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author | Jan Kiszka <jan.kiszka@siemens.com> | 2009-06-27 09:53:51 +0200 |
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committer | Anthony Liguori <aliguori@us.ibm.com> | 2009-07-16 08:28:13 -0500 |
commit | dd32aa10476d04853b71657d5345e812915d87ed (patch) | |
tree | db1ebcc2f687b0726ebd322c9f35e203d27163fa /gdbstub.c | |
parent | 8389e7f4e1412cee0d8f8c21a1386259338a6299 (diff) | |
download | qemu-dd32aa10476d04853b71657d5345e812915d87ed.zip qemu-dd32aa10476d04853b71657d5345e812915d87ed.tar.gz qemu-dd32aa10476d04853b71657d5345e812915d87ed.tar.bz2 |
gdbstub: Add vCont support
This patch adds support for the vCont remote gdb command. It is used by
gdb 6.8 or better to switch the debugging focus for single-stepping
multi-threaded targets, ie. multi-threaded application in user mode
emulation or VCPUs in system emulation.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'gdbstub.c')
-rw-r--r-- | gdbstub.c | 58 |
1 files changed, 58 insertions, 0 deletions
@@ -1631,6 +1631,64 @@ static int gdb_handle_packet(GDBState *s, const char *line_buf) s->signal = 0; gdb_continue(s); return RS_IDLE; + case 'v': + if (strncmp(p, "Cont", 4) == 0) { + int res_signal, res_thread; + + p += 4; + if (*p == '?') { + put_packet(s, "vCont;c;C;s;S"); + break; + } + res = 0; + res_signal = 0; + res_thread = 0; + while (*p) { + int action, signal; + + if (*p++ != ';') { + res = 0; + break; + } + action = *p++; + signal = 0; + if (action == 'C' || action == 'S') { + signal = strtoul(p, (char **)&p, 16); + } else if (action != 'c' && action != 's') { + res = 0; + break; + } + thread = 0; + if (*p == ':') { + thread = strtoull(p+1, (char **)&p, 16); + } + action = tolower(action); + if (res == 0 || (res == 'c' && action == 's')) { + res = action; + res_signal = signal; + res_thread = thread; + } + } + if (res) { + if (res_thread != -1 && res_thread != 0) { + env = find_cpu(res_thread); + if (env == NULL) { + put_packet(s, "E22"); + break; + } + s->c_cpu = env; + } + if (res == 's') { + cpu_single_step(s->c_cpu, sstep_flags); + } + s->signal = res_signal; + gdb_continue(s); + return RS_IDLE; + } + break; + } else { + goto unknown_command; + } case 'k': /* Kill the target */ fprintf(stderr, "\nQEMU: Terminated via GDBstub\n"); |