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macho: set __DATA_CONST* segments flags to SG_READ_ONLY

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This commit is contained in:
Jakub Konka 2024-01-24 12:48:22 +01:00
parent 5226705b32
commit 0fd0b765fa
1 changed files with 3 additions and 1 deletions
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4
src/link/MachO.zig
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@ -2243,7 +2243,8 @@ fn initSegments(self: *MachO) !void {
for (slice.items(.header)) |header| {
const segname = header.segName();
if (self.getSegmentByName(segname) == null) {
_ = try self.addSegment(segname, .{ .prot = getSegmentProt(segname) });
const flags: u32 = if (mem.startsWith(u8, segname, "__DATA_CONST")) macho.SG_READ_ONLY else 0;
_ = try self.addSegment(segname, .{ .prot = getSegmentProt(segname), .flags = flags });
}
}
@ -3543,6 +3544,7 @@ pub fn addSegment(self: *MachO, name: []const u8, opts: struct {
fileoff: u64 = 0,
filesize: u64 = 0,
prot: macho.vm_prot_t = macho.PROT.NONE,
flags: u32 = 0,
}) error{OutOfMemory}!u8 {
const gpa = self.base.comp.gpa;
const index = @as(u8, @intCast(self.segments.items.len));