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| author | Martin Liska <mliska@suse.cz> | 2019-08-08 09:50:28 +0200 |
|---|---|---|
| committer | Martin Liska <marxin@gcc.gnu.org> | 2019-08-08 07:50:28 +0000 |
| commit | 0fddb1847019ceb570c6e0aea0ea779f1f9988cf (patch) | |
| tree | 8b7110505306ba08d399f18bc2af2f9037284603 /libiberty/lrealpath.c | |
| parent | fe8e21fd730f01815bf6533289d2b3e33033a250 (diff) | |
| download | gcc-0fddb1847019ceb570c6e0aea0ea779f1f9988cf.zip gcc-0fddb1847019ceb570c6e0aea0ea779f1f9988cf.tar.gz gcc-0fddb1847019ceb570c6e0aea0ea779f1f9988cf.tar.bz2 | |
Fix file descriptor existence of MinGW.
2019-08-08 Martin Liska <mliska@suse.cz>
PR bootstrap/91352
* gcc.c (driver::detect_jobserver): Use is_valid_fd.
* lto-wrapper.c (jobserver_active_p): Likewise.
2019-08-08 Martin Liska <mliska@suse.cz>
PR bootstrap/91352
* libiberty.h (is_valid_fd): New function.
2019-08-08 Martin Liska <mliska@suse.cz>
PR bootstrap/91352
* lrealpath.c (is_valid_fd): New function.
From-SVN: r274208
Diffstat (limited to 'libiberty/lrealpath.c')
| -rw-r--r-- | libiberty/lrealpath.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/libiberty/lrealpath.c b/libiberty/lrealpath.c index 7f66dc2..ac914a7 100644 --- a/libiberty/lrealpath.c +++ b/libiberty/lrealpath.c @@ -49,6 +49,9 @@ components will be simplified. The returned value will be allocated using #ifdef HAVE_STRING_H #include <string.h> #endif +#ifdef HAVE_FCNTL_H +#include <fcntl.h> +#endif /* On GNU libc systems the declaration is only visible with _GNU_SOURCE. */ #if defined(HAVE_CANONICALIZE_FILE_NAME) \ @@ -155,3 +158,16 @@ lrealpath (const char *filename) /* This system is a lost cause, just duplicate the filename. */ return strdup (filename); } + +/* Return true when FD file descriptor exists. */ + +int +is_valid_fd (int fd) +{ +#if defined(_WIN32) + HANDLE h = (HANDLE) _get_osfhandle (fd); + return h != (HANDLE) -1; +#else + return fcntl (fd, F_GETFD) >= 0; +#endif +} |