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Diffstat (limited to 'jni/ruby/ext/fiddle/libffi-3.2.1/src/bfin')
-rw-r--r--jni/ruby/ext/fiddle/libffi-3.2.1/src/bfin/ffi.c196
-rw-r--r--jni/ruby/ext/fiddle/libffi-3.2.1/src/bfin/ffitarget.h43
-rw-r--r--jni/ruby/ext/fiddle/libffi-3.2.1/src/bfin/sysv.S179
3 files changed, 418 insertions, 0 deletions
diff --git a/jni/ruby/ext/fiddle/libffi-3.2.1/src/bfin/ffi.c b/jni/ruby/ext/fiddle/libffi-3.2.1/src/bfin/ffi.c
new file mode 100644
index 0000000..22a2acd
--- /dev/null
+++ b/jni/ruby/ext/fiddle/libffi-3.2.1/src/bfin/ffi.c
@@ -0,0 +1,196 @@
+/* -----------------------------------------------------------------------
+ ffi.c - Copyright (c) 2012 Alexandre K. I. de Mendonca <alexandre.keunecke@gmail.com>,
+ Paulo Pizarro <paulo.pizarro@gmail.com>
+
+ Blackfin 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.
+ ----------------------------------------------------------------------- */
+#include <ffi.h>
+#include <ffi_common.h>
+
+#include <stdlib.h>
+#include <stdio.h>
+
+/* Maximum number of GPRs available for argument passing. */
+#define MAX_GPRARGS 3
+
+/*
+ * Return types
+ */
+#define FFIBFIN_RET_VOID 0
+#define FFIBFIN_RET_BYTE 1
+#define FFIBFIN_RET_HALFWORD 2
+#define FFIBFIN_RET_INT64 3
+#define FFIBFIN_RET_INT32 4
+
+/*====================================================================*/
+/* PROTOTYPE *
+ /*====================================================================*/
+void ffi_prep_args(unsigned char *, extended_cif *);
+
+/*====================================================================*/
+/* Externals */
+/* (Assembly) */
+/*====================================================================*/
+
+extern void ffi_call_SYSV(unsigned, extended_cif *, void(*)(unsigned char *, extended_cif *), unsigned, void *, void(*fn)(void));
+
+/*====================================================================*/
+/* Implementation */
+/* */
+/*====================================================================*/
+
+
+/*
+ * This function calculates the return type (size) based on type.
+ */
+
+ffi_status ffi_prep_cif_machdep(ffi_cif *cif)
+{
+ /* --------------------------------------*
+ * Return handling *
+ * --------------------------------------*/
+ switch (cif->rtype->type) {
+ case FFI_TYPE_VOID:
+ cif->flags = FFIBFIN_RET_VOID;
+ break;
+ case FFI_TYPE_UINT16:
+ case FFI_TYPE_SINT16:
+ cif->flags = FFIBFIN_RET_HALFWORD;
+ break;
+ case FFI_TYPE_UINT8:
+ cif->flags = FFIBFIN_RET_BYTE;
+ break;
+ case FFI_TYPE_INT:
+ case FFI_TYPE_UINT32:
+ case FFI_TYPE_SINT32:
+ case FFI_TYPE_FLOAT:
+ case FFI_TYPE_POINTER:
+ case FFI_TYPE_SINT8:
+ cif->flags = FFIBFIN_RET_INT32;
+ break;
+ case FFI_TYPE_SINT64:
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_DOUBLE:
+ cif->flags = FFIBFIN_RET_INT64;
+ break;
+ case FFI_TYPE_STRUCT:
+ if (cif->rtype->size <= 4){
+ cif->flags = FFIBFIN_RET_INT32;
+ }else if (cif->rtype->size == 8){
+ cif->flags = FFIBFIN_RET_INT64;
+ }else{
+ //it will return via a hidden pointer in P0
+ cif->flags = FFIBFIN_RET_VOID;
+ }
+ break;
+ default:
+ FFI_ASSERT(0);
+ break;
+ }
+ return FFI_OK;
+}
+
+/*
+ * This will prepare the arguments and will call the assembly routine
+ * cif = the call interface
+ * fn = the function to be called
+ * rvalue = the return value
+ * avalue = the arguments
+ */
+void ffi_call(ffi_cif *cif, void(*fn)(void), void *rvalue, void **avalue)
+{
+ int ret_type = cif->flags;
+ extended_cif ecif;
+ ecif.cif = cif;
+ ecif.avalue = avalue;
+ ecif.rvalue = rvalue;
+
+ switch (cif->abi) {
+ case FFI_SYSV:
+ ffi_call_SYSV(cif->bytes, &ecif, ffi_prep_args, ret_type, ecif.rvalue, fn);
+ break;
+ default:
+ FFI_ASSERT(0);
+ break;
+ }
+}
+
+
+/*
+* This function prepares the parameters (copies them from the ecif to the stack)
+* to call the function (ffi_prep_args is called by the assembly routine in file
+* sysv.S, which also calls the actual function)
+*/
+void ffi_prep_args(unsigned char *stack, extended_cif *ecif)
+{
+ register unsigned int i = 0;
+ void **p_argv;
+ unsigned char *argp;
+ ffi_type **p_arg;
+ argp = stack;
+ p_argv = ecif->avalue;
+ for (i = ecif->cif->nargs, p_arg = ecif->cif->arg_types;
+ (i != 0);
+ i--, p_arg++) {
+ size_t z;
+ z = (*p_arg)->size;
+ if (z < sizeof(int)) {
+ z = sizeof(int);
+ switch ((*p_arg)->type) {
+ case FFI_TYPE_SINT8: {
+ signed char v = *(SINT8 *)(* p_argv);
+ signed int t = v;
+ *(signed int *) argp = t;
+ }
+ break;
+ case FFI_TYPE_UINT8: {
+ unsigned char v = *(UINT8 *)(* p_argv);
+ unsigned int t = v;
+ *(unsigned int *) argp = t;
+ }
+ 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:
+ memcpy(argp, *p_argv, (*p_arg)->size);
+ break;
+ default:
+ FFI_ASSERT(0);
+ break;
+ }
+ } else if (z == sizeof(int)) {
+ *(unsigned int *) argp = (unsigned int) * (UINT32 *)(* p_argv);
+ } else {
+ memcpy(argp, *p_argv, z);
+ }
+ p_argv++;
+ argp += z;
+ }
+}
+
+
+
diff --git a/jni/ruby/ext/fiddle/libffi-3.2.1/src/bfin/ffitarget.h b/jni/ruby/ext/fiddle/libffi-3.2.1/src/bfin/ffitarget.h
new file mode 100644
index 0000000..2175c01
--- /dev/null
+++ b/jni/ruby/ext/fiddle/libffi-3.2.1/src/bfin/ffitarget.h
@@ -0,0 +1,43 @@
+/* -----------------------------------------------------------------------
+ ffitarget.h - Copyright (c) 2012 Alexandre K. I. de Mendonca <alexandre.keunecke@gmail.com>
+
+ Blackfin 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.
+ ----------------------------------------------------------------------- */
+
+#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_LAST_ABI,
+ FFI_DEFAULT_ABI = FFI_SYSV
+} ffi_abi;
+#endif
+
+#endif
+
diff --git a/jni/ruby/ext/fiddle/libffi-3.2.1/src/bfin/sysv.S b/jni/ruby/ext/fiddle/libffi-3.2.1/src/bfin/sysv.S
new file mode 100644
index 0000000..f4278be
--- /dev/null
+++ b/jni/ruby/ext/fiddle/libffi-3.2.1/src/bfin/sysv.S
@@ -0,0 +1,179 @@
+/* -----------------------------------------------------------------------
+ sysv.S - Copyright (c) 2012 Alexandre K. I. de Mendonca <alexandre.keunecke@gmail.com>,
+ Paulo Pizarro <paulo.pizarro@gmail.com>
+
+ Blackfin 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>
+
+.text
+.align 4
+
+ /*
+ There is a "feature" in the bfin toolchain that it puts a _ before function names
+ that's why the function here it's called _ffi_call_SYSV and not ffi_call_SYSV
+ */
+ .global _ffi_call_SYSV;
+ .type _ffi_call_SYSV, STT_FUNC;
+ .func ffi_call_SYSV
+
+ /*
+ cif->bytes = R0 (fp+8)
+ &ecif = R1 (fp+12)
+ ffi_prep_args = R2 (fp+16)
+ ret_type = stack (fp+20)
+ ecif.rvalue = stack (fp+24)
+ fn = stack (fp+28)
+ got (fp+32)
+
+ There is room for improvement here (we can use temporary registers
+ instead of saving the values in the memory)
+ REGS:
+ P5 => Stack pointer (function arguments)
+ R5 => cif->bytes
+ R4 => ret->type
+
+ FP-20 = P3
+ FP-16 = SP (parameters area)
+ FP-12 = SP (temp)
+ FP-08 = function return part 1 [R0]
+ FP-04 = function return part 2 [R1]
+ */
+
+_ffi_call_SYSV:
+.prologue:
+ LINK 20;
+ [FP-20] = P3;
+ [FP+8] = R0;
+ [FP+12] = R1;
+ [FP+16] = R2;
+
+.allocate_stack:
+ //alocate cif->bytes into the stack
+ R1 = [FP+8];
+ R0 = SP;
+ R0 = R0 - R1;
+ R1 = 4;
+ R0 = R0 - R1;
+ [FP-12] = SP;
+ SP = R0;
+ [FP-16] = SP;
+
+.call_prep_args:
+ //get the addr of prep_args
+ P0 = [P3 + _ffi_prep_args@FUNCDESC_GOT17M4];
+ P1 = [P0];
+ P3 = [P0+4];
+ R0 = [FP-16];//SP (parameter area)
+ R1 = [FP+12];//ecif
+ call (P1);
+
+.call_user_function:
+ //ajust SP so as to allow the user function access the parameters on the stack
+ SP = [FP-16]; //point to function parameters
+ R0 = [SP];
+ R1 = [SP+4];
+ R2 = [SP+8];
+ //load user function address
+ P0 = FP;
+ P0 +=28;
+ P1 = [P0];
+ P1 = [P1];
+ P3 = [P0+4];
+ /*
+ For functions returning aggregate values (struct) occupying more than 8 bytes,
+ the caller allocates the return value object on the stack and the address
+ of this object is passed to the callee as a hidden argument in register P0.
+ */
+ P0 = [FP+24];
+
+ call (P1);
+ SP = [FP-12];
+.compute_return:
+ P2 = [FP-20];
+ [FP-8] = R0;
+ [FP-4] = R1;
+
+ R0 = [FP+20];
+ R1 = R0 << 2;
+
+ R0 = [P2+.rettable@GOT17M4];
+ R0 = R1 + R0;
+ P2 = R0;
+ R1 = [P2];
+
+ P2 = [FP+-20];
+ R0 = [P2+.rettable@GOT17M4];
+ R0 = R1 + R0;
+ P2 = R0;
+ R0 = [FP-8];
+ R1 = [FP-4];
+ jump (P2);
+
+/*
+#define FFIBFIN_RET_VOID 0
+#define FFIBFIN_RET_BYTE 1
+#define FFIBFIN_RET_HALFWORD 2
+#define FFIBFIN_RET_INT64 3
+#define FFIBFIN_RET_INT32 4
+*/
+.align 4
+.align 4
+.rettable:
+ .dd .epilogue - .rettable
+ .dd .rbyte - .rettable;
+ .dd .rhalfword - .rettable;
+ .dd .rint64 - .rettable;
+ .dd .rint32 - .rettable;
+
+.rbyte:
+ P0 = [FP+24];
+ R0 = R0.B (Z);
+ [P0] = R0;
+ JUMP .epilogue
+.rhalfword:
+ P0 = [FP+24];
+ R0 = R0.L;
+ [P0] = R0;
+ JUMP .epilogue
+.rint64:
+ P0 = [FP+24];// &rvalue
+ [P0] = R0;
+ [P0+4] = R1;
+ JUMP .epilogue
+.rint32:
+ P0 = [FP+24];
+ [P0] = R0;
+.epilogue:
+ R0 = [FP+8];
+ R1 = [FP+12];
+ R2 = [FP+16];
+ P3 = [FP-20];
+ UNLINK;
+ RTS;
+
+.size _ffi_call_SYSV,.-_ffi_call_SYSV;
+.endfunc
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-08 20:30:14 +0000