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authorGravatar Khem Raj <raj.khem@gmail.com>2022-12-28 18:24:21 -0800
committerGravatar Khem Raj <raj.khem@gmail.com>2022-12-28 18:28:18 -0800
commit45fdade6c0415ec5af3f9312e6311a4ccc682a7b (patch)
tree542b4a34960a749fd83e7e2b71fcfeff440b9d17 /absl/base
parent6abc1958562c49d797ea23270a355caf5dc39f94 (diff)
direct_mmap: Use off_t on linux
off64_t is not provided without defining _LARGEFILE64_SOURCE on musl this define is not defined automatically like glibc where it gets defined when _GNU_SOURCE is defined. Using off_t makes it portable across musl/glibc and for using 64bit off_t on glibc 32bit systems -D_FILE_OFFSET_BITS=64 can be defined during build via CXXFLAGS Signed-off-by: Khem Raj <raj.khem@gmail.com>
Diffstat (limited to 'absl/base')
-rw-r--r--absl/base/internal/direct_mmap.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/absl/base/internal/direct_mmap.h b/absl/base/internal/direct_mmap.h
index 815b8d23..fdf88f0b 100644
--- a/absl/base/internal/direct_mmap.h
+++ b/absl/base/internal/direct_mmap.h
@@ -72,7 +72,7 @@ namespace base_internal {
// Platform specific logic extracted from
// https://chromium.googlesource.com/linux-syscall-support/+/master/linux_syscall_support.h
inline void* DirectMmap(void* start, size_t length, int prot, int flags, int fd,
- off64_t offset) noexcept {
+ off_t offset) noexcept {
#if defined(__i386__) || defined(__ARM_ARCH_3__) || defined(__ARM_EABI__) || \
defined(__m68k__) || defined(__sh__) || \
(defined(__hppa__) && !defined(__LP64__)) || \
@@ -102,7 +102,7 @@ inline void* DirectMmap(void* start, size_t length, int prot, int flags, int fd,
#else
return reinterpret_cast<void*>(
syscall(SYS_mmap2, start, length, prot, flags, fd,
- static_cast<off_t>(offset / pagesize)));
+ offset / pagesize));
#endif
#elif defined(__s390x__)
// On s390x, mmap() arguments are passed in memory.