Re: LLVM/Clang doesn't support -force_load

On Tue, Dec 29, 2020 at 05:57:11AM +0000, Dimitri Karamazov wrote:
>
> Apart from this, the following code is giving me grief.
> I see no way but to circumvent it's use, or is there?
> This code tries to get a file Name from a file Pointer.
>

first, it isn't supported on OpenBSD. You can't get a filename from a
file descriptor.

So, you will need to figure if it is possible to not use
ArchGetFileName().

I can't really comment on your error. I am not enough familiar with
C++ or with this code.

> string
> ArchGetFileName(FILE *file)
> {
> #if defined (ARCH_OS_LINUX)
> string result;
> char buf[PATH_MAX];
> ssize_t r = readlink(
> ArchStringPrintf("/proc/self/fd/%d", fileno(file)).c_str(),
> buf, sizeof(buf));
> if (r != -1) {
> result.assign(buf, buf + r);
> }
> return result;
> #elif defined (ARCH_OS_DARWIN)
> string result;
> char buf[MAXPATHLEN];
> if (fcntl(fileno(file), F_GETPATH, buf) != -1) {
> result = buf;
> }
> return result;
> #elif defined (ARCH_OS_WINDOWS)
> static constexpr DWORD bufSize =
> sizeof(FILE_NAME_INFO) + sizeof(WCHAR) * 4096;
> HANDLE hfile = _FileToWinHANDLE(file);
> auto fileNameInfo = reinterpret_cast<PFILE_NAME_INFO>(malloc(bufSize));
> string result;
> if (GetFileInformationByHandleEx(
> hfile, FileNameInfo, static_cast<void *>(fileNameInfo), bufSize)) {
> size_t outSize = WideCharToMultiByte(
> CP_UTF8, 0, fileNameInfo->FileName,
> fileNameInfo->FileNameLength/sizeof(WCHAR),
> NULL, 0, NULL, NULL);
> result.resize(outSize);
> WideCharToMultiByte(
> CP_UTF8, 0, fileNameInfo->FileName,
> fileNameInfo->FileNameLength/sizeof(WCHAR),
> &result.front(), outSize, NULL, NULL);
> }
> free(fileNameInfo);
> return result;
> #else
> #error Unknown system architecture
>