mirror/zig
1
0
Fork 0
mirror of https://github.com/ziglang/zig.git synced 2026-02-13 04:48:20 +00:00
Code Issues Packages Projects Releases Wiki Activity

unsure

Browse Source
This commit is contained in:
LemonBoy 2020-02-21 12:11:04 +01:00
parent a4d0d7f1de
commit 8df4d7e4f4
1 changed files with 46 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

75
lib/std/debug.zig
View File

@ -740,41 +740,22 @@ fn printSourceAtAddressMacOs(debug_info: *DebugInfo, out_stream: var, address: u
}
pub fn printSourceAtAddressPosix(debug_info: *DebugInfo, out_stream: var, address: usize, tty_config: TTY.Config) !void {
var symbol_name: []const u8 = "";
var compile_unit_name: []const u8 = "";
var line_info: ?LineInfo = null;
if (debug_info.lookupByAddress(address)) |module| {
// Translate the VA into an address into this object
const relocated_address = address - module.base_address;
if (module.dwarf.findCompileUnit(relocated_address)) |compile_unit| {
symbol_name = module.dwarf.getSymbolName(relocated_address) orelse "???";
compile_unit_name = compile_unit.die.getAttrString(&module.dwarf, DW.AT_name) catch |err| switch (err) {
error.MissingDebugInfo, error.InvalidDebugInfo => "???",
else => return err,
};
line_info = module.dwarf.getLineNumberInfo(compile_unit.*, relocated_address) catch |err| switch (err) {
error.MissingDebugInfo, error.InvalidDebugInfo => null,
else => return err,
};
} else |err| switch (err) {
error.MissingDebugInfo, error.InvalidDebugInfo => {},
else => return err,
}
} else |err| switch (err) {
error.MissingDebugInfo, error.InvalidDebugInfo => {},
const module = debug_info.lookupByAddress(address) catch |err| switch (err) {
error.MissingDebugInfo, error.InvalidDebugInfo => {
return printLineInfo(out_stream, null, address, "???", "???", tty_config, printLineFromFileAnyOs);
},
else => return err,
}
};
defer if (line_info) |li| li.deinit();
const info = try module.getSymbolAtAddress(address);
defer if (info.line_info) |li| li.deinit();
return printLineInfo(
out_stream,
line_info,
info.line_info,
address,
symbol_name,
compile_unit_name,
info.symbol_name,
info.compile_unit_name,
tty_config,
printLineFromFileAnyOs,
);
@ -1445,6 +1426,12 @@ pub const DebugInfo = struct {
}
};
const SymbolInfo = struct {
symbol_name: []const u8,
compile_unit_name: []const u8,
line_info: ?LineInfo,
};
pub const ObjectDebugInfo = switch (builtin.os) {
.macosx, .ios, .watchos, .tvos => struct {
base_address: usize,
@ -1475,6 +1462,36 @@ pub const ObjectDebugInfo = switch (builtin.os) {
base_address: usize,
dwarf: DW.DwarfInfo,
mapped_memory: []const u8,
fn getSymbolAtAddress(self: *@This(), address: usize) !SymbolInfo {
// Translate the VA into an address into this object
const relocated_address = address - self.base_address;
if (self.dwarf.findCompileUnit(relocated_address)) |compile_unit| {
return SymbolInfo{
.symbol_name = self.dwarf.getSymbolName(relocated_address) orelse "???",
.compile_unit_name = compile_unit.die.getAttrString(&self.dwarf, DW.AT_name) catch |err| switch (err) {
error.MissingDebugInfo, error.InvalidDebugInfo => "???",
else => return err,
},
.line_info = self.dwarf.getLineNumberInfo(compile_unit.*, relocated_address) catch |err| switch (err) {
error.MissingDebugInfo, error.InvalidDebugInfo => null,
else => return err,
},
};
} else |err| switch (err) {
error.MissingDebugInfo, error.InvalidDebugInfo => {
return SymbolInfo{
.symbol_name = "???",
.compile_unit_name = "???",
.line_info = null,
};
},
else => return err,
}
unreachable;
}
},
else => DW.DwarfInfo,
};