target/riscv: gdbstub: Fix dynamic CSR XML generation

[PATCH] target/riscv: gdbstub: Fix dynamic CSR XML generation

Posted by Bin Meng 4 years, 6 months ago

From: Bin Meng <bin.meng@windriver.com>

Since commit 605def6eeee5 ("target/riscv: Use the RISCVException enum for CSR operations")
the CSR predicate() function was changed to return RISCV_EXCP_NONE
instead of 0 for a valid CSR, but it forgot to update the dynamic
CSR XML generation codes in gdbstub.

Fixes: 605def6eeee5 ("target/riscv: Use the RISCVException enum for CSR operations")
Reported-by: Xuzhou Cheng <xuzhou.cheng@windriver.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Xuzhou Cheng <xuzhou.cheng@windriver.com>
---

 target/riscv/gdbstub.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/riscv/gdbstub.c b/target/riscv/gdbstub.c
index ca78682cf4..a7a9c0b1fe 100644
--- a/target/riscv/gdbstub.c
+++ b/target/riscv/gdbstub.c
@@ -170,7 +170,7 @@ static int riscv_gen_dynamic_csr_xml(CPUState *cs, int base_reg)
 
     for (i = 0; i < CSR_TABLE_SIZE; i++) {
         predicate = csr_ops[i].predicate;
-        if (predicate && !predicate(env, i)) {
+        if (predicate && (predicate(env, i) == RISCV_EXCP_NONE)) {
             if (csr_ops[i].name) {
                 g_string_append_printf(s, "<reg name=\"%s\"", csr_ops[i].name);
             } else {
-- 
2.25.1

Re: [PATCH] target/riscv: gdbstub: Fix dynamic CSR XML generation

Posted by Alistair Francis 4 years, 6 months ago

On Tue, Jun 15, 2021 at 6:51 PM Bin Meng <bmeng.cn@gmail.com> wrote:
>
> From: Bin Meng <bin.meng@windriver.com>
>
> Since commit 605def6eeee5 ("target/riscv: Use the RISCVException enum for CSR operations")
> the CSR predicate() function was changed to return RISCV_EXCP_NONE
> instead of 0 for a valid CSR, but it forgot to update the dynamic
> CSR XML generation codes in gdbstub.
>
> Fixes: 605def6eeee5 ("target/riscv: Use the RISCVException enum for CSR operations")
> Reported-by: Xuzhou Cheng <xuzhou.cheng@windriver.com>
> Signed-off-by: Bin Meng <bin.meng@windriver.com>
> Tested-by: Xuzhou Cheng <xuzhou.cheng@windriver.com>

Thanks!

Applied to riscv-to-apply.next

Alistair

> ---
>
>  target/riscv/gdbstub.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/target/riscv/gdbstub.c b/target/riscv/gdbstub.c
> index ca78682cf4..a7a9c0b1fe 100644
> --- a/target/riscv/gdbstub.c
> +++ b/target/riscv/gdbstub.c
> @@ -170,7 +170,7 @@ static int riscv_gen_dynamic_csr_xml(CPUState *cs, int base_reg)
>
>      for (i = 0; i < CSR_TABLE_SIZE; i++) {
>          predicate = csr_ops[i].predicate;
> -        if (predicate && !predicate(env, i)) {
> +        if (predicate && (predicate(env, i) == RISCV_EXCP_NONE)) {
>              if (csr_ops[i].name) {
>                  g_string_append_printf(s, "<reg name=\"%s\"", csr_ops[i].name);
>              } else {
> --
> 2.25.1
>
>

Re: [PATCH] target/riscv: gdbstub: Fix dynamic CSR XML generation

Posted by Alistair Francis 4 years, 6 months ago

On Tue, Jun 15, 2021 at 6:51 PM Bin Meng <bmeng.cn@gmail.com> wrote:
>
> From: Bin Meng <bin.meng@windriver.com>
>
> Since commit 605def6eeee5 ("target/riscv: Use the RISCVException enum for CSR operations")
> the CSR predicate() function was changed to return RISCV_EXCP_NONE
> instead of 0 for a valid CSR, but it forgot to update the dynamic
> CSR XML generation codes in gdbstub.
>
> Fixes: 605def6eeee5 ("target/riscv: Use the RISCVException enum for CSR operations")
> Reported-by: Xuzhou Cheng <xuzhou.cheng@windriver.com>
> Signed-off-by: Bin Meng <bin.meng@windriver.com>
> Tested-by: Xuzhou Cheng <xuzhou.cheng@windriver.com>

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

Alistair

> ---
>
>  target/riscv/gdbstub.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/target/riscv/gdbstub.c b/target/riscv/gdbstub.c
> index ca78682cf4..a7a9c0b1fe 100644
> --- a/target/riscv/gdbstub.c
> +++ b/target/riscv/gdbstub.c
> @@ -170,7 +170,7 @@ static int riscv_gen_dynamic_csr_xml(CPUState *cs, int base_reg)
>
>      for (i = 0; i < CSR_TABLE_SIZE; i++) {
>          predicate = csr_ops[i].predicate;
> -        if (predicate && !predicate(env, i)) {
> +        if (predicate && (predicate(env, i) == RISCV_EXCP_NONE)) {
>              if (csr_ops[i].name) {
>                  g_string_append_printf(s, "<reg name=\"%s\"", csr_ops[i].name);
>              } else {
> --
> 2.25.1
>
>