diff options
| author | Mathis Salmen <[email protected]> | 2023-04-06 12:11:31 +0200 |
|---|---|---|
| committer | Palmer Dabbelt <[email protected]> | 2023-04-11 12:52:27 -0700 |
| commit | 8d736482749f6d350892ef83a7a11d43cd49981e (patch) | |
| tree | 8b4430f45e2dc1a2b4829f34555933d2145a27cd /scripts/gdb/linux/mm.py | |
| parent | 4622f159098e098611f393cccf73d52b007e70bc (diff) | |
riscv: add icache flush for nommu sigreturn trampoline
In a NOMMU kernel, sigreturn trampolines are generated on the user
stack by setup_rt_frame. Currently, these trampolines are not instruction
fenced, thus their visibility to ifetch is not guaranteed.
This patch adds a flush_icache_range in setup_rt_frame to fix this
problem.
Signed-off-by: Mathis Salmen <[email protected]>
Fixes: 6bd33e1ece52 ("riscv: add nommu support")
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Palmer Dabbelt <[email protected]>
Diffstat (limited to 'scripts/gdb/linux/mm.py')
0 files changed, 0 insertions, 0 deletions