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Remove disk space check #30

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Remove disk space check #30

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6172862
Remove disk space check
Forestryks Apr 16, 2026
e91ccfd
Remove unused includes
Forestryks Apr 16, 2026
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23 changes: 0 additions & 23 deletions lld/ELF/Writer.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -13,8 +13,6 @@
#include "Config.h"
#include "InputFiles.h"
#include "LinkerScript.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Path.h"
#include "MapFile.h"
#include "OutputSections.h"
#include "Relocations.h"
Expand Down Expand Up @@ -2800,15 +2798,6 @@ template <class ELFT> void Writer<ELFT>::writeHeader() {
sec->writeHeaderTo<ELFT>(++sHdrs);
}

static StringRef parentPathOrDot(StringRef path) {
auto parent_path = sys::path::parent_path(path);
if (parent_path.empty() && !path.empty() && !sys::path::is_absolute(path)) {
return ".";
} else {
return parent_path;
}
}

// Open a result file.
template <class ELFT> void Writer<ELFT>::openFile() {
uint64_t maxSize = config->is64 ? INT64_MAX : UINT32_MAX;
Expand All @@ -2829,18 +2818,6 @@ template <class ELFT> void Writer<ELFT>::openFile() {
flags |= FileOutputBuffer::F_executable;
if (!config->mmapOutputFile)
flags |= FileOutputBuffer::F_no_mmap;
if (config->mmapOutputFile) {
// LLD relies on [fallocate] to mmap the output.
// In case there's no space left on the device
// it will error with SIGBUS, which is confusing
// for users
auto ErrOrSpaceInfo = sys::fs::disk_space(parentPathOrDot(config->outputFile));
if (!ErrOrSpaceInfo)
error("Can't get remaining size on disk");
if (ErrOrSpaceInfo.get().free < fileSize)
error("failed to open " + config->outputFile + ": " +
"No Space Left on Device");
}
Expected<std::unique_ptr<FileOutputBuffer>> bufferOrErr =
FileOutputBuffer::create(config->outputFile, fileSize, flags);

Expand Down