[llvm] c2ead57 - [llvm-objdump] Document --mattr=help in --help output
David Spickett via llvm-commits
llvm-commits at lists.llvm.org
Mon Nov 30 04:53:01 PST 2020
Author: David Spickett
Date: 2020-11-30T12:52:54Z
New Revision: c2ead57ccf74900901fdda1cd0fbe9a7a0d1297a
URL: https://github.com/llvm/llvm-project/commit/c2ead57ccf74900901fdda1cd0fbe9a7a0d1297a
DIFF: https://github.com/llvm/llvm-project/commit/c2ead57ccf74900901fdda1cd0fbe9a7a0d1297a.diff
LOG: [llvm-objdump] Document --mattr=help in --help output
This does the same as `--mcpu=help` but was only
documented in the user guide.
* Added a test for both options.
* Corrected the single dash in `-mcpu=help` text.
Reviewed By: jhenderson
Differential Revision: https://reviews.llvm.org/D92305
Added:
llvm/test/tools/llvm-objdump/mattr-mcpu-help.test
Modified:
llvm/docs/CommandGuide/llvm-objdump.rst
llvm/tools/llvm-objdump/llvm-objdump.cpp
Removed:
################################################################################
diff --git a/llvm/docs/CommandGuide/llvm-objdump.rst b/llvm/docs/CommandGuide/llvm-objdump.rst
index 4acb04833ab13..1ac7a05cbdb0a 100644
--- a/llvm/docs/CommandGuide/llvm-objdump.rst
+++ b/llvm/docs/CommandGuide/llvm-objdump.rst
@@ -156,7 +156,7 @@ OPTIONS
.. option:: --mattr=<a1,+a2,-a3,...>
- Enable/disable target-specific attributes. Specify ``--mcpu=help`` to display
+ Enable/disable target-specific attributes. Specify ``--mattr=help`` to display
the available attributes.
.. option:: --no-leading-addr
diff --git a/llvm/test/tools/llvm-objdump/mattr-mcpu-help.test b/llvm/test/tools/llvm-objdump/mattr-mcpu-help.test
new file mode 100644
index 0000000000000..4c3198b0fbfed
--- /dev/null
+++ b/llvm/test/tools/llvm-objdump/mattr-mcpu-help.test
@@ -0,0 +1,15 @@
+# RUN: yaml2obj %s -o %t
+# RUN: llvm-objdump -d %t --mattr=help 2>&1 | FileCheck %s
+# RUN: llvm-objdump -d %t --mcpu=help 2>&1 | FileCheck %s
+
+# CHECK: Available CPUs for this target:
+# CHECK: Available features for this target:
+## To check we still disassemble the file:
+# CHECK: file format elf64-x86-64
+
+--- !ELF
+FileHeader:
+ Class: ELFCLASS64
+ Data: ELFDATA2LSB
+ Type: ET_EXEC
+ Machine: EM_X86_64
diff --git a/llvm/tools/llvm-objdump/llvm-objdump.cpp b/llvm/tools/llvm-objdump/llvm-objdump.cpp
index bc13b26b797d8..bb33d254370e6 100644
--- a/llvm/tools/llvm-objdump/llvm-objdump.cpp
+++ b/llvm/tools/llvm-objdump/llvm-objdump.cpp
@@ -226,13 +226,13 @@ static cl::alias MachOm("m", cl::desc("Alias for --macho"), cl::NotHidden,
cl::Grouping, cl::aliasopt(MachOOpt));
cl::opt<std::string> objdump::MCPU(
- "mcpu", cl::desc("Target a specific cpu type (-mcpu=help for details)"),
+ "mcpu", cl::desc("Target a specific cpu type (--mcpu=help for details)"),
cl::value_desc("cpu-name"), cl::init(""), cl::cat(ObjdumpCat));
-cl::list<std::string> objdump::MAttrs("mattr", cl::CommaSeparated,
- cl::desc("Target specific attributes"),
- cl::value_desc("a1,+a2,-a3,..."),
- cl::cat(ObjdumpCat));
+cl::list<std::string> objdump::MAttrs(
+ "mattr", cl::CommaSeparated,
+ cl::desc("Target specific attributes (--mattr=help for details)"),
+ cl::value_desc("a1,+a2,-a3,..."), cl::cat(ObjdumpCat));
cl::opt<bool> objdump::NoShowRawInsn(
"no-show-raw-insn",
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