diff options
| author | Tom Tromey <tom@tromey.com> | 2018-09-20 16:04:04 -0600 |
|---|---|---|
| committer | Tom Tromey <tom@tromey.com> | 2018-10-27 11:58:41 -0600 |
| commit | b3279b601e67ce47263082ef86cfc86e25607c5e (patch) | |
| tree | 3541a773fd698068cad1ae16a2842257c845eb61 /gdb/dwarf-index-write.c | |
| parent | e418a61a67a3476826259163383e5deb661042cc (diff) | |
| download | gdb-b3279b601e67ce47263082ef86cfc86e25607c5e.zip gdb-b3279b601e67ce47263082ef86cfc86e25607c5e.tar.gz gdb-b3279b601e67ce47263082ef86cfc86e25607c5e.tar.bz2 | |
Use mkostemp, not mkstemp
I noticed that gdb could leak file descriptors coming from mkstemp.
This patch fixes the problem by importing the gnulib mkostemp instead,
and then changing gdb to pass O_CLOEXEC.
A small gnulib patch was needed. This has already been accepted
upstream.
gdb/ChangeLog
2018-10-27 Tom Tromey <tom@tromey.com>
* unittests/scoped_mmap-selftests.c (test_normal): Use
gdb_mkostemp_cloexec.
* unittests/scoped_fd-selftests.c (test_destroy, test_release):
Use gdb_mkostemp_cloexec.
* gnulib/aclocal-m4-deps.mk, gnulib/aclocal.m4,
gnulib/config.in, gnulib/configure,
gnulib/import/Makefile.am, gnulib/import/Makefile.in,
gnulib/import/m4/gnulib-cache.m4,
gnulib/import/m4/gnulib-comp.m4: Update.
* gnulib/import/m4/mkostemp.m4: New file.
* gnulib/import/m4/mkstemp.m4: Remove.
* gnulib/import/mkostemp.c: New file.
* gnulib/import/mkstemp.m4: Remove.
* gnulib/update-gnulib.sh (IMPORTED_GNULIB_MODULES): Remove
mkstemp, add mkostemp. Apply new patch.
* gnulib/import/stdlib.in.h: Apply patch.
* gnulib/patches/0002-mkostemp-mkostemps-Fix-compilation-error-in-C-mode-o.patch:
New file.
* dwarf-index-write.c (write_psymtabs_to_index): Use
gdb_mkostemp_cloexec.
* common/filestuff.h (gdb_mkostemp_cloexec): New function.
Diffstat (limited to 'gdb/dwarf-index-write.c')
| -rw-r--r-- | gdb/dwarf-index-write.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gdb/dwarf-index-write.c b/gdb/dwarf-index-write.c index 4335c39..e07bda9 100644 --- a/gdb/dwarf-index-write.c +++ b/gdb/dwarf-index-write.c @@ -1567,7 +1567,7 @@ write_psymtabs_to_index (struct dwarf2_per_objfile *dwarf2_per_objfile, gdb::char_vector filename_temp = make_temp_filename (filename); gdb::optional<scoped_fd> out_file_fd - (gdb::in_place, mkstemp (filename_temp.data ())); + (gdb::in_place, gdb_mkostemp_cloexec (filename_temp.data (), O_BINARY)); if (out_file_fd->get () == -1) perror_with_name (("mkstemp")); @@ -1591,7 +1591,8 @@ write_psymtabs_to_index (struct dwarf2_per_objfile *dwarf2_per_objfile, gdb::char_vector filename_str_temp = make_temp_filename (filename_str); gdb::optional<scoped_fd> out_file_str_fd - (gdb::in_place, mkstemp (filename_str_temp.data ())); + (gdb::in_place, gdb_mkostemp_cloexec (filename_str_temp.data (), + O_BINARY)); if (out_file_str_fd->get () == -1) perror_with_name (("mkstemp")); |