From 41e3f4f0c395d512efc71e437864dbedac901a23 Mon Sep 17 00:00:00 2001
From: Andi Gutmans <andi@php.net>
Date: Fri, 26 Jul 2002 10:38:25 +0000
Subject: [PATCH] - Fix problem with debug_backtrace() reported by Stig. We
 weren't reporting - global function information because it wasn't available.
 We have to do - an additional assignment per-function call so that it'll be
 available. - Also don't define the global scope as function name _main_ but
 leave it - empty so that frameworks like Pear can decide what they want to
 do.

---
 Zend/zend.c                   |  9 +-------
 Zend/zend_builtin_functions.c | 42 +++++++++++++----------------------
 Zend/zend_compile.h           |  1 +
 Zend/zend_execute.c           |  1 +
 4 files changed, 18 insertions(+), 35 deletions(-)

diff --git a/Zend/zend.c b/Zend/zend.c
index a3d8d07069..8871ce00e8 100644
--- a/Zend/zend.c
+++ b/Zend/zend.c
@@ -813,13 +813,7 @@ ZEND_API int zend_execute_scripts(int type TSRMLS_DC, zval **retval, int file_co
 	zend_file_handle *file_handle;
 	zend_op_array *orig_op_array = EG(active_op_array);
 	zval *local_retval=NULL;
-	zend_execute_data execute_data;
-
-	EX(prev_execute_data) = NULL;
-	EG(current_execute_data) = &execute_data;
-	EX(object) = NULL;
-	EX(opline) = NULL;
-
+	
 	va_start(files, file_count);
 	for (i=0; i<file_count; i++) {
 		file_handle = va_arg(files, zend_file_handle *);
@@ -829,7 +823,6 @@ ZEND_API int zend_execute_scripts(int type TSRMLS_DC, zval **retval, int file_co
 		EG(active_op_array) = zend_compile_file(file_handle, ZEND_INCLUDE TSRMLS_CC);
 		zend_destroy_file_handle(file_handle TSRMLS_CC);
 		if (EG(active_op_array)) {
-			EX(function_state).function = (zend_function *) EG(active_op_array);
 			EG(return_value_ptr_ptr) = retval ? retval : &local_retval;
 			zend_execute(EG(active_op_array) TSRMLS_CC);
 			if (EG(exception)) {
diff --git a/Zend/zend_builtin_functions.c b/Zend/zend_builtin_functions.c
index 946bf008f2..b826c54991 100644
--- a/Zend/zend_builtin_functions.c
+++ b/Zend/zend_builtin_functions.c
@@ -1201,10 +1201,11 @@ ZEND_FUNCTION(debug_backtrace)
 	char *class_name;
 	zend_uint class_name_length;
 	zval *stack_frame;
-	zend_bool first_time = 1;
 
 	ptr = EG(current_execute_data);
-	lineno = ptr->opline->lineno;
+
+	/* Skip debug_backtrace() itself */
+	ptr = ptr->prev_execute_data;
 	
 	array_init(return_value);
 
@@ -1222,35 +1223,22 @@ ZEND_FUNCTION(debug_backtrace)
 			class_name = ptr->function_state.function->common.scope->name;
 		}
 		function_name = ptr->function_state.function->common.function_name;
-		if (!function_name) {
-			function_name = "_main_";
-		}
-
-		ptr = ptr->prev_execute_data;
-		if (!ptr) {
-			zval_ptr_dtor(&stack_frame);
-			break;
-		}
-
-		filename = ptr->function_state.function->op_array.filename;
+		
+		filename = ptr->op_array->filename;
+		lineno = ptr->opline->lineno;
 
-		if (!first_time) { /* Skip the first context which is debug_backtrace() itself */
+		if (function_name) {
 			add_assoc_string_ex(stack_frame, "function", sizeof("function"), function_name, 1);
-			if (class_name) {
-				add_assoc_string_ex(stack_frame, "class", sizeof("class"), class_name, 1);
-			}
-			add_assoc_string_ex(stack_frame, "file", sizeof("file"), filename, 1);
-			add_assoc_long_ex(stack_frame, "line", sizeof("line"), lineno);
-			/* add_assoc_stringl_ex(stack_frame, "class", sizeof("class")-1, class_name, class_name_length, 1); */
-			
-			add_next_index_zval(return_value, stack_frame);
-		} else {
-			first_time = 0;
 		}
-
-		if (ptr->opline) {
-			lineno = ptr->opline->lineno;
+		if (class_name) {
+			add_assoc_string_ex(stack_frame, "class", sizeof("class"), class_name, 1);
 		}
+		add_assoc_string_ex(stack_frame, "file", sizeof("file"), filename, 1);
+		add_assoc_long_ex(stack_frame, "line", sizeof("line"), lineno);
+		/* add_assoc_stringl_ex(stack_frame, "class", sizeof("class")-1, class_name, class_name_length, 1); */
+		add_next_index_zval(return_value, stack_frame);
+
+		ptr = ptr->prev_execute_data;
 	}
 }
 /* }}} */
diff --git a/Zend/zend_compile.h b/Zend/zend_compile.h
index b51d576ff1..cb007bf779 100644
--- a/Zend/zend_compile.h
+++ b/Zend/zend_compile.h
@@ -188,6 +188,7 @@ typedef struct _zend_execute_data {
 	zend_function_state function_state;
 	zend_function *fbc; /* Function Being Called */
 	zend_function *fbc_constructor;
+	zend_op_array *op_array;
 	zval *object;
 	union _temp_variable *Ts;
 	zend_bool original_in_execution;
diff --git a/Zend/zend_execute.c b/Zend/zend_execute.c
index fca3ff2a36..af50e25725 100644
--- a/Zend/zend_execute.c
+++ b/Zend/zend_execute.c
@@ -1110,6 +1110,7 @@ ZEND_API void execute(zend_op_array *op_array TSRMLS_DC)
 	EX(fbc) = NULL;
 	EX(object) = NULL;
 	EX(Ts) = (temp_variable *) do_alloca(sizeof(temp_variable)*op_array->T);
+	EX(op_array) = op_array;
 	EX(original_in_execution) = EG(in_execution);
 	EX(prev_execute_data) = EG(current_execute_data);
 	EG(current_execute_data) = &execute_data;
-- 
2.50.1