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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 | 7bbf57e36a373af35431e6fb29639834f3243baa (patch) | |
| tree | e24511b06d1c540e67f8d6926e1c365798c2815e /docs/CommandGuide | |
| parent | 39d0a05d24fbb5d3636c4790422b3f98b680b626 (diff) | |
| download | clang-7bbf57e36a373af35431e6fb29639834f3243baa.tar.gz | |
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
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@246192 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs/CommandGuide')
| -rw-r--r-- | docs/CommandGuide/clang.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/docs/CommandGuide/clang.rst b/docs/CommandGuide/clang.rst index 39dbe02a0b..9f6d6f588e 100644 --- a/docs/CommandGuide/clang.rst +++ b/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 |