diff options
Diffstat (limited to 'contrib')
| -rw-r--r-- | contrib/elf2dmp/pdb.c | 4 | ||||
| -rw-r--r-- | contrib/plugins/ips.c | 49 | ||||
| -rw-r--r-- | contrib/plugins/meson.build | 2 |
3 files changed, 50 insertions, 5 deletions
diff --git a/contrib/elf2dmp/pdb.c b/contrib/elf2dmp/pdb.c index 492aca4..47c5126 100644 --- a/contrib/elf2dmp/pdb.c +++ b/contrib/elf2dmp/pdb.c @@ -14,8 +14,8 @@ * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA + * License along with this library; if not, see + * <https://www.gnu.org/licenses/>. */ #include "qemu/osdep.h" diff --git a/contrib/plugins/ips.c b/contrib/plugins/ips.c index e5297db..f110c56 100644 --- a/contrib/plugins/ips.c +++ b/contrib/plugins/ips.c @@ -129,20 +129,62 @@ static void plugin_exit(qemu_plugin_id_t id, void *udata) qemu_plugin_scoreboard_free(vcpus); } +typedef struct { + const char *suffix; + unsigned long multipler; +} ScaleEntry; + +/* a bit like units.h but not binary */ +static const ScaleEntry scales[] = { + { "k", 1000 }, + { "m", 1000 * 1000 }, + { "g", 1000 * 1000 * 1000 }, +}; + QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id, const qemu_info_t *info, int argc, char **argv) { + bool ipq_set = false; + for (int i = 0; i < argc; i++) { char *opt = argv[i]; g_auto(GStrv) tokens = g_strsplit(opt, "=", 2); if (g_strcmp0(tokens[0], "ips") == 0) { - max_insn_per_second = g_ascii_strtoull(tokens[1], NULL, 10); + char *endptr = NULL; + max_insn_per_second = g_ascii_strtoull(tokens[1], &endptr, 10); if (!max_insn_per_second && errno) { fprintf(stderr, "%s: couldn't parse %s (%s)\n", __func__, tokens[1], g_strerror(errno)); return -1; } + + if (endptr && *endptr != 0) { + g_autofree gchar *lower = g_utf8_strdown(endptr, -1); + unsigned long scale = 0; + + for (int j = 0; j < G_N_ELEMENTS(scales); j++) { + if (g_strcmp0(lower, scales[j].suffix) == 0) { + scale = scales[j].multipler; + break; + } + } + + if (scale) { + max_insn_per_second *= scale; + } else { + fprintf(stderr, "bad suffix: %s\n", endptr); + return -1; + } + } + } else if (g_strcmp0(tokens[0], "ipq") == 0) { + max_insn_per_quantum = g_ascii_strtoull(tokens[1], NULL, 10); + + if (!max_insn_per_quantum) { + fprintf(stderr, "bad ipq value: %s\n", tokens[0]); + return -1; + } + ipq_set = true; } else { fprintf(stderr, "option parsing failed: %s\n", opt); return -1; @@ -150,7 +192,10 @@ QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id, } vcpus = qemu_plugin_scoreboard_new(sizeof(vCPUTime)); - max_insn_per_quantum = max_insn_per_second / NUM_TIME_UPDATE_PER_SEC; + + if (!ipq_set) { + max_insn_per_quantum = max_insn_per_second / NUM_TIME_UPDATE_PER_SEC; + } if (max_insn_per_quantum == 0) { fprintf(stderr, "minimum of %d instructions per second needed\n", diff --git a/contrib/plugins/meson.build b/contrib/plugins/meson.build index fa8a426..1876bc7 100644 --- a/contrib/plugins/meson.build +++ b/contrib/plugins/meson.build @@ -24,7 +24,7 @@ endif if t.length() > 0 alias_target('contrib-plugins', t) else - run_target('contrib-plugins', command: find_program('true')) + run_target('contrib-plugins', command: [python, '-c', '']) endif plugin_modules += t |