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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 /malloc | |
| parent | Add framework for tunables (diff) | |
| download | glibc-9dd409a5f4a7a053cc962f8371dad0fe5cc22597.tar.gz glibc-9dd409a5f4a7a053cc962f8371dad0fe5cc22597.tar.bz2 glibc-9dd409a5f4a7a053cc962f8371dad0fe5cc22597.zip | |
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 'malloc')
| -rw-r--r-- | malloc/Makefile | 6 | ||||
| -rw-r--r-- | malloc/tst-malloc-usable-static-tunables.c | 1 | ||||
| -rw-r--r-- | malloc/tst-malloc-usable-tunables.c | 1 |
3 files changed, 7 insertions, 1 deletions
diff --git a/malloc/Makefile b/malloc/Makefile index 4e4104ec8b..a34e20c951 100644 --- a/malloc/Makefile +++ b/malloc/Makefile @@ -33,11 +33,13 @@ tests := mallocbug tst-malloc tst-valloc tst-calloc tst-obstack \ tst-mallocfork2 \ tst-interpose-nothread \ tst-interpose-thread \ + tst-malloc-usable-tunables tests-static := \ tst-interpose-static-nothread \ tst-interpose-static-thread \ - tst-malloc-usable-static + tst-malloc-usable-static \ + tst-malloc-usable-static-tunables tests += $(tests-static) test-srcs = tst-mtrace @@ -160,6 +162,8 @@ endif tst-mcheck-ENV = MALLOC_CHECK_=3 tst-malloc-usable-ENV = MALLOC_CHECK_=3 tst-malloc-usable-static-ENV = $(tst-malloc-usable-ENV) +tst-malloc-usable-tunables-ENV = GLIBC_TUNABLES=glibc.malloc.check=3 +tst-malloc-usable-static-tunables-ENV = $(tst-malloc-usable-tunables-ENV) # Uncomment this for test releases. For public releases it is too expensive. #CPPFLAGS-malloc.o += -DMALLOC_DEBUG=1 diff --git a/malloc/tst-malloc-usable-static-tunables.c b/malloc/tst-malloc-usable-static-tunables.c new file mode 100644 index 0000000000..8907db01a5 --- /dev/null +++ b/malloc/tst-malloc-usable-static-tunables.c @@ -0,0 +1 @@ +#include <malloc/tst-malloc-usable.c> diff --git a/malloc/tst-malloc-usable-tunables.c b/malloc/tst-malloc-usable-tunables.c new file mode 100644 index 0000000000..8907db01a5 --- /dev/null +++ b/malloc/tst-malloc-usable-tunables.c @@ -0,0 +1 @@ +#include <malloc/tst-malloc-usable.c> |