force the embedded gdb module to complete its two-stage strategy
used for reading debuginfo symbol tables from module object files,
and then retry the line number extraction. This automatically does
what the "mod -r" or "crash --readnow" options accomplish.
(anderson@redhat.com)
contained within an anonymous structure or union. Without the patch,
it is necessary to parse the output of a discrete gdb "printf"
command to determine the offset of such a structure member.
(Alexandr_Terekhov@epam.com)
option searches for data structures of a specified size or within a
range of specified sizes. The -m option searches for data structures
that contain a member of a given type. If a structure contains
another structure, the members of the embedded structure will also
be subject to the search. The type string may be a substring of the
data type name. The output displays the size and name of the data
structure.
(Alexandr_Terekhov@epam.com, anderson@redhat.com)
are generated by the following files, when building X86_64 in a
Fedora Rawhide environment with gcc-6.0.0:
gdb-7.6/gdb/ada-lang.c
gdb-7.6/gdb/linux-record.c
gdb-7.6/gdb/inflow.c
gdb-7.6/gdb/printcmd.c
gdb-7.6/gdb/c-typeprint.c
Without the patch, warnings in the gdb-7.6/gdb directory are not
treated as errors, and are non-fatal to the build.
(anderson@redhat.com)
is generated by "gdb-7.6/opcodes/mips-dis.c" when building with
"make target=MIPS" on an x86_64 host with gcc-6.0.0. Without the
patch, the warning is treated as an error and the build is aborted.
(anderson@redhat.com)
warnings that are generated by "gdb-7.6/bfd/elf64-ppc.c" and
"gdb-7.6/opcodes/ppc-opc.c" when building with "make target=PPC64"
on an x86_64 host with gcc-6.0.0. Without the patch, the warnings
are treated as errors and the build is aborted.
(anderson@redhat.com)
generated by "gdb-7.6/opcodes/arm-dis.c" when building crash with
"make target=ARM64" on an x86_64 host with gcc-6.0.0. Without the
patch, the warning is treated as an error and the build is aborted.
(anderson@redhat.com)
are generated by the following files, when building X86_64 in a
Fedora Rawhide environment with gcc-6.0.0:
gdb-7.6/bfd/coff-i386.c
gdb-7.6/bfd/coff-x86_64.c
kernel.c
x86_64.c
lkcd_common.c
Without the patch, the warnings in the bfd library files are treated
as errors, and abort the build. The three instances in the top-level
crash source code directory are non-fatal. There are several other
gdb-specific instances that are non-fatal and are not addressed.
(anderson@redhat.com)
extensions that have been added to the Intel instruction set for
hardware platforms that support them. The newly-added instructions
"clflushopt", "clwb", and "pcommit" prepend 0x66 as a prefix byte to
the "clflush", "xsaveopt" and "sfence" instructions respectively.
Without the patch:
"clflushopt" is disassembled as: "data16" followed by "clflush"
"clwb" is disassembled as: "data16" followed by "xsaveopt"
"pcommit" is disassembled as: "data16" followed by "sfence"
The "clflushopt" instruction was introduced in Linux 3.15 in the
clflushopt() function. The "clwb" and "pcommit" instructions were
introduced in Linux 4.1 in the clwb() and pcommit_sfence() functions.
(anderson@redhat.com)
instructions. Without the patch, "dis [-f] <function>" may continue
beyond the end of a function, disassembling the memory that is in
between the target function and the next function.
(anderson@redhat.com)
and later big-endian machines. Without the patch, a task's RSS value
will be erroneously calculated by using twice its file pages instead
of adding its file pages with its anonymous pages.
(anderson@redhat.com)
initial support is restricted to 32-bit MIPS kernels that are
configured as little-endian. With respect to dumpfile types, only
ELF vmcores are recognized. In addition to building crash as a
32-bit MIPS binary, it is also possible to build crash as an x86
binary on an x86 or x86_64 host so that crash analysis of MIPS
dumpfiles can be performed on an x86 or x86_64 host. The x86 binary
can be built by entering "make target=MIPS" for the initial build;
subsequent builds with MIPS support can be accomplished by entering
"make" alone.
(rabin@rab.in)
with gcc-4.9. Without the patch, the crash utility build generates
the following error:
In file included from opncls.c:26:0:
opncls.c: In function 'bfd_fopen':
bfd.h:529:65: error: right-hand operand of comma expression has no effect [-Werror=unused-value]
#define bfd_set_cacheable(abfd,bool) (((abfd)->cacheable = bool), TRUE)
^
opncls.c:263:5: note: in expansion of macro 'bfd_set_cacheable' bfd_set_cacheable (nbfd, TRUE);
cc1: all warnings being treated as errors
(anderson@redhat.com, anatol.pomozov@gmail.com)
