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-rw-r--r--sim/common/sim-config.c377
1 files changed, 377 insertions, 0 deletions
diff --git a/sim/common/sim-config.c b/sim/common/sim-config.c
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+/* This file is part of the GNU simulators.
+
+ Copyright (C) 1994-1995,1997, Andrew Cagney <cagney@highland.com.au>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ */
+
+
+#include "sim-main.h"
+#include "sim-assert.h"
+#include "bfd.h"
+
+
+int current_host_byte_order;
+int current_target_byte_order;
+int current_stdio;
+
+enum sim_alignments current_alignment;
+
+#if defined (WITH_FLOATING_POINT)
+int current_floating_point;
+#endif
+
+
+
+/* map a byte order onto a textual string */
+
+static const char *
+config_byte_order_to_a (int byte_order)
+{
+ switch (byte_order)
+ {
+ case LITTLE_ENDIAN:
+ return "LITTLE_ENDIAN";
+ case BIG_ENDIAN:
+ return "BIG_ENDIAN";
+ case 0:
+ return "0";
+ }
+ return "UNKNOWN";
+}
+
+
+static const char *
+config_stdio_to_a (int stdio)
+{
+ switch (stdio)
+ {
+ case DONT_USE_STDIO:
+ return "DONT_USE_STDIO";
+ case DO_USE_STDIO:
+ return "DO_USE_STDIO";
+ case 0:
+ return "0";
+ }
+ return "UNKNOWN";
+}
+
+
+static const char *
+config_environment_to_a (enum sim_environment environment)
+{
+ switch (environment)
+ {
+ case ALL_ENVIRONMENT:
+ return "ALL_ENVIRONMENT";
+ case USER_ENVIRONMENT:
+ return "USER_ENVIRONMENT";
+ case VIRTUAL_ENVIRONMENT:
+ return "VIRTUAL_ENVIRONMENT";
+ case OPERATING_ENVIRONMENT:
+ return "OPERATING_ENVIRONMENT";
+ }
+ return "UNKNOWN";
+}
+
+
+static const char *
+config_alignment_to_a (enum sim_alignments alignment)
+{
+ switch (alignment)
+ {
+ case MIXED_ALIGNMENT:
+ return "MIXED_ALIGNMENT";
+ case NONSTRICT_ALIGNMENT:
+ return "NONSTRICT_ALIGNMENT";
+ case STRICT_ALIGNMENT:
+ return "STRICT_ALIGNMENT";
+ case FORCED_ALIGNMENT:
+ return "FORCED_ALIGNMENT";
+ }
+ return "UNKNOWN";
+}
+
+
+#if defined (WITH_FLOATING_POINT)
+static const char *
+config_floating_point_to_a (int floating_point)
+{
+ switch (floating_point)
+ {
+ case SOFT_FLOATING_POINT:
+ return "SOFT_FLOATING_POINT";
+ case HARD_FLOATING_POINT:
+ return "HARD_FLOATING_POINT";
+ case 0:
+ return "0";
+ }
+ return "UNKNOWN";
+}
+#endif
+
+/* Set the default environment, prior to parsing argv. */
+
+void
+sim_config_default (SIM_DESC sd)
+{
+ /* Set the current environment to ALL_ENVIRONMENT to indicate none has been
+ selected yet. This is so that after parsing argv, we know whether the
+ environment was explicitly specified or not. */
+ STATE_ENVIRONMENT (sd) = ALL_ENVIRONMENT;
+}
+
+/* Complete and verify the simulation environment. */
+
+SIM_RC
+sim_config (SIM_DESC sd)
+{
+ int prefered_target_byte_order;
+ SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
+
+ /* extract all relevant information */
+ if (STATE_PROG_BFD (sd) == NULL)
+ prefered_target_byte_order = 0;
+ else
+ prefered_target_byte_order = (bfd_little_endian(STATE_PROG_BFD (sd))
+ ? LITTLE_ENDIAN
+ : BIG_ENDIAN);
+
+ /* set the host byte order */
+ current_host_byte_order = 1;
+ if (*(char*)(&current_host_byte_order))
+ current_host_byte_order = LITTLE_ENDIAN;
+ else
+ current_host_byte_order = BIG_ENDIAN;
+
+ /* verify the host byte order */
+ if (CURRENT_HOST_BYTE_ORDER != current_host_byte_order)
+ {
+ sim_io_eprintf (sd, "host (%s) and configured (%s) byte order in conflict",
+ config_byte_order_to_a (current_host_byte_order),
+ config_byte_order_to_a (CURRENT_HOST_BYTE_ORDER));
+ return SIM_RC_FAIL;
+ }
+
+
+ /* set the target byte order */
+#if (WITH_TREE_PROPERTIES)
+ if (current_target_byte_order == 0)
+ current_target_byte_order
+ = (tree_find_boolean_property (root, "/options/little-endian?")
+ ? LITTLE_ENDIAN
+ : BIG_ENDIAN);
+#endif
+ if (current_target_byte_order == 0
+ && prefered_target_byte_order != 0)
+ current_target_byte_order = prefered_target_byte_order;
+ if (current_target_byte_order == 0)
+ current_target_byte_order = WITH_TARGET_BYTE_ORDER;
+ if (current_target_byte_order == 0)
+ current_target_byte_order = WITH_DEFAULT_TARGET_BYTE_ORDER;
+
+ /* verify the target byte order */
+ if (CURRENT_TARGET_BYTE_ORDER == 0)
+ {
+ sim_io_eprintf (sd, "Target byte order unspecified\n");
+ return SIM_RC_FAIL;
+ }
+ if (CURRENT_TARGET_BYTE_ORDER != current_target_byte_order)
+ sim_io_eprintf (sd, "Target (%s) and configured (%s) byte order in conflict\n",
+ config_byte_order_to_a (current_target_byte_order),
+ config_byte_order_to_a (CURRENT_TARGET_BYTE_ORDER));
+ if (prefered_target_byte_order != 0
+ && CURRENT_TARGET_BYTE_ORDER != prefered_target_byte_order)
+ sim_io_eprintf (sd, "Target (%s) and specified (%s) byte order in conflict\n",
+ config_byte_order_to_a (CURRENT_TARGET_BYTE_ORDER),
+ config_byte_order_to_a (prefered_target_byte_order));
+
+
+ /* set the stdio */
+ if (current_stdio == 0)
+ current_stdio = WITH_STDIO;
+ if (current_stdio == 0)
+ current_stdio = DO_USE_STDIO;
+
+ /* verify the stdio */
+ if (CURRENT_STDIO == 0)
+ {
+ sim_io_eprintf (sd, "Target standard IO unspecified\n");
+ return SIM_RC_FAIL;
+ }
+ if (CURRENT_STDIO != current_stdio)
+ {
+ sim_io_eprintf (sd, "Target (%s) and configured (%s) standard IO in conflict\n",
+ config_stdio_to_a (CURRENT_STDIO),
+ config_stdio_to_a (current_stdio));
+ return SIM_RC_FAIL;
+ }
+
+
+ /* check the value of MSB */
+ if (WITH_TARGET_WORD_MSB != 0
+ && WITH_TARGET_WORD_MSB != (WITH_TARGET_WORD_BITSIZE - 1))
+ {
+ sim_io_eprintf (sd, "Target bitsize (%d) contradicts target most significant bit (%d)\n",
+ WITH_TARGET_WORD_BITSIZE, WITH_TARGET_WORD_MSB);
+ return SIM_RC_FAIL;
+ }
+
+
+ /* set the environment */
+#if (WITH_TREE_PROPERTIES)
+ if (STATE_ENVIRONMENT (sd) == ALL_ENVIRONMENT)
+ {
+ const char *env =
+ tree_find_string_property(root, "/openprom/options/env");
+ STATE_ENVIRONMENT (sd) = ((strcmp(env, "user") == 0
+ || strcmp(env, "uea") == 0)
+ ? USER_ENVIRONMENT
+ : (strcmp(env, "virtual") == 0
+ || strcmp(env, "vea") == 0)
+ ? VIRTUAL_ENVIRONMENT
+ : (strcmp(env, "operating") == 0
+ || strcmp(env, "oea") == 0)
+ ? OPERATING_ENVIRONMENT
+ : ALL_ENVIRONMENT);
+ }
+#endif
+ if (STATE_ENVIRONMENT (sd) == ALL_ENVIRONMENT)
+ STATE_ENVIRONMENT (sd) = DEFAULT_ENVIRONMENT;
+
+
+ /* set the alignment */
+#if (WITH_TREE_PROPERTIES)
+ if (current_alignment == 0)
+ current_alignment =
+ (tree_find_boolean_property(root, "/openprom/options/strict-alignment?")
+ ? STRICT_ALIGNMENT
+ : NONSTRICT_ALIGNMENT);
+#endif
+ if (current_alignment == 0)
+ current_alignment = WITH_ALIGNMENT;
+ if (current_alignment == 0)
+ current_alignment = WITH_DEFAULT_ALIGNMENT;
+
+ /* verify the alignment */
+ if (CURRENT_ALIGNMENT == 0)
+ {
+ sim_io_eprintf (sd, "Target alignment unspecified\n");
+ return SIM_RC_FAIL;
+ }
+ if (CURRENT_ALIGNMENT != current_alignment)
+ {
+ sim_io_eprintf (sd, "Target (%s) and configured (%s) alignment in conflict\n",
+ config_alignment_to_a (CURRENT_ALIGNMENT),
+ config_alignment_to_a (current_alignment));
+ return SIM_RC_FAIL;
+ }
+
+#if defined (WITH_FLOATING_POINT)
+
+ /* set the floating point */
+ if (current_floating_point == 0)
+ current_floating_point = WITH_FLOATING_POINT;
+
+ /* verify the floating point */
+ if (CURRENT_FLOATING_POINT == 0)
+ {
+ sim_io_eprintf (sd, "Target floating-point unspecified\n");
+ return SIM_RC_FAIL;
+ }
+ if (CURRENT_FLOATING_POINT != current_floating_point)
+ {
+ sim_io_eprintf (sd, "Target (%s) and configured (%s) floating-point in conflict\n",
+ config_alignment_to_a (CURRENT_FLOATING_POINT),
+ config_alignment_to_a (current_floating_point));
+ return SIM_RC_FAIL;
+ }
+
+#endif
+ return SIM_RC_OK;
+}
+
+
+void
+print_sim_config (SIM_DESC sd)
+{
+#if defined (__GNUC__) && defined (__VERSION__)
+ sim_io_printf (sd, "Compiled by GCC %s on %s %s\n",
+ __VERSION__, __DATE__, __TIME__);
+#else
+ sim_io_printf (sd, "Compiled on %s %s\n", __DATE__, __TIME__);
+#endif
+
+ sim_io_printf (sd, "WITH_TARGET_BYTE_ORDER = %s\n",
+ config_byte_order_to_a (WITH_TARGET_BYTE_ORDER));
+
+ sim_io_printf (sd, "WITH_DEFAULT_TARGET_BYTE_ORDER = %s\n",
+ config_byte_order_to_a (WITH_DEFAULT_TARGET_BYTE_ORDER));
+
+ sim_io_printf (sd, "WITH_HOST_BYTE_ORDER = %s\n",
+ config_byte_order_to_a (WITH_HOST_BYTE_ORDER));
+
+ sim_io_printf (sd, "WITH_STDIO = %s\n",
+ config_stdio_to_a (WITH_STDIO));
+
+ sim_io_printf (sd, "WITH_TARGET_WORD_MSB = %d\n",
+ WITH_TARGET_WORD_MSB);
+
+ sim_io_printf (sd, "WITH_TARGET_WORD_BITSIZE = %d\n",
+ WITH_TARGET_WORD_BITSIZE);
+
+ sim_io_printf (sd, "WITH_TARGET_ADDRESS_BITSIZE = %d\n",
+ WITH_TARGET_ADDRESS_BITSIZE);
+
+ sim_io_printf (sd, "WITH_TARGET_CELL_BITSIZE = %d\n",
+ WITH_TARGET_CELL_BITSIZE);
+
+ sim_io_printf (sd, "WITH_TARGET_FLOATING_POINT_BITSIZE = %d\n",
+ WITH_TARGET_FLOATING_POINT_BITSIZE);
+
+ sim_io_printf (sd, "WITH_ENVIRONMENT = %s\n",
+ config_environment_to_a (WITH_ENVIRONMENT));
+
+ sim_io_printf (sd, "WITH_ALIGNMENT = %s\n",
+ config_alignment_to_a (WITH_ALIGNMENT));
+
+#if defined (WITH_DEFAULT_ALIGNMENT)
+ sim_io_printf (sd, "WITH_DEFAULT_ALIGNMENT = %s\n",
+ config_alignment_to_a (WITH_DEFAULT_ALIGNMENT));
+#endif
+
+#if defined (WITH_XOR_ENDIAN)
+ sim_io_printf (sd, "WITH_XOR_ENDIAN = %d\n", WITH_XOR_ENDIAN);
+#endif
+
+#if defined (WITH_FLOATING_POINT)
+ sim_io_printf (sd, "WITH_FLOATING_POINT = %s\n",
+ config_floating_point_to_a (WITH_FLOATING_POINT));
+#endif
+
+#if defined (WITH_SMP)
+ sim_io_printf (sd, "WITH_SMP = %d\n", WITH_SMP);
+#endif
+
+#if defined (WITH_RESERVED_BITS)
+ sim_io_printf (sd, "WITH_RESERVED_BITS = %d\n", WITH_RESERVED_BITS);
+#endif
+
+#if defined (WITH_PROFILE)
+ sim_io_printf (sd, "WITH_PROFILE = %d\n", WITH_PROFILE);
+#endif
+
+}