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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 | ||
nptl | ||
_mcount.S | ||
abort-instr.h | ||
atomic-machine.h | ||
bcopy.S | ||
bzero.S | ||
configure | ||
configure.ac | ||
crti.S | ||
crtn.S | ||
dl-dtprocnum.h | ||
dl-fptr.h | ||
dl-lookupcfg.h | ||
dl-machine.h | ||
dl-sysdep.h | ||
dl-tls.h | ||
dl-trampoline.S | ||
elf-initfini.h | ||
entry.h | ||
float128-abi.h | ||
gccframe.h | ||
hp-timing.h | ||
htonl.S | ||
htons.S | ||
ia64libgcc.S | ||
ieee754.h | ||
Implies | ||
jmpbuf-unwind.h | ||
ldbl2mpn.c | ||
ldsodefs.h | ||
libc-symver.h | ||
libc-tls.c | ||
linkmap.h | ||
machine-gmon.h | ||
Makeconfig | ||
Makefile | ||
math-tests-snan.h | ||
memccpy.S | ||
memchr.S | ||
memcmp.S | ||
memcpy.S | ||
memmove.S | ||
memset.S | ||
memusage.h | ||
softpipe.h | ||
sotruss-lib.c | ||
stackguard-macros.h | ||
stackinfo.h | ||
start.S | ||
strchr.S | ||
strcmp.S | ||
strcpy.S | ||
strlen.S | ||
strncmp.S | ||
strncpy.S | ||
sysdep.h | ||
tininess.h | ||
tls-macros.h | ||
tst-audit.h | ||
unwind-arch.h | ||
unwind-resume.c | ||
Versions |