diff options
Diffstat (limited to 'community/firefox-esr/0003-xulrunner-jemalloc-aslr.patch')
| -rw-r--r-- | community/firefox-esr/0003-xulrunner-jemalloc-aslr.patch | 67 |
1 files changed, 0 insertions, 67 deletions
diff --git a/community/firefox-esr/0003-xulrunner-jemalloc-aslr.patch b/community/firefox-esr/0003-xulrunner-jemalloc-aslr.patch deleted file mode 100644 index 7aa00009f0..0000000000 --- a/community/firefox-esr/0003-xulrunner-jemalloc-aslr.patch +++ /dev/null @@ -1,67 +0,0 @@ -From 88bb9f90ec1e4b43fb78596c8ff7577c92592eb4 Mon Sep 17 00:00:00 2001 -From: Natanael Copa <ncopa@alpinelinux.org> -Date: Fri, 25 Nov 2011 08:36:52 +0000 -Subject: [PATCH 3/4] xulrunner: jemalloc aslr - ---- - memory/jemalloc/jemalloc.c | 33 ++++++++++++++++++++++----------- - 1 files changed, 22 insertions(+), 11 deletions(-) - -diff --git a/memory/jemalloc/jemalloc.c b/memory/jemalloc/jemalloc.c -index ad7c450..91de92c 100644 ---- a/memory/mozjemalloc/jemalloc.c -+++ b/memory/mozjemalloc/jemalloc.c -@@ -410,7 +410,7 @@ void *_mmap(void *addr, size_t length, int prot, int flags, - static const bool __isthreaded = true; - #endif - --#if defined(MOZ_MEMORY_SOLARIS) && defined(MAP_ALIGN) && !defined(JEMALLOC_NEVER_USES_MAP_ALIGN) -+#if defined(MOZ_MEMORY_SOLARIS) || defined(MOZ_MEMORY_LINUX) || defined(MOZ_MEMORY_BSD) - #define JEMALLOC_USES_MAP_ALIGN /* Required on Solaris 10. Might improve performance elsewhere. */ - #endif - -@@ -2181,20 +2181,31 @@ pages_map_align(size_t size, int pfd, size_t alignment) - * We don't use MAP_FIXED here, because it can cause the *replacement* - * of existing mappings, and we only want to create new mappings. - */ --#ifdef MALLOC_PAGEFILE -- if (pfd != -1) { -- ret = mmap((void *)alignment, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | -- MAP_NOSYNC | MAP_ALIGN, pfd, 0); -- } else --#endif -- { -- ret = mmap((void *)alignment, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | -- MAP_NOSYNC | MAP_ALIGN | MAP_ANON, -1, 0); -- } -+ ret = mmap(NULL, size + alignment, PROT_READ | PROT_WRITE, MAP_PRIVATE | -+ MAP_NOSYNC| MAP_ANON, -1, 0); - assert(ret != NULL); - - if (ret == MAP_FAILED) - ret = NULL; -+ else { -+ uintptr_t aligned_ret; -+ size_t extra_size; -+ -+ aligned_ret = (uintptr_t)ret + alignment - 1; -+ aligned_ret &= ~(alignment - 1); -+ extra_size = aligned_ret - (uintptr_t)ret; -+ munmap(ret, extra_size); -+ munmap(ret + extra_size + size, alignment - extra_size); -+ ret = (void *)aligned_ret; -+#ifdef MALLOC_PAGEFILE -+ if (pfd != -1) { -+ ret = mmap(ret, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | -+ MAP_NOSYNC | MAP_FIXED, pfd, 0); -+ } -+ if (ret == MAP_FAILED) -+ ret = NULL; -+#endif -+ } - return (ret); - } - #endif --- -1.7.7.4 - |