This patchset is to fix the issue discovered in this thread when hexagon toolchain was upgraded to a newer version.
https://lists.gnu.org/archive/html/qemu-devel/2021-11/msg01102.html Investigation revealed that the bug was not in the toolchain as suspected in the above thread, but in the hexagon specific logic in linux-user for saving & restoring thread context during signal delivery. The first patch contains the fix for the issue along with a test case and the second patch contains the change to rename the enum for HEX_REG_P3_0 register, to provide some warning to new code that it is an aliased version of the individual predicate registers. - Mukilan *** Changes in v2 *** Addressed the following review comments: 1) Fixed year in copyright line of signal_context.c 2) Moved variable decls to top of function in signal_context.c 3) Added PASS/FAIL output to signal_context.c test case Mukilan Thiyagarajan (2): linux-user/hexagon: fix signal context save & restore target/hexagon: rename aliased register HEX_REG_P3_0 linux-user/hexagon/signal.c | 17 +++--- target/hexagon/cpu.c | 6 +-- target/hexagon/genptr.c | 12 ++--- target/hexagon/hex_regs.h | 2 +- tests/tcg/hexagon/Makefile.target | 1 + tests/tcg/hexagon/signal_context.c | 84 ++++++++++++++++++++++++++++++ 6 files changed, 106 insertions(+), 16 deletions(-) create mode 100644 tests/tcg/hexagon/signal_context.c -- 2.17.1
