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更好的panic+kdbg

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Leonmmcoset
2026-04-17 19:17:03 +08:00
parent bf6720c6e8
commit 5817722cd3
11 changed files with 935 additions and 13 deletions
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73
clks/kernel/panic.c
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@@ -229,14 +229,19 @@ static clks_bool clks_panic_parse_symbol_line(const char *line,
usize len,
u64 *out_addr,
const char **out_name,
usize *out_name_len) {
usize *out_name_len,
const char **out_source,
usize *out_source_len) {
usize i = 0U;
u64 addr = 0ULL;
u32 digits = 0U;
usize name_start;
usize name_end;
usize source_start;
usize source_end;
if (line == CLKS_NULL || out_addr == CLKS_NULL || out_name == CLKS_NULL || out_name_len == CLKS_NULL) {
if (line == CLKS_NULL || out_addr == CLKS_NULL || out_name == CLKS_NULL || out_name_len == CLKS_NULL ||
out_source == CLKS_NULL || out_source_len == CLKS_NULL) {
return CLKS_FALSE;
}
@@ -267,20 +272,34 @@ static clks_bool clks_panic_parse_symbol_line(const char *line,
}
name_start = i;
name_end = len;
while (name_end > name_start &&
(line[name_end - 1U] == ' ' || line[name_end - 1U] == '\t' || line[name_end - 1U] == '\r')) {
name_end--;
while (i < len && line[i] != ' ' && line[i] != '\t' && line[i] != '\r') {
i++;
}
name_end = i;
if (name_end <= name_start) {
return CLKS_FALSE;
}
while (i < len && (line[i] == ' ' || line[i] == '\t')) {
i++;
}
source_start = i;
source_end = len;
while (source_end > source_start &&
(line[source_end - 1U] == ' ' || line[source_end - 1U] == '\t' || line[source_end - 1U] == '\r')) {
source_end--;
}
*out_addr = addr;
*out_name = &line[name_start];
*out_name_len = name_end - name_start;
*out_source = (source_end > source_start) ? &line[source_start] : CLKS_NULL;
*out_source_len = (source_end > source_start) ? (source_end - source_start) : 0U;
return CLKS_TRUE;
}
@@ -309,22 +328,32 @@ static clks_bool clks_panic_symbols_ready(void) {
return CLKS_TRUE;
}
static clks_bool clks_panic_lookup_symbol(u64 addr, const char **out_name, usize *out_name_len, u64 *out_base) {
static clks_bool clks_panic_lookup_symbol(u64 addr,
const char **out_name,
usize *out_name_len,
u64 *out_base,
const char **out_source,
usize *out_source_len) {
const char *data;
const char *end;
const char *line;
const char *best_name = CLKS_NULL;
const char *best_source = CLKS_NULL;
usize best_len = 0U;
usize best_source_len = 0U;
u64 best_addr = 0ULL;
clks_bool found = CLKS_FALSE;
if (out_name == CLKS_NULL || out_name_len == CLKS_NULL || out_base == CLKS_NULL) {
if (out_name == CLKS_NULL || out_name_len == CLKS_NULL || out_base == CLKS_NULL || out_source == CLKS_NULL ||
out_source_len == CLKS_NULL) {
return CLKS_FALSE;
}
*out_name = CLKS_NULL;
*out_name_len = 0U;
*out_base = 0ULL;
*out_source = CLKS_NULL;
*out_source_len = 0U;
if (clks_panic_symbols_ready() == CLKS_FALSE) {
return CLKS_FALSE;
@@ -337,6 +366,8 @@ static clks_bool clks_panic_lookup_symbol(u64 addr, const char **out_name, usize
u64 line_addr;
const char *line_name;
usize line_name_len;
const char *line_source;
usize line_source_len;
usize line_len = 0U;
line = data;
@@ -350,7 +381,13 @@ static clks_bool clks_panic_lookup_symbol(u64 addr, const char **out_name, usize
data++;
}
if (clks_panic_parse_symbol_line(line, line_len, &line_addr, &line_name, &line_name_len) == CLKS_FALSE) {
if (clks_panic_parse_symbol_line(line,
line_len,
&line_addr,
&line_name,
&line_name_len,
&line_source,
&line_source_len) == CLKS_FALSE) {
continue;
}
@@ -358,6 +395,8 @@ static clks_bool clks_panic_lookup_symbol(u64 addr, const char **out_name, usize
best_addr = line_addr;
best_name = line_name;
best_len = line_name_len;
best_source = line_source;
best_source_len = line_source_len;
found = CLKS_TRUE;
}
}
@@ -369,6 +408,8 @@ static clks_bool clks_panic_lookup_symbol(u64 addr, const char **out_name, usize
*out_name = best_name;
*out_name_len = best_len;
*out_base = best_addr;
*out_source = best_source;
*out_source_len = best_source_len;
return CLKS_TRUE;
}
@@ -376,13 +417,15 @@ static void clks_panic_emit_bt_entry(struct clks_panic_console *console, u32 ind
char index_dec[12];
char rip_hex[19];
const char *sym_name = CLKS_NULL;
const char *sym_source = CLKS_NULL;
usize sym_name_len = 0U;
usize sym_source_len = 0U;
u64 sym_base = 0ULL;
clks_bool has_symbol;
clks_panic_u32_to_dec(index, index_dec, sizeof(index_dec));
clks_panic_u64_to_hex(rip, rip_hex);
has_symbol = clks_panic_lookup_symbol(rip, &sym_name, &sym_name_len, &sym_base);
has_symbol = clks_panic_lookup_symbol(rip, &sym_name, &sym_name_len, &sym_base, &sym_source, &sym_source_len);
clks_serial_write("[PANIC][BT] #");
clks_serial_write(index_dec);
@@ -398,6 +441,11 @@ static void clks_panic_emit_bt_entry(struct clks_panic_console *console, u32 ind
clks_panic_serial_write_n(sym_name, sym_name_len);
clks_serial_write("+");
clks_serial_write(off_hex);
if (sym_source != CLKS_NULL && sym_source_len > 0U) {
clks_serial_write(" @ ");
clks_panic_serial_write_n(sym_source, sym_source_len);
}
}
clks_serial_write("\n");
@@ -420,6 +468,11 @@ static void clks_panic_emit_bt_entry(struct clks_panic_console *console, u32 ind
clks_panic_console_write_n(console, sym_name, sym_name_len);
clks_panic_console_write(console, "+");
clks_panic_console_write(console, off_hex);
if (sym_source != CLKS_NULL && sym_source_len > 0U) {
clks_panic_console_write(console, " @ ");
clks_panic_console_write_n(console, sym_source, sym_source_len);
}
}
clks_panic_console_write(console, "\n");