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| author | Adrian Prantl <aprantl@apple.com> | 2015-08-27 19:46:20 +0000 |
|---|---|---|
| committer | Adrian Prantl <aprantl@apple.com> | 2015-08-27 19:46:20 +0000 |
| commit | 6b21ab21d120abf46f06803d47da123b4e8be420 (patch) | |
| tree | 67a155d58aa3e07fc339ab38615e5bf78b60e6fc /clang/docs/CommandGuide | |
| parent | ed6eab32b38b54ed513e38eafbab6e38f3b58738 (diff) | |
| download | bcm5719-llvm-6b21ab21d120abf46f06803d47da123b4e8be420.tar.gz bcm5719-llvm-6b21ab21d120abf46f06803d47da123b4e8be420.zip | |
Add a -gmodules option to the driver and a -dwarf-ext-refs to cc1
to enable the use of external type references in the debug info
(a.k.a. module debugging).
The driver expands -gmodules to "-g -fmodule-format=obj -dwarf-ext-refs"
and passes that to cc1. All this does at the moment is set a flag
codegenopts.
http://reviews.llvm.org/D11958
llvm-svn: 246192
Diffstat (limited to 'clang/docs/CommandGuide')
| -rw-r--r-- | clang/docs/CommandGuide/clang.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/clang/docs/CommandGuide/clang.rst b/clang/docs/CommandGuide/clang.rst index 39dbe02a0b4..9f6d6f588e5 100644 --- a/clang/docs/CommandGuide/clang.rst +++ b/clang/docs/CommandGuide/clang.rst @@ -257,6 +257,13 @@ Code Generation Options Generate debug information. Note that Clang debug information works best at -O0. +.. option:: -gmodules + + Generate debug information that contains external references to + types defined in clang modules or precompiled headers instead of + emitting redundant debug type information into every object file. + This option implies `-fmodule-format=obj`. + .. option:: -fstandalone-debug -fno-standalone-debug Clang supports a number of optimizations to reduce the size of debug |
