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/*
* Copyright (c) 2002-2021 Stephen Williams (steve@icarus.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
# include "sys_priv.h"
# include <string.h>
# include <stdlib.h>
# include <assert.h>
/*
* Compare the +arguments passed to the simulator with the argument
* passed to the $test$plusargs. If there is a simulator argument that
* is like this argument, then return true. Otherwise return false.
*/
static PLI_INT32 sys_test_plusargs_calltf(ICARUS_VPI_CONST PLI_BYTE8*name)
{
s_vpi_value val;
s_vpi_vlog_info info;
int idx;
int flag = 0;
size_t slen, len;
(void)name; /* Parameter is not used. */
vpiHandle callh = vpi_handle(vpiSysTfCall, 0);
vpiHandle argv = vpi_iterate(vpiArgument, callh);
val.format = vpiStringVal;
vpi_get_value(vpi_scan(argv), &val);
slen = strlen(val.value.str);
vpi_get_vlog_info(&info);
/* Look for a +arg that matches the prefix supplied. */
for (idx = 0 ; idx < info.argc ; idx += 1) {
/* Skip arguments that are not +args. */
if (info.argv[idx][0] != '+')
continue;
len = strlen(info.argv[idx]+1);
if (len < slen)
continue;
if (strncmp(val.value.str, info.argv[idx]+1, slen) != 0)
continue;
flag = 1;
break;
}
val.format = vpiIntVal;
val.value.integer = flag;
vpi_put_value(callh, &val, 0, vpiNoDelay);
vpi_free_object(argv);
return 0;
}
static PLI_INT32 sys_value_plusargs_compiletf(ICARUS_VPI_CONST PLI_BYTE8*name)
{
vpiHandle callh = vpi_handle(vpiSysTfCall, 0);
vpiHandle argv = vpi_iterate(vpiArgument, callh);
vpiHandle arg;
/* Check that there are arguments. */
if (argv == 0) {
vpi_printf("ERROR: %s:%d: ", vpi_get_str(vpiFile, callh),
(int)vpi_get(vpiLineNo, callh));
vpi_printf("%s requires two arguments.\n", name);
vpip_set_return_value(1);
vpi_control(vpiFinish, 1);
return 0;
}
/* Check that the first argument is a string. */
arg = vpi_scan(argv);
assert(arg != 0);
if ( ! is_string_obj(arg)) {
vpi_printf("ERROR: %s:%d: ", vpi_get_str(vpiFile, callh),
(int)vpi_get(vpiLineNo, callh));
vpi_printf("%s's first argument must be a string.\n", name);
vpip_set_return_value(1);
vpi_control(vpiFinish, 1);
return 0;
}
arg = vpi_scan(argv);
if (! arg) {
vpi_printf("ERROR: %s:%d: ", vpi_get_str(vpiFile, callh),
(int)vpi_get(vpiLineNo, callh));
vpi_printf("%s's requires a second variable argument.\n", name);
vpip_set_return_value(1);
vpi_control(vpiFinish, 1);
return 0;
}
switch (vpi_get(vpiType, arg)) {
case vpiReg:
case vpiIntegerVar:
case vpiBitVar:
case vpiByteVar:
case vpiShortIntVar:
case vpiIntVar:
case vpiLongIntVar:
case vpiRealVar:
case vpiTimeVar:
case vpiStringVar:
break;
default:
vpi_printf("ERROR: %s:%d: ", vpi_get_str(vpiFile, callh),
(int)vpi_get(vpiLineNo, callh));
vpi_printf("%s's second argument must be a variable, found a %s.\n",
name, vpi_get_str(vpiType, arg));
vpip_set_return_value(1);
vpi_control(vpiFinish, 1);
return 0;
}
/* Make sure there are no extra arguments. */
check_for_extra_args(argv, callh, name, "two arguments", 0);
return 0;
}
static PLI_INT32 sys_value_plusargs_calltf(ICARUS_VPI_CONST PLI_BYTE8*name)
{
s_vpi_vlog_info info;
s_vpi_value fmt;
s_vpi_value res;
char msg[64];
char*cp;
int idx;
int flag = 0;
size_t slen, len;
vpiHandle callh = vpi_handle(vpiSysTfCall, 0);
vpiHandle argv = vpi_iterate(vpiArgument, callh);
fmt.format = vpiStringVal;
vpi_get_value(vpi_scan(argv), &fmt);
/* Check for the start of a format string. */
cp = strchr(fmt.value.str, '%');
if (cp == 0) {
snprintf(msg, sizeof(msg), "ERROR: %s:%d:",
vpi_get_str(vpiFile, callh),
(int)vpi_get(vpiLineNo, callh));
msg[sizeof(msg)-1] = 0;
vpi_printf("%s %s is missing a format code.\n", msg, name);
vpi_printf("%*s \"%s\".\n", (int)strlen(msg), " ", fmt.value.str);
vpip_set_return_value(1);
vpi_control(vpiFinish, 1);
return 0;
}
/* This is the length of string we will look for. */
slen = cp - fmt.value.str;
/* Skip a zero. */
cp += 1;
if (*cp == '0') cp += 1;
/* Check the format code. */
switch (*cp) {
case 'd':
case 'D':
case 'o':
case 'O':
case 'h':
case 'H':
case 'x':
case 'X':
case 'b':
case 'B':
case 'e':
case 'E':
case 'f':
case 'F':
case 'g':
case 'G':
case 's':
case 'S':
break;
default:
snprintf(msg, sizeof(msg), "ERROR: %s:%d:",
vpi_get_str(vpiFile, callh),
(int)vpi_get(vpiLineNo, callh));
msg[sizeof(msg)-1] = 0;
vpi_printf("%s %s has an invalid format string:\n", msg, name);
vpi_printf("%*s \"%s\".\n", (int)strlen(msg), " ", fmt.value.str);
vpip_set_return_value(1);
vpi_control(vpiFinish, 1);
return 0;
}
/* Warn if there is any trailing garbage. */
if (*(cp+1) != '\0') {
snprintf(msg, sizeof(msg), "WARNING: %s:%d:",
vpi_get_str(vpiFile, callh),
(int)vpi_get(vpiLineNo, callh));
msg[sizeof(msg)-1] = 0;
vpi_printf("%s Skipping trailing garbage in %s's format string:\n",
msg, name);
vpi_printf("%*s \"%s\".\n", (int)strlen(msg), " ", fmt.value.str);
*(cp+1) = '\0';
}
vpi_get_vlog_info(&info);
/* Look for a +arg that matches the prefix supplied. */
for (idx = 0 ; idx < info.argc ; idx += 1) {
char*sp, *tp, *end;
size_t sp_len;
/* Skip arguments that are not +args. */
if (info.argv[idx][0] != '+')
continue;
len = strlen(info.argv[idx]+1);
if (len < slen)
continue;
if (strncmp(fmt.value.str, info.argv[idx]+1, slen) != 0)
continue;
sp = info.argv[idx]+1+slen;
sp_len = strlen(sp);
switch (*cp) {
case 'd':
case 'D':
res.format = vpiDecStrVal;
/* A decimal string can set the value to "x" or "z". */
if (sp_len == strspn(sp, "xX_") ||
sp_len == strspn(sp, "zZ_")) {
res.value.str = sp;
/* A decimal string must contain only these characters.
* A decimal string can not start with an "_" character.
* A "-" can only be at the start of the string. */
} else if (sp_len != strspn(sp, "-0123456789_") ||
*sp == '_' ||
((tp = strrchr(sp, '-')) && tp != sp)) {
res.value.str = "x";
snprintf(msg, sizeof(msg), "WARNING: %s:%d:",
vpi_get_str(vpiFile, callh),
(int)vpi_get(vpiLineNo, callh));
msg[sizeof(msg)-1] = 0;
vpi_printf("%s Invalid decimal value passed to %s:\n",
msg, name);
vpi_printf("%*s \"%s\".\n", (int)strlen(msg), " ", sp);
} else {
res.value.str = sp;
}
break;
case 'o':
case 'O':
res.format = vpiOctStrVal;
/* An octal string must contain only these characters.
* An octal string can not start with an "_" character.
* A "-" can only be at the start of the string. */
if (sp_len != strspn(sp, "-01234567_xXzZ") ||
*sp == '_' || ((tp = strrchr(sp, '-')) && tp != sp)) {
res.value.str = "x";
snprintf(msg, sizeof(msg), "WARNING: %s:%d:",
vpi_get_str(vpiFile, callh),
(int)vpi_get(vpiLineNo, callh));
msg[sizeof(msg)-1] = 0;
vpi_printf("%s Invalid octal value passed to %s:\n",
msg, name);
vpi_printf("%*s \"%s\".\n", (int)strlen(msg), " ", sp);
} else {
res.value.str = sp;
}
break;
case 'h':
case 'H':
case 'x':
case 'X':
res.format = vpiHexStrVal;
/* A hex. string must contain only these characters.
* A hex. string can not start with an "_" character.
* A "-" can only be at the start of the string. */
if (sp_len != strspn(sp, "-0123456789aAbBcCdDeEfF_xXzZ") ||
*sp == '_' || ((tp = strrchr(sp, '-')) && tp != sp)) {
res.value.str = "x";
snprintf(msg, sizeof(msg), "WARNING: %s:%d:",
vpi_get_str(vpiFile, callh),
(int)vpi_get(vpiLineNo, callh));
msg[sizeof(msg)-1] = 0;
vpi_printf("%s Invalid hex value passed to %s:\n",
msg, name);
vpi_printf("%*s \"%s\".\n", (int)strlen(msg), " ", sp);
} else {
res.value.str = sp;
}
break;
case 'b':
case 'B':
res.format = vpiBinStrVal;
/* A binary string must contain only these characters.
* A binary string can not start with an "_" character.
* A "-" can only be at the start of the string. */
if (sp_len != strspn(sp, "-01_xXzZ") ||
*sp == '_' || ((tp = strrchr(sp, '-')) && tp != sp)) {
res.value.str = "x";
snprintf(msg, sizeof(msg), "WARNING: %s:%d:",
vpi_get_str(vpiFile, callh),
(int)vpi_get(vpiLineNo, callh));
msg[sizeof(msg)-1] = 0;
vpi_printf("%s Invalid binary value passed to %s:\n",
msg, name);
vpi_printf("%*s \"%s\".\n", (int)strlen(msg), " ", sp);
} else {
res.value.str = sp;
}
break;
case 'e':
case 'E':
case 'f':
case 'F':
case 'g':
case 'G':
res.format = vpiRealVal;
res.value.real = strtod(sp, &end);
/* If we didn't get a full conversion print a warning. */
if (*end) {
/* We had an invalid value passed. */
if (end == sp) {
snprintf(msg, sizeof(msg), "WARNING: %s:%d:",
vpi_get_str(vpiFile, callh),
(int)vpi_get(vpiLineNo, callh));
msg[sizeof(msg)-1] = 0;
vpi_printf("%s Invalid real value passed to "
"%s:\n", msg, name);
vpi_printf("%*s \"%s\".\n", (int)strlen(msg), " ",
sp);
/* We have extra garbage at the end. */
} else {
snprintf(msg, sizeof(msg), "WARNING: %s:%d:",
vpi_get_str(vpiFile, callh),
(int)vpi_get(vpiLineNo, callh));
msg[sizeof(msg)-1] = 0;
vpi_printf("%s Extra character(s) \"%s\" found "
"in %s's real string:\n",
msg, end, name);
vpi_printf("%*s \"%s\".\n", (int)strlen(msg), " ",
sp);
}
}
break;
case 's':
case 'S':
res.format = vpiStringVal;
res.value.str = sp;
break;
default:
assert(0);
}
vpi_put_value(vpi_scan(argv), &res, 0, vpiNoDelay);
flag = 1;
break;
}
res.format = vpiIntVal;
res.value.integer = flag;
vpi_put_value(callh, &res, 0, vpiNoDelay);
vpi_free_object(argv);
return 0;
}
void sys_plusargs_register(void)
{
s_vpi_systf_data tf_data;
vpiHandle res;
tf_data.type = vpiSysFunc;
tf_data.sysfunctype = vpiIntFunc;
tf_data.tfname = "$test$plusargs";
tf_data.calltf = sys_test_plusargs_calltf;
tf_data.compiletf = sys_one_string_arg_compiletf;
tf_data.sizetf = 0;
tf_data.user_data = "$test$plusargs";
res = vpi_register_systf(&tf_data);
vpip_make_systf_system_defined(res);
tf_data.type = vpiSysFunc;
tf_data.sysfunctype = vpiIntFunc;
tf_data.tfname = "$value$plusargs";
tf_data.calltf = sys_value_plusargs_calltf;
tf_data.compiletf = sys_value_plusargs_compiletf;
tf_data.sizetf = 0;
tf_data.user_data = "$value$plusargs";
res = vpi_register_systf(&tf_data);
vpip_make_systf_system_defined(res);
}
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