)
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Check in gcc sources for prebuilt toolchains in Eclair.
Diffstat (limited to 'gcc-4.2.1/libffi/src/arm')
-rw-r--r--gcc-4.2.1/libffi/src/arm/ffi.c170
-rw-r--r--gcc-4.2.1/libffi/src/arm/ffitarget.h47
-rw-r--r--gcc-4.2.1/libffi/src/arm/sysv.S209
3 files changed, 426 insertions, 0 deletions
diff --git a/gcc-4.2.1/libffi/src/arm/ffi.c b/gcc-4.2.1/libffi/src/arm/ffi.c
new file mode 100644
index 000000000..4a5edd3a5
--- /dev/null
+++ b/gcc-4.2.1/libffi/src/arm/ffi.c
@@ -0,0 +1,170 @@
+/* -----------------------------------------------------------------------
+ ffi.c - Copyright (c) 1998 Red Hat, Inc.
+
+ ARM 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>
+
+/* ffi_prep_args is called by the assembly routine once stack space
+ has been allocated for the function's arguments */
+
+void ffi_prep_args(char *stack, extended_cif *ecif)
+{
+ register unsigned int i;
+ register void **p_argv;
+ register char *argp;
+ register ffi_type **p_arg;
+
+ argp = stack;
+
+ if ( ecif->cif->rtype->type == FFI_TYPE_STRUCT ) {
+ *(void **) argp = ecif->rvalue;
+ argp += 4;
+ }
+
+ p_argv = ecif->avalue;
+
+ for (i = ecif->cif->nargs, p_arg = ecif->cif->arg_types;
+ (i != 0);
+ i--, p_arg++)
+ {
+ size_t z;
+
+ /* Align if necessary */
+ if (((*p_arg)->alignment - 1) & (unsigned) argp) {
+ argp = (char *) ALIGN(argp, (*p_arg)->alignment);
+ }
+
+ z = (*p_arg)->size;
+ if (z < sizeof(int))
+ {
+ z = sizeof(int);
+ switch ((*p_arg)->type)
+ {
+ case FFI_TYPE_SINT8:
+ *(signed int *) argp = (signed int)*(SINT8 *)(* p_argv);
+ break;
+
+ case FFI_TYPE_UINT8:
+ *(unsigned int *) argp = (unsigned int)*(UINT8 *)(* p_argv);
+ break;
+
+ case FFI_TYPE_SINT16:
+ *(signed int *) argp = (signed int)*(SINT16 *)(* p_argv);
+ break;
+
+ case FFI_TYPE_UINT16:
+ *(unsigned int *) argp = (unsigned int)*(UINT16 *)(* p_argv);
+ break;
+
+ case FFI_TYPE_STRUCT:
+ *(unsigned int *) argp = (unsigned int)*(UINT32 *)(* p_argv);
+ break;
+
+ default:
+ FFI_ASSERT(0);
+ }
+ }
+ else if (z == sizeof(int))
+ {
+ *(unsigned int *) argp = (unsigned int)*(UINT32 *)(* p_argv);
+ }
+ else
+ {
+ memcpy(argp, *p_argv, z);
+ }
+ p_argv++;
+ argp += z;
+ }
+
+ return;
+}
+
+/* Perform machine dependent cif processing */
+ffi_status ffi_prep_cif_machdep(ffi_cif *cif)
+{
+ /* Round the stack up to a multiple of 8 bytes. This isn't needed
+ everywhere, but it is on some platforms, and it doesn't harm anything
+ when it isn't needed. */
+ cif->bytes = (cif->bytes + 7) & ~7;
+
+ /* Set the return type flag */
+ switch (cif->rtype->type)
+ {
+ case FFI_TYPE_VOID:
+ case FFI_TYPE_STRUCT:
+ case FFI_TYPE_FLOAT:
+ case FFI_TYPE_DOUBLE:
+ cif->flags = (unsigned) cif->rtype->type;
+ break;
+
+ case FFI_TYPE_SINT64:
+ case FFI_TYPE_UINT64:
+ cif->flags = (unsigned) FFI_TYPE_SINT64;
+ break;
+
+ default:
+ cif->flags = FFI_TYPE_INT;
+ break;
+ }
+
+ return FFI_OK;
+}
+
+extern void ffi_call_SYSV(void (*)(char *, extended_cif *), extended_cif *,
+ unsigned, unsigned, unsigned *, void (*fn)());
+
+void ffi_call(ffi_cif *cif, void (*fn)(), void *rvalue, void **avalue)
+{
+ 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_SYSV:
+ ffi_call_SYSV(ffi_prep_args, &ecif, cif->bytes, cif->flags, ecif.rvalue,
+ fn);
+
+ break;
+ default:
+ FFI_ASSERT(0);
+ break;
+ }
+}
diff --git a/gcc-4.2.1/libffi/src/arm/ffitarget.h b/gcc-4.2.1/libffi/src/arm/ffitarget.h
new file mode 100644
index 000000000..96f4bb2f2
--- /dev/null
+++ b/gcc-4.2.1/libffi/src/arm/ffitarget.h
@@ -0,0 +1,47 @@
+/* -----------------------------------------------------------------*-C-*-
+ ffitarget.h - Copyright (c) 1996-2003 Red Hat, Inc.
+ Target configuration macros for ARM.
+
+ 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_SYSV,
+ FFI_DEFAULT_ABI = FFI_SYSV,
+ FFI_LAST_ABI = FFI_DEFAULT_ABI + 1
+} ffi_abi;
+#endif
+
+/* ---- Definitions for closures ----------------------------------------- */
+
+#define FFI_CLOSURES 0
+#define FFI_NATIVE_RAW_API 0
+
+#endif
+
diff --git a/gcc-4.2.1/libffi/src/arm/sysv.S b/gcc-4.2.1/libffi/src/arm/sysv.S
new file mode 100644
index 000000000..c3471a8a2
--- /dev/null
+++ b/gcc-4.2.1/libffi/src/arm/sysv.S
@@ -0,0 +1,209 @@
+/* -----------------------------------------------------------------------
+ sysv.S - Copyright (c) 1998 Red Hat, Inc.
+
+ ARM 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.
+ ----------------------------------------------------------------------- */
+
+#define LIBFFI_ASM
+#include <fficonfig.h>
+#include <ffi.h>
+#ifdef HAVE_MACHINE_ASM_H
+#include <machine/asm.h>
+#else
+#ifdef __USER_LABEL_PREFIX__
+#define CONCAT1(a, b) CONCAT2(a, b)
+#define CONCAT2(a, b) a ## b
+
+/* Use the right prefix for global labels. */
+#define CNAME(x) CONCAT1 (__USER_LABEL_PREFIX__, x)
+#else
+#define CNAME(x) x
+#endif
+#define ENTRY(x) .globl CNAME(x); .type CNAME(x),%function; CNAME(x):
+#endif
+
+#ifdef __ELF__
+#define LSYM(x) .x
+#else
+#define LSYM(x) x
+#endif
+
+/* We need a better way of testing for this, but for now, this is all
+ we can do. */
+@ This selects the minimum architecture level required.
+#define __ARM_ARCH__ 3
+
+#if defined(__ARM_ARCH_4__) || defined(__ARM_ARCH_4T__)
+# undef __ARM_ARCH__
+# define __ARM_ARCH__ 4
+#endif
+
+#if defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5T__) \
+ || defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) \
+ || defined(__ARM_ARCH_5TEJ__)
+# undef __ARM_ARCH__
+# define __ARM_ARCH__ 5
+#endif
+
+#if defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) \
+ || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) \
+ || defined(__ARM_ARCH_6ZK__)
+# undef __ARM_ARCH__
+# define __ARM_ARCH__ 6
+#endif
+
+#if __ARM_ARCH__ >= 5
+# define call_reg(x) blx x
+#elif defined (__ARM_ARCH_4T__)
+# define call_reg(x) mov lr, pc ; bx x
+# if defined(__thumb__) || defined(__THUMB_INTERWORK__)
+# define __INTERWORKING__
+# endif
+#else
+# define call_reg(x) mov lr, pc ; mov pc, x
+#endif
+
+#if defined(__thumb__) && !defined(__THUMB_INTERWORK__)
+.macro ARM_FUNC_START name
+ .text
+ .align 0
+ .thumb
+ .thumb_func
+ ENTRY(\name)
+ bx pc
+ nop
+ .arm
+/* A hook to tell gdb that we've switched to ARM mode. Also used to call
+ directly from other local arm routines. */
+_L__\name:
+.endm
+#else
+.macro ARM_FUNC_START name
+ .text
+ .align 0
+ .arm
+ ENTRY(\name)
+.endm
+#endif
+
+.macro RETLDM regs=, cond=, dirn=ia
+#if defined (__INTERWORKING__)
+ .ifc "\regs",""
+ ldr\cond lr, [sp], #4
+ .else
+ ldm\cond\dirn sp!, {\regs, lr}
+ .endif
+ bx\cond lr
+#else
+ .ifc "\regs",""
+ ldr\cond pc, [sp], #4
+ .else
+ ldm\cond\dirn sp!, {\regs, pc}
+ .endif
+#endif
+.endm
+
+
+ @ r0: ffi_prep_args
+ @ r1: &ecif
+ @ r2: cif->bytes
+ @ r3: fig->flags
+ @ sp+0: ecif.rvalue
+ @ sp+4: fn
+
+ @ This assumes we are using gas.
+ARM_FUNC_START ffi_call_SYSV
+ @ Save registers
+ stmfd sp!, {r0-r3, fp, lr}
+ mov fp, sp
+
+ @ Make room for all of the new args.
+ sub sp, fp, r2
+
+ @ Place all of the ffi_prep_args in position
+ mov ip, r0
+ mov r0, sp
+ @ r1 already set
+
+ @ Call ffi_prep_args(stack, &ecif)
+ call_reg(ip)
+
+ @ move first 4 parameters in registers
+ ldmia sp, {r0-r3}
+
+ @ and adjust stack
+ ldr ip, [fp, #8]
+ cmp ip, #16
+ movhs ip, #16
+ add sp, sp, ip
+
+ @ call (fn) (...)
+ ldr ip, [fp, #28]
+ call_reg(ip)
+
+ @ Remove the space we pushed for the args
+ mov sp, fp
+
+ @ Load r2 with the pointer to storage for the return value
+ ldr r2, [sp, #24]
+
+ @ Load r3 with the return type code
+ ldr r3, [sp, #12]
+
+ @ If the return value pointer is NULL, assume no return value.
+ cmp r2, #0
+ beq LSYM(Lepilogue)
+
+@ return INT
+ cmp r3, #FFI_TYPE_INT
+#ifdef __SOFTFP__
+ cmpne r3, #FFI_TYPE_FLOAT
+#endif
+ streq r0, [r2]
+ beq LSYM(Lepilogue)
+
+ @ return INT64
+ cmp r3, #FFI_TYPE_SINT64
+#ifdef __SOFTFP__
+ cmpne r3, #FFI_TYPE_DOUBLE
+#endif
+ stmeqia r2, {r0, r1}
+
+#ifndef __SOFTFP__
+ beq LSYM(Lepilogue)
+
+@ return FLOAT
+ cmp r3, #FFI_TYPE_FLOAT
+ stfeqs f0, [r2]
+ beq LSYM(Lepilogue)
+
+@ return DOUBLE or LONGDOUBLE
+ cmp r3, #FFI_TYPE_DOUBLE
+ stfeqd f0, [r2]
+#endif
+
+LSYM(Lepilogue):
+ RETLDM "r0-r3,fp"
+
+.ffi_call_SYSV_end:
+ .size CNAME(ffi_call_SYSV),.ffi_call_SYSV_end-CNAME(ffi_call_SYSV)
+