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selftests/powerpc/ptrace: Add peek/poke of FPRs
authorMichael Ellerman <mpe@ellerman.id.au>
Mon, 27 Jun 2022 14:02:39 +0000 (00:02 +1000)
committerMichael Ellerman <mpe@ellerman.id.au>
Mon, 25 Jul 2022 02:05:16 +0000 (12:05 +1000)
commit5e6b2ef08ad40ff0c84b2a96988b39fb6638057b
treee311845cb16be9907549aa0e42704e47331792f2tree | snapshot
parentbeb3492510a1534058d1156bb4e83ba589a531b0commit | diff
selftests/powerpc/ptrace: Add peek/poke of FPRs

Currently the ptrace-gpr test only tests the GET/SET(FP)REGS ptrace
APIs. But there's an alternate (older) API, called PEEK/POKEUSR.

Add some minimal testing of PEEK/POKEUSR of the FPRs. This is sufficient
to detect the bug that was fixed recently in the 32-bit ptrace FPR
handling.

Depends-on: 20a065f8608d ("powerpc/32: Fix overread/overwrite of thread_struct via ptrace")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220627140239.2464900-13-mpe@ellerman.id.au
tools/testing/selftests/powerpc/ptrace/ptrace-gpr.c diff | blob | history
tools/testing/selftests/powerpc/ptrace/ptrace.h diff | blob | history
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