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dwarf: actually write zeroed out unresolved relocs into emitted DWARF in initDeclState

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This commit is contained in:
Jakub Konka 2024-03-25 11:06:12 +01:00
parent e599ed4a5f
commit 69e9fe4ede
1 changed files with 4 additions and 4 deletions
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8
src/link/Dwarf.zig
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@ -1133,7 +1133,7 @@ pub fn initDeclState(self: *Dwarf, mod: *Module, decl_index: InternPool.DeclInde
});
// This is the "relocatable" vaddr, corresponding to `code_buffer` index `0`.
assert(dbg_line_vaddr_reloc_index == dbg_line_buffer.items.len);
dbg_line_buffer.items.len += ptr_width_bytes;
dbg_line_buffer.writer().writeByteNTimes(0, ptr_width_bytes) catch unreachable;
dbg_line_buffer.appendAssumeCapacity(DW.LNS.advance_line);
// This is the "relocatable" relative line offset from the previous function's end curly
@ -1171,12 +1171,12 @@ pub fn initDeclState(self: *Dwarf, mod: *Module, decl_index: InternPool.DeclInde
// "relocations" and have to be in this fixed place so that functions can be
// moved in virtual address space.
assert(dbg_info_low_pc_reloc_index == dbg_info_buffer.items.len);
dbg_info_buffer.items.len += ptr_width_bytes; // DW.AT.low_pc, DW.FORM.addr
dbg_info_buffer.writer().writeByteNTimes(0, ptr_width_bytes) catch unreachable; // DW.AT.low_pc, DW.FORM.addr
assert(self.getRelocDbgInfoSubprogramHighPC() == dbg_info_buffer.items.len);
dbg_info_buffer.items.len += 4; // DW.AT.high_pc, DW.FORM.data4
dbg_info_buffer.writer().writeByteNTimes(0, 4) catch unreachable; // DW.AT.high_pc, DW.FORM.data4
if (fn_ret_has_bits) {
try decl_state.addTypeRelocGlobal(di_atom_index, fn_ret_type, @intCast(dbg_info_buffer.items.len));
dbg_info_buffer.items.len += 4; // DW.AT.type, DW.FORM.ref4
dbg_info_buffer.writer().writeByteNTimes(0, 4) catch unreachable; // DW.AT.type, DW.FORM.ref4
}
dbg_info_buffer.appendSliceAssumeCapacity(
decl_name_slice[0 .. decl_name_slice.len + 1],