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583 lines
13 KiB
C
583 lines
13 KiB
C
#include <stdio.h>
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#include "xcache.h"
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#include "ext/standard/flock_compat.h"
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#ifdef HAVE_SYS_FILE_H
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# include <sys/file.h>
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#endif
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include "stack.h"
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#include "xcache_globals.h"
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#include "coverager.h"
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#include "utils.h"
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typedef HashTable *coverager_t;
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#define PCOV_HEADER_MAGIC 0x564f4350
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static char *xc_coveragedump_dir = NULL;
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static zend_compile_file_t *origin_compile_file;
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#if 0
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#define DEBUG
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#endif
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/* dumper */
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static void xc_destroy_coverage(void *pDest) /* {{{ */
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{
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coverager_t cov = *(coverager_t*) pDest;
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TRACE("destroy %p", cov);
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zend_hash_destroy(cov);
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efree(cov);
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}
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/* }}} */
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void xcache_mkdirs_ex(char *root, int rootlen, char *path, int pathlen TSRMLS_DC) /* {{{ */
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{
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char *fullpath;
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struct stat st;
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TRACE("mkdirs %s %d %s %d", root, rootlen, path, pathlen);
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fullpath = do_alloca(rootlen + pathlen + 1);
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memcpy(fullpath, root, rootlen);
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memcpy(fullpath + rootlen, path, pathlen);
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fullpath[rootlen + pathlen] = '\0';
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if (stat(fullpath, &st) != 0) {
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char *chr;
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chr = strrchr(path, PHP_DIR_SEPARATOR);
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if (chr && chr != path) {
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*chr = '\0';
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xcache_mkdirs_ex(root, rootlen, path, chr - path TSRMLS_CC);
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*chr = PHP_DIR_SEPARATOR;
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}
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TRACE("mkdir %s", fullpath);
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#if PHP_MAJOR_VERSION > 5
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php_stream_mkdir(fullpath, 0700, REPORT_ERRORS, NULL);
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#else
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mkdir(fullpath, 0700);
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#endif
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}
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free_alloca(fullpath);
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}
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/* }}} */
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static void xc_coverager_save_cov(char *srcfile, char *outfilename, coverager_t cov TSRMLS_DC) /* {{{ */
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{
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long *buf = NULL, *p;
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long covlines, *phits;
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int fd = -1;
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int size;
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int newfile;
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struct stat srcstat, outstat;
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HashPosition pos;
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char *contents = NULL;
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long len;
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if (stat(srcfile, &srcstat) != 0) {
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return;
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}
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newfile = 0;
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if (stat(outfilename, &outstat) != 0) {
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newfile = 1;
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}
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else {
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if (srcstat.st_mtime > outstat.st_mtime) {
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newfile = 1;
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}
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}
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fd = open(outfilename, O_RDWR | O_CREAT, 0600);
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if (fd < 0) {
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char *chr;
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chr = strrchr(srcfile, PHP_DIR_SEPARATOR);
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if (chr) {
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*chr = '\0';
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xcache_mkdirs_ex(xc_coveragedump_dir, strlen(xc_coveragedump_dir), srcfile, chr - srcfile TSRMLS_CC);
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*chr = PHP_DIR_SEPARATOR;
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}
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fd = open(outfilename, O_RDWR | O_CREAT, 0600);
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if (fd < 0) {
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goto bailout;
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}
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}
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if (flock(fd, LOCK_EX) != SUCCESS) {
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goto bailout;
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}
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if (newfile) {
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TRACE("%s", "new file");
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}
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else if (outstat.st_size) {
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len = outstat.st_size;
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contents = emalloc(len);
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if (read(fd, (void *) contents, len) != len) {
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goto bailout;
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}
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TRACE("oldsize %d", (int) len);
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do {
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p = (long *) contents;
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len -= sizeof(long);
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if (len < 0) {
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break;
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}
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if (*p++ != PCOV_HEADER_MAGIC) {
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TRACE("wrong magic in file %s", outfilename);
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break;
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}
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p += 2; /* skip covliens */
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len -= sizeof(long) * 2;
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if (len < 0) {
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break;
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}
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for (; len >= sizeof(long) * 2; len -= sizeof(long) * 2, p += 2) {
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if (zend_hash_index_find(cov, p[0], (void**)&phits) == SUCCESS) {
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if (p[1] == -1) {
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/* OPTIMIZE: already marked */
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continue;
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}
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if (*phits != -1) {
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p[1] += *phits;
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}
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}
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zend_hash_index_update(cov, p[0], &p[1], sizeof(p[1]), NULL);
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}
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} while (0);
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efree(contents);
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contents = NULL;
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}
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/* serialize */
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size = (zend_hash_num_elements(cov) + 1) * sizeof(long) * 2 + sizeof(long);
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p = buf = emalloc(size);
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*p++ = PCOV_HEADER_MAGIC;
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p += 2; /* for covlines */
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covlines = 0;
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zend_hash_internal_pointer_reset_ex(cov, &pos);
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while (zend_hash_get_current_data_ex(cov, (void**)&phits, &pos) == SUCCESS) {
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*p++ = pos->h;
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*p++ = *phits;
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if (*phits > 0) {
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covlines ++;
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}
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zend_hash_move_forward_ex(cov, &pos);
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}
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p = buf + 1;
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p[0] = 0;
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p[1] = covlines;
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ftruncate(fd, 0);
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lseek(fd, 0, SEEK_SET);
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write(fd, (char *) buf, size);
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bailout:
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if (contents) efree(contents);
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if (fd >= 0) close(fd);
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if (buf) efree(buf);
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}
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/* }}} */
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static void xc_coverager_initenv(TSRMLS_D) /* {{{ */
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{
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if (!XG(coverages)) {
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XG(coverages) = emalloc(sizeof(HashTable));
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zend_hash_init(XG(coverages), 0, NULL, xc_destroy_coverage, 0);
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}
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}
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/* }}} */
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static void xc_coverager_clean(TSRMLS_D) /* {{{ */
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{
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if (XG(coverages)) {
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HashPosition pos;
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coverager_t *pcov;
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zend_hash_internal_pointer_reset_ex(XG(coverages), &pos);
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while (zend_hash_get_current_data_ex(XG(coverages), (void **) &pcov, &pos) == SUCCESS) {
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long *phits;
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coverager_t cov;
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HashPosition pos2;
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cov = *pcov;
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zend_hash_internal_pointer_reset_ex(cov, &pos2);
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while (zend_hash_get_current_data_ex(cov, (void**)&phits, &pos2) == SUCCESS) {
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long hits = *phits;
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if (hits != -1) {
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hits = -1;
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zend_hash_index_update(cov, pos2->h, &hits, sizeof(hits), NULL);
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}
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zend_hash_move_forward_ex(cov, &pos2);
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}
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zend_hash_move_forward_ex(XG(coverages), &pos);
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}
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}
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}
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/* }}} */
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static void xc_coverager_cleanup(TSRMLS_D) /* {{{ */
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{
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if (XG(coverages)) {
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zend_hash_destroy(XG(coverages));
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efree(XG(coverages));
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XG(coverages) = NULL;
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}
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}
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/* }}} */
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static void xc_coverager_enable(TSRMLS_D) /* {{{ */
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{
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XG(coverage_enabled) = 1;
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}
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/* }}} */
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static void xc_coverager_disable(TSRMLS_D) /* {{{ */
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{
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XG(coverage_enabled) = 0;
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}
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/* }}} */
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void xc_coverager_request_init(TSRMLS_D) /* {{{ */
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{
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if (XG(coverager)) {
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xc_coverager_enable(TSRMLS_C);
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CG(extended_info) = 1;
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}
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else {
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XG(coverage_enabled) = 0;
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}
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}
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/* }}} */
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static void xc_coverager_autodump(TSRMLS_D) /* {{{ */
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{
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coverager_t *pcov;
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zstr s;
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char *outfilename;
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int dumpdir_len, outfilelen, alloc_len = 0;
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uint size;
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HashPosition pos;
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if (XG(coverages) && xc_coveragedump_dir) {
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dumpdir_len = strlen(xc_coveragedump_dir);
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alloc_len = dumpdir_len + 1 + 128;
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outfilename = emalloc(alloc_len);
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strcpy(outfilename, xc_coveragedump_dir);
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zend_hash_internal_pointer_reset_ex(XG(coverages), &pos);
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while (zend_hash_get_current_data_ex(XG(coverages), (void **) &pcov, &pos) == SUCCESS) {
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zend_hash_get_current_key_ex(XG(coverages), &s, &size, NULL, 0, &pos);
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outfilelen = dumpdir_len + size + 5;
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if (alloc_len < outfilelen) {
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alloc_len = outfilelen + 128;
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outfilename = erealloc(outfilename, alloc_len);
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}
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strcpy(outfilename + dumpdir_len, ZSTR_S(s));
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strcpy(outfilename + dumpdir_len + size - 1, ".pcov");
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TRACE("outfilename %s", outfilename);
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xc_coverager_save_cov(ZSTR_S(s), outfilename, *pcov TSRMLS_CC);
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zend_hash_move_forward_ex(XG(coverages), &pos);
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}
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efree(outfilename);
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}
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}
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/* }}} */
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static void xc_coverager_dump(zval *return_value TSRMLS_DC) /* {{{ */
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{
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coverager_t *pcov;
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HashPosition pos;
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if (XG(coverages)) {
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array_init(return_value);
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zend_hash_internal_pointer_reset_ex(XG(coverages), &pos);
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while (zend_hash_get_current_data_ex(XG(coverages), (void **) &pcov, &pos) == SUCCESS) {
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zval *lines;
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long *phits;
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coverager_t cov;
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HashPosition pos2;
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zstr filename;
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uint size;
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cov = *pcov;
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zend_hash_get_current_key_ex(XG(coverages), &filename, &size, NULL, 0, &pos);
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MAKE_STD_ZVAL(lines);
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array_init(lines);
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zend_hash_internal_pointer_reset_ex(cov, &pos2);
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while (zend_hash_get_current_data_ex(cov, (void**)&phits, &pos2) == SUCCESS) {
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long hits = *phits;
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add_index_long(lines, pos2->h, hits >= 0 ? hits : 0);
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zend_hash_move_forward_ex(cov, &pos2);
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}
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add_assoc_zval_ex(return_value, ZSTR_S(filename), strlen(ZSTR_S(filename)) + 1, lines);
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zend_hash_move_forward_ex(XG(coverages), &pos);
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}
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}
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else {
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RETVAL_NULL();
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}
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}
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/* }}} */
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void xc_coverager_request_shutdown(TSRMLS_D) /* {{{ */
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{
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if (XG(coverager)) {
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xc_coverager_autodump(TSRMLS_C);
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xc_coverager_cleanup(TSRMLS_C);
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}
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}
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/* }}} */
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/* helper func to store hits into coverages */
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static coverager_t xc_coverager_get(char *filename TSRMLS_DC) /* {{{ */
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{
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int len = strlen(filename) + 1;
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coverager_t cov, *pcov;
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if (zend_hash_find(XG(coverages), filename, len, (void **) &pcov) == SUCCESS) {
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TRACE("got coverage %s %p", filename, *pcov);
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return *pcov;
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}
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else {
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cov = emalloc(sizeof(HashTable));
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zend_hash_init(cov, 0, NULL, NULL, 0);
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zend_hash_add(XG(coverages), filename, len, (void **) &cov, sizeof(cov), NULL);
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TRACE("new coverage %s %p", filename, cov);
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return cov;
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}
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}
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/* }}} */
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static void xc_coverager_add_hits(HashTable *cov, long line, long hits TSRMLS_DC) /* {{{ */
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{
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long *poldhits;
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if (line == 0) {
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return;
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}
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if (zend_hash_index_find(cov, line, (void**)&poldhits) == SUCCESS) {
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if (hits == -1) {
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/* OPTIMIZE: -1 == init-ing, but it's already initized */
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return;
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}
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if (*poldhits != -1) {
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hits += *poldhits;
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}
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}
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zend_hash_index_update(cov, line, &hits, sizeof(hits), NULL);
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}
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/* }}} */
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static int xc_coverager_get_op_array_size_no_tail(zend_op_array *op_array) /* {{{ */
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{
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zend_uint size;
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size = op_array->size;
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do {
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next_op:
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if (size == 0) {
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break;
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}
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switch (op_array->opcodes[size - 1].opcode) {
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#ifdef ZEND_HANDLE_EXCEPTION
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case ZEND_HANDLE_EXCEPTION:
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#endif
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case ZEND_RETURN:
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case ZEND_EXT_STMT:
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size --;
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goto next_op;
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}
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} while (0);
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return size;
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}
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/* }}} */
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/* prefill */
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static int xc_coverager_init_op_array(zend_op_array *op_array TSRMLS_DC) /* {{{ */
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{
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zend_uint size;
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coverager_t cov;
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zend_uint i;
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if (op_array->type != ZEND_USER_FUNCTION) {
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return 0;
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}
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size = xc_coverager_get_op_array_size_no_tail(op_array);
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cov = xc_coverager_get(op_array->filename TSRMLS_CC);
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for (i = 0; i < size; i ++) {
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switch (op_array->opcodes[i].opcode) {
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case ZEND_EXT_STMT:
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#if 0
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case ZEND_EXT_FCALL_BEGIN:
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case ZEND_EXT_FCALL_END:
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#endif
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xc_coverager_add_hits(cov, op_array->opcodes[i].lineno, -1 TSRMLS_CC);
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break;
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}
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}
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return 0;
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}
|
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/* }}} */
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static void xc_coverager_init_compile_result(zend_op_array *op_array TSRMLS_DC) /* {{{ */
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{
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xc_compile_result_t cr;
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xc_compile_result_init_cur(&cr, op_array TSRMLS_CC);
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xc_apply_op_array(&cr, (apply_func_t) xc_coverager_init_op_array TSRMLS_CC);
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xc_compile_result_free(&cr);
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}
|
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/* }}} */
|
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static zend_op_array *xc_compile_file_for_coverage(zend_file_handle *h, int type TSRMLS_DC) /* {{{ */
|
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{
|
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zend_op_array *op_array;
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|
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op_array = origin_compile_file(h, type TSRMLS_CC);
|
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if (op_array) {
|
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if (XG(coverager)) {
|
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xc_coverager_initenv(TSRMLS_C);
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xc_coverager_init_compile_result(op_array TSRMLS_CC);
|
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}
|
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}
|
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return op_array;
|
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}
|
|
/* }}} */
|
|
|
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/* hits */
|
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void xc_coverager_handle_ext_stmt(zend_op_array *op_array, zend_uchar op) /* {{{ */
|
|
{
|
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TSRMLS_FETCH();
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|
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if (XG(coverages) && XG(coverage_enabled)) {
|
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int size = xc_coverager_get_op_array_size_no_tail(op_array);
|
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int oplineno = (*EG(opline_ptr)) - op_array->opcodes;
|
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if (oplineno < size) {
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xc_coverager_add_hits(xc_coverager_get(op_array->filename TSRMLS_CC), (*EG(opline_ptr))->lineno, 1 TSRMLS_CC);
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}
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}
|
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}
|
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/* }}} */
|
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|
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/* init/destroy */
|
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int xc_coverager_init(int module_number TSRMLS_DC) /* {{{ */
|
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{
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origin_compile_file = zend_compile_file;
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zend_compile_file = xc_compile_file_for_coverage;
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|
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if (cfg_get_string("xcache.coveragedump_directory", &xc_coveragedump_dir) == SUCCESS && xc_coveragedump_dir) {
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int len = strlen(xc_coveragedump_dir);
|
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if (len) {
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if (xc_coveragedump_dir[len - 1] == '/') {
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xc_coveragedump_dir[len - 1] = '\0';
|
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}
|
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}
|
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if (!strlen(xc_coveragedump_dir)) {
|
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xc_coveragedump_dir = NULL;
|
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}
|
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}
|
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|
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return SUCCESS;
|
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}
|
|
/* }}} */
|
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void xc_coverager_destroy() /* {{{ */
|
|
{
|
|
if (origin_compile_file == xc_compile_file_for_coverage) {
|
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zend_compile_file = origin_compile_file;
|
|
}
|
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if (xc_coveragedump_dir) {
|
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xc_coveragedump_dir = NULL;
|
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}
|
|
}
|
|
/* }}} */
|
|
|
|
/* user api */
|
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/* {{{ proto array xcache_coverager_decode(string data)
|
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* decode specified data which is saved by auto dumper to array
|
|
*/
|
|
PHP_FUNCTION(xcache_coverager_decode)
|
|
{
|
|
char *str;
|
|
int len;
|
|
long *p;
|
|
|
|
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &str, &len) == FAILURE) {
|
|
return;
|
|
}
|
|
|
|
array_init(return_value);
|
|
|
|
p = (long*) str;
|
|
len -= sizeof(long);
|
|
if (len < 0) {
|
|
return;
|
|
}
|
|
if (*p++ != PCOV_HEADER_MAGIC) {
|
|
TRACE("%s", "wrong magic in xcache_coverager_decode");
|
|
return;
|
|
}
|
|
|
|
for (; len >= sizeof(long) * 2; len -= sizeof(long) * 2, p += 2) {
|
|
add_index_long(return_value, p[0], p[1]);
|
|
}
|
|
}
|
|
/* }}} */
|
|
/* {{{ proto void xcache_coverager_start([bool clean = true])
|
|
* starts coverager data collecting
|
|
*/
|
|
PHP_FUNCTION(xcache_coverager_start)
|
|
{
|
|
zend_bool clean = 1;
|
|
|
|
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|b", &clean) == FAILURE) {
|
|
return;
|
|
}
|
|
|
|
if (clean) {
|
|
xc_coverager_clean(TSRMLS_C);
|
|
}
|
|
|
|
if (XG(coverager)) {
|
|
xc_coverager_enable(TSRMLS_C);
|
|
}
|
|
else {
|
|
php_error(E_WARNING, "You can only start coverager after you set 'xcache.coverager' to 'On' in ini");
|
|
}
|
|
}
|
|
/* }}} */
|
|
/* {{{ proto void xcache_coverager_stop([bool clean = false])
|
|
* stop coverager data collecting
|
|
*/
|
|
PHP_FUNCTION(xcache_coverager_stop)
|
|
{
|
|
zend_bool clean = 0;
|
|
|
|
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|b", &clean) == FAILURE) {
|
|
return;
|
|
}
|
|
|
|
xc_coverager_disable(TSRMLS_C);
|
|
if (clean) {
|
|
xc_coverager_clean(TSRMLS_C);
|
|
}
|
|
}
|
|
/* }}} */
|
|
/* {{{ proto array xcache_coverager_get([bool clean = false])
|
|
* get coverager data collected
|
|
*/
|
|
PHP_FUNCTION(xcache_coverager_get)
|
|
{
|
|
zend_bool clean = 0;
|
|
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|b", &clean) == FAILURE) {
|
|
return;
|
|
}
|
|
|
|
xc_coverager_dump(return_value TSRMLS_CC);
|
|
if (clean) {
|
|
xc_coverager_clean(TSRMLS_C);
|
|
}
|
|
}
|
|
/* }}} */
|