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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-01-24 10:46:17 -0300 |
|---|---|---|
| committer | Carlos O'Donell <carlos@redhat.com> | 2022-03-29 17:02:31 -0400 |
| commit | 1d1466e7c45a557e2426c650d6fab3c1b80162ec (patch) | |
| tree | 3d27d3ebcb691afcd2b05a3e6a37099c4b2176d5 /elf/tst-glibc-hwcaps-cache.c | |
| parent | e798a21fef1571bde6a3db549c68e33a5d781a3e (diff) | |
| download | glibc-1d1466e7c45a557e2426c650d6fab3c1b80162ec.tar.gz glibc-1d1466e7c45a557e2426c650d6fab3c1b80162ec.tar.xz glibc-1d1466e7c45a557e2426c650d6fab3c1b80162ec.zip | |
elf: Issue la_symbind for bind-now (BZ #23734)
The audit symbind callback is not called for binaries built with -Wl,-z,now or when LD_BIND_NOW=1 is used, nor the PLT tracking callbacks (plt_enter and plt_exit) since this would change the expected program semantics (where no PLT is expected) and would have performance implications (such as for BZ#15533). LAV_CURRENT is also bumped to indicate the audit ABI change (where la_symbind flags are set by the loader to indicate no possible PLT trace). To handle powerpc64 ELFv1 function descriptor, _dl_audit_symbind requires to know whether bind-now is used so the symbol value is updated to function text segment instead of the OPD (for lazy binding this is done by PPC64_LOAD_FUNCPTR on _dl_runtime_resolve). Checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu, powerpc64-linux-gnu. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com> (cherry picked from commit 32612615c58b394c3eb09f020f31310797ad3854) Resolved conflicts: NEWS
Diffstat (limited to 'elf/tst-glibc-hwcaps-cache.c')
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