From: Deepak Gupta Date: Mon, 26 Jan 2026 04:09:55 +0000 (-0700) Subject: riscv/kernel: update __show_regs() to print shadow stack register X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9d0e75e25e3be74828ffb7657992ce0f03352cc3;p=thirdparty%2Flinux.git 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 Reviewed-by: Alexandre Ghiti Tested-by: Andreas Korb # QEMU, custom CVA6 Tested-by: Valentin Haudiquet 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 --- diff --git a/arch/riscv/kernel/process.c b/arch/riscv/kernel/process.c index 49f527e3acfdf..aacb23978f931 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);