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Author SHA1 Message Date
Masatake YAMATO
dee708f4bc Missing -llzma in libunwind.pc
liblzuma used in decoding MiniDebuginfo is not listed in
libunwind.pc.

Changes in version 2 of patch:

* Don't check HAVE_LZMA. It is redundant.
* Make liblzma as private libraries in use.

Both are suggested by Mike Frysinger <vapier@gentoo.org>.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
2013-09-11 00:11:17 -07:00
Luca Clementi
af23f0a04b Add Cflags keyword to pkg-config metadata files
pkg-config metadata template files are missing Cflags keyword
which is required to properly compile against libunwind using
PKG_* autoconf macros

Acked-by: Mike Frysinger <vapier@gentoo.org>
2013-08-26 05:40:19 -07:00
Matt Fischer
3b8254d3b9 Fix unwind info freeing code in DWARF parser
The DWARF code allocates its unwind_info objects out of a
memory pool.  The code which frees the object therefore calls
the mempool freeing code.  However, there are cases where the
free code will be run with an unwind_info that was allocated
through a different mechanism (e.g. an ARM exidx table entry).
In these cases, the object should not be freed through the
mempool code.

To correct this, a check was added to ensure that the unwind_info
is of the appropriate type before passing the object along to the
mempool to be freed.
2013-05-19 00:10:18 -07:00
Arun Sharma
d41a453bbf Fix a build error
<elf.h> needs to be included before the check for ELF_CLASS.
2013-05-19 00:04:15 -07:00
Arun Sharma
5eba0f816d Fixup long lines. 2013-05-18 23:20:03 -07:00
Matt Fischer
eac65dc9b8 Add basic support for the QNX operating system
This change adds some special cases to allow libunwind to compile
for QNX.

* QNX's copy of <elf.h> and <link.h> reside in sys/ instead.  To deal
  with this, an AC_CHECK_HEADERS() was added to check for the files
  in both locations.
* Similarly, QNX does not have <endian.h>.  In cases where the file is
  not found, logic was added to refer to QNX-specific macros to determine
  endianness.
* The QCC compiler, which is a wrapper around GCC, cannot handle some
  standard GCC options.  Therefore, logic was added to check for QCC,
  and when it is found, to suppress the use of -lgcc, and to express the
  option -nostartfiles as -Wc,-nostartfiles instead, which is correctly
  passed on to the underlying GCC.
* Finally, the support file os-qnx.c was added, patterned after the existing
  os-*.c files.  Only local image lookup is currently supported (see the
  comments for more information), but this is sufficient for QNX, since
  ptrace is not supported there anyway, and that is the only case where the
  function is required to do remote image lookup.

Change-Id: Ie7934f94a7317bdde59335f2acd4c3a97c0384c1
2013-05-13 10:50:17 -05:00
Yvan Roux
ac6c0a6535 [PATCH] AArch64 port. 2013-05-11 09:20:28 -06:00
Matt Fischer
612e1056f6 Fix symlink install hook
During the install, symlinks are added from libunwind-<arch> to
libunwind-generic.  However, on platforms that don't support
symlinking (such as Windows), the $(LN_S) macro is defined
as 'cp -p' instead.  This works fine, except that since the
target of the symlink is a relative path, the copy will only
succeed if the current directory is the directory that contains
the file.

The solution to this problem suggested in the Autotools manual
(see http://www.gnu.org/software/automake/manual/automake.html#Extending)
is to simply cd into the correct directory first.  This patch
makes that change for the symlinks that are being made during install.

[ edit: use relative path for the link name as well ]
2013-04-19 20:07:02 -07:00
Matt Fischer
61fad17d29 Build crasher test only when coredump support is enabled
The crasher test is used as part of the coredump test suite,
but is being built regardless of whether that support has been
configured or not.  This patch changes the build so that it is
only built when coredump support is enabled.
2013-04-19 17:08:09 -05:00
Matt Fischer
563b0ff314 Added --enable-setjmp
Currently, libunwind-setjmp is built whenever local unwinding is
built.  This patch adds an explicit flag to control it instead.
The default if not specified is to follow the old behavior.
2013-04-19 17:08:03 -05:00
Matt Fischer
abb0957198 Added --enable-ptrace
This change adds a manual override to control building of the ptrace
library, similar to the existing --enable-coredump option.  The
default is set based on the existence of sys/ptrace.h, allowing it
to be automatically disabled for platforms that do not have ptrace.
2013-04-19 16:46:24 -05:00
Dave Lerner
becfc23123 Fix the UNW_TDEP_CURSOR_LEN for ppc32 to fix assert failure
When libunwind is built for a ppc32 target, for example the yocto distro
for qemuppc, and configured with options --enable-debug-frame and
--enable-debug, then the shortfall in the size of the 'opaque' member
of the unw_cursor_t type throws an assert in mi_init().

The calculations for the ppc32 target size of UNW_TDEP_CURSOR_LEN in
the comment block based on the register count plus overhead sum to 280
words. However, that value is not reflected in the ppc32 header, which
defines the size as 200.  Fixing the ppc32 header value to 280 makes the
unw_cursor_t type larger than struct cursor type and the assert tests
true at run-time in mi_init().

Signed-off-by Dave Lerner <dave.lerner@windriver.com>
2013-04-13 11:47:18 -07:00
Arun Sharma
f92ecb6127 dwarf: Fix memory leak
Need to clean up by calling put_unwind_info() on code paths where fetch_proc_info() fails.

Signed-off-by: Arun Sharma <asharma@fb.com>
2013-04-02 21:19:56 -07:00
dave lerner
8028a537dd unw_is_signal_frame should return false/0 for bad addresses
access_mem() could fail and return a non-zero value, which callers
interpret as boolean true.

Signed-off-by: Dave Lerner <dave.lerner@windriver.com>
2013-03-10 14:59:44 -07:00
Chris January
679b65cd22 dwarf: Fix the order of the operands to the relational operators
dwarf_eval_expr are reversed compared with the DWARF spec.
2013-02-04 19:36:33 -08:00
Ladislav Michl
10b064ffe9 Support building with older compilers.
Add a check for __builtin_unreachable.
2012-11-24 21:37:07 -08:00
Arun Sharma
ae3dd9417a Add known test failures to XFAIL_TESTS 2012-10-27 19:37:45 -07:00
Arun Sharma
d7322f0f64 Update to v1.1 2012-10-05 21:54:17 -07:00
Tommi Rantala
adae66d2e2 Fix x86-64 debug build -Wformat warning
src/x86_64/Gstep.c: In function '_ULx86_64_step':
src/x86_64/Gstep.c:204:4: warning: unknown conversion type character 'r' in format [-Wformat]
2012-10-05 21:24:36 -07:00
Tommi Rantala
96c1bca2b0 Fix header inclusion order in `src/elfxx.c'
Make sure that we have included `config.h' before checking HAVE_LZMA.
This makes a difference at least on MIPS, where we include `elfxx.c'
directly. For other platforms this does not make much difference, as we
are already indirectly including `config.h' from other headers.
2012-10-05 21:24:30 -07:00
Arun Sharma
cb3fbbb172 Reduce the number of ifdefs in machine independent code
Hopefully we don't have too many GNUC users who don't have
fetch and add.
2012-09-29 12:22:47 -07:00
Tommi Rantala
6456da2dc1 Assign `func' just once in Ltest-nocalloc glibc case 2012-09-28 14:51:22 +03:00
Tommi Rantala
65f936402d Add arguments to malloc and calloc prototypes in Ltest-nocalloc 2012-09-28 14:51:22 +03:00
Tommi Rantala
249ff2f840 Remove unused variable in Ltest-nocalloc 2012-09-28 14:51:22 +03:00
Tommi Rantala
e9f161a677 Replace empty argument lists with `void' in tests 2012-09-28 14:51:22 +03:00
Tommi Rantala
890e23eb9d Prefer NULL over zero 2012-09-28 14:51:21 +03:00
Tommi Rantala
aebba1f8a7 Apply `define_lock()'
We have a nice macro for defining pthread mutexes, use it.
2012-09-28 14:51:21 +03:00
Tommi Rantala
22aff2cc1f Fix second operand read in dwarf_eval_expr()
Due to bad bracketing, the second operand was never read for dwarf
expressions that take two operands.

Caught with sparse.
2012-09-28 14:51:21 +03:00
Tommi Rantala
65bdcc6f9d Teach autotools current ARM `ex_tables.h' location 2012-09-28 14:51:21 +03:00
Tommi Rantala
2fbbf276b3 Use shared `ARRAY_SIZE' in IA64 tests 2012-09-28 14:51:21 +03:00
Tommi Rantala
6b55e0ab51 Use `UNUSED' in tests 2012-09-28 14:51:21 +03:00
Tommi Rantala
5e7e890a0b Plug in `ALIAS' attribute 2012-09-28 14:51:21 +03:00
Tommi Rantala
7d471b1440 Define and use `CONST_ATTR' 2012-09-28 14:51:21 +03:00
Tommi Rantala
e0653f9e3a Define and use `WEAK' 2012-09-28 14:51:21 +03:00
Tommi Rantala
e3e49dc28a Define and use `NOINLINE' 2012-09-28 14:51:19 +03:00
Tommi Rantala
397f32a378 Plug in `ARRAY_SIZE' in ptrace code 2012-09-28 14:50:03 +03:00
Tommi Rantala
dcbe6836eb IA64: constify read only arrays in `tdep_init()' 2012-09-28 14:50:03 +03:00
Tommi Rantala
088ac53775 Constify `operands' in src/dwarf/Gexpr.c 2012-09-28 14:50:03 +03:00
Tommi Rantala
ee8df26288 Constify `dwarf_to_unw_regnum_map' 2012-09-28 14:50:03 +03:00
Tommi Rantala
a9b5b10f23 Set `_UPT_reg_offset' read only
We do not modify `_UPT_reg_offset', so let's set it `const'. Given that
the array is exported, it's technically possible that some library user
is actually modifying the content, but does not seem really all that
likely.
2012-09-28 14:50:03 +03:00
Tommi Rantala
fca254a9b4 IA64: give prototype for `ia64_find_unwind_table()'
src/ptrace/_UPT_find_proc_info.c: In function 'get_unwind_info':
src/ptrace/_UPT_find_proc_info.c:67: warning: implicit declaration of function 'ia64_find_unwind_table'
2012-09-28 14:50:03 +03:00
Tommi Rantala
e2d5cdd22d ppc32: include `compiler.h' for UNUSED in ucontext_i.h 2012-09-28 14:50:03 +03:00
Tommi Rantala
8d5b1aeeff SuperH port
Add support for the 32bit SuperH architecture running Linux.
Specifically, support is added for SH4, and support for earlier SH
versions and to the 64bit SH5 are left out. This was tested in qemu with
a little-endian SH4 debian image & GCC 4.7 cross compiler.
2012-09-28 14:50:03 +03:00
Tommi Rantala
7d77ef4d82 Enable coredump library build on ARM by default
The ARM coredump library compiles, ship it!
2012-09-28 14:50:03 +03:00
Tommi Rantala
79c2c254a7 MIPS coredump support
Add MIPS support to the coredump library. Explicit support for the MIPS
program counter register is added so that we can start backtracing from
the program counter value we read from a core dump. The PC register
support was not strictly required for local backtracing, and we will in
fact just plug the return address to the PC register in getcontext().

I have only tested the 32bit "OABI" paths.
2012-09-28 14:50:03 +03:00
Tommi Rantala
ded94b98ff Stop including `memory.h'
I am unable to find any reference to `memory.h' in the C99 and C11
committee drafts, so include `string.h' instead when we need memset() or
similar.
2012-09-28 14:50:03 +03:00
Tommi Rantala
58354c94d7 Nuke HAVE_BACKTRACE
We do not really need to care if the system provides `backtrace()',
since we will want to test the one provided in libunwind, not the one
that is provided by the system. The `backtrace()' calls should already
be aliased to `unw_backtrace()', but if that is not working for whatever
reason, we can call `unw_backtrace()' explicitly.
2012-09-28 14:50:03 +03:00
Tommi Rantala
848ad53a47 Call snprintf() from signal handler only if required in test-async-sig
snprintf() is not guaranteed to be safely callable from a signal
handler, so avoid calling it in the default non-verbose case.
2012-09-28 14:50:03 +03:00
Tommi Rantala
7263a97ced Roll test-nocalloc' into Ltest-nocalloc.c'
We are building only a UNW_LOCAL_ONLY build of `test-nocalloc', and the
"generic" build would not be very interesting. Roll the whole test into
`Ltest-nocalloc.c'.
2012-09-28 14:50:03 +03:00
Tommi Rantala
aeb1afc65d Call `unw_backtrace()' explicitly in test-flush-cache.c 2012-09-28 14:50:03 +03:00