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authorAdhemerval Zanella Netto <adhemerval.zanella@linaro.org>2022-12-27 18:11:43 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2023-03-27 13:57:55 -0300
commit3020f72618e4f1d7338cd42b8bc7b2813e961b5a (patch)
treed61cc39cb5aa140de5331cd1a2ba6ab796db0c81 /libio/strfile.h
parentf65ca70deaf38db4ca12458e74cefd8ad9063956 (diff)
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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>
Diffstat (limited to 'libio/strfile.h')
-rw-r--r--libio/strfile.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/libio/strfile.h b/libio/strfile.h
index c50b34abd1..f21100f963 100644
--- a/libio/strfile.h
+++ b/libio/strfile.h
@@ -78,8 +78,6 @@ typedef struct
   wchar_t overflow_buf[64];
 } _IO_wstrnfile;
 
-extern const struct _IO_jump_t _IO_wstrn_jumps attribute_hidden;
-
 /* Initialize an _IO_strfile SF to read from narrow string STRING, and
    return the corresponding FILE object.  It is not necessary to fclose
    the FILE when it is no longer needed.  */