From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33401) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e4RdW-0003gX-PX for qemu-devel@nongnu.org; Tue, 17 Oct 2017 09:10:27 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1e4RdP-0005Hm-TI for qemu-devel@nongnu.org; Tue, 17 Oct 2017 09:10:20 -0400 Received: from mail.ispras.ru ([83.149.199.45]:56744) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e4RdP-0005Eu-0E for qemu-devel@nongnu.org; Tue, 17 Oct 2017 09:10:15 -0400 From: Mihail Abakumov Date: Tue, 17 Oct 2017 16:10:09 +0300 Message-ID: <150824580953.6816.17308668705388913065.stgit@Misha-PC.lan02.inno> In-Reply-To: <150824572545.6816.5099701189660002212.stgit@Misha-PC.lan02.inno> References: <150824572545.6816.5099701189660002212.stgit@Misha-PC.lan02.inno> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Subject: [Qemu-devel] [PATCH v2 14/43] windbg: init DBGKD_ANY_WAIT_STATE_CHANGE List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: sw@weilnetz.de, lprosek@redhat.com, dovgaluk@ispras.ru, rkagan@virtuozzo.com, pbonzini@redhat.com, den@openvz.org Added function for init DBGKD_ANY_WAIT_STATE_CHANGE. It is a header of 'state change' packets. Signed-off-by: Mihail Abakumov Signed-off-by: Pavel Dovgalyuk Signed-off-by: Dmitriy Koltunov --- include/exec/windbgstub-utils.h | 8 ++++++ target/i386/windbgstub.c | 49 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 57 insertions(+) diff --git a/include/exec/windbgstub-utils.h b/include/exec/windbgstub-utils.h index d6abb82dfa..5aa54550cd 100755 --- a/include/exec/windbgstub-utils.h +++ b/include/exec/windbgstub-utils.h @@ -50,6 +50,14 @@ _t; \ }) +#if TARGET_LONG_BITS == 64 +# define sttul_p(p, v) stq_p(p, v) +# define ldtul_p(p) ldq_p(p) +#else +# define sttul_p(p, v) stl_p(p, v) +# define ldtul_p(p) ldl_p(p) +#endif + typedef struct InitedAddr { target_ulong addr; bool is_init; diff --git a/target/i386/windbgstub.c b/target/i386/windbgstub.c index 83e80bdfc8..da0aeb4f1b 100755 --- a/target/i386/windbgstub.c +++ b/target/i386/windbgstub.c @@ -15,9 +15,13 @@ #ifdef TARGET_X86_64 # define OFFSET_SELF_PCR 0x18 # define OFFSET_VERS 0x108 +# define OFFSET_KPRCB 0x20 +# define OFFSET_KPRCB_CURRTHREAD 0x8 #else # define OFFSET_SELF_PCR 0x1C # define OFFSET_VERS 0x34 +# define OFFSET_KPRCB 0x20 +# define OFFSET_KPRCB_CURRTHREAD 0x4 #endif bool windbg_on_load(void) @@ -63,3 +67,48 @@ bool windbg_on_load(void) return true; } + +__attribute__ ((unused)) /* unused yet */ +static void kd_init_state_change(CPUState *cpu, + DBGKD_ANY_WAIT_STATE_CHANGE *sc) +{ + CPUArchState *env = cpu->env_ptr; + DBGKD_CONTROL_REPORT *cr = &sc->ControlReport; + InitedAddr *KPCR = windbg_get_KPCR(); + target_ulong KPRCB; + int err = 0; + + /* T0D0: HEADER */ + + sc->Processor = 0; + + sc->NumberProcessors = 0; + CPUState *cpu_tmp; + CPU_FOREACH(cpu_tmp) { + sc->NumberProcessors++; + } + stl_p(&sc->NumberProcessors, sc->NumberProcessors); + + KPRCB = READ_VMEM(cpu, KPCR->addr + OFFSET_KPRCB, target_ulong); + sc->Thread = READ_VMEM(cpu, KPRCB + OFFSET_KPRCB_CURRTHREAD, target_ulong); + sttul_p(&sc->Thread, sc->Thread); + sttul_p(&sc->ProgramCounter, env->eip); + + /* T0D0: CONTROL REPORT */ + + sttul_p(&cr->Dr6, env->dr[6]); + sttul_p(&cr->Dr7, env->dr[7]); + stw_p(&cr->ReportFlags, REPORT_INCLUDES_SEGS | REPORT_STANDARD_CS); + stw_p(&cr->SegCs, env->segs[R_CS].selector); + stw_p(&cr->SegDs, env->segs[R_DS].selector); + stw_p(&cr->SegEs, env->segs[R_ES].selector); + stw_p(&cr->SegFs, env->segs[R_FS].selector); + stl_p(&cr->EFlags, env->eflags); + + err = cpu_memory_rw_debug(cpu, sc->ProgramCounter, + PTR(cr->InstructionStream[0]), + DBGKD_MAXSTREAM, 0); + if (!err) { + stw_p(&cr->InstructionCount, DBGKD_MAXSTREAM); + } +}