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Debugger: Support FUNC debug information

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It is used to print function names in backtrace.
This commit is contained in:
kichikuou
2021-07-24 17:27:10 +09:00
parent 5283a0aa5d
commit 21e43b5cc7
3 changed files with 61 additions and 6 deletions
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src/debugger.c
+11 -6
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@@ -53,17 +53,22 @@ static Breakpoint *internal_breakpoint;
static const char whitespaces[] = " \t\r\n";
static const char *format_address(int page, int addr, boolean is_return_addr) {
static char buf[120];
static char buf[100];
const char *src = dsym_page2src(symbols, page);
// For return addresses, search with (addr - 1) so that the function call's
// line number will be printed.
int line = dsym_addr2line(symbols, page, is_return_addr ? addr - 1 : addr);
const char *func = dsym_addr2func(symbols, page, is_return_addr ? addr - 1 : addr);
if (src && line > 0)
sprintf(buf, "%.100s:%d", src, line); // TODO: print function name
else
sprintf(buf, "%d:0x%x", page, addr);
if (src && line > 0) {
if (func)
snprintf(buf, sizeof(buf), "%s:%d in %s", src, line, func);
else
snprintf(buf, sizeof(buf), "%s:%d", src, line);
} else {
snprintf(buf, sizeof(buf), "%d:0x%x", page, addr);
}
return buf;
}
@@ -364,7 +369,7 @@ void dbg_repl(void) {
}
char buf[256];
while (printf("dbg> "), fgets(buf, sizeof(buf), stdin)) {
while (printf("dbg> "), fflush(stdout), fgets(buf, sizeof(buf), stdin)) {
char *cmd = strtok(buf, whitespaces);
if (!cmd) {
// TODO: repeat last command