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/*******************************************************************************
* Copyright (c) 2007, 2010 Wind River Systems, Inc. and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Eclipse Distribution License v1.0 which accompany this distribution.
* The Eclipse Public License is available at
* http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Wind River Systems - initial API and implementation
*******************************************************************************/
/*
* TCF service line Numbers - common part.
*
* The service associates locations in the source files with the corresponding
* machine instruction addresses in the executable object.
*/
#include <config.h>
#if SERVICE_LineNumbers
#include <errno.h>
#include <assert.h>
#include <stdio.h>
#include <framework/context.h>
#include <framework/myalloc.h>
#include <framework/exceptions.h>
#include <framework/cache.h>
#include <framework/json.h>
#include <framework/protocol.h>
#include <framework/trace.h>
#include <services/linenumbers.h>
typedef struct MapToSourceArgs {
char token[256];
char id[256];
ContextAddress addr0;
ContextAddress addr1;
} MapToSourceArgs;
typedef struct MapToMemoryArgs {
char token[256];
char id[256];
char * file;
int line;
int column;
} MapToMemoryArgs;
static int code_area_cnt = 0;
static int code_area_max = 0;
static CodeArea * code_area_buf = NULL;
static const char * LINENUMBERS = "LineNumbers";
static void write_line_info(OutputStream * out, int cnt) {
CodeArea * area = code_area_buf + cnt;
CodeArea * prev = cnt == 0 ? NULL : code_area_buf + cnt - 1;
write_stream(out, '{');
json_write_string(out, "SAddr");
write_stream(out, ':');
json_write_uint64(out, area->start_address);
if (area->start_line > 0) {
write_stream(out, ',');
json_write_string(out, "SLine");
write_stream(out, ':');
json_write_ulong(out, area->start_line);
if (area->start_column > 0) {
write_stream(out, ',');
json_write_string(out, "SCol");
write_stream(out, ':');
json_write_ulong(out, area->start_column);
}
}
if (area->end_address != 0) {
write_stream(out, ',');
json_write_string(out, "EAddr");
write_stream(out, ':');
json_write_uint64(out, area->end_address);
}
if (area->end_line > 0) {
write_stream(out, ',');
json_write_string(out, "ELine");
write_stream(out, ':');
json_write_ulong(out, area->end_line);
if (area->end_column > 0) {
write_stream(out, ',');
json_write_string(out, "ECol");
write_stream(out, ':');
json_write_ulong(out, area->end_column);
}
}
if (area->file != NULL && (prev == NULL || prev->file != area->file)) {
write_stream(out, ',');
json_write_string(out, "File");
write_stream(out, ':');
json_write_string(out, area->file);
}
if (area->directory != NULL && (prev == NULL || prev->directory != area->directory)) {
write_stream(out, ',');
json_write_string(out, "Dir");
write_stream(out, ':');
json_write_string(out, area->directory);
}
if (area->isa > 0) {
write_stream(out, ',');
json_write_string(out, "ISA");
write_stream(out, ':');
json_write_ulong(out, area->isa);
}
if (area->is_statement) {
write_stream(out, ',');
json_write_string(out, "IsStmt");
write_stream(out, ':');
json_write_boolean(out, 1);
}
if (area->basic_block) {
write_stream(out, ',');
json_write_string(out, "BasicBlock");
write_stream(out, ':');
json_write_boolean(out, 1);
}
if (area->prologue_end) {
write_stream(out, ',');
json_write_string(out, "PrologueEnd");
write_stream(out, ':');
json_write_boolean(out, 1);
}
if (area->epilogue_begin) {
write_stream(out, ',');
json_write_string(out, "EpilogueBegin");
write_stream(out, ':');
json_write_boolean(out, 1);
}
write_stream(out, '}');
}
static void add_code_area(CodeArea * area, void * args) {
CodeArea * buf = NULL;
if (code_area_cnt >= code_area_max) {
code_area_max += 8;
code_area_buf = (CodeArea *)loc_realloc(code_area_buf, sizeof(CodeArea) * code_area_max);
}
buf = code_area_buf + code_area_cnt++;
memcpy(buf, area, sizeof(CodeArea));
}
static void map_to_source_cache_client(void * x) {
int err = 0;
Context * ctx = NULL;
MapToSourceArgs * args = (MapToSourceArgs *)x;
Channel * c = cache_channel();
ctx = id2ctx(args->id);
if (ctx == NULL) err = ERR_INV_CONTEXT;
else if (ctx->exited) err = ERR_ALREADY_EXITED;
code_area_cnt = 0;
if (err == 0 && address_to_line(ctx, args->addr0, args->addr1, add_code_area, NULL) < 0) err = errno;
cache_exit();
write_stringz(&c->out, "R");
write_stringz(&c->out, args->token);
write_errno(&c->out, err);
if (err != 0) {
write_stringz(&c->out, "null");
}
else {
int cnt = 0;
write_stream(&c->out, '[');
while (cnt < code_area_cnt) {
if (cnt > 0) write_stream(&c->out, ',');
write_line_info(&c->out, cnt);
cnt++;
}
write_stream(&c->out, ']');
write_stream(&c->out, 0);
}
write_stream(&c->out, MARKER_EOM);
}
static void command_map_to_source(char * token, Channel * c) {
MapToSourceArgs args;
json_read_string(&c->inp, args.id, sizeof(args.id));
if (read_stream(&c->inp) != 0) exception(ERR_JSON_SYNTAX);
args.addr0 = (ContextAddress)json_read_uint64(&c->inp);
if (read_stream(&c->inp) != 0) exception(ERR_JSON_SYNTAX);
args.addr1 = (ContextAddress)json_read_uint64(&c->inp);
if (read_stream(&c->inp) != 0) exception(ERR_JSON_SYNTAX);
if (read_stream(&c->inp) != MARKER_EOM) exception(ERR_JSON_SYNTAX);
strlcpy(args.token, token, sizeof(args.token));
cache_enter(map_to_source_cache_client, c, &args, sizeof(args));
}
static void map_to_memory_cache_client(void * x) {
int err = 0;
Context * ctx = NULL;
MapToMemoryArgs * args = (MapToMemoryArgs *)x;
Channel * c = cache_channel();
ctx = id2ctx(args->id);
if (ctx == NULL) err = ERR_INV_CONTEXT;
else if (ctx->exited) err = ERR_ALREADY_EXITED;
code_area_cnt = 0;
if (err == 0 && line_to_address(ctx, args->file,
args->line, args->column, add_code_area, NULL) < 0) err = errno;
cache_exit();
write_stringz(&c->out, "R");
write_stringz(&c->out, args->token);
write_errno(&c->out, err);
if (err != 0) {
write_stringz(&c->out, "null");
}
else {
int cnt = 0;
write_stream(&c->out, '[');
while (cnt < code_area_cnt) {
if (cnt > 0) write_stream(&c->out, ',');
write_line_info(&c->out, cnt);
cnt++;
}
write_stream(&c->out, ']');
write_stream(&c->out, 0);
}
write_stream(&c->out, MARKER_EOM);
loc_free(args->file);
}
static void command_map_to_memory(char * token, Channel * c) {
MapToMemoryArgs args;
json_read_string(&c->inp, args.id, sizeof(args.id));
if (read_stream(&c->inp) != 0) exception(ERR_JSON_SYNTAX);
args.file = json_read_alloc_string(&c->inp);
if (read_stream(&c->inp) != 0) exception(ERR_JSON_SYNTAX);
args.line = json_read_long(&c->inp);
if (read_stream(&c->inp) != 0) exception(ERR_JSON_SYNTAX);
args.column = json_read_long(&c->inp);
if (read_stream(&c->inp) != 0) exception(ERR_JSON_SYNTAX);
if (read_stream(&c->inp) != MARKER_EOM) exception(ERR_JSON_SYNTAX);
strlcpy(args.token, token, sizeof(args.token));
cache_enter(map_to_memory_cache_client, c, &args, sizeof(args));
}
void ini_line_numbers_service(Protocol * proto) {
add_command_handler(proto, LINENUMBERS, "mapToSource", command_map_to_source);
add_command_handler(proto, LINENUMBERS, "mapToMemory", command_map_to_memory);
}
#endif /* SERVICE_LineNumbers */
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