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056fc1c0e3
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
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| .. | ||
| bits | ||
| fpu | ||
| nofpu | ||
| nptl | ||
| power4 | ||
| power6 | ||
| powerpc32 | ||
| powerpc64 | ||
| sys/platform | ||
| abort-instr.h | ||
| atomic-machine.h | ||
| cpu-features.c | ||
| cpu-features.h | ||
| dl-lookupcfg.h | ||
| dl-procinfo.c | ||
| dl-procinfo.h | ||
| dl-tls.c | ||
| dl-tls.h | ||
| dl-tunables.list | ||
| elf-initfini.h | ||
| ffs.c | ||
| fpu_control.h | ||
| gccframe.h | ||
| hwcapinfo.c | ||
| hwcapinfo.h | ||
| ifunc-sel.h | ||
| jmpbuf-offsets.h | ||
| jmpbuf-unwind.h | ||
| ldsodefs.h | ||
| libc-tls.c | ||
| locale-defines.sym | ||
| longjmp.c | ||
| machine-gmon.h | ||
| Makefile | ||
| math-tests-snan-cast.h | ||
| memusage.h | ||
| mod-cache-ppc.c | ||
| mod-tlsopt-powerpc.c | ||
| mp_clz_tab.c | ||
| novmx-longjmp.c | ||
| novmx-sigjmp.c | ||
| novmxsetjmp.h | ||
| preconfigure | ||
| preconfigure.ac | ||
| rtld-global-offsets.sym | ||
| sigjmp.c | ||
| sotruss-lib.c | ||
| stackinfo.h | ||
| sysdep.h | ||
| test-arith.c | ||
| test-arithf.c | ||
| test-get_hwcap-static.c | ||
| test-get_hwcap.c | ||
| test-gettimebase.c | ||
| tls-macros.h | ||
| tst-cache-ppc-static-dlopen.c | ||
| tst-cache-ppc-static.c | ||
| tst-cache-ppc.c | ||
| tst-set_ppr.c | ||
| tst-stack-align.h | ||
| tst-tlsifunc-static.c | ||
| tst-tlsifunc.c | ||
| tst-tlsopt-powerpc.c | ||
| Versions | ||