| commit | 3020f72618e4f1d7338cd42b8bc7b2813e961b5a | |
| author | Adhemerval Zanella Netto <adhemerval.zanella@linaro.org> | |
| Tue, 27 Dec 2022 21:11:43 +0000 (27 18:11 -0300) | ||
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | |
| Mon, 27 Mar 2023 16:57:55 +0000 (27 13:57 -0300) | ||
| tree | d61cc39cb5aa140de5331cd1a2ba6ab796db0c81 | treesnapshot (tar.gz zip) |
| parent | f65ca70deaf38db4ca12458e74cefd8ad9063956 | commitdiff |
libio: Remove the usage of __libc_IO_vtables
Instead of using a special ELF section along with a linker script
directive to put the IO vtables within the RELRO section, the libio
vtables are all moved to an array marked as data.relro (so linker
will place in the RELRO segment without the need of extra directives).
To avoid static linking namespace issues and including all vtable
referenced objects, all required function pointers are set to weak alias.
Checked on x86_64-linux-gnu, i686-linux-gnu, and aarch64-linux-gnu.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Instead of using a special ELF section along with a linker script
directive to put the IO vtables within the RELRO section, the libio
vtables are all moved to an array marked as data.relro (so linker
will place in the RELRO segment without the need of extra directives).
To avoid static linking namespace issues and including all vtable
referenced objects, all required function pointers are set to weak alias.
Checked on x86_64-linux-gnu, i686-linux-gnu, and aarch64-linux-gnu.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
22 files changed: