diff options
| author | Lewis Hyatt <lhyatt@gmail.com> | 2023-09-15 13:31:51 -0400 |
|---|---|---|
| committer | Lewis Hyatt <lhyatt@gmail.com> | 2023-09-20 16:44:24 -0400 |
| commit | 601dbf2a799f691688dfe78250b5bea2717b5b5e (patch) | |
| tree | b5309aa08914667b85299fe105b7c5881910a495 /libgcc | |
| parent | b512d705797a65dbfe3a9ad100218192c7528b02 (diff) | |
| download | gcc-601dbf2a799f691688dfe78250b5bea2717b5b5e.zip gcc-601dbf2a799f691688dfe78250b5bea2717b5b5e.tar.gz gcc-601dbf2a799f691688dfe78250b5bea2717b5b5e.tar.bz2 | |
libcpp: Fix ICE on #include after a line marker directive [PR61474]
As noted in the PR, GCC will segfault if a file name is first seen in a
linemarker directive, and then later seen in a normal #include. This is
because the fake include process adds the file to the cache with a null PATH
member. The normal #include finds this file in the cache and then attempts
to use the null PATH. Resolve by adding the file to the cache with a unique
starting directory, so that the fake entry will only be found by a
subsequent fake include, not by a real one.
libcpp/ChangeLog:
PR preprocessor/61474
* files.cc (_cpp_find_file): Set DONT_READ to TRUE for fake
include files.
(_cpp_fake_include): Pass a unique cpp_dir* address so
the fake file will not be found when looked up for real.
gcc/testsuite/ChangeLog:
PR preprocessor/61474
* c-c++-common/cpp/pr61474-2.h: New test.
* c-c++-common/cpp/pr61474.c: New test.
* c-c++-common/cpp/pr61474.h: New test.
Diffstat (limited to 'libgcc')
0 files changed, 0 insertions, 0 deletions