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: David Howells <dhowells@redhat.com> Reviewed-By: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
David Howells
parent
459c15e53c
commit
ae44a2f6a0
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@ -13,6 +13,7 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <string.h>
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#include <ctype.h>
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#include <unistd.h>
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@ -311,9 +312,11 @@ struct token {
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static struct token *token_list;
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static unsigned nr_tokens;
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static _Bool verbose;
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static bool verbose_opt;
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static bool debug_opt;
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#define debug(fmt, ...) do { if (verbose) printf(fmt, ## __VA_ARGS__); } while (0)
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#define verbose(fmt, ...) do { if (verbose_opt) printf(fmt, ## __VA_ARGS__); } while (0)
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#define debug(fmt, ...) do { if (debug_opt) printf(fmt, ## __VA_ARGS__); } while (0)
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static int directive_compare(const void *_key, const void *_pdir)
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{
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@ -518,7 +521,7 @@ static void tokenise(char *buffer, char *end)
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}
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nr_tokens = tix;
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debug("Extracted %u tokens\n", nr_tokens);
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verbose("Extracted %u tokens\n", nr_tokens);
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#if 0
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{
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@ -534,6 +537,7 @@ static void tokenise(char *buffer, char *end)
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static void build_type_list(void);
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static void parse(void);
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static void dump_elements(void);
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static void render(FILE *out, FILE *hdr);
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/*
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@ -548,16 +552,27 @@ int main(int argc, char **argv)
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char *kbuild_verbose;
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int fd;
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kbuild_verbose = getenv("KBUILD_VERBOSE");
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if (kbuild_verbose)
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verbose_opt = atoi(kbuild_verbose);
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while (argc > 4) {
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if (strcmp(argv[1], "-v") == 0)
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verbose_opt = true;
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else if (strcmp(argv[1], "-d") == 0)
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debug_opt = true;
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else
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break;
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memmove(&argv[1], &argv[2], (argc - 2) * sizeof(char *));
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argc--;
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}
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if (argc != 4) {
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fprintf(stderr, "Format: %s <grammar-file> <c-file> <hdr-file>\n",
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fprintf(stderr, "Format: %s [-v] [-d] <grammar-file> <c-file> <hdr-file>\n",
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argv[0]);
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exit(2);
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}
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kbuild_verbose = getenv("KBUILD_VERBOSE");
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if (kbuild_verbose)
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verbose = atoi(kbuild_verbose);
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filename = argv[1];
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outputname = argv[2];
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headername = argv[3];
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@ -608,6 +623,7 @@ int main(int argc, char **argv)
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tokenise(buffer, buffer + readlen);
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build_type_list();
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parse();
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dump_elements();
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out = fopen(outputname, "w");
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if (!out) {
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@ -756,7 +772,7 @@ static void build_type_list(void)
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qsort(type_index, nr, sizeof(type_index[0]), type_index_compare);
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debug("Extracted %u types\n", nr_types);
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verbose("Extracted %u types\n", nr_types);
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#if 0
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for (n = 0; n < nr_types; n++) {
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struct type *type = type_index[n];
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@ -801,7 +817,7 @@ static void parse(void)
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} while (type++, !(type->flags & TYPE_STOP_MARKER));
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debug("Extracted %u actions\n", nr_actions);
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verbose("Extracted %u actions\n", nr_actions);
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}
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static struct element *element_list;
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@ -1192,6 +1208,54 @@ static struct element *parse_compound(struct token **_cursor, struct token *end,
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exit(1);
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}
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static void dump_element(const struct element *e, int level)
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{
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const struct element *c;
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const struct type *t = e->type_def;
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const char *name = e->name ? e->name->value : ".";
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int nsize = e->name ? e->name->size : 1;
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const char *tname = t && t->name ? t->name->value : ".";
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int tnsize = t && t->name ? t->name->size : 1;
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char tag[32];
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if (e->class == 0 && e->method == 0 && e->tag == 0)
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strcpy(tag, "<...>");
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else if (e->class == ASN1_UNIV)
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sprintf(tag, "%s %s %s",
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asn1_classes[e->class],
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asn1_methods[e->method],
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asn1_universal_tags[e->tag]);
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else
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sprintf(tag, "%s %s %u",
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asn1_classes[e->class],
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asn1_methods[e->method],
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e->tag);
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printf("%c%c%c%c%c %c %*s[*] \e[33m%s\e[m %*.*s %*.*s \e[35m%s\e[m\n",
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e->flags & ELEMENT_IMPLICIT ? 'I' : '-',
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e->flags & ELEMENT_EXPLICIT ? 'E' : '-',
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e->flags & ELEMENT_TAG_SPECIFIED ? 'T' : '-',
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e->flags & ELEMENT_SKIPPABLE ? 'S' : '-',
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e->flags & ELEMENT_CONDITIONAL ? 'C' : '-',
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"-tTqQcaro"[e->compound],
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level, "",
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tag,
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tnsize, tnsize, tname,
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nsize, nsize, name,
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e->action ? e->action->name : "");
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if (e->compound == TYPE_REF)
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dump_element(e->type->type->element, level + 3);
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else
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for (c = e->children; c; c = c->next)
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dump_element(c, level + 3);
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}
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static void dump_elements(void)
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{
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if (debug_opt)
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dump_element(type_list[0].element, 0);
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}
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static void render_element(FILE *out, struct element *e, struct element *tag);
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static void render_out_of_line_list(FILE *out);
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@ -1293,7 +1357,7 @@ static void render(FILE *out, FILE *hdr)
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}
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/* We do two passes - the first one calculates all the offsets */
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debug("Pass 1\n");
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verbose("Pass 1\n");
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nr_entries = 0;
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root = &type_list[0];
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render_element(NULL, root->element, NULL);
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@ -1304,7 +1368,7 @@ static void render(FILE *out, FILE *hdr)
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e->flags &= ~ELEMENT_RENDERED;
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/* And then we actually render */
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debug("Pass 2\n");
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verbose("Pass 2\n");
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fprintf(out, "\n");
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fprintf(out, "static const unsigned char %s_machine[] = {\n",
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grammar_name);
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