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elf: fix calculating current allocated section size when growing alloc sections

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This commit is contained in:
Jakub Konka 2023-09-29 19:06:02 +02:00
parent 04a7051c4b
commit 0524a3c83d
1 changed files with 2 additions and 4 deletions
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6
src/link/Elf.zig
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@ -909,10 +909,7 @@ pub fn growAllocSection(self: *Elf, shdr_index: u16, needed_size: u64) !void {
if (needed_size > self.allocatedSize(shdr.sh_offset) and !is_zerofill) {
// Must move the entire section.
const new_offset = self.findFreeSpace(needed_size, self.page_size);
const existing_size = if (self.last_atom_and_free_list_table.get(shdr_index)) |meta| blk: {
const last = self.atom(meta.last_atom_index) orelse break :blk 0;
break :blk (last.value + last.size) - phdr.p_vaddr;
} else shdr.sh_size;
const existing_size = shdr.sh_size;
shdr.sh_size = 0;
log.debug("new '{s}' file offset 0x{x} to 0x{x}", .{
@ -922,6 +919,7 @@ pub fn growAllocSection(self: *Elf, shdr_index: u16, needed_size: u64) !void {
});
const amt = try self.base.file.?.copyRangeAll(shdr.sh_offset, self.base.file.?, new_offset, existing_size);
// TODO figure out what to about this error condition - how to communicate it up.
if (amt != existing_size) return error.InputOutput;
shdr.sh_offset = new_offset;