Committed the damned new files

phpdbg_watch.c

@@ -0,0 +1,69 @@
+#include "zend.h"
+#include "phpdbg.h"
+#include "phpdbg_watch.h"
+#include <unistd.h>
+#include <sys/mman.h>
+
+ZEND_EXTERN_MODULE_GLOBALS(phpdbg);
+
+long phpdbg_pagesize;
+
+void phpdbg_setup_watchpoints() {
+#ifdef _SC_PAGE_SIZE
+	phpdbg_pagesize = sysconf(_SC_PAGE_SIZE);
+#endif
+#ifdef _SC_PAGESIZE
+	phpdbg_pagesize = sysconf(_SC_PAGESIZE);
+#endif
+#ifdef _SC_NUTC_OS_PAGESIZE
+	phpdbg_pagesize = sysconf(_SC_NUTC_OS_PAGESIZE);
+#endif
+}
+
+int phpdbg_check_for_watchpoint(void *addr) {
+	return FAILURE;
+}
+
+int phpdbg_watchpoint_segfault_handler(siginfo_t *info, void *context TSRMLS_DC) {
+	printf("Text");
+	return FAILURE;
+}
+
+void phpdbg_create_addr_watchpoint(void *addr, size_t size) {
+	int m;
+
+	/* pagesize is assumed to be in the range of 2^x */
+	m= mprotect((void *)((unsigned long)addr & ~(phpdbg_pagesize - 1)), ((size - 1)  & ~(phpdbg_pagesize - 1)) | phpdbg_pagesize, PROT_NONE | PROT_READ);
+
+	printf("\n!!!!!\n%d\n!!!!!\n", m);
+}
+
+void phpdbg_create_zval_watchpoint(zval *zv) {
+	phpdbg_create_addr_watchpoint(zv, sizeof(zval));
+}
+
+int phpdbg_create_var_watchpoint(char *name, size_t len TSRMLS_DC) {
+	zval *zv;
+
+	if (!EG(active_op_array)) {
+		phpdbg_error("No active op array!");
+		return SUCCESS;
+	}
+
+	if (!EG(active_symbol_table)) {
+		zend_rebuild_symbol_table(TSRMLS_C);
+
+		if (!EG(active_symbol_table)) {
+			phpdbg_error("No active symbol table!");
+			return SUCCESS;
+		}
+	}
+
+	/* Lookup current symbol table */
+	if (zend_hash_find(EG(current_execute_data)->symbol_table, name, len + 1, (void **)&zv) == SUCCESS) {
+		phpdbg_create_zval_watchpoint(zv);
+		return SUCCESS;
+	}
+
+	return FAILURE;
+}

phpdbg_watch.h

@@ -0,0 +1,43 @@
+#ifndef PHPDBG_WATCH_H
+#define PHPDBG_WATCH_H
+
+#include "TSRM.h"
+#include "phpdbg_cmd.h"
+
+#define PHPDBG_WATCH(name) PHPDBG_COMMAND(watch_##name)
+
+/**
+* Printer Forward Declarations
+*/
+/*PHPDBG_WATCH();*/
+
+
+/* Watchpoint functions/typedefs */
+
+typedef enum {
+	WATCH_ON_ZVAL,
+	WATCH_ON_HASHTABLE,
+	WATCH_ON_PTR
+} phpdbg_watchtype;
+
+typedef struct _phpdbg_watchpoint_t phpdbg_watchpoint_t;
+
+struct _phpdbg_watchpoint_t {
+	phpdbg_watchpoint_t *parent;
+	char *str;
+	union {
+		zval *zv;
+		HashTable *ht;
+		void *ptr;
+	} addr;
+	int size;
+	phpdbg_watchtype type;
+};
+
+void phpdbg_setup_watchpoints();
+
+int phpdbg_watchpoint_segfault_handler(siginfo_t *info, void *context TSRMLS_DC);
+
+int phpdbg_create_var_watchpoint(char *name, size_t len TSRMLS_DC);
+
+#endif