38 lines
1.6 KiB
Diff
38 lines
1.6 KiB
Diff
From 560380189ff29687e011eada93774af59452f2c5 Mon Sep 17 00:00:00 2001
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From: Wenlong Zhang <zhangwenlong@loongson.cn>
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Date: Wed, 6 Mar 2024 03:28:59 +0000
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Subject: [PATCH] add loongarch suopport for abseil-cpp
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---
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absl/base/internal/direct_mmap.h | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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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 1beb2ee..80fcbbb 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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@@ -80,7 +80,8 @@ inline void* DirectMmap(void* start, size_t length, int prot, int flags, int fd,
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(defined(__PPC__) && !defined(__PPC64__)) || \
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(defined(__riscv) && __riscv_xlen == 32) || \
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(defined(__s390__) && !defined(__s390x__)) || \
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- (defined(__sparc__) && !defined(__arch64__))
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+ (defined(__sparc__) && !defined(__arch64__)) || \
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+ defined(__loongarch64)
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// On these architectures, implement mmap with mmap2.
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static int pagesize = 0;
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if (pagesize == 0) {
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@@ -99,6 +100,10 @@ inline void* DirectMmap(void* start, size_t length, int prot, int flags, int fd,
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// Workaround by invoking __mmap2() instead.
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return __mmap2(start, length, prot, flags, fd,
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static_cast<size_t>(offset / pagesize));
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+#elif defined(__loongarch64)
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+ return reinterpret_cast<void*>(
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+ syscall(SYS_mmap, start, length, prot, flags, fd,
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+ static_cast<unsigned long>(offset / pagesize))); // NOLINT
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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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--
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2.43.0
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