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authorTom <tomut@yahoo.com>2020-12-21 23:21:58 -0700
committerAndreas Kling <kling@serenityos.org>2021-01-17 20:30:31 +0100
commit1d621ab1725d1eba0fafef4575aef72682cd57ad (patch)
treeb30a1d63d09e70722fe04a45c6e96522d3a295bc /Meta
parent7581b64705ed3c5b3711c956504f278c2ea3899e (diff)
downloadserenity-1d621ab1725d1eba0fafef4575aef72682cd57ad.zip
Kernel: Some futex improvements
This adds support for FUTEX_WAKE_OP, FUTEX_WAIT_BITSET, FUTEX_WAKE_BITSET, FUTEX_REQUEUE, and FUTEX_CMP_REQUEUE, as well well as global and private futex and absolute/relative timeouts against the appropriate clock. This also changes the implementation so that kernel resources are only used when a thread is blocked on a futex. Global futexes are implemented as offsets in VMObjects, so that different processes can share a futex against the same VMObject despite potentially being mapped at different virtual addresses.
Diffstat (limited to 'Meta')
-rw-r--r--Meta/CMake/all_the_debug_macros.cmake2
1 files changed, 2 insertions, 0 deletions
diff --git a/Meta/CMake/all_the_debug_macros.cmake b/Meta/CMake/all_the_debug_macros.cmake
index 769b1a3955..9290a67a07 100644
--- a/Meta/CMake/all_the_debug_macros.cmake
+++ b/Meta/CMake/all_the_debug_macros.cmake
@@ -60,6 +60,8 @@ add_compile_definitions("FIFO_DEBUG")
add_compile_definitions("FILEDESCRIPTION_DEBUG")
add_compile_definitions("FILL_PATH_DEBUG")
add_compile_definitions("FORK_DEBUG")
+add_compile_definitions("FUTEXQUEUE_DEBUG")
+add_compile_definitions("FUTEX_DEBUG")
add_compile_definitions("GBOXLAYOUT_DEBUG")
add_compile_definitions("GEMINIJOB_DEBUG")
add_compile_definitions("GEMINI_DEBUG")