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Initial version of JerryScript debugger (#1557)

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The debugger supports setting breakpoints, execution control (step, next, continue)
and getting backtrace. The communication is WebSocket-based, so a browser can
communicate with JerryScript without any intermediate application.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
JerryScript-DCO-1.0-Signed-off-by: Levente Orban orbanl@inf.u-szeged.hu
This commit is contained in:
Levente Orban
2017-02-14 15:03:01 +01:00
committed by Tilmann Scheller
parent 453066fcf1
commit 025a99ccbb
39 changed files with 4166 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
jerry-core/parser/js/js-parser-statm.c
+70
View File
@@ -17,6 +17,10 @@
#ifdef JERRY_JS_PARSER
#ifdef JERRY_DEBUGGER
#include "jcontext.h"
#endif /*JERRY_DEBUGGER */
/** \addtogroup parser Parser
* @{
*
@@ -310,6 +314,10 @@ parser_parse_var_statement (parser_context_t *context_p) /**< context */
JERRY_ASSERT (context_p->token.type == LEXER_LITERAL
&& context_p->token.lit_location.type == LEXER_IDENT_LITERAL);
#ifdef JERRY_DEBUGGER
parser_line_counter_t ident_line_counter = context_p->line;
#endif /* JERRY_DEBUGGER */
context_p->lit_object.literal_p->status_flags |= LEXER_FLAG_VAR;
parser_emit_cbc_literal_from_token (context_p, CBC_PUSH_LITERAL);
@@ -318,6 +326,30 @@ parser_parse_var_statement (parser_context_t *context_p) /**< context */
if (context_p->token.type == LEXER_ASSIGN)
{
#ifdef JERRY_DEBUGGER
if (JERRY_CONTEXT (jerry_init_flags) & JERRY_INIT_DEBUGGER)
{
if (ident_line_counter != context_p->last_breakpoint_line)
{
JERRY_DEBUG_MSG ("Insert var breakpoint: %d (%d)\n", ident_line_counter, context_p->last_breakpoint_line);
JERRY_ASSERT (context_p->last_cbc_opcode == CBC_PUSH_LITERAL);
cbc_argument_t last_cbc = context_p->last_cbc;
context_p->last_cbc_opcode = PARSER_CBC_UNAVAILABLE;
parser_emit_cbc (context_p, CBC_BREAKPOINT_DISABLED);
parser_flush_cbc (context_p);
parser_append_breakpoint_info (context_p, JERRY_DEBUGGER_BREAKPOINT_LIST, ident_line_counter);
context_p->last_cbc_opcode = CBC_PUSH_LITERAL;
context_p->last_cbc = last_cbc;
context_p->last_breakpoint_line = ident_line_counter;
}
}
#endif /* JERRY_DEBUGGER */
parser_parse_expression (context_p,
PARSE_EXPR_STATEMENT | PARSE_EXPR_NO_COMMA | PARSE_EXPR_HAS_LITERAL);
}
@@ -369,6 +401,14 @@ parser_parse_function_statement (parser_context_t *context_p) /**< context */
status_flags |= PARSER_HAS_NON_STRICT_ARG;
}
#ifdef JERRY_DEBUGGER
if (JERRY_CONTEXT (jerry_init_flags) & JERRY_INIT_DEBUGGER)
{
jerry_debugger_send_function_name ((jerry_char_t *) name_p->u.char_p,
name_p->prop.length);
}
#endif /* JERRY_DEBUGGER */
if (name_p->status_flags & LEXER_FLAG_INITIALIZED)
{
if (!(name_p->status_flags & (LEXER_FLAG_FUNCTION_NAME | LEXER_FLAG_FUNCTION_ARGUMENT)))
@@ -1567,6 +1607,14 @@ parser_parse_statements (parser_context_t *context_p) /**< context */
parser_stack_push_uint8 (context_p, PARSER_STATEMENT_START);
parser_stack_iterator_init (context_p, &context_p->last_statement);
#ifdef JERRY_DEBUGGER
/* Set lexical enviroment for the debugger. */
if (JERRY_CONTEXT (jerry_init_flags) & JERRY_INIT_DEBUGGER)
{
context_p->status_flags |= PARSER_LEXICAL_ENV_NEEDED;
}
#endif /* JERRY_DEBUGGER */
while (context_p->token.type == LEXER_LITERAL
&& context_p->token.lit_location.type == LEXER_STRING_LITERAL)
{
@@ -1654,6 +1702,28 @@ parser_parse_statements (parser_context_t *context_p) /**< context */
JERRY_ASSERT (context_p->stack_depth == context_p->context_stack_depth);
#endif /* !JERRY_NDEBUG */
#ifdef JERRY_DEBUGGER
if (JERRY_CONTEXT (jerry_init_flags) & JERRY_INIT_DEBUGGER)
{
if (context_p->line != context_p->last_breakpoint_line
&& context_p->token.type != LEXER_SEMICOLON
&& context_p->token.type != LEXER_LEFT_BRACE
&& context_p->token.type != LEXER_RIGHT_BRACE
&& context_p->token.type != LEXER_KEYW_VAR
&& context_p->token.type != LEXER_KEYW_FUNCTION
&& context_p->token.type != LEXER_KEYW_CASE
&& context_p->token.type != LEXER_KEYW_DEFAULT)
{
parser_emit_cbc (context_p, CBC_BREAKPOINT_DISABLED);
parser_flush_cbc (context_p);
parser_append_breakpoint_info (context_p, JERRY_DEBUGGER_BREAKPOINT_LIST, context_p->line);
context_p->last_breakpoint_line = context_p->line;
}
}
#endif /* JERRY_DEBUGGER */
switch (context_p->token.type)
{
case LEXER_SEMICOLON: