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Minor tweaks to tls_win32.hpp

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This commit is contained in:
Emil Dotchevski
2025-12-16 19:54:41 -05:00
parent fdff55c3c4
commit 3e9d820afc
1 changed files with 23 additions and 12 deletions
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35
include/boost/leaf/config/tls_win32.hpp
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@@ -252,14 +252,16 @@ namespace detail
hinstance_ = hinstDLL;
char name[64];
int num_written = std::snprintf(name, sizeof(name), "Local\\boost_leaf_tls_%lu", GetCurrentProcessId());
BOOST_LEAF_ASSERT(num_written >= 0 && num_written < sizeof(name)), (void) num_written;
BOOST_LEAF_ASSERT(num_written >= 0 && num_written < int(sizeof(name))), (void) num_written;
HANDLE mapping = CreateFileMappingA(INVALID_HANDLE_VALUE, nullptr, PAGE_READWRITE, 0, sizeof(slot_map *), name);
if (!mapping)
{
tls_failures_ |= tls_failure_create_mapping;
return;
}
bool is_first_module = (GetLastError() != ERROR_ALREADY_EXISTS);
DWORD mapping_status = GetLastError();
BOOST_LEAF_ASSERT(mapping_status == ERROR_ALREADY_EXISTS || mapping_status == ERROR_SUCCESS);
bool is_first_module = (mapping_status == ERROR_SUCCESS);
slot_map * * mapped_ptr = static_cast<slot_map * *>(MapViewOfFile(mapping, FILE_MAP_WRITE, 0, 0, sizeof(slot_map *)));
if (!mapped_ptr)
{
@@ -333,17 +335,26 @@ namespace detail
}
#ifdef _MSC_VER
#pragma section(".CRT$XLB", long, read)
#pragma data_seg(push, ".CRT$XLB")
extern "C" __declspec(selectany) PIMAGE_TLS_CALLBACK boost_leaf_tls_callback = tls_callback;
#pragma data_seg(pop)
#ifdef _WIN64
#pragma comment(linker, "/INCLUDE:boost_leaf_tls_callback")
#else
#pragma comment(linker, "/INCLUDE:_boost_leaf_tls_callback")
#endif
# pragma section(".CRT$XLB", long, read)
# pragma data_seg(push, ".CRT$XLB")
extern "C" __declspec(selectany) PIMAGE_TLS_CALLBACK boost_leaf_tls_callback = tls_callback;
# pragma data_seg(pop)
# ifdef _WIN64
# pragma comment(linker, "/INCLUDE:boost_leaf_tls_callback")
# else
# pragma comment(linker, "/INCLUDE:_boost_leaf_tls_callback")
# endif
#elif defined(__GNUC__)
extern "C" __attribute__((used, weak)) PIMAGE_TLS_CALLBACK boost_leaf_tls_callback __attribute__((section(".CRT$XLB"))) = tls_callback;
# pragma GCC diagnostic push
# pragma GCC diagnostic ignored "-Wattributes"
extern "C" __attribute__((used, selectany)) PIMAGE_TLS_CALLBACK boost_leaf_tls_callback __attribute__((section(".CRT$XLB"))) = tls_callback;
# pragma GCC diagnostic pop
#else
# error Unknown compiler, unable to define .CRT$XLB section
#endif
} // namespace detail