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Dwarf: fix cross_section_relocs capacity

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This ensure capacity call does not match the number of
appendAssumeCapacity() calls that follow it. Fix this.

This was discovered due to hitting the assertion failure in
appendAssumeCapacity() while building river.

I'm not sure how to isolate a minimal reproducer for a test.
This commit is contained in:
Isaac Freund 2025-02-06 10:44:01 +01:00
parent bf7bc4ff01
commit b3c63e5de0
1 changed files with 1 additions and 1 deletions
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2
src/link/Dwarf.zig
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@ -4576,7 +4576,7 @@ pub fn flushModule(dwarf: *Dwarf, pt: Zcu.PerThread) FlushError!void {
);
for (dwarf.mods.values(), dwarf.debug_line.section.units.items) |mod_info, *unit| {
unit.clear();
try unit.cross_section_relocs.ensureTotalCapacity(dwarf.gpa, 2 * (1 + mod_info.files.count()));
try unit.cross_section_relocs.ensureTotalCapacity(dwarf.gpa, mod_info.dirs.count() + 2 * (mod_info.files.count()));
header.clearRetainingCapacity();
try header.ensureTotalCapacity(unit.header_len);
const unit_len = (if (unit.next.unwrap()) |next_unit|