glibc/sysdeps/unix/sysv/linux/sh/Versions
Florian Weimer c44838ebf8 Add libc ABI extension kludge for baseline-violating libdl symbols
Some targets have a GLIBC_2.0 baseline for libdl, while using
GLIBC_2.2 for libc.  This means that the generated libc.map file
does not have any version nodes for GLIBC_2.0 or GLIBC_2.1.  However,
moving symbols from libdl into libc needs such version nodes.
(Future symbol moves from librt will need this as well.)

This kludge is only necessary for symbols predating GLIBC_2.2 because
the affected targets use GLIBC_2.2 as the baseline for libc.  Given
the small number and fixed set of affected architectures, no generic
mechanism is implemented, and instead the map file fragment is
hard-coded in scripts/versions.mk.

The compat_symbol macro already emits the appropriate version strings,
so no adjustments are needed there.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-06-02 07:34:24 +02:00

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!libc_pre_versions
libc {
GLIBC_2.2 {
# functions used in other libraries
__xstat64; __fxstat64; __lxstat64;
# a*
alphasort64;
# g*
glob64;
# New rlimit interface
getrlimit; setrlimit; getrlimit64;
# r*
readdir64; readdir64_r;
# s*
scandir64;
# v*
versionsort64;
}
GLIBC_2.11 {
fallocate64;
}
GLIBC_2.16 {
fanotify_mark;
}
}