diff options
Diffstat (limited to 'usr/src/cmd/bhyve/gdb.c')
| -rw-r--r-- | usr/src/cmd/bhyve/gdb.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/usr/src/cmd/bhyve/gdb.c b/usr/src/cmd/bhyve/gdb.c index 6f6884eee8..720a55c58b 100644 --- a/usr/src/cmd/bhyve/gdb.c +++ b/usr/src/cmd/bhyve/gdb.c @@ -1840,6 +1840,42 @@ limit_gdb_socket(int s) } #endif + +#ifndef __FreeBSD__ +/* + * Equivalent to init_gdb() below, but without configuring the listening socket. + * This will allow the bhyve process to tolerate mdb attaching/detaching from + * the instance while it is running. + */ +void +init_mdb(struct vmctx *_ctx, bool wait) +{ + int error; + + error = pthread_mutex_init(&gdb_lock, NULL); + if (error != 0) + errc(1, error, "gdb mutex init"); + error = pthread_cond_init(&idle_vcpus, NULL); + if (error != 0) + errc(1, error, "gdb cv init"); + + ctx = _ctx; + stopped_vcpu = -1; + TAILQ_INIT(&breakpoints); + vcpu_state = calloc(guest_ncpus, sizeof(*vcpu_state)); + if (wait) { + /* + * Set vcpu 0 in vcpus_suspended. This will trigger the + * logic in gdb_cpu_add() to suspend the first vcpu before + * it starts execution. The vcpu will remain suspended + * until a debugger connects. + */ + CPU_SET(0, &vcpus_suspended); + stopped_vcpu = 0; + } +} +#endif + void init_gdb(struct vmctx *_ctx, int sport, bool wait) { |