A current bug in the hppa binutils code causes
relative relocations to be mixed with OPD relocations.
The OPD handling code in ld.so requires a relocation to
setup one of the data structures.
At startup ld.so tries to use the structure to handle
an OPD relocation *before* the structure is completely
setup by the relative relocation and this causes a crash.
This code is a workaround and a bandaid, the real fix
is in the static linker, but until then we must avoid
relocations in dl-fptr.c.
We copy dl-fptr.c from generic code, modify it, and
adjust the headers to fixup the structure at runtime
instead of having the relocation do this for us
automatically.
This patch removes the elf/ directory, moving any
special configury down a directory e.g. TLS checks.
This patch also implements the required crti.S
and crtn.S files, verifying that they match the
current implementation.
The signal.h and sys/ucontext.h headers no longer
need to be included directly into procfs.h. This
syncrhonizes this file with other canonical targets
and makes maintenance easier.
Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>
This patch updates sysdep-cancel.h to include the
new no-cancel wrapper and provides CFI directives
for all of the assembly. The CFI directives should
allow unwinding information to be generated.
Signed-off-by: Carlos O'Donell <carlos@sytemhalted.org>
We now require NPTL and TLS to build glibc therefore
the hppa linuxthreads support is no longer needed.
Debian has already transitioned to NPTL support and
we will continue to work out NPTL issues.
Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>
Update fcntl.h to match canonical i386 fcntl.h, but
update constants to match hppa linux kernel values.
Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>
Add hidden aliases for fegetenv, feupdateenv, and
ftestexcept. This avoids libc needing to go through
the PLT for these functions.
Signed-off-by: Carlos O'Donell <carlos@codesourcery.com>
The following patch adds hppa specific files
that define the various _CLOEXEC and _NONBLOCK
values in order to match the ones from the kernel.
Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>
Tested-by: Carlos O'Donell <carlos@systemhalted.org>
In a multithreaded environment the call to vfork was
incorrectly creating a stack frame. Given that the
child unwinds the stack frame first to call exec, it
will corrupt any values the parent stored in the stack
frame. The solution is to avoid creating a stack frame
unless required to call an error function, in which case
we are assured no child was created.
The getcontext, and setcontext functions should
not adjust the stack, and should load the stack
pointer from the machine context. Calling makecontext
should create a frame for spilled incoming arguments,
and sync uc_stack.ss_sp to the machine context.
We do not support calling getcontext, modifying ss_sp,
and calling setcontext directly.
The function __set_cr27() uses the `ble`
instruction without marking the link register
r31 as clobbered. This change adds r31 to the
list of clobbers. The TLS thread register is
cr27 and is set by calling __set_cr27().
The initial implementation of makecontext()
supported only 8 arguments. This change adds
support for unlimited argument processing given
a large enough stack.
Adjust the value of SOCK_CLOEXEC to match the kernel
value used for accept4. This has never worked in the
past, and all old applications are broken, therefore
we change this value to match the kernel value.
Update F_SETOWN_EX and F_GETOWN_EX. Rearrange
the file to match other targets, reducing future
diffs against other targets and making maintenance
easier.
In the switch to NPTL the pthrad_mutex_t, pthread_cond_t,
and pthread_rwlock_t structures were made binary compatible
with the Linuxthread versions. However, their aligment when
embedded in other structures was changed. When rebuilding
libstdc++ this was detected, and the following changes return
the structures to their original Linuxthreads alignments.
2009-11-25 Carlos O'Donell <carlos@codesourcery.com>
* sysdeps/unix/sysv/linux/hppa/nptl/bits/pthreadtypes.h:
Use correct alignment for pthread_mutex_t, pthread_cond_t,
and pthread_rwlock_t.
Cast oldval to the same type as ret to avoid warnings when
including atomic.h.
2009-11-22 Carlos O'Donell <carlos@codesourcery.com>
* sysdeps/unix/sysv/linux/hppa/bits/atomic.h: Avoid warnings
by casting oldval to int.
Place socket.h in the correct location.
2009-11-15 Carlos O'Donell <carlos@codesourcery.com>
[BZ #6676]
* sysdeps/unix/sysv/linux/hppa/socket.h: Move from here...
* sysdeps/unix/sysv/linux/hppa/bits/socket.h: ... to here.
The current ELF_MACHINE_LOAD_ADDRESS used by the generic
function pointer code was not safe for use before relocation.
The macro has been rewritten to use only PC relative loads.
2009-11-15 Carlos O'Donell <carlos@codesourcery.com>
* sysdeps/hppa/dl-fptr.h: Update copyright year.
Reduce ELF_MACHINE_BOOT_FPTR_TABLE_LEN to 64.
Implement ELF_MACHINE_LOAD_ADDRESS using PC relative loads.
Several constants are now defined in a generic file and no longer
need to be defined in the hppa specific file.
2009-11-15 Carlos O'Donell <carlos@codesourcery.com>
* sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h:
Remove FUTEX_WAITERS, FUTEX_OWNER_DIED, and FUTEX_TID_MASK.
[BZ #10527] Provide corrected socket constants that match the
kernel values.
2009-11-15 Carlos O'Donell <carlos@codesourcery.com>
Aurelian Jarno <aurelien@aurel32.net>
[BZ #10527]
* sysdeps/unix/sysv/linux/hppa/socket.h: New file.
[BZ #6676] Use PIC relocations in start.S to support the use of -fPIE
on hppa.
2009-11-15 Carlos O'Donell <carlos@codesourcery.com>
[BZ #6676]
* sysdeps/hppa/elf/start.S: Use R_PARISC_DLTIND* relocations
to support -fPIE.
[BZ #10920] Use the new generic override to specify the hppa
specific libgcc_s.so.4 version number. Remove the files which
hppa no longer has to duplicate in order to accomplish
overriding libgcc_s.so version number.
2009-11-08 Carlos O'Donell <carlos@codesourcery.com>
[BZ #10920]
* sysdeps/hppa/libgcc_s.h: New file.
* sysdeps/unix/sysv/linux/hppa/nptl/unwind-forcedunwind.c: Remove.
* sysdeps/unix/sysv/linux/hppa/nptl/unwind-resume.c: Remove.
This version of the NPTL POSIX thread ABI for hppa does
not break backwards compatibility with the the old
Linuxthreads ABI, and is therefore suitable for release
by distributions.
sysdeps/unix/sysv/linux/hppa/
* internaltypes.h: New file.
sysdeps/unix/sysv/linux/hppa/nptl/
* pthreadP.h: New file.
* pthread.h: New file.
* pthread_cond_broadcast.c: New file.
* pthread_cond_destroy.c: New file.
* pthread_cond_init.c: New file.
* pthread_cond_signal.c: New file.
* pthread_cond_timedwait.c: New file.
* pthread_cond_wait.c: New file.
* bits/pthreadtypes.h: Make pthread_mutex_t,
pthread_rwlock_t, and pthread_cond_t backwards
compatible.
* sysdeps/unix/sysv/linux/hppa/nptl/unwind-forcedunwind.c:
Update from nptl/sysdeps/pthread/unwind-forcedunwind.c
* sysdeps/unix/sysv/linux/hppa/nptl/unwind-resume.c:
Update from nptl/sysdeps/pthread/unwind-resume.c
