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This commit is contained in:
Rui Ueyama 2020-11-09 21:50:47 +09:00
parent 646e8e3cab
commit 4a88abad76
1 changed files with 20 additions and 0 deletions
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20
main.cc
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@ -397,6 +397,20 @@ static void write_merged_strings(u8 *buf, ArrayRef<ObjectFile *> files) {
});
}
static void clear_padding(u8 *buf, ArrayRef<OutputChunk *> output_chunks,
u64 filesize) {
auto zero = [&](OutputChunk *chunk, u64 next_start) {
if (chunk->shdr.sh_type != SHT_NOBITS) {
u64 pos = chunk->shdr.sh_offset + chunk->shdr.sh_size;
memset(buf + pos, 0, next_start - pos);
}
};
for (int i = 1; i < output_chunks.size(); i++)
zero(output_chunks[i - 1], output_chunks[i]->shdr.sh_offset);
zero(output_chunks.back(), filesize);
}
// We want to sort output sections in the following order.
//
// alloc readonly data
@ -982,6 +996,12 @@ int main(int argc, char **argv) {
write_merged_strings(buf, files);
}
// Zero-clear paddings between sections
{
MyTimer t("clear_padding", copy);
clear_padding(buf, output_chunks, filesize);
}
// Commit
{
MyTimer t("commit", copy);