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| author | Florian Weimer <fweimer@redhat.com> | 2022-04-11 11:30:31 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2022-04-22 10:59:03 +0200 |
| commit | 198abcbb94618730dae1b3f4393efaa49e0ec8c7 (patch) | |
| tree | 80c663ec8c907fe0c25d83e3fac5362bc4424ecb /manual/install.texi | |
| parent | 30035d67728a846fa39749cd162afd278ac654c4 (diff) | |
| download | glibc-198abcbb94618730dae1b3f4393efaa49e0ec8c7.zip glibc-198abcbb94618730dae1b3f4393efaa49e0ec8c7.tar.gz glibc-198abcbb94618730dae1b3f4393efaa49e0ec8c7.tar.bz2 | |
Default to --with-default-link=no (bug 25812)
This is necessary to place the libio vtables into the RELRO segment.
New tests elf/tst-relro-ldso and elf/tst-relro-libc are added to
verify that this is what actually happens.
The new tests fail on ia64 due to lack of (default) RELRO support
inbutils, so they are XFAILed there.
Diffstat (limited to 'manual/install.texi')
| -rw-r--r-- | manual/install.texi | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/manual/install.texi b/manual/install.texi index 29c52f2..fcfb690 100644 --- a/manual/install.texi +++ b/manual/install.texi @@ -117,6 +117,12 @@ problem and suppress these constructs, so that the library will still be usable, but functionality may be lost---for example, you can't build a shared libc with old binutils. +@item --with-default-link=@var{FLAG} +With @code{--with-default-link=yes}, the build system does not use a +custom linker script for linking shared objects. The default for +@var{FLAG} is the opposite, @samp{no}, because the custom linker script +is needed for full RELRO protection. + @item --with-nonshared-cflags=@var{cflags} Use additional compiler flags @var{cflags} to build the parts of the library which are always statically linked into applications and |