[v3,00/41] linux-user: Streamline handling of SIGSEGV

Changes for v3:
  * Rebased on master, as force_sig_fault is now upstream.
  * Minimized nios2 changes; there's another patch set that cleans
    up nios2, but I don't want to force that as a dependency.
  * Renamed raise_sigsegv to cpu_loop_exit_segv (f4bug).

Patches lacking review:
  04-accel-tcg-Fold-cpu_exit_tb_from_sighandler-into-c.patch
  07-linux-user-host-x86-Populate-host_signal.h.patch
  10-linux-user-host-sparc-Populate-host_signal.h.patch
  11-linux-user-host-arm-Populate-host_signal.h.patch
  12-linux-user-host-aarch64-Populate-host_signal.h.patch
  15-linux-user-host-riscv-Populate-host_signal.h.patch
  16-target-arm-Fixup-comment-re-handle_cpu_signal.patch
  17-linux-user-host-riscv-Improve-host_signal_write.patch
  21-target-alpha-Make-alpha_cpu_tlb_fill-sysemu-only.patch
  22-target-arm-Use-cpu_loop_exit_segv-for-mte-tag-loo.patch
  23-target-arm-Implement-arm_cpu_record_sigsegv.patch
  25-target-hexagon-Remove-hexagon_cpu_tlb_fill.patch
  26-target-hppa-Make-hppa_cpu_tlb_fill-sysemu-only.patch
  28-target-m68k-Make-m68k_cpu_tlb_fill-sysemu-only.patch
  29-target-microblaze-Make-mb_cpu_tlb_fill-sysemu-onl.patch
  30-target-mips-Make-mips_cpu_tlb_fill-sysemu-only.patch
  31-target-nios2-Implement-nios2_cpu_record_sigsegv.patch
  32-linux-user-openrisc-Adjust-signal-for-EXCP_RANGE-.patch
  33-target-openrisc-Make-openrisc_cpu_tlb_fill-sysemu.patch
  35-target-riscv-Make-riscv_cpu_tlb_fill-sysemu-only.patch
  36-target-s390x-Use-probe_access_flags-in-s390_probe.patch
  38-target-sh4-Make-sh4_cpu_tlb_fill-sysemu-only.patch
  39-target-sparc-Make-sparc_cpu_tlb_fill-sysemu-only.patch
  40-target-xtensa-Make-xtensa_cpu_tlb_fill-sysemu-onl.patch


r~


Richard Henderson (41):
  accel/tcg: Split out adjust_signal_pc
  accel/tcg: Move clear_helper_retaddr to cpu loop
  accel/tcg: Split out handle_sigsegv_accerr_write
  accel/tcg: Fold cpu_exit_tb_from_sighandler into caller
  configure: Merge riscv32 and riscv64 host architectures
  linux-user: Reorg handling for SIGSEGV
  linux-user/host/x86: Populate host_signal.h
  linux-user/host/ppc: Populate host_signal.h
  linux-user/host/alpha: Populate host_signal.h
  linux-user/host/sparc: Populate host_signal.h
  linux-user/host/arm: Populate host_signal.h
  linux-user/host/aarch64: Populate host_signal.h
  linux-user/host/s390: Populate host_signal.h
  linux-user/host/mips: Populate host_signal.h
  linux-user/host/riscv: Populate host_signal.h
  target/arm: Fixup comment re handle_cpu_signal
  linux-user/host/riscv: Improve host_signal_write
  linux-user/signal: Drop HOST_SIGNAL_PLACEHOLDER
  hw/core: Add TCGCPUOps.record_sigsegv
  linux-user: Add cpu_loop_exit_segv
  target/alpha: Make alpha_cpu_tlb_fill sysemu only
  target/arm: Use cpu_loop_exit_segv for mte tag lookup
  target/arm: Implement arm_cpu_record_sigsegv
  target/cris: Make cris_cpu_tlb_fill sysemu only
  target/hexagon: Remove hexagon_cpu_tlb_fill
  target/hppa: Make hppa_cpu_tlb_fill sysemu only
  target/i386: Implement x86_cpu_record_sigsegv
  target/m68k: Make m68k_cpu_tlb_fill sysemu only
  target/microblaze: Make mb_cpu_tlb_fill sysemu only
  target/mips: Make mips_cpu_tlb_fill sysemu only
  target/nios2: Implement nios2_cpu_record_sigsegv
  linux-user/openrisc: Adjust signal for EXCP_RANGE, EXCP_FPE
  target/openrisc: Make openrisc_cpu_tlb_fill sysemu only
  target/ppc: Implement ppc_cpu_record_sigsegv
  target/riscv: Make riscv_cpu_tlb_fill sysemu only
  target/s390x: Use probe_access_flags in s390_probe_access
  target/s390x: Implement s390_cpu_record_sigsegv
  target/sh4: Make sh4_cpu_tlb_fill sysemu only
  target/sparc: Make sparc_cpu_tlb_fill sysemu only
  target/xtensa: Make xtensa_cpu_tlb_fill sysemu only
  accel/tcg: Restrict TCGCPUOps::tlb_fill() to sysemu

 configure                                     |   8 +-
 meson.build                                   |   4 +-
 include/exec/exec-all.h                       |  41 +-
 include/hw/core/tcg-cpu-ops.h                 |  48 +-
 linux-user/host/aarch64/host-signal.h         |  73 ++
 linux-user/host/alpha/host-signal.h           |  41 +
 linux-user/host/arm/host-signal.h             |  29 +
 linux-user/host/i386/host-signal.h            |  24 +
 linux-user/host/mips/host-signal.h            |  61 ++
 linux-user/host/ppc/host-signal.h             |  24 +
 linux-user/host/ppc64/host-signal.h           |   1 +
 linux-user/host/riscv/host-signal.h           |  57 ++
 linux-user/host/{riscv64 => riscv}/hostdep.h  |   4 +-
 linux-user/host/riscv32/hostdep.h             |  11 -
 linux-user/host/s390/host-signal.h            |  92 ++
 linux-user/host/s390x/host-signal.h           |   1 +
 linux-user/host/sparc/host-signal.h           |  53 ++
 linux-user/host/sparc64/host-signal.h         |   1 +
 linux-user/host/x32/host-signal.h             |   1 +
 linux-user/host/x86_64/host-signal.h          |  24 +
 target/alpha/cpu.h                            |   7 +-
 target/arm/internals.h                        |   6 +
 target/cris/cpu.h                             |   8 +-
 target/hppa/cpu.h                             |   2 +-
 target/i386/tcg/helper-tcg.h                  |   6 +
 target/microblaze/cpu.h                       |   8 +-
 target/mips/tcg/tcg-internal.h                |   7 +-
 target/nios2/cpu.h                            |   6 +
 target/openrisc/cpu.h                         |   7 +-
 target/ppc/cpu.h                              |   3 -
 target/ppc/internal.h                         |   9 +
 target/s390x/s390x-internal.h                 |  13 +-
 target/sh4/cpu.h                              |   6 +-
 target/xtensa/cpu.h                           |   2 +-
 accel/tcg/cpu-exec.c                          |   3 +-
 accel/tcg/user-exec.c                         | 832 ++----------------
 linux-user/alpha/cpu_loop.c                   |   8 -
 linux-user/cris/cpu_loop.c                    |  10 -
 linux-user/hexagon/cpu_loop.c                 |  24 +-
 linux-user/hppa/cpu_loop.c                    |  16 -
 linux-user/m68k/cpu_loop.c                    |  10 -
 linux-user/microblaze/cpu_loop.c              |  10 -
 linux-user/mips/cpu_loop.c                    |  11 -
 linux-user/openrisc/cpu_loop.c                |  17 +-
 linux-user/riscv/cpu_loop.c                   |   7 -
 linux-user/s390x/cpu_loop.c                   |  13 +-
 linux-user/sh4/cpu_loop.c                     |   8 -
 linux-user/signal.c                           | 116 ++-
 linux-user/sparc/cpu_loop.c                   |  25 -
 linux-user/xtensa/cpu_loop.c                  |   9 -
 target/alpha/cpu.c                            |   2 +-
 target/alpha/helper.c                         |  13 +-
 target/arm/cpu.c                              |   6 +-
 target/arm/cpu_tcg.c                          |   6 +-
 target/arm/mte_helper.c                       |   6 +-
 target/arm/sve_helper.c                       |   2 +-
 target/arm/tlb_helper.c                       |  36 +-
 target/cris/cpu.c                             |   4 +-
 target/cris/helper.c                          |  18 -
 target/hexagon/cpu.c                          |  23 -
 target/hppa/cpu.c                             |   2 +-
 target/hppa/mem_helper.c                      |  15 -
 target/i386/tcg/tcg-cpu.c                     |   3 +-
 target/i386/tcg/user/excp_helper.c            |  23 +-
 target/m68k/cpu.c                             |   2 +-
 target/m68k/helper.c                          |   6 +-
 target/microblaze/cpu.c                       |   2 +-
 target/microblaze/helper.c                    |  13 +-
 target/mips/cpu.c                             |   2 +-
 target/mips/tcg/user/tlb_helper.c             |  59 --
 target/nios2/cpu.c                            |   6 +-
 target/nios2/helper.c                         |   7 +-
 target/openrisc/cpu.c                         |   2 +-
 target/openrisc/mmu.c                         |   8 -
 target/ppc/cpu_init.c                         |   6 +-
 target/ppc/user_only_helper.c                 |  15 +-
 target/riscv/cpu.c                            |   2 +-
 target/riscv/cpu_helper.c                     |  21 +-
 target/s390x/cpu.c                            |   6 +-
 target/s390x/tcg/excp_helper.c                |  18 +-
 target/s390x/tcg/mem_helper.c                 |  18 +-
 target/sh4/cpu.c                              |   2 +-
 target/sh4/helper.c                           |   9 +-
 target/sparc/cpu.c                            |   2 +-
 target/sparc/mmu_helper.c                     |  25 -
 target/xtensa/cpu.c                           |   2 +-
 target/xtensa/helper.c                        |  22 +-
 .../{riscv64 => riscv}/safe-syscall.inc.S     |   0
 target/cris/meson.build                       |   7 +-
 target/hppa/meson.build                       |   6 +-
 target/mips/tcg/meson.build                   |   3 -
 target/mips/tcg/user/meson.build              |   3 -
 target/openrisc/meson.build                   |   2 +-
 target/sparc/meson.build                      |   2 +-
 94 files changed, 920 insertions(+), 1324 deletions(-)
 create mode 100644 linux-user/host/aarch64/host-signal.h
 create mode 100644 linux-user/host/alpha/host-signal.h
 create mode 100644 linux-user/host/arm/host-signal.h
 create mode 100644 linux-user/host/i386/host-signal.h
 create mode 100644 linux-user/host/mips/host-signal.h
 create mode 100644 linux-user/host/ppc/host-signal.h
 create mode 100644 linux-user/host/ppc64/host-signal.h
 create mode 100644 linux-user/host/riscv/host-signal.h
 rename linux-user/host/{riscv64 => riscv}/hostdep.h (94%)
 delete mode 100644 linux-user/host/riscv32/hostdep.h
 create mode 100644 linux-user/host/s390/host-signal.h
 create mode 100644 linux-user/host/s390x/host-signal.h
 create mode 100644 linux-user/host/sparc/host-signal.h
 create mode 100644 linux-user/host/sparc64/host-signal.h
 create mode 100644 linux-user/host/x32/host-signal.h
 create mode 100644 linux-user/host/x86_64/host-signal.h
 delete mode 100644 target/mips/tcg/user/tlb_helper.c
 rename linux-user/host/{riscv64 => riscv}/safe-syscall.inc.S (100%)
 delete mode 100644 target/mips/tcg/user/meson.build

-- 
2.25.1