diff options
Diffstat (limited to 'gdbstub.c')
| -rw-r--r-- | gdbstub.c | 39 |
1 files changed, 34 insertions, 5 deletions
@@ -73,6 +73,11 @@ typedef struct GDBState { #endif } GDBState; +/* By default use no IRQs and no timers while single stepping so as to + * make single stepping like an ICE HW step. + */ +static int sstep_flags = SSTEP_ENABLE|SSTEP_NOIRQ|SSTEP_NOTIMER; + #ifdef CONFIG_USER_ONLY /* XXX: This is not thread safe. Do we care? */ static int gdbserver_fd = -1; @@ -1072,7 +1077,7 @@ static int gdb_handle_packet(GDBState *s, CPUState *env, const char *line_buf) env->pc = addr; #endif } - cpu_single_step(env, 1); + cpu_single_step(env, sstep_flags); gdb_continue(s); return RS_IDLE; case 'F': @@ -1179,9 +1184,34 @@ static int gdb_handle_packet(GDBState *s, CPUState *env, const char *line_buf) goto breakpoint_error; } break; -#ifdef CONFIG_LINUX_USER case 'q': - if (strncmp(p, "Offsets", 7) == 0) { + case 'Q': + /* parse any 'q' packets here */ + if (!strcmp(p,"qemu.sstepbits")) { + /* Query Breakpoint bit definitions */ + sprintf(buf,"ENABLE=%x,NOIRQ=%x,NOTIMER=%x", + SSTEP_ENABLE, + SSTEP_NOIRQ, + SSTEP_NOTIMER); + put_packet(s, buf); + break; + } else if (strncmp(p,"qemu.sstep",10) == 0) { + /* Display or change the sstep_flags */ + p += 10; + if (*p != '=') { + /* Display current setting */ + sprintf(buf,"0x%x", sstep_flags); + put_packet(s, buf); + break; + } + p++; + type = strtoul(p, (char **)&p, 16); + sstep_flags = type; + put_packet(s, "OK"); + break; + } +#ifdef CONFIG_LINUX_USER + else if (strncmp(p, "Offsets", 7) == 0) { TaskState *ts = env->opaque; sprintf(buf, @@ -1193,10 +1223,9 @@ static int gdb_handle_packet(GDBState *s, CPUState *env, const char *line_buf) put_packet(s, buf); break; } - /* Fall through. */ #endif + /* Fall through. */ default: - // unknown_command: /* put empty packet */ buf[0] = '\0'; put_packet(s, buf); |