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| author | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2016-12-31 23:33:27 +0530 |
|---|---|---|
| committer | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2016-12-31 23:49:24 +0530 |
| commit | 9dd409a5f4a7a053cc962f8371dad0fe5cc22597 (patch) | |
| tree | a205733e557ccf0b66021deff34cd6b690150f9e /elf/Makefile | |
| parent | 67e58f39412ecd4467034761f3f074283c90f3c8 (diff) | |
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 'elf/Makefile')
| -rw-r--r-- | elf/Makefile | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/elf/Makefile b/elf/Makefile index de28d99224..3cda2c9db8 100644 --- a/elf/Makefile +++ b/elf/Makefile @@ -38,6 +38,12 @@ endif ifeq (yes,$(have-tunables)) dl-routines += dl-tunables + +# Make sure that the compiler does not insert any library calls in tunables +# code paths. +ifeq (yes,$(have-loop-to-function)) +CFLAGS-dl-tunables.c = -fno-tree-loop-distribute-patterns +endif endif all-dl-routines = $(dl-routines) $(sysdep-dl-routines) |