#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
+#include <getopt.h>
+#include <execinfo.h>
+#include <ecoli_log.h>
#include <ecoli_test.h>
-#include <ecoli_tk_str.h>
-#include <ecoli_tk_seq.h>
-#include <ecoli_tk_space.h>
-#include <ecoli_tk_or.h>
+#include <ecoli_malloc.h>
-static void test(void)
+#define COUNT_OF(x) ((sizeof(x)/sizeof(0[x])) / \
+ ((size_t)(!(sizeof(x) % sizeof(0[x])))))
+
+static int log_level = EC_LOG_INFO;
+static int alloc_fail_proba = 0;
+
+static const char ec_short_options[] =
+ "h" /* help */
+ "l:" /* log-level */
+ "r:" /* random-alloc-fail */
+ ;
+
+#define EC_OPT_HELP "help"
+#define EC_OPT_LOG_LEVEL "log-level"
+#define EC_OPT_RANDOM_ALLOC_FAIL "random-alloc-fail"
+
+static const struct option ec_long_options[] = {
+ {EC_OPT_HELP, 1, NULL, 'h'},
+ {EC_OPT_LOG_LEVEL, 1, NULL, 'l'},
+ {EC_OPT_RANDOM_ALLOC_FAIL, 1, NULL, 'r'},
+ {NULL, 0, NULL, 0}
+};
+
+static void usage(const char *prgname)
+{
+ printf("%s [options]\n"
+ " -h\n"
+ " --"EC_OPT_HELP"\n"
+ " Show this help.\n"
+ " -l <level>\n"
+ " --"EC_OPT_LOG_LEVEL"=<level>\n"
+ " Set log level (0 = no log, 6 = verbose).\n"
+ " -r <probability>\n"
+ " --"EC_OPT_RANDOM_ALLOC_FAIL"=<probability>\n"
+ " Cause malloc to fail randomly. This helps to debug\n"
+ " leaks or crashes in error cases. The probability is\n"
+ " between 0 and 100.\n"
+ , prgname);
+}
+
+static int
+parse_int(const char *s, int min, int max, int *ret, unsigned int base)
+{
+ char *end = NULL;
+ long long n;
+
+ n = strtoll(s, &end, base);
+ if ((s[0] == '\0') || (end == NULL) || (*end != '\0'))
+ return -1;
+ if (n < min)
+ return -1;
+ if (n > max)
+ return -1;
+
+ *ret = n;
+ return 0;
+}
+
+static void parse_args(int argc, char **argv)
+{
+ int opt;
+
+ while ((opt = getopt_long(argc, argv, ec_short_options,
+ ec_long_options, NULL)) != EOF) {
+
+ switch (opt) {
+ case 'h': /* help */
+ usage(argv[0]);
+ exit(0);
+
+ case 'l': /* log-level */
+ if (parse_int(optarg, EC_LOG_EMERG,
+ EC_LOG_DEBUG, &log_level, 10) < 0) {
+ printf("Invalid log value\n");
+ usage(argv[0]);
+ exit(1);
+ }
+ break;
+
+ case 'r': /* random-alloc-fail */
+ if (parse_int(optarg, 0, 100, &alloc_fail_proba,
+ 10) < 0) {
+ printf("Invalid probability value\n");
+ usage(argv[0]);
+ exit(1);
+ }
+ break;
+
+ default:
+ usage(argv[0]);
+ exit(1);
+ }
+ }
+}
+
+TAILQ_HEAD(debug_alloc_hdr_list, debug_alloc_hdr);
+static struct debug_alloc_hdr_list debug_alloc_hdr_list =
+ TAILQ_HEAD_INITIALIZER(debug_alloc_hdr_list);
+
+#define STACK_SZ 16
+struct debug_alloc_hdr {
+ TAILQ_ENTRY(debug_alloc_hdr) next;
+ const char *file;
+ unsigned int line;
+ size_t size;
+ void *stack[STACK_SZ];
+ int stacklen;
+ unsigned int cookie;
+};
+
+struct debug_alloc_ftr {
+ unsigned int cookie;
+} __attribute__((packed));
+
+static void *debug_malloc(size_t size, const char *file, unsigned int line)
+{
+ struct debug_alloc_hdr *hdr;
+ struct debug_alloc_ftr *ftr;
+ size_t new_size = size + sizeof(*hdr) + sizeof(*ftr);
+ void *ret;
+
+
+ if (alloc_fail_proba != 0 && (random() % 100) < alloc_fail_proba)
+ hdr = NULL;
+ else
+ hdr = malloc(new_size);
+
+ if (hdr == NULL) {
+ ret = NULL;
+ } else {
+ hdr->file = file;
+ hdr->line = line;
+ hdr->size = size;
+ hdr->stacklen = backtrace(hdr->stack, COUNT_OF(hdr->stack));
+ hdr->cookie = 0x12345678;
+ TAILQ_INSERT_TAIL(&debug_alloc_hdr_list, hdr, next);
+ ret = hdr + 1;
+ ftr = (struct debug_alloc_ftr *)(
+ (char *)hdr + size + sizeof(*hdr));
+ ftr->cookie = 0x87654321;
+ }
+
+ ec_log(EC_LOG_DEBUG, "%s:%d: info: malloc(%zd) -> %p\n",
+ file, line, size, ret);
+
+ return ret;
+}
+
+static void debug_free(void *ptr, const char *file, unsigned int line)
{
- struct ec_tk *seq;
- struct ec_parsed_tk *p;
- const char *name;
-
- seq = ec_tk_seq_new_list(NULL,
- ec_tk_str_new(NULL, "hello"),
- ec_tk_space_new(NULL),
- ec_tk_or_new_list("name",
- ec_tk_str_new(NULL, "john"),
- ec_tk_str_new(NULL, "mike"),
- EC_TK_ENDLIST),
- EC_TK_ENDLIST);
- if (seq == NULL) {
- printf("cannot create token\n");
+ struct debug_alloc_hdr *hdr, *h;
+ struct debug_alloc_ftr *ftr;
+
+ (void)file;
+ (void)line;
+
+ ec_log(EC_LOG_DEBUG, "%s:%d: info: free(%p)\n", file, line, ptr);
+
+ if (ptr == NULL)
return;
+
+ hdr = (ptr - sizeof(*hdr));
+ if (hdr->cookie != 0x12345678) {
+ ec_log(EC_LOG_ERR, "%s:%d: error: free(%p): bad start cookie\n",
+ file, line, ptr);
+ abort();
}
- /* ok */
- p = ec_tk_parse(seq, "hello mike");
- ec_parsed_tk_dump(p);
- name = ec_parsed_tk_to_string(ec_parsed_tk_find_first(p, "name"));
- printf("parsed with name=%s\n", name);
- ec_parsed_tk_free(p);
-
- /* ko */
- p = ec_tk_parse(seq, "hello robert");
- ec_parsed_tk_dump(p);
- name = ec_parsed_tk_to_string(ec_parsed_tk_find_first(p, "name"));
- printf("parsed with name=%s\n", name);
- ec_parsed_tk_free(p);
-
- ec_tk_free(seq);
+ ftr = (ptr + hdr->size);
+ if (ftr->cookie != 0x87654321) {
+ ec_log(EC_LOG_ERR, "%s:%d: error: free(%p): bad end cookie\n",
+ file, line, ptr);
+ abort();
+ }
+
+ TAILQ_FOREACH(h, &debug_alloc_hdr_list, next) {
+ if (h == hdr)
+ break;
+ }
+
+ if (h == NULL) {
+ ec_log(EC_LOG_ERR, "%s:%d: error: free(%p): bad ptr\n",
+ file, line, ptr);
+ abort();
+ }
+
+ TAILQ_REMOVE(&debug_alloc_hdr_list, hdr, next);
+ free(hdr);
+}
+
+static void *debug_realloc(void *ptr, size_t size, const char *file,
+ unsigned int line)
+{
+ struct debug_alloc_hdr *hdr, *h;
+ struct debug_alloc_ftr *ftr;
+ size_t new_size = size + sizeof(*hdr) + sizeof(unsigned int);
+ void *ret;
+
+ if (ptr != NULL) {
+ hdr = (ptr - sizeof(*hdr));
+ if (hdr->cookie != 0x12345678) {
+ ec_log(EC_LOG_ERR,
+ "%s:%d: error: realloc(%p): bad start cookie\n",
+ file, line, ptr);
+ abort();
+ }
+
+ ftr = (ptr + hdr->size);
+ if (ftr->cookie != 0x87654321) {
+ ec_log(EC_LOG_ERR,
+ "%s:%d: error: realloc(%p): bad end cookie\n",
+ file, line, ptr);
+ abort();
+ }
+
+ TAILQ_FOREACH(h, &debug_alloc_hdr_list, next) {
+ if (h == hdr)
+ break;
+ }
+
+ if (h == NULL) {
+ ec_log(EC_LOG_ERR, "%s:%d: error: realloc(%p): bad ptr\n",
+ file, line, ptr);
+ abort();
+ }
+
+ TAILQ_REMOVE(&debug_alloc_hdr_list, h, next);
+ hdr = realloc(hdr, new_size);
+ if (hdr == NULL) {
+ TAILQ_INSERT_TAIL(&debug_alloc_hdr_list, h, next);
+ ret = NULL;
+ } else {
+ ret = hdr + 1;
+ }
+ } else {
+ hdr = realloc(NULL, new_size);
+ if (hdr == NULL)
+ ret = NULL;
+ else
+ ret = hdr + 1;
+ }
+
+ if (hdr != NULL) {
+ hdr->file = file;
+ hdr->line = line;
+ hdr->size = size;
+ hdr->stacklen = backtrace(hdr->stack, COUNT_OF(hdr->stack));
+ hdr->cookie = 0x12345678;
+ TAILQ_INSERT_TAIL(&debug_alloc_hdr_list, hdr, next);
+ ftr = (struct debug_alloc_ftr *)(
+ (char *)hdr + size + sizeof(*hdr));
+ ftr->cookie = 0x87654321;
+ }
+
+ ec_log(EC_LOG_DEBUG, "%s:%d: info: realloc(%p, %zd) -> %p\n",
+ file, line, ptr, size, ret);
+
+ return ret;
}
-int main(void)
+static int debug_alloc_dump_leaks(void)
{
- ec_test_all();
+ struct debug_alloc_hdr *hdr;
+ int i;
+ char **buffer;
+
+ if (TAILQ_EMPTY(&debug_alloc_hdr_list))
+ return 0;
+
+ TAILQ_FOREACH(hdr, &debug_alloc_hdr_list, next) {
+ ec_log(EC_LOG_ERR,
+ "%s:%d: error: memory leak size=%zd ptr=%p\n",
+ hdr->file, hdr->line, hdr->size, hdr + 1);
+ buffer = backtrace_symbols(hdr->stack, hdr->stacklen);
+ if (buffer == NULL) {
+ for (i = 0; i < hdr->stacklen; i++)
+ ec_log(EC_LOG_ERR, " %p\n", hdr->stack[i]);
+ } else {
+ for (i = 0; i < hdr->stacklen; i++)
+ ec_log(EC_LOG_ERR, " %s\n",
+ buffer ? buffer[i] : "unknown");
+ }
+ free(buffer);
+ }
+
+ ec_log(EC_LOG_ERR,
+ " missing static syms, use: addr2line -f -e <prog> <addr>\n");
+
+ return -1;
+}
+
+static int debug_log(unsigned int level, void *opaque, const char *str)
+{
+ (void)opaque;
+
+ if (level > (unsigned int)log_level)
+ return 0;
+
+ return printf("%s", str);
+}
+
+int main(int argc, char **argv)
+{
+ int ret, leaks;
+
+ parse_args(argc, argv);
+
+ ec_log_register(debug_log, NULL);
+
+ /* register a new malloc to track memleaks */
+ TAILQ_INIT(&debug_alloc_hdr_list);
+ if (ec_malloc_register(debug_malloc, debug_free, debug_realloc) < 0) {
+ ec_log(EC_LOG_ERR, "cannot register new malloc\n");
+ return -1;
+ }
+
+ ret = ec_test_all();
+
+ ec_malloc_unregister();
+ leaks = debug_alloc_dump_leaks();
+
+ if (alloc_fail_proba == 0 && ret != 0) {
+ printf("tests failed\n");
+ return 1;
+ } else if (alloc_fail_proba != 0 && leaks != 0) {
+ printf("tests failed (memory leak)\n");
+ return 1;
+ }
- test();
+ printf("\ntests ok\n");
return 0;
}
git.droids-corp.org / protos / libecoli.git / blobdiff