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test/plugin: make insn plugin less noisy by default 

While the match functionality is useful lets make the verbosity
optional while we are actually running.

Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240705084047.857176-22-alex.bennee@linaro.org>
This commit is contained in:
Alex Bennée 2024-07-05 09:40:28 +01:00
parent a4ad4db484
commit 03295660c8
1 changed files with 21 additions and 15 deletions
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36
tests/plugin/insn.c
View File

@ -20,6 +20,7 @@ static qemu_plugin_u64 insn_count;
static bool do_inline;
static bool do_size;
static bool do_trace;
static GArray *sizes;
typedef struct {
@ -73,30 +74,30 @@ static void vcpu_insn_matched_exec_before(unsigned int cpu_index, void *udata)
MatchCount *match = qemu_plugin_scoreboard_find(insn_match->counts,
cpu_index);
g_autoptr(GString) ts = g_string_new("");
insn->hits++;
g_string_append_printf(ts, "0x%" PRIx64 ", '%s', %"PRId64 " hits",
insn->vaddr, insn->disas, insn->hits);
uint64_t icount = qemu_plugin_u64_get(insn_count, cpu_index);
uint64_t delta = icount - match->last_hit;
match->hits++;
match->total_delta += delta;
g_string_append_printf(ts,
" , cpu %u,"
" %"PRId64" match hits,"
" Δ+%"PRId64 " since last match,"
" %"PRId64 " avg insns/match\n",
cpu_index,
match->hits, delta,
match->total_delta / match->hits);
match->last_hit = icount;
qemu_plugin_outs(ts->str);
if (do_trace) {
g_autoptr(GString) ts = g_string_new("");
g_string_append_printf(ts, "0x%" PRIx64 ", '%s', %"PRId64 " hits",
insn->vaddr, insn->disas, insn->hits);
g_string_append_printf(ts,
" , cpu %u,"
" %"PRId64" match hits,"
" Δ+%"PRId64 " since last match,"
" %"PRId64 " avg insns/match\n",
cpu_index,
match->hits, delta,
match->total_delta / match->hits);
qemu_plugin_outs(ts->str);
}
}
static void vcpu_tb_trans(qemu_plugin_id_t id, struct qemu_plugin_tb *tb)
@ -216,6 +217,11 @@ QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id,
}
} else if (g_strcmp0(tokens[0], "match") == 0) {
parse_match(tokens[1]);
} else if (g_strcmp0(tokens[0], "trace") == 0) {
if (!qemu_plugin_bool_parse(tokens[0], tokens[1], &do_trace)) {
fprintf(stderr, "boolean argument parsing failed: %s\n", opt);
return -1;
}
} else {
fprintf(stderr, "option parsing failed: %s\n", opt);
return -1;