Commit ae44a2f6 authored by David Howells's avatar David Howells

ASN.1: Add an ASN.1 compiler option to dump the element tree

Add an ASN.1 compiler option to dump the element tree to stdout.
Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
Reviewed-By: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent 459c15e5
......@@ -13,6 +13,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
......@@ -311,9 +312,11 @@ struct token {
static struct token *token_list;
static unsigned nr_tokens;
static _Bool verbose;
static bool verbose_opt;
static bool debug_opt;
#define debug(fmt, ...) do { if (verbose) printf(fmt, ## __VA_ARGS__); } while (0)
#define verbose(fmt, ...) do { if (verbose_opt) printf(fmt, ## __VA_ARGS__); } while (0)
#define debug(fmt, ...) do { if (debug_opt) printf(fmt, ## __VA_ARGS__); } while (0)
static int directive_compare(const void *_key, const void *_pdir)
{
......@@ -518,7 +521,7 @@ static void tokenise(char *buffer, char *end)
}
nr_tokens = tix;
debug("Extracted %u tokens\n", nr_tokens);
verbose("Extracted %u tokens\n", nr_tokens);
#if 0
{
......@@ -534,6 +537,7 @@ static void tokenise(char *buffer, char *end)
static void build_type_list(void);
static void parse(void);
static void dump_elements(void);
static void render(FILE *out, FILE *hdr);
/*
......@@ -548,16 +552,27 @@ int main(int argc, char **argv)
char *kbuild_verbose;
int fd;
kbuild_verbose = getenv("KBUILD_VERBOSE");
if (kbuild_verbose)
verbose_opt = atoi(kbuild_verbose);
while (argc > 4) {
if (strcmp(argv[1], "-v") == 0)
verbose_opt = true;
else if (strcmp(argv[1], "-d") == 0)
debug_opt = true;
else
break;
memmove(&argv[1], &argv[2], (argc - 2) * sizeof(char *));
argc--;
}
if (argc != 4) {
fprintf(stderr, "Format: %s <grammar-file> <c-file> <hdr-file>\n",
fprintf(stderr, "Format: %s [-v] [-d] <grammar-file> <c-file> <hdr-file>\n",
argv[0]);
exit(2);
}
kbuild_verbose = getenv("KBUILD_VERBOSE");
if (kbuild_verbose)
verbose = atoi(kbuild_verbose);
filename = argv[1];
outputname = argv[2];
headername = argv[3];
......@@ -608,6 +623,7 @@ int main(int argc, char **argv)
tokenise(buffer, buffer + readlen);
build_type_list();
parse();
dump_elements();
out = fopen(outputname, "w");
if (!out) {
......@@ -756,7 +772,7 @@ static void build_type_list(void)
qsort(type_index, nr, sizeof(type_index[0]), type_index_compare);
debug("Extracted %u types\n", nr_types);
verbose("Extracted %u types\n", nr_types);
#if 0
for (n = 0; n < nr_types; n++) {
struct type *type = type_index[n];
......@@ -801,7 +817,7 @@ static void parse(void)
} while (type++, !(type->flags & TYPE_STOP_MARKER));
debug("Extracted %u actions\n", nr_actions);
verbose("Extracted %u actions\n", nr_actions);
}
static struct element *element_list;
......@@ -1192,6 +1208,54 @@ overrun_error:
exit(1);
}
static void dump_element(const struct element *e, int level)
{
const struct element *c;
const struct type *t = e->type_def;
const char *name = e->name ? e->name->value : ".";
int nsize = e->name ? e->name->size : 1;
const char *tname = t && t->name ? t->name->value : ".";
int tnsize = t && t->name ? t->name->size : 1;
char tag[32];
if (e->class == 0 && e->method == 0 && e->tag == 0)
strcpy(tag, "<...>");
else if (e->class == ASN1_UNIV)
sprintf(tag, "%s %s %s",
asn1_classes[e->class],
asn1_methods[e->method],
asn1_universal_tags[e->tag]);
else
sprintf(tag, "%s %s %u",
asn1_classes[e->class],
asn1_methods[e->method],
e->tag);
printf("%c%c%c%c%c %c %*s[*] \e[33m%s\e[m %*.*s %*.*s \e[35m%s\e[m\n",
e->flags & ELEMENT_IMPLICIT ? 'I' : '-',
e->flags & ELEMENT_EXPLICIT ? 'E' : '-',
e->flags & ELEMENT_TAG_SPECIFIED ? 'T' : '-',
e->flags & ELEMENT_SKIPPABLE ? 'S' : '-',
e->flags & ELEMENT_CONDITIONAL ? 'C' : '-',
"-tTqQcaro"[e->compound],
level, "",
tag,
tnsize, tnsize, tname,
nsize, nsize, name,
e->action ? e->action->name : "");
if (e->compound == TYPE_REF)
dump_element(e->type->type->element, level + 3);
else
for (c = e->children; c; c = c->next)
dump_element(c, level + 3);
}
static void dump_elements(void)
{
if (debug_opt)
dump_element(type_list[0].element, 0);
}
static void render_element(FILE *out, struct element *e, struct element *tag);
static void render_out_of_line_list(FILE *out);
......@@ -1293,7 +1357,7 @@ static void render(FILE *out, FILE *hdr)
}
/* We do two passes - the first one calculates all the offsets */
debug("Pass 1\n");
verbose("Pass 1\n");
nr_entries = 0;
root = &type_list[0];
render_element(NULL, root->element, NULL);
......@@ -1304,7 +1368,7 @@ static void render(FILE *out, FILE *hdr)
e->flags &= ~ELEMENT_RENDERED;
/* And then we actually render */
debug("Pass 2\n");
verbose("Pass 2\n");
fprintf(out, "\n");
fprintf(out, "static const unsigned char %s_machine[] = {\n",
grammar_name);
......
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