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macho: set alignment of pre-allocated sections

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This commit is contained in:
Jakub Konka 2024-01-18 14:36:52 +01:00
parent a6ed54ea22
commit 55c8b82b50
1 changed files with 15 additions and 6 deletions
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21
src/link/MachO.zig
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@ -3222,29 +3222,36 @@ fn initMetadata(self: *MachO, options: InitMetadataOptions) !void {
}
}.appendSect;
if (self.zig_text_section_index == null) {
{
self.zig_text_section_index = try self.addSection("__TEXT_ZIG", "__text_zig", .{
.alignment = switch (self.getTarget().cpu.arch) {
.aarch64 => 2,
.x86_64 => 0,
else => unreachable,
},
.flags = macho.S_REGULAR | macho.S_ATTR_PURE_INSTRUCTIONS | macho.S_ATTR_SOME_INSTRUCTIONS,
});
appendSect(self, self.zig_text_section_index.?, self.zig_text_seg_index.?);
}
if (self.zig_got_section_index == null and !self.base.isRelocatable()) {
self.zig_got_section_index = try self.addSection("__GOT_ZIG", "__got_zig", .{});
if (!self.base.isRelocatable()) {
self.zig_got_section_index = try self.addSection("__GOT_ZIG", "__got_zig", .{
.alignment = 3,
});
appendSect(self, self.zig_got_section_index.?, self.zig_got_seg_index.?);
}
if (self.zig_const_section_index == null) {
{
self.zig_const_section_index = try self.addSection("__CONST_ZIG", "__const_zig", .{});
appendSect(self, self.zig_const_section_index.?, self.zig_const_seg_index.?);
}
if (self.zig_data_section_index == null) {
{
self.zig_data_section_index = try self.addSection("__DATA_ZIG", "__data_zig", .{});
appendSect(self, self.zig_data_section_index.?, self.zig_data_seg_index.?);
}
if (self.zig_bss_section_index == null) {
{
self.zig_bss_section_index = try self.addSection("__BSS_ZIG", "__bss_zig", .{
.flags = macho.S_ZEROFILL,
});
@ -3328,6 +3335,7 @@ pub fn addSegment(self: *MachO, name: []const u8, opts: struct {
}
const AddSectionOpts = struct {
alignment: u32 = 0,
flags: u32 = macho.S_REGULAR,
reserved1: u32 = 0,
reserved2: u32 = 0,
@ -3346,6 +3354,7 @@ pub fn addSection(
.header = .{
.sectname = makeStaticString(sectname),
.segname = makeStaticString(segname),
.@"align" = opts.alignment,
.flags = opts.flags,
.reserved1 = opts.reserved1,
.reserved2 = opts.reserved2,