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Improved OpenBSD support (#2317)

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* add openbsd support, compiles and passses all tests
* fix backtrace
* gh actions should include openbsd artifacts
This commit is contained in:
LowByteFox
2025-07-22 15:15:20 +02:00
committed by GitHub
parent b45c337515
commit 5c82747970
12 changed files with 298 additions and 9 deletions
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9
lib/std/os/backtrace.c3
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@@ -87,11 +87,12 @@ fn void*[] capture_current(void*[] buffer)
alias BacktraceList = List{Backtrace};
alias symbolize_backtrace @if(env::LINUX) = linux::symbolize_backtrace;
alias symbolize_backtrace @if(env::WIN32) = win32::symbolize_backtrace;
alias symbolize_backtrace @if(env::DARWIN) = darwin::symbolize_backtrace;
alias symbolize_backtrace @if(env::LINUX) = linux::symbolize_backtrace;
alias symbolize_backtrace @if(env::WIN32) = win32::symbolize_backtrace;
alias symbolize_backtrace @if(env::DARWIN) = darwin::symbolize_backtrace;
alias symbolize_backtrace @if(env::OPENBSD) = openbsd::symbolize_backtrace;
fn BacktraceList? symbolize_backtrace(Allocator allocator, void*[] backtrace) @if(!env::NATIVE_STACKTRACE)
{
return {};
}
}

72
lib/std/os/openbsd/general.c3
View File

@@ -1,2 +1,74 @@
module std::os::openbsd @if(env::OPENBSD);
import libc, std::os, std::collections::list;
extern fn ZString* backtrace_symbols_fmt(void **addrlist, usz len, ZString fmt);
fn Backtrace? backtrace_line_parse(Allocator allocator, String obj, String addr2line) @local
{
@stack_mem(256; Allocator mem)
{
String[] parts = addr2line.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.copy(allocator),
.file = source.copy(allocator),
.line = line,
.allocator = allocator,
.is_inline = false,
};
};
}
fn void? backtrace_add_addr2line(Allocator allocator, BacktraceList* list, String obj, String addr2line) @local
{
list.push(backtrace_line_parse(allocator, obj, addr2line)!);
}
fn void? backtrace_add_from_exec(Allocator allocator, BacktraceList* list, String fun, String obj) @local
{
char[1024] buf @noinit;
String addr2line = process::execute_stdout_to_buffer(&buf, {"llvm-addr2line", "-fpe", obj, fun})!;
return backtrace_add_addr2line(allocator, list, obj, addr2line);
}
fn void? backtrace_add_element(Allocator allocator, BacktraceList *list, String fun, String obj) @local
{
return backtrace_add_from_exec(allocator, list, fun, obj);
}
fn BacktraceList? symbolize_backtrace(Allocator allocator, void*[] backtrace)
{
BacktraceList list;
list.init(allocator, backtrace.len);
defer catch
{
foreach (trace : list)
{
trace.free();
}
list.free();
}
ZString *strings = backtrace_symbols_fmt(backtrace.ptr, backtrace.len, "%n%D %f");
for (int i = 0; i < backtrace.len; i++) {
String full = strings[i].str_view();
Splitter iter = full.tokenize(" ");
String fun = iter.next()!;
String obj = iter.next()!;
backtrace_add_element(allocator, &list, fun, obj)!;
}
free(strings);
return list;
}

4
lib/std/os/posix/process.c3
View File

@@ -58,7 +58,9 @@ const CInt WUNTRACES = 2;
JmpBuf backtrace_jmpbuf @local;
alias BacktraceFn = fn CInt(void** buffer, CInt size);
fn CInt backtrace(void** buffer, CInt size)
extern fn CInt backtrace(void** buffer, CInt size) @if(env::OPENBSD);
fn CInt backtrace(void** buffer, CInt size) @if(!env::OPENBSD)
{
if (size < 1) return 0;
void* handle = libc::dlopen("libc.so.6", libc::RTLD_LAZY|libc::RTLD_NODELETE);