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| author | David Goldblatt <davidgoldblatt@fb.com> | 2017-09-18 22:03:52 (GMT) |
|---|---|---|
| committer | David Goldblatt <davidtgoldblatt@gmail.com> | 2017-10-16 22:35:49 (GMT) |
| commit | ccd09050aa53d083fe0b45d4704b1fe95fb00c92 (patch) | |
| tree | d1a330d939972fba5f45c0a7fac82d5baa133afa | |
| parent | 211b1f3c7de23b1915f1ce8f9277e6c1ff60cfde (diff) | |
| download | jemalloc-ccd09050aa53d083fe0b45d4704b1fe95fb00c92.zip jemalloc-ccd09050aa53d083fe0b45d4704b1fe95fb00c92.tar.gz jemalloc-ccd09050aa53d083fe0b45d4704b1fe95fb00c92.tar.bz2 | |
Add configure-time detection for madvise(..., MADV_DO[NT]DUMP)
| -rw-r--r-- | configure.ac | 11 | ||||
| -rw-r--r-- | include/jemalloc/internal/jemalloc_internal_defs.h.in | 5 |
2 files changed, 16 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 558489c..7544f57 100644 --- a/configure.ac +++ b/configure.ac @@ -1845,6 +1845,17 @@ if test "x${je_cv_madvise}" = "xyes" ; then AC_DEFINE([JEMALLOC_PURGE_MADVISE_DONTNEED], [ ]) fi + dnl Check for madvise(..., MADV_DO[NT]DUMP). + JE_COMPILABLE([madvise(..., MADV_DO[[NT]]DUMP)], [ +#include <sys/mman.h> +], [ + madvise((void *)0, 0, MADV_DONTDUMP); + madvise((void *)0, 0, MADV_DODUMP); +], [je_cv_madv_dontdump]) + if test "x${je_cv_madv_dontdump}" = "xyes" ; then + AC_DEFINE([JEMALLOC_MADVISE_DONTDUMP], [ ]) + fi + dnl Check for madvise(..., MADV_[NO]HUGEPAGE). JE_COMPILABLE([madvise(..., MADV_[[NO]]HUGEPAGE)], [ #include <sys/mman.h> diff --git a/include/jemalloc/internal/jemalloc_internal_defs.h.in b/include/jemalloc/internal/jemalloc_internal_defs.h.in index b56f21f..aadfbed 100644 --- a/include/jemalloc/internal/jemalloc_internal_defs.h.in +++ b/include/jemalloc/internal/jemalloc_internal_defs.h.in @@ -289,6 +289,11 @@ #undef JEMALLOC_DEFINE_MADVISE_FREE /* + * Defined if MADV_DO[NT]DUMP is supported as an argument to madvise. + */ +#undef JEMALLOC_MADVISE_DONTDUMP + +/* * Defined if transparent huge pages (THPs) are supported via the * MADV_[NO]HUGEPAGE arguments to madvise(2), and THP support is enabled. */ |