diff options
| author | Mark Rutland <mark.rutland@arm.com> | 2018-07-05 17:16:51 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-04-02 17:34:28 +0300 |
| commit | e5c83bb6a4213f4a134c8e8f700895c103e3653c (patch) | |
| tree | 9aa79534e3904ae42aad8d44c3d7fe3ecdfd2b4f /arch/arm64 | |
| parent | 45aa094b494162605b3024c8b5328faa298d0e1d (diff) | |
| download | linux-e5c83bb6a4213f4a134c8e8f700895c103e3653c.tar.xz | |
arm64: ptrace: map SPSR_ELx<->PSR for compat tasks
commit 76fc52bd07d3e9cb708f1a50b60c825c96acd606 upstream.
The SPSR_ELx format for exceptions taken from AArch32 is slightly
different to the AArch32 PSR format.
Map between the two in the compat ptrace code.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Fixes: 7206dc93a58fb764 ("arm64: Expose Arm v8.4 features")
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Suzuki Poulose <suzuki.poulose@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/kernel/ptrace.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c index e230b4dff960..e8574b95bda8 100644 --- a/arch/arm64/kernel/ptrace.c +++ b/arch/arm64/kernel/ptrace.c @@ -833,6 +833,7 @@ static int compat_gpr_get(struct task_struct *target, break; case 16: reg = task_pt_regs(target)->pstate; + reg = pstate_to_compat_psr(reg); break; case 17: reg = task_pt_regs(target)->orig_x0; @@ -900,6 +901,7 @@ static int compat_gpr_set(struct task_struct *target, newregs.pc = reg; break; case 16: + reg = compat_psr_to_pstate(reg); newregs.pstate = reg; break; case 17: |