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121 lines
4.5 KiB
Plaintext
121 lines
4.5 KiB
Plaintext
module std::os::openbsd @if(env::OPENBSD);
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import libc, std::os, std::collections::list;
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// Native `sysctl` identifiers from <sys/sysctl.h>
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const CTL_UNSPEC = 0; /* unused */
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const CTL_KERN = 1; /* "high kernel": proc, limits */
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const CTL_VM = 2; /* virtual memory */
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const CTL_FS = 3; /* file system, mount type is next */
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const CTL_NET = 4; /* network, see socket.h */
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const CTL_DEBUG = 5; /* debugging parameters */
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const CTL_HW = 6; /* generic cpu/io */
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const CTL_MACHDEP = 7; /* machine dependent */
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const CTL_GAP_UNUSED = 8; /* was CTL_USER: removed 2013-04 */
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const CTL_DDB = 9; /* DDB user interface, see db_var.h */
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const CTL_VFS = 10; /* VFS sysctl's */
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const CTL_MAXID = 11; /* number of valid top-level ids */
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const HW_MACHINE = 1; /* string: machine class */
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const HW_MODEL = 2; /* string: specific machine model */
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const HW_NCPU = 3; /* int: number of configured cpus */
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const HW_BYTEORDER = 4; /* int: machine byte order */
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const HW_PHYSMEM = 5; /* int: total memory */
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const HW_USERMEM = 6; /* int: non-kernel memory */
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const HW_PAGESIZE = 7; /* int: software page size */
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const HW_DISKNAMES = 8; /* strings: disk drive names */
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const HW_DISKSTATS = 9; /* struct: diskstats[] */
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const HW_DISKCOUNT = 10; /* int: number of disks */
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const HW_SENSORS = 11; /* node: hardware monitors */
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const HW_CPUSPEED = 12; /* get CPU frequency */
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const HW_SETPERF = 13; /* set CPU performance % */
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const HW_VENDOR = 14; /* string: vendor name */
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const HW_PRODUCT = 15; /* string: product name */
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const HW_VERSION = 16; /* string: hardware version */
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const HW_SERIALNO = 17; /* string: hardware serial number */
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const HW_UUID = 18; /* string: universal unique id */
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const HW_PHYSMEM64 = 19; /* quad: total memory */
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const HW_USERMEM64 = 20; /* quad: non-kernel memory */
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const HW_NCPUFOUND = 21; /* int: number of cpus found */
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const HW_ALLOWPOWERDOWN = 22; /* allow power button shutdown */
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const HW_PERFPOLICY = 23; /* set performance policy */
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const HW_SMT = 24; /* int: enable SMT/HT/CMT */
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const HW_NCPUONLINE = 25; /* int: number of cpus being used */
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const HW_POWER = 26; /* int: machine has wall-power */
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const HW_BATTERY = 27; /* node: battery */
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const HW_UCOMNAMES = 28; /* strings: ucom names */
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const HW_MAXID = 29; /* number of valid hw ids */
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extern fn ZString* backtrace_symbols_fmt(void **addrlist, usz len, ZString fmt);
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fn Backtrace? backtrace_line_parse(Allocator allocator, String obj, String addr2line) @local
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{
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@stack_mem(256; Allocator mem)
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{
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String[] parts = addr2line.trim().split(mem, " at ");
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if (parts.len != 2) return NOT_FOUND~;
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uint line = 0;
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String source = "";
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if (!parts[1].contains("?") && parts[1].contains(":"))
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{
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usz index = parts[1].rindex_of_char(':')!;
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source = parts[1][:index];
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line = parts[1][index + 1..].to_uint()!;
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}
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return {
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.function = parts[0].copy(allocator),
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.object_file = obj.copy(allocator),
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.file = source.copy(allocator),
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.line = line,
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.allocator = allocator,
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.is_inline = false,
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};
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};
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}
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fn void? backtrace_add_addr2line(Allocator allocator, BacktraceList* list, String obj, String addr2line) @local
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{
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list.push(backtrace_line_parse(allocator, obj, addr2line)!);
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}
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fn void? backtrace_add_from_exec(Allocator allocator, BacktraceList* list, String fun, String obj) @local
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{
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char[1024] buf @noinit;
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String addr2line = process::execute_stdout_to_buffer(&buf, {"llvm-addr2line", "-fpe", obj, fun})!;
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return backtrace_add_addr2line(allocator, list, obj, addr2line);
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}
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fn void? backtrace_add_element(Allocator allocator, BacktraceList *list, String fun, String obj) @local
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{
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return backtrace_add_from_exec(allocator, list, fun, obj);
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}
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fn BacktraceList? symbolize_backtrace(Allocator allocator, void*[] backtrace)
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{
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BacktraceList list;
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list.init(allocator, backtrace.len);
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defer catch
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{
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foreach (trace : list)
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{
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trace.free();
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}
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list.free();
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}
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ZString *strings = backtrace_symbols_fmt(backtrace.ptr, backtrace.len, "%n%D %f");
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for (int i = 0; i < backtrace.len; i++) {
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String full = strings[i].str_view();
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Splitter iter = full.tokenize(" ");
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String fun = iter.next()!;
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String obj = iter.next()!;
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backtrace_add_element(allocator, &list, fun, obj)!;
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}
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free(strings);
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return list;
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}
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