diff options
Diffstat (limited to 'js/src/gc/Memory.cpp')
| -rw-r--r-- | js/src/gc/Memory.cpp | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/js/src/gc/Memory.cpp b/js/src/gc/Memory.cpp index 268e1e489..418984057 100644 --- a/js/src/gc/Memory.cpp +++ b/js/src/gc/Memory.cpp @@ -415,8 +415,15 @@ InitMemorySubsystem() static inline void* MapMemoryAt(void* desired, size_t length, int prot = PROT_READ | PROT_WRITE, int flags = MAP_PRIVATE | MAP_ANON, int fd = -1, off_t offset = 0) + +// Solaris manages 64-bit address space in a different manner from every other +// AMD64 operating system, but fortunately the fix is the same one +// required for every operating system on 64-bit SPARC, Itanium, and ARM. +// Most people's intuition failed them here and they thought this couldn't +// possibly be correct on AMD64, but for Solaris/illumos it is. + { -#if defined(__ia64__) || (defined(__sparc64__) && defined(__NetBSD__)) || defined(__aarch64__) +#if defined(__ia64__) || (defined(__sparc64__) && defined(__NetBSD__)) || defined(__aarch64__) || (defined(__sun) && defined(__x86_64__)) MOZ_ASSERT((0xffff800000000000ULL & (uintptr_t(desired) + length - 1)) == 0); #endif void* region = mmap(desired, length, prot, flags, fd, offset); @@ -466,7 +473,7 @@ MapMemory(size_t length, int prot = PROT_READ | PROT_WRITE, return nullptr; } return region; -#elif defined(__aarch64__) +#elif defined(__aarch64__) || (defined(__sun) && defined(__x86_64__)) /* * There might be similar virtual address issue on arm64 which depends on * hardware and kernel configurations. But the work around is slightly @@ -678,7 +685,11 @@ MarkPagesUnused(void* p, size_t size) return false; MOZ_ASSERT(OffsetFromAligned(p, pageSize) == 0); - int result = madvise(p, size, MADV_DONTNEED); +#ifdef XP_SOLARIS + int result = posix_madvise(p, size, POSIX_MADV_DONTNEED); +#else + int result = madvise(p, size, MADV_DONTNEED); +#endif return result != -1; } |