From bc82e0f3d3aed55165902c37271af120fcd4f858 Mon Sep 17 00:00:00 2001 From: LemonBoy Date: Tue, 21 Jan 2020 20:51:57 +0100 Subject: Refactor some code in the debug output --- lib/std/debug.zig | 235 ++++++++++++++++++------------------------------------ 1 file changed, 77 insertions(+), 158 deletions(-) (limited to 'lib/std/debug.zig') diff --git a/lib/std/debug.zig b/lib/std/debug.zig index dfdaca6d3f..51fb384d75 100644 --- a/lib/std/debug.zig +++ b/lib/std/debug.zig @@ -379,16 +379,7 @@ fn printSourceAtAddressWindows(di: *DebugInfo, out_stream: var, relocated_addres } } else { // we have no information to add to the address - if (tty_color) { - try out_stream.print("???:?:?: ", .{}); - setTtyColor(TtyColor.Dim); - try out_stream.print("0x{x} in ??? (???)", .{relocated_address}); - setTtyColor(TtyColor.Reset); - try out_stream.print("\n\n\n", .{}); - } else { - try out_stream.print("???:?:?: 0x{x} in ??? (???)\n\n\n", .{relocated_address}); - } - return; + return printLineInfo(out_stream, null, relocated_address, "???", "???", tty_color, printLineFromFileAnyOs); }; const mod = &di.modules[mod_index]; @@ -510,66 +501,15 @@ fn printSourceAtAddressWindows(di: *DebugInfo, out_stream: var, relocated_addres } }; - if (tty_color) { - setTtyColor(TtyColor.White); - if (opt_line_info) |li| { - try out_stream.print("{}:{}:{}", .{ li.file_name, li.line, li.column }); - } else { - try out_stream.print("???:?:?", .{}); - } - setTtyColor(TtyColor.Reset); - try out_stream.print(": ", .{}); - setTtyColor(TtyColor.Dim); - try out_stream.print("0x{x} in {} ({})", .{ relocated_address, symbol_name, obj_basename }); - setTtyColor(TtyColor.Reset); - - if (opt_line_info) |line_info| { - try out_stream.print("\n", .{}); - if (printLineFromFileAnyOs(out_stream, line_info)) { - if (line_info.column == 0) { - try out_stream.write("\n"); - } else { - { - var col_i: usize = 1; - while (col_i < line_info.column) : (col_i += 1) { - try out_stream.writeByte(' '); - } - } - setTtyColor(TtyColor.Green); - try out_stream.write("^"); - setTtyColor(TtyColor.Reset); - try out_stream.write("\n"); - } - } else |err| switch (err) { - error.EndOfFile => {}, - error.FileNotFound => { - setTtyColor(TtyColor.Dim); - try out_stream.write("file not found\n\n"); - setTtyColor(TtyColor.White); - }, - else => return err, - } - } else { - try out_stream.print("\n\n\n", .{}); - } - } else { - if (opt_line_info) |li| { - try out_stream.print("{}:{}:{}: 0x{x} in {} ({})\n\n\n", .{ - li.file_name, - li.line, - li.column, - relocated_address, - symbol_name, - obj_basename, - }); - } else { - try out_stream.print("???:?:?: 0x{x} in {} ({})\n\n\n", .{ - relocated_address, - symbol_name, - obj_basename, - }); - } - } + try printLineInfo( + out_stream, + opt_line_info, + relocated_address, + symbol_name, + obj_basename, + tty_color, + printLineFromFileAnyOs, + ); } const TtyColor = enum { @@ -605,7 +545,11 @@ fn setTtyColor(tty_color: TtyColor) void { stderr_file.write(RESET) catch return; }, } - } else { + + return; + } + + if (builtin.os == .windows) { const S = struct { var attrs: windows.WORD = undefined; var init_attrs = false; @@ -711,12 +655,7 @@ fn printSourceAtAddressMacOs(di: *DebugInfo, out_stream: var, address: usize, tt const adjusted_addr = 0x100000000 + (address - base_addr); const symbol = machoSearchSymbols(di.symbols, adjusted_addr) orelse { - if (tty_color) { - try out_stream.print("???:?:?: " ++ DIM ++ "0x{x} in ??? (???)" ++ RESET ++ "\n\n\n", .{address}); - } else { - try out_stream.print("???:?:?: 0x{x} in ??? (???)\n\n\n", .{address}); - } - return; + return printLineInfo(out_stream, null, address, "???", "???", tty_color, printLineFromFileAnyOs); }; const symbol_name = mem.toSliceConst(u8, @ptrCast([*:0]const u8, di.strings.ptr + symbol.nlist.n_strx)); @@ -724,29 +663,22 @@ fn printSourceAtAddressMacOs(di: *DebugInfo, out_stream: var, address: usize, tt const ofile_path = mem.toSliceConst(u8, @ptrCast([*:0]const u8, di.strings.ptr + ofile.n_strx)); break :blk fs.path.basename(ofile_path); } else "???"; - if (getLineNumberInfoMacOs(di, symbol.*, adjusted_addr)) |line_info| { - defer line_info.deinit(); - try printLineInfo( - out_stream, - line_info, - address, - symbol_name, - compile_unit_name, - tty_color, - printLineFromFileAnyOs, - ); - } else |err| switch (err) { - error.MissingDebugInfo, error.InvalidDebugInfo => { - if (tty_color) { - try out_stream.print("???:?:?: " ++ DIM ++ "0x{x} in {} ({})" ++ RESET ++ "\n\n\n", .{ - address, symbol_name, compile_unit_name, - }); - } else { - try out_stream.print("???:?:?: 0x{x} in {} ({})\n\n\n", .{ address, symbol_name, compile_unit_name }); - } - }, + + const line_info = getLineNumberInfoMacOs(di, symbol.*, adjusted_addr) catch |err| switch (err) { + error.MissingDebugInfo, error.InvalidDebugInfo => null, else => return err, - } + }; + defer if (line_info) |li| li.deinit(); + + try printLineInfo( + out_stream, + line_info, + address, + symbol_name, + compile_unit_name, + tty_color, + printLineFromFileAnyOs, + ); } pub fn printSourceAtAddressPosix(debug_info: *DebugInfo, out_stream: var, address: usize, tty_color: bool) !void { @@ -755,47 +687,46 @@ pub fn printSourceAtAddressPosix(debug_info: *DebugInfo, out_stream: var, addres fn printLineInfo( out_stream: var, - line_info: LineInfo, + line_info: ?LineInfo, address: usize, symbol_name: []const u8, compile_unit_name: []const u8, tty_color: bool, comptime printLineFromFile: var, ) !void { - if (tty_color) { - try out_stream.print(WHITE ++ "{}:{}:{}" ++ RESET ++ ": " ++ DIM ++ "0x{x} in {} ({})" ++ RESET ++ "\n", .{ - line_info.file_name, - line_info.line, - line_info.column, - address, - symbol_name, - compile_unit_name, - }); - if (printLineFromFile(out_stream, line_info)) { - if (line_info.column == 0) { - try out_stream.write("\n"); - } else { - { - var col_i: usize = 1; - while (col_i < line_info.column) : (col_i += 1) { - try out_stream.writeByte(' '); - } - } - try out_stream.write(GREEN ++ "^" ++ RESET ++ "\n"); + if (tty_color) setTtyColor(.White); + + if (line_info) |*li| { + try out_stream.print("{}:{}:{}", .{ li.file_name, li.line, li.column }); + } else { + try out_stream.print("???:?:?", .{}); + } + + if (tty_color) setTtyColor(.Reset); + try out_stream.write(": "); + if (tty_color) setTtyColor(.Dim); + try out_stream.print("0x{x} in {} ({})", .{ address, symbol_name, compile_unit_name }); + if (tty_color) setTtyColor(.Reset); + try out_stream.write("\n"); + + // Show the matching source code line if possible + if (line_info) |li| { + if (printLineFromFile(out_stream, li)) { + if (li.column > 0) { + // The caret already takes one char + const space_needed = @intCast(usize, li.column - 1); + + try out_stream.writeByteNTimes(' ', space_needed); + if (tty_color) setTtyColor(.Green); + try out_stream.write("^"); + if (tty_color) setTtyColor(.Reset); } + try out_stream.write("\n"); } else |err| switch (err) { error.EndOfFile, error.FileNotFound => {}, + error.BadPathName => {}, else => return err, } - } else { - try out_stream.print("{}:{}:{}: 0x{x} in {} ({})\n", .{ - line_info.file_name, - line_info.line, - line_info.column, - address, - symbol_name, - compile_unit_name, - }); } } @@ -1240,38 +1171,26 @@ pub const DwarfInfo = struct { comptime printLineFromFile: var, ) !void { const compile_unit = self.findCompileUnit(address) catch { - if (tty_color) { - try out_stream.print("???:?:?: " ++ DIM ++ "0x{x} in ??? (???)" ++ RESET ++ "\n\n\n", .{address}); - } else { - try out_stream.print("???:?:?: 0x{x} in ??? (???)\n\n\n", .{address}); - } - return; + return printLineInfo(out_stream, null, address, "???", "???", tty_color, printLineFromFile); }; + const compile_unit_name = try compile_unit.die.getAttrString(self, DW.AT_name); - if (self.getLineNumberInfo(compile_unit.*, address)) |line_info| { - defer line_info.deinit(); - const symbol_name = self.getSymbolName(address) orelse "???"; - try printLineInfo( - out_stream, - line_info, - address, - symbol_name, - compile_unit_name, - tty_color, - printLineFromFile, - ); - } else |err| switch (err) { - error.MissingDebugInfo, error.InvalidDebugInfo => { - if (tty_color) { - try out_stream.print("???:?:?: " ++ DIM ++ "0x{x} in ??? ({})" ++ RESET ++ "\n\n\n", .{ - address, compile_unit_name, - }); - } else { - try out_stream.print("???:?:?: 0x{x} in ??? ({})\n\n\n", .{ address, compile_unit_name }); - } - }, + const symbol_name = self.getSymbolName(address) orelse "???"; + const line_info = self.getLineNumberInfo(compile_unit.*, address) catch |err| switch (err) { + error.MissingDebugInfo, error.InvalidDebugInfo => null, else => return err, - } + }; + defer if (line_info) |li| li.deinit(); + + try printLineInfo( + out_stream, + line_info, + address, + symbol_name, + compile_unit_name, + tty_color, + printLineFromFile, + ); } fn getSymbolName(di: *DwarfInfo, address: u64) ?[]const u8 { -- cgit v1.2.3