| History log of /src/libexec/ld.elf_so/rtld.c |
| Revision | | Date | Author | Comments |
| 1.221 |
| 02-May-2025 |
riastradh | ld.elf_so: Narrow scope of -Wno-stack-protector.
Don't need it outside immediate _rtld_donelist_init callers.
PR lib/59388: ld.elf_so: -Wno-stack-protector applies too broadly
|
| 1.220 |
| 18-Apr-2025 |
riastradh | ld.elf_so: Call _rtld_die if relro fails; don't return -1.
Returning -1 was a pasto from where the original _rtld_relro call
came from, in _rtld_do_copy_relocations.
PR lib/57792: SIGSEGV in ld.elf_so / _rtld_call_ifunc
|
| 1.219 |
| 18-Apr-2025 |
riastradh | ld.elf_so(1): Defer RELRO a bit for eagerly-bound (-z now) programs.
GNU binutils links programs a little differently if they're eagerly
bound with -Wl,-z,now. In particular, the part of the .got relocated
for ifuncs is covered by the RELRO region in eagerly-bound programs
(-z now), but not in lazily-bound programs (default).
Presumably this is done under the premise that eagerly-bound programs
will resolve all ifuncs at startup _before_ mprotecting the main
object's RELRO region. But ld.elf_so was mprotecting it first, in
_rtld_do_copy_relocations, and then resolving ifuncs -- at which the
memory locations where it tries to write the resolutions will be
mapped read-only.
(In contrast, for lazily bound programs, ifuncs may also be resolved
lazily, so the locations they relocate are _not_ covered by the RELRO
region and we don't run into any trouble)
To avoid this trouble, for eagerly-bound programs, we defer the RELRO
mprotect of the main object by a little bit -- we move it from
_rtld_do_copy_relocations to just after _rtld_call_init_functions.
PR lib/57792: SIGSEGV in ld.elf_so / _rtld_call_ifunc
|
| 1.218 |
| 31-Jan-2025 |
christos | Prefer the kernel passed exec name as opposed to argv[0] for the main object
name, if available. This is more useful because it is an absolute path
and more consistent.
|
| 1.217 |
| 19-Jan-2024 |
christos | branches: 1.217.2;
use header decl of __fork()
|
| 1.216 |
| 03-Oct-2023 |
martin | PR 57628: at the end of _rtld_init() explicitly initialize the ld.elf_so
local copy of the atomic access support functions for machines that do not
implement all required ops in hardware (like 32bit sparc).
XXX would be better to figure out a way to share this copy with libc
(thereby using half as many RAS sections). But even if we would share it,
we have to init it early enough for ld.elf_so internal uses.
|
| 1.215 |
| 30-Jul-2023 |
riastradh | ld.elf_so: Split hash functions into a separate file.
This way we can test them in isolation.
No functional change intended.
|
| 1.214 |
| 04-Jun-2023 |
riastradh | ld.elf_so: Sprinkle more debug messages on dlopen and error.
PR pkg/57445
|
| 1.213 |
| 23-Apr-2023 |
riastradh | dlopen(3): Read _rtld_objtail under the lock.
XXX pullup-8
XXX pullup-9
XXX pullup-10
|
| 1.212 |
| 13-Sep-2022 |
riastradh | branches: 1.212.2;
ld.elf_so(8): Make fork take a shared, not exclusive, lock.
We only need to ensure that there are no concurrent modifications to
the rtld data structures in flight, since the threads that began
those modifications will not exist in the child and will therefore be
unable to complete them in the child.
A shared lock suffices to ensure there are no such concurrent
modifications in flight; an exclusive lock is not necessary, and can
cause deadlock if fork is executed from a signal handler, which is
explicitly allowed by POSIX (and our own sigaction(2) man page) which
marks fork as async-signal-safe.
PR lib/56979
|
| 1.211 |
| 09-Apr-2022 |
riastradh | rtld: Convert membar_exit/enter to membar_release/acquire.
These are basic CAS-based locking primitives needing release and
acquire semantics, nothing fancy here -- except the membar_sync parts
which are questionable but not relevant to the present audit.
|
| 1.210 |
| 04-Dec-2021 |
skrll | Restore the fptr_t type of {init,fini}{,_array} that was removed when initial
support for indirect functions was added. This fixes {init,fini}_array support
on hppa where each member of the array is (already) a plabel.
Discussed with joerg.
4 files changed, 29 insertions(+), 39 deletions(-)
: ----------------------------------------------------------------------
|
| 1.209 |
| 16-Jun-2021 |
riastradh | ld.elf_so(1): Omit needless membar_enter.
The use of membar_enter is to separate atomic r/m/w on a lock from
the body of the critical section so two different critical sections
happen in order:
body of previous critical section;
exit critical section:
membar_exit();
atomic_r/m/w(lock stuff);
enter critical section:
atomic_r/m/w(lock stuff);
membar_enter();
body of next critical section;
_rtld_shared_enter does this, but it _also_ issued an extraneous
membar_enter before the atomic_r/m/w part, which doesn't impose any
semantically important order but may cost some performance.
|
| 1.208 |
| 30-May-2021 |
joerg | Don't use the return address hack with clang.
|
| 1.207 |
| 22-Sep-2020 |
kamil | branches: 1.207.2;
Correct r_ldbase valuse
It shall be the relocbase value, not linkmap.
|
| 1.206 |
| 21-Sep-2020 |
kamil | Upgrade the SVR4 RTLD r_debug protocol to version 1
Changes:
- Add a new field r_ldbase in the r_debug struct.
- Set r_version to 1.
This harmonizes the support with OpenBSD and Linux.
FreeBSD uses version 0 (or no version).
Solaris uses version 2 that is not implemented elsewhere and relies on
SVR4 specific design and interfaces.
Update the code comments as r_debug and link_map is used by other software
than GDB, namely: sanitizers, rump, LLDB.
|
| 1.205 |
| 19-Apr-2020 |
joerg | Rename __atomic_fork to __locked_fork and give it &errno as argument.
rtld and libc use different storage, so the initial version would
incorrectly report the failure reason for fork().
There is still a small race condition inside ld.elf_so as it doesn't use
thread-safe errno internally, but that's a more contained internal
issue.
|
| 1.204 |
| 16-Apr-2020 |
joerg | Introduce intermediate locking for fork, so that the dynamic linker is
in a consistent state. This most importantly avoids races between dlopen
and friends and fork, potentially resulting in dead locks in the child
when it itself tries to acquire locks.
|
| 1.203 |
| 04-Mar-2020 |
thorpej | PT_GNU_RELRO segments are arranged such that their vaddr + memsz ends
on a linker common page size boundary. However, if the common page size
used by the linker is less than the VM page size being used by the kernel,
this can end up in the middle of a VM page and when the region is write-
protected, this can cause objects in neighboring .data to get incorrectly
write-protected, resulting in a crash.
Avoid this situation by calculating the end of the RELRO region not by
rounding memsz up to the VM page size, but rather by adding vaddr + memsz
and then truncating to the VM page size.
Fixes PR toolchain/55043.
XXX pullup-9
|
| 1.202 |
| 29-Feb-2020 |
kamil | Implement and integrate GNU Hashing function
Define Elf_Hash struct that contains ELF/SYSV and GNU hash checksum.
Implement _rtld_gnu_hash() for DT_GNU_HASH.
Adapt existing code to compute all Elf_Hash types, instead of only
the ELF/SYSV one.
Rename _rtld_elf_hash() to _rtld_sysv_hash() to match the GNU toolchain
terminology.
_rtld_gnu_hash() uses Dan Bernstein's string hash function posted eons ago
on comp.lang.c.
|
| 1.201 |
| 08-Dec-2019 |
uwe | _rtld_relro - fix debug printf format for a size_t argument
|
| 1.200 |
| 04-Oct-2019 |
christos | use __func__ (c99, c++11) instead of __FUNCTION__
|
| 1.199 |
| 03-Oct-2019 |
tnn | improve error message
|
| 1.198 |
| 15-Sep-2019 |
kamil | Return the ELF loader dl_phdr_info information for dl_iterate_phdr(3)
Sync the behavior of dl_iterate_phdr(3) with Linux/FreeBSD/OpenBSD.
|
| 1.197 |
| 14-Apr-2019 |
christos | branches: 1.197.2;
undo previous unlock/relock; it is not needed now that we added the tls model
declaration to all externs in jemalloc (suggested by joerg@)
|
| 1.196 |
| 13-Apr-2019 |
christos | Fix c++ exceptions on arm; jemalloc calls _rtld_tls_get_addr from inside
dl_iterate_phdr, so we need to unlock and relock.
|
| 1.195 |
| 30-Dec-2018 |
christos | binutils 2.31.1 can put copy relocations in the relro segment. Delay
protecting the relro segment for the main object until copy relocations
are done.
|
| 1.194 |
| 27-Dec-2018 |
christos | explain why we skip objmain.
|
| 1.193 |
| 17-Oct-2018 |
joerg | Move compatibility for pre-2.0 ELF binaries into separate file.
Early ELF binaries defined dlopen and friends in crt0.o by
using function pointers in the object handle passed from rtld.
This contract wastes space when many shared objects are allocated
and ties dynamic linker and rest of the system tightly together.
Fake the entry points in a static object and restrict them to the
platforms that had working ELF support at the time. Keep the magic and
version field used by modern crt0.o for all architectures. The checks
will be removed from crt0.o in a follow-up step.
|
| 1.192 |
| 03-Apr-2018 |
joerg | branches: 1.192.2;
Rework ifunc support to address a number of short comings:
- Move to a shared _rtld_call_ifunc for rel and rela architectures
- Architectures using rel format must patch IRELATIVE non-PLT
relocations like RELATIVE in additition to the later ifunc handling
- Consistently record the delta to the end of the relocation group for
non-PLT IRELATIVE relocations
Hidden ifunc is now supported on all ifunc platforms, even when using
-fno-plt. The combination of -fno-plt and relro is broken due to
incorrect GNU ld output though.
|
| 1.191 |
| 09-Mar-2018 |
joerg | Like Sparc, PowerPC can use IRELATIVE relocations in non-PLT sections.
|
| 1.190 |
| 11-Feb-2018 |
jakllsch | branches: 1.190.2;
Wrap PowerPC #pragma goop in #if __GNUC_PREREQ__(6,0).
Our older GCC warns/errors on it.
|
| 1.189 |
| 07-Feb-2018 |
mrg | update for GCC 6:
ignore -Wframe-address warnings for the ppc hack.
|
| 1.188 |
| 06-Nov-2017 |
joerg | init/fini for the main program is handled by crt0.o, so ifunc handling
is skipped right now as it iterates the same list. Don't repeat that
mistake and explicitly take care of it in the dynamic linker.
|
| 1.187 |
| 12-Aug-2017 |
joerg | Add sparc/sparc64 support for irelative relocations.
|
| 1.186 |
| 10-Aug-2017 |
joerg | Add IRELATIVE support for ARM, X86 and PowerPC.
|
| 1.185 |
| 11-Jul-2017 |
joerg | Implement __cxa_thread_atexit and __cxa_thread_atexit_impl. This
functions are used for destructors of thread_local objects.
If a pending destructor exists, prevent unloading of shared objects.
Introduce __dl_cxa_refcount interface for this purpose. When the last
reference is gone and the object has been dlclose'd before, the
unloading is finalized.
Ideally, __cxa_thread_atexit_impl wouldn't exist, but libstdc++ insists
on providing __cxa_thread_atexit as direct wrapper without further
patching.
|
| 1.184 |
| 08-Jun-2017 |
joerg | Call _rtld_debug_state before running the global initialisers, so give
gdb a chance to set break points etc.
|
| 1.183 |
| 27-Feb-2017 |
chs | branches: 1.183.4;
tag the powerpc hackish_return_address() as __noinline.
|
| 1.182 |
| 01-Dec-2016 |
christos | branches: 1.182.2;
n dl_iterate_phdr return the path not the name.
|
| 1.181 |
| 01-Dec-2016 |
christos | Instead of using a function to resolve symbols that should be supplied by
the dynamic linker itself, use a version script that exposes them. From joerg@
|
| 1.180 |
| 30-Nov-2016 |
christos | add missing newline in comment
|
| 1.179 |
| 30-Nov-2016 |
christos | Emulate the standard symbol search order in dlsym() i.e. resolve weak or
not found symbols that are in the dynamic linker list of exported symbols
from the dynamic linker itself.
|
| 1.178 |
| 24-May-2016 |
christos | branches: 1.178.2;
Put the name of the dynamic linker in allocated memory, so that it becomes
part of the core file link-map, so that gdb can find it.
|
| 1.177 |
| 06-Apr-2015 |
yamt | Fix membars around rtld internal mutex.
This fixes the most of lockups i observed with Open vSwitch
on NetBSD/amd64. ("most of" because it still occasionally
locks up because of other problems. see PR/49816)
|
| 1.176 |
| 04-Apr-2015 |
joerg | lib/49813: Release mutex on error.
|
| 1.175 |
| 05-Mar-2015 |
skrll | HPPA hack for a problem where gdb doesn't see _rtld_debug_state when
it's a single bv,n %r0(%rp) instruction.
The nullify confuses something.
|
| 1.174 |
| 25-Aug-2014 |
joerg | Add basic support for indirect functions. It allows providing a public
function symbol with an implementation choosen at run time.
Refactor calls to functions by address in ld.elf_so to create temporary
function descriptors on the stack, if the address is not leaked outside.
Limitations:
- no support for initialising static storage with function pointers
- no support for unnamed resolver functions
Inspired by FreeBSD's r228435 by kib@freebsd.org.
|
| 1.173 |
| 18-Mar-2014 |
joerg | branches: 1.173.4;
Ignore LD_BIND_NOW for setuid binaries, but keep it in the environment
otherwise.
|
| 1.172 |
| 31-Jan-2014 |
joerg | Catch up with _lwp_park change.
|
| 1.171 |
| 20-Nov-2013 |
skrll | If dlopen of the dynamic linker is requested, e.g. by rump in
rumpuser_dl_bootstrap, then return &_rtld_objself as the handle and do
not create a duplicate mapping.
The handle is mostly useless as _rtld_objself doesn't appear on
_rtld_objlist.
This fixes a problem on earm platforms where ld.elf_so (currently) has
an init_array section. Calling this caused binaries to segv.
|
| 1.170 |
| 19-Oct-2013 |
christos | fix unused variable warnings
|
| 1.169 |
| 09-May-2013 |
skrll | Remove redundant assignment. Hasn't been needed since 1999.
|
| 1.168 |
| 09-May-2013 |
christos | remove stray debugging
|
| 1.167 |
| 09-May-2013 |
christos | convert to SIMPLEQ like the rest of the queues.
|
| 1.166 |
| 06-May-2013 |
christos | Fixed handling of DT_SONAME:
- add function to add name aliases for shared libraries loaded
XXX[1]: we don't add a name during load time, only when DT_SONAME
is present.
- search already loaded objects in load_by_name for an already
loaded object that matches our name and return it.
- add missing initialization and cleanup for obj->names
XXX[2]: should we make them SIMPLEQ?
- Add XXX in rtld.c about getting the name of an object.
NB: This makes the jdk work again without resorting to a hack of putting
the build path of libjvm.so into the run path (which is a security
problem).
XXX: Pullup-6?
|
| 1.165 |
| 06-May-2013 |
skrll | Trailing whitespace
|
| 1.164 |
| 06-May-2013 |
skrll | Disalble a debug only where it causes problems.
|
| 1.163 |
| 03-May-2013 |
matt | Remove dbg for _ctype_
|
| 1.162 |
| 02-May-2013 |
matt | Print out &_DYNAMIC too.
|
| 1.161 |
| 16-Dec-2012 |
dsl | Fix the other lwp_park() to pass 0 for the 'unpark' lwp.
|
| 1.160 |
| 16-Dec-2012 |
dsl | You need to pass 0 (not -1) to lwp_park() if you don't also
want to do an unpark.
Clearly this code path was never tested!
Needs pullup to netbsd-6
|
| 1.159 |
| 01-Oct-2012 |
riastradh | On failure in _rtld_dlcheck, call _rtld_error, not xwarnx.
Callers need not call _rtld_error themselves now.
Fixes PR lib/41760. Should add the test case from the PR too.
|
| 1.158 |
| 15-Aug-2012 |
matt | branches: 1.158.2;
Add .init_array/.fini_array support (conditionalized on HAVE_INITFINI_ARRAY).
|
| 1.157 |
| 13-Mar-2012 |
joerg | Mark _rtld_debug_state as not to be inlined. Add an explicit instruction
barrier to prevent removal of calls to it.
|
| 1.156 |
| 16-Feb-2012 |
joerg | Add _dlauxinfo helper function to provide access to the ELF auxilary
vector. This can normally be found via __ps_strings, but libc is
initialised too early when linked dynamically and doesn't have access to
it yet, so provide an alternative mechanism via ld.elf_so.
Bump libc minor.
|
| 1.155 |
| 25-Nov-2011 |
joerg | branches: 1.155.2; 1.155.4; 1.155.6;
Unbreak RTLD_NEXT and co on platforms that don't inline or tail call
do_dlsym.
|
| 1.154 |
| 17-Nov-2011 |
joerg | FreeBSD bug report 161344: TLS area for the main thread is set up to
early, if e.g. pointers to functions are used as initializers.
|
| 1.153 |
| 23-Oct-2011 |
christos | branches: 1.153.2;
Don't block SIGTRAP so that on architectures where the debugger needs to
be able to receive sigtrap for breakpoints to work, it can. For example
we are setting breakpoints inside dlopen(), after we've blocked the signal,
so the process keep trapping and looping over the trap instruction without
being able to send the signal. Another way would be to move the
_rtld_debug_state() calls outside the critical section...
|
| 1.152 |
| 13-Aug-2011 |
christos | disable debugging that makes us core dump
|
| 1.151 |
| 25-Jun-2011 |
nonaka | PR/45015: ld.elf_so: support ELF symbol versioning
Applied latest patch.
|
| 1.150 |
| 02-Apr-2011 |
joerg | Revert pthread_atfork related change not intended for commit yet.
|
| 1.149 |
| 02-Apr-2011 |
joerg | Unbreak HPPA
|
| 1.148 |
| 29-Mar-2011 |
joerg | Block signals when using the exclusive lock.
|
| 1.147 |
| 28-Mar-2011 |
joerg | Refine locking scheme around init/fini to not hold the exclusive lock.
Use a simple generation count instead and restart looking for work if it
changed (e.g. due to an dlopen call from an init function).
Leave the possible dlclose() race for now.
|
| 1.146 |
| 27-Mar-2011 |
joerg | exit, not enter
|
| 1.145 |
| 27-Mar-2011 |
joerg | Handle _rtld_exit as full entry point since other threads may still be
running at the time.
|
| 1.144 |
| 27-Mar-2011 |
joerg | Add some debug messages for explicit rtld entry points
|
| 1.143 |
| 27-Mar-2011 |
joerg | Locking around dlclose()
|
| 1.142 |
| 26-Mar-2011 |
joerg | Fix merge error that broke HPPA
|
| 1.141 |
| 25-Mar-2011 |
joerg | Add basic locking to ld.elf_so.
|
| 1.140 |
| 13-Mar-2011 |
joerg | Fill in TLS related fields in dl_iterate_phdr if TLS is supported
|
| 1.139 |
| 09-Mar-2011 |
joerg | Add TLS support infrastructure. For dynamic binaries, ld.elf_so exports
_rtld_tls_allocate and _rtld_tls_free. libpthread uses this functions to
setup the thread private area of all new threads. ld.elf_so is
responsible for setting up the private area for the initial thread.
Similar functions are called from _libc_init for static binaries, using
dl_iterate_phdr to access the ELF Program Header.
Add test cases to exercise the different TLS storage models. Test cases
are compiled and installed on all platforms, but are skipped on
platforms not marked for TLS support.
This material is based upon work partially supported by
The NetBSD Foundation under a contract with Joerg Sonnenberger.
It is inspired by the TLS support in FreeBSD by Doug Rabson and the
clean ups of the DragonFly port of the original FreeBSD modifications.
|
| 1.138 |
| 24-Feb-2011 |
pooka | make DEBUG compile without RTLD_DEBUG
|
| 1.137 |
| 24-Dec-2010 |
skrll | branches: 1.137.2;
Add support for DF_1_BIND_NOW, DF_1_NODELETE and DF_1_NOOPEN marked
objects, and the RTLD_NODELETE and RTLD_NOLOAD flags to dlopen(3).
Mark libpthread as DF_1_NOOPEN and use it to test the functionality.
Somewhat taken from FreeBSD.
Fixes PR 42029.
OK from christos and joerg.
|
| 1.136 |
| 19-Dec-2010 |
skrll | Sprinkle some KNF.
|
| 1.135 |
| 19-Dec-2010 |
skrll | Remove unnecessary #ifdef RTLD_DEBUG
|
| 1.134 |
| 16-Dec-2010 |
joerg | Don't use normal environment handling functions from libc, but iterate
once over the array and clean out entries as needed.
|
| 1.133 |
| 16-Dec-2010 |
skrll | s/rdbg/dbg/ in a few places.
|
| 1.132 |
| 29-Oct-2010 |
christos | PR/44010: YAMAMOTO Takashi: sbrk: grow 0xb3ba2000 failed, error = 12"
(due to setenv changes?)
Provide a mini unsetenv that does not allocate/free memory and does not
bother about locking.
|
| 1.131 |
| 16-Oct-2010 |
skrll | Implement dl_iterate_phdr.
Somewhat taken from FreeBSD. Manual page from OpenBSD.
|
| 1.130 |
| 18-Mar-2010 |
roy | Use alloca(3) instead of local xmalloc for creating our DoneLists.
This allows threaded programs to use us a little better, PR lib/43005.
We need to disable SSP when using alloca.
|
| 1.129 |
| 27-Feb-2010 |
roy | Implement negative cache checks for symbol lookups.
Uses the Donelist idea from FreeBSD.
|
| 1.128 |
| 10-Jan-2010 |
skrll | Fixup comment.
|
| 1.127 |
| 02-Dec-2009 |
christos | If the environment is corrupt, die. From FreeBSD.
|
| 1.126 |
| 17-Nov-2009 |
skrll | Make _rtld_pagesz of type size_t.
Fixes round_down for alpha which made ldd(1) break.
|
| 1.125 |
| 24-Sep-2009 |
pooka | Add Solarisa-like dlinfo() interface to the ELF dynamic linker.
Implement RTLD_DI_LINKMAP which returns a pointer to the linkmap
chain at the given object. Other Solaris queries are currently
unimplemented.
|
| 1.124 |
| 19-May-2009 |
christos | warns=4
|
| 1.123 |
| 26-Oct-2008 |
mrg | branches: 1.123.2; 1.123.8;
if LD32DIR is defined:
- look in src/compat/lib/libc for libc_pic.
- define RTLD_ARCH_SUBDIR to "i386" or "sparc" for amd64 and sparc64
builds, respectively
if RTLD_ARCH_SUBDIR is defined, add this path before
RTLD_DEFAULT_LIBRARY_PATH in the default search path.
|
| 1.122 |
| 04-Oct-2008 |
skrll | lib/39649: dlsym(3) does not follow dependencies
Pull across code from FreeBSD to do a search of the passed object and it's
NEEDED objects (dependencies).
Reviewed by gimpy.
|
| 1.121 |
| 27-Sep-2008 |
macallan | avoid usind __builtin_return_address(0) on PowerPC because it fails in
Xorg's module loader.
Should fix PR37812
|
| 1.120 |
| 24-Jul-2008 |
matt | Refactor common code to _rtld_relocate_plt_object to i386 and arm so they
act like the other versions.
In _rtld_bind, if the result is 0, call _rtld_die.
Initialize _rtld_sym_zero.st_value to -_rtld_objself.maprelocbase. Now when
the symbol is resolved, st_value + maprelocbase will equal 0 and the above
check in _rtld_bind will fire and a call to NULL will be avoided.
|
| 1.119 |
| 23-Jul-2008 |
christos | abort() if we are trying to use an undefined weak symbol from the plt. Remove
check from relocate_plt_object() since we cannot return _rtld_sym_zero anymore.
Code from gimpy.
|
| 1.118 |
| 03-Jun-2008 |
ad | Don't bother unmapping the ELF header unless it overlaps the first load
section.
|
| 1.117 |
| 07-Dec-2007 |
ad | branches: 1.117.6; 1.117.8;
rtld changes for PR bin/37347:
- Apply patch from J.T. Conklin to execute .init/.fini functions in order.
- Support DF_1_INITFIRST and mark libc with DF_1_INITFIRST. Shared libs
should be recording a dependency on libc, but it's too late to do that.
Ok christos@.
|
| 1.116 |
| 05-Oct-2007 |
ad | - Don't use the names malloc/free/etc, since we can end up pulling in libc's
malloc which is not what we want.
- Remove ancient memory compaction hack. Realloc on free memory is now an
error again (from joerg@).
Ok christos@.
|
| 1.115 |
| 21-Sep-2007 |
christos | Don't trust AT_SUN_EXECNAME, if we are set{u,g}id.
|
| 1.114 |
| 20-Sep-2007 |
christos | Use AT_SUN_EXECPATH instead of argv[0] for the executable name. This needs
kernel support, which is not there yet, thus $ORIGIN is broken at this time.
This is ok, nothing uses it yet.
|
| 1.113 |
| 18-May-2007 |
christos | branches: 1.113.4;
Support Solaris-like $ORIGIN etc. expansions in paths.
|
| 1.112 |
| 08-Apr-2007 |
scw | Remove a test for defined(__SH5__).
|
| 1.111 |
| 22-Nov-2006 |
christos | branches: 1.111.2; 1.111.4;
From defend dot the dot world at gmail dot com: Sanitize environment variables
for set{u,g}id binaries, so that in case they are playing with set{u,g}id
and exec'ing other binaries they don't get affected by the
LD_{PRELOAD,DEBUG,LIBRARY_PATH} environment setup. We leave LD_BIND_NOW alone.
There are no binaries affected in the base system.
|
| 1.110 |
| 21-Mar-2006 |
christos | Coverity CID 2749: Fix another double free. Instead of removing that last
free() call, change the allocation policy to leave the responsibility for
allocation/freeing the pathname to _rtld_map_object(), instead of having
the caller allocate it and _rtld_map_object() free it. This simplifies the
code a lot and it is more efficient.
|
| 1.109 |
| 12-Jan-2006 |
skrll | Bring across a change from FreeBSD from back in 1998:
"Fix a bug that showed up when debugging dynamically linked programs.
References from GDB to "printf" and various other functions would
find the versions in the dynamic linker itself, rather than the
versions in the program's libc. This fix moves the GDB link map
entry for the dynamic linker to the end of the search list, where
its symbols will be found only if they are not found anywhere else."
"printf" isn't true for us, but various libc symbols are, e.g. "malloc".
Fixes PR 32074 as noted by uwe@
OK'd by christos@
|
| 1.108 |
| 11-Jan-2006 |
uwe | _GLOBAL_OFFSET_TABLE_ is only used if RTLD_DEBUG, so wrap its
declaration too.
32-bit SuperH can not pretend that _GLOBAL_OFFSET_TABLE_ is a normal
variable, because of the way PIC variable references is generated, but
as compiler arranges for _GLOBAL_OFFSET_TABLE_ address to be in r12
anyway, just use that value by declaring it as a global register
variable. Makes sh3 compile with RTLD_DEBUG.
|
| 1.107 |
| 22-Oct-2004 |
skrll | branches: 1.107.2;
Add __RCSIDs.
OK'd by mycroft.
|
| 1.106 |
| 18-Jul-2004 |
thorpej | - Change the strong dlfcn names in libc to ___name, and make the __name
versions used by others in libc weak, so that we have:
name: weak
__name: weak
___name: strong
- Add __name strong aliases of the dlfcn names in ld.elf_so, so that we have:
name: strong
__name: strong
This allows ld.elf_so to self-resolve both the name and __name variants
of the dlfcn functions, the former being required for dlfcn support in
applications, the latter being required for dlfcn support in libc.
Fixes the problem described in:
http://mail-index.netbsd.org/tech-toolchain/2004/07/17/0000.html
Reviewed by Nick.
|
| 1.105 |
| 17-May-2004 |
skrll | Fix the dynamic linker for hppa using ELF.
Lazy binding doesn't work 100% of the time so force immediate binding.
One possible reason is that the PLT stub blows away r20 which the
compiler might not take into account.
|
| 1.104 |
| 17-May-2004 |
skrll | Test before commit.
|
| 1.103 |
| 17-May-2004 |
skrll | Re-arrange/correct some asserts.
|
| 1.102 |
| 12-May-2004 |
skrll | Garbage collect the RTLD_RELOCATE_SELF error.
|
| 1.101 |
| 07-Sep-2003 |
mycroft | branches: 1.101.2;
Back out revision 1.100. There is something screwier going on.
|
| 1.100 |
| 31-Aug-2003 |
mycroft | dlsym() should not leave an error set. It confuses programs that check
dlerror() (such as pkgsrc/graphics/transcode).
|
| 1.99 |
| 12-Aug-2003 |
skrll | Resolve dlsym(3) and friends directly so that dlsym(RTLD_NEXT,...) works.
Previously dlsym resolved to the version in crt0.o or libc which would
mean that the caller's shared object couldn't be determined correctly
using __builtin_return_address(0).
Mainly from FreeBSD, but adapted by me. Benefits of this solutions are:
- backward comptibility maintained
- existing broken binaries are fixed with a new ld.elf_so
- __mainprog_obj can be removed from crt0.o
- we do the same thing as FreeBSD
Fixes PR 22067.
OKed by Jason and Christos.
|
| 1.98 |
| 24-Jul-2003 |
skrll | ANSIfy and de-__P().
|
| 1.97 |
| 21-Jul-2003 |
skrll | arm and sh5 also have bogus DT_TEXTRELs. sh5 was already covered so just
update the comment.
|
| 1.96 |
| 17-Jul-2003 |
skrll | Correct the in_plt parameter of a couple of _rtld_find_symdef calls.
The mips_reloc.c case is a no-op as _rtld_symlook_obj ignores in_plt for
MIPS.
OK'ed by Charles.
|
| 1.95 |
| 30-Jun-2003 |
marcus | SH also has a bogus DT_TEXTREL, it seems.
|
| 1.94 |
| 05-Jun-2003 |
simonb | KNF- blank lines before code at start of functions.
|
| 1.93 |
| 30-May-2003 |
christos | Add RTLD_FIRST, RTLD_NEXT, RTLD_DEFAULT, from FreeBSD
|
| 1.92 |
| 24-Apr-2003 |
mycroft | Back out previous change for now -- it needs more work.
|
| 1.91 |
| 23-Apr-2003 |
mycroft | Attempt to give dlsym() the same symbol-searching semantics as _rtld_bind().
Tested in a handful of cases.
Reviewed by: a dead silence
|
| 1.90 |
| 14-Dec-2002 |
junyoung | Gracefully exit when invoked directly. Use of assert() here caused a segfault.
Address PR#11785.
|
| 1.89 |
| 05-Dec-2002 |
junyoung | A bit speedup: in _rtld_load_object(), save the number of calls to
strcmp() by performing path name length comparison first. In the test
with Mozilla, the number was reduced to 1068 from 7182 (yes, we saved
6114 strcmp()!).
|
| 1.88 |
| 24-Nov-2002 |
fvdl | For the debug case, print relocbase as well at the start of _rtld().
|
| 1.87 |
| 05-Oct-2002 |
mycroft | Minor cleanup.
|
| 1.86 |
| 04-Oct-2002 |
mycroft | Rearrange _rtld_map_object() a little, so that we don't have to have the first
page of the object double-mapped. Not that it matters much, but someone was
whinging about it.
While I'm at it, nuke obj->phdr and obj->phsize; they're unused.
|
| 1.85 |
| 04-Oct-2002 |
mycroft | Move the definition of _rtld_list_main so ldd builds again.
|
| 1.84 |
| 03-Oct-2002 |
mycroft | As seen on tech-userlevel...
There are several optimizations here:
1) Objects on _rtld_list_main do not participate in the DAG structures
at all. This is okay because all symbols must be resolvable at
link/load time, and _rtld_list_main is always searched first, so
any references from those objects must necessarily be resolved to
other objects on _rtld_list_main.
(Making this work completely required setting obj->main a bit
earlier; hence the RTLD_MAIN hack.)
2) Objects on _rtld_list_main are not put on _rtld_list_global,
preventing an extra search.
3) A bit is used to keep track of whether an object is on
_rtld_list_global, so we don't have to do a silly linear search.
4) A small attempt is made to prevent objects being put on the DAG
lists multiple times (using a silly linear search).
The sum of this appears to be a ~10% (.3s) reduction in Mozilla's
startup time on my 800MHz box.
Also, make sure _rtld_objmain->path is always set, just to make the
debug output nicer.
|
| 1.83 |
| 03-Oct-2002 |
mycroft | Do not put objects on _rtld_list_main on any DAG member list -- any symbol we
will have already been found during the _rtld_list_main walk, so there's no
point in doing it again.
|
| 1.82 |
| 26-Sep-2002 |
mycroft | Implement a self-relocate function for the VAX.
|
| 1.81 |
| 26-Sep-2002 |
mycroft | Remove the `self' args to _rtld_relocate_objects() and
_rtld_relocate_nonplt_objects().
|
| 1.80 |
| 26-Sep-2002 |
mycroft | Clean up _rtld_init() -- there is no need to avoid globals.
Remove the call to _rtld_relocate_objects() completely -- except on VAX, where
we TEMPORARILY call _rtld_relocate_nonplt_objects() directly.
Also add more assertions -- ld.elf_so should never have PLT relocations.
|
| 1.79 |
| 26-Sep-2002 |
mycroft | Hm, the const isn't going to work.
|
| 1.78 |
| 26-Sep-2002 |
mycroft | Do not attempt to free(_rtld_objself.path) -- it's a pointer into our data
segment.
|
| 1.77 |
| 25-Sep-2002 |
mycroft | #if defined -> #ifdef
|
| 1.76 |
| 24-Sep-2002 |
mycroft | Put back the `in_plt' nonsense for now.
It turns out there is some deep-seated wackiness WRT function pointer
comparisons...
|
| 1.75 |
| 24-Sep-2002 |
mycroft | Touch up a little more -- some of the dbg()s never actually printed anything.
|
| 1.74 |
| 24-Sep-2002 |
mycroft | Previous change was done wrong.
|
| 1.73 |
| 24-Sep-2002 |
junyoung | Make sure that dbg() is disabled if LD_DEBUG is not defined. Now
debugging is easier with RTLD_DEBUG_RELOC.
|
| 1.72 |
| 24-Sep-2002 |
mycroft | Change the comment about l_offs.
|
| 1.71 |
| 24-Sep-2002 |
junyoung | Remove '\n' at the end of dbg strings.
|
| 1.70 |
| 24-Sep-2002 |
junyoung | END_SYM is no longer used.
|
| 1.69 |
| 24-Sep-2002 |
mycroft | Use/require AT_PAGESZ on all platforms. (The kernel has exported it for ~3
years now.) Use _rtld_pagesz instead of getpagesize() to determine the page
size in our local malloc(). Saves a system call.
Also, since we're now relocated early, we don't need to be careful to avoid
globals, so most of the VARPSZ hacks are eliminated.
|
| 1.68 |
| 24-Sep-2002 |
mycroft | Um, a little bit of sanity here:
l_addr is always supposed to be obj->relocbase -- or so says the GDB code that
uses it. So, set it to this on all platforms. It already was on VAX
explicitly, and on everything else except MIPS implicitly (because
mapbase==relocbase for all existing shlibs). For some silly/stupid reason, a
new field was created that the MIPS GDB currently uses.
Another MD #ifdef bites it.
|
| 1.67 |
| 23-Sep-2002 |
mycroft | Several small changes that shave 7-8% off the simple-exec-loop test:
* Rename _rtld_find_library() to _rtld_load_library(). It now calls
_rtld_load_object() if necessary to actually load the object, rather
than having the caller do it. To do this, it also takes the `mode'
argument that gets passed to _rtld_load_object().
* On a related note, remove _rtld_check_library(), and instead call
_rtld_load_object() to instead try actually loading the object. We
save two extra namei's and a bunch of redundant work (almost
literally the same code) this way.
* In _rtld_map_object(), mmap(2) the first page read-only, rather than
read(2)ing it.
* In _rtld_symlook_obj(), compare the *second* character of the symbol
name before calling strcmp(). (This first character is too
frequently `_', and turns out to not be helpful, in libc.)
* Also in _rtld_symlook_obj(), remove the bogus STT_FUNC special case
-- this also allows removing the `in_plt' argument to
_rtld_symlook_list() and _rtld_symlook_obj().
Also:
* In _rtld_obj_from_addr(), rather than trying to look up `_end' in
the each object, instead use obj->mapsize as the upper bound.
|
| 1.66 |
| 21-Sep-2002 |
junyoung | Print the name of dynamic linker actually loaded.
|
| 1.65 |
| 20-Sep-2002 |
junyoung | Cosmetic changes (long lines).
|
| 1.64 |
| 19-Sep-2002 |
christos | don't core dump setting progname if argv[0] == NULL. From xs@kittenz.org
|
| 1.63 |
| 13-Sep-2002 |
mycroft | The textrel special case is only needed for MIPS (due to a bug in BFD).
|
| 1.62 |
| 13-Sep-2002 |
mycroft | Kill the sparc64 argc conversion hack.
|
| 1.61 |
| 13-Sep-2002 |
mycroft | Nuke an unneeded hack for the Alpha.
|
| 1.60 |
| 12-Sep-2002 |
mycroft | Nuke -DRTLD_RELOCATE_SELF and `dodebug' from orbit.
|
| 1.59 |
| 12-Sep-2002 |
mycroft | ld.elf_so has no textrels on arm, i386 or vax -- and shouldn't on any platform,
but that's beside the point.
|
| 1.58 |
| 12-Sep-2002 |
mycroft | Add a `relocbase' argument to _rtld() and _rtld_init(), which is passed in
from the glue code in _rtld_start(). This is used to set objself.relocbase,
rather than assuming that it's the same as objself.mapbase (or 0 on MIPS).
Now -- with a bug fix to the kernel -- ld.elf_so can be linked at any VMA.
|
| 1.57 |
| 11-Sep-2002 |
mycroft | This is a gratuitous null commit to force rtld.o to be rebuilt.
|
| 1.56 |
| 06-Sep-2002 |
mycroft | Pass down an additional flag to _rtld_relocate_nonplt_objects() which
indicates whether we're relocating ld.elf_so itself. Use this in some places
rather than hackish tests on `dodebug'. (The Alpha and HPPA `dodebug' tests
were actually noops, because RTLD_RELOCATE_SELF is not set, and therefore
dodebug is always true.)
|
| 1.55 |
| 06-Sep-2002 |
junyoung | Remove typedef which was never used. Meaningless comment as well.
|
| 1.54 |
| 05-Sep-2002 |
mycroft | Remove all of the `mark' code. This is responsible for the `undefined PLT
symbol' errors, probably because the increment gets interrupted occasionally by
a signal. In general, _rtld_bind() should not modify ANY internal state.
|
| 1.53 |
| 26-Aug-2002 |
christos | save 4 system calls by using AT_{R,E}{U,G}ID.
|
| 1.52 |
| 09-Aug-2002 |
soren | Remove extraneous \n's in {err,warn}{,x}.
|
| 1.51 |
| 10-Jul-2002 |
fredette | Add support for dynamic linking on HP PA-RISC.
|
| 1.50 |
| 01-Jun-2002 |
lukem | SIMPLEQ rototill:
- implement SIMPLEQ_REMOVE(head, elm, type, field). whilst it's O(n),
this mirrors the functionality of SLIST_REMOVE() (the other
singly-linked list type) and FreeBSD's STAILQ_REMOVE()
- remove the unnecessary elm arg from SIMPLEQ_REMOVE_HEAD().
this mirrors the functionality of SLIST_REMOVE_HEAD() (the other
singly-linked list type) and FreeBSD's STAILQ_REMOVE_HEAD()
- remove notes about SIMPLEQ not supporting arbitrary element removal
- use SIMPLEQ_FOREACH() instead of home-grown for loops
- use SIMPLEQ_EMPTY() appropriately
- use SIMPLEQ_*() instead of accessing sqh_first,sqh_last,sqe_next directly
- reorder manual page; be consistent about how the types are listed
- other minor cleanups
|
| 1.49 |
| 26-May-2002 |
wiz | __STDC__ is always defined on NetBSD.
|
| 1.48 |
| 03-Feb-2002 |
thorpej | branches: 1.48.2;
Add support for dynamic linking on the SuperH. From Marcus Comstedt,
with some bug fixes (namely, don't forget to consider the addend when
processing relocations) from me.
|
| 1.47 |
| 14-Dec-2001 |
thorpej | Garbage-collect the OLD_GOT stuff.
|
| 1.46 |
| 14-Dec-2001 |
thorpej | binutils-current ld emits DT_TEXTREL into _DYNAMIC on arm-elf. Handle
this.
|
| 1.45 |
| 10-May-2001 |
christos | Unloading objects, can cause other objects whose reference count becomes
0 to be unloaded. Make sure that when we unload those objects we remove
any references to them from the globals list... This fixes SIGSEGV with
apache+mod_php+mysql.
XXX: This fix should be pulled up.
christos
|
| 1.44 |
| 03-Feb-2001 |
pk | Avoid the use of a `switch(){}' statement before _rtld_init() is called.
`switch()' code may be translated using a jump table approach which causes
it to reference the equivalent of a global variable, something that must
be avoided before _rtld_init() has run.
|
| 1.43 |
| 10-Nov-2000 |
mycroft | Make ldd(1) build again.
|
| 1.42 |
| 10-Nov-2000 |
mycroft | When dlopen()ing with RTLD_GLOBAL, also make dependent libraries RTLD_GLOBAL.
|
| 1.41 |
| 28-Aug-2000 |
scottb | copy the real object filename to the rtld object path so that the
Dl_info structure can be properly filled by dladdr().
|
| 1.40 |
| 26-Jul-2000 |
mycroft | The ELF ABI declares that argc must fill an `argument slot'. Make it so.
For __sparc_v9__ only, do a hack to make executables work temporarily before
and after the kernel is switched.
|
| 1.39 |
| 26-Jul-2000 |
mycroft | Catch up with type changes. Also:
* Apply DT_PLTRELSZ to (one of) pltrel or pltrela *after* we've finished
parsing the headers, so we know which one.
* Fix sparc64 bogons. (It works now!)
|
| 1.38 |
| 19-Jul-2000 |
thorpej | Make it build on non-VARPSZ again.
|
| 1.37 |
| 18-Jul-2000 |
eeh | Fix some issues with SPARC V9 ELF binaries.
|
| 1.36 |
| 17-Jul-2000 |
matt | More VAX ELF changes.
|
| 1.35 |
| 14-Jul-2000 |
matt | Initialize ld.elf_so's textsize.
|
| 1.34 |
| 16-Jun-2000 |
christos | branches: 1.34.2;
Also set __mainprog_obj so .ini sections can call dlopen()
|
| 1.33 |
| 03-Jun-2000 |
jdolecek | slighly move the assert() added in last commit, so that it's
actually useful
|
| 1.32 |
| 02-Jun-2000 |
jdolecek | _rtld_unref_dag(): needed->obj might be null if the unreffed object has
some unsatisfied references (most often when compiled without necessary
-Wl,-R), so check for that instead of causing null-dereference;
this way the code has a chance to cleanup after itself and report
the error to caller
Thanks to Jason Thorpe for helping fix this!
|
| 1.31 |
| 15-Apr-2000 |
erh | branches: 1.31.2;
Cause ld.elf_so to find the symbols for __progname and environ and set them. If we wait until crt0 gets around to doing it it's too late for any library init functions.
|
| 1.30 |
| 15-Apr-2000 |
christos | re-indent sanely _rtld_dlsym() [no functional change]
|
| 1.29 |
| 07-Feb-2000 |
kleink | Change _rtld_dlclose() to unload the object via _rtld_unload_object() rather
than by itself. Besides being duplicated code the open-coded version
also did not take care of cleaning up after the object's DAG(!).
Fixes PR bin/8905.
|
| 1.28 |
| 13-Dec-1999 |
christos | Enable parsing and mapping of hardware dependent libraries in ld.so.conf
To be documented in the man page.
|
| 1.27 |
| 10-Nov-1999 |
thorpej | Name consistencty nit: curmark -> _rtld_curmark
|
| 1.26 |
| 10-Nov-1999 |
thorpej | Some slight cosmetic cleanup.
|
| 1.25 |
| 07-Nov-1999 |
mycroft | Changes from msaitoh to fix local/global symbol confusion, and to fix weak
symbol support -- updated by me for elf.h changes.
|
| 1.24 |
| 25-Oct-1999 |
kleink | Update to match new SVR4-style definition names in <sys/exec_elf.h>.
|
| 1.23 |
| 19-Aug-1999 |
christos | branches: 1.23.2;
enable /etc/ld.so.conf processing
[reviewed by thorpej]
|
| 1.22 |
| 01-Aug-1999 |
kleink | Rearrange the shared library search path precedences to LD_LIBRARY_PATH >
runpath > built-in default; this is the behaviour of the SVR4 shared loader,
and gives users the opportunity to override the runpath. (Addresses a report
on current-users by John Kohl.)
|
| 1.21 |
| 22-Jul-1999 |
thorpej | When dlopen()'ing a shared object without an absolute pathname, search
for it in the rpath of the main program as well as the path specified
in LD_LIBRARY_PATH.
|
| 1.20 |
| 15-Jun-1999 |
kleink | Don't include the ident .note assembly when linting.
|
| 1.19 |
| 31-May-1999 |
kleink | Implement LD_PRELOAD support.
|
| 1.18 |
| 18-Apr-1999 |
ws | Add code to use the kernel provided page size.
Enable this on the powerpc only for now.
|
| 1.17 |
| 08-Mar-1999 |
kleink | branches: 1.17.2;
Update an i386-ismed comment.
|
| 1.16 |
| 03-Mar-1999 |
christos | Make this compile without -DRTLD_LOADER and fix printf format problems on
the alpha.
|
| 1.15 |
| 01-Mar-1999 |
christos | KNF
|
| 1.14 |
| 27-Feb-1999 |
pk | Just initialize the stack-based temporary `rtld self' object.
|
| 1.13 |
| 24-Feb-1999 |
christos | Cleanup global variable access so rtld can be self relocating. Also KNF
reloc.c and move md sparc parts to arch/sparc/mdreloc.c
Now we don't need to load at address 0 on the i386 and the mips should be
trivial to fix.
|
| 1.12 |
| 10-Jan-1999 |
christos | Add i386 bits
|
| 1.11 |
| 09-Jan-1999 |
castor | Restore missing variable declaration with -DRTLD_DEBUG
|
| 1.10 |
| 07-Oct-1998 |
ross | Rewrite AuxInfo handling to track AuxID changes in sys/exec_elf.h.
|
| 1.9 |
| 15-Jul-1998 |
tv | Some local changes accidentally made it into the last commit; back that
part out (noticed by mycroft; thanks!)
|
| 1.8 |
| 14-Jul-1998 |
tv | Change ld.so default behavior to RTLD_LOCAL, and make RTLD_LOCAL into a
new flag bit. Keep RTLD_GLOBAL as an actual flag bit so it won't be
re-used, or may be used for something later. Mask the dlopen() mode bits
in ld.elf_so so a comparison against RTLD_NOW works. (RTLD_{LOCAL,GLOBAL}
needs to be implemented for ld.elf_so.)
|
| 1.7 |
| 16-Jun-1998 |
mhitch | Don't forget to update _rtld_objtail when _rtld_dlclose() removes the
current tail entry.
|
| 1.6 |
| 25-Mar-1998 |
mhitch | Add support for mips.
|
| 1.5 |
| 08-Oct-1997 |
mrg | branches: 1.5.2;
WARNS?=1
|
| 1.4 |
| 15-Apr-1997 |
cgd | make sure that ld.elf_so's path is in the data segment
|
| 1.3 |
| 21-Mar-1997 |
cgd | put in two identifying notes, which new binutils snapshots will turn
into PT_NOTE sections so they can be examined by execve() to figure
out whether this is a native binary, what emulation it's to be run under,
etc.
|
| 1.2 |
| 18-Dec-1996 |
cgd | nclude dlfcn.h, and pull RLTD_LAZY in from there. Assume that RTLD_NOW is
RLTD_LAZY + 1 (for now), if it's not defined. RTLD_NOW should be defined
in dlfcn.h, since some code (e.g. X11) wants it and assumes that it has
the value currently used by our RTLD_LAZY.
|
| 1.1 |
| 16-Dec-1996 |
cgd | First cut at an ELF shared loader. Originally from John Polstra's FreeBSD elf
kit, then hacked on by Matt Thomas <matt@3am-software.com>, then by me (to
make it work with new versions of the toolchain, etc.). This runs, but it's
in serious need of cleaning and/or a fair bit of reworking. See the README
file for more information, and a list of things to do.
|
| 1.5.2.2 |
| 27-Sep-1998 |
cgd | pull up rev 1.7 from trunk (mhitch).
|
| 1.5.2.1 |
| 08-May-1998 |
mycroft | Sync with trunk, per request of mycroft.
|
| 1.17.2.1 |
| 23-Jun-1999 |
perry | pullup 1.18->1.19 (klienk): LD_PRELOAD support
|
| 1.23.2.1 |
| 27-Dec-1999 |
wrstuden | Pull up to last week's -current.
|
| 1.31.2.1 |
| 22-Jun-2000 |
minoura | Sync w/ netbsd-1-5-base.
|
| 1.34.2.3 |
| 09-Dec-2001 |
he | Pull up revisions 1.42-1.45 (requested by skrll):
Add init/fini section support in crtbegin and crtend, and introduce
support for DWARF2 exception handling. Fixes PR#12865, PR#13488,
PR#13489, and PR#13491. Also fix ld.elf_so to deal appropriately.
|
| 1.34.2.2 |
| 29-Aug-2000 |
scottb | pullup version 1.41 (approved by thorpej):
copy the real object filename to the rtld object path so that the
Dl_info structure can be properly filled by dladdr().
|
| 1.34.2.1 |
| 26-Jul-2000 |
mycroft | Approved by thorpej:
Add support for sparc64, including MD code and variable page size support.
Modify some variable types to insure they are the correct width on sparc64.
basesrc/libexec/ld.elf_so/arch/sparc64/Makefile.inc 0 -> 1.1
basesrc/libexec/ld.elf_so/arch/sparc64/mdreloc.c 0 -> 1.3
basesrc/libexec/ld.elf_so/arch/sparc64/rtld_start.S 0 -> 1.2
basesrc/libexec/ld.elf_so/headers.c 1.6 -> 1.8
basesrc/libexec/ld.elf_so/reloc.c 1.26 -> 1.27
basesrc/libexec/ld.elf_so/reloc.c 1.29 -> 1.31
basesrc/libexec/ld.elf_so/rtld.c 1.34 -> 1.35
basesrc/libexec/ld.elf_so/rtld.c 1.36 -> 1.40
basesrc/libexec/ld.elf_so/rtld.h 1.26 -> 1.27
basesrc/libexec/ld.elf_so/symbol.c 1.7 -> 1.9
|
| 1.48.2.2 |
| 28-May-2004 |
tron | Apply patch (request by skrll in ticket #1702):
Bring "ld.elf_so" (mostly) in sync with NetBSD-current:
- MI and MD (e.g. under NetBSD-alpha) performance improvements
- RTLD_SELF, RTLD_NEXT, RTLD_DEFAULT support
- much better structured code
- closes PR bin/25464
|
| 1.48.2.1 |
| 05-Sep-2003 |
tron | Pull up revision 1.54 via patch (requested by dmcmahill in ticket #1395):
Remove all of the `mark' code. This is responsible for the `undefined
PLT
symbol' errors, probably because the increment gets interrupted
occasionally by
a signal. In general, _rtld_bind() should not modify ANY internal
state.
|
| 1.101.2.1 |
| 19-Jul-2004 |
tron | Pull up revision 1.106 (requested by thorpej in ticket #676):
- Change the strong dlfcn names in libc to ___name, and make the __name
versions used by others in libc weak, so that we have:
name: weak
__name: weak
___name: strong
- Add __name strong aliases of the dlfcn names in ld.elf_so, so that
we have:
name: strong
__name: strong
This allows ld.elf_so to self-resolve both the name and __name variants
of the dlfcn functions, the former being required for dlfcn support in
applications, the latter being required for dlfcn support in libc.
Fixes the problem described in:
http://mail-index.netbsd.org/tech-toolchain/2004/07/17/0000.html
Reviewed by Nick.
|
| 1.107.2.2 |
| 08-Oct-2008 |
bouyer | Pull up following revision(s) (requested by jmcneill in ticket #1973):
libexec/ld.elf_so/symbol.c: revision 1.47
libexec/ld.elf_so/rtld.h: revision 1.79
libexec/ld.elf_so/rtld.c: revision 1.122
lib/39649: dlsym(3) does not follow dependencies
Pull across code from FreeBSD to do a search of the passed object and it's
NEEDED objects (dependencies).
Reviewed by gimpy.
|
| 1.107.2.1 |
| 01-Feb-2006 |
tron | Pull up following revision(s) (requested by christos in ticket #1150):
libexec/ld.elf_so/rtld.c: revision 1.109
Bring across a change from FreeBSD from back in 1998:
"Fix a bug that showed up when debugging dynamically linked programs.
References from GDB to "printf" and various other functions would
find the versions in the dynamic linker itself, rather than the
versions in the program's libc. This fix moves the GDB link map
entry for the dynamic linker to the end of the search list, where
its symbols will be found only if they are not found anywhere else."
"printf" isn't true for us, but various libc symbols are, e.g. "malloc".
Fixes PR 32074 as noted by uwe@
OK'd by christos@
|
| 1.111.4.1 |
| 03-Sep-2007 |
wrstuden | Sync w/ NetBSD-4-RC_1
|
| 1.111.2.2 |
| 31-Oct-2008 |
snj | Pull up following revision(s) (requested by jmcneill in ticket #1211):
libexec/ld.elf_so/symbol.c: revision 1.47
libexec/ld.elf_so/rtld.h: revision 1.79
libexec/ld.elf_so/rtld.c: revision 1.122
lib/39649: dlsym(3) does not follow dependencies
Pull across code from FreeBSD to do a search of the passed object and its
NEEDED objects (dependencies).
|
| 1.111.2.1 |
| 19-Jul-2007 |
liamjfoy | Pull up following revision(s) (requested by soren in ticket #774):
build.sh: revision 1.169
gnu/usr.bin/gcc4/backend/Makefile: revision 1.9
sys/arch/evbsh5/README: revision 1.1
distrib/notes/common/contents: revision 1.124
usr.sbin/ndbootd/ndbootd.c: revision 1.12
gnu/lib/libopcodes/arch/sh3eb/defs.mk: revision 1.4
gnu/lib/libbfd/arch/sh3eb/defs.mk: revision 1.8
libexec/ld.elf_so/Makefile: revision 1.78
gnu/dist/binutils/bfd/config.bfd: revision 1.14
doc/HACKS: revision 1.93
distrib/cdrom/current.conf: revision 1.8
gnu/lib/libgcc4/Makefile.inc: revision 1.6
share/mk/sys.mk: revision 1.90
distrib/sets/lists/base/mi: revision 1.700
libexec/ld.elf_so/rtld.c: revision 1.112
distrib/sets/lists/base/mi: revision 1.702
sys/arch/sh5/README: revision 1.1
gnu/lib/libbfd/arch/sh3el/bfd.h: revision 1.7
usr.sbin/traceroute/traceroute.c: revision 1.69
distrib/notes/common/main: revision 1.330
distrib/notes/common/list-setsizes.sh: revision 1.2
sys/arch/Makefile: revision 1.35
gnu/lib/libopcodes/arch/sh3el/defs.mk: revision 1.4
gnu/lib/libbfd/arch/sh3el/defs.mk: revision 1.8
share/mk/bsd.own.mk: revision 1.495
gnu/lib/libbfd/arch/sh3eb/bfd.h: revision 1.7
x11/lib/OSmesa/Makefile: revision 1.20
sys/dev/dkwedge/dkwedge_bsdlabel.c: revision 1.13
gnu/dist/binutils/opcodes/configure.in: revision 1.2
gnu/dist/binutils/opcodes/configure: revision 1.2
gnu/usr.bin/send-pr/categories: revision 1.53
etc/mtree/NetBSD.dist: revision 1.339
sys/arch/README: revision 1.42
lib/libc/gdtoa/Makefile.inc: revision 1.6
usr.bin/crunch/crunchide/Makefile: revision 1.16
sys/lkm/net/bsdcomp/Makefile: revision 1.5
regress/sys/uvm/Makefile: revision 1.6
etc/MAKEDEV.awk: revision 1.18
x11/Xserver/GL/GLcore/Makefile.GLcore: revision 1.10
sys/contrib/dev/ath/netbsd/Makefile.ath.inc: revision 1.14
gnu/lib/libbfd/Makefile: revision 1.42
doc/RESPONSIBLE: revision 1.78
Remove evbsh5.
|
| 1.113.4.2 |
| 09-Jan-2008 |
matt | sync with HEAD
|
| 1.113.4.1 |
| 06-Nov-2007 |
matt | sync with HEAD
|
| 1.117.8.2 |
| 18-Sep-2008 |
wrstuden | Sync with wrstuden-revivesa-base-2.
|
| 1.117.8.1 |
| 23-Jun-2008 |
wrstuden | Sync w/ -current. 34 merge conflicts to follow.
|
| 1.117.6.1 |
| 17-Jun-2008 |
yamt | sync with head.
|
| 1.123.8.2 |
| 19-Aug-2010 |
matt | Rework the debug printfs for env so that if the env array is corrupt at
least some output happens.
|
| 1.123.8.1 |
| 21-Apr-2010 |
matt | sync to netbsd-5
|
| 1.123.2.3 |
| 17-Mar-2012 |
bouyer | Pull up following revision(s) via patch (requested by skrll in ticket #1724):
rescue/list.ldd: revision 1.4
lib/libc/dlfcn/dlfcn_elf.c: revision 1.7
libexec/ld.elf_so/arch/mips/mips_reloc.c: revision 1.57
distrib/sets/lists/comp/mi: revision 1.1512
share/man/man3/Makefile: revision 1.56
libexec/ld.elf_so/arch/mips/mips_reloc.c: revision 1.58
usr.bin/ldd/ldd.c: revision 1.15
libexec/ld.elf_so/rtld.h: revision 1.84
share/man/man3/dl_iterate_phdr.3: revision 1.1
libexec/ld.elf_so/rtld.c: revision 1.129
libexec/ld.elf_so/arch/powerpc/ppc_reloc.c: revision 1.44
libexec/ld.elf_so/rtld.h: revision 1.89
libexec/ld.elf_so/arch/x86_64/mdreloc.c: revision 1.36
libexec/ld.elf_so/map_object.c: revision 1.41
libexec/ld.elf_so/arch/x86_64/mdreloc.c: revision 1.37
libexec/ld.elf_so/arch/sparc64/mdreloc.c: revision 1.46
include/link_elf.h: revision 1.10
libexec/ld.elf_so/arch/i386/mdreloc.c: revision 1.29
libexec/ld.elf_so/arch/vax/mdreloc.c: revision 1.26
libexec/ld.elf_so/arch/alpha/alpha_reloc.c: revision 1.34
libexec/ld.elf_so/arch/hppa/hppa_reloc.c: revision 1.31
libexec/ld.elf_so/arch/alpha/alpha_reloc.c: revision 1.35
libexec/ld.elf_so/Makefile: revision 1.94
libexec/ld.elf_so/arch/hppa/hppa_reloc.c: revision 1.32
libexec/ld.elf_so/Makefile: revision 1.95
libexec/ld.elf_so/arch/arm/mdreloc.c: revision 1.31
libexec/ld.elf_so/Makefile: revision 1.96
libexec/ld.elf_so/arch/arm/mdreloc.c: revision 1.32
libexec/ld.elf_so/reloc.c: revision 1.98
libexec/ld.elf_so/arch/arm/mdreloc.c: revision 1.33
sys/sys/exec_elf.h: revision 1.106
libexec/ld.elf_so/rtld.c: revision 1.130
libexec/ld.elf_so/load.c: revision 1.37
libexec/ld.elf_so/rtld.c: revision 1.131
libexec/ld.elf_so/load.c: revision 1.38
libexec/ld.elf_so/rtld.h: revision 1.90
libexec/ld.elf_so/headers.c: revision 1.36
libexec/ld.elf_so/rtld.h: revision 1.95
libexec/ld.elf_so/arch/i386/mdreloc.c: revision 1.30
libexec/ld.elf_so/arch/m68k/mdreloc.c: revision 1.25
libexec/ld.elf_so/symbol.c: revision 1.50
libexec/ld.elf_so/symbol.c: revision 1.51
libexec/ld.elf_so/arch/sparc/mdreloc.c: revision 1.43
libexec/ld.elf_so/symbol.c: revision 1.52
libexec/ld.elf_so/arch/sh3/mdreloc.c: revision 1.27
libexec/ld.elf_so/symbol.c: revision 1.54
PR/39240: Satoshi Suetake: Don't fail when attempting to resolve weak symbols
when we are doing immediate binding, leave them alone and they will be dealt
with later during lazy binding. From skrll@
Implement negative cache checks for symbol lookups.
Uses the Donelist idea from FreeBSD.
Use alloca(3) instead of local xmalloc for creating our DoneLists.
This allows threaded programs to use us a little better, PR lib/43005.
Implement dl_iterate_phdr.
Somewhat taken from FreeBSD. Manual page from OpenBSD.
|
| 1.123.2.2 |
| 03-Dec-2009 |
sborrill | Pull up the following revisions(s) (requested by tron in ticket #1179):
libexec/ld.elf_so/rtld.c: revision 1.127
If the environment is corrupt, die. From FreeBSD.
|
| 1.123.2.1 |
| 14-Oct-2009 |
sborrill | Pull up the following revisions(s) (requested by pooka in ticket #1088):
include/dlfcn.h: revision 1.20
lib/libc/dlfcn/dlfcn_elf.c: revision 1.6
libexec/ld.elf_so/reloc.c: revision 1.97
libexec/ld.elf_so/rtld.c: revision 1.125
libexec/ld.elf_so/rtld.h: revision 1.81
libexec/ld.elf_so/symbol.c: revision 1.48
Add Solarisa-like dlinfo() interface to the ELF dynamic linker.
Implement RTLD_DI_LINKMAP which returns a pointer to the linkmap
chain at the given object. Other Solaris queries are currently
unimplemented.
|
| 1.137.2.1 |
| 05-Mar-2011 |
bouyer | Sync with HEAD
|
| 1.153.2.4 |
| 22-May-2014 |
yamt | sync with head.
for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.
this commit was splitted into small chunks to avoid
a limitation of cvs. ("Protocol error: too many arguments")
|
| 1.153.2.3 |
| 23-Jan-2013 |
yamt | sync with head
|
| 1.153.2.2 |
| 30-Oct-2012 |
yamt | sync with head
|
| 1.153.2.1 |
| 17-Apr-2012 |
yamt | sync with head
|
| 1.155.6.1 |
| 17-Apr-2015 |
msaitoh | Pull up following revision(s) (requested by joerg in ticket #1288):
libexec/ld.elf_so/rtld.c: revision 1.176
lib/49813: Release mutex on error.
|
| 1.155.4.1 |
| 22-Jan-2013 |
matt | Pullup from HEAD:
Add .init_array/.fini_array support (conditionalized on HAVE_INITFINI_ARRAY).
|
| 1.155.2.4 |
| 16-Apr-2015 |
msaitoh | Pull up following revision(s) (requested by joerg in ticket #1288):
libexec/ld.elf_so/rtld.c: revision 1.176
lib/49813: Release mutex on error.
|
| 1.155.2.3 |
| 25-Jan-2015 |
martin | Pull up the following, requested by he in ticket #1238:
src/libexec/ld.elf_so/rtld.c 1.161
Fix the other lwp_park() to pass 0 for the 'unpark' lwp.
|
| 1.155.2.2 |
| 24-Jan-2015 |
martin | Pull up following revision(s) (requested by he in ticket #1238):
libexec/ld.elf_so/rtld.c: revision 1.160
You need to pass 0 (not -1) to lwp_park() if you don't also
want to do an unpark.
Clearly this code path was never tested!
|
| 1.155.2.1 |
| 17-Oct-2012 |
riz | branches: 1.155.2.1.2;
Pull up following revision(s) (requested by riastradh in ticket #605):
libexec/ld.elf_so/rtld.c: revision 1.159
On failure in _rtld_dlcheck, call _rtld_error, not xwarnx.
Callers need not call _rtld_error themselves now.
Fixes PR lib/41760. Should add the test case from the PR too.
|
| 1.155.2.1.2.1 |
| 17-Apr-2015 |
msaitoh | Pull up following revision(s) (requested by joerg in ticket #1288):
libexec/ld.elf_so/rtld.c: revision 1.176
lib/49813: Release mutex on error.
|
| 1.158.2.4 |
| 20-Aug-2014 |
tls | Rebase to HEAD as of a few days ago.
|
| 1.158.2.3 |
| 23-Jun-2013 |
tls | resync from head
|
| 1.158.2.2 |
| 25-Feb-2013 |
tls | resync with head
|
| 1.158.2.1 |
| 20-Nov-2012 |
tls | Resync to 2012-11-19 00:00:00 UTC
|
| 1.173.4.3 |
| 06-Mar-2016 |
martin | Catch up to -current, via patch, requested by christos in ticket #1126:
|
| 1.173.4.2 |
| 06-Apr-2015 |
snj | Pull up following revision(s) (requested by joerg in ticket #665):
libexec/ld.elf_so/rtld.c: revision 1.176
lib/49813: Release mutex on error.
|
| 1.173.4.1 |
| 09-Mar-2015 |
snj | Pull up following revision(s) (requested by skrll in ticket #569):
libexec/ld.elf_so/rtld.c: revision 1.175
HPPA hack for a problem where gdb doesn't see _rtld_debug_state when
it's a single bv,n %r0(%rp) instruction.
The nullify confuses something.
|
| 1.178.2.2 |
| 20-Mar-2017 |
pgoyette | Sync with HEAD
|
| 1.178.2.1 |
| 07-Jan-2017 |
pgoyette | Sync with HEAD. (Note that most of these changes are simply $NetBSD$
tag issues.)
|
| 1.182.2.1 |
| 21-Apr-2017 |
bouyer | Sync with HEAD
|
| 1.183.4.3 |
| 01-Aug-2023 |
martin | Pull up following revision(s) (requested by riastradh in ticket #1871):
libexec/ld.elf_so/rtld.c: revision 1.213
dlopen(3): Read _rtld_objtail under the lock.
|
| 1.183.4.2 |
| 29-Aug-2017 |
bouyer | Pull up following revision(s) (requested by joerg in ticket #127):
tests/libexec/ld.elf_so/h_thread_local_dtor.c: revision 1.1
external/gpl3/gcc/lib/libstdc++-v3/arch/earmv6/c++config.h: revision 1.14
external/gpl3/gcc/lib/libstdc++-v3/arch/earmeb/c++config.h: revision 1.17
lib/libc/stdlib/atexit.h: file removal
lib/libc/stdlib/exit.c: revision 1.16
external/gpl3/gcc/lib/libstdc++-v3/arch/powerpc64/c++config.h: revision 1.8
lib/libc/stdlib/exit.c: revision 1.17
external/gpl3/gcc/lib/libstdc++-v3/arch/earmv7hf/c++config.h: revision 1.14
distrib/sets/lists/debug/shl.mi: revision 1.178
external/gpl3/gcc/lib/libstdc++-v3/arch/sh3el/c++config.h: revision 1.21
distrib/sets/lists/debug/shl.mi: revision 1.179
distrib/sets/lists/debug/mi: revision 1.219
lib/libpthread/pthread.c: revision 1.150
external/gpl3/gcc/lib/libstdc++-v3/arch/earmv7/c++config.h: revision 1.14
libexec/ld.elf_so/symbols.map: revision 1.2
include/dlfcn.h: revision 1.25
external/gpl3/gcc/lib/libstdc++-v3/arch/arm/c++config.h: revision 1.21
external/gpl3/gcc/lib/libstdc++-v3/arch/x86_64/c++config.h: revision 1.23
external/gpl3/gcc/lib/libstdc++-v3/arch/mips64el/c++config.h: revision 1.18
external/gpl3/gcc/lib/libstdc++-v3/arch/earmv4eb/c++config.h: revision 1.14
external/gpl3/gcc/lib/libstdc++-v3/arch/earm/c++config.h: revision 1.19
external/gpl3/gcc/lib/libstdc++-v3/arch/mipsel/c++config.h: revision 1.19
external/gpl3/gcc/lib/libstdc++-v3/arch/ia64/c++config.h: revision 1.5
external/gpl3/gcc/lib/libstdc++-v3/arch/earmv6eb/c++config.h: revision 1.14
external/gpl3/gcc/lib/libstdc++-v3/arch/earmhf/c++config.h: revision 1.17
distrib/sets/lists/tests/mi: revision 1.755
external/gpl3/gcc/lib/libstdc++-v3/arch/mips64eb/c++config.h: revision 1.19
external/gpl3/gcc/lib/libstdc++-v3/arch/i386/c++config.h: revision 1.20
external/gpl3/gcc/lib/libstdc++-v3/arch/vax/c++config.h: revision 1.21
external/gpl3/gcc/lib/libstdc++-v3/arch/armeb/c++config.h: revision 1.21
external/gpl3/gcc/lib/libstdc++-v3/arch/sparc/c++config.h: revision 1.20
lib/libc/dlfcn/dlfcn_elf.c: revision 1.14
tests/libexec/ld.elf_so/t_thread_local_dtor.sh: revision 1.1
tests/lib/libpthread/t_thread_local_dtor.sh: revision 1.1
lib/libc/stdlib/Makefile.inc: revision 1.93
lib/libc/include/atexit.h: revision 1.1
lib/libc/include/atexit.h: revision 1.2
external/gpl3/gcc/lib/libstdc++-v3/arch/m68k/c++config.h: revision 1.19
external/gpl3/gcc/lib/libstdc++-v3/arch/earmv6hf/c++config.h: revision 1.14
distrib/sets/lists/debug/shl.mi: revision 1.180
external/gpl3/gcc/lib/libstdc++-v3/arch/sparc64/c++config.h: revision 1.19
external/gpl3/gcc/lib/libstdc++-v3/arch/earmv6hfeb/c++config.h: revision 1.14
external/gpl3/gcc/lib/libstdc++-v3/arch/hppa/c++config.h: revision 1.19
external/gpl3/gcc/lib/libstdc++-v3/arch/earmv7hfeb/c++config.h: revision 1.14
lib/libc/stdlib/cxa_thread_atexit.c: revision 1.1
tests/libexec/ld.elf_so/helper_dso3/h_helper_dso3.cpp: revision 1.1
tests/libexec/ld.elf_so/helper_dso3/Makefile: revision 1.1
external/gpl3/gcc/lib/libstdc++-v3/arch/riscv64/c++config.h: revision 1.5
libexec/ld.elf_so/rtld.c: revision 1.185
external/gpl3/gcc/lib/libstdc++-v3/arch/sh3eb/c++config.h: revision 1.19
external/gpl3/gcc/lib/libstdc++-v3/arch/riscv32/c++config.h: revision 1.5
external/gpl3/gcc/lib/libstdc++-v3/arch/m68000/c++config.h: revision 1.15
external/gpl3/gcc/lib/libstdc++-v3/arch/mipseb/c++config.h: revision 1.21
external/gpl3/gcc/lib/libstdc++-v3/arch/coldfire/c++config.h: revision 1.12
external/gpl3/gcc/lib/libstdc++-v3/arch/earmv4/c++config.h: revision 1.14
external/gpl3/gcc/lib/libstdc++-v3/arch/earmhfeb/c++config.h: revision 1.15
external/gpl3/gcc/lib/libstdc++-v3/arch/alpha/c++config.h: revision 1.19
tests/libexec/ld.elf_so/Makefile: revision 1.9
external/gpl3/gcc/lib/libstdc++-v3/arch/powerpc/c++config.h: revision 1.20
external/gpl3/gcc/lib/libstdc++-v3/arch/earmv7eb/c++config.h: revision 1.14
tests/lib/libpthread/h_thread_local_dtor.cpp: revision 1.1
distrib/sets/lists/tests/shl.mi: revision 1.11
tests/lib/libpthread/Makefile: revision 1.13
libexec/ld.elf_so/rtld.h: revision 1.129
external/gpl3/gcc/lib/libstdc++-v3/arch/or1k/c++config.h: revision 1.6
Implement __cxa_thread_atexit and __cxa_thread_atexit_impl. This
functions are used for destructors of thread_local objects.
If a pending destructor exists, prevent unloading of shared objects.
Introduce __dl_cxa_refcount interface for this purpose. When the last
reference is gone and the object has been dlclose'd before, the
unloading is finalized.
Ideally, __cxa_thread_atexit_impl wouldn't exist, but libstdc++ insists
on providing __cxa_thread_atexit as direct wrapper without further
patching.
Fix filename of new debug file
Add misising DEBUGLIB file
Avoid common declaration.
Drop TLS variant checks, emutls is enough for VAX and Sun2.
|
| 1.183.4.1 |
| 10-Jun-2017 |
snj | Pull up following revision(s) (requested by joerg in ticket #26):
libexec/ld.elf_so/rtld.c: revision 1.184
Call _rtld_debug_state before running the global initialisers, so give
gdb a chance to set break points etc.
|
| 1.190.2.4 |
| 18-Jan-2019 |
pgoyette | Synch with HEAD
|
| 1.190.2.3 |
| 20-Oct-2018 |
pgoyette | Sync with head
|
| 1.190.2.2 |
| 07-Apr-2018 |
pgoyette | Sync with HEAD. 77 conflicts resolved - all of them $NetBSD$
|
| 1.190.2.1 |
| 15-Mar-2018 |
pgoyette | Synch with HEAD
|
| 1.192.2.4 |
| 21-Apr-2020 |
martin | Sync with HEAD
|
| 1.192.2.3 |
| 13-Apr-2020 |
martin | Mostly merge changes from HEAD upto 20200411
|
| 1.192.2.2 |
| 08-Apr-2020 |
martin | Merge changes from current as of 20200406
|
| 1.192.2.1 |
| 10-Jun-2019 |
christos | Sync with HEAD
|
| 1.197.2.8 |
| 06-Aug-2024 |
snj | Pull up following revision(s) (requested by martin in ticket #1861):
libexec/ld.elf_so/rtld.c: 1.216
PR 57628: at the end of _rtld_init() explicitly initialize the ld.elf_so
local copy of the atomic access support functions for machines that do not
implement all required ops in hardware (like 32bit sparc).
XXX would be better to figure out a way to share this copy with libc
(thereby using half as many RAS sections). But even if we would share it,
we have to init it early enough for ld.elf_so internal uses.
|
| 1.197.2.7 |
| 04-Aug-2023 |
martin | Pull up following revision(s), all via patch,
(requested by riastradh in ticket #1699):
distrib/sets/lists/tests/shl.mi: revision 1.14
distrib/sets/lists/tests/shl.mi: revision 1.15
distrib/sets/lists/tests/shl.mi: revision 1.16
tests/libexec/ld.elf_so/helper_def_static/h_def_static.c: revision 1.1
tests/libexec/ld.elf_so/helper_def_dynamic/Makefile: revision 1.1
tests/libexec/ld.elf_so/helper_def_dynamic/Makefile: revision 1.2
tests/libexec/ld.elf_so/helper_onlyuse_static/Makefile: revision 1.1
tests/libexec/ld.elf_so/helper_onlyuse_static/Makefile: revision 1.2
libexec/ld.elf_so/arch/mips/mips_reloc.c: revision 1.75
distrib/sets/lists/tests/mi: revision 1.1265
libexec/ld.elf_so/arch/sh3/mdreloc.c: revision 1.36
libexec/ld.elf_so/rtld.c: revision 1.214
tests/libexec/ld.elf_so/helper_onlydef_static/Makefile: revision 1.1
distrib/sets/lists/debug/mi: revision 1.400
tests/libexec/ld.elf_so/helper_onlydef_static/Makefile: revision 1.2
distrib/sets/lists/debug/mi: revision 1.401
distrib/sets/lists/debug/mi: revision 1.402
tests/libexec/ld.elf_so/helper_dso2/Makefile: revision 1.2
distrib/sets/lists/debug/mi: revision 1.403
tests/libexec/ld.elf_so/helper_symver_dso0/Makefile: revision 1.2
libexec/ld.elf_so/arch/x86_64/mdreloc.c: revision 1.48
distrib/sets/lists/debug/mi: revision 1.406
tests/libexec/ld.elf_so/helper_use_dynamic/Makefile: revision 1.1
tests/libexec/ld.elf_so/helper_use_dynamic/Makefile: revision 1.2
tests/libexec/ld.elf_so/helper_ifunc_dso/Makefile: revision 1.2
libexec/ld.elf_so/arch/sparc64/mdreloc.c: revision 1.70
libexec/ld.elf_so/arch/aarch64/mdreloc.c: revision 1.18
tests/libexec/ld.elf_so/helper_abuse_dynamic/Makefile: revision 1.1
tests/libexec/ld.elf_so/helper_abuse_dynamic/Makefile: revision 1.2
tests/libexec/ld.elf_so/Makefile: revision 1.13
libexec/ld.elf_so/arch/arm/mdreloc.c: revision 1.46
libexec/ld.elf_so/rtld.h: revision 1.146
tests/libexec/ld.elf_so/Makefile: revision 1.14
distrib/sets/lists/debug/shl.mi: revision 1.306
tests/libexec/ld.elf_so/Makefile: revision 1.15
tests/libexec/ld.elf_so/helper_abuse_static/Makefile: revision 1.1
distrib/sets/lists/debug/shl.mi: revision 1.307
tests/libexec/ld.elf_so/Makefile: revision 1.16
tests/libexec/ld.elf_so/helper_abuse_static/Makefile: revision 1.2
distrib/sets/lists/debug/shl.mi: revision 1.308
tests/libexec/ld.elf_so/Makefile: revision 1.17
distrib/sets/lists/debug/shl.mi: revision 1.309
tests/libexec/ld.elf_so/Makefile: revision 1.18
tests/libexec/ld.elf_so/Makefile: revision 1.19
libexec/ld.elf_so/tls.c: revision 1.16
libexec/ld.elf_so/tls.c: revision 1.17
libexec/ld.elf_so/tls.c: revision 1.18
libexec/ld.elf_so/tls.c: revision 1.19
tests/libexec/ld.elf_so/helper_onlydef_static/h_onlydef_static.c: revision 1.1
tests/libexec/ld.elf_so/helper_use_static/h_use_static.c: revision 1.1
tests/libexec/ld.elf_so/helper_use_static/h_use_static.c: revision 1.2
tests/libexec/ld.elf_so/helper_def_static/Makefile: revision 1.1
tests/libexec/ld.elf_so/helper_def_static/Makefile: revision 1.2
libexec/ld.elf_so/arch/hppa/hppa_reloc.c: revision 1.50
distrib/sets/lists/debug/shl.mi: revision 1.310
libexec/ld.elf_so/README.TLS: revision 1.6
distrib/sets/lists/debug/shl.mi: revision 1.311
distrib/sets/lists/debug/shl.mi: revision 1.314
tests/libexec/ld.elf_so/helper_dso3/Makefile: revision 1.2
tests/libexec/ld.elf_so/helper_symver_dso1/Makefile: revision 1.4
libexec/ld.elf_so/arch/powerpc/ppc_reloc.c: revision 1.63
tests/libexec/ld.elf_so/helper_def_dynamic/h_def_dynamic.c: revision 1.1
tests/libexec/ld.elf_so/helper_onlydef/Makefile: revision 1.1
tests/libexec/ld.elf_so/helper_onlydef/Makefile: revision 1.2
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.10
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.11
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.12
libexec/ld.elf_so/map_object.c: revision 1.66
tests/libexec/ld.elf_so/helper.mk: revision 1.1
libexec/ld.elf_so/arch/sparc/mdreloc.c: revision 1.57
libexec/ld.elf_so/map_object.c: revision 1.67
tests/libexec/ld.elf_so/helper_onlydef/h_onlydef.c: revision 1.1
tests/libexec/ld.elf_so/helper_symver_dso2/Makefile: revision 1.4
tests/libexec/ld.elf_so/helper_use_static/Makefile: revision 1.1
tests/libexec/ld.elf_so/helper_use_static/Makefile: revision 1.2
tests/libexec/ld.elf_so/helper_use_static/Makefile: revision 1.3
tests/libexec/ld.elf_so/helper_use_dynamic/h_use_dynamic.c: revision 1.1
tests/libexec/ld.elf_so/helper_abuse_static/h_abuse_static.c: revision 1.1
libexec/ld.elf_so/arch/riscv/mdreloc.c: revision 1.9
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.1
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.2
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.3
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.4
tests/libexec/ld.elf_so/helper_onlyctor_dynamic/Makefile: revision 1.1
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.5
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.6
libexec/ld.elf_so/arch/m68k/mdreloc.c: revision 1.34
tests/libexec/ld.elf_so/helper_onlyctor_dynamic/Makefile: revision 1.2
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.7
libexec/ld.elf_so/arch/i386/mdreloc.c: revision 1.42
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.8
libexec/ld.elf_so/arch/i386/mdreloc.c: revision 1.43
libexec/ld.elf_so/arch/or1k/mdreloc.c: revision 1.4
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.9
tests/libexec/ld.elf_so/helper_onlyuse_dynamic/Makefile: revision 1.1
tests/libexec/ld.elf_so/helper_onlyuse_dynamic/Makefile: revision 1.2
tests/libexec/ld.elf_so/helper_abuse_dynamic/h_abuse_dynamic.c: revision 1.1
tests/libexec/ld.elf_so/helper_onlyctor_dynamic/h_onlyctor_dynamic.c: revision 1.1
tests/libexec/ld.elf_so/helper_onlyuse_static/h_onlyuse_static.c: revision 1.1
tests/libexec/ld.elf_so/helper_onlyuse_dynamic/h_onlyuse_dynamic.c: revision 1.1
tests/libexec/ld.elf_so/helper_dso1/Makefile: revision 1.2
distrib/sets/lists/tests/shl.mi: revision 1.12
distrib/sets/lists/tests/shl.mi: revision 1.13
libexec/ld.elf_so/arch/alpha/alpha_reloc.c: revision 1.44
ld.elf_so: New test for extern initial-exec TLS, PR toolchain/50277.
ld.elf_so: Fix extern TLS test to match PR toolchain/50277.
Now it's actually testing the problem.
ld.elf_so: Nix inadvertently committed private test program.
ld.elf_so: Fix set lists for MKDEBUG=yes builds with t_tls_extern.
ld.elf_so: Sprinkle tls debug messages.
ld.elf_so: Make tls alloc debug messages more detailed and greppable.
ld.elf_so: Test variations on PR toolchain/50277.
ld.elf_so: Test extern dynamic TLS too.
ld.elf_so: Factor out logic in TLS tests to make writing more easier.
No functional change intended.
ld.elf_so: Test TLS abuse of static def, dynamic use and vice versa.
ld.elf_so: Shorter test names.
No functional non-cosmetic change intended.
ld.elf_so: Separately test eager and lazy resolution of def tls ptr.
eager: before loading use library
lazy: after loading use library
Add recent ld.elf_so test helpers debug info
ld.elf_so: Add new files to debug/shl.mi.
ld.elf_so: tls_extern dynamic_defabuse_eager must xfail differently.
If a symbol has already been resolved as dynamic TLS, any library
that tries to use it as static TLS cannot be dlopened.
ld.elf_so: Test another edge case of mismatched TLS models.
One library defines a symbol and _doesn't_ use it, so it has no
indication of whether the symbol is for static TLS or dynamic TLS,
and then two other libraries use it in different ways.
ld.elf_so: Test dynamic-then-static abuse via ctor.
ld.elf_so: Fix missing tab in debug/shl.mi in last change.
Fix interactions of initial-exec TLS model and dlopen
(1) If an initial-exec relocation was used for a non-local symbol
(i.e. the definition of the symbol is in a different DSO), the
computation of the static TLS offset used the wrong DSO.
This would effectively mean the wrong address was computed
(PR toolchain/50277, PR pkg/57445).
Fix this by forcing the computation of the correct DSO (the one defining
the symbol).
This code uses __UNCONST to avoid the vast interface changes for this
special case.
(2) If symbols from a DSO loaded via dlopen are used with both
global-dynamic/local-dynamic and initial-exec relocations AND
a initial-exec relocation was resolved first in a thread, a split brain
situation could exist where the dynamic relocations would use one memory
block (separate allocation) and the initial-exec relocations the static
per-thread TLS space.
(3) If the initial-exec relocation in (2) is seen after any thread has
already used a GD/LD allocation, bail out. Since IE relocations are used
only in the GOT, this will prevent the dlopen. This is a bit more
aggressive than necessary, but a full blown reference counting doesn't
seem to be justified.
Avoid using uninitialized variable "symnum" when building with DEBUG
enabled by borrowing the rdbg_symname() macro from arch/x86_64.
ld.elf_so: Sprinkle more debug messages on dlopen and error.
PR pkg/57445
Fix MKDEBUGLIB build by adding these installed files to the debug
set list.
One could argue that these files are not of any use, so why install
them? I don't have a good argument either way, and this is (for
now) a simple work-around for PR bin/57455 Please feel free to
commit a different fix to avoid installing these files at all.
Fix markup of libh_ MKDEBUGLIB=yes only files
TLS variant I archs need to fudge the offset by the size of the TCB.
tests/libexec/ld.elf_so: Fix helper library makefiles.
1. Consolidate logic into a single helper.mk to reduce duplication.
2. Set NO* variables, not MK* variables which are reserved for user.
3. Avoid eager X!= in favour of lazy ${X:sh}.
4. Mark _g.a set list entries obsolete. Never should've been built!
PR misc/57462
|
| 1.197.2.6 |
| 01-Aug-2023 |
martin | Pull up following revision(s) (requested by riastradh in ticket #1690):
libexec/ld.elf_so/rtld.c: revision 1.213
dlopen(3): Read _rtld_objtail under the lock.
|
| 1.197.2.5 |
| 01-Apr-2023 |
martin | Pull up following revision(s) (requested by riastradh in ticket #1624):
libexec/ld.elf_so/rtld.c: revision 1.212
ld.elf_so(8): Make fork take a shared, not exclusive, lock.
We only need to ensure that there are no concurrent modifications to
the rtld data structures in flight, since the threads that began
those modifications will not exist in the child and will therefore be
unable to complete them in the child.
A shared lock suffices to ensure there are no such concurrent
modifications in flight; an exclusive lock is not necessary, and can
cause deadlock if fork is executed from a signal handler, which is
explicitly allowed by POSIX (and our own sigaction(2) man page) which
marks fork as async-signal-safe.
PR lib/56979
|
| 1.197.2.4 |
| 13-May-2020 |
martin | Pull up following revision(s) (requested by chs in ticket #907):
libexec/ld.elf_so/rtld.c: revision 1.205
libexec/ld.elf_so/rtld.h: revision 1.140
libexec/ld.elf_so/symbols.map: revision 1.3
libexec/ld.elf_so/symbols.map: revision 1.4
lib/libc/gen/pthread_atfork.c: revision 1.13
lib/libc/gen/pthread_atfork.c: revision 1.14
libexec/ld.elf_so/rtld.h: revision 1.139
libexec/ld.elf_so/rtld.c: revision 1.204
Introduce intermediate locking for fork, so that the dynamic linker is
in a consistent state. This most importantly avoids races between dlopen
and friends and fork, potentially resulting in dead locks in the child
when it itself tries to acquire locks.
Rename __atomic_fork to __locked_fork and give it &errno as argument.
rtld and libc use different storage, so the initial version would
incorrectly report the failure reason for fork().
There is still a small race condition inside ld.elf_so as it doesn't use
thread-safe errno internally, but that's a more contained internal
issue.
|
| 1.197.2.3 |
| 08-Mar-2020 |
martin | Pull up following revision(s) (requested by thorpej in ticket #758):
libexec/ld.elf_so/map_object.c: revision 1.61
libexec/ld.elf_so/headers.c: revision 1.68
libexec/ld.elf_so/rtld.c: revision 1.203
PT_GNU_RELRO segments are arranged such that their vaddr + memsz ends
on a linker common page size boundary. However, if the common page size
used by the linker is less than the VM page size being used by the kernel,
this can end up in the middle of a VM page and when the region is write-
protected, this can cause objects in neighboring .data to get incorrectly
write-protected, resulting in a crash.
Avoid this situation by calculating the end of the RELRO region not by
rounding memsz up to the VM page size, but rather by adding vaddr + memsz
and then truncating to the VM page size.
Fixes PR toolchain/55043.
XXX pullup-9
|
| 1.197.2.2 |
| 09-Dec-2019 |
martin | Pull up following revision(s) (requested by uwe in ticket #534):
libexec/ld.elf_so/rtld.c: revision 1.201
_rtld_relro - fix debug printf format for a size_t argument
|
| 1.197.2.1 |
| 18-Sep-2019 |
martin | Pull up following revision(s) (requested by kamil in ticket #209):
libexec/ld.elf_so/rtld.c: revision 1.198
Return the ELF loader dl_phdr_info information for dl_iterate_phdr(3)
Sync the behavior of dl_iterate_phdr(3) with Linux/FreeBSD/OpenBSD.
|
| 1.207.2.1 |
| 31-May-2021 |
cjep | sync with head
|
| 1.212.2.4 |
| 06-Aug-2024 |
snj | Pull up following revision(s) (requested by martin in ticket #775):
libexec/ld.elf_so/rtld.c: 1.216
PR 57628: at the end of _rtld_init() explicitly initialize the ld.elf_so
local copy of the atomic access support functions for machines that do not
implement all required ops in hardware (like 32bit sparc).
XXX would be better to figure out a way to share this copy with libc
(thereby using half as many RAS sections). But even if we would share it,
we have to init it early enough for ld.elf_so internal uses.
|
| 1.212.2.3 |
| 01-Aug-2023 |
martin | Pull up following revision(s) (requested by riastradh in ticket #300):
libexec/ld.elf_so/rtld.h: revision 1.145
libexec/ld.elf_so/symbol.c: revision 1.74
libexec/ld.elf_so/rtld.h: revision 1.147
libexec/ld.elf_so/symbol.c: revision 1.75
libexec/ld.elf_so/symbol.c: revision 1.76
tests/libexec/ld.elf_so/t_hash.c: revision 1.1
libexec/ld.elf_so/Makefile: revision 1.145
libexec/ld.elf_so/Makefile: revision 1.146
libexec/ld.elf_so/Makefile: revision 1.147
libexec/ld.elf_so/reloc.c: revision 1.118
distrib/sets/lists/tests/mi: revision 1.1280
libexec/ld.elf_so/rtld.c: revision 1.215
tests/libexec/ld.elf_so/Makefile: revision 1.21
libexec/ld.elf_so/hash.c: revision 1.1
libexec/ld.elf_so/hash.h: revision 1.1
distrib/sets/lists/debug/mi: revision 1.409
The SysV ABI specifies that the symbol hash function should return only 32
bits of hash. Unfortunately due to an implementation bug and the fact that
the return type is unsigned long which is 64 bits in LP64, this can fail
in some cases: "\xff\x0f\x0f\x0f\x0f\x0f\x12". See:
"https://maskray.me/blog/2023-04-12-elf-hash-function
From Ed Maste @ FreeBSD:
https://cgit.freebsd.org/src/commit/?id=29e3a06510823edbb91667d21f530d3ec778116d
Need to write Unit Tests for this.
Oops wrong mask.
ld.elf_so: Split SRCS onto multiple lines.
Makes updates easier.
No functional change intended.
ld.elf_so: Sort SRCS.
No functional change intended.
ld.elf_so: Split hash functions into a separate file.
This way we can test them in isolation.
No functional change intended.
ld.elf_so: Add some known-answer tests for hash functions.
Make sure the testing mechanism detects the traditional overflow bug.
|
| 1.212.2.2 |
| 01-Aug-2023 |
martin | Pull up following revision(s) (requested by riastradh in ticket #297):
distrib/sets/lists/tests/shl.mi: revision 1.14
distrib/sets/lists/tests/shl.mi: revision 1.15
distrib/sets/lists/tests/shl.mi: revision 1.16
tests/libexec/ld.elf_so/helper_def_static/h_def_static.c: revision 1.1
tests/libexec/ld.elf_so/helper_def_dynamic/Makefile: revision 1.1
tests/libexec/ld.elf_so/helper_def_dynamic/Makefile: revision 1.2
tests/libexec/ld.elf_so/helper_onlyuse_static/Makefile: revision 1.1
tests/libexec/ld.elf_so/helper_onlyuse_static/Makefile: revision 1.2
libexec/ld.elf_so/arch/mips/mips_reloc.c: revision 1.75
distrib/sets/lists/tests/mi: revision 1.1265
libexec/ld.elf_so/arch/sh3/mdreloc.c: revision 1.36
libexec/ld.elf_so/rtld.c: revision 1.214
tests/libexec/ld.elf_so/helper_onlydef_static/Makefile: revision 1.1
distrib/sets/lists/debug/mi: revision 1.400
tests/libexec/ld.elf_so/helper_onlydef_static/Makefile: revision 1.2
distrib/sets/lists/debug/mi: revision 1.401
distrib/sets/lists/debug/mi: revision 1.402
tests/libexec/ld.elf_so/helper_dso2/Makefile: revision 1.2
distrib/sets/lists/debug/mi: revision 1.403
tests/libexec/ld.elf_so/helper_symver_dso0/Makefile: revision 1.2
libexec/ld.elf_so/arch/x86_64/mdreloc.c: revision 1.48
distrib/sets/lists/debug/mi: revision 1.406
tests/libexec/ld.elf_so/helper_use_dynamic/Makefile: revision 1.1
tests/libexec/ld.elf_so/helper_use_dynamic/Makefile: revision 1.2
tests/libexec/ld.elf_so/helper_ifunc_dso/Makefile: revision 1.2
libexec/ld.elf_so/arch/sparc64/mdreloc.c: revision 1.70
libexec/ld.elf_so/arch/aarch64/mdreloc.c: revision 1.18
tests/libexec/ld.elf_so/helper_abuse_dynamic/Makefile: revision 1.1
tests/libexec/ld.elf_so/helper_abuse_dynamic/Makefile: revision 1.2
tests/libexec/ld.elf_so/Makefile: revision 1.13
libexec/ld.elf_so/arch/arm/mdreloc.c: revision 1.46
libexec/ld.elf_so/rtld.h: revision 1.146
tests/libexec/ld.elf_so/Makefile: revision 1.14
distrib/sets/lists/debug/shl.mi: revision 1.306
tests/libexec/ld.elf_so/Makefile: revision 1.15
tests/libexec/ld.elf_so/helper_abuse_static/Makefile: revision 1.1
distrib/sets/lists/debug/shl.mi: revision 1.307
tests/libexec/ld.elf_so/Makefile: revision 1.16
tests/libexec/ld.elf_so/helper_abuse_static/Makefile: revision 1.2
distrib/sets/lists/debug/shl.mi: revision 1.308
tests/libexec/ld.elf_so/Makefile: revision 1.17
distrib/sets/lists/debug/shl.mi: revision 1.309
tests/libexec/ld.elf_so/Makefile: revision 1.18
tests/libexec/ld.elf_so/Makefile: revision 1.19
libexec/ld.elf_so/tls.c: revision 1.16
libexec/ld.elf_so/tls.c: revision 1.17
libexec/ld.elf_so/tls.c: revision 1.18
libexec/ld.elf_so/tls.c: revision 1.19
tests/libexec/ld.elf_so/helper_onlydef_static/h_onlydef_static.c: revision 1.1
tests/libexec/ld.elf_so/helper_use_static/h_use_static.c: revision 1.1
tests/libexec/ld.elf_so/helper_use_static/h_use_static.c: revision 1.2
tests/libexec/ld.elf_so/helper_def_static/Makefile: revision 1.1
tests/libexec/ld.elf_so/helper_def_static/Makefile: revision 1.2
libexec/ld.elf_so/arch/hppa/hppa_reloc.c: revision 1.50
distrib/sets/lists/debug/shl.mi: revision 1.310
libexec/ld.elf_so/README.TLS: revision 1.6
distrib/sets/lists/debug/shl.mi: revision 1.311
distrib/sets/lists/debug/shl.mi: revision 1.314
tests/libexec/ld.elf_so/helper_dso3/Makefile: revision 1.2
tests/libexec/ld.elf_so/helper_symver_dso1/Makefile: revision 1.4
libexec/ld.elf_so/arch/powerpc/ppc_reloc.c: revision 1.63
tests/libexec/ld.elf_so/helper_def_dynamic/h_def_dynamic.c: revision 1.1
tests/libexec/ld.elf_so/helper_onlydef/Makefile: revision 1.1
tests/libexec/ld.elf_so/helper_onlydef/Makefile: revision 1.2
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.10
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.11
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.12
libexec/ld.elf_so/map_object.c: revision 1.66
tests/libexec/ld.elf_so/helper.mk: revision 1.1
libexec/ld.elf_so/arch/sparc/mdreloc.c: revision 1.57
libexec/ld.elf_so/map_object.c: revision 1.67
tests/libexec/ld.elf_so/helper_onlydef/h_onlydef.c: revision 1.1
tests/libexec/ld.elf_so/helper_symver_dso2/Makefile: revision 1.4
tests/libexec/ld.elf_so/helper_use_static/Makefile: revision 1.1
tests/libexec/ld.elf_so/helper_use_static/Makefile: revision 1.2
tests/libexec/ld.elf_so/helper_use_static/Makefile: revision 1.3
tests/libexec/ld.elf_so/helper_use_dynamic/h_use_dynamic.c: revision 1.1
tests/libexec/ld.elf_so/helper_abuse_static/h_abuse_static.c: revision 1.1
libexec/ld.elf_so/arch/riscv/mdreloc.c: revision 1.9
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.1
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.2
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.3
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.4
tests/libexec/ld.elf_so/helper_onlyctor_dynamic/Makefile: revision 1.1
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.5
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.6
libexec/ld.elf_so/arch/m68k/mdreloc.c: revision 1.34
tests/libexec/ld.elf_so/helper_onlyctor_dynamic/Makefile: revision 1.2
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.7
libexec/ld.elf_so/arch/i386/mdreloc.c: revision 1.42
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.8
libexec/ld.elf_so/arch/i386/mdreloc.c: revision 1.43
libexec/ld.elf_so/arch/or1k/mdreloc.c: revision 1.4
tests/libexec/ld.elf_so/t_tls_extern.c: revision 1.9
tests/libexec/ld.elf_so/helper_onlyuse_dynamic/Makefile: revision 1.1
tests/libexec/ld.elf_so/helper_onlyuse_dynamic/Makefile: revision 1.2
tests/libexec/ld.elf_so/helper_abuse_dynamic/h_abuse_dynamic.c: revision 1.1
tests/libexec/ld.elf_so/helper_onlyctor_dynamic/h_onlyctor_dynamic.c: revision 1.1
tests/libexec/ld.elf_so/helper_onlyuse_static/h_onlyuse_static.c: revision 1.1
tests/libexec/ld.elf_so/helper_onlyuse_dynamic/h_onlyuse_dynamic.c: revision 1.1
tests/libexec/ld.elf_so/helper_dso1/Makefile: revision 1.2
distrib/sets/lists/tests/shl.mi: revision 1.12
distrib/sets/lists/tests/shl.mi: revision 1.13
libexec/ld.elf_so/arch/alpha/alpha_reloc.c: revision 1.44
(all via patch)
ld.elf_so: New test for extern initial-exec TLS, PR toolchain/50277.
ld.elf_so: Fix extern TLS test to match PR toolchain/50277.
Now it's actually testing the problem.
ld.elf_so: Nix inadvertently committed private test program.
ld.elf_so: Fix set lists for MKDEBUG=yes builds with t_tls_extern.
ld.elf_so: Sprinkle tls debug messages.
ld.elf_so: Make tls alloc debug messages more detailed and greppable.
ld.elf_so: Test variations on PR toolchain/50277.
ld.elf_so: Test extern dynamic TLS too.
ld.elf_so: Factor out logic in TLS tests to make writing more easier.
No functional change intended.
ld.elf_so: Test TLS abuse of static def, dynamic use and vice versa.
ld.elf_so: Shorter test names.
No functional non-cosmetic change intended.
ld.elf_so: Separately test eager and lazy resolution of def tls ptr.
eager: before loading use library
lazy: after loading use library
Add recent ld.elf_so test helpers debug info
ld.elf_so: Add new files to debug/shl.mi.
ld.elf_so: tls_extern dynamic_defabuse_eager must xfail differently.
If a symbol has already been resolved as dynamic TLS, any library
that tries to use it as static TLS cannot be dlopened.
ld.elf_so: Test another edge case of mismatched TLS models.
One library defines a symbol and _doesn't_ use it, so it has no
indication of whether the symbol is for static TLS or dynamic TLS,
and then two other libraries use it in different ways.
ld.elf_so: Test dynamic-then-static abuse via ctor.
ld.elf_so: Fix missing tab in debug/shl.mi in last change.
Fix interactions of initial-exec TLS model and dlopen
(1) If an initial-exec relocation was used for a non-local symbol
(i.e. the definition of the symbol is in a different DSO), the
computation of the static TLS offset used the wrong DSO.
This would effectively mean the wrong address was computed
(PR toolchain/50277, PR pkg/57445).
Fix this by forcing the computation of the correct DSO (the one defining
the symbol).
This code uses __UNCONST to avoid the vast interface changes for this
special case.
(2) If symbols from a DSO loaded via dlopen are used with both
global-dynamic/local-dynamic and initial-exec relocations AND
a initial-exec relocation was resolved first in a thread, a split brain
situation could exist where the dynamic relocations would use one memory
block (separate allocation) and the initial-exec relocations the static
per-thread TLS space.
(3) If the initial-exec relocation in (2) is seen after any thread has
already used a GD/LD allocation, bail out. Since IE relocations are used
only in the GOT, this will prevent the dlopen. This is a bit more
aggressive than necessary, but a full blown reference counting doesn't
seem to be justified.
Avoid using uninitialized variable "symnum" when building with DEBUG
enabled by borrowing the rdbg_symname() macro from arch/x86_64.
ld.elf_so: Sprinkle more debug messages on dlopen and error.
PR pkg/57445
Fix MKDEBUGLIB build by adding these installed files to the debug
set list.
XXX
One could argue that these files are not of any use, so why install
them? I don't have a good argument either way, and this is (for
now) a simple work-around for PR bin/57455 Please feel free to
commit a different fix to avoid installing these files at all.
Fix markup of libh_ MKDEBUGLIB=yes only files
TLS variant I archs need to fudge the offset by the size of the TCB.
tests/libexec/ld.elf_so: Fix helper library makefiles.
1. Consolidate logic into a single helper.mk to reduce duplication.
2. Set NO* variables, not MK* variables which are reserved for user.
3. Avoid eager X!= in favour of lazy ${X:sh}.
4. Mark _g.a set list entries obsolete. Never should've been built!
PR misc/57462
|
| 1.212.2.1 |
| 01-Aug-2023 |
martin | Pull up following revision(s) (requested by riastradh in ticket #288):
libexec/ld.elf_so/rtld.c: revision 1.213
dlopen(3): Read _rtld_objtail under the lock.
|
| 1.217.2.1 |
| 02-Aug-2025 |
perseant | Sync with HEAD
|
