Message ID | 20181115094207.22846-13-luc.michel@greensocs.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Series | gdbstub: support for the multiprocess extension | expand |
On Thu, Nov 15, 2018 at 10:42:03AM +0100, Luc Michel wrote: > Add support for the vAttach packets. In multiprocess mode, GDB sends > them to attach to additional processes. > > Signed-off-by: Luc Michel <luc.michel@greensocs.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> > --- > gdbstub.c | 35 +++++++++++++++++++++++++++++++++++ > 1 file changed, 35 insertions(+) > > diff --git a/gdbstub.c b/gdbstub.c > index ada53ac559..0427d1c4f0 100644 > --- a/gdbstub.c > +++ b/gdbstub.c > @@ -1340,10 +1340,45 @@ static int gdb_handle_packet(GDBState *s, const char *line_buf) > break; > } > goto unknown_command; > } > break; > + } else if (strncmp(p, "Attach;", 7) == 0) { > + unsigned long pid; > + > + p += 7; > + > + if (qemu_strtoul(p, &p, 16, &pid)) { > + put_packet(s, "E22"); > + break; > + } > + > + process = gdb_get_process(s, pid); > + > + if (process == NULL) { > + put_packet(s, "E22"); > + break; > + } > + > + cpu = get_first_cpu_in_process(s, process); > + > + if (cpu == NULL) { > + /* Refuse to attach an empty process */ > + put_packet(s, "E22"); > + break; > + } > + > + process->attached = true; > + > + s->g_cpu = cpu; > + s->c_cpu = cpu; > + > + snprintf(buf, sizeof(buf), "T%02xthread:%s;", GDB_SIGNAL_TRAP, > + gdb_fmt_thread_id(s, cpu, thread_id, sizeof(thread_id))); > + > + put_packet(s, buf); > + break; > } else { > goto unknown_command; > } > case 'k': > /* Kill the target */ > -- > 2.19.1 >
On 15/11/2018 1:42 am, Luc Michel wrote: > Add support for the vAttach packets. In multiprocess mode, GDB sends > them to attach to additional processes. > > Signed-off-by: Luc Michel <luc.michel@greensocs.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> Alistair > --- > gdbstub.c | 35 +++++++++++++++++++++++++++++++++++ > 1 file changed, 35 insertions(+) > > diff --git a/gdbstub.c b/gdbstub.c > index ada53ac559..0427d1c4f0 100644 > --- a/gdbstub.c > +++ b/gdbstub.c > @@ -1340,10 +1340,45 @@ static int gdb_handle_packet(GDBState *s, const char *line_buf) > break; > } > goto unknown_command; > } > break; > + } else if (strncmp(p, "Attach;", 7) == 0) { > + unsigned long pid; > + > + p += 7; > + > + if (qemu_strtoul(p, &p, 16, &pid)) { > + put_packet(s, "E22"); > + break; > + } > + > + process = gdb_get_process(s, pid); > + > + if (process == NULL) { > + put_packet(s, "E22"); > + break; > + } > + > + cpu = get_first_cpu_in_process(s, process); > + > + if (cpu == NULL) { > + /* Refuse to attach an empty process */ > + put_packet(s, "E22"); > + break; > + } > + > + process->attached = true; > + > + s->g_cpu = cpu; > + s->c_cpu = cpu; > + > + snprintf(buf, sizeof(buf), "T%02xthread:%s;", GDB_SIGNAL_TRAP, > + gdb_fmt_thread_id(s, cpu, thread_id, sizeof(thread_id))); > + > + put_packet(s, buf); > + break; > } else { > goto unknown_command; > } > case 'k': > /* Kill the target */ >
diff --git a/gdbstub.c b/gdbstub.c index ada53ac559..0427d1c4f0 100644 --- a/gdbstub.c +++ b/gdbstub.c @@ -1340,10 +1340,45 @@ static int gdb_handle_packet(GDBState *s, const char *line_buf) break; } goto unknown_command; } break; + } else if (strncmp(p, "Attach;", 7) == 0) { + unsigned long pid; + + p += 7; + + if (qemu_strtoul(p, &p, 16, &pid)) { + put_packet(s, "E22"); + break; + } + + process = gdb_get_process(s, pid); + + if (process == NULL) { + put_packet(s, "E22"); + break; + } + + cpu = get_first_cpu_in_process(s, process); + + if (cpu == NULL) { + /* Refuse to attach an empty process */ + put_packet(s, "E22"); + break; + } + + process->attached = true; + + s->g_cpu = cpu; + s->c_cpu = cpu; + + snprintf(buf, sizeof(buf), "T%02xthread:%s;", GDB_SIGNAL_TRAP, + gdb_fmt_thread_id(s, cpu, thread_id, sizeof(thread_id))); + + put_packet(s, buf); + break; } else { goto unknown_command; } case 'k': /* Kill the target */
Add support for the vAttach packets. In multiprocess mode, GDB sends them to attach to additional processes. Signed-off-by: Luc Michel <luc.michel@greensocs.com> --- gdbstub.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+)