which it isn't now since the internal machdep->pagesize is unsigned.
Without this patch, module loading fails during initialization on a
kernel that has a page size of 16KB, with messages that indicate
"please wait... (gathering module symbol data)" followed by
"crash: invalid size request: 0 type: pgd page".
(rabinv@axis.com)
running against a 32-bit MIPS ELF kdump or compressed kdump if a
per-cpu NT_PRSTATUS note cannot be be gathered from the dumpfile
header. Without the the patch, a segmentation violation occurs after
the message "WARNING: cannot find NT_PRSTATUS note for cpu: <number>"
is displayed.
(rabinv@axis.com)
dumpfiles:
(1) If ELF notes are not available, read them from the kernel's
crash_notes.
(2) If an online CPUs did not save its ELF notes, then adjust
the mapping of each ELF note to its CPU accordingly.
(rabinv@axis.com)
positions.", commit be0c37c985eddc46d0d67543898c086f60460e2e, the
MIPS PTE bits are at fixed locations. Since they are macros in the
kernel, this patch adds an explicit kernel version check in order to
determine and set their values.
(rabinv@axis.com)
(1) The MIPS general purpose registers in the elf_gregset_t
don't start at index 0 but at index 6.
(2) Adjust for the kernel's pt_regs structure changes between
kernel versions. For example, fields are inserted into the
middle based on build time options, and the amount of padding
at the head of the structure was changed relatively recently.
To handle this, split the structure definition into two parts
and get the offsets of these two parts dynamically.
(3) Do not display each parsed kernel symbol during initialization
when invoked with "crash -d8".
(4) Add support for loading raw MIPS ramdump dumpfiles.
(5) Add support for compressed kdump dumpfiles.
(rabinv@axis.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)
