On Tue, 28 Jun 2022 00:02:27 +1000, Michael Ellerman wrote:
> The PUSH/POP_BASIC_STACK helpers in basic_asm.h do not ensure that the
> stack pointer is always 16-byte aligned, which is required per the ABI.
>
> Fix the macros to do the alignment if the caller fails to.
>
> Currently only one caller passes a non-aligned size, tm_signal_self(),
> which hasn't been caught in testing, presumably because it's a leaf
> function.
>
> [...]
Applied to powerpc/next.
[01/13] selftests/powerpc: Ensure 16-byte stack pointer alignment
https://git.kernel.org/powerpc/c/fd19a1f72aa7bf687609e0810e644fe5b3846342
[02/13] selftests/powerpc/ptrace: Set LOCAL_HDRS
https://git.kernel.org/powerpc/c/cf4baafd7846b3def67057a09b7603a6b566417a
[03/13] selftests/powerpc/ptrace: Split CFLAGS better
https://git.kernel.org/powerpc/c/3c20a1d07c377d7260ca853e216cc85bbd7857fa
[04/13] selftests/powerpc: Don't save CR by default in asm helpers
https://git.kernel.org/powerpc/c/8f2e02394dc907f5e0140bfab80a9aa11e3449ed
[05/13] selftests/powerpc: Don't save TOC by default in asm helpers
https://git.kernel.org/powerpc/c/cfbc0723d18f5aeab4308c66d7d1992317eed7c9
[06/13] selftests/powerpc: Add 32-bit support to asm helpers
https://git.kernel.org/powerpc/c/bd4d3042e7570fc024b5ff15e895363e4bf5a78f
[07/13] selftests/powerpc/ptrace: Drop unused load_fpr_single_precision()
https://git.kernel.org/powerpc/c/af9f3f31f6cc8e3f637f19189e83d99f3fdd96ad
[08/13] selftests/powerpc/ptrace: Convert to load/store doubles
https://git.kernel.org/powerpc/c/53fa86e7ece54cbb1fae1443bd6b348088d8ce7e
[09/13] selftests/powerpc/ptrace: Build the ptrace-gpr test as 32-bit when
possible
https://git.kernel.org/powerpc/c/149a497d5fda3e996a00437260a4c170e43909c8
[10/13] selftests/powerpc/ptrace: Do more of ptrace-gpr in asm
https://git.kernel.org/powerpc/c/611e385087efc2cc3a7033aedd3f84ad0cf2a703
[11/13] selftests/powerpc/ptrace: Make child errors more obvious
https://git.kernel.org/powerpc/c/7b1513d02edf4a6334618070641f47abbbef0cef
[12/13] selftests/powerpc/ptrace: Use more interesting values
https://git.kernel.org/powerpc/c/c5a814cc992002c36fa5b7db5fbd55efb7430386
[13/13] selftests/powerpc/ptrace: Add peek/poke of FPRs
https://git.kernel.org/powerpc/c/6c9c7d8fbc3a2a0cfed0e7a5b39581847b632f0b
cheers
