diff options
| author | Jan Kiszka <jan.kiszka@siemens.com> | 2025-01-10 11:36:33 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-02-01 03:53:24 -0800 |
| commit | 4ebc417ef9cb34010a71270421fe320ec5d88aa2 (patch) | |
| tree | 3179acf3e21055f7a081b4592b6b0025a0e457e8 | |
| parent | a479b078fddb0ad7f9e3c6da22d9cf8f2b5c7799 (diff) | |
scripts/gdb: fix aarch64 userspace detection in get_current_task
At least recent gdb releases (seen with 14.2) return SP_EL0 as signed long
which lets the right-shift always return 0.
Link: https://lkml.kernel.org/r/dcd2fabc-9131-4b48-8419-6444e2d67454@siemens.com
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | scripts/gdb/linux/cpus.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/gdb/linux/cpus.py b/scripts/gdb/linux/cpus.py index 2f11c4f9c345..13eb8b3901b8 100644 --- a/scripts/gdb/linux/cpus.py +++ b/scripts/gdb/linux/cpus.py @@ -167,7 +167,7 @@ def get_current_task(cpu): var_ptr = gdb.parse_and_eval("&pcpu_hot.current_task") return per_cpu(var_ptr, cpu).dereference() elif utils.is_target_arch("aarch64"): - current_task_addr = gdb.parse_and_eval("$SP_EL0") + current_task_addr = gdb.parse_and_eval("(unsigned long)$SP_EL0") if (current_task_addr >> 63) != 0: current_task = current_task_addr.cast(task_ptr_type) return current_task.dereference() |