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38 lines
1.8 KiB
Diff
38 lines
1.8 KiB
Diff
From 45fdade6c0415ec5af3f9312e6311a4ccc682a7b Mon Sep 17 00:00:00 2001
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From: Khem Raj <raj.khem@gmail.com>
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Date: Wed, 28 Dec 2022 18:24:21 -0800
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Subject: [PATCH] direct_mmap: Use off_t on linux
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off64_t is not provided without defining _LARGEFILE64_SOURCE on musl
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this define is not defined automatically like glibc where it gets
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defined when _GNU_SOURCE is defined. Using off_t makes it portable
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across musl/glibc and for using 64bit off_t on glibc 32bit systems
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-D_FILE_OFFSET_BITS=64 can be defined during build via CXXFLAGS
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Upstream-Status: Submitted [https://github.com/abseil/abseil-cpp/pull/1349]
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Signed-off-by: Khem Raj <raj.khem@gmail.com>
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---
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absl/base/internal/direct_mmap.h | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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--- a/third_party/abseil-cpp/absl/base/internal/direct_mmap.h
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+++ b/third_party/abseil-cpp/absl/base/internal/direct_mmap.h
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@@ -72,7 +72,7 @@ namespace base_internal {
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// Platform specific logic extracted from
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// https://chromium.googlesource.com/linux-syscall-support/+/master/linux_syscall_support.h
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inline void* DirectMmap(void* start, size_t length, int prot, int flags, int fd,
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- off64_t offset) noexcept {
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+ off_t offset) noexcept {
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#if defined(__i386__) || defined(__ARM_ARCH_3__) || defined(__ARM_EABI__) || \
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defined(__m68k__) || defined(__sh__) || \
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(defined(__hppa__) && !defined(__LP64__)) || \
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@@ -102,7 +102,7 @@ inline void* DirectMmap(void* start, siz
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#else
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return reinterpret_cast<void*>(
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syscall(SYS_mmap2, start, length, prot, flags, fd,
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- static_cast<off_t>(offset / pagesize)));
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+ offset / pagesize));
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#endif
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#elif defined(__s390x__)
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// On s390x, mmap() arguments are passed in memory.
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