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T: improve to_vcd tracer

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Make it compatible with 'template' gtwave files as found in openair's
repository.

The type VCD_NAME was added to the VCD IDs in T_messages.txt.
The database processing code was adapted to use it.
The tracer to_vcd was adapted to use it and render the produced vcd
output compatible with the 'template' gtkwave files.

When running to_vcd, do not forget to pass -vcd to use this feature.
This commit is contained in:
Cedric Roux
2018-08-08 15:42:02 +02:00
parent fdd4366daf
commit 5b17b036ba
4 changed files with 385 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files
common/utils/T/tracer/to_vcd.c
+50 -9
View File
@@ -12,7 +12,14 @@
#include "logger/logger.h"
#include "view/view.h"
enum var_type {
DEFAULT,
VCD_FUNCTION,
VCD_VARIABLE
};
typedef struct {
enum var_type type;
char *event;
char *arg;
char *vcd_name;
@@ -44,16 +51,39 @@ void vcd_write_header(vcd_vars *v, int n)
"$version\n"
" to_vcd\n"
"$end\n"
"$timescale 1ns $end\n"
"$timescale 1ns $end\n") <= 0) abort();
if (fprintf(out,
"$scope module logic $end\n") <= 0) abort();
for (i = 0; i < n; i++)
if (v[i].type == DEFAULT)
if (fprintf(out, "$var wire %d %s %s $end\n",
v[i].boolean ? 1 : 64,
v[i].vcd_name, v[i].vcd_name) <= 0) abort();
if (fprintf(out,
"$upscope $end\n") <= 0) abort();
if (fprintf(out,
"$scope module functions $end\n") <= 0) abort();
for (i = 0; i < n; i++)
if (v[i].type == VCD_FUNCTION)
if (fprintf(out, "$var wire %d %s %s $end\n",
v[i].boolean ? 1 : 64,
v[i].vcd_name, v[i].vcd_name) <= 0) abort();
if (fprintf(out,
"$upscope $end\n") <= 0) abort();
if (fprintf(out,
"$scope module variables $end\n") <= 0) abort();
for (i = 0; i < n; i++)
if (fprintf(out, "$var wire %d %s %s $end\n",
v[i].boolean ? 1 : 64,
v[i].vcd_name, v[i].vcd_name) <= 0) abort();
if (v[i].type == VCD_VARIABLE)
if (fprintf(out, "$var wire %d %s %s $end\n",
v[i].boolean ? 1 : 64,
v[i].vcd_name, v[i].vcd_name) <= 0) abort();
if (fprintf(out,
"$upscope $end\n") <= 0) abort();
if (fprintf(out,
"$upscope $end\n"
"$enddefinitions $end\n"
"$dumpvars\n") <= 0) abort();
@@ -194,12 +224,13 @@ void force_stop(int x)
}
vcd_vars *add_var(vcd_vars *vars, int nvars,
char *event, char *arg, char *vcd_name, int is_boolean)
char *event, char *arg, char *vcd_name, int is_boolean, enum var_type t)
{
if (nvars % 64 == 0) {
vars = realloc(vars, (nvars+64) * sizeof(vcd_vars));
if (vars == NULL) abort();
}
vars[nvars].type = t;
vars[nvars].event = event;
vars[nvars].arg = arg;
vars[nvars].vcd_name = vcd_name;
@@ -240,7 +271,7 @@ int main(int n, char **v)
char *event = v[++i];
char *arg = v[++i];
char *vcd_name = v[++i];
vars = add_var(vars, nvars, event, arg, vcd_name, 1);
vars = add_var(vars, nvars, event, arg, vcd_name, 1, DEFAULT);
nvars++;
continue;
}
@@ -248,7 +279,7 @@ int main(int n, char **v)
char *event = v[++i];
char *arg = v[++i];
char *vcd_name = v[++i];
vars = add_var(vars, nvars, event, arg, vcd_name, 0);
vars = add_var(vars, nvars, event, arg, vcd_name, 0, DEFAULT);
nvars++;
continue;
}
@@ -283,20 +314,30 @@ int main(int n, char **v)
/* activate all VCD traces */
for (i = 0; i < number_of_events; i++) {
int is_boolean;
enum var_type type;
int prefix_length;
char *name = event_name_from_id(database, i);
char *vcd_name;
char *var_prefix = "VCD_VARIABLE_";
char *fun_prefix = "VCD_FUNCTION_";
if (!strncmp(name, var_prefix, strlen(var_prefix))) {
prefix_length = strlen(var_prefix);
is_boolean = 0;
type = VCD_VARIABLE;
} else if (!strncmp(name, fun_prefix, strlen(fun_prefix))) {
prefix_length = strlen(fun_prefix);
is_boolean = 1;
type = VCD_FUNCTION;
} else
continue;
vcd_name = event_vcd_name_from_id(database, i);
if (vcd_name == NULL) {
vcd_name = name+prefix_length;
printf("WARNING: ID %s does not define VCD_NAME in the file %s, using %s\n",
name, database_filename, vcd_name);
}
vars = add_var(vars, nvars,
name, "value", name+prefix_length, is_boolean);
name, "value", vcd_name, is_boolean, type);
nvars++;
}
}