Commit 4629708787

Andrew Kelley <andrew@ziglang.org>
2023-12-16 04:34:42
linker: fix some allocator references
1 parent 48d5861
src/link/Elf/Archive.zig
@@ -20,7 +20,8 @@ pub fn deinit(self: *Archive, allocator: Allocator) void {
 }
 
 pub fn parse(self: *Archive, elf_file: *Elf) !void {
-    const gpa = elf_file.base.allocator;
+    const comp = elf_file.base.comp;
+    const gpa = comp.gpa;
 
     var stream = std.io.fixedBufferStream(self.data);
     const reader = stream.reader();
@@ -150,7 +151,8 @@ pub const ArSymtab = struct {
         const hdr = setArHdr(.{ .name = .symtab, .size = @intCast(ar.size(.p64)) });
         try writer.writeAll(mem.asBytes(&hdr));
 
-        const gpa = elf_file.base.allocator;
+        const comp = elf_file.base.comp;
+        const gpa = comp.gpa;
         var offsets = std.AutoHashMap(File.Index, u64).init(gpa);
         defer offsets.deinit();
         try offsets.ensureUnusedCapacity(@intCast(elf_file.objects.items.len + 1));
src/link/Elf/eh_frame.zig
@@ -233,9 +233,12 @@ pub const Iterator = struct {
 };
 
 pub fn calcEhFrameSize(elf_file: *Elf) !usize {
+    const comp = elf_file.base.comp;
+    const gpa = comp.gpa;
+
     var offset: usize = 0;
 
-    var cies = std.ArrayList(Cie).init(elf_file.base.allocator);
+    var cies = std.ArrayList(Cie).init(gpa);
     defer cies.deinit();
 
     for (elf_file.objects.items) |index| {
@@ -327,7 +330,8 @@ fn resolveReloc(rec: anytype, sym: *const Symbol, rel: elf.Elf64_Rela, elf_file:
 }
 
 pub fn writeEhFrame(elf_file: *Elf, writer: anytype) !void {
-    const gpa = elf_file.base.allocator;
+    const comp = elf_file.base.comp;
+    const gpa = comp.gpa;
 
     relocs_log.debug("{x}: .eh_frame", .{elf_file.shdrs.items[elf_file.eh_frame_section_index.?].sh_addr});
 
@@ -378,7 +382,8 @@ pub fn writeEhFrame(elf_file: *Elf, writer: anytype) !void {
 }
 
 pub fn writeEhFrameObject(elf_file: *Elf, writer: anytype) !void {
-    const gpa = elf_file.base.allocator;
+    const comp = elf_file.base.comp;
+    const gpa = comp.gpa;
 
     for (elf_file.objects.items) |index| {
         const object = elf_file.file(index).?.object;
@@ -467,6 +472,9 @@ pub fn writeEhFrameRelocs(elf_file: *Elf, writer: anytype) !void {
 }
 
 pub fn writeEhFrameHdr(elf_file: *Elf, writer: anytype) !void {
+    const comp = elf_file.base.comp;
+    const gpa = comp.gpa;
+
     try writer.writeByte(1); // version
     try writer.writeByte(EH_PE.pcrel | EH_PE.sdata4);
     try writer.writeByte(EH_PE.udata4);
@@ -495,7 +503,7 @@ pub fn writeEhFrameHdr(elf_file: *Elf, writer: anytype) !void {
         }
     };
 
-    var entries = std.ArrayList(Entry).init(elf_file.base.allocator);
+    var entries = std.ArrayList(Entry).init(gpa);
     defer entries.deinit();
     try entries.ensureTotalCapacityPrecise(num_fdes);
 
src/link/Elf/gc.zig
@@ -1,5 +1,6 @@
 pub fn gcAtoms(elf_file: *Elf) !void {
-    const gpa = elf_file.base.allocator;
+    const comp = elf_file.base.comp;
+    const gpa = comp.gpa;
     const num_files = elf_file.objects.items.len + @intFromBool(elf_file.zig_object_index != null);
     var files = try std.ArrayList(File.Index).initCapacity(gpa, num_files);
     defer files.deinit();
src/link/Elf/LdScript.zig
@@ -14,7 +14,8 @@ pub const Error = error{
 };
 
 pub fn parse(scr: *LdScript, data: []const u8, elf_file: *Elf) Error!void {
-    const gpa = elf_file.base.allocator;
+    const comp = elf_file.base.comp;
+    const gpa = comp.gpa;
     var tokenizer = Tokenizer{ .source = data };
     var tokens = std.ArrayList(Token).init(gpa);
     defer tokens.deinit();
src/link/Elf/LinkerDefined.zig
@@ -12,7 +12,8 @@ pub fn deinit(self: *LinkerDefined, allocator: Allocator) void {
 }
 
 pub fn addGlobal(self: *LinkerDefined, name: [:0]const u8, elf_file: *Elf) !u32 {
-    const gpa = elf_file.base.allocator;
+    const comp = elf_file.base.comp;
+    const gpa = comp.gpa;
     try self.symtab.ensureUnusedCapacity(gpa, 1);
     try self.symbols.ensureUnusedCapacity(gpa, 1);
     const name_off = @as(u32, @intCast(self.strtab.items.len));
src/link/Elf/Object.zig
@@ -66,7 +66,8 @@ pub fn parse(self: *Object, elf_file: *Elf) !void {
 
     if (self.header.?.e_shnum == 0) return;
 
-    const gpa = elf_file.base.allocator;
+    const comp = elf_file.base.comp;
+    const gpa = comp.gpa;
 
     if (self.data.len < self.header.?.e_shoff or
         self.data.len < self.header.?.e_shoff + @as(u64, @intCast(self.header.?.e_shnum)) * @sizeOf(elf.Elf64_Shdr))
@@ -149,8 +150,10 @@ pub fn init(self: *Object, elf_file: *Elf) !void {
 }
 
 fn initAtoms(self: *Object, elf_file: *Elf) !void {
+    const comp = elf_file.base.comp;
+    const gpa = comp.gpa;
     const shdrs = self.shdrs.items;
-    try self.atoms.resize(elf_file.base.allocator, shdrs.len);
+    try self.atoms.resize(gpa, shdrs.len);
     @memset(self.atoms.items, 0);
 
     for (shdrs, 0..) |shdr, i| {
@@ -185,7 +188,6 @@ fn initAtoms(self: *Object, elf_file: *Elf) !void {
                     continue;
                 }
 
-                const gpa = elf_file.base.allocator;
                 const gop = try elf_file.getOrCreateComdatGroupOwner(group_signature);
                 const comdat_group_index = try elf_file.addComdatGroup();
                 const comdat_group = elf_file.comdatGroup(comdat_group_index);
@@ -308,7 +310,8 @@ fn skipShdr(self: *Object, index: u16, elf_file: *Elf) bool {
 }
 
 fn initSymtab(self: *Object, elf_file: *Elf) !void {
-    const gpa = elf_file.base.allocator;
+    const comp = elf_file.base.comp;
+    const gpa = comp.gpa;
     const first_global = self.first_global orelse self.symtab.items.len;
 
     try self.symbols.ensureTotalCapacityPrecise(gpa, self.symtab.items.len);
@@ -340,7 +343,8 @@ fn parseEhFrame(self: *Object, shndx: u16, elf_file: *Elf) !void {
         return;
     };
 
-    const gpa = elf_file.base.allocator;
+    const comp = elf_file.base.comp;
+    const gpa = comp.gpa;
     const raw = self.shdrContents(shndx);
     const relocs = self.getRelocs(relocs_shndx);
     const fdes_start = self.fdes.items.len;
@@ -440,6 +444,8 @@ fn filterRelocs(
 }
 
 pub fn scanRelocs(self: *Object, elf_file: *Elf, undefs: anytype) !void {
+    const comp = elf_file.base.comp;
+    const gpa = comp.gpa;
     for (self.atoms.items) |atom_index| {
         const atom = elf_file.atom(atom_index) orelse continue;
         if (!atom.flags.alive) continue;
@@ -450,7 +456,7 @@ pub fn scanRelocs(self: *Object, elf_file: *Elf, undefs: anytype) !void {
             // TODO ideally, we don't have to decompress at this stage (should already be done)
             // and we just fetch the code slice.
             const code = try self.codeDecompressAlloc(elf_file, atom_index);
-            defer elf_file.base.allocator.free(code);
+            defer gpa.free(code);
             try atom.scanRelocs(elf_file, code, undefs);
         } else try atom.scanRelocs(elf_file, null, undefs);
     }
@@ -623,7 +629,8 @@ pub fn convertCommonSymbols(self: *Object, elf_file: *Elf) !void {
             continue;
         }
 
-        const gpa = elf_file.base.allocator;
+        const comp = elf_file.base.comp;
+        const gpa = comp.gpa;
 
         const atom_index = try elf_file.addAtom();
         try self.atoms.append(gpa, atom_index);
@@ -682,7 +689,8 @@ pub fn addAtomsToOutputSections(self: *Object, elf_file: *Elf) !void {
         const shdr = atom.inputShdr(elf_file);
         atom.output_section_index = self.initOutputSection(elf_file, shdr) catch unreachable;
 
-        const gpa = elf_file.base.allocator;
+        const comp = elf_file.base.comp;
+        const gpa = comp.gpa;
         const gop = try elf_file.output_sections.getOrPut(gpa, atom.output_section_index);
         if (!gop.found_existing) gop.value_ptr.* = .{};
         try gop.value_ptr.append(gpa, atom_index);
@@ -742,7 +750,8 @@ pub fn addAtomsToRelaSections(self: Object, elf_file: *Elf) !void {
         shdr.sh_info = atom.outputShndx().?;
         shdr.sh_link = elf_file.symtab_section_index.?;
 
-        const gpa = elf_file.base.allocator;
+        const comp = elf_file.base.comp;
+        const gpa = comp.gpa;
         const gop = try elf_file.output_rela_sections.getOrPut(gpa, atom.outputShndx().?);
         if (!gop.found_existing) gop.value_ptr.* = .{ .shndx = shndx };
         try gop.value_ptr.atom_list.append(gpa, atom_index);
@@ -750,7 +759,8 @@ pub fn addAtomsToRelaSections(self: Object, elf_file: *Elf) !void {
 }
 
 pub fn updateArSymtab(self: Object, ar_symtab: *Archive.ArSymtab, elf_file: *Elf) !void {
-    const gpa = elf_file.base.allocator;
+    const comp = elf_file.base.comp;
+    const gpa = comp.gpa;
     const start = self.first_global orelse self.symtab.items.len;
 
     try ar_symtab.symtab.ensureUnusedCapacity(gpa, self.symtab.items.len - start);
@@ -857,7 +867,8 @@ pub fn shdrContents(self: Object, index: u32) []const u8 {
 /// Returns atom's code and optionally uncompresses data if required (for compressed sections).
 /// Caller owns the memory.
 pub fn codeDecompressAlloc(self: Object, elf_file: *Elf, atom_index: Atom.Index) ![]u8 {
-    const gpa = elf_file.base.allocator;
+    const comp = elf_file.base.comp;
+    const gpa = comp.gpa;
     const atom_ptr = elf_file.atom(atom_index).?;
     assert(atom_ptr.file_index == self.index);
     const data = self.shdrContents(atom_ptr.input_section_index);
src/link/Elf/SharedObject.zig
@@ -47,7 +47,8 @@ pub fn deinit(self: *SharedObject, allocator: Allocator) void {
 }
 
 pub fn parse(self: *SharedObject, elf_file: *Elf) !void {
-    const gpa = elf_file.base.allocator;
+    const comp = elf_file.base.comp;
+    const gpa = comp.gpa;
     var stream = std.io.fixedBufferStream(self.data);
     const reader = stream.reader();
 
@@ -101,7 +102,8 @@ pub fn parse(self: *SharedObject, elf_file: *Elf) !void {
 }
 
 fn parseVersions(self: *SharedObject, elf_file: *Elf) !void {
-    const gpa = elf_file.base.allocator;
+    const comp = elf_file.base.comp;
+    const gpa = comp.gpa;
     const symtab = self.getSymtabRaw();
 
     try self.verstrings.resize(gpa, 2);
@@ -146,7 +148,8 @@ fn parseVersions(self: *SharedObject, elf_file: *Elf) !void {
 }
 
 pub fn init(self: *SharedObject, elf_file: *Elf) !void {
-    const gpa = elf_file.base.allocator;
+    const comp = elf_file.base.comp;
+    const gpa = comp.gpa;
     const symtab = self.getSymtabRaw();
     const strtab = self.getStrtabRaw();
 
@@ -295,7 +298,8 @@ pub fn initSymbolAliases(self: *SharedObject, elf_file: *Elf) !void {
         }
     };
 
-    const gpa = elf_file.base.allocator;
+    const comp = elf_file.base.comp;
+    const gpa = comp.gpa;
     var aliases = std.ArrayList(Symbol.Index).init(gpa);
     defer aliases.deinit();
     try aliases.ensureTotalCapacityPrecise(self.globals().len);
src/link/Elf/synthetic_sections.zig
@@ -57,7 +57,7 @@ pub const DynamicSection = struct {
         if (elf_file.z_now) {
             flags_1 |= elf.DF_1_NOW;
         }
-        if (elf_file.isExe() and comp.config.pie) {
+        if (elf_file.base.isExe() and comp.config.pie) {
             flags_1 |= elf.DF_1_PIE;
         }
         // if (elf_file.z_nodlopen) {
@@ -89,7 +89,7 @@ pub const DynamicSection = struct {
         if (elf_file.verneed_section_index != null) nentries += 2; // VERNEED
         if (dt.getFlags(elf_file) != null) nentries += 1; // FLAGS
         if (dt.getFlags1(elf_file) != null) nentries += 1; // FLAGS_1
-        if (!elf_file.isDynLib()) nentries += 1; // DEBUG
+        if (!elf_file.base.isDynLib()) nentries += 1; // DEBUG
         nentries += 1; // NULL
         return nentries * @sizeOf(elf.Elf64_Dyn);
     }
@@ -216,7 +216,7 @@ pub const DynamicSection = struct {
         }
 
         // DEBUG
-        if (!elf_file.isDynLib()) try writer.writeStruct(elf.Elf64_Dyn{ .d_tag = elf.DT_DEBUG, .d_val = 0 });
+        if (!elf_file.base.isDynLib()) try writer.writeStruct(elf.Elf64_Dyn{ .d_tag = elf.DT_DEBUG, .d_val = 0 });
 
         // NULL
         try writer.writeStruct(elf.Elf64_Dyn{ .d_tag = elf.DT_NULL, .d_val = 0 });
@@ -256,7 +256,7 @@ pub const ZigGotSection = struct {
         entry.* = sym_index;
         const symbol = elf_file.symbol(sym_index);
         symbol.flags.has_zig_got = true;
-        if (elf_file.isDynLib() or (elf_file.isExe() and comp.config.pie)) {
+        if (elf_file.base.isDynLib() or (elf_file.base.isExe() and comp.config.pie)) {
             zig_got.flags.needs_rela = true;
         }
         if (symbol.extra(elf_file)) |extra| {
@@ -494,7 +494,7 @@ pub const GotSection = struct {
         const symbol = elf_file.symbol(sym_index);
         symbol.flags.has_got = true;
         if (symbol.flags.import or symbol.isIFunc(elf_file) or
-            ((elf_file.isDynLib() or (elf_file.isExe() and comp.config.pie)) and !symbol.isAbs(elf_file)))
+            ((elf_file.base.isDynLib() or (elf_file.base.isExe() and comp.config.pie)) and !symbol.isAbs(elf_file)))
         {
             got.flags.needs_rela = true;
         }
@@ -527,7 +527,7 @@ pub const GotSection = struct {
         entry.symbol_index = sym_index;
         const symbol = elf_file.symbol(sym_index);
         symbol.flags.has_tlsgd = true;
-        if (symbol.flags.import or elf_file.isDynLib()) got.flags.needs_rela = true;
+        if (symbol.flags.import or elf_file.base.isDynLib()) got.flags.needs_rela = true;
         if (symbol.extra(elf_file)) |extra| {
             var new_extra = extra;
             new_extra.tlsgd = index;
@@ -544,7 +544,7 @@ pub const GotSection = struct {
         entry.symbol_index = sym_index;
         const symbol = elf_file.symbol(sym_index);
         symbol.flags.has_gottp = true;
-        if (symbol.flags.import or elf_file.isDynLib()) got.flags.needs_rela = true;
+        if (symbol.flags.import or elf_file.base.isDynLib()) got.flags.needs_rela = true;
         if (symbol.extra(elf_file)) |extra| {
             var new_extra = extra;
             new_extra.gottp = index;
@@ -579,7 +579,7 @@ pub const GotSection = struct {
 
     pub fn write(got: GotSection, elf_file: *Elf, writer: anytype) !void {
         const comp = elf_file.base.comp;
-        const is_dyn_lib = elf_file.isDynLib();
+        const is_dyn_lib = elf_file.base.isDynLib();
         const apply_relocs = true; // TODO add user option for this
 
         for (got.entries.items) |entry| {
@@ -594,7 +594,7 @@ pub const GotSection = struct {
                         if (symbol.?.flags.import) break :blk 0;
                         if (symbol.?.isIFunc(elf_file))
                             break :blk if (apply_relocs) value else 0;
-                        if ((elf_file.isDynLib() or (elf_file.isExe() and comp.config.pie)) and
+                        if ((elf_file.base.isDynLib() or (elf_file.base.isExe() and comp.config.pie)) and
                             !symbol.?.isAbs(elf_file))
                         {
                             break :blk if (apply_relocs) value else 0;
@@ -643,7 +643,7 @@ pub const GotSection = struct {
     pub fn addRela(got: GotSection, elf_file: *Elf) !void {
         const comp = elf_file.base.comp;
         const gpa = comp.gpa;
-        const is_dyn_lib = elf_file.isDynLib();
+        const is_dyn_lib = elf_file.base.isDynLib();
         try elf_file.rela_dyn.ensureUnusedCapacity(gpa, got.numRela(elf_file));
 
         for (got.entries.items) |entry| {
@@ -672,7 +672,7 @@ pub const GotSection = struct {
                         });
                         continue;
                     }
-                    if ((elf_file.isDynLib() or (elf_file.isExe() and comp.config.pie)) and
+                    if ((elf_file.base.isDynLib() or (elf_file.base.isExe() and comp.config.pie)) and
                         !symbol.?.isAbs(elf_file))
                     {
                         elf_file.addRelaDynAssumeCapacity(.{
@@ -746,7 +746,7 @@ pub const GotSection = struct {
 
     pub fn numRela(got: GotSection, elf_file: *Elf) usize {
         const comp = elf_file.base.comp;
-        const is_dyn_lib = elf_file.isDynLib();
+        const is_dyn_lib = elf_file.base.isDynLib();
         var num: usize = 0;
         for (got.entries.items) |entry| {
             const symbol = switch (entry.tag) {
@@ -755,7 +755,7 @@ pub const GotSection = struct {
             };
             switch (entry.tag) {
                 .got => if (symbol.?.flags.import or symbol.?.isIFunc(elf_file) or
-                    ((elf_file.isDynLib() or (elf_file.isExe() and comp.config.pie)) and
+                    ((elf_file.base.isDynLib() or (elf_file.base.isExe() and comp.config.pie)) and
                     !symbol.?.isAbs(elf_file)))
                 {
                     num += 1;