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Author SHA1 Message Date
Jan Kratochvil 57e5696463 Mark Wielaard <mwielaard@redhat.com> writes: 
On some systems executable stacks are denied. Since libunwind and the
tests don't actually need executable stacks this patch marks all
assembly files as not needing it.

The original patch comes from frysk:

2007-04-05  Jan Kratochvil  <jan.kratochvil@redhat.com>

    * src/hppa/getcontext.S, src/hppa/setcontext.S, src/hppa/siglongjmp.S,
    src/ia64/Ginstall_cursor.S, src/ia64/Linstall_cursor.S,
    src/ia64/dyn_info_list.S, src/ia64/getcontext.S, src/ia64/longjmp.S,
    src/ia64/setjmp.S, src/ia64/siglongjmp.S, src/ia64/sigsetjmp.S,
    src/ppc64/longjmp.S, src/ppc64/siglongjmp.S, src/x86/longjmp.S,
    src/x86/siglongjmp.S, src/x86_64/longjmp.S, src/x86_64/setcontext.S,
    src/x86_64/siglongjmp.S: Stack should be non-executable, for SELinux.

I added a couple more markers for new files in current libunwind.

Before this patch you would get the following on selinux enabled
systems without allow_exec_stack: error while loading shared
libraries:

libunwind.so.7: cannot enable executable stack as shared object
	requires: Permission denied

After the patch that error disappears and all test results are similar
to the results on systems without executable stack protection.
 2007-10-01 08:35:01 -06:00
Jose Flavio Aguilar Paulino c340d04279 [PPC32] Make get_func_addr() a no-op function. 
[PPC64] Add .../lib64 library directory when targeting ppc64.
 2007-09-20 11:11:37 -06:00
Jose Flavio Aguilar Paulino 4499bb29a6 [PPC32] First check-in to add preliminary support for Linux/PPC32. 2007-09-12 21:52:25 -06:00
David Mosberger-Tang 6d75df39b5 Regenerate Makefile.in. 2007-08-27 15:31:10 -06:00
Jose Flavio Aguilar Paulino 32e2187fab [PPC64] Get "make check" to work on PPC64 Linux. Add a README entry 
describing the expected results.
 2007-08-27 09:11:37 -06:00
Jose Flavio Aguilar Paulino 3e24581adc [PPC64] Add PPC64 entry to README and fix David's typo in ppc64/get_func_addr.c 2007-08-24 10:54:00 -06:00
David Mosberger-Tang e6b9f350f7 Introduce a tdep_get_func_addr_hook() in the ELF lookup_symbol() 
routine and add address-space argument.  This is needed because on
PPC64, a the function-name symbol refers to a function descriptor
(unlike, for example, on ia64, where the @fptr() operator is needed to
refer to a function descriptor).  Thus, in order to look up the name
of a function, we need to dereference the function descriptor.  To
make matters more "interesting", the function descriptors are normally
resolved by the dynamic linker, so we can't get their values from the
ELF file.  Instead, we have to read them from the running image, hence
the need for the address-space argument.
 2007-08-22 13:02:09 -06:00
David Mosberger-Tang 03e05b4138 Fix two minor compiler-warnings. 2007-08-22 12:57:49 -06:00
David Mosberger-Tang 7fdd022ccf Update autoconf files. 2007-08-09 21:18:15 -06:00
Arun Sharma bcca3ddcc0 [x86-64] Fix cross-compilation. setcontext.S can only be built natively. 2007-08-07 21:09:12 -06:00
David Mosberger-Tang 297315675e Recreate autoconf files. 2007-08-06 20:27:29 -06:00
David Mosberger-Tang 5c95d139df Cleanup some files from previous patch and rerurn autoconf tools. 2007-08-06 19:59:28 -06:00
Arun Sharma 3afd613545 [X86-64]: Instead of auto-generating _u_context_i.h, hardcode the 
necessary offsets in offsets.h as is done for other
	  platforms.  This fixes cross-builds.
 2007-08-06 19:58:12 -06:00
David Mosberger-Tang fad8b04c9f Rebuilt configure and Makefile.in files. 2007-08-06 19:56:28 -06:00
Jose Flavio Aguilar Paulino b33021e4b2 Add PPC64 support. 2007-08-02 09:59:43 -06:00
David Mosberger-Tang a6393c0be1 Merge ../libunwind-v0.98 2007-06-06 20:58:56 -06:00
Andreas Schwab 09c8c7d0f3 (unw_create_addr_space): Fix address-leak that triggered when function 
was called with an unsupported "byte_order".

Signed-off-by: David Mosberger-Tang <dmosberger@gmail.com>
 2007-06-06 20:55:36 -06:00
David Mosberger-Tang 7923ae31a0 Re-run aclocal and automake to update Makefiles so new files (e.g., 
x86_64/gen_offsets.c) get distributed.
 2007-04-10 20:35:15 -06:00
Arun Sharma 497b987043 Add gen-offsets to the Makefile 
This is so that the source file gets distributed and _ucontext_i.h is
generated properly on the target machine.

Signed-off-by: Arun Sharma <arun.sharma@google.com>
 2007-04-10 20:18:56 -06:00
Arun Sharma 31440e9796 Make libunwind pass C++ exceptions correctly 
When libunwind is linked with a C++ program that throws exceptions,
the exception that's thrown is passed in %rax. However, libc's
setcontext clears %rax, causing problems.

This patch implements a setcontext that doesn't clobber rax.

TBD: Add dwarf CFI annotations

Signed-off-by: Arun Sharma <arun.sharma@google.com>
 2007-04-05 20:40:41 -06:00
Arun Sharma 55fe524775 Cleanup the hash() function copied from ia64 
Fixes the compiler warning on x86-32.

Signed-off-by: Arun Sharma <arun.sharma@google.com>
 2006-08-16 15:43:49 -06:00
Arun Sharma a5d0c1f8b7 Remove HAVE___THREAD. This was never tested. 
Signed-off-by: Arun Sharma <arun.sharma@google.com>
 2006-08-16 15:41:32 -06:00
David Mosberger-Tang 62bacfcf1f [x86-64] Minor reformatting for GNU-style and use memset() in lieu of bzero(). 2006-08-10 21:34:31 -06:00
Arun Sharma (अरुण) 795529eee3 [x86-64] Add a known good address cache. 
This improves the performance of Lperf-simple from 500ns to 195ns
on the avg.

Signed-off-by: Arun Sharma <arun.sharma@google.com>
 2006-08-10 21:30:01 -06:00
David Mosberger-Tang bde67706ed Delete some backup files that accidentally made it into git. 2006-07-27 21:30:19 -06:00
Arun Sharma 11ea1275bd [dwarf] The sword() function in Gexpr.c doesn't do what's intended. 
Yes, it casts to signed, but then converts right back to
unsigned via the return type.  Fixed thus.

Signed-off-by: Richard Henderson <rth@redhat.com>
Signed-off-by: Arun Sharma <arun.sharma@google.com>
 2006-07-26 22:12:10 -06:00
Arun Sharma cdb96f333c [x86] (common_init): Fix spurious errors caused by uninitialized members. 
Signed-off-by: Richard Henderson <rth@redhat.com>
Signed-off-by: Arun Sharma <arun.sharma@google.com>
 2006-07-26 22:09:10 -06:00
Arun Sharma 8297866bd4 [x86-64] (unw_step): Further refine handling of functions without unwind-info. 
CFA should be incremented by 16 in the hope that the previous frame
may have valid unwind info.

Also increase the default frame pointer recognition heuristic from 4k
to 16k.

Signed-off-by: Andrey Veskov <Andrey.Veskov@intel.com>
Signed-off-by: Arun Sharma <arun.sharma@google.com>
 2006-07-26 22:06:48 -06:00
Arun Sharma 06d2ffa41a [x86-64] (unw_step): Improve handling of functions which lack unwind info. 
If following the frame-chain leads to a frame >= 4KB away, we conclude that
the frame-pointer isn't really valid.
 2006-07-26 22:04:40 -06:00
Arun Sharma 7c0907634d [x86-64] (unw_is_signal_frame): If access mem fails, it's not a signal frame. 2006-07-26 21:58:27 -06:00
Arun Sharma 58888a5060 (dwarf_find_save_locs): Also apply register-state after parsing the FDE 2006-07-26 21:55:09 -06:00
Arun Sharma 527225e492 [x86-64] Make a best effort at validating pointers before dereferencing them. 
Signed-off-by: Arun Sharma <arun.sharma@google.com>
 2006-07-26 21:46:39 -06:00
Arun Sharma 4312719cbc [dwarf] Need to guard against multiple threads accessing the rs cache. 
Signed-off-by: Arun Sharma <arun.sharma@google.com>
 2006-07-26 21:44:38 -06:00
Arun Sharma c5dc3c150a [dwarf] Allow return address column to differ from function to function. 
Signed-off-by: Andrey Veskov <Andrey.Veskov@intel.com>
Signed-off-by: Arun Sharma <arun.sharma@google.com>
 2006-07-26 21:29:50 -06:00
Arun Sharma 60b7af702a (dwarf_find_save_locs): Add a comment. 
Now that dwarf_find_save_locs() not just finds the save-locations but
also updates the cursor-state, document this fact (the function really
is misnamed now).
 2006-07-26 21:25:37 -06:00
Arun Sharma 3dfde7a3f0 (dwarf_find_save_locs): put_unwind_info() is not needed in the cached case. 2006-07-26 21:23:30 -06:00
Arun Sharma 00db7f752a Implement a ip -> dwarf_reg_state cache. 
Signed-off-by: Arun Sharma <arun.sharma@google.com>
 2006-07-26 21:18:49 -06:00
David Mosberger-Tang 1a0af36731 Fix forgotten copyright year update. 2006-07-26 15:48:48 -06:00
David Mosberger-Tang 6a89d40236 Fix missed "tdep.h" -> "libunwind_i.h" conversions. 2006-07-26 15:44:23 -06:00
David Mosberger-Tang 8c94e12429 (_UPT_find_proc_info): Fix potential crash due to uninitialized pointer. 
Be sure to clear pi->unwind_info when looking up the kernel table and
not needing the unwind-info.  Otherwise, _UPT_put_unwind_info() may
erroneously call free() on the pointer, even though that space wasn't
malloc'd, leading to crashes..
 2006-07-26 15:43:23 -06:00
David Mosberger-Tang fd2fa63a6c Fix missed merge on setjmp_i.h and siglongjmp.c. 2006-07-26 15:21:52 -06:00
David Mosberger-Tang 69d85f7c14 Restore mi/Ldyn-remote.c. 2006-07-26 15:10:48 -06:00
David Mosberger-Tang 236e370dc5 Remove three Emacs backup-files which accidentially got checked into git. 2006-07-26 14:54:50 -06:00
David Mosberger-Tang 6daeeac60a Revert "Initial revision" 
This reverts e6446885f4 commit.
 2006-07-26 14:53:49 -06:00
David Mosberger-Tang a369768c27 Revert "Initial revision" 
This reverts 06d223e924 commit.
 2006-07-26 14:47:44 -06:00
David Mosberger-Tang ca69fee8bb Merge ../libunwind-v0.98 
Conflicts:

	include/dwarf_i.h
	include/x86/jmpbuf.h
	include/x86_64/jmpbuf.h
	src/hppa/init.h
	src/mi/Gget_fpreg.c
	src/mi/Gset_fpreg.c
	src/mi/strerror.c
 2006-07-25 21:41:43 -06:00
David Mosberger-Tang af2503e223 Fix bug in libunwind-ptrace which can cause reading of random data. 
(maps_next): After reading less than a full buffer of data, copy
remaining data to the top of the buffer so as to maintain the
invariant that all data between mi->buf and mi->buf_end is valid.
This avoids maps_next() parsing uninitialized data.
 2006-07-25 21:35:30 -06:00
David Mosberger-Tang f176ad6fc6 Bring git v0.98.5 tree in sync with released v0.98.5. 
Sadly, the conversion from Bitkeeper -> CVS -> git wasn't perfect.  Or
so it seems.
 2006-07-25 21:32:28 -06:00
hp.com!davidm 36a0275014 Allow write-access to UNW_IA64_BSP and UNW_REG_SP. 
(Logical change 1.303)
 2005-05-20 15:32:18 +00:00
hp.com!davidm cf2a44ca49 Use update_nat() instead of equivalent open code. 
(Logical change 1.301)
 2005-05-20 14:58:46 +00:00
hp.com!davidm f5de64f9f7 If r1 has been saved in an ABI-specific frame 
(such as an interrupt frame), access the saved
value.  Otherwise, pick it up from the unwind-info
for the matching IP.

(Logical change 1.300)
 2005-05-20 14:50:54 +00:00
hp.com!davidm 399f120c96 Drop unused readonly variable. 
(Logical change 1.299)
 2005-05-20 14:13:01 +00:00
hp.com!davidm 3fa950e818 Remove early-out test when IP is zero. 
(Logical change 1.298)
 2005-05-20 13:35:32 +00:00
hp.com!davidm 19e3bf3ea6 (rbs_switch): Use rbs_get_base() to determine the size of the register 
backing store.

(Logical change 1.297)
 2005-05-20 13:13:07 +00:00
hp.com!davidm 9724ac492c (common_init): Use rbs_get_base() to determine size of register-backing store. 
(Logical change 1.297)
 2005-05-20 13:13:07 +00:00
hp.com!davidm 080f8423d9 Read sp and bsp via ia64_get() and then pass them to common_init(). 
(Logical change 1.296)
 2005-05-20 12:47:59 +00:00
hp.com!davidm 50bbc1fe3d (set_as_arg): New function. 
(get_initial_stack_pointers): Likewise.
(unw_init_local): Use new functions to make code more readable and add
	Linux kernel support.

(Logical change 1.296)
 2005-05-20 12:47:59 +00:00
hp.com!davidm 84bd124a24 (inlined_uc_addr): Remove UNW_IA64_AR_BSP. We no longer need this ugly hack 
since the initial BSP is now passed directly into common_init().

(Logical change 1.296)
 2005-05-20 12:47:59 +00:00
hp.com!davidm 4992f1c936 (common_init): Take initial sp and bsp values as arguments instead of 
reading them via ia64_get().

(Logical change 1.296)
 2005-05-20 12:47:59 +00:00
hp.com!davidm 97b483dcaa Drop include of "mempool.h", which causes problems in the kernel, due to 
a conflicting <linux/mempool.h>.
(SOS_MEMORY_SIZE): Move to libunwind_i.h.

(Logical change 1.295)
 2005-05-20 11:28:16 +00:00
hp.com!davidm 1b63be3f89 (parse_dynamic): Make it a dummy-function of _U_dyn_op isn't defined, i.e., 
if libunwind-dynamic.h isn't in use (as is the case for the kernel at
	the moment).

(Logical change 1.295)
 2005-05-20 11:28:16 +00:00
hp.com!davidm 7894f0edc0 (ia64_strloc): Move to Grbs.c. 
(Logical change 1.295)
 2005-05-20 11:28:16 +00:00
hp.com!davidm 96407911ee (ia64_strloc): Move here from Ginit.c so it can be shared with the kernel. 
(Logical change 1.295)
 2005-05-20 11:28:16 +00:00
hp.com!davidm 2e35dd035c Regenerate. 
(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm 3e8a50255c Include from tdep-$(arch) directory after the normal incliude directory. 
(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm 32385d36fd Include "tdep-ia64/rse.h" instead of "ia64/rse.h". 
(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm 1228462adc Include "rse.h" instead of "ia64/rse.h". 
Include "libunwind_i.h" instead of "internal.h" and "tdep.h".
Define rbs_cover_and_flush() only for the !UNW_REMOTE_ONLY case.
(ia64_is_big_endian): New macro.
(ia64_get_abi): Likewise.
(ia64_set_abi): Likewise.
(ia64_get_abi_marker): Likewise.

(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm 8e6f3c8485 Include "rse.h" instead of "ia64/rse.h". 
(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm 83820a78d1 Include "libunwind_i.h" instead of "tdep.h". 
Include "tdep-ia64/rse.h" instead of "ia64/rse.h".

(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm 67f90c24be Include "libunwind_i.h" instead of "tdep.h". 
Include "elfxx.c" instead of "elf64.c".

(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm d9e100753f Include "libunwind_i.h" instead of "tdep.h". 
(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm 07b01ad205 Include "libunwind_i.h" instead of "tdep.h" and "internal.h". 
(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm 670dd57e82 Include "libunwind_i.h" instead of "libunwind.h" and a whole bunch of standard 
header files.
Use lock_release instead of mutex_unlock/sigprocmask calls.

(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm 5724bee8c2 Include "libunwind_i.h" instead of "internal.h". 
(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm 19df6612fa Include "libunwind_i.h" instead of "internal.h" and "tdep.h". 
(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm b7adf160ee Include "dwarf_i.h" instead of "dwarf.h". 
(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm c027d98386 Don't include headers already included via unwind_i.h. 
(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm df3d6af467 Don't include <string.h>. 
Include "libunwind_i.h" instead of "tdep.h".

(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm dda1a6d625 Don't include <string.h>. 
Include "libunwind_i.h" instead of "internal.h" and "tdep.h".

(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm 379fb069d2 Don't include <string.h>, <unistd.h>, <sys/types.h>. 
Include "libunwind_i.h" instead of "tdep.h".

(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm 9e8ba174e6 Don't include <string.h> and <stdlib.h>. 
(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm 9fac7579ee Don't include <string.h> and "tdep.h". 
(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm 71acf1d00e Don't include <stdlib.h>. 
Include "libunwind_i.h" instead of "tdep.h".

(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm 03ba50ccaa Don't include <stdlib.h> and <string.h>. 
Include "libunwind_i.h" instead of "tdep.h".

(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm fa2871946a Don't include <assert.h> and <stddef.h>. 
Use ia64_get_abi_marker() instead of directly referencing c->last_abi_marker.
(linux_scratch_loc): When accessing an fp-reg, default to IA64_FPREG_LOC.
	Handle more registers for the Linux interrupt-frame case.
(tdep_access_reg): Use ia64_get_abi() instead of c->as->abi.
	Use ia64_is_big_endian() instead of c->as->big_endian.

(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm 8bb167d4c1 Don't include <alloca.h> and <stdlib.h>. 
(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm 6675be4926 (linux_interrupt): Enable this code for the kernel, too. 
Use ia64_get_abi_marker() instead of c->abi_marker.
	Use ia64_set_abi() instead of storing directly to c->as->abi.

(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm ee6eeb4f7d (get_script_cache): Use HAVE_ATOMIC_H instead of __linux && __KERNEL__. 
(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm 8a1e0a2bcd Auto merged 
2005/05/17 14:14:23-07:00 hp.com!davidm
(tdep_access_reg): Access AR.EC via ec_loc instead of cfm_loc.

(Logical change 1.293)
 2005-05-17 21:28:19 +00:00
hp.com!davidm 26fdb45d76 Auto merged 
2005/05/17 14:14:23-07:00 hp.com!davidm
(linux_sigtramp): Add "prev_cfm_loc" argument.  Use it to set c->ec_loc.
(linux_interrupt): Likewise.
(hpux_sigtramp): Likewise.
(update_frame_state): Copy old cfm_loc to prev_cfm_loc and pass it to
	ABI-specific handlers.  Initialize c->ec_loc to c->cfm_loc by default.

(Logical change 1.293)
 2005-05-17 21:28:19 +00:00
hp.com!davidm a6ba57d556 Auto merged 
2005/05/17 06:10:13-07:00 hp.com!davidm
(tdep_access_reg): Don't rotate contents of UNW_IA64_PR.

(Logical change 1.292)
 2005-05-17 13:24:49 +00:00
hp.com!davidm 8462f1f87d (pr_ltop): Remove. 
(pr_ptol): Remove.

(Logical change 1.292)
 2005-05-17 13:24:49 +00:00
mostang.com!davidm 23884c98cb Rename: src/sigsetjmp.c -> src/setjmp/sigsetjmp.c 
}(Logical change 1.290)
 2005-05-03 09:13:17 +00:00
mostang.com!davidm 4d7f2a5be7 Rename: src/sigsetjmp.c -> src/setjmp/sigsetjmp.c 
(Logical change 1.290)
 2005-05-03 09:13:17 +00:00
mostang.com!davidm 5ac5853589 Rename: src/setjmp.c -> src/setjmp/setjmp.c 
}(Logical change 1.290)
 2005-05-03 09:13:17 +00:00
mostang.com!davidm 8e06df0e52 Rename: src/setjmp.c -> src/setjmp/setjmp.c 
(Logical change 1.290)
 2005-05-03 09:13:17 +00:00
mostang.com!davidm 9bc79a618b Rename: src/dwarf/dwarf-eh.h -> include/dwarf-eh.h 
}(Logical change 1.290)
 2005-05-03 09:13:17 +00:00
mostang.com!davidm 06d223e924 Initial revision 2005-05-03 09:13:17 +00:00
mostang.com!davidm 4e833d43fc Include "setjmp_i.h". 
Abstract ia64-specific code into bsp_match() routine.
Support any platform with at least 2 EH argument registers.

}(Logical change 1.290)
 2005-05-03 09:13:17 +00:00
mostang.com!davidm 4f16756123 Include "setjmp_i.h". 
Abstract ia64-specific code into bsp_match() routine.
Support any platform with at least 2 EH argument registers.

2004/12/06 01:33:16-08:00 mostang.com!davidm
Rename: src/longjmp.c -> src/setjmp/longjmp.c

(Logical change 1.290)
 2005-05-03 09:13:17 +00:00