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plugins/lockstep: make socket path not positional & parse bool arg 

Signed-off-by: Mahmoud Mandour <ma.mandourr@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210730135817.17816-6-ma.mandourr@gmail.com>
This commit is contained in:
Mahmoud Mandour 2021-07-30 15:58:09 +02:00 committed by Alex Bennée
parent 8a3eab66e6
commit b18a0cad81
2 changed files with 23 additions and 10 deletions
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31
contrib/plugins/lockstep.c
View File

@ -319,22 +319,35 @@ QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id,
int argc, char **argv)
{
int i;
if (!argc || !argv[0]) {
qemu_plugin_outs("Need a socket path to talk to other instance.");
return -1;
}
g_autofree char *sock_path = NULL;
for (i = 0; i < argc; i++) {
char *p = argv[i];
if (strcmp(p, "verbose") == 0) {
verbose = true;
} else if (!setup_unix_socket(argv[0])) {
qemu_plugin_outs("Failed to setup socket for communications.");
g_autofree char **tokens = g_strsplit(p, "=", 2);
if (g_strcmp0(tokens[0], "verbose") == 0) {
if (!qemu_plugin_bool_parse(tokens[0], tokens[1], &verbose)) {
fprintf(stderr, "boolean argument parsing failed: %s\n", p);
return -1;
}
} else if (g_strcmp0(tokens[0], "sockpath") == 0) {
sock_path = tokens[1];
} else {
fprintf(stderr, "option parsing failed: %s\n", p);
return -1;
}
}
if (sock_path == NULL) {
fprintf(stderr, "Need a socket path to talk to other instance.\n");
return -1;
}
if (!setup_unix_socket(sock_path)) {
fprintf(stderr, "Failed to setup socket for communications.\n");
return -1;
}
our_id = id;
qemu_plugin_register_vcpu_tb_trans_cb(id, vcpu_tb_trans);

2
docs/devel/tcg-plugins.rst
View File

@ -286,7 +286,7 @@ communicate over::
./sparc-softmmu/qemu-system-sparc -monitor none -parallel none \
-net none -M SS-20 -m 256 -kernel day11/zImage.elf \
-plugin ./contrib/plugins/liblockstep.so,arg=lockstep-sparc.sock \
-plugin ./contrib/plugins/liblockstep.so,sockpath=lockstep-sparc.sock \
-d plugin,nochain
which will eventually report::