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authorSiddhesh Poyarekar <siddhesh@sourceware.org>2016-12-31 23:33:27 +0530
committerSiddhesh Poyarekar <siddhesh@sourceware.org>2016-12-31 23:49:24 +0530
commit9dd409a5f4a7a053cc962f8371dad0fe5cc22597 (patch)
treea205733e557ccf0b66021deff34cd6b690150f9e /config.make.in
parent67e58f39412ecd4467034761f3f074283c90f3c8 (diff)
downloadglibc-9dd409a5f4a7a053cc962f8371dad0fe5cc22597.tar.gz
Initialize tunable list with the GLIBC_TUNABLES environment variable
Read tunables values from the users using the GLIBC_TUNABLES environment variable. The value of this variable is a colon-separated list of name=value pairs. So a typical string would look like this: GLIBC_TUNABLES=glibc.malloc.mmap_threshold=2048:glibc.malloc.trim_threshold=1024 * config.make.in (have-loop-to-function): Define. * elf/Makefile (CFLAGS-dl-tunables.c): Add -fno-tree-loop-distribute-patterns. * elf/dl-tunables.c: Include libc-internals.h. (GLIBC_TUNABLES): New macro. (tunables_strdup): New function. (parse_tunables): New function. (min_strlen): New function. (__tunables_init): Use the new functions and macro. (disable_tunable): Disable tunable from GLIBC_TUNABLES. * malloc/tst-malloc-usable-tunables.c: New test case. * malloc/tst-malloc-usable-static-tunables.c: New test case. * malloc/Makefile (tests, tests-static): Add tests.
Diffstat (limited to 'config.make.in')
-rw-r--r--config.make.in1
1 files changed, 1 insertions, 0 deletions
diff --git a/config.make.in b/config.make.in
index 2f8dae213d..5836b32a72 100644
--- a/config.make.in
+++ b/config.make.in
@@ -71,6 +71,7 @@ have-hash-style = @libc_cv_hashstyle@
use-default-link = @use_default_link@
output-format = @libc_cv_output_format@
have-cxx-thread_local = @libc_cv_cxx_thread_local@
+have-loop-to-function = @libc_cv_cc_loop_to_function@
multi-arch = @multi_arch@