This fixes the Raspberry Pi optimized memcmp library (with both user-mode
and system-mode emulation).
Compared to the previous submission, the main changes are:
- I track access endianness by taking into account both SCTLR.B and CPSR.E,
to make the code easier to understand (though a little bit more
convoluted)
- because of this, I prevent execution of BE32 executables with ARMv7 or v8
CPUs. These CPUs do not have SCTLR.B.
- because of this, I also included an untested patch to implement BE32
mode in system emulation (BE8 should already work with the previous
versions of the series).
Note that I also tested the rest only with BE32, since BE8 is not included
in linux-user-test-0.3 (it may be possible to convert BE32 to BE8 using
ld -r? I haven't tried yet and I'm going to travel for the rest of the
weekend).
It is a bit late for 2.1, so I wouldn't complain if this is pushed out
to the next version.
Thanks,
Paolo
Paolo Bonzini (11):
linux-user: arm: fix coding style for some linux-user signal functions
linux-user: arm: pass env to get_user_code_*
target-arm: implement SCTLR.B, drop bswap_code
linux-user: arm: set CPSR.E correctly for BE8 mode
linux-user: arm: handle CPSR.E correctly in strex emulation
target-arm: implement SCTLR.EE
target-arm: pass DisasContext to gen_aa32_ld*/st*
target-arm: introduce tbflag for CPSR.E
target-arm: implement setend
target-arm: reorganize gen_aa32_ld/st to prepare for BE32 system emulation
target-arm: implement BE32 mode in system emulation
linux-user/arm/target_cpu.h | 2 +
linux-user/main.c | 81 ++++++--
linux-user/signal.c | 114 ++++++------
target-arm/arm_ldst.h | 8 +-
target-arm/cpu.h | 85 ++++++++-
target-arm/helper.c | 46 ++++-
target-arm/helper.h | 1 +
target-arm/op_helper.c | 5 +
target-arm/translate-a64.c | 6 +-
target-arm/translate.c | 444 +++++++++++++++++++++++++++-----------------
target-arm/translate.h | 4 +-
11 files changed, 525 insertions(+), 271 deletions(-)