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| author | Reid Kleckner <reid@kleckner.net> | 2014-04-10 22:58:43 +0000 |
|---|---|---|
| committer | Reid Kleckner <reid@kleckner.net> | 2014-04-10 22:58:43 +0000 |
| commit | bc1fd917f09c1ef295231d88a80874689de2ff7f (patch) | |
| tree | 317a9a78cf64b575b18adf75f5ffb4e2295cbfc1 /docs/SegmentedStacks.rst | |
| parent | ee66766568d834217fdb08e73e7f1b423b035b0f (diff) | |
| download | llvm-bc1fd917f09c1ef295231d88a80874689de2ff7f.tar.gz llvm-bc1fd917f09c1ef295231d88a80874689de2ff7f.tar.bz2 llvm-bc1fd917f09c1ef295231d88a80874689de2ff7f.tar.xz | |
Move the segmented stack switch to a function attribute
This removes the -segmented-stacks command line flag in favor of a
per-function "split-stack" attribute.
Patch by Luqman Aden and Alex Crichton!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205997 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs/SegmentedStacks.rst')
| -rw-r--r-- | docs/SegmentedStacks.rst | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/docs/SegmentedStacks.rst b/docs/SegmentedStacks.rst index e44ce42313..c0bf32b3f9 100644 --- a/docs/SegmentedStacks.rst +++ b/docs/SegmentedStacks.rst @@ -13,9 +13,8 @@ monolithic chunk (of some worst case size) at thread initialization. This is done by allocating stack blocks (henceforth called *stacklets*) and linking them into a doubly linked list. The function prologue is responsible for checking if the current stacklet has enough space for the function to execute; and if not, -call into the libgcc runtime to allocate more stack space. When using ``llc``, -segmented stacks can be enabled by adding ``-segmented-stacks`` to the command -line. +call into the libgcc runtime to allocate more stack space. Segmented stacks are +enabled with the ``"split-stack"`` attribute on LLVM functions. The runtime functionality is `already there in libgcc <http://gcc.gnu.org/wiki/SplitStacks>`_. |