zig/lib/std/dwarf.zig
Jacob Young 31220b50b5 Dwarf: cleanup emitted debug info
* reduce iteration cost by not tracking unused entries
 * avoid emitting unused abbrevs to `.debug_abbrev`
 * get the compiler executable passing `llvm-dwarfdump --verify`
 * make it possible to skip `.debug_line` padding much more quickly
2024-08-22 08:44:08 +02:00

185 lines
4.8 KiB
Zig

//! DWARF debugging data format.
//!
//! This namespace contains unopinionated types and data definitions only. For
//! an implementation of parsing and caching DWARF information, see
//! `std.debug.Dwarf`.
pub const TAG = @import("dwarf/TAG.zig");
pub const AT = @import("dwarf/AT.zig");
pub const OP = @import("dwarf/OP.zig");
pub const LANG = @import("dwarf/LANG.zig");
pub const FORM = @import("dwarf/FORM.zig");
pub const ATE = @import("dwarf/ATE.zig");
pub const EH = @import("dwarf/EH.zig");
pub const Format = enum { @"32", @"64" };
pub const LLE = struct {
pub const end_of_list = 0x00;
pub const base_addressx = 0x01;
pub const startx_endx = 0x02;
pub const startx_length = 0x03;
pub const offset_pair = 0x04;
pub const default_location = 0x05;
pub const base_address = 0x06;
pub const start_end = 0x07;
pub const start_length = 0x08;
};
pub const CFA = struct {
pub const advance_loc = 0x40;
pub const offset = 0x80;
pub const restore = 0xc0;
pub const nop = 0x00;
pub const set_loc = 0x01;
pub const advance_loc1 = 0x02;
pub const advance_loc2 = 0x03;
pub const advance_loc4 = 0x04;
pub const offset_extended = 0x05;
pub const restore_extended = 0x06;
pub const @"undefined" = 0x07;
pub const same_value = 0x08;
pub const register = 0x09;
pub const remember_state = 0x0a;
pub const restore_state = 0x0b;
pub const def_cfa = 0x0c;
pub const def_cfa_register = 0x0d;
pub const def_cfa_offset = 0x0e;
// DWARF 3.
pub const def_cfa_expression = 0x0f;
pub const expression = 0x10;
pub const offset_extended_sf = 0x11;
pub const def_cfa_sf = 0x12;
pub const def_cfa_offset_sf = 0x13;
pub const val_offset = 0x14;
pub const val_offset_sf = 0x15;
pub const val_expression = 0x16;
pub const lo_user = 0x1c;
pub const hi_user = 0x3f;
// SGI/MIPS specific.
pub const MIPS_advance_loc8 = 0x1d;
// GNU extensions.
pub const GNU_window_save = 0x2d;
pub const GNU_args_size = 0x2e;
pub const GNU_negative_offset_extended = 0x2f;
};
pub const CHILDREN = struct {
pub const no = 0x00;
pub const yes = 0x01;
};
pub const LNS = struct {
pub const extended_op = 0x00;
pub const copy = 0x01;
pub const advance_pc = 0x02;
pub const advance_line = 0x03;
pub const set_file = 0x04;
pub const set_column = 0x05;
pub const negate_stmt = 0x06;
pub const set_basic_block = 0x07;
pub const const_add_pc = 0x08;
pub const fixed_advance_pc = 0x09;
pub const set_prologue_end = 0x0a;
pub const set_epilogue_begin = 0x0b;
pub const set_isa = 0x0c;
};
pub const LNE = struct {
pub const padding = 0x00;
pub const end_sequence = 0x01;
pub const set_address = 0x02;
pub const define_file = 0x03;
pub const set_discriminator = 0x04;
pub const lo_user = 0x80;
pub const hi_user = 0xff;
// Zig extensions
pub const ZIG_set_decl = 0xec;
};
pub const UT = struct {
pub const compile = 0x01;
pub const @"type" = 0x02;
pub const partial = 0x03;
pub const skeleton = 0x04;
pub const split_compile = 0x05;
pub const split_type = 0x06;
pub const lo_user = 0x80;
pub const hi_user = 0xff;
};
pub const LNCT = struct {
pub const path = 0x1;
pub const directory_index = 0x2;
pub const timestamp = 0x3;
pub const size = 0x4;
pub const MD5 = 0x5;
pub const lo_user = 0x2000;
pub const hi_user = 0x3fff;
pub const LLVM_source = 0x2001;
};
pub const RLE = struct {
pub const end_of_list = 0x00;
pub const base_addressx = 0x01;
pub const startx_endx = 0x02;
pub const startx_length = 0x03;
pub const offset_pair = 0x04;
pub const base_address = 0x05;
pub const start_end = 0x06;
pub const start_length = 0x07;
};
pub const CC = enum(u8) {
normal = 0x1,
program = 0x2,
nocall = 0x3,
pass_by_reference = 0x4,
pass_by_value = 0x5,
GNU_renesas_sh = 0x40,
GNU_borland_fastcall_i386 = 0x41,
BORLAND_safecall = 0xb0,
BORLAND_stdcall = 0xb1,
BORLAND_pascal = 0xb2,
BORLAND_msfastcall = 0xb3,
BORLAND_msreturn = 0xb4,
BORLAND_thiscall = 0xb5,
BORLAND_fastcall = 0xb6,
LLVM_vectorcall = 0xc0,
LLVM_Win64 = 0xc1,
LLVM_X86_64SysV = 0xc2,
LLVM_AAPCS = 0xc3,
LLVM_AAPCS_VFP = 0xc4,
LLVM_IntelOclBicc = 0xc5,
LLVM_SpirFunction = 0xc6,
LLVM_OpenCLKernel = 0xc7,
LLVM_Swift = 0xc8,
LLVM_PreserveMost = 0xc9,
LLVM_PreserveAll = 0xca,
LLVM_X86RegCall = 0xcb,
LLVM_M68kRTD = 0xcc,
LLVM_PreserveNone = 0xcd,
LLVM_RISCVVectorCall = 0xce,
LLVM_SwiftTail = 0xcf,
pub const lo_user = 0x40;
pub const hi_user = 0xff;
};
pub const ACCESS = struct {
pub const public = 0x01;
pub const protected = 0x02;
pub const private = 0x03;
};