[v17] Add RX archtecture support

[Qemu-devel] [PATCH v17 23/24] target/rx: Dump bytes for each insn during disassembly

Posted by Yoshinori Sato 6 years, 3 months ago

From: Richard Henderson <richard.henderson@linaro.org>

There are so many different forms of each RX instruction
that it will be very useful to be able to look at the bytes
to see on which path a bug may lie.

Reviewed-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 target/rx/disas.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/target/rx/disas.c b/target/rx/disas.c
index 5a32a87534..d73b53db44 100644
--- a/target/rx/disas.c
+++ b/target/rx/disas.c
@@ -102,7 +102,21 @@ static int bdsp_s(DisasContext *ctx, int d)
 /* Include the auto-generated decoder.  */
 #include "decode.inc.c"
 
-#define prt(...) (ctx->dis->fprintf_func)((ctx->dis->stream), __VA_ARGS__)
+static void dump_bytes(DisasContext *ctx)
+{
+    int i, len = ctx->len;
+
+    for (i = 0; i < len; ++i) {
+        ctx->dis->fprintf_func(ctx->dis->stream, "%02x ", ctx->bytes[i]);
+    }
+    ctx->dis->fprintf_func(ctx->dis->stream, "%*c", (8 - i) * 3, '\t');
+}
+
+#define prt(...) \
+    do {                                                        \
+        dump_bytes(ctx);                                        \
+        ctx->dis->fprintf_func(ctx->dis->stream, __VA_ARGS__);  \
+    } while (0)
 
 #define RX_MEMORY_BYTE 0
 #define RX_MEMORY_WORD 1
-- 
2.11.0

Re: [Qemu-devel] [PATCH v17 23/24] target/rx: Dump bytes for each insn during disassembly

Posted by Philippe Mathieu-Daudé 6 years, 3 months ago

On 6/7/19 11:11 AM, Yoshinori Sato wrote:
> From: Richard Henderson <richard.henderson@linaro.org>
> 
> There are so many different forms of each RX instruction
> that it will be very useful to be able to look at the bytes
> to see on which path a bug may lie.
> 
> Reviewed-by: Yoshinori Sato <ysato@users.sourceforge.jp>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Again:
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
> ---
>  target/rx/disas.c | 16 +++++++++++++++-
>  1 file changed, 15 insertions(+), 1 deletion(-)
> 
> diff --git a/target/rx/disas.c b/target/rx/disas.c
> index 5a32a87534..d73b53db44 100644
> --- a/target/rx/disas.c
> +++ b/target/rx/disas.c
> @@ -102,7 +102,21 @@ static int bdsp_s(DisasContext *ctx, int d)
>  /* Include the auto-generated decoder.  */
>  #include "decode.inc.c"
>  
> -#define prt(...) (ctx->dis->fprintf_func)((ctx->dis->stream), __VA_ARGS__)
> +static void dump_bytes(DisasContext *ctx)
> +{
> +    int i, len = ctx->len;
> +
> +    for (i = 0; i < len; ++i) {
> +        ctx->dis->fprintf_func(ctx->dis->stream, "%02x ", ctx->bytes[i]);
> +    }
> +    ctx->dis->fprintf_func(ctx->dis->stream, "%*c", (8 - i) * 3, '\t');
> +}
> +
> +#define prt(...) \
> +    do {                                                        \
> +        dump_bytes(ctx);                                        \
> +        ctx->dis->fprintf_func(ctx->dis->stream, __VA_ARGS__);  \
> +    } while (0)
>  
>  #define RX_MEMORY_BYTE 0
>  #define RX_MEMORY_WORD 1
>