[llvm] Revert "Add --offoading option to llvm-readobj (#143342)" (PR #161606)
Kirill Stoimenov via llvm-commits
llvm-commits at lists.llvm.org
Wed Oct 1 16:20:09 PDT 2025
https://github.com/kstoimenov created https://github.com/llvm/llvm-project/pull/161606
Sanitizer bots are still broken.
This reverts commit 07f8f088b4b3d1c58e73f13a288ff2c088d15ad6.
>From a08ab739468562909bc3edb1f76f9e12cc842c8b Mon Sep 17 00:00:00 2001
From: Kirill Stoimenov <kstoimenov at google.com>
Date: Wed, 1 Oct 2025 23:14:15 +0000
Subject: [PATCH] Revert "Add --offoading option to llvm-readobj (#143342)"
Sanitizer bots are still broken.
This reverts commit 07f8f088b4b3d1c58e73f13a288ff2c088d15ad6.
---
llvm/docs/CommandGuide/llvm-readelf.rst | 4 ---
llvm/docs/CommandGuide/llvm-readobj.rst | 4 ---
llvm/include/llvm/Object/OffloadBundle.h | 2 +-
llvm/lib/Object/OffloadBundle.cpp | 18 ++++++-------
.../ELF/AMDGPU/offloading-fail.test | 26 ------------------
.../llvm-readobj/ELF/AMDGPU/offloading.test | 27 -------------------
llvm/tools/llvm-readobj/ObjDumper.cpp | 12 ---------
llvm/tools/llvm-readobj/ObjDumper.h | 2 --
llvm/tools/llvm-readobj/Opts.td | 1 -
llvm/tools/llvm-readobj/llvm-readobj.cpp | 5 ----
10 files changed, 10 insertions(+), 91 deletions(-)
delete mode 100644 llvm/test/tools/llvm-readobj/ELF/AMDGPU/offloading-fail.test
delete mode 100644 llvm/test/tools/llvm-readobj/ELF/AMDGPU/offloading.test
diff --git a/llvm/docs/CommandGuide/llvm-readelf.rst b/llvm/docs/CommandGuide/llvm-readelf.rst
index 5403fea60d5ee..284c3aa470a6f 100644
--- a/llvm/docs/CommandGuide/llvm-readelf.rst
+++ b/llvm/docs/CommandGuide/llvm-readelf.rst
@@ -143,10 +143,6 @@ OPTIONS
Display all notes.
-.. option:: --offloading
-
- Display list of HIP offload bundles.
-
.. option:: --pretty-print
When used with :option:`--elf-output-style`, JSON output will be formatted in
diff --git a/llvm/docs/CommandGuide/llvm-readobj.rst b/llvm/docs/CommandGuide/llvm-readobj.rst
index 0d05b947a6b3e..8bd29eafbbfcf 100644
--- a/llvm/docs/CommandGuide/llvm-readobj.rst
+++ b/llvm/docs/CommandGuide/llvm-readobj.rst
@@ -104,10 +104,6 @@ file formats.
Do not demangle symbol names in the output. This option is only for ELF and
XCOFF file formats. The option is enabled by default.
-.. option:: --offloading
-
- Display list of HIP offload bundles.
-
.. option:: --relocations, --relocs, -r
Display the relocation entries in the file.
diff --git a/llvm/include/llvm/Object/OffloadBundle.h b/llvm/include/llvm/Object/OffloadBundle.h
index 18be62b10c518..f4d5a1d878b8d 100644
--- a/llvm/include/llvm/Object/OffloadBundle.h
+++ b/llvm/include/llvm/Object/OffloadBundle.h
@@ -161,7 +161,7 @@ struct OffloadBundleURI {
OffsetStr.getAsInteger(10, O);
Str = Str.drop_front(OffsetStr.size());
- if (!Str.consume_front("&size="))
+ if (Str.consume_front("&size="))
return createStringError(object_error::parse_failed,
"Reading 'size' in URI");
diff --git a/llvm/lib/Object/OffloadBundle.cpp b/llvm/lib/Object/OffloadBundle.cpp
index 0dd378e65fd81..1e1042ce2bc21 100644
--- a/llvm/lib/Object/OffloadBundle.cpp
+++ b/llvm/lib/Object/OffloadBundle.cpp
@@ -89,17 +89,17 @@ Error OffloadBundleFatBin::readEntries(StringRef Buffer,
uint64_t EntryIDSize;
StringRef EntryID;
- if (Error Err = Reader.readInteger(EntryOffset))
- return Err;
+ if (auto EC = Reader.readInteger(EntryOffset))
+ return errorCodeToError(object_error::parse_failed);
- if (Error Err = Reader.readInteger(EntrySize))
- return Err;
+ if (auto EC = Reader.readInteger(EntrySize))
+ return errorCodeToError(object_error::parse_failed);
- if (Error Err = Reader.readInteger(EntryIDSize))
- return Err;
+ if (auto EC = Reader.readInteger(EntryIDSize))
+ return errorCodeToError(object_error::parse_failed);
- if (Error Err = Reader.readFixedString(EntryID, EntryIDSize))
- return Err;
+ if (auto EC = Reader.readFixedString(EntryID, EntryIDSize))
+ return errorCodeToError(object_error::parse_failed);
auto Entry = std::make_unique<OffloadBundleEntry>(
EntryOffset + SectionOffset, EntrySize, EntryIDSize, EntryID);
@@ -125,7 +125,7 @@ OffloadBundleFatBin::create(MemoryBufferRef Buf, uint64_t SectionOffset,
// Read the Bundle Entries
Error Err = TheBundle->readEntries(Buf.getBuffer(), SectionOffset);
if (Err)
- return Err;
+ return errorCodeToError(object_error::parse_failed);
return std::unique_ptr<OffloadBundleFatBin>(TheBundle);
}
diff --git a/llvm/test/tools/llvm-readobj/ELF/AMDGPU/offloading-fail.test b/llvm/test/tools/llvm-readobj/ELF/AMDGPU/offloading-fail.test
deleted file mode 100644
index 391b7ee3facce..0000000000000
--- a/llvm/test/tools/llvm-readobj/ELF/AMDGPU/offloading-fail.test
+++ /dev/null
@@ -1,26 +0,0 @@
-## Test that --offloading with a fatbin works correctly.
-# REQUIRES: amdgpu-registered-target
-
-# RUN: yaml2obj %s -o %t.elf
-# RUN: llvm-readobj --offloading %t.elf 2>&1 | \
-# RUN: FileCheck %s --check-prefix=WARN -DFILE_NAME=%t.elf
-
-# WARN: warning: '{{.*}}': Stream Error: The stream is too short to perform the requested operation.
-
---- !ELF
-FileHeader:
- Class: ELFCLASS64
- Data: ELFDATA2LSB
- Type: ET_EXEC
-Sections:
- - Name: .hip_fatbin
- Type: SHT_PROGBITS
- AddressAlign: 0x1000
- Content: 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- - Name: .hipFatBinSegment
- Type: SHT_PROGBITS
- Flags: [ SHF_ALLOC ]
- Address: 0x202FD0
- AddressAlign: 0x8
- Content: '465049480100000000102000000000000000000000000000'
-...
diff --git a/llvm/test/tools/llvm-readobj/ELF/AMDGPU/offloading.test b/llvm/test/tools/llvm-readobj/ELF/AMDGPU/offloading.test
deleted file mode 100644
index 21ee60d2ea829..0000000000000
--- a/llvm/test/tools/llvm-readobj/ELF/AMDGPU/offloading.test
+++ /dev/null
@@ -1,27 +0,0 @@
-## Test that --offloading with a fatbin works correctly.
-# REQUIRES: amdgpu-registered-target
-
-# RUN: yaml2obj %s -o %t.elf
-# RUN: llvm-readobj --offloading %t.elf | \
-# RUN: FileCheck %s -DFILE_NAME=%t.elf
-
-# CHECK: host-x86_64-unknown-linux-- file://[[FILE_NAME]]#offset=8192&size=0
-# CHECK-NEXT: hipv4-amdgcn-amd-amdhsa--gfx908 file://[[FILE_NAME]]#offset=8192&size=4048
-
---- !ELF
-FileHeader:
- Class: ELFCLASS64
- Data: ELFDATA2LSB
- Type: ET_EXEC
-Sections:
- - Name: .hip_fatbin
- Type: SHT_PROGBITS
- AddressAlign: 0x1000
- Content: 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- - Name: .hipFatBinSegment
- Type: SHT_PROGBITS
- Flags: [ SHF_ALLOC ]
- Address: 0x202FD0
- AddressAlign: 0x8
- Content: '465049480100000000102000000000000000000000000000'
-...
diff --git a/llvm/tools/llvm-readobj/ObjDumper.cpp b/llvm/tools/llvm-readobj/ObjDumper.cpp
index 0b59dd48d4203..bd670aeab9ed8 100644
--- a/llvm/tools/llvm-readobj/ObjDumper.cpp
+++ b/llvm/tools/llvm-readobj/ObjDumper.cpp
@@ -16,8 +16,6 @@
#include "llvm/Object/Archive.h"
#include "llvm/Object/Decompressor.h"
#include "llvm/Object/ObjectFile.h"
-#include "llvm/Object/OffloadBinary.h"
-#include "llvm/Object/OffloadBundle.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/FormatVariadic.h"
#include "llvm/Support/ScopedPrinter.h"
@@ -232,14 +230,4 @@ void ObjDumper::printSectionsAsHex(const object::ObjectFile &Obj,
}
}
-void ObjDumper::printOffloading(const object::ObjectFile &Obj) {
- SmallVector<llvm::object::OffloadBundleFatBin> Bundles;
- if (Error Err = object::extractOffloadBundleFatBinary(Obj, Bundles))
- reportWarning(std::move(Err), Obj.getFileName());
-
- // Print out all the FatBin Bundles that are contained in this buffer.
- for (const auto &[Index, Bundle] : llvm::enumerate(Bundles))
- Bundle.printEntriesAsURI();
-}
-
} // namespace llvm
diff --git a/llvm/tools/llvm-readobj/ObjDumper.h b/llvm/tools/llvm-readobj/ObjDumper.h
index d26439435a82b..a654078a770ff 100644
--- a/llvm/tools/llvm-readobj/ObjDumper.h
+++ b/llvm/tools/llvm-readobj/ObjDumper.h
@@ -16,7 +16,6 @@
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Object/ObjectFile.h"
-#include "llvm/Object/OffloadBinary.h"
#include "llvm/Support/CommandLine.h"
#include <unordered_set>
@@ -189,7 +188,6 @@ class ObjDumper {
std::function<Error(const Twine &Msg)> WarningHandler;
void reportUniqueWarning(Error Err) const;
void reportUniqueWarning(const Twine &Msg) const;
- void printOffloading(const object::ObjectFile &Obj);
protected:
ScopedPrinter &W;
diff --git a/llvm/tools/llvm-readobj/Opts.td b/llvm/tools/llvm-readobj/Opts.td
index 97d5d7f96dc32..711522c4acb14 100644
--- a/llvm/tools/llvm-readobj/Opts.td
+++ b/llvm/tools/llvm-readobj/Opts.td
@@ -32,7 +32,6 @@ def file_header : FF<"file-header", "Display file header">;
def headers : FF<"headers", "Equivalent to setting: --file-header, --program-headers, --section-headers">;
defm hex_dump : Eq<"hex-dump", "Display the specified section(s) as hexadecimal bytes">, MetaVarName<"<name or index>">;
def pretty_print : FF<"pretty-print", "Pretty print JSON output">;
-def offloading : FF<"offloading", "Display the content of the offloading section">;
def relocs : FF<"relocs", "Display the relocation entries in the file">;
def section_data : FF<"section-data", "Display section data for each section shown. This option has no effect for GNU style output">;
def section_details : FF<"section-details", "Display the section details">;
diff --git a/llvm/tools/llvm-readobj/llvm-readobj.cpp b/llvm/tools/llvm-readobj/llvm-readobj.cpp
index 5327731805010..2b34761b2cc6c 100644
--- a/llvm/tools/llvm-readobj/llvm-readobj.cpp
+++ b/llvm/tools/llvm-readobj/llvm-readobj.cpp
@@ -135,7 +135,6 @@ static bool HashHistogram;
static bool Memtag;
static bool NeededLibraries;
static bool Notes;
-static bool Offloading;
static bool ProgramHeaders;
static bool SectionGroups;
static std::vector<std::string> SFrame;
@@ -275,7 +274,6 @@ static void parseOptions(const opt::InputArgList &Args) {
opts::Memtag = Args.hasArg(OPT_memtag);
opts::NeededLibraries = Args.hasArg(OPT_needed_libs);
opts::Notes = Args.hasArg(OPT_notes);
- opts::Offloading = Args.hasArg(OPT_offloading);
opts::PrettyPrint = Args.hasArg(OPT_pretty_print);
opts::ProgramHeaders = Args.hasArg(OPT_program_headers);
opts::SectionGroups = Args.hasArg(OPT_section_groups);
@@ -461,8 +459,6 @@ static void dumpObject(ObjectFile &Obj, ScopedPrinter &Writer,
Dumper->printGnuHashTable();
if (opts::VersionInfo)
Dumper->printVersionInfo();
- if (opts::Offloading)
- Dumper->printOffloading(Obj);
if (opts::StringTable)
Dumper->printStringTable();
if (Obj.isELF()) {
@@ -711,7 +707,6 @@ int llvm_readobj_main(int argc, char **argv, const llvm::ToolContext &) {
opts::DynamicTable = true;
opts::Notes = true;
opts::VersionInfo = true;
- opts::Offloading = true;
opts::UnwindInfo = true;
opts::SectionGroups = true;
opts::HashHistogram = true;
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