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-rw-r--r--libffi-3.0.4/src/s390/ffi.c779
-rw-r--r--libffi-3.0.4/src/s390/ffitarget.h60
-rw-r--r--libffi-3.0.4/src/s390/sysv.S430
3 files changed, 1269 insertions, 0 deletions
diff --git a/libffi-3.0.4/src/s390/ffi.c b/libffi-3.0.4/src/s390/ffi.c
new file mode 100644
index 0000000..d17f790
--- /dev/null
+++ b/libffi-3.0.4/src/s390/ffi.c
@@ -0,0 +1,779 @@
+/* -----------------------------------------------------------------------
+ ffi.c - Copyright (c) 2000, 2007 Software AG
+
+ S390 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 AUTHOR 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.
+ ----------------------------------------------------------------------- */
+/*====================================================================*/
+/* Includes */
+/* -------- */
+/*====================================================================*/
+
+#include <ffi.h>
+#include <ffi_common.h>
+
+#include <stdlib.h>
+#include <stdio.h>
+
+/*====================== End of Includes =============================*/
+
+/*====================================================================*/
+/* Defines */
+/* ------- */
+/*====================================================================*/
+
+/* Maximum number of GPRs available for argument passing. */
+#define MAX_GPRARGS 5
+
+/* Maximum number of FPRs available for argument passing. */
+#ifdef __s390x__
+#define MAX_FPRARGS 4
+#else
+#define MAX_FPRARGS 2
+#endif
+
+/* Round to multiple of 16. */
+#define ROUND_SIZE(size) (((size) + 15) & ~15)
+
+/* If these values change, sysv.S must be adapted! */
+#define FFI390_RET_VOID 0
+#define FFI390_RET_STRUCT 1
+#define FFI390_RET_FLOAT 2
+#define FFI390_RET_DOUBLE 3
+#define FFI390_RET_INT32 4
+#define FFI390_RET_INT64 5
+
+/*===================== End of Defines ===============================*/
+
+/*====================================================================*/
+/* Prototypes */
+/* ---------- */
+/*====================================================================*/
+
+static void ffi_prep_args (unsigned char *, extended_cif *);
+void
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
+__attribute__ ((visibility ("hidden")))
+#endif
+ffi_closure_helper_SYSV (ffi_closure *, unsigned long *,
+ unsigned long long *, unsigned long *);
+
+/*====================== End of Prototypes ===========================*/
+
+/*====================================================================*/
+/* Externals */
+/* --------- */
+/*====================================================================*/
+
+extern void ffi_call_SYSV(unsigned,
+ extended_cif *,
+ void (*)(unsigned char *, extended_cif *),
+ unsigned,
+ void *,
+ void (*fn)());
+
+extern void ffi_closure_SYSV(void);
+
+/*====================== End of Externals ============================*/
+
+/*====================================================================*/
+/* */
+/* Name - ffi_check_struct_type. */
+/* */
+/* Function - Determine if a structure can be passed within a */
+/* general purpose or floating point register. */
+/* */
+/*====================================================================*/
+
+static int
+ffi_check_struct_type (ffi_type *arg)
+{
+ size_t size = arg->size;
+
+ /* If the struct has just one element, look at that element
+ to find out whether to consider the struct as floating point. */
+ while (arg->type == FFI_TYPE_STRUCT
+ && arg->elements[0] && !arg->elements[1])
+ arg = arg->elements[0];
+
+ /* Structs of size 1, 2, 4, and 8 are passed in registers,
+ just like the corresponding int/float types. */
+ switch (size)
+ {
+ case 1:
+ return FFI_TYPE_UINT8;
+
+ case 2:
+ return FFI_TYPE_UINT16;
+
+ case 4:
+ if (arg->type == FFI_TYPE_FLOAT)
+ return FFI_TYPE_FLOAT;
+ else
+ return FFI_TYPE_UINT32;
+
+ case 8:
+ if (arg->type == FFI_TYPE_DOUBLE)
+ return FFI_TYPE_DOUBLE;
+ else
+ return FFI_TYPE_UINT64;
+
+ default:
+ break;
+ }
+
+ /* Other structs are passed via a pointer to the data. */
+ return FFI_TYPE_POINTER;
+}
+
+/*======================== End of Routine ============================*/
+
+/*====================================================================*/
+/* */
+/* Name - ffi_prep_args. */
+/* */
+/* Function - Prepare parameters for call to function. */
+/* */
+/* ffi_prep_args is called by the assembly routine once stack space */
+/* has been allocated for the function's arguments. */
+/* */
+/*====================================================================*/
+
+static void
+ffi_prep_args (unsigned char *stack, extended_cif *ecif)
+{
+ /* The stack space will be filled with those areas:
+
+ FPR argument register save area (highest addresses)
+ GPR argument register save area
+ temporary struct copies
+ overflow argument area (lowest addresses)
+
+ We set up the following pointers:
+
+ p_fpr: bottom of the FPR area (growing upwards)
+ p_gpr: bottom of the GPR area (growing upwards)
+ p_ov: bottom of the overflow area (growing upwards)
+ p_struct: top of the struct copy area (growing downwards)
+
+ All areas are kept aligned to twice the word size. */
+
+ int gpr_off = ecif->cif->bytes;
+ int fpr_off = gpr_off + ROUND_SIZE (MAX_GPRARGS * sizeof (long));
+
+ unsigned long long *p_fpr = (unsigned long long *)(stack + fpr_off);
+ unsigned long *p_gpr = (unsigned long *)(stack + gpr_off);
+ unsigned char *p_struct = (unsigned char *)p_gpr;
+ unsigned long *p_ov = (unsigned long *)stack;
+
+ int n_fpr = 0;
+ int n_gpr = 0;
+ int n_ov = 0;
+
+ ffi_type **ptr;
+ void **p_argv = ecif->avalue;
+ int i;
+
+ /* If we returning a structure then we set the first parameter register
+ to the address of where we are returning this structure. */
+
+ if (ecif->cif->flags == FFI390_RET_STRUCT)
+ p_gpr[n_gpr++] = (unsigned long) ecif->rvalue;
+
+ /* Now for the arguments. */
+
+ for (ptr = ecif->cif->arg_types, i = ecif->cif->nargs;
+ i > 0;
+ i--, ptr++, p_argv++)
+ {
+ void *arg = *p_argv;
+ int type = (*ptr)->type;
+
+#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+ /* 16-byte long double is passed like a struct. */
+ if (type == FFI_TYPE_LONGDOUBLE)
+ type = FFI_TYPE_STRUCT;
+#endif
+
+ /* Check how a structure type is passed. */
+ if (type == FFI_TYPE_STRUCT)
+ {
+ type = ffi_check_struct_type (*ptr);
+
+ /* If we pass the struct via pointer, copy the data. */
+ if (type == FFI_TYPE_POINTER)
+ {
+ p_struct -= ROUND_SIZE ((*ptr)->size);
+ memcpy (p_struct, (char *)arg, (*ptr)->size);
+ arg = &p_struct;
+ }
+ }
+
+ /* Now handle all primitive int/pointer/float data types. */
+ switch (type)
+ {
+ case FFI_TYPE_DOUBLE:
+ if (n_fpr < MAX_FPRARGS)
+ p_fpr[n_fpr++] = *(unsigned long long *) arg;
+ else
+#ifdef __s390x__
+ p_ov[n_ov++] = *(unsigned long *) arg;
+#else
+ p_ov[n_ov++] = ((unsigned long *) arg)[0],
+ p_ov[n_ov++] = ((unsigned long *) arg)[1];
+#endif
+ break;
+
+ case FFI_TYPE_FLOAT:
+ if (n_fpr < MAX_FPRARGS)
+ p_fpr[n_fpr++] = (long long) *(unsigned int *) arg << 32;
+ else
+ p_ov[n_ov++] = *(unsigned int *) arg;
+ break;
+
+ case FFI_TYPE_POINTER:
+ if (n_gpr < MAX_GPRARGS)
+ p_gpr[n_gpr++] = (unsigned long)*(unsigned char **) arg;
+ else
+ p_ov[n_ov++] = (unsigned long)*(unsigned char **) arg;
+ break;
+
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_SINT64:
+#ifdef __s390x__
+ if (n_gpr < MAX_GPRARGS)
+ p_gpr[n_gpr++] = *(unsigned long *) arg;
+ else
+ p_ov[n_ov++] = *(unsigned long *) arg;
+#else
+ if (n_gpr == MAX_GPRARGS-1)
+ n_gpr = MAX_GPRARGS;
+ if (n_gpr < MAX_GPRARGS)
+ p_gpr[n_gpr++] = ((unsigned long *) arg)[0],
+ p_gpr[n_gpr++] = ((unsigned long *) arg)[1];
+ else
+ p_ov[n_ov++] = ((unsigned long *) arg)[0],
+ p_ov[n_ov++] = ((unsigned long *) arg)[1];
+#endif
+ break;
+
+ case FFI_TYPE_UINT32:
+ if (n_gpr < MAX_GPRARGS)
+ p_gpr[n_gpr++] = *(unsigned int *) arg;
+ else
+ p_ov[n_ov++] = *(unsigned int *) arg;
+ break;
+
+ case FFI_TYPE_INT:
+ case FFI_TYPE_SINT32:
+ if (n_gpr < MAX_GPRARGS)
+ p_gpr[n_gpr++] = *(signed int *) arg;
+ else
+ p_ov[n_ov++] = *(signed int *) arg;
+ break;
+
+ case FFI_TYPE_UINT16:
+ if (n_gpr < MAX_GPRARGS)
+ p_gpr[n_gpr++] = *(unsigned short *) arg;
+ else
+ p_ov[n_ov++] = *(unsigned short *) arg;
+ break;
+
+ case FFI_TYPE_SINT16:
+ if (n_gpr < MAX_GPRARGS)
+ p_gpr[n_gpr++] = *(signed short *) arg;
+ else
+ p_ov[n_ov++] = *(signed short *) arg;
+ break;
+
+ case FFI_TYPE_UINT8:
+ if (n_gpr < MAX_GPRARGS)
+ p_gpr[n_gpr++] = *(unsigned char *) arg;
+ else
+ p_ov[n_ov++] = *(unsigned char *) arg;
+ break;
+
+ case FFI_TYPE_SINT8:
+ if (n_gpr < MAX_GPRARGS)
+ p_gpr[n_gpr++] = *(signed char *) arg;
+ else
+ p_ov[n_ov++] = *(signed char *) arg;
+ break;
+
+ default:
+ FFI_ASSERT (0);
+ break;
+ }
+ }
+}
+
+/*======================== End of Routine ============================*/
+
+/*====================================================================*/
+/* */
+/* Name - ffi_prep_cif_machdep. */
+/* */
+/* Function - Perform machine dependent CIF processing. */
+/* */
+/*====================================================================*/
+
+ffi_status
+ffi_prep_cif_machdep(ffi_cif *cif)
+{
+ size_t struct_size = 0;
+ int n_gpr = 0;
+ int n_fpr = 0;
+ int n_ov = 0;
+
+ ffi_type **ptr;
+ int i;
+
+ /* Determine return value handling. */
+
+ switch (cif->rtype->type)
+ {
+ /* Void is easy. */
+ case FFI_TYPE_VOID:
+ cif->flags = FFI390_RET_VOID;
+ break;
+
+ /* Structures are returned via a hidden pointer. */
+ case FFI_TYPE_STRUCT:
+ cif->flags = FFI390_RET_STRUCT;
+ n_gpr++; /* We need one GPR to pass the pointer. */
+ break;
+
+ /* Floating point values are returned in fpr 0. */
+ case FFI_TYPE_FLOAT:
+ cif->flags = FFI390_RET_FLOAT;
+ break;
+
+ case FFI_TYPE_DOUBLE:
+ cif->flags = FFI390_RET_DOUBLE;
+ break;
+
+#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+ case FFI_TYPE_LONGDOUBLE:
+ cif->flags = FFI390_RET_STRUCT;
+ n_gpr++;
+ break;
+#endif
+ /* Integer values are returned in gpr 2 (and gpr 3
+ for 64-bit values on 31-bit machines). */
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_SINT64:
+ cif->flags = FFI390_RET_INT64;
+ break;
+
+ case FFI_TYPE_POINTER:
+ case FFI_TYPE_INT:
+ case FFI_TYPE_UINT32:
+ case FFI_TYPE_SINT32:
+ case FFI_TYPE_UINT16:
+ case FFI_TYPE_SINT16:
+ case FFI_TYPE_UINT8:
+ case FFI_TYPE_SINT8:
+ /* These are to be extended to word size. */
+#ifdef __s390x__
+ cif->flags = FFI390_RET_INT64;
+#else
+ cif->flags = FFI390_RET_INT32;
+#endif
+ break;
+
+ default:
+ FFI_ASSERT (0);
+ break;
+ }
+
+ /* Now for the arguments. */
+
+ for (ptr = cif->arg_types, i = cif->nargs;
+ i > 0;
+ i--, ptr++)
+ {
+ int type = (*ptr)->type;
+
+#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+ /* 16-byte long double is passed like a struct. */
+ if (type == FFI_TYPE_LONGDOUBLE)
+ type = FFI_TYPE_STRUCT;
+#endif
+
+ /* Check how a structure type is passed. */
+ if (type == FFI_TYPE_STRUCT)
+ {
+ type = ffi_check_struct_type (*ptr);
+
+ /* If we pass the struct via pointer, we must reserve space
+ to copy its data for proper call-by-value semantics. */
+ if (type == FFI_TYPE_POINTER)
+ struct_size += ROUND_SIZE ((*ptr)->size);
+ }
+
+ /* Now handle all primitive int/float data types. */
+ switch (type)
+ {
+ /* The first MAX_FPRARGS floating point arguments
+ go in FPRs, the rest overflow to the stack. */
+
+ case FFI_TYPE_DOUBLE:
+ if (n_fpr < MAX_FPRARGS)
+ n_fpr++;
+ else
+ n_ov += sizeof (double) / sizeof (long);
+ break;
+
+ case FFI_TYPE_FLOAT:
+ if (n_fpr < MAX_FPRARGS)
+ n_fpr++;
+ else
+ n_ov++;
+ break;
+
+ /* On 31-bit machines, 64-bit integers are passed in GPR pairs,
+ if one is still available, or else on the stack. If only one
+ register is free, skip the register (it won't be used for any
+ subsequent argument either). */
+
+#ifndef __s390x__
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_SINT64:
+ if (n_gpr == MAX_GPRARGS-1)
+ n_gpr = MAX_GPRARGS;
+ if (n_gpr < MAX_GPRARGS)
+ n_gpr += 2;
+ else
+ n_ov += 2;
+ break;
+#endif
+
+ /* Everything else is passed in GPRs (until MAX_GPRARGS
+ have been used) or overflows to the stack. */
+
+ default:
+ if (n_gpr < MAX_GPRARGS)
+ n_gpr++;
+ else
+ n_ov++;
+ break;
+ }
+ }
+
+ /* Total stack space as required for overflow arguments
+ and temporary structure copies. */
+
+ cif->bytes = ROUND_SIZE (n_ov * sizeof (long)) + struct_size;
+
+ return FFI_OK;
+}
+
+/*======================== End of Routine ============================*/
+
+/*====================================================================*/
+/* */
+/* Name - ffi_call. */
+/* */
+/* Function - Call the FFI routine. */
+/* */
+/*====================================================================*/
+
+void
+ffi_call(ffi_cif *cif,
+ void (*fn)(),
+ void *rvalue,
+ void **avalue)
+{
+ int ret_type = cif->flags;
+ extended_cif ecif;
+
+ ecif.cif = cif;
+ ecif.avalue = avalue;
+ ecif.rvalue = rvalue;
+
+ /* If we don't have a return value, we need to fake one. */
+ if (rvalue == NULL)
+ {
+ if (ret_type == FFI390_RET_STRUCT)
+ ecif.rvalue = alloca (cif->rtype->size);
+ else
+ ret_type = FFI390_RET_VOID;
+ }
+
+ 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;
+ }
+}
+
+/*======================== End of Routine ============================*/
+
+/*====================================================================*/
+/* */
+/* Name - ffi_closure_helper_SYSV. */
+/* */
+/* Function - Call a FFI closure target function. */
+/* */
+/*====================================================================*/
+
+void
+ffi_closure_helper_SYSV (ffi_closure *closure,
+ unsigned long *p_gpr,
+ unsigned long long *p_fpr,
+ unsigned long *p_ov)
+{
+ unsigned long long ret_buffer;
+
+ void *rvalue = &ret_buffer;
+ void **avalue;
+ void **p_arg;
+
+ int n_gpr = 0;
+ int n_fpr = 0;
+ int n_ov = 0;
+
+ ffi_type **ptr;
+ int i;
+
+ /* Allocate buffer for argument list pointers. */
+
+ p_arg = avalue = alloca (closure->cif->nargs * sizeof (void *));
+
+ /* If we returning a structure, pass the structure address
+ directly to the target function. Otherwise, have the target
+ function store the return value to the GPR save area. */
+
+ if (closure->cif->flags == FFI390_RET_STRUCT)
+ rvalue = (void *) p_gpr[n_gpr++];
+
+ /* Now for the arguments. */
+
+ for (ptr = closure->cif->arg_types, i = closure->cif->nargs;
+ i > 0;
+ i--, p_arg++, ptr++)
+ {
+ int deref_struct_pointer = 0;
+ int type = (*ptr)->type;
+
+#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+ /* 16-byte long double is passed like a struct. */
+ if (type == FFI_TYPE_LONGDOUBLE)
+ type = FFI_TYPE_STRUCT;
+#endif
+
+ /* Check how a structure type is passed. */
+ if (type == FFI_TYPE_STRUCT)
+ {
+ type = ffi_check_struct_type (*ptr);
+
+ /* If we pass the struct via pointer, remember to
+ retrieve the pointer later. */
+ if (type == FFI_TYPE_POINTER)
+ deref_struct_pointer = 1;
+ }
+
+ /* Pointers are passed like UINTs of the same size. */
+ if (type == FFI_TYPE_POINTER)
+#ifdef __s390x__
+ type = FFI_TYPE_UINT64;
+#else
+ type = FFI_TYPE_UINT32;
+#endif
+
+ /* Now handle all primitive int/float data types. */
+ switch (type)
+ {
+ case FFI_TYPE_DOUBLE:
+ if (n_fpr < MAX_FPRARGS)
+ *p_arg = &p_fpr[n_fpr++];
+ else
+ *p_arg = &p_ov[n_ov],
+ n_ov += sizeof (double) / sizeof (long);
+ break;
+
+ case FFI_TYPE_FLOAT:
+ if (n_fpr < MAX_FPRARGS)
+ *p_arg = &p_fpr[n_fpr++];
+ else
+ *p_arg = (char *)&p_ov[n_ov++] + sizeof (long) - 4;
+ break;
+
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_SINT64:
+#ifdef __s390x__
+ if (n_gpr < MAX_GPRARGS)
+ *p_arg = &p_gpr[n_gpr++];
+ else
+ *p_arg = &p_ov[n_ov++];
+#else
+ if (n_gpr == MAX_GPRARGS-1)
+ n_gpr = MAX_GPRARGS;
+ if (n_gpr < MAX_GPRARGS)
+ *p_arg = &p_gpr[n_gpr], n_gpr += 2;
+ else
+ *p_arg = &p_ov[n_ov], n_ov += 2;
+#endif
+ break;
+
+ case FFI_TYPE_INT:
+ case FFI_TYPE_UINT32:
+ case FFI_TYPE_SINT32:
+ if (n_gpr < MAX_GPRARGS)
+ *p_arg = (char *)&p_gpr[n_gpr++] + sizeof (long) - 4;
+ else
+ *p_arg = (char *)&p_ov[n_ov++] + sizeof (long) - 4;
+ break;
+
+ case FFI_TYPE_UINT16:
+ case FFI_TYPE_SINT16:
+ if (n_gpr < MAX_GPRARGS)
+ *p_arg = (char *)&p_gpr[n_gpr++] + sizeof (long) - 2;
+ else
+ *p_arg = (char *)&p_ov[n_ov++] + sizeof (long) - 2;
+ break;
+
+ case FFI_TYPE_UINT8:
+ case FFI_TYPE_SINT8:
+ if (n_gpr < MAX_GPRARGS)
+ *p_arg = (char *)&p_gpr[n_gpr++] + sizeof (long) - 1;
+ else
+ *p_arg = (char *)&p_ov[n_ov++] + sizeof (long) - 1;
+ break;
+
+ default:
+ FFI_ASSERT (0);
+ break;
+ }
+
+ /* If this is a struct passed via pointer, we need to
+ actually retrieve that pointer. */
+ if (deref_struct_pointer)
+ *p_arg = *(void **)*p_arg;
+ }
+
+
+ /* Call the target function. */
+ (closure->fun) (closure->cif, rvalue, avalue, closure->user_data);
+
+ /* Convert the return value. */
+ switch (closure->cif->rtype->type)
+ {
+ /* Void is easy, and so is struct. */
+ case FFI_TYPE_VOID:
+ case FFI_TYPE_STRUCT:
+#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+ case FFI_TYPE_LONGDOUBLE:
+#endif
+ break;
+
+ /* Floating point values are returned in fpr 0. */
+ case FFI_TYPE_FLOAT:
+ p_fpr[0] = (long long) *(unsigned int *) rvalue << 32;
+ break;
+
+ case FFI_TYPE_DOUBLE:
+ p_fpr[0] = *(unsigned long long *) rvalue;
+ break;
+
+ /* Integer values are returned in gpr 2 (and gpr 3
+ for 64-bit values on 31-bit machines). */
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_SINT64:
+#ifdef __s390x__
+ p_gpr[0] = *(unsigned long *) rvalue;
+#else
+ p_gpr[0] = ((unsigned long *) rvalue)[0],
+ p_gpr[1] = ((unsigned long *) rvalue)[1];
+#endif
+ break;
+
+ case FFI_TYPE_POINTER:
+ case FFI_TYPE_UINT32:
+ case FFI_TYPE_UINT16:
+ case FFI_TYPE_UINT8:
+ p_gpr[0] = *(unsigned long *) rvalue;
+ break;
+
+ case FFI_TYPE_INT:
+ case FFI_TYPE_SINT32:
+ case FFI_TYPE_SINT16:
+ case FFI_TYPE_SINT8:
+ p_gpr[0] = *(signed long *) rvalue;
+ break;
+
+ default:
+ FFI_ASSERT (0);
+ break;
+ }
+}
+
+/*======================== End of Routine ============================*/
+
+/*====================================================================*/
+/* */
+/* Name - ffi_prep_closure_loc. */
+/* */
+/* Function - Prepare a FFI closure. */
+/* */
+/*====================================================================*/
+
+ffi_status
+ffi_prep_closure_loc (ffi_closure *closure,
+ ffi_cif *cif,
+ void (*fun) (ffi_cif *, void *, void **, void *),
+ void *user_data,
+ void *codeloc)
+{
+ FFI_ASSERT (cif->abi == FFI_SYSV);
+
+#ifndef __s390x__
+ *(short *)&closure->tramp [0] = 0x0d10; /* basr %r1,0 */
+ *(short *)&closure->tramp [2] = 0x9801; /* lm %r0,%r1,6(%r1) */
+ *(short *)&closure->tramp [4] = 0x1006;
+ *(short *)&closure->tramp [6] = 0x07f1; /* br %r1 */
+ *(long *)&closure->tramp [8] = (long)codeloc;
+ *(long *)&closure->tramp[12] = (long)&ffi_closure_SYSV;
+#else
+ *(short *)&closure->tramp [0] = 0x0d10; /* basr %r1,0 */
+ *(short *)&closure->tramp [2] = 0xeb01; /* lmg %r0,%r1,14(%r1) */
+ *(short *)&closure->tramp [4] = 0x100e;
+ *(short *)&closure->tramp [6] = 0x0004;
+ *(short *)&closure->tramp [8] = 0x07f1; /* br %r1 */
+ *(long *)&closure->tramp[16] = (long)codeloc;
+ *(long *)&closure->tramp[24] = (long)&ffi_closure_SYSV;
+#endif
+
+ closure->cif = cif;
+ closure->user_data = user_data;
+ closure->fun = fun;
+
+ return FFI_OK;
+}
+
+/*======================== End of Routine ============================*/
+
diff --git a/libffi-3.0.4/src/s390/ffitarget.h b/libffi-3.0.4/src/s390/ffitarget.h
new file mode 100644
index 0000000..78f3c65
--- /dev/null
+++ b/libffi-3.0.4/src/s390/ffitarget.h
@@ -0,0 +1,60 @@
+/* -----------------------------------------------------------------*-C-*-
+ ffitarget.h - Copyright (c) 1996-2003 Red Hat, Inc.
+ Target configuration macros for S390.
+
+ 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
+
+#if defined (__s390x__)
+#define S390X
+#endif
+
+/* ---- System specific configurations ----------------------------------- */
+
+#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 1
+#ifdef S390X
+#define FFI_TRAMPOLINE_SIZE 32
+#else
+#define FFI_TRAMPOLINE_SIZE 16
+#endif
+#define FFI_NATIVE_RAW_API 0
+
+#endif
+
diff --git a/libffi-3.0.4/src/s390/sysv.S b/libffi-3.0.4/src/s390/sysv.S
new file mode 100644
index 0000000..6ac53a0
--- /dev/null
+++ b/libffi-3.0.4/src/s390/sysv.S
@@ -0,0 +1,430 @@
+/* -----------------------------------------------------------------------
+ sysv.S - Copyright (c) 2000 Software AG
+
+ S390 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>
+
+#ifndef __s390x__
+
+.text
+
+ # r2: cif->bytes
+ # r3: &ecif
+ # r4: ffi_prep_args
+ # r5: ret_type
+ # r6: ecif.rvalue
+ # ov: fn
+
+ # This assumes we are using gas.
+ .globl ffi_call_SYSV
+ .type ffi_call_SYSV,%function
+ffi_call_SYSV:
+.LFB1:
+ stm %r6,%r15,24(%r15) # Save registers
+.LCFI0:
+ basr %r13,0 # Set up base register
+.Lbase:
+ lr %r11,%r15 # Set up frame pointer
+.LCFI1:
+ sr %r15,%r2
+ ahi %r15,-96-48 # Allocate stack
+ lr %r8,%r6 # Save ecif.rvalue
+ sr %r9,%r9
+ ic %r9,.Ltable-.Lbase(%r13,%r5) # Load epilog address
+ l %r7,96(%r11) # Load function address
+ st %r11,0(%r15) # Set up back chain
+ ahi %r11,-48 # Register save area
+.LCFI2:
+
+ la %r2,96(%r15) # Save area
+ # r3 already holds &ecif
+ basr %r14,%r4 # Call ffi_prep_args
+
+ lm %r2,%r6,0(%r11) # Load arguments
+ ld %f0,32(%r11)
+ ld %f2,40(%r11)
+ la %r14,0(%r13,%r9) # Set return address
+ br %r7 # ... and call function
+
+.LretNone: # Return void
+ l %r4,48+56(%r11)
+ lm %r6,%r15,48+24(%r11)
+ br %r4
+
+.LretFloat:
+ l %r4,48+56(%r11)
+ ste %f0,0(%r8) # Return float
+ lm %r6,%r15,48+24(%r11)
+ br %r4
+
+.LretDouble:
+ l %r4,48+56(%r11)
+ std %f0,0(%r8) # Return double
+ lm %r6,%r15,48+24(%r11)
+ br %r4
+
+.LretInt32:
+ l %r4,48+56(%r11)
+ st %r2,0(%r8) # Return int
+ lm %r6,%r15,48+24(%r11)
+ br %r4
+
+.LretInt64:
+ l %r4,48+56(%r11)
+ stm %r2,%r3,0(%r8) # Return long long
+ lm %r6,%r15,48+24(%r11)
+ br %r4
+
+.Ltable:
+ .byte .LretNone-.Lbase # FFI390_RET_VOID
+ .byte .LretNone-.Lbase # FFI390_RET_STRUCT
+ .byte .LretFloat-.Lbase # FFI390_RET_FLOAT
+ .byte .LretDouble-.Lbase # FFI390_RET_DOUBLE
+ .byte .LretInt32-.Lbase # FFI390_RET_INT32
+ .byte .LretInt64-.Lbase # FFI390_RET_INT64
+
+.LFE1:
+.ffi_call_SYSV_end:
+ .size ffi_call_SYSV,.ffi_call_SYSV_end-ffi_call_SYSV
+
+
+ .globl ffi_closure_SYSV
+ .type ffi_closure_SYSV,%function
+ffi_closure_SYSV:
+.LFB2:
+ stm %r12,%r15,48(%r15) # Save registers
+.LCFI10:
+ basr %r13,0 # Set up base register
+.Lcbase:
+ stm %r2,%r6,8(%r15) # Save arguments
+ std %f0,64(%r15)
+ std %f2,72(%r15)
+ lr %r1,%r15 # Set up stack frame
+ ahi %r15,-96
+.LCFI11:
+ l %r12,.Lchelper-.Lcbase(%r13) # Get helper function
+ lr %r2,%r0 # Closure
+ la %r3,8(%r1) # GPRs
+ la %r4,64(%r1) # FPRs
+ la %r5,96(%r1) # Overflow
+ st %r1,0(%r15) # Set up back chain
+
+ bas %r14,0(%r12,%r13) # Call helper
+
+ l %r4,96+56(%r15)
+ ld %f0,96+64(%r15) # Load return registers
+ lm %r2,%r3,96+8(%r15)
+ lm %r12,%r15,96+48(%r15)
+ br %r4
+
+ .align 4
+.Lchelper:
+ .long ffi_closure_helper_SYSV-.Lcbase
+
+.LFE2:
+
+.ffi_closure_SYSV_end:
+ .size ffi_closure_SYSV,.ffi_closure_SYSV_end-ffi_closure_SYSV
+
+
+ .section .eh_frame,EH_FRAME_FLAGS,@progbits
+.Lframe1:
+ .4byte .LECIE1-.LSCIE1 # Length of Common Information Entry
+.LSCIE1:
+ .4byte 0x0 # CIE Identifier Tag
+ .byte 0x1 # CIE Version
+ .ascii "zR\0" # CIE Augmentation
+ .uleb128 0x1 # CIE Code Alignment Factor
+ .sleb128 -4 # CIE Data Alignment Factor
+ .byte 0xe # CIE RA Column
+ .uleb128 0x1 # Augmentation size
+ .byte 0x1b # FDE Encoding (pcrel sdata4)
+ .byte 0xc # DW_CFA_def_cfa
+ .uleb128 0xf
+ .uleb128 0x60
+ .align 4
+.LECIE1:
+.LSFDE1:
+ .4byte .LEFDE1-.LASFDE1 # FDE Length
+.LASFDE1:
+ .4byte .LASFDE1-.Lframe1 # FDE CIE offset
+ .4byte .LFB1-. # FDE initial location
+ .4byte .LFE1-.LFB1 # FDE address range
+ .uleb128 0x0 # Augmentation size
+ .byte 0x4 # DW_CFA_advance_loc4
+ .4byte .LCFI0-.LFB1
+ .byte 0x8f # DW_CFA_offset, column 0xf
+ .uleb128 0x9
+ .byte 0x8e # DW_CFA_offset, column 0xe
+ .uleb128 0xa
+ .byte 0x8d # DW_CFA_offset, column 0xd
+ .uleb128 0xb
+ .byte 0x8c # DW_CFA_offset, column 0xc
+ .uleb128 0xc
+ .byte 0x8b # DW_CFA_offset, column 0xb
+ .uleb128 0xd
+ .byte 0x8a # DW_CFA_offset, column 0xa
+ .uleb128 0xe
+ .byte 0x89 # DW_CFA_offset, column 0x9
+ .uleb128 0xf
+ .byte 0x88 # DW_CFA_offset, column 0x8
+ .uleb128 0x10
+ .byte 0x87 # DW_CFA_offset, column 0x7
+ .uleb128 0x11
+ .byte 0x86 # DW_CFA_offset, column 0x6
+ .uleb128 0x12
+ .byte 0x4 # DW_CFA_advance_loc4
+ .4byte .LCFI1-.LCFI0
+ .byte 0xd # DW_CFA_def_cfa_register
+ .uleb128 0xb
+ .byte 0x4 # DW_CFA_advance_loc4
+ .4byte .LCFI2-.LCFI1
+ .byte 0xe # DW_CFA_def_cfa_offset
+ .uleb128 0x90
+ .align 4
+.LEFDE1:
+.LSFDE2:
+ .4byte .LEFDE2-.LASFDE2 # FDE Length
+.LASFDE2:
+ .4byte .LASFDE2-.Lframe1 # FDE CIE offset
+ .4byte .LFB2-. # FDE initial location
+ .4byte .LFE2-.LFB2 # FDE address range
+ .uleb128 0x0 # Augmentation size
+ .byte 0x4 # DW_CFA_advance_loc4
+ .4byte .LCFI10-.LFB2
+ .byte 0x8f # DW_CFA_offset, column 0xf
+ .uleb128 0x9
+ .byte 0x8e # DW_CFA_offset, column 0xe
+ .uleb128 0xa
+ .byte 0x8d # DW_CFA_offset, column 0xd
+ .uleb128 0xb
+ .byte 0x8c # DW_CFA_offset, column 0xc
+ .uleb128 0xc
+ .byte 0x4 # DW_CFA_advance_loc4
+ .4byte .LCFI11-.LCFI10
+ .byte 0xe # DW_CFA_def_cfa_offset
+ .uleb128 0xc0
+ .align 4
+.LEFDE2:
+
+#else
+
+.text
+
+ # r2: cif->bytes
+ # r3: &ecif
+ # r4: ffi_prep_args
+ # r5: ret_type
+ # r6: ecif.rvalue
+ # ov: fn
+
+ # This assumes we are using gas.
+ .globl ffi_call_SYSV
+ .type ffi_call_SYSV,%function
+ffi_call_SYSV:
+.LFB1:
+ stmg %r6,%r15,48(%r15) # Save registers
+.LCFI0:
+ larl %r13,.Lbase # Set up base register
+ lgr %r11,%r15 # Set up frame pointer
+.LCFI1:
+ sgr %r15,%r2
+ aghi %r15,-160-80 # Allocate stack
+ lgr %r8,%r6 # Save ecif.rvalue
+ llgc %r9,.Ltable-.Lbase(%r13,%r5) # Load epilog address
+ lg %r7,160(%r11) # Load function address
+ stg %r11,0(%r15) # Set up back chain
+ aghi %r11,-80 # Register save area
+.LCFI2:
+
+ la %r2,160(%r15) # Save area
+ # r3 already holds &ecif
+ basr %r14,%r4 # Call ffi_prep_args
+
+ lmg %r2,%r6,0(%r11) # Load arguments
+ ld %f0,48(%r11)
+ ld %f2,56(%r11)
+ ld %f4,64(%r11)
+ ld %f6,72(%r11)
+ la %r14,0(%r13,%r9) # Set return address
+ br %r7 # ... and call function
+
+.Lbase:
+.LretNone: # Return void
+ lg %r4,80+112(%r11)
+ lmg %r6,%r15,80+48(%r11)
+ br %r4
+
+.LretFloat:
+ lg %r4,80+112(%r11)
+ ste %f0,0(%r8) # Return float
+ lmg %r6,%r15,80+48(%r11)
+ br %r4
+
+.LretDouble:
+ lg %r4,80+112(%r11)
+ std %f0,0(%r8) # Return double
+ lmg %r6,%r15,80+48(%r11)
+ br %r4
+
+.LretInt32:
+ lg %r4,80+112(%r11)
+ st %r2,0(%r8) # Return int
+ lmg %r6,%r15,80+48(%r11)
+ br %r4
+
+.LretInt64:
+ lg %r4,80+112(%r11)
+ stg %r2,0(%r8) # Return long
+ lmg %r6,%r15,80+48(%r11)
+ br %r4
+
+.Ltable:
+ .byte .LretNone-.Lbase # FFI390_RET_VOID
+ .byte .LretNone-.Lbase # FFI390_RET_STRUCT
+ .byte .LretFloat-.Lbase # FFI390_RET_FLOAT
+ .byte .LretDouble-.Lbase # FFI390_RET_DOUBLE
+ .byte .LretInt32-.Lbase # FFI390_RET_INT32
+ .byte .LretInt64-.Lbase # FFI390_RET_INT64
+
+.LFE1:
+.ffi_call_SYSV_end:
+ .size ffi_call_SYSV,.ffi_call_SYSV_end-ffi_call_SYSV
+
+
+ .globl ffi_closure_SYSV
+ .type ffi_closure_SYSV,%function
+ffi_closure_SYSV:
+.LFB2:
+ stmg %r14,%r15,112(%r15) # Save registers
+.LCFI10:
+ stmg %r2,%r6,16(%r15) # Save arguments
+ std %f0,128(%r15)
+ std %f2,136(%r15)
+ std %f4,144(%r15)
+ std %f6,152(%r15)
+ lgr %r1,%r15 # Set up stack frame
+ aghi %r15,-160
+.LCFI11:
+ lgr %r2,%r0 # Closure
+ la %r3,16(%r1) # GPRs
+ la %r4,128(%r1) # FPRs
+ la %r5,160(%r1) # Overflow
+ stg %r1,0(%r15) # Set up back chain
+
+ brasl %r14,ffi_closure_helper_SYSV # Call helper
+
+ lg %r14,160+112(%r15)
+ ld %f0,160+128(%r15) # Load return registers
+ lg %r2,160+16(%r15)
+ la %r15,160(%r15)
+ br %r14
+.LFE2:
+
+.ffi_closure_SYSV_end:
+ .size ffi_closure_SYSV,.ffi_closure_SYSV_end-ffi_closure_SYSV
+
+
+
+ .section .eh_frame,EH_FRAME_FLAGS,@progbits
+.Lframe1:
+ .4byte .LECIE1-.LSCIE1 # Length of Common Information Entry
+.LSCIE1:
+ .4byte 0x0 # CIE Identifier Tag
+ .byte 0x1 # CIE Version
+ .ascii "zR\0" # CIE Augmentation
+ .uleb128 0x1 # CIE Code Alignment Factor
+ .sleb128 -8 # CIE Data Alignment Factor
+ .byte 0xe # CIE RA Column
+ .uleb128 0x1 # Augmentation size
+ .byte 0x1b # FDE Encoding (pcrel sdata4)
+ .byte 0xc # DW_CFA_def_cfa
+ .uleb128 0xf
+ .uleb128 0xa0
+ .align 8
+.LECIE1:
+.LSFDE1:
+ .4byte .LEFDE1-.LASFDE1 # FDE Length
+.LASFDE1:
+ .4byte .LASFDE1-.Lframe1 # FDE CIE offset
+ .4byte .LFB1-. # FDE initial location
+ .4byte .LFE1-.LFB1 # FDE address range
+ .uleb128 0x0 # Augmentation size
+ .byte 0x4 # DW_CFA_advance_loc4
+ .4byte .LCFI0-.LFB1
+ .byte 0x8f # DW_CFA_offset, column 0xf
+ .uleb128 0x5
+ .byte 0x8e # DW_CFA_offset, column 0xe
+ .uleb128 0x6
+ .byte 0x8d # DW_CFA_offset, column 0xd
+ .uleb128 0x7
+ .byte 0x8c # DW_CFA_offset, column 0xc
+ .uleb128 0x8
+ .byte 0x8b # DW_CFA_offset, column 0xb
+ .uleb128 0x9
+ .byte 0x8a # DW_CFA_offset, column 0xa
+ .uleb128 0xa
+ .byte 0x89 # DW_CFA_offset, column 0x9
+ .uleb128 0xb
+ .byte 0x88 # DW_CFA_offset, column 0x8
+ .uleb128 0xc
+ .byte 0x87 # DW_CFA_offset, column 0x7
+ .uleb128 0xd
+ .byte 0x86 # DW_CFA_offset, column 0x6
+ .uleb128 0xe
+ .byte 0x4 # DW_CFA_advance_loc4
+ .4byte .LCFI1-.LCFI0
+ .byte 0xd # DW_CFA_def_cfa_register
+ .uleb128 0xb
+ .byte 0x4 # DW_CFA_advance_loc4
+ .4byte .LCFI2-.LCFI1
+ .byte 0xe # DW_CFA_def_cfa_offset
+ .uleb128 0xf0
+ .align 8
+.LEFDE1:
+.LSFDE2:
+ .4byte .LEFDE2-.LASFDE2 # FDE Length
+.LASFDE2:
+ .4byte .LASFDE2-.Lframe1 # FDE CIE offset
+ .4byte .LFB2-. # FDE initial location
+ .4byte .LFE2-.LFB2 # FDE address range
+ .uleb128 0x0 # Augmentation size
+ .byte 0x4 # DW_CFA_advance_loc4
+ .4byte .LCFI10-.LFB2
+ .byte 0x8f # DW_CFA_offset, column 0xf
+ .uleb128 0x5
+ .byte 0x8e # DW_CFA_offset, column 0xe
+ .uleb128 0x6
+ .byte 0x4 # DW_CFA_advance_loc4
+ .4byte .LCFI11-.LCFI10
+ .byte 0xe # DW_CFA_def_cfa_offset
+ .uleb128 0x140
+ .align 8
+.LEFDE2:
+
+#endif
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-20 15:21:02 +0000