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| author | Johannes Berg <johannes.berg@intel.com> | 2024-10-22 14:02:38 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2024-10-23 09:04:59 +0200 |
| commit | 14d4a7b516e993cf3926758a7ede569d8e119855 (patch) | |
| tree | 73944a9852888a5207123438899c8aa684d39a0b /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | 8508a5e0e9db3932ca43651f86ba1042a1e9f4ca (diff) | |
um: make stub_exe _start() pure inline asm
Since __attribute__((naked)) cannot be used with functions
containing C statements, just generate the few instructions
it needs in assembly directly.
While at it, fix the stack usage ("1 + 2*x - 1" is odd) and
document what it must do, and why it must adjust the stack.
Fixes: 8508a5e0e9db ("um: Fix misaligned stack in stub_exe")
Link: https://lore.kernel.org/linux-um/CABVgOSntH-uoOFMP5HwMXjx_f1osMnVdhgKRKm4uz6DFm2Lb8Q@mail.gmail.com/
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions