Hello all:
It is only for analyzing issues, I guess it is helpful, so I send it,
welcome any other ideas, suggestions, and completions.
And next, I shall continue to improve the floating point instruction
features: "remove (u)int64_to_float64 from fdouble implementation".
Thanks.
On 3/16/16 23:38, cheng...@emindsoft.com.cn wrote:
> From: Chen Gang <gang.chen.5...@gmail.com>
>
> It is only for debug and analyzing tilegx qemu related issues.
>
> Signed-off-by: Chen Gang <gang.chen.5...@gmail.com>
> ---
> target-tilegx/helper.c | 34 ++++++++++++++++++++++++++++++++++
> target-tilegx/helper.h | 2 ++
> target-tilegx/translate.c | 37 +++++++++++++++++++++++++++++++++++++
> 3 files changed, 73 insertions(+)
>
> diff --git a/target-tilegx/helper.c b/target-tilegx/helper.c
> index 616c5c7..c7cfe66 100644
> --- a/target-tilegx/helper.c
> +++ b/target-tilegx/helper.c
> @@ -160,3 +160,37 @@ uint64_t helper_cmul2(uint64_t srca, uint64_t srcb, int
> shift, int round)
>
> return deposit32(realr >> shift, 16, 16, imagr >> shift);
> }
> +
> +extern char **debug_buf;
> +
> +#define DEBUG_DUMP_REGS
> +
> +static void dump_regs(CPUTLGState *env, int idx)
> +{
> +#ifdef DEBUG_DUMP_REGS
> + int i;
> +
> + if (debug_buf[idx][2] == '\n') {
> + for (i = 0; i < TILEGX_R_COUNT; i++) {
> + if (!(i % 4)) {
> + fprintf(stderr, "\n");
> + }
> + fprintf(stderr, "r%2.2u = %16.16lx, ", i, env->regs[i]);
> + }
> + fprintf(stderr, "\n");
> + for (i = 0; i < TILEGX_SPR_COUNT; i++) {
> + if (!(i % 8)) {
> + fprintf(stderr, "\n");
> + }
> + fprintf(stderr, "s%2.2u = %16.16lx, ", i, env->spregs[i]);
> + }
> + fprintf(stderr, "\n");
> + }
> +#endif
> +}
> +
> +void helper_print_step(CPUTLGState *env, int idx)
> +{
> + fprintf(stderr, "%s", debug_buf[idx]);
> + dump_regs(env, idx);
> +}
> diff --git a/target-tilegx/helper.h b/target-tilegx/helper.h
> index 9281d0f..74f796a 100644
> --- a/target-tilegx/helper.h
> +++ b/target-tilegx/helper.h
> @@ -24,3 +24,5 @@ DEF_HELPER_FLAGS_2(v1shrs, TCG_CALL_NO_RWG_SE, i64, i64,
> i64)
> DEF_HELPER_FLAGS_2(v2shl, TCG_CALL_NO_RWG_SE, i64, i64, i64)
> DEF_HELPER_FLAGS_2(v2shru, TCG_CALL_NO_RWG_SE, i64, i64, i64)
> DEF_HELPER_FLAGS_2(v2shrs, TCG_CALL_NO_RWG_SE, i64, i64, i64)
> +
> +DEF_HELPER_2(print_step, void, env, int)
> diff --git a/target-tilegx/translate.c b/target-tilegx/translate.c
> index 03918eb..8489494 100644
> --- a/target-tilegx/translate.c
> +++ b/target-tilegx/translate.c
> @@ -47,6 +47,43 @@ static const char * const reg_names[64] = {
> "sn", "idn0", "idn1", "udn0", "udn1", "udn2", "udn2", "zero"
> };
>
> +#define STATIC_DEBUG
> +
> +char **debug_buf;
> +
> +#ifdef STATIC_DEBUG
> +
> +#include <stdarg.h>
> +
> +#define qemu_log_mask(flag, fmt, ...) debug_print(flag, fmt, ##__VA_ARGS__)
> +
> +static int debug_idx;
> +
> +extern void debug_print(int flag, const char *fmt, ...);
> +
> +void debug_print(int flag, const char *fmt, ...)
> +{
> + va_list args;
> + char buf[0x400];
> + TCGv_i32 tmp;
> +
> + va_start(args, fmt);
> + vsprintf(buf, fmt, args);
> + va_end(args);
> +
> + if (!debug_buf) {
> + debug_buf = malloc(sizeof(char *) * 0x400000);
> + }
> + debug_buf[debug_idx] = malloc(strlen(buf) + 1);
> + strcpy(debug_buf[debug_idx], buf);
> +
> + tmp = tcg_const_i32(debug_idx++);
> + gen_helper_print_step(cpu_env, tmp);
> + tcg_temp_free_i32(tmp);
> +}
> +
> +#endif
> +
> /* Modified registers are cached in temporaries until the end of the bundle.
> */
> typedef struct {
> unsigned reg;
>
--
Chen Gang (陈刚)
Managing Natural Environments is the Duty of Human Beings.
