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tcwg-buildslave pushed a change to branch linaro-local/ci/tcwg_gnu/gnu-release-arm-bootstrap_O1 in repository toolchain/ci/gcc.

from a9c2fba8529 Daily bump. adds c74b896317b Daily bump. adds 09809e84d76 libsanitizer: Fix GetPcSpBp determination of SP on 32-bit S [...] adds 0a8cf19d14f cpp: Do not use @dots for ... tokens in code examples adds c512a43092a Daily bump. new 20da13e395b aarch64: New Straight Line Speculation (SLS) mitigation flags new dc586a74922 aarch64: Introduce SLS mitigation for RET and BR instructions new 2155170525f aarch64: Mitigate SLS for BLR instruction

The 3 revisions listed above as "new" are entirely new to this repository and will be described in separate emails. The revisions listed as "adds" were already present in the repository and have only been added to this reference.

Summary of changes: gcc/ChangeLog | 8 + gcc/DATESTAMP | 2 +- gcc/config/aarch64/aarch64-protos.h | 5 + gcc/config/aarch64/aarch64.c | 342 ++++++++++++++++++++- gcc/config/aarch64/aarch64.h | 25 +- gcc/config/aarch64/aarch64.md | 86 ++++-- gcc/config/aarch64/aarch64.opt | 4 + gcc/config/aarch64/constraints.md | 9 + gcc/config/aarch64/predicates.md | 3 +- gcc/doc/cpp.texi | 14 +- gcc/doc/invoke.texi | 12 + .../aarch64/sls-mitigation/sls-miti-blr-bti.c | 40 +++ .../aarch64/sls-mitigation/sls-miti-blr.c | 33 ++ .../aarch64/sls-mitigation/sls-miti-retbr-pacret.c | 15 + .../aarch64/sls-mitigation/sls-miti-retbr.c | 119 +++++++ .../aarch64/sls-mitigation/sls-mitigation.exp | 73 +++++ gcc/testsuite/lib/target-supports.exp | 3 +- libsanitizer/ChangeLog | 5 + libsanitizer/sanitizer_common/sanitizer_linux.cc | 6 +- 19 files changed, 759 insertions(+), 45 deletions(-) create mode 100644 gcc/testsuite/gcc.target/aarch64/sls-mitigation/sls-miti-blr-bti.c create mode 100644 gcc/testsuite/gcc.target/aarch64/sls-mitigation/sls-miti-blr.c create mode 100644 gcc/testsuite/gcc.target/aarch64/sls-mitigation/sls-miti-retbr- [...] create mode 100644 gcc/testsuite/gcc.target/aarch64/sls-mitigation/sls-miti-retbr.c create mode 100644 gcc/testsuite/gcc.target/aarch64/sls-mitigation/sls-mitigation.exp