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| author | Florian Weimer <fweimer@redhat.com> | 2021-06-02 07:32:19 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2021-06-02 07:34:24 +0200 |
| commit | c44838ebf8b8da0795d56e05b477c5d2b37b4a19 (patch) | |
| tree | c1dc4f38603b4b09748ae2bf334022109279c234 /sysdeps | |
| parent | d32ee64df750c2a1ebfffaccc1c02251a73d0532 (diff) | |
| download | glibc-c44838ebf8b8da0795d56e05b477c5d2b37b4a19.zip glibc-c44838ebf8b8da0795d56e05b477c5d2b37b4a19.tar.gz glibc-c44838ebf8b8da0795d56e05b477c5d2b37b4a19.tar.bz2 | |
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>
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/unix/sysv/linux/hppa/Versions | 1 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/ia64/Versions | 1 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sh/Versions | 1 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sparc/sparc64/Versions | 1 |
4 files changed, 4 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/hppa/Versions b/sysdeps/unix/sysv/linux/hppa/Versions index 9532d20..357c68a 100644 --- a/sysdeps/unix/sysv/linux/hppa/Versions +++ b/sysdeps/unix/sysv/linux/hppa/Versions @@ -1,3 +1,4 @@ +!libc_pre_versions libc { GLIBC_2.1 { _sys_errlist; sys_errlist; _sys_nerr; sys_nerr; diff --git a/sysdeps/unix/sysv/linux/ia64/Versions b/sysdeps/unix/sysv/linux/ia64/Versions index 54e7723..f438b12 100644 --- a/sysdeps/unix/sysv/linux/ia64/Versions +++ b/sysdeps/unix/sysv/linux/ia64/Versions @@ -1,3 +1,4 @@ +!libc_pre_versions libc { GLIBC_2.2 { ioperm; iopl; diff --git a/sysdeps/unix/sysv/linux/sh/Versions b/sysdeps/unix/sysv/linux/sh/Versions index 19ba1d8..9c734ff 100644 --- a/sysdeps/unix/sysv/linux/sh/Versions +++ b/sysdeps/unix/sysv/linux/sh/Versions @@ -1,3 +1,4 @@ +!libc_pre_versions libc { GLIBC_2.2 { # functions used in other libraries diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/Versions b/sysdeps/unix/sysv/linux/sparc/sparc64/Versions index fbea1bb..33b6779 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc64/Versions +++ b/sysdeps/unix/sysv/linux/sparc/sparc64/Versions @@ -1,3 +1,4 @@ +!libc_pre_versions libc { GLIBC_2.0 { # Exception handling support functions from libgcc |