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From: | weiwei |
Subject: | Re: [PATCH 12/18] target/riscv: Allow debugger to access user timer and counter CSRs |
Date: | Tue, 14 Feb 2023 17:16:28 +0800 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.7.1 |
On 2023/2/14 09:09, Bin Meng wrote:
At present user timer and counter CSRs are not reported in the CSR XML hence gdb cannot access them. Fix it by addding a debugger check in their predicate() routine.
typo: adding Otherwise, Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn> Regards, Weiwei Li
Signed-off-by: Bin Meng <bmeng@tinylab.org> --- target/riscv/csr.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/target/riscv/csr.c b/target/riscv/csr.c index 749d0ef83e..515b05348b 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -131,6 +131,10 @@ static RISCVException ctr(CPURISCVState *env, int csrno)skip_ext_pmu_check: + if (env->debugger) {+ return RISCV_EXCP_NONE; + } + if (env->priv < PRV_M && !get_field(env->mcounteren, ctr_mask)) { return RISCV_EXCP_ILLEGAL_INST; }
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