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Removed the use of temp allocator in backtrace printing.

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Added string::bformat.
This commit is contained in:
Christoffer Lerno
2025-07-13 02:38:45 +02:00
committed by Christoffer Lerno
parent 6c7dc2a28e
commit e755c36ea2
13 changed files with 272 additions and 150 deletions
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110
lib/std/os/linux/linux.c3
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@@ -130,70 +130,76 @@ fn ulong? elf_module_image_base(String path) @local
fn void? backtrace_add_from_exec(Allocator allocator, BacktraceList* list, void* addr) @local
{
char[] buf = mem::talloc_array(char, 1024);
String exec_path = process::execute_stdout_to_buffer(buf, {"realpath", "-e", string::tformat("/proc/%d/exe", posix::getpid())})!;
char[1024] buf @noinit;
String exec_path = process::execute_stdout_to_buffer(&buf, {"realpath", "-e", string::bformat(&&(char[64]){}, "/proc/%d/exe", posix::getpid())})!;
String obj_name = exec_path.copy(allocator);
String addr2line = process::execute_stdout_to_buffer(buf, {"addr2line", "-p", "-i", "-C", "-f", "-e", exec_path, string::tformat("0x%x", addr)})!;
String addr2line = process::execute_stdout_to_buffer(&buf, {"addr2line", "-p", "-i", "-C", "-f", "-e", exec_path, string::bformat(&&(char[64]){}, "0x%x", addr)})!;
return backtrace_add_addr2line(allocator, list, addr, addr2line, obj_name, "???");
}
fn void? backtrace_add_from_dlinfo(Allocator allocator, BacktraceList* list, void* addr, Linux_Dl_info* info) @local
{
char[] buf = mem::talloc_array(char, 1024);
char[1024] buf @noinit;
void* obj_addr = addr - (uptr)info.dli_fbase + (uptr)elf_module_image_base(info.dli_fname.str_view())!;
ZString obj_path = info.dli_fname;
String sname = info.dli_sname ? info.dli_sname.str_view() : "???";
String addr2line = process::execute_stdout_to_buffer(buf, {"addr2line", "-p", "-i", "-C", "-f", "-e", obj_path.str_view(), string::tformat("0x%x", obj_addr - 1)})!;
String addr2line = process::execute_stdout_to_buffer(&buf, {"addr2line", "-p", "-i", "-C", "-f", "-e", obj_path.str_view(), string::bformat(&&(char[64]){}, "0x%x", obj_addr - 1)})!;
return backtrace_add_addr2line(allocator, list, addr, addr2line, info.dli_fname.str_view(), sname);
}
fn Backtrace? backtrace_line_parse(Allocator allocator, String string, String obj_name, String func_name, bool is_inlined)
{
String[] parts = string.trim().tsplit(" at ");
if (parts.len != 2) return NOT_FOUND?;
uint line = 0;
String source = "";
if (!parts[1].contains("?") && parts[1].contains(":"))
@stack_mem(256; Allocator mem)
{
usz index = parts[1].rindex_of_char(':')!;
source = parts[1][:index];
line = parts[1][index + 1..].to_uint()!;
}
return {
.function = parts[0].copy(allocator),
.object_file = obj_name.copy(allocator),
.file = source.copy(allocator),
.line = line,
.allocator = allocator,
.is_inline = is_inlined
String[] parts = string.trim().split(mem, " at ");
if (parts.len != 2) return NOT_FOUND?;
uint line = 0;
String source = "";
if (!parts[1].contains("?") && parts[1].contains(":"))
{
usz index = parts[1].rindex_of_char(':')!;
source = parts[1][:index];
line = parts[1][index + 1..].to_uint()!;
}
return {
.function = parts[0].copy(allocator),
.object_file = obj_name.copy(allocator),
.file = source.copy(allocator),
.line = line,
.allocator = allocator,
.is_inline = is_inlined
};
};
}
fn void? backtrace_add_addr2line(Allocator allocator, BacktraceList* list, void* addr, String addr2line, String obj_name, String func_name) @local
{
String[] inline_parts = addr2line.tsplit("(inlined by)");
usz last = inline_parts.len - 1;
foreach (i, part : inline_parts)
@stack_mem(1024; Allocator mem)
{
bool is_inline = i != last;
Backtrace? trace = backtrace_line_parse(allocator, part, obj_name, func_name, is_inline);
if (catch trace)
String[] inline_parts = addr2line.split(mem, "(inlined by)");
usz last = inline_parts.len - 1;
foreach (i, part : inline_parts)
{
list.push({
.function = func_name.copy(allocator),
.object_file = obj_name.copy(allocator),
.offset = (uptr)addr,
.file = "".copy(allocator),
.line = 0,
.allocator = allocator,
.is_inline = is_inline
});
continue;
bool is_inline = i != last;
Backtrace? trace = backtrace_line_parse(allocator, part, obj_name, func_name, is_inline);
if (catch trace)
{
list.push({
.function = func_name.copy(allocator),
.object_file = obj_name.copy(allocator),
.offset = (uptr)addr,
.file = "".copy(allocator),
.line = 0,
.allocator = allocator,
.is_inline = is_inline
});
continue;
}
list.push(trace);
}
list.push(trace);
}
};
}
fn void? backtrace_add_element(Allocator allocator, BacktraceList *list, void* addr) @local
@@ -204,15 +210,12 @@ fn void? backtrace_add_element(Allocator allocator, BacktraceList *list, void* a
return;
}
@pool()
Linux_Dl_info info;
if (dladdr(addr, &info) == 0)
{
Linux_Dl_info info;
if (dladdr(addr, &info) == 0)
{
return backtrace_add_from_exec(allocator, list, addr);
}
return backtrace_add_from_dlinfo(allocator, list, addr, &info);
};
return backtrace_add_from_exec(allocator, list, addr);
}
return backtrace_add_from_dlinfo(allocator, list, addr, &info);
}
fn BacktraceList? symbolize_backtrace(Allocator allocator, void*[] backtrace)
@@ -227,12 +230,9 @@ fn BacktraceList? symbolize_backtrace(Allocator allocator, void*[] backtrace)
}
list.free();
}
@pool()
foreach (addr : backtrace)
{
foreach (addr : backtrace)
{
backtrace_add_element(allocator, &list, addr)!;
}
};
backtrace_add_element(allocator, &list, addr)!;
}
return list;
}