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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-11-04 16:02:52 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-11-08 13:37:06 -0300 |
| commit | 2e274cd8c1ebd0bd0c43a7f2e5433685740938ca (patch) | |
| tree | ac3f69747db62b0444960f54f559e0d5359fac69 /include | |
| parent | 19934d629ee22bbd332f04da4320e4f624c9560c (diff) | |
| download | glibc-2e274cd8c1ebd0bd0c43a7f2e5433685740938ca.tar.gz glibc-2e274cd8c1ebd0bd0c43a7f2e5433685740938ca.tar.xz glibc-2e274cd8c1ebd0bd0c43a7f2e5433685740938ca.zip | |
Linux: Add ppoll fortify symbol for 64 bit time_t (BZ# 29746)
Similar to ppoll, the poll.h header needs to redirect the poll call to a proper fortified ppoll with 64 bit time_t support. The implementation is straightforward, just need to add a similar check as __poll_chk and call the 64 bit time_t ppoll version. The debug fortify tests are also extended to cover 64 bit time_t for affected ABIs. Unfortunately it requires an aditional symbol, which makes backport tricky. One possibility is to add a static inline version if compiler supports is and call abort instead of __chk_fail, so fortified version will call __poll64 in the end. Another possibility is to just remove the fortify support for _TIME_BITS=64. Checked on i686-linux-gnu.
Diffstat (limited to 'include')
| -rw-r--r-- | include/sys/poll.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/sys/poll.h b/include/sys/poll.h index f904e21f89..228704fe79 100644 --- a/include/sys/poll.h +++ b/include/sys/poll.h @@ -2,13 +2,16 @@ # include <io/sys/poll.h> #ifndef _ISOMAC +#include <include/struct___timespec64.h> + extern int __poll (struct pollfd *__fds, unsigned long int __nfds, int __timeout); libc_hidden_proto (__poll) libc_hidden_proto (ppoll) # if __TIMESIZE == 64 -# define __ppoll64 __ppoll +# define __ppoll64 ppoll +# define __ppoll64_chk __ppoll_chk # else # include <time.h> # include <signal.h> |