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Read debugger config at startup

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Read .xsys4-debugrc from ~/.xsystem4 and/or the game directory on
startup. This is just a text file with one debugger command per line.
Can be used to set breakpoints or log functions automatically at
startup.

This can also be used to work around a limitation on Windows where the
IME doesn't work in the debugger, making it impossible to input Japanese
text.
This commit is contained in:
Nunuhara Cabbage
2022-04-14 10:54:00 -07:00
parent 9ede2d7af9
commit 21cb503c06
6 changed files with 76 additions and 25 deletions
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src/debugger_cmd.c
+56 -20
View File
@@ -21,8 +21,11 @@
#include <string.h>
#include <setjmp.h>
#include <ctype.h>
#include <limits.h>
#include <assert.h>
#include "system4.h"
#include "system4/file.h"
#include "system4/string.h"
#include "system4/utfsjis.h"
@@ -271,30 +274,63 @@ static char **cmd_parse(char *line, unsigned *nr_words)
return words;
}
static void execute_line(char *line)
{
unsigned nr_words;
char **words = cmd_parse(line, &nr_words);
if (!nr_words)
return;
struct dbg_cmd *cmd = dbg_get_command(words[0]);
if (!cmd) {
printf("Invalid command: %s (type 'help' for a list of commands)\n", words[0]);
return;
}
if ((nr_words-1) < cmd->min_args || (nr_words-1) > cmd->max_args) {
printf("Wrong number of arguments to '%s' command\n", cmd->fullname);
return;
}
cmd->run(nr_words-1, words+1);
}
void dbg_cmd_repl(void)
{
puts("Entering the debugger REPL. Type 'help' for a list of commands.");
while (1) {
char *line = cmd_gets();
if (!line)
continue;
unsigned nr_words;
char **words = cmd_parse(line, &nr_words);
if (!nr_words)
continue;
struct dbg_cmd *cmd = dbg_get_command(words[0]);
if (!cmd) {
printf("Invalid command: %s (type 'help' for a list of commands)\n", words[0]);
continue;
}
if ((nr_words-1) < cmd->min_args || (nr_words-1) > cmd->max_args) {
printf("Wrong number of arguments to '%s' command\n", cmd->fullname);
continue;
}
cmd->run(nr_words-1, words+1);
if (line)
execute_line(line);
}
}
static void execute_config(void *_f)
{
FILE *f = _f;
char line[1024];
while (fgets(line, 1024, f)) {
execute_line(line);
}
}
static void read_config(const char *path)
{
FILE *f = file_open_utf8(path, "rb");
if (!f)
return;
dbg_start(execute_config, f);
fclose(f);
}
void dbg_cmd_init(void)
{
char *path = xmalloc(PATH_MAX);
snprintf(path, PATH_MAX, "%s/.xsys4-debugrc", config.home_dir);
read_config(path);
free(path);
path = gamedir_path(".xsys4-debugrc");
read_config(path);
free(path);
}