Based-on: 20211006172307.780893-1-richard.hender...@linaro.org
("[PATCH v4 00/41] linux-user: Streamline handling of SIGSEGV")
This began with Peter wanting a cpu_ldst.h interface that can handle
alignment info for Arm M-profile system mode, which will also compile
for user-only without ifdefs.
Once I had that interface, I thought I might as well enforce the
requested alignment in user-only. There are plenty of cases where
we ought to have been doing that for quite a while. This took rather
more work than I imagined to start.
Changes for v4:
* Rebase, with some patches now upstream.
* Rename the core function to cpu_loop_exit_sigbus.
Changes for v3:
* Updated tcg/{aarch64,ppc,s390,riscv,tci}.
Changes for v2:
* Cleanup prctl(2), add support for prctl(PR_GET/SET_UNALIGN).
* Adjustments for ppc and sparc reporting address during alignment fault.
r~
Richard Henderson (48):
hw/core: Add TCGCPUOps.record_sigbus
linux-user: Add cpu_loop_exit_sigbus
linux-user/alpha: Remove EXCP_UNALIGN handling
target/arm: Implement arm_cpu_record_sigbus
linux-user/hppa: Remove EXCP_UNALIGN handling
target/microblaze: Do not set MO_ALIGN for user-only
target/ppc: Move SPR_DSISR setting to powerpc_excp
target/ppc: Set fault address in ppc_cpu_do_unaligned_access
target/ppc: Restrict ppc_cpu_do_unaligned_access to sysemu
target/s390x: Implement s390x_cpu_record_sigbus
linux-user/hppa: Remove POWERPC_EXCP_ALIGN handling
target/sh4: Set fault address in superh_cpu_do_unaligned_access
target/sparc: Remove DEBUG_UNALIGNED
target/sparc: Split out build_sfsr
target/sparc: Set fault address in sparc_cpu_do_unaligned_access
accel/tcg: Report unaligned atomics for user-only
target/arm: Use MO_128 for 16 byte atomics
target/i386: Use MO_128 for 16 byte atomics
target/ppc: Use MO_128 for 16 byte atomics
target/s390x: Use MO_128 for 16 byte atomics
target/hexagon: Implement cpu_mmu_index
accel/tcg: Add cpu_{ld,st}*_mmu interfaces
accel/tcg: Move cpu_atomic decls to exec/cpu_ldst.h
target/mips: Use cpu_*_data_ra for msa load/store
target/mips: Use 8-byte memory ops for msa load/store
target/s390x: Use cpu_*_mmu instead of helper_*_mmu
target/sparc: Use cpu_*_mmu instead of helper_*_mmu
target/arm: Use cpu_*_mmu instead of helper_*_mmu
tcg: Move helper_*_mmu decls to tcg/tcg-ldst.h
tcg: Add helper_unaligned_{ld,st} for user-only sigbus
linux-user: Split out do_prctl and subroutines
linux-user: Disable more prctl subcodes
Revert "cpu: Move cpu_common_props to hw/core/cpu.c"
linux-user: Add code for PR_GET/SET_UNALIGN
target/alpha: Reorg fp memory operations
target/alpha: Reorg integer memory operations
target/alpha: Implement prctl_unalign_sigbus
target/hppa: Implement prctl_unalign_sigbus
target/sh4: Implement prctl_unalign_sigbus
linux-user/signal: Handle BUS_ADRALN in host_signal_handler
tcg: Canonicalize alignment flags in MemOp
tcg/i386: Support raising sigbus for user-only
tcg/aarch64: Support raising sigbus for user-only
tcg/ppc: Support raising sigbus for user-only
tcg/s390: Support raising sigbus for user-only
tcg/tci: Support raising sigbus for user-only
tcg/riscv: Support raising sigbus for user-only
tests/tcg/multiarch: Add sigbus.c
docs/devel/loads-stores.rst | 52 ++-
include/exec/cpu_ldst.h | 332 ++++++++-------
include/exec/exec-all.h | 14 +
include/hw/core/cpu.h | 4 +
include/hw/core/tcg-cpu-ops.h | 23 +
include/tcg/tcg-ldst.h | 79 ++++
include/tcg/tcg.h | 158 -------
linux-user/aarch64/target_prctl.h | 160 +++++++
linux-user/aarch64/target_syscall.h | 23 -
linux-user/alpha/target_prctl.h | 1 +
linux-user/arm/target_prctl.h | 1 +
linux-user/cris/target_prctl.h | 1 +
linux-user/generic/target_prctl_unalign.h | 27 ++
linux-user/hexagon/target_prctl.h | 1 +
linux-user/hppa/target_prctl.h | 1 +
linux-user/i386/target_prctl.h | 1 +
linux-user/m68k/target_prctl.h | 1 +
linux-user/microblaze/target_prctl.h | 1 +
linux-user/mips/target_prctl.h | 88 ++++
linux-user/mips/target_syscall.h | 6 -
linux-user/mips64/target_prctl.h | 1 +
linux-user/mips64/target_syscall.h | 6 -
linux-user/nios2/target_prctl.h | 1 +
linux-user/openrisc/target_prctl.h | 1 +
linux-user/ppc/target_prctl.h | 1 +
linux-user/riscv/target_prctl.h | 1 +
linux-user/s390x/target_prctl.h | 1 +
linux-user/sh4/target_prctl.h | 1 +
linux-user/sparc/target_prctl.h | 1 +
linux-user/x86_64/target_prctl.h | 1 +
linux-user/xtensa/target_prctl.h | 1 +
target/alpha/cpu.h | 5 +
target/arm/internals.h | 2 +
target/hexagon/cpu.h | 9 +
target/hppa/cpu.h | 5 +-
target/ppc/internal.h | 8 +-
target/s390x/s390x-internal.h | 8 +-
target/sh4/cpu.h | 4 +
tcg/aarch64/tcg-target.h | 2 -
tcg/i386/tcg-target.h | 2 -
tcg/ppc/tcg-target.h | 2 -
tcg/riscv/tcg-target.h | 2 -
tcg/s390x/tcg-target.h | 2 -
accel/tcg/cputlb.c | 393 ++++++-----------
accel/tcg/user-exec.c | 414 ++++++++----------
cpu.c | 31 ++
hw/core/cpu-common.c | 17 +-
linux-user/aarch64/cpu_loop.c | 12 +-
linux-user/alpha/cpu_loop.c | 15 -
linux-user/arm/cpu_loop.c | 30 +-
linux-user/hppa/cpu_loop.c | 7 -
linux-user/ppc/cpu_loop.c | 8 -
linux-user/signal.c | 17 +
linux-user/syscall.c | 490 +++++++++-------------
target/alpha/translate.c | 188 +++++----
target/arm/cpu.c | 1 +
target/arm/cpu_tcg.c | 1 +
target/arm/helper-a64.c | 61 +--
target/arm/m_helper.c | 6 +-
target/arm/tlb_helper.c | 6 +
target/hppa/translate.c | 19 +-
target/i386/tcg/mem_helper.c | 2 +-
target/m68k/op_helper.c | 1 -
target/microblaze/translate.c | 16 +
target/mips/tcg/msa_helper.c | 389 ++++-------------
target/ppc/excp_helper.c | 41 +-
target/ppc/mem_helper.c | 1 -
target/ppc/translate.c | 12 +-
target/s390x/cpu.c | 1 +
target/s390x/tcg/excp_helper.c | 27 +-
target/s390x/tcg/mem_helper.c | 13 +-
target/sh4/op_helper.c | 5 +
target/sh4/translate.c | 50 ++-
target/sparc/ldst_helper.c | 36 +-
target/sparc/mmu_helper.c | 92 ++--
tcg/tcg-op.c | 7 +-
tcg/tcg.c | 1 +
tcg/tci.c | 21 +-
tests/tcg/multiarch/sigbus.c | 68 +++
accel/tcg/ldst_common.c.inc | 307 ++++++++++++++
tcg/aarch64/tcg-target.c.inc | 91 +++-
tcg/i386/tcg-target.c.inc | 103 ++++-
tcg/ppc/tcg-target.c.inc | 98 ++++-
tcg/riscv/tcg-target.c.inc | 63 ++-
tcg/s390x/tcg-target.c.inc | 59 ++-
85 files changed, 2457 insertions(+), 1804 deletions(-)
create mode 100644 include/tcg/tcg-ldst.h
create mode 100644 linux-user/aarch64/target_prctl.h
create mode 100644 linux-user/alpha/target_prctl.h
create mode 100644 linux-user/arm/target_prctl.h
create mode 100644 linux-user/cris/target_prctl.h
create mode 100644 linux-user/generic/target_prctl_unalign.h
create mode 100644 linux-user/hexagon/target_prctl.h
create mode 100644 linux-user/hppa/target_prctl.h
create mode 100644 linux-user/i386/target_prctl.h
create mode 100644 linux-user/m68k/target_prctl.h
create mode 100644 linux-user/microblaze/target_prctl.h
create mode 100644 linux-user/mips/target_prctl.h
create mode 100644 linux-user/mips64/target_prctl.h
create mode 100644 linux-user/nios2/target_prctl.h
create mode 100644 linux-user/openrisc/target_prctl.h
create mode 100644 linux-user/ppc/target_prctl.h
create mode 100644 linux-user/riscv/target_prctl.h
create mode 100644 linux-user/s390x/target_prctl.h
create mode 100644 linux-user/sh4/target_prctl.h
create mode 100644 linux-user/sparc/target_prctl.h
create mode 100644 linux-user/x86_64/target_prctl.h
create mode 100644 linux-user/xtensa/target_prctl.h
create mode 100644 tests/tcg/multiarch/sigbus.c
create mode 100644 accel/tcg/ldst_common.c.inc
--
2.25.1
