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tkcm01andClaude Opus 5.5
2fd0c1b8fa
guest_flexible_memory_declared loads a host-built .guest.prx fixture whose 512 MiB array must count against the flexible memory budget. On macOS, dl_iterate_phdr reports only images that carry the relinker's __APS5DATA,__meta program headers, which every relinked guest module has but the host-built fixture does not. GuestImageSegmentBytes left the fixture out and the test failed at its budget check. On macOS the fixture now fills its own __APS5DATA,__meta at load with one PT_LOAD header for the array, as ProcessParametersFixture does for the test program. Linux and Windows are unchanged. Co-Authored-By: Claude Opus 5.5 <[email protected]>
38 lines
1.2 KiB
C++
38 lines
1.2 KiB
C++
#ifdef __APPLE__
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#include "prx/libc/include/specifics/linux/ElfTypes.hpp"
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#include <dlfcn.h>
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#include <cstring>
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#endif
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extern "C" {
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unsigned char guestFlexibleMemoryModuleData[512u * 1024u * 1024u] = {};
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}
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#ifdef __APPLE__
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namespace {
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[[gnu::section("__APS5DATA,__meta"), gnu::used]] alignas(8) std::byte metadata[0x60 + sizeof(Elf64_Phdr)]{};
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[[maybe_unused]] const bool described = [] {
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Dl_info image{};
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if (dladdr(guestFlexibleMemoryModuleData, &image) == 0) return false;
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const std::uint64_t loadBias = reinterpret_cast<std::uintptr_t>(image.dli_fbase);
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Elf64_Phdr header{};
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header.p_type = PT_LOAD;
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header.p_flags = PF_R | PF_W;
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header.p_offset = reinterpret_cast<std::uintptr_t>(guestFlexibleMemoryModuleData) - loadBias;
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header.p_vaddr = header.p_offset;
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header.p_paddr = header.p_offset;
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header.p_memsz = sizeof(guestFlexibleMemoryModuleData);
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const std::uint64_t version = 2;
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const std::uint64_t count = 1;
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std::memcpy(metadata + 0x08, &loadBias, sizeof(loadBias));
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std::memcpy(metadata + 0x58, &count, sizeof(count));
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std::memcpy(metadata + 0x60, &header, sizeof(header));
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std::memcpy(metadata, &version, sizeof(version));
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return true;
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}();
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}
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#endif
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