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macho: remove stale code

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This commit is contained in:
Jakub Konka 2024-07-20 06:29:24 +02:00
parent 617f89f082
commit 5d9fd5bcde
1 changed files with 0 additions and 81 deletions
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81
src/link/MachO.zig
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@ -1285,53 +1285,6 @@ fn markLive(self: *MachO) void {
if (self.getInternalObject()) |obj| obj.markLive(self);
}
fn resolveSyntheticSymbols(self: *MachO) !void {
const internal = self.getInternalObject() orelse return;
if (!self.base.isDynLib()) {
self.mh_execute_header_index = try internal.addSymbol("__mh_execute_header", self);
const sym = self.getSymbol(self.mh_execute_header_index.?);
sym.flags.@"export" = true;
sym.flags.dyn_ref = true;
sym.visibility = .global;
} else {
self.mh_dylib_header_index = try internal.addSymbol("__mh_dylib_header", self);
}
self.dso_handle_index = try internal.addSymbol("___dso_handle", self);
self.dyld_private_index = try internal.addSymbol("dyld_private", self);
{
const gpa = self.base.comp.gpa;
var boundary_symbols = std.AutoHashMap(Symbol.Index, void).init(gpa);
defer boundary_symbols.deinit();
for (self.objects.items) |index| {
const object = self.getFile(index).?.object;
for (object.symbols.items, 0..) |sym_index, i| {
const nlist = object.symtab.items(.nlist)[i];
const name = self.getSymbol(sym_index).getName(self);
if (!nlist.undf() or !nlist.ext()) continue;
if (mem.startsWith(u8, name, "segment$start$") or
mem.startsWith(u8, name, "segment$stop$") or
mem.startsWith(u8, name, "section$start$") or
mem.startsWith(u8, name, "section$stop$"))
{
_ = try boundary_symbols.put(sym_index, {});
}
}
}
try self.boundary_symbols.ensureTotalCapacityPrecise(gpa, boundary_symbols.count());
var it = boundary_symbols.iterator();
while (it.next()) |entry| {
_ = try internal.addSymbol(self.getSymbol(entry.key_ptr.*).getName(self), self);
self.boundary_symbols.appendAssumeCapacity(entry.key_ptr.*);
}
}
}
fn convertTentativeDefsAndResolveSpecialSymbols(self: *MachO) !void {
for (self.objects.items) |index| {
try self.getFile(index).?.object.convertTentativeDefinitions(self);
@ -1342,40 +1295,6 @@ fn convertTentativeDefsAndResolveSpecialSymbols(self: *MachO) !void {
}
}
fn createObjcSections(self: *MachO) !void {
const gpa = self.base.comp.gpa;
var objc_msgsend_syms = std.AutoArrayHashMap(Symbol.Index, void).init(gpa);
defer objc_msgsend_syms.deinit();
for (self.objects.items) |index| {
const object = self.getFile(index).?.object;
for (object.symbols.items, 0..) |sym_index, i| {
const nlist_idx = @as(Symbol.Index, @intCast(i));
const nlist = object.symtab.items(.nlist)[nlist_idx];
if (!nlist.ext()) continue;
if (!nlist.undf()) continue;
const sym = self.getSymbol(sym_index);
if (sym.getFile(self) != null) continue;
if (mem.startsWith(u8, sym.getName(self), "_objc_msgSend$")) {
_ = try objc_msgsend_syms.put(sym_index, {});
}
}
}
for (objc_msgsend_syms.keys()) |sym_index| {
const internal = self.getInternalObject().?;
const sym = self.getSymbol(sym_index);
_ = try internal.addSymbol(sym.getName(self), self);
sym.visibility = .hidden;
const name = eatPrefix(sym.getName(self), "_objc_msgSend$").?;
const selrefs_index = try internal.addObjcMsgsendSections(name, self);
try sym.addExtra(.{ .objc_selrefs = selrefs_index }, self);
sym.flags.objc_stubs = true;
}
}
pub fn dedupLiterals(self: *MachO) !void {
const tracy = trace(@src());
defer tracy.end();