diff options
Diffstat (limited to 'absl/base/internal/direct_mmap.h')
| -rw-r--r-- | absl/base/internal/direct_mmap.h | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/absl/base/internal/direct_mmap.h b/absl/base/internal/direct_mmap.h index e98c9960..f064e363 100644 --- a/absl/base/internal/direct_mmap.h +++ b/absl/base/internal/direct_mmap.h @@ -62,7 +62,7 @@ extern "C" void* __mmap2(void*, size_t, int, int, int, size_t); #endif // __BIONIC__ namespace absl { -inline namespace lts_2018_06_20 { +inline namespace lts_2018_12_18 { namespace base_internal { // Platform specific logic extracted from @@ -76,7 +76,11 @@ inline void* DirectMmap(void* start, size_t length, int prot, int flags, int fd, // On these architectures, implement mmap with mmap2. static int pagesize = 0; if (pagesize == 0) { +#if defined(__wasm__) || defined(__asmjs__) pagesize = getpagesize(); +#else + pagesize = sysconf(_SC_PAGESIZE); +#endif } if (offset < 0 || offset % pagesize != 0) { errno = EINVAL; @@ -93,11 +97,13 @@ inline void* DirectMmap(void* start, size_t length, int prot, int flags, int fd, #endif #elif defined(__s390x__) // On s390x, mmap() arguments are passed in memory. - uint32_t buf[6] = { - reinterpret_cast<uint32_t>(start), static_cast<uint32_t>(length), - static_cast<uint32_t>(prot), static_cast<uint32_t>(flags), - static_cast<uint32_t>(fd), static_cast<uint32_t>(offset)}; - return reintrepret_cast<void*>(syscall(SYS_mmap, buf)); + unsigned long buf[6] = {reinterpret_cast<unsigned long>(start), // NOLINT + static_cast<unsigned long>(length), // NOLINT + static_cast<unsigned long>(prot), // NOLINT + static_cast<unsigned long>(flags), // NOLINT + static_cast<unsigned long>(fd), // NOLINT + static_cast<unsigned long>(offset)}; // NOLINT + return reinterpret_cast<void*>(syscall(SYS_mmap, buf)); #elif defined(__x86_64__) // The x32 ABI has 32 bit longs, but the syscall interface is 64 bit. // We need to explicitly cast to an unsigned 64 bit type to avoid implicit @@ -123,7 +129,7 @@ inline int DirectMunmap(void* start, size_t length) { } } // namespace base_internal -} // inline namespace lts_2018_06_20 +} // inline namespace lts_2018_12_18 } // namespace absl #else // !__linux__ @@ -132,7 +138,7 @@ inline int DirectMunmap(void* start, size_t length) { // actual mmap()/munmap() methods. namespace absl { -inline namespace lts_2018_06_20 { +inline namespace lts_2018_12_18 { namespace base_internal { inline void* DirectMmap(void* start, size_t length, int prot, int flags, int fd, @@ -145,7 +151,7 @@ inline int DirectMunmap(void* start, size_t length) { } } // namespace base_internal -} // inline namespace lts_2018_06_20 +} // inline namespace lts_2018_12_18 } // namespace absl #endif // __linux__ |