| ... | ... | @@ -857,6 +857,17 @@ pub fn growAllocSection(self: *Elf, shdr_index: u16, needed_size: u64) !void { |
| 857 | 857 | // TODO mark relocs dirty |
| 858 | 858 | } |
| 859 | 859 | try self.growSegment(shdr_index, needed_size); |
| 860 | |
| 861 | if (self.zig_module_index != null) { |
| 862 | // TODO self-hosted backends cannot yet handle this condition correctly as the linker |
| 863 | // cannot update emitted virtual addresses of symbols already committed to the final file. |
| 864 | var err = try self.addErrorWithNotes(2); |
| 865 | try err.addMsg(self, "fatal linker error: cannot expand load segment phdr({d}) in virtual memory", .{ |
| 866 | phdr_index, |
| 867 | }); |
| 868 | try err.addNote(self, "TODO: emit relocations to memory locations in self-hosted backends", .{}); |
| 869 | try err.addNote(self, "as a workaround, try increasing pre-allocated virtual memory of each segment", .{}); |
| 870 | } |
| 860 | 871 | } |
| 861 | 872 | |
| 862 | 873 | shdr.sh_size = needed_size; |
| ... | ... | @@ -3972,6 +3983,46 @@ pub fn comdatGroupOwner(self: *Elf, index: ComdatGroupOwner.Index) *ComdatGroupO |
| 3972 | 3983 | return &self.comdat_groups_owners.items[index]; |
| 3973 | 3984 | } |
| 3974 | 3985 | |
| 3986 | const ErrorWithNotes = struct { |
| 3987 | /// Allocated index in misc_errors array. |
| 3988 | index: usize, |
| 3989 | |
| 3990 | /// Next available note slot. |
| 3991 | note_slot: usize = 0, |
| 3992 | |
| 3993 | pub fn addMsg( |
| 3994 | err: ErrorWithNotes, |
| 3995 | elf_file: *Elf, |
| 3996 | comptime format: []const u8, |
| 3997 | args: anytype, |
| 3998 | ) error{OutOfMemory}!void { |
| 3999 | const gpa = elf_file.base.allocator; |
| 4000 | const err_msg = &elf_file.misc_errors.items[err.index]; |
| 4001 | err_msg.msg = try std.fmt.allocPrint(gpa, format, args); |
| 4002 | } |
| 4003 | |
| 4004 | pub fn addNote( |
| 4005 | err: *ErrorWithNotes, |
| 4006 | elf_file: *Elf, |
| 4007 | comptime format: []const u8, |
| 4008 | args: anytype, |
| 4009 | ) error{OutOfMemory}!void { |
| 4010 | const gpa = elf_file.base.allocator; |
| 4011 | const err_msg = &elf_file.misc_errors.items[err.index]; |
| 4012 | assert(err.note_slot < err_msg.notes.len); |
| 4013 | err_msg.notes[err.note_slot] = .{ .msg = try std.fmt.allocPrint(gpa, format, args) }; |
| 4014 | err.note_slot += 1; |
| 4015 | } |
| 4016 | }; |
| 4017 | |
| 4018 | fn addErrorWithNotes(self: *Elf, note_count: usize) error{OutOfMemory}!ErrorWithNotes { |
| 4019 | const gpa = self.base.allocator; |
| 4020 | const index = self.misc_errors.items.len; |
| 4021 | const err = try self.misc_errors.addOne(gpa); |
| 4022 | err.* = .{ .msg = undefined, .notes = try gpa.alloc(link.File.ErrorMsg, note_count) }; |
| 4023 | return .{ .index = index }; |
| 4024 | } |
| 4025 | |
| 3975 | 4026 | fn reportUndefined(self: *Elf, undefs: anytype) !void { |
| 3976 | 4027 | const gpa = self.base.allocator; |
| 3977 | 4028 | const max_notes = 4; |
Jakub Konka <kubkon@jakubkonka.com> 2023-09-27 15:07:05+02:00
src