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[End of changes in V1] Thanks ---------------------- Hello, This patchset adds support for handling the .cfi_b_key_frame assembler directive to the SFrame format: SFrame format representation now allows to encode which of the pauth A key / B key are used (for signing return addresses on aarch64), and gas, readelf/objdump now allow for generation and textual dump of this information. Testing notes: - Regression tested cross build of several targets on an x86_64 host and an aarch64 host using a regression script that checks for failures in gas, ld, binutils, libctf and libsframe. - Regression tested native builds on x86_64 and aarch64. - binutils/gdb try bot showed no new regressions. Thanks, Indu Bhagat (5): [1/5] sframe.h: add support for .cfi_b_key_frame [2/5] gas: sframe: add support for .cfi_b_key_frame [3/5] objdump/readelf: sframe: emit marker for SFrame FDE with B key [4/5] gas: sframe: testsuite: add testcase for .cfi_b_key_frame [5/5] sframe: doc: update documentation for pauth key in SFrame FDE gas/gen-sframe.c | 26 +++++++++++--- gas/gen-sframe.h | 2 +- gas/sframe-opt.c | 3 ++ .../cfi-sframe-aarch64-pac-ab-key-1.d | 27 ++++++++++++++ .../cfi-sframe-aarch64-pac-ab-key-1.s | 36 +++++++++++++++++++ gas/testsuite/gas/cfi-sframe/cfi-sframe.exp | 1 + include/sframe.h | 25 +++++++++---- libsframe/doc/sframe-spec.texi | 8 ++++- libsframe/sframe-dump.c | 19 ++++++++++ 9 files changed, 135 insertions(+), 12 deletions(-) create mode 100644 gas/testsuite/gas/cfi-sframe/cfi-sframe-aarch64-pac-ab-key-1.d create mode 100644 gas/testsuite/gas/cfi-sframe/cfi-sframe-aarch64-pac-ab-key-1.s -- 2.37.2