in elf_map_image() to ensure mapped files have a valid ELF header.
Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
Signed-off-by: Arun Sharma <asharma@fb.com>
Eliminates obfuscating variables in favor of adding files directly
to library SOURCES. Eliminates the need for EXTRA_DIST variable.
Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
Rather than building the sources directly, create a library that
gets linked statically into libunwind.la and libunwind-$(arch).la.
Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
Build DWARF source files into automake convenience libraries to
eliminate duplication in arch-dependent library build rules.
Adds a configure-time check to determine whether to use them.
Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
Eliminate redundant listing of libunwind_setjmp source files by
using automake's '+=' operator.
Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
Use automake's '+=' to simplify include_HEADERS rules. Move most
EXTRA_DIST files to noinst_HEADERS, eliminating duplication of headers
listed by include_HEADERS. Add MIPS and PPC32 headers that were not
being distributed previously.
Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
Eliminates unused libraries from test program linking. Substitutes
'$(top_builddir)' for '..' to clarify library locations.
Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
The -static-libcxa test only applies for the Intel compiler, but the
check could pass for some versions of GCC. It would be accepted with
a warning in the past, but it produces an error with GCC 4.6.
Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
Ensure that --enable-debug-frame is set automatically when building
libunwind for an ARM target. Other targets continue to have
--disable-debug-frame as the default setting.
Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
Adds numerous AC_MSG_CHECKING and AC_MSG_RESULT pairings for
configuration tests that were previously unreported. Relocates
the debug configuration to the same part of the file as the command
line option declaration for associative clarity. Makes it easier
to confirm the resultant configuration matches original intentions.
Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
Frees newly created address space memory in the event of a failure
caused by an endian mismatch.
Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
Current implementation fails to find separate debug symbols when
.gnu_debuglink is set to the same name of the target ELF basename
(e.g. "libc.so.6" for /lib/libc.so.6). This patch fixes this by ignoring
separate debug files that contain a .gnu_debuglink section.
It also fixes a small typo in a related Debug() line.
Signed-off-by: Andris Zeila <andris.zeila@accenture.com>
the instruction after the call for a normal frame. libunwind uses
IP-1 to lookup unwind information. However, this is not necessary for
interrupted frames such as signal frames (or interrupt frames) in
the kernel context.
This patch handles both cases correctly.
Based on work by Mark Wielaard <mwielaard@redhat.com>
