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Merge pull request #12259 from jbeich/freebsd-mmap

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host_memory: unbreak build on FreeBSD x86_64
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liamwhite 2023-12-02 09:28:30 -05:00 committed by GitHub
parent 82ac3003a6 01d3e250ab
commit 7fb6fbcd87
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1 changed files with 15 additions and 13 deletions
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28
src/common/host_memory.cpp
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@ -25,6 +25,10 @@
#include <unistd.h> #include <unistd.h>
#include "common/scope_exit.h" #include "common/scope_exit.h"
#ifndef MAP_NORESERVE
#define MAP_NORESERVE 0
#endif
#endif // ^^^ Linux ^^^ #endif // ^^^ Linux ^^^
#include <mutex> #include <mutex>
@ -404,6 +408,16 @@ static void* ChooseVirtualBase(size_t virtual_size) {
#else #else
static void* ChooseVirtualBase(size_t virtual_size) { static void* ChooseVirtualBase(size_t virtual_size) {
#if defined(__FreeBSD__)
void* virtual_base =
mmap(nullptr, virtual_size, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE | MAP_ALIGNED_SUPER, -1, 0);
if (virtual_base != MAP_FAILED) {
return virtual_base;
}
#endif
return mmap(nullptr, virtual_size, PROT_READ | PROT_WRITE, return mmap(nullptr, virtual_size, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, -1, 0); MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, -1, 0);
} }
@ -459,24 +473,12 @@ public:
} }
// Virtual memory initialization // Virtual memory initialization
#if defined(__FreeBSD__)
virtual_base =
static_cast<u8*>(mmap(nullptr, virtual_size, PROT_NONE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_ALIGNED_SUPER, -1, 0));
if (virtual_base == MAP_FAILED) {
virtual_base = static_cast<u8*>(
mmap(nullptr, virtual_size, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0));
if (virtual_base == MAP_FAILED) {
LOG_CRITICAL(HW_Memory, "mmap failed: {}", strerror(errno));
throw std::bad_alloc{};
}
}
#else
virtual_base = virtual_map_base = static_cast<u8*>(ChooseVirtualBase(virtual_size)); virtual_base = virtual_map_base = static_cast<u8*>(ChooseVirtualBase(virtual_size));
if (virtual_base == MAP_FAILED) { if (virtual_base == MAP_FAILED) {
LOG_CRITICAL(HW_Memory, "mmap failed: {}", strerror(errno)); LOG_CRITICAL(HW_Memory, "mmap failed: {}", strerror(errno));
throw std::bad_alloc{}; throw std::bad_alloc{};
} }
#if defined(__linux__)
madvise(virtual_base, virtual_size, MADV_HUGEPAGE); madvise(virtual_base, virtual_size, MADV_HUGEPAGE);
#endif #endif