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6f43c86164
Closes: https://bugs.gentoo.org/906218
Upstream-Issue: https://github.com/abseil/abseil-cpp/issues/1473
Upstream-Commit: 4500c2fada
Signed-off-by: orbea <orbea@riseup.net>
Closes: https://github.com/gentoo/gentoo/pull/31367
Signed-off-by: Sam James <sam@gentoo.org>
49 lines
2.2 KiB
Diff
49 lines
2.2 KiB
Diff
https://bugs.gentoo.org/906218
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https://github.com/abseil/abseil-cpp/issues/1473
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https://github.com/abseil/abseil-cpp/commit/4500c2fada4e952037c59bd65e8be1ba0b29f21e
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From 4500c2fada4e952037c59bd65e8be1ba0b29f21e Mon Sep 17 00:00:00 2001
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From: Derek Mauro <dmauro@google.com>
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Date: Mon, 12 Jun 2023 08:11:36 -0700
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Subject: [PATCH] DirectMmap: Use off_t instead of off64_t for the offset
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parameter
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off_t is best for portability. Its size varies with the platform.
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off64_t is non-standard, but is present in glibc and some BSDs.
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It also matches the signature specified in the manual.
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https://man7.org/linux/man-pages/man2/mmap.2.html
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This is a re-spin of #1349, but correctly casts the type to the type
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expected by the kernel for mmap2.
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https://man7.org/linux/man-pages/man2/mmap2.2.html
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Fixes #1473
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PiperOrigin-RevId: 539656313
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Change-Id: I7a30dd9d3eb6af03a99da0d93d721a86f6521b25
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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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diff --git a/absl/base/internal/direct_mmap.h b/absl/base/internal/direct_mmap.h
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index 815b8d23ba3..1beb2ee4e52 100644
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--- a/absl/base/internal/direct_mmap.h
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+++ b/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, size_t length, int prot, int flags, int fd,
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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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+ static_cast<unsigned long>(offset / pagesize))); // NOLINT
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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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