Make getauxval() work in .preinit_array. It still won't be usable for
ifuncs unless we can guarantee that the __loader_shared_globals relocation
is resolved before the ifunc calls [__bionic_]getauxval.
Define __bionic_getauxval for use in replacing calls to
KernelArgumentBlock::getauxval, which doesn't (and sometimes isn't allowed
to) access TLS variables like errno.
Bug: http://b/25751302
Test: bionic unit tests
Change-Id: I461feeaed7f43cfa2a2b6c34147194f0df82b516
Merged-In: I461feeaed7f43cfa2a2b6c34147194f0df82b516
(cherry picked from commit bdab4a2b97)
Split __libc_init_main_thread into __libc_init_main_thread_early and
__libc_init_main_thread_late. The early function is called very early in
the startup of the dynamic linker and static executables. It initializes
the global auxv pointer and enough TLS memory to do system calls, access
errno, and run -fstack-protector code (but with a zero cookie because the
code for generating a cookie is complex).
After the linker is relocated, __libc_init_main_thread_late finishes
thread initialization.
Bug: none
Test: bionic unit tests
Change-Id: I6fcd8d7587a380f8bd649c817b40a3a6cc1d2ee0
Merged-In: I6fcd8d7587a380f8bd649c817b40a3a6cc1d2ee0
(cherry picked from commit 39bc44bb0e)
Remove the linker's reliance on BSD cruft and use the glibc-style
ElfW macro. (Other code too, but the linker contains the majority
of the code that needs to work for Elf32 and Elf64.)
All platforms need dl_iterate_phdr_static, so it doesn't make sense
to have that part of the per-architecture configuration.
Bug: 12476126
Change-Id: I1d7f918f1303a392794a6cd8b3512ff56bd6e487
Both libc/include/sys/auxv.h and libc/private/bionic_auxv.h
use _SYS_AUXV_H_ to see if a header file has already been included.
This prevents both of these files from being included at the same
time.
Fix this name conflict.
Change-Id: Ifaec88aa9779d784b95f8e75145117acf3d5cfc5
