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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2022-11-04 16:02:52 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2022-11-08 13:37:06 -0300
commit2e274cd8c1ebd0bd0c43a7f2e5433685740938ca (patch)
treeac3f69747db62b0444960f54f559e0d5359fac69 /sysdeps/unix/sysv/linux/microblaze/le
parent19934d629ee22bbd332f04da4320e4f624c9560c (diff)
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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 'sysdeps/unix/sysv/linux/microblaze/le')
-rw-r--r--sysdeps/unix/sysv/linux/microblaze/le/libc.abilist1
1 files changed, 1 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
index 8c5b2db243..37178c503f 100644
--- a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
@@ -2715,3 +2715,4 @@ GLIBC_2.36 pidfd_open F
 GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.36 process_madvise F
 GLIBC_2.36 process_mrelease F
+GLIBC_2.37 __ppoll64_chk F