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| author | Deepak Gupta <debug@rivosinc.com> | 2026-01-26 07:09:55 +0300 |
|---|---|---|
| committer | Paul Walmsley <pjw@kernel.org> | 2026-01-29 12:38:40 +0300 |
| commit | 9d0e75e25e3be74828ffb7657992ce0f03352cc3 (patch) | |
| tree | 545363b238892f0e5edc5db734cd593b68ecb71c | |
| parent | 66c9c713de597f9b40a319ebda4d3466ce2cdff0 (diff) | |
| download | linux-9d0e75e25e3be74828ffb7657992ce0f03352cc3.tar.xz | |
riscv/kernel: update __show_regs() to print shadow stack register
Update __show_regs() to print the captured shadow stack pointer. On
tasks where shadow stack is disabled, simply print 0.
Signed-off-by: Deepak Gupta <debug@rivosinc.com>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Tested-by: Andreas Korb <andreas.korb@aisec.fraunhofer.de> # QEMU, custom CVA6
Tested-by: Valentin Haudiquet <valentin.haudiquet@canonical.com>
Link: https://patch.msgid.link/20251112-v5_user_cfi_series-v23-18-b55691eacf4f@rivosinc.com
[pjw@kernel.org: cleaned up patch description]
Signed-off-by: Paul Walmsley <pjw@kernel.org>
| -rw-r--r-- | arch/riscv/kernel/process.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/riscv/kernel/process.c b/arch/riscv/kernel/process.c index 49f527e3acfd..aacb23978f93 100644 --- a/arch/riscv/kernel/process.c +++ b/arch/riscv/kernel/process.c @@ -93,8 +93,8 @@ void __show_regs(struct pt_regs *regs) regs->s8, regs->s9, regs->s10); pr_cont(" s11: " REG_FMT " t3 : " REG_FMT " t4 : " REG_FMT "\n", regs->s11, regs->t3, regs->t4); - pr_cont(" t5 : " REG_FMT " t6 : " REG_FMT "\n", - regs->t5, regs->t6); + pr_cont(" t5 : " REG_FMT " t6 : " REG_FMT " ssp : " REG_FMT "\n", + regs->t5, regs->t6, get_active_shstk(current)); pr_cont("status: " REG_FMT " badaddr: " REG_FMT " cause: " REG_FMT "\n", regs->status, regs->badaddr, regs->cause); |