[v12,00/26] Add LoongArch linux-user emulation support

Based-on: https://patchew.org/QEMU/1637893388-10282-1-git-send-email-gaosong@loongson.cn/

Hi all,

This series only support linux-user emulation.
More about LoongArch at: https://github.com/loongson/

The latest kernel:
  * https://github.com/loongson/linux/tree/loongarch-next

Patches need review:
  * 0016-target-loongarch-Add-disassembler.patch
  * 0018-linux-user-Add-LoongArch-specific-structures.patch
  * 0019-linux-user-Add-LoongArch-signal-support.patch

Changes for v12:
  * Clean up code.

Changes for v11:
  * Clean up insns.decode.

Changes for v10:
  * Delete format_insn(), use output_XXX.

Changes for v9:
  * Use GPL-2.0+ SPDX license identifier.
  * Move set_loongarch_cpucfg() in loongarch_3a5000_initfn().
  * target/loongarch/insn_trans/trans_xxx.c rename to
    target/loongarch/insn_trans/trans_xxx.c.inc.
  * Split host_signal_pc and host_signal_write out of user-exec.c.

Changes for v8:
  * Use the FIELD functions to define cpucfg[i].
  * Re-use the decodetree to disassembler description.
  * Split v7 patch(0017-LoongArch-Linux-User-Emulation.patch).

Changes for v7:
  * scripts/gensyscalls.sh support loongarch64
    if we use gensyscalls.sh, we need disable __BITS_PER_LONG at arch/loongarch/include/uapi/asm/bitsperlong.h

V11:
https://patchew.org/QEMU/1637302410-24632-1-git-send-email-gaosong@loongson.cn/

Please review!

Thanks.


Song Gao (26):
  target/loongarch: Add README
  target/loongarch: Add core definition
  target/loongarch: Add main translation routines
  target/loongarch: Add fixed point arithmetic instruction translation
  target/loongarch: Add fixed point shift instruction translation
  target/loongarch: Add fixed point bit instruction translation
  target/loongarch: Add fixed point load/store instruction translation
  target/loongarch: Add fixed point atomic instruction translation
  target/loongarch: Add fixed point extra instruction translation
  target/loongarch: Add floating point arithmetic instruction
    translation
  target/loongarch: Add floating point comparison instruction
    translation
  target/loongarch: Add floating point conversion instruction
    translation
  target/loongarch: Add floating point move instruction translation
  target/loongarch: Add floating point load/store instruction
    translation
  target/loongarch: Add branch instruction translation
  target/loongarch: Add disassembler
  linux-user: Add LoongArch generic header files
  linux-user: Add LoongArch specific structures
  linux-user: Add LoongArch signal support
  linux-user: Add LoongArch elf support
  linux-user: Add LoongArch syscall support
  linux-user: Add LoongArch cpu_loop support
  default-configs: Add loongarch linux-user support
  target/loongarch: Add target build suport
  target/loongarch: 'make check-tcg' support
  scripts: add loongarch64 binfmt config

 MAINTAINERS                                     |   5 +
 configs/targets/loongarch64-linux-user.mak      |   3 +
 configure                                       |   5 +
 include/disas/dis-asm.h                         |   2 +
 include/elf.h                                   |   2 +
 linux-user/elfload.c                            |  58 ++
 linux-user/loongarch64/cpu_loop.c               |  94 +++
 linux-user/loongarch64/signal.c                 | 198 ++++++
 linux-user/loongarch64/sockbits.h               |  11 +
 linux-user/loongarch64/syscall_nr.h             | 313 +++++++++
 linux-user/loongarch64/target_cpu.h             |  34 +
 linux-user/loongarch64/target_elf.h             |  12 +
 linux-user/loongarch64/target_errno_defs.h      |  12 +
 linux-user/loongarch64/target_fcntl.h           |  11 +
 linux-user/loongarch64/target_signal.h          |  13 +
 linux-user/loongarch64/target_structs.h         |  47 ++
 linux-user/loongarch64/target_syscall.h         |  44 ++
 linux-user/loongarch64/termbits.h               |  11 +
 linux-user/syscall_defs.h                       |  10 +-
 meson.build                                     |   3 +-
 scripts/gensyscalls.sh                          |   1 +
 scripts/qemu-binfmt-conf.sh                     |   6 +-
 target/loongarch/README                         |  76 +++
 target/loongarch/cpu-param.h                    |  18 +
 target/loongarch/cpu.c                          | 314 +++++++++
 target/loongarch/cpu.h                          | 252 +++++++
 target/loongarch/disas.c                        | 612 +++++++++++++++++
 target/loongarch/fpu_helper.c                   | 862 ++++++++++++++++++++++++
 target/loongarch/helper.h                       |  94 +++
 target/loongarch/insn_trans/trans_arith.c.inc   | 304 +++++++++
 target/loongarch/insn_trans/trans_atomic.c.inc  | 136 ++++
 target/loongarch/insn_trans/trans_bit.c.inc     | 211 ++++++
 target/loongarch/insn_trans/trans_branch.c.inc  |  83 +++
 target/loongarch/insn_trans/trans_extra.c.inc   |  86 +++
 target/loongarch/insn_trans/trans_farith.c.inc  | 105 +++
 target/loongarch/insn_trans/trans_fcmp.c.inc    |  56 ++
 target/loongarch/insn_trans/trans_fcnv.c.inc    |  33 +
 target/loongarch/insn_trans/trans_fmemory.c.inc | 153 +++++
 target/loongarch/insn_trans/trans_fmov.c.inc    | 157 +++++
 target/loongarch/insn_trans/trans_memory.c.inc  | 229 +++++++
 target/loongarch/insn_trans/trans_shift.c.inc   | 106 +++
 target/loongarch/insns.decode                   | 442 ++++++++++++
 target/loongarch/internals.h                    |  28 +
 target/loongarch/meson.build                    |  19 +
 target/loongarch/op_helper.c                    |  86 +++
 target/loongarch/translate.c                    | 268 ++++++++
 target/loongarch/translate.h                    |  45 ++
 target/meson.build                              |   1 +
 tests/tcg/configure.sh                          |   1 +
 49 files changed, 5666 insertions(+), 6 deletions(-)
 create mode 100644 configs/targets/loongarch64-linux-user.mak
 create mode 100644 linux-user/loongarch64/cpu_loop.c
 create mode 100644 linux-user/loongarch64/signal.c
 create mode 100644 linux-user/loongarch64/sockbits.h
 create mode 100644 linux-user/loongarch64/syscall_nr.h
 create mode 100644 linux-user/loongarch64/target_cpu.h
 create mode 100644 linux-user/loongarch64/target_elf.h
 create mode 100644 linux-user/loongarch64/target_errno_defs.h
 create mode 100644 linux-user/loongarch64/target_fcntl.h
 create mode 100644 linux-user/loongarch64/target_signal.h
 create mode 100644 linux-user/loongarch64/target_structs.h
 create mode 100644 linux-user/loongarch64/target_syscall.h
 create mode 100644 linux-user/loongarch64/termbits.h
 create mode 100644 target/loongarch/README
 create mode 100644 target/loongarch/cpu-param.h
 create mode 100644 target/loongarch/cpu.c
 create mode 100644 target/loongarch/cpu.h
 create mode 100644 target/loongarch/disas.c
 create mode 100644 target/loongarch/fpu_helper.c
 create mode 100644 target/loongarch/helper.h
 create mode 100644 target/loongarch/insn_trans/trans_arith.c.inc
 create mode 100644 target/loongarch/insn_trans/trans_atomic.c.inc
 create mode 100644 target/loongarch/insn_trans/trans_bit.c.inc
 create mode 100644 target/loongarch/insn_trans/trans_branch.c.inc
 create mode 100644 target/loongarch/insn_trans/trans_extra.c.inc
 create mode 100644 target/loongarch/insn_trans/trans_farith.c.inc
 create mode 100644 target/loongarch/insn_trans/trans_fcmp.c.inc
 create mode 100644 target/loongarch/insn_trans/trans_fcnv.c.inc
 create mode 100644 target/loongarch/insn_trans/trans_fmemory.c.inc
 create mode 100644 target/loongarch/insn_trans/trans_fmov.c.inc
 create mode 100644 target/loongarch/insn_trans/trans_memory.c.inc
 create mode 100644 target/loongarch/insn_trans/trans_shift.c.inc
 create mode 100644 target/loongarch/insns.decode
 create mode 100644 target/loongarch/internals.h
 create mode 100644 target/loongarch/meson.build
 create mode 100644 target/loongarch/op_helper.c
 create mode 100644 target/loongarch/translate.c
 create mode 100644 target/loongarch/translate.h