[RESEND,PATCH,V3 0/7] Add SCFI support for aarch64

[Indu Bhagat]

Hi,

[I am sending V3 again as a series because it was brought to my attention
that a subset of previously sent V3 series may have been trapped by spam
filtering in some cases.  The messages had all made it fine to the list
archives, however.]

This patch series extends GAS support for SCFI to aarch64.

For more details on background, motivation and short notes on design,
please see the link to V1 posting:
https://sourceware.org/pipermail/binutils/2024-April/133557.html

The V3 version corrects the "[PATCH 1/7] opcodes: aarch64: flags to
denote subclasses of ldst insns" by using F_LDST_SWAP for lse_atomic
ld/st ops.  The rest of the patches are the same as V2.
Link to V2 posting: https://sourceware.org/pipermail/binutils/2024-June/134461.html

The V2 version addressed the review comments on V1:
  - Carve out the ginsn creation functionality for aarch64 in a separate file.
  - Add additional flags in aarch64 insn definition to indicate
    subclasses.

Although self-explanatory, here is the outline of the patches:
  - Patch 1 fixes a bug I ran into while testing the series.  PS: This patch
    needs a global maintainer review and approval.
  - Patch 2-5 are new in V2. These patches add new flags for indicating
    subclasses of instructions.
  - Patch 6 and 7 implement the aarch64 ginsn creation and SCFI
    testsuite respectively.

Thanks,
Indu Bhagat (7):
  gas: scfi: make scfi_state_restore_reg function more precise
  opcodes: aarch64: flags to denote subclasses of ldst insns
  opcodes: aarch64: allow FLAGS in CPA_INSN, CPA_SVE_INSNC
  opcodes: aarch64: flags to denote subclasses of arithmetic insns
  opcodes: aarch64: flags to denote subclasses of uncond branches
  gas: aarch64: add experimental support for SCFI
  gas: aarch64: testsuite: add new tests for SCFI

 gas/config/tc-aarch64-ginsn.c                 |  744 ++++++
 gas/config/tc-aarch64.c                       |   15 +
 gas/config/tc-aarch64.h                       |   20 +
 gas/scfi.c                                    |    9 +-
 gas/testsuite/gas/scfi/README                 |    2 +-
 .../gas/scfi/aarch64/ginsn-arith-1.l          |   35 +
 .../gas/scfi/aarch64/ginsn-arith-1.s          |   16 +
 gas/testsuite/gas/scfi/aarch64/ginsn-cofi-1.l |   30 +
 gas/testsuite/gas/scfi/aarch64/ginsn-cofi-1.s |   16 +
 gas/testsuite/gas/scfi/aarch64/ginsn-ldst-1.l |   46 +
 gas/testsuite/gas/scfi/aarch64/ginsn-ldst-1.s |   26 +
 gas/testsuite/gas/scfi/aarch64/ginsn-misc-1.l |   24 +
 gas/testsuite/gas/scfi/aarch64/ginsn-misc-1.s |   11 +
 .../gas/scfi/aarch64/scfi-aarch64.exp         |   64 +
 gas/testsuite/gas/scfi/aarch64/scfi-cb-1.d    |   20 +
 gas/testsuite/gas/scfi/aarch64/scfi-cb-1.l    |    2 +
 gas/testsuite/gas/scfi/aarch64/scfi-cb-1.s    |   14 +
 gas/testsuite/gas/scfi/aarch64/scfi-cfg-1.d   |   31 +
 gas/testsuite/gas/scfi/aarch64/scfi-cfg-1.l   |    2 +
 gas/testsuite/gas/scfi/aarch64/scfi-cfg-1.s   |   46 +
 gas/testsuite/gas/scfi/aarch64/scfi-cfg-2.d   |   40 +
 gas/testsuite/gas/scfi/aarch64/scfi-cfg-2.l   |    2 +
 gas/testsuite/gas/scfi/aarch64/scfi-cfg-2.s   |   42 +
 gas/testsuite/gas/scfi/aarch64/scfi-cfg-3.d   |   32 +
 gas/testsuite/gas/scfi/aarch64/scfi-cfg-3.l   |    2 +
 gas/testsuite/gas/scfi/aarch64/scfi-cfg-3.s   |   34 +
 gas/testsuite/gas/scfi/aarch64/scfi-cfg-4.d   |   41 +
 gas/testsuite/gas/scfi/aarch64/scfi-cfg-4.l   |    2 +
 gas/testsuite/gas/scfi/aarch64/scfi-cfg-4.s   |   41 +
 .../gas/scfi/aarch64/scfi-cond-br-1.d         |   20 +
 .../gas/scfi/aarch64/scfi-cond-br-1.l         |    2 +
 .../gas/scfi/aarch64/scfi-cond-br-1.s         |   13 +
 gas/testsuite/gas/scfi/aarch64/scfi-diag-1.l  |    2 +
 gas/testsuite/gas/scfi/aarch64/scfi-diag-1.s  |    6 +
 gas/testsuite/gas/scfi/aarch64/scfi-diag-2.l  |    3 +
 gas/testsuite/gas/scfi/aarch64/scfi-diag-2.s  |   25 +
 gas/testsuite/gas/scfi/aarch64/scfi-ldrp-1.d  |   59 +
 gas/testsuite/gas/scfi/aarch64/scfi-ldrp-1.l  |    2 +
 gas/testsuite/gas/scfi/aarch64/scfi-ldrp-1.s  |   52 +
 gas/testsuite/gas/scfi/aarch64/scfi-ldrp-2.d  |   33 +
 gas/testsuite/gas/scfi/aarch64/scfi-ldrp-2.l  |    2 +
 gas/testsuite/gas/scfi/aarch64/scfi-ldrp-2.s  |   26 +
 gas/testsuite/gas/scfi/aarch64/scfi-strp-1.d  |   39 +
 gas/testsuite/gas/scfi/aarch64/scfi-strp-1.l  |    2 +
 gas/testsuite/gas/scfi/aarch64/scfi-strp-1.s  |   37 +
 gas/testsuite/gas/scfi/aarch64/scfi-strp-2.d  |   35 +
 gas/testsuite/gas/scfi/aarch64/scfi-strp-2.l  |    2 +
 gas/testsuite/gas/scfi/aarch64/scfi-strp-2.s  |   30 +
 .../gas/scfi/aarch64/scfi-unsupported-1.l     |    4 +
 .../gas/scfi/aarch64/scfi-unsupported-1.s     |   31 +
 include/opcode/aarch64.h                      |   16 +-
 opcodes/aarch64-tbl.h                         | 2190 ++++++++---------
 52 files changed, 2939 insertions(+), 1101 deletions(-)
 create mode 100644 gas/config/tc-aarch64-ginsn.c
 create mode 100644 gas/testsuite/gas/scfi/aarch64/ginsn-arith-1.l
 create mode 100644 gas/testsuite/gas/scfi/aarch64/ginsn-arith-1.s
 create mode 100644 gas/testsuite/gas/scfi/aarch64/ginsn-cofi-1.l
 create mode 100644 gas/testsuite/gas/scfi/aarch64/ginsn-cofi-1.s
 create mode 100644 gas/testsuite/gas/scfi/aarch64/ginsn-ldst-1.l
 create mode 100644 gas/testsuite/gas/scfi/aarch64/ginsn-ldst-1.s
 create mode 100644 gas/testsuite/gas/scfi/aarch64/ginsn-misc-1.l
 create mode 100644 gas/testsuite/gas/scfi/aarch64/ginsn-misc-1.s
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-aarch64.exp
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-cb-1.d
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-cb-1.l
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-cb-1.s
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-cfg-1.d
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-cfg-1.l
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-cfg-1.s
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-cfg-2.d
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-cfg-2.l
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-cfg-2.s
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-cfg-3.d
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-cfg-3.l
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-cfg-3.s
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-cfg-4.d
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-cfg-4.l
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-cfg-4.s
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-cond-br-1.d
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-cond-br-1.l
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-cond-br-1.s
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-diag-1.l
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-diag-1.s
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-diag-2.l
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-diag-2.s
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-ldrp-1.d
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-ldrp-1.l
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-ldrp-1.s
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-ldrp-2.d
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-ldrp-2.l
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-ldrp-2.s
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-strp-1.d
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-strp-1.l
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-strp-1.s
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-strp-2.d
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-strp-2.l
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-strp-2.s
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-unsupported-1.l
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-unsupported-1.s

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2.43.0