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Fri, 15 Nov 2019 09:30:05 -0800 (PST) From: =?UTF-8?q?Alex=20Benn=C3=A9e?= To: qemu-devel@nongnu.org Subject: [RFC PATCH 02/11] gdbstub: stop passing GDBState * around Date: Fri, 15 Nov 2019 17:29:51 +0000 Message-Id: <20191115173000.21891-3-alex.bennee@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191115173000.21891-1-alex.bennee@linaro.org> References: <20191115173000.21891-1-alex.bennee@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::342 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: damien.hedde@greensocs.com, luis.machado@linaro.org, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , richard.henderson@linaro.org, alan.hayward@arm.com, =?UTF-8?q?Alex=20Benn=C3=A9e?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) We only have one GDBState which should be allocated at the time we process any commands. This will make further clean-up a bit easier. Signed-off-by: Alex Benn=C3=A9e Reviewed-by: Richard Henderson --- gdbstub.c | 307 +++++++++++++++++++++++++++++++----------------------- 1 file changed, 177 insertions(+), 130 deletions(-) diff --git a/gdbstub.c b/gdbstub.c index c5b6701825f..2e6ff5f583c 100644 --- a/gdbstub.c +++ b/gdbstub.c @@ -1399,7 +1399,6 @@ static int cmd_parse_params(const char *data, const c= har *schema, } =20 typedef struct GdbCmdContext { - GDBState *s; GdbCmdVariant *params; int num_params; uint8_t mem_buf[MAX_PACKET_LENGTH]; @@ -1480,7 +1479,7 @@ static int process_string_cmd(GDBState *s, void *user= _ctx, const char *data, return -1; } =20 - gdb_ctx.s =3D s; + g_assert(s =3D=3D gdbserver_state); cmd->handler(&gdb_ctx, user_ctx); return 0; } @@ -1505,7 +1504,7 @@ static void run_cmd_parser(GDBState *s, const char *d= ata, static void handle_detach(GdbCmdContext *gdb_ctx, void *user_ctx) { GDBProcess *process; - GDBState *s =3D gdb_ctx->s; + GDBState *s =3D gdbserver_state; uint32_t pid =3D 1; =20 if (s->multiprocess) { @@ -1540,40 +1539,44 @@ static void handle_detach(GdbCmdContext *gdb_ctx, v= oid *user_ctx) static void handle_thread_alive(GdbCmdContext *gdb_ctx, void *user_ctx) { CPUState *cpu; + GDBState *s =3D gdbserver_state; =20 if (!gdb_ctx->num_params) { - put_packet(gdb_ctx->s, "E22"); + put_packet(s, "E22"); return; } =20 if (gdb_ctx->params[0].thread_id.kind =3D=3D GDB_READ_THREAD_ERR) { - put_packet(gdb_ctx->s, "E22"); + put_packet(s, "E22"); return; } =20 - cpu =3D gdb_get_cpu(gdb_ctx->s, gdb_ctx->params[0].thread_id.pid, + cpu =3D gdb_get_cpu(s, gdb_ctx->params[0].thread_id.pid, gdb_ctx->params[0].thread_id.tid); if (!cpu) { - put_packet(gdb_ctx->s, "E22"); + put_packet(s, "E22"); return; } =20 - put_packet(gdb_ctx->s, "OK"); + put_packet(s, "OK"); } =20 static void handle_continue(GdbCmdContext *gdb_ctx, void *user_ctx) { + GDBState *s =3D gdbserver_state; + if (gdb_ctx->num_params) { - gdb_set_cpu_pc(gdb_ctx->s, gdb_ctx->params[0].val_ull); + gdb_set_cpu_pc(s, gdb_ctx->params[0].val_ull); } =20 - gdb_ctx->s->signal =3D 0; - gdb_continue(gdb_ctx->s); + s->signal =3D 0; + gdb_continue(s); } =20 static void handle_cont_with_sig(GdbCmdContext *gdb_ctx, void *user_ctx) { unsigned long signal =3D 0; + GDBState *s =3D gdbserver_state; =20 /* * Note: C sig;[addr] is currently unsupported and we simply @@ -1583,36 +1586,37 @@ static void handle_cont_with_sig(GdbCmdContext *gdb= _ctx, void *user_ctx) signal =3D gdb_ctx->params[0].val_ul; } =20 - gdb_ctx->s->signal =3D gdb_signal_to_target(signal); - if (gdb_ctx->s->signal =3D=3D -1) { - gdb_ctx->s->signal =3D 0; + s->signal =3D gdb_signal_to_target(signal); + if (s->signal =3D=3D -1) { + s->signal =3D 0; } - gdb_continue(gdb_ctx->s); + gdb_continue(s); } =20 static void handle_set_thread(GdbCmdContext *gdb_ctx, void *user_ctx) { CPUState *cpu; + GDBState *s =3D gdbserver_state; =20 if (gdb_ctx->num_params !=3D 2) { - put_packet(gdb_ctx->s, "E22"); + put_packet(s, "E22"); return; } =20 if (gdb_ctx->params[1].thread_id.kind =3D=3D GDB_READ_THREAD_ERR) { - put_packet(gdb_ctx->s, "E22"); + put_packet(s, "E22"); return; } =20 if (gdb_ctx->params[1].thread_id.kind !=3D GDB_ONE_THREAD) { - put_packet(gdb_ctx->s, "OK"); + put_packet(s, "OK"); return; } =20 - cpu =3D gdb_get_cpu(gdb_ctx->s, gdb_ctx->params[1].thread_id.pid, + cpu =3D gdb_get_cpu(s, gdb_ctx->params[1].thread_id.pid, gdb_ctx->params[1].thread_id.tid); if (!cpu) { - put_packet(gdb_ctx->s, "E22"); + put_packet(s, "E22"); return; } =20 @@ -1622,15 +1626,15 @@ static void handle_set_thread(GdbCmdContext *gdb_ct= x, void *user_ctx) */ switch (gdb_ctx->params[0].opcode) { case 'c': - gdb_ctx->s->c_cpu =3D cpu; - put_packet(gdb_ctx->s, "OK"); + s->c_cpu =3D cpu; + put_packet(s, "OK"); break; case 'g': - gdb_ctx->s->g_cpu =3D cpu; - put_packet(gdb_ctx->s, "OK"); + s->g_cpu =3D cpu; + put_packet(s, "OK"); break; default: - put_packet(gdb_ctx->s, "E22"); + put_packet(s, "E22"); break; } } @@ -1638,9 +1642,10 @@ static void handle_set_thread(GdbCmdContext *gdb_ctx= , void *user_ctx) static void handle_insert_bp(GdbCmdContext *gdb_ctx, void *user_ctx) { int res; + GDBState *s =3D gdbserver_state; =20 if (gdb_ctx->num_params !=3D 3) { - put_packet(gdb_ctx->s, "E22"); + put_packet(s, "E22"); return; } =20 @@ -1648,22 +1653,23 @@ static void handle_insert_bp(GdbCmdContext *gdb_ctx= , void *user_ctx) gdb_ctx->params[1].val_ull, gdb_ctx->params[2].val_ull); if (res >=3D 0) { - put_packet(gdb_ctx->s, "OK"); + put_packet(s, "OK"); return; } else if (res =3D=3D -ENOSYS) { - put_packet(gdb_ctx->s, ""); + put_packet(s, ""); return; } =20 - put_packet(gdb_ctx->s, "E22"); + put_packet(s, "E22"); } =20 static void handle_remove_bp(GdbCmdContext *gdb_ctx, void *user_ctx) { int res; + GDBState *s =3D gdbserver_state; =20 if (gdb_ctx->num_params !=3D 3) { - put_packet(gdb_ctx->s, "E22"); + put_packet(s, "E22"); return; } =20 @@ -1671,14 +1677,14 @@ static void handle_remove_bp(GdbCmdContext *gdb_ctx= , void *user_ctx) gdb_ctx->params[1].val_ull, gdb_ctx->params[2].val_ull); if (res >=3D 0) { - put_packet(gdb_ctx->s, "OK"); + put_packet(s, "OK"); return; } else if (res =3D=3D -ENOSYS) { - put_packet(gdb_ctx->s, ""); + put_packet(s, ""); return; } =20 - put_packet(gdb_ctx->s, "E22"); + put_packet(s, "E22"); } =20 /* @@ -1695,100 +1701,107 @@ static void handle_remove_bp(GdbCmdContext *gdb_c= tx, void *user_ctx) static void handle_set_reg(GdbCmdContext *gdb_ctx, void *user_ctx) { int reg_size; + GDBState *s =3D gdbserver_state; =20 if (!gdb_has_xml) { - put_packet(gdb_ctx->s, ""); + put_packet(s, ""); return; } =20 if (gdb_ctx->num_params !=3D 2) { - put_packet(gdb_ctx->s, "E22"); + put_packet(s, "E22"); return; } =20 reg_size =3D strlen(gdb_ctx->params[1].data) / 2; hextomem(gdb_ctx->mem_buf, gdb_ctx->params[1].data, reg_size); - gdb_write_register(gdb_ctx->s->g_cpu, gdb_ctx->mem_buf, + gdb_write_register(s->g_cpu, gdb_ctx->mem_buf, gdb_ctx->params[0].val_ull); - put_packet(gdb_ctx->s, "OK"); + put_packet(s, "OK"); } =20 static void handle_get_reg(GdbCmdContext *gdb_ctx, void *user_ctx) { int reg_size; + GDBState *s =3D gdbserver_state; =20 if (!gdb_has_xml) { - put_packet(gdb_ctx->s, ""); + put_packet(s, ""); return; } =20 if (!gdb_ctx->num_params) { - put_packet(gdb_ctx->s, "E14"); + put_packet(s, "E14"); return; } =20 - reg_size =3D gdb_read_register(gdb_ctx->s->g_cpu, gdb_ctx->mem_buf, + reg_size =3D gdb_read_register(s->g_cpu, gdb_ctx->mem_buf, gdb_ctx->params[0].val_ull); if (!reg_size) { - put_packet(gdb_ctx->s, "E14"); + put_packet(s, "E14"); return; } =20 memtohex(gdb_ctx->str_buf, gdb_ctx->mem_buf, reg_size); - put_packet(gdb_ctx->s, gdb_ctx->str_buf); + put_packet(s, gdb_ctx->str_buf); } =20 static void handle_write_mem(GdbCmdContext *gdb_ctx, void *user_ctx) { + GDBState *s =3D gdbserver_state; + if (gdb_ctx->num_params !=3D 3) { - put_packet(gdb_ctx->s, "E22"); + put_packet(s, "E22"); return; } =20 /* hextomem() reads 2*len bytes */ if (gdb_ctx->params[1].val_ull > strlen(gdb_ctx->params[2].data) / 2) { - put_packet(gdb_ctx->s, "E22"); + put_packet(s, "E22"); return; } =20 hextomem(gdb_ctx->mem_buf, gdb_ctx->params[2].data, gdb_ctx->params[1].val_ull); - if (target_memory_rw_debug(gdb_ctx->s->g_cpu, gdb_ctx->params[0].val_u= ll, + if (target_memory_rw_debug(s->g_cpu, gdb_ctx->params[0].val_ull, gdb_ctx->mem_buf, gdb_ctx->params[1].val_ull, true)) { - put_packet(gdb_ctx->s, "E14"); + put_packet(s, "E14"); return; } =20 - put_packet(gdb_ctx->s, "OK"); + put_packet(s, "OK"); } =20 static void handle_read_mem(GdbCmdContext *gdb_ctx, void *user_ctx) { + GDBState *s =3D gdbserver_state; + if (gdb_ctx->num_params !=3D 2) { - put_packet(gdb_ctx->s, "E22"); + put_packet(s, "E22"); return; } =20 /* memtohex() doubles the required space */ if (gdb_ctx->params[1].val_ull > MAX_PACKET_LENGTH / 2) { - put_packet(gdb_ctx->s, "E22"); + put_packet(s, "E22"); return; } =20 - if (target_memory_rw_debug(gdb_ctx->s->g_cpu, gdb_ctx->params[0].val_u= ll, + if (target_memory_rw_debug(s->g_cpu, gdb_ctx->params[0].val_ull, gdb_ctx->mem_buf, gdb_ctx->params[1].val_ull, false)) { - put_packet(gdb_ctx->s, "E14"); + put_packet(s, "E14"); return; } =20 memtohex(gdb_ctx->str_buf, gdb_ctx->mem_buf, gdb_ctx->params[1].val_ul= l); - put_packet(gdb_ctx->s, gdb_ctx->str_buf); + put_packet(s, gdb_ctx->str_buf); } =20 static void handle_write_all_regs(GdbCmdContext *gdb_ctx, void *user_ctx) { + GDBState *s =3D gdbserver_state; target_ulong addr, len; uint8_t *registers; int reg_size; @@ -1797,37 +1810,40 @@ static void handle_write_all_regs(GdbCmdContext *gd= b_ctx, void *user_ctx) return; } =20 - cpu_synchronize_state(gdb_ctx->s->g_cpu); + cpu_synchronize_state(s->g_cpu); registers =3D gdb_ctx->mem_buf; len =3D strlen(gdb_ctx->params[0].data) / 2; hextomem(registers, gdb_ctx->params[0].data, len); - for (addr =3D 0; addr < gdb_ctx->s->g_cpu->gdb_num_g_regs && len > 0; + for (addr =3D 0; addr < s->g_cpu->gdb_num_g_regs && len > 0; addr++) { - reg_size =3D gdb_write_register(gdb_ctx->s->g_cpu, registers, addr= ); + reg_size =3D gdb_write_register(s->g_cpu, registers, addr); len -=3D reg_size; registers +=3D reg_size; } - put_packet(gdb_ctx->s, "OK"); + put_packet(s, "OK"); } =20 static void handle_read_all_regs(GdbCmdContext *gdb_ctx, void *user_ctx) { + GDBState *s =3D gdbserver_state; target_ulong addr, len; =20 - cpu_synchronize_state(gdb_ctx->s->g_cpu); + cpu_synchronize_state(s->g_cpu); len =3D 0; - for (addr =3D 0; addr < gdb_ctx->s->g_cpu->gdb_num_g_regs; addr++) { - len +=3D gdb_read_register(gdb_ctx->s->g_cpu, gdb_ctx->mem_buf + l= en, + for (addr =3D 0; addr < s->g_cpu->gdb_num_g_regs; addr++) { + len +=3D gdb_read_register(s->g_cpu, gdb_ctx->mem_buf + len, addr); } =20 memtohex(gdb_ctx->str_buf, gdb_ctx->mem_buf, len); - put_packet(gdb_ctx->s, gdb_ctx->str_buf); + put_packet(s, gdb_ctx->str_buf); } =20 static void handle_file_io(GdbCmdContext *gdb_ctx, void *user_ctx) { - if (gdb_ctx->num_params >=3D 1 && gdb_ctx->s->current_syscall_cb) { + GDBState *s =3D gdbserver_state; + + if (gdb_ctx->num_params >=3D 1 && s->current_syscall_cb) { target_ulong ret, err; =20 ret =3D (target_ulong)gdb_ctx->params[0].val_ull; @@ -1836,51 +1852,56 @@ static void handle_file_io(GdbCmdContext *gdb_ctx, = void *user_ctx) } else { err =3D 0; } - gdb_ctx->s->current_syscall_cb(gdb_ctx->s->c_cpu, ret, err); - gdb_ctx->s->current_syscall_cb =3D NULL; + s->current_syscall_cb(s->c_cpu, ret, err); + s->current_syscall_cb =3D NULL; } =20 if (gdb_ctx->num_params >=3D 3 && gdb_ctx->params[2].opcode =3D=3D (ui= nt8_t)'C') { - put_packet(gdb_ctx->s, "T02"); + put_packet(s, "T02"); return; } =20 - gdb_continue(gdb_ctx->s); + gdb_continue(s); } =20 static void handle_step(GdbCmdContext *gdb_ctx, void *user_ctx) { + GDBState *s =3D gdbserver_state; + if (gdb_ctx->num_params) { - gdb_set_cpu_pc(gdb_ctx->s, (target_ulong)gdb_ctx->params[0].val_ul= l); + gdb_set_cpu_pc(s, (target_ulong)gdb_ctx->params[0].val_ull); } =20 - cpu_single_step(gdb_ctx->s->c_cpu, sstep_flags); - gdb_continue(gdb_ctx->s); + cpu_single_step(s->c_cpu, sstep_flags); + gdb_continue(s); } =20 static void handle_v_cont_query(GdbCmdContext *gdb_ctx, void *user_ctx) { - put_packet(gdb_ctx->s, "vCont;c;C;s;S"); + GDBState *s =3D gdbserver_state; + put_packet(s, "vCont;c;C;s;S"); } =20 static void handle_v_cont(GdbCmdContext *gdb_ctx, void *user_ctx) { + GDBState *s =3D gdbserver_state; int res; =20 if (!gdb_ctx->num_params) { return; } =20 - res =3D gdb_handle_vcont(gdb_ctx->s, gdb_ctx->params[0].data); + res =3D gdb_handle_vcont(s, gdb_ctx->params[0].data); if ((res =3D=3D -EINVAL) || (res =3D=3D -ERANGE)) { - put_packet(gdb_ctx->s, "E22"); + put_packet(s, "E22"); } else if (res) { - put_packet(gdb_ctx->s, ""); + put_packet(s, ""); } } =20 static void handle_v_attach(GdbCmdContext *gdb_ctx, void *user_ctx) { + GDBState *s =3D gdbserver_state; GDBProcess *process; CPUState *cpu; char thread_id[16]; @@ -1890,31 +1911,33 @@ static void handle_v_attach(GdbCmdContext *gdb_ctx,= void *user_ctx) goto cleanup; } =20 - process =3D gdb_get_process(gdb_ctx->s, gdb_ctx->params[0].val_ul); + process =3D gdb_get_process(s, gdb_ctx->params[0].val_ul); if (!process) { goto cleanup; } =20 - cpu =3D get_first_cpu_in_process(gdb_ctx->s, process); + cpu =3D get_first_cpu_in_process(s, process); if (!cpu) { goto cleanup; } =20 process->attached =3D true; - gdb_ctx->s->g_cpu =3D cpu; - gdb_ctx->s->c_cpu =3D cpu; + s->g_cpu =3D cpu; + s->c_cpu =3D cpu; =20 - gdb_fmt_thread_id(gdb_ctx->s, cpu, thread_id, sizeof(thread_id)); + gdb_fmt_thread_id(s, cpu, thread_id, sizeof(thread_id)); snprintf(gdb_ctx->str_buf, sizeof(gdb_ctx->str_buf), "T%02xthread:%s;", GDB_SIGNAL_TRAP, thread_id); cleanup: - put_packet(gdb_ctx->s, gdb_ctx->str_buf); + put_packet(s, gdb_ctx->str_buf); } =20 static void handle_v_kill(GdbCmdContext *gdb_ctx, void *user_ctx) { + GDBState *s =3D gdbserver_state; + /* Kill the target */ - put_packet(gdb_ctx->s, "OK"); + put_packet(s, "OK"); error_report("QEMU: Terminated via GDBstub"); exit(0); } @@ -1947,43 +1970,52 @@ static GdbCmdParseEntry gdb_v_commands_table[] =3D { =20 static void handle_v_commands(GdbCmdContext *gdb_ctx, void *user_ctx) { + GDBState *s =3D gdbserver_state; + if (!gdb_ctx->num_params) { return; } =20 - if (process_string_cmd(gdb_ctx->s, NULL, gdb_ctx->params[0].data, + if (process_string_cmd(s, NULL, gdb_ctx->params[0].data, gdb_v_commands_table, ARRAY_SIZE(gdb_v_commands_table))) { - put_packet(gdb_ctx->s, ""); + put_packet(s, ""); } } =20 static void handle_query_qemu_sstepbits(GdbCmdContext *gdb_ctx, void *user= _ctx) { + GDBState *s =3D gdbserver_state; + snprintf(gdb_ctx->str_buf, sizeof(gdb_ctx->str_buf), "ENABLE=3D%x,NOIRQ=3D%x,NOTIMER=3D%x", SSTEP_ENABLE, SSTEP_NOIRQ, SSTEP_NOTIMER); - put_packet(gdb_ctx->s, gdb_ctx->str_buf); + put_packet(s, gdb_ctx->str_buf); } =20 static void handle_set_qemu_sstep(GdbCmdContext *gdb_ctx, void *user_ctx) { + GDBState *s =3D gdbserver_state; + if (!gdb_ctx->num_params) { return; } =20 sstep_flags =3D gdb_ctx->params[0].val_ul; - put_packet(gdb_ctx->s, "OK"); + put_packet(s, "OK"); } =20 static void handle_query_qemu_sstep(GdbCmdContext *gdb_ctx, void *user_ctx) { + GDBState *s =3D gdbserver_state; + snprintf(gdb_ctx->str_buf, sizeof(gdb_ctx->str_buf), "0x%x", sstep_fla= gs); - put_packet(gdb_ctx->s, gdb_ctx->str_buf); + put_packet(s, gdb_ctx->str_buf); } =20 static void handle_query_curr_tid(GdbCmdContext *gdb_ctx, void *user_ctx) { + GDBState *s =3D gdbserver_state; CPUState *cpu; GDBProcess *process; char thread_id[16]; @@ -1993,48 +2025,51 @@ static void handle_query_curr_tid(GdbCmdContext *gd= b_ctx, void *user_ctx) * the first thread of the current process (gdb returns the * first thread). */ - process =3D gdb_get_cpu_process(gdb_ctx->s, gdb_ctx->s->g_cpu); - cpu =3D get_first_cpu_in_process(gdb_ctx->s, process); - gdb_fmt_thread_id(gdb_ctx->s, cpu, thread_id, sizeof(thread_id)); + process =3D gdb_get_cpu_process(s, s->g_cpu); + cpu =3D get_first_cpu_in_process(s, process); + gdb_fmt_thread_id(s, cpu, thread_id, sizeof(thread_id)); snprintf(gdb_ctx->str_buf, sizeof(gdb_ctx->str_buf), "QC%s", thread_id= ); - put_packet(gdb_ctx->s, gdb_ctx->str_buf); + put_packet(s, gdb_ctx->str_buf); } =20 static void handle_query_threads(GdbCmdContext *gdb_ctx, void *user_ctx) { + GDBState *s =3D gdbserver_state; char thread_id[16]; =20 - if (!gdb_ctx->s->query_cpu) { - put_packet(gdb_ctx->s, "l"); + if (!s->query_cpu) { + put_packet(s, "l"); return; } =20 - gdb_fmt_thread_id(gdb_ctx->s, gdb_ctx->s->query_cpu, thread_id, + gdb_fmt_thread_id(s, s->query_cpu, thread_id, sizeof(thread_id)); snprintf(gdb_ctx->str_buf, sizeof(gdb_ctx->str_buf), "m%s", thread_id); - put_packet(gdb_ctx->s, gdb_ctx->str_buf); - gdb_ctx->s->query_cpu =3D - gdb_next_attached_cpu(gdb_ctx->s, gdb_ctx->s->query_cpu); + put_packet(s, gdb_ctx->str_buf); + s->query_cpu =3D + gdb_next_attached_cpu(s, s->query_cpu); } =20 static void handle_query_first_threads(GdbCmdContext *gdb_ctx, void *user_= ctx) { - gdb_ctx->s->query_cpu =3D gdb_first_attached_cpu(gdb_ctx->s); + GDBState *s =3D gdbserver_state; + s->query_cpu =3D gdb_first_attached_cpu(s); handle_query_threads(gdb_ctx, user_ctx); } =20 static void handle_query_thread_extra(GdbCmdContext *gdb_ctx, void *user_c= tx) { + GDBState *s =3D gdbserver_state; CPUState *cpu; int len; =20 if (!gdb_ctx->num_params || gdb_ctx->params[0].thread_id.kind =3D=3D GDB_READ_THREAD_ERR) { - put_packet(gdb_ctx->s, "E22"); + put_packet(s, "E22"); return; } =20 - cpu =3D gdb_get_cpu(gdb_ctx->s, gdb_ctx->params[0].thread_id.pid, + cpu =3D gdb_get_cpu(s, gdb_ctx->params[0].thread_id.pid, gdb_ctx->params[0].thread_id.tid); if (!cpu) { return; @@ -2042,7 +2077,7 @@ static void handle_query_thread_extra(GdbCmdContext *= gdb_ctx, void *user_ctx) =20 cpu_synchronize_state(cpu); =20 - if (gdb_ctx->s->multiprocess && (gdb_ctx->s->process_num > 1)) { + if (s->multiprocess && (s->process_num > 1)) { /* Print the CPU model and name in multiprocess mode */ ObjectClass *oc =3D object_get_class(OBJECT(cpu)); const char *cpu_model =3D object_class_get_name(oc); @@ -2059,50 +2094,53 @@ static void handle_query_thread_extra(GdbCmdContext= *gdb_ctx, void *user_ctx) } trace_gdbstub_op_extra_info((char *)gdb_ctx->mem_buf); memtohex(gdb_ctx->str_buf, gdb_ctx->mem_buf, len); - put_packet(gdb_ctx->s, gdb_ctx->str_buf); + put_packet(s, gdb_ctx->str_buf); } =20 #ifdef CONFIG_USER_ONLY static void handle_query_offsets(GdbCmdContext *gdb_ctx, void *user_ctx) { + GDBState *s =3D gdbserver_state; TaskState *ts; =20 - ts =3D gdb_ctx->s->c_cpu->opaque; + ts =3D s->c_cpu->opaque; snprintf(gdb_ctx->str_buf, sizeof(gdb_ctx->str_buf), "Text=3D" TARGET_ABI_FMT_lx ";Data=3D" TARGET_ABI_FMT_lx ";Bss=3D" TARGET_ABI_FMT_lx, ts->info->code_offset, ts->info->data_offset, ts->info->data_offset); - put_packet(gdb_ctx->s, gdb_ctx->str_buf); + put_packet(s, gdb_ctx->str_buf); } #else static void handle_query_rcmd(GdbCmdContext *gdb_ctx, void *user_ctx) { + GDBState *s =3D gdbserver_state; int len; =20 if (!gdb_ctx->num_params) { - put_packet(gdb_ctx->s, "E22"); + put_packet(s, "E22"); return; } =20 len =3D strlen(gdb_ctx->params[0].data); if (len % 2) { - put_packet(gdb_ctx->s, "E01"); + put_packet(s, "E01"); return; } =20 len =3D len / 2; hextomem(gdb_ctx->mem_buf, gdb_ctx->params[0].data, len); gdb_ctx->mem_buf[len++] =3D 0; - qemu_chr_be_write(gdb_ctx->s->mon_chr, gdb_ctx->mem_buf, len); - put_packet(gdb_ctx->s, "OK"); + qemu_chr_be_write(s->mon_chr, gdb_ctx->mem_buf, len); + put_packet(s, "OK"); =20 } #endif =20 static void handle_query_supported(GdbCmdContext *gdb_ctx, void *user_ctx) { + GDBState *s =3D gdbserver_state; CPUClass *cc; =20 snprintf(gdb_ctx->str_buf, sizeof(gdb_ctx->str_buf), "PacketSize=3D%x", @@ -2115,15 +2153,16 @@ static void handle_query_supported(GdbCmdContext *g= db_ctx, void *user_ctx) =20 if (gdb_ctx->num_params && strstr(gdb_ctx->params[0].data, "multiprocess+")) { - gdb_ctx->s->multiprocess =3D true; + s->multiprocess =3D true; } =20 pstrcat(gdb_ctx->str_buf, sizeof(gdb_ctx->str_buf), ";multiprocess+"); - put_packet(gdb_ctx->s, gdb_ctx->str_buf); + put_packet(s, gdb_ctx->str_buf); } =20 static void handle_query_xfer_features(GdbCmdContext *gdb_ctx, void *user_= ctx) { + GDBState *s =3D gdbserver_state; GDBProcess *process; CPUClass *cc; unsigned long len, total_len, addr; @@ -2131,22 +2170,22 @@ static void handle_query_xfer_features(GdbCmdContex= t *gdb_ctx, void *user_ctx) const char *p; =20 if (gdb_ctx->num_params < 3) { - put_packet(gdb_ctx->s, "E22"); + put_packet(s, "E22"); return; } =20 - process =3D gdb_get_cpu_process(gdb_ctx->s, gdb_ctx->s->g_cpu); - cc =3D CPU_GET_CLASS(gdb_ctx->s->g_cpu); + process =3D gdb_get_cpu_process(s, s->g_cpu); + cc =3D CPU_GET_CLASS(s->g_cpu); if (!cc->gdb_core_xml_file) { - put_packet(gdb_ctx->s, ""); + put_packet(s, ""); return; } =20 gdb_has_xml =3D true; p =3D gdb_ctx->params[0].data; - xml =3D get_feature_xml(gdb_ctx->s, p, &p, process); + xml =3D get_feature_xml(s, p, &p, process); if (!xml) { - put_packet(gdb_ctx->s, "E00"); + put_packet(s, "E00"); return; } =20 @@ -2154,7 +2193,7 @@ static void handle_query_xfer_features(GdbCmdContext = *gdb_ctx, void *user_ctx) len =3D gdb_ctx->params[2].val_ul; total_len =3D strlen(xml); if (addr > total_len) { - put_packet(gdb_ctx->s, "E00"); + put_packet(s, "E00"); return; } =20 @@ -2170,35 +2209,39 @@ static void handle_query_xfer_features(GdbCmdContex= t *gdb_ctx, void *user_ctx) len =3D memtox(gdb_ctx->str_buf + 1, xml + addr, total_len - addr); } =20 - put_packet_binary(gdb_ctx->s, gdb_ctx->str_buf, len + 1, true); + put_packet_binary(s, gdb_ctx->str_buf, len + 1, true); } =20 static void handle_query_attached(GdbCmdContext *gdb_ctx, void *user_ctx) { - put_packet(gdb_ctx->s, GDB_ATTACHED); + GDBState *s =3D gdbserver_state; + put_packet(s, GDB_ATTACHED); } =20 static void handle_query_qemu_supported(GdbCmdContext *gdb_ctx, void *user= _ctx) { + GDBState *s =3D gdbserver_state; snprintf(gdb_ctx->str_buf, sizeof(gdb_ctx->str_buf), "sstepbits;sstep"= ); #ifndef CONFIG_USER_ONLY pstrcat(gdb_ctx->str_buf, sizeof(gdb_ctx->str_buf), ";PhyMemMode"); #endif - put_packet(gdb_ctx->s, gdb_ctx->str_buf); + put_packet(s, gdb_ctx->str_buf); } =20 #ifndef CONFIG_USER_ONLY static void handle_query_qemu_phy_mem_mode(GdbCmdContext *gdb_ctx, void *user_ctx) { + GDBState *s =3D gdbserver_state; snprintf(gdb_ctx->str_buf, sizeof(gdb_ctx->str_buf), "%d", phy_memory_= mode); - put_packet(gdb_ctx->s, gdb_ctx->str_buf); + put_packet(s, gdb_ctx->str_buf); } =20 static void handle_set_qemu_phy_mem_mode(GdbCmdContext *gdb_ctx, void *use= r_ctx) { + GDBState *s =3D gdbserver_state; if (!gdb_ctx->num_params) { - put_packet(gdb_ctx->s, "E22"); + put_packet(s, "E22"); return; } =20 @@ -2207,7 +2250,7 @@ static void handle_set_qemu_phy_mem_mode(GdbCmdContex= t *gdb_ctx, void *user_ctx) } else { phy_memory_mode =3D 1; } - put_packet(gdb_ctx->s, "OK"); + put_packet(s, "OK"); } #endif =20 @@ -2319,51 +2362,56 @@ static GdbCmdParseEntry gdb_gen_set_table[] =3D { =20 static void handle_gen_query(GdbCmdContext *gdb_ctx, void *user_ctx) { + GDBState *s =3D gdbserver_state; + if (!gdb_ctx->num_params) { return; } =20 - if (!process_string_cmd(gdb_ctx->s, NULL, gdb_ctx->params[0].data, + if (!process_string_cmd(s, NULL, gdb_ctx->params[0].data, gdb_gen_query_set_common_table, ARRAY_SIZE(gdb_gen_query_set_common_table))) { return; } =20 - if (process_string_cmd(gdb_ctx->s, NULL, gdb_ctx->params[0].data, + if (process_string_cmd(s, NULL, gdb_ctx->params[0].data, gdb_gen_query_table, ARRAY_SIZE(gdb_gen_query_table))) { - put_packet(gdb_ctx->s, ""); + put_packet(s, ""); } } =20 static void handle_gen_set(GdbCmdContext *gdb_ctx, void *user_ctx) { + GDBState *s =3D gdbserver_state; + if (!gdb_ctx->num_params) { return; } =20 - if (!process_string_cmd(gdb_ctx->s, NULL, gdb_ctx->params[0].data, + if (!process_string_cmd(s, NULL, gdb_ctx->params[0].data, gdb_gen_query_set_common_table, ARRAY_SIZE(gdb_gen_query_set_common_table))) { return; } =20 - if (process_string_cmd(gdb_ctx->s, NULL, gdb_ctx->params[0].data, + if (process_string_cmd(s, NULL, gdb_ctx->params[0].data, gdb_gen_set_table, ARRAY_SIZE(gdb_gen_set_table))) { - put_packet(gdb_ctx->s, ""); + put_packet(s, ""); } } =20 static void handle_target_halt(GdbCmdContext *gdb_ctx, void *user_ctx) { + GDBState *s =3D gdbserver_state; char thread_id[16]; =20 - gdb_fmt_thread_id(gdb_ctx->s, gdb_ctx->s->c_cpu, thread_id, + gdb_fmt_thread_id(s, s->c_cpu, thread_id, sizeof(thread_id)); snprintf(gdb_ctx->str_buf, sizeof(gdb_ctx->str_buf), "T%02xthread:%s;", GDB_SIGNAL_TRAP, thread_id); - put_packet(gdb_ctx->s, gdb_ctx->str_buf); + put_packet(s, gdb_ctx->str_buf); /* * Remove all the breakpoints when this query is issued, * because gdb is doing an initial connect and the state @@ -3052,10 +3100,9 @@ gdb_handlesig(CPUState *cpu, int sig) /* Tell the remote gdb that the process has exited due to SIG. */ void gdb_signalled(CPUArchState *env, int sig) { - GDBState *s; + GDBState *s =3D gdbserver_state; char buf[4]; =20 - s =3D gdbserver_state; if (gdbserver_fd < 0 || s->fd < 0) { return; } --=20 2.20.1