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| author | athenian200 <athenian200@outlook.com> | 2019-10-01 21:36:29 -0500 |
|---|---|---|
| committer | athenian200 <athenian200@outlook.com> | 2019-10-21 04:53:40 -0500 |
| commit | 3647f42c27761472e4ee204bade964e8ffad4679 (patch) | |
| tree | 40fa50571360bd3630ddb2f3e153c4a7ef468cd7 /mfbt | |
| parent | 57bfda37aebdef6a0f7bbb320d508dfaf1a89718 (diff) | |
| download | uxp-3647f42c27761472e4ee204bade964e8ffad4679.tar.gz | |
MoonchildProductions#1251 - Part 7: All the posix_m* memory-related stuff, gathered together.
https://bugzilla.mozilla.org/show_bug.cgi?id=1158445
https://bugzilla.mozilla.org/show_bug.cgi?id=963983
https://bugzilla.mozilla.org/show_bug.cgi?id=1542758
Solaris madvise and malign don't perfectly map to their POSIX counterparts, and some Linux versions (especially Android) don't define the POSIX counterparts at all, so options are limited. Ideally posix_madvise and posix_malign should be the safer and more portable options for all platforms.
Diffstat (limited to 'mfbt')
| -rw-r--r-- | mfbt/Poison.cpp | 4 | ||||
| -rw-r--r-- | mfbt/tests/TestPoisonArea.cpp | 4 |
2 files changed, 8 insertions, 0 deletions
diff --git a/mfbt/Poison.cpp b/mfbt/Poison.cpp index b2767011d5..7972dbea35 100644 --- a/mfbt/Poison.cpp +++ b/mfbt/Poison.cpp @@ -129,7 +129,11 @@ ReleaseRegion(void* aRegion, uintptr_t aSize) static bool ProbeRegion(uintptr_t aRegion, uintptr_t aSize) { +#ifdef XP_SOLARIS + if (posix_madvise(reinterpret_cast<void*>(aRegion), aSize, POSIX_MADV_NORMAL)) { +#else if (madvise(reinterpret_cast<void*>(aRegion), aSize, MADV_NORMAL)) { +#endif return true; } else { return false; diff --git a/mfbt/tests/TestPoisonArea.cpp b/mfbt/tests/TestPoisonArea.cpp index 6f1b61ed37..fb39ccf790 100644 --- a/mfbt/tests/TestPoisonArea.cpp +++ b/mfbt/tests/TestPoisonArea.cpp @@ -266,7 +266,11 @@ ReleaseRegion(void* aPage) static bool ProbeRegion(uintptr_t aPage) { +#ifdef XP_SOLARIS + return !!posix_madvise(reinterpret_cast<void*>(aPage), PageSize(), POSIX_MADV_NORMAL); +#else return !!madvise(reinterpret_cast<void*>(aPage), PageSize(), MADV_NORMAL); +#endif } static int |