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macho: migrate eh_frame module

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This commit is contained in:
Jakub Konka 2024-07-09 19:59:43 +02:00
parent b96339f6f6
commit 882ff3ae31
1 changed files with 11 additions and 6 deletions
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17
src/link/MachO/eh_frame.zig
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@ -68,7 +68,8 @@ pub const Cie = struct {
pub fn getPersonality(cie: Cie, macho_file: *MachO) ?*Symbol {
const personality = cie.personality orelse return null;
return macho_file.getSymbol(personality.index);
const object = cie.getObject(macho_file);
return object.getSymbolRef(personality.index, macho_file).getSymbol(macho_file);
}
pub fn eql(cie: Cie, other: Cie, macho_file: *MachO) bool {
@ -223,11 +224,11 @@ pub const Fde = struct {
}
pub fn getAtom(fde: Fde, macho_file: *MachO) *Atom {
return macho_file.getAtom(fde.atom).?;
return fde.getObject(macho_file).getAtom(fde.atom).?;
}
pub fn getLsdaAtom(fde: Fde, macho_file: *MachO) ?*Atom {
return macho_file.getAtom(fde.lsda);
return fde.getObject(macho_file).getAtom(fde.lsda);
}
pub fn format(
@ -448,7 +449,7 @@ pub fn write(macho_file: *MachO, buffer: []u8) void {
}
}
pub fn writeRelocs(macho_file: *MachO, code: []u8, relocs: *std.ArrayList(macho.relocation_info)) error{Overflow}!void {
pub fn writeRelocs(macho_file: *MachO, code: []u8, relocs: []macho.relocation_info) error{Overflow}!void {
const tracy = trace(@src());
defer tracy.end();
@ -459,6 +460,7 @@ pub fn writeRelocs(macho_file: *MachO, code: []u8, relocs: *std.ArrayList(macho.
else => 0,
};
var i: usize = 0;
for (macho_file.objects.items) |index| {
const object = macho_file.getFile(index).?.object;
for (object.cies.items) |cie| {
@ -469,7 +471,7 @@ pub fn writeRelocs(macho_file: *MachO, code: []u8, relocs: *std.ArrayList(macho.
if (cie.getPersonality(macho_file)) |sym| {
const r_address = math.cast(i32, cie.out_offset + cie.personality.?.offset) orelse return error.Overflow;
const r_symbolnum = math.cast(u24, sym.getOutputSymtabIndex(macho_file).?) orelse return error.Overflow;
relocs.appendAssumeCapacity(.{
relocs[i] = .{
.r_address = r_address,
.r_symbolnum = r_symbolnum,
.r_length = 2,
@ -480,7 +482,8 @@ pub fn writeRelocs(macho_file: *MachO, code: []u8, relocs: *std.ArrayList(macho.
.x86_64 => @intFromEnum(macho.reloc_type_x86_64.X86_64_RELOC_GOT),
else => unreachable,
},
});
};
i += 1;
}
}
}
@ -531,6 +534,8 @@ pub fn writeRelocs(macho_file: *MachO, code: []u8, relocs: *std.ArrayList(macho.
}
}
}
assert(relocs.len == i);
}
pub const EH_PE = struct {