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James Henderson 33503da181 [binutils] Add response file option to help and docs
Many LLVM-based tools already support response files (i.e. files
containing a list of options, specified with '@'). This change simply
updates the documentation and help text for some of these tools to
include it. I haven't attempted to fix all tools, just a selection that
I am interested in.

I've taken the opportunity to add some tests for --help behaviour, where
they were missing. We could expand these tests, but I don't think that's
within scope of this patch.

This fixes https://bugs.llvm.org/show_bug.cgi?id=42233 and
https://bugs.llvm.org/show_bug.cgi?id=42236.

Reviewed by: grimar, MaskRay, jkorous

Differential Revision: https://reviews.llvm.org/D63597

llvm-svn: 364036
2019-06-21 11:49:20 +00:00

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RUN: llvm-dwarfdump -h 2>&1 | FileCheck --check-prefix=HELP %s --implicit-check-not=out-file
RUN: llvm-dwarfdump --help 2>&1 | FileCheck --check-prefix=HELP %s --implicit-check-not=out-file
HELP: USAGE: llvm-dwarfdump{{[^ ]*}} [options] <input object files or .dSYM bundles>
HELP: Color Options
HELP: -color
HELP: Generic Options
HELP: -help
HELP: -help-list
HELP: -version
HELP: Section-specific Dump Options
HELP: -debug-info - Dump the .debug_info section
HELP: -eh-frame
HELP: Specific Options
HELP: -diff
HELP: -find
HELP: -ignore-case
HELP: -lookup
HELP: -name
HELP: -o=<filename>
HELP: -parent-recurse-depth=<N>
HELP: -recurse-depth=<N>
HELP: -regex
HELP: -show-children
HELP: -show-form
HELP: -show-parents
HELP: -statistics
HELP: -summarize-types
HELP: @FILE
RUN: llvm-dwarfdump --version 2>&1 | FileCheck --check-prefix=VERSION %s
VERSION: {{ version }}
RUN: llvm-dwarfdump -diff -verbose 2>&1 | FileCheck --check-prefix=INCOMPATIBLE %s
INCOMPATIBLE: error: incompatible arguments: specifying both -diff and -verbose is currently not supported