The memcpy should be for 31 GPRs, [x0, x30]. Currently it (accidentally)
also copies over the SP register (which ends up being harmless, as the
layouts match, and the value is reassigned again anyway).
Separately, I'm including an optional change for the iteration order,
since LR is the x30 GPR, it makes slightly more sense to print it
immediately after x29. However, this is a change in behaviour, so I can
undo the change if you think it's not worth it.
Tested: atest libunwindstack_unit_test
Change-Id: Ib6b81f8ee3a9a526bfabe4b09b327f083c855fb8
A thread's PSTATE can sometimes be critical for understanding a crash,
especially with MTE and other new features that store per-thread state
in PSTATE.
Bug: 135772972
Change-Id: I1bee25bffe7eea395f04b6449dc9227298cf866e
This patch requires v3.18 kernel or above, because v3.10 kernel
has a bug (as of 8/1/2017) in the ptrace(GETREGSET) function for mips
and mips64.
Change-Id: I004c1fa190193eebe1c84440b366289122a6bd8a
Signed-off-by: Douglas Leung <douglas.leung@mips.com>
Signed-off-by: Dejan Jovicevic <dejan.jovicevic@mips.com>
Add an ArchEnum to express the arch of the Elf objects and Reg objects.
Split out the regs code into per arch pieces and generic parts.
Also, split out the header files for each arch.
Do not break out the test code yet, there isn't enough and it doesn't
help to maintain the tests.
Test: libunwindstack/libbacktrace/debuggerd unit tests pass.
Test: Running debuggerd -b <PIDS> yields valid data on bullhead.
Change-Id: If61f6c730c9ff2249f986b41de8c4d62f7158325
Add a function to iterate over Regs with a human-friendly name and the
value of the register, to make it easy to string-format registers.
Test: mma
Change-Id: I8f33830fa79b245b5030b7bc9bc3c1c7ced80c75
Ryan Savitski