[PATCH 0/6] gas: scfi: aarch64: support split sp update pattern

[Indu Bhagat]

Hi,

This series adds support for the following code pattern in SCFI:

   mov reg, imm
   add sp, sp, reg

This task was tracked by the testcase scfi-unsupported-1.s.

More details about the changes and design in the respective commit logs.

Thanks,
Indu Bhagat (6):
  gas: ginsn: allow target-specific initialization
  gas: ginsn: add new ginsn_cofi_p function
  gas: aarch64: ginsn: add safeguards for reg-based stack pointer update
  gas: scfi: allow scratch reg state to track values as well
  gas: scfi: allow additional workflow for split sp update code pattern
  gas: aarch64: testsuite: add testcases for split sp update code
    pattern

 gas/config/tc-aarch64-ginsn.c                 | 113 +++++++-
 gas/config/tc-aarch64.h                       |   3 +
 gas/ginsn.c                                   |  20 ++
 gas/ginsn.h                                   |   2 +
 gas/scfi.c                                    | 247 ++++++++++++++++--
 .../gas/scfi/aarch64/scfi-aarch64.exp         |   4 +-
 gas/testsuite/gas/scfi/aarch64/scfi-diag-4.l  |   3 +
 gas/testsuite/gas/scfi/aarch64/scfi-diag-4.s  |  15 ++
 gas/testsuite/gas/scfi/aarch64/scfi-diag-5.l  |   3 +
 gas/testsuite/gas/scfi/aarch64/scfi-diag-5.s  |  14 +
 .../gas/scfi/aarch64/scfi-static-stack-1.d    |  33 +++
 .../gas/scfi/aarch64/scfi-static-stack-1.l    |   2 +
 ...-unsupported-1.s => scfi-static-stack-1.s} |  23 +-
 .../gas/scfi/aarch64/scfi-unsupported-1.l     |   4 -
 14 files changed, 439 insertions(+), 47 deletions(-)
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-diag-4.l
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-diag-4.s
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-diag-5.l
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-diag-5.s
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-static-stack-1.d
 create mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-static-stack-1.l
 rename gas/testsuite/gas/scfi/aarch64/{scfi-unsupported-1.s => scfi-static-stack-1.s} (54%)
 delete mode 100644 gas/testsuite/gas/scfi/aarch64/scfi-unsupported-1.l

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2.43.0