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Re: [Qemu-devel] [PATCH v9 07/27] gdbstub: Implement insert breakpoint (
From: |
Alex Bennée |
Subject: |
Re: [Qemu-devel] [PATCH v9 07/27] gdbstub: Implement insert breakpoint (Z pkt) with new infra |
Date: |
Wed, 15 May 2019 11:26:02 +0100 |
User-agent: |
mu4e 1.3.1; emacs 26.1 |
Jon Doron <address@hidden> writes:
> Signed-off-by: Jon Doron <address@hidden>
> ---
> gdbstub.c | 33 +++++++++++++++++++++++++++++++++
> 1 file changed, 33 insertions(+)
>
> diff --git a/gdbstub.c b/gdbstub.c
> index 21cdaf4678..36c7353a22 100644
> --- a/gdbstub.c
> +++ b/gdbstub.c
> @@ -1588,6 +1588,29 @@ static void handle_set_thread(GdbCmdContext *gdb_ctx,
> void *user_ctx)
> }
> }
>
> +static void handle_insert_bp(GdbCmdContext *gdb_ctx, void *user_ctx)
> +{
> + int res;
> +
> + if (gdb_ctx->num_params < 3) {
!= 3?
> + put_packet(gdb_ctx->s, "E22");
> + return;
> + }
> +
> + res = gdb_breakpoint_insert(gdb_ctx->params[1].val_ull,
> + gdb_ctx->params[2].val_ull,
> + gdb_ctx->params[0].val_ul);
I would be tempted to fix the prototype of gdb_breakpoint_insert to
match the order of the packet parameters for cleanliness.
> + if (res >= 0) {
> + put_packet(gdb_ctx->s, "OK");
> + return;
> + } else if (res == -ENOSYS) {
> + put_packet(gdb_ctx->s, "");
> + return;
> + }
> +
> + put_packet(gdb_ctx->s, "E22");
> +}
> +
> static int gdb_handle_packet(GDBState *s, const char *line_buf)
> {
> CPUState *cpu;
> @@ -1843,6 +1866,16 @@ static int gdb_handle_packet(GDBState *s, const char
> *line_buf)
> put_packet(s, "OK");
> break;
> case 'Z':
> + {
> + static const GdbCmdParseEntry insert_bp_cmd_desc = {
> + .handler = handle_insert_bp,
> + .cmd = "Z",
> + .cmd_startswith = 1,
> + .schema = "l?L?L0"
> + };
> + cmd_parser = &insert_bp_cmd_desc;
> + }
> + break;
> case 'z':
> type = strtoul(p, (char **)&p, 16);
> if (*p == ',')
You should also delete the:
if (ch == 'Z')
res = gdb_breakpoint_insert(addr, len, type);
case.
In fact I think there is probably a good case just to merge with the
next patch as the two functions are very much related.
--
Alex Bennée
- Re: [Qemu-devel] [PATCH v9 09/27] gdbstub: Implement set register (P pkt) with new infra, (continued)
- [Qemu-devel] [PATCH v9 17/27] gdbstub: Implement v commands with new infra, Jon Doron, 2019/05/02
- [Qemu-devel] [PATCH v9 06/27] gdbstub: Implement set_thread (H pkt) with new infra, Jon Doron, 2019/05/02
- [Qemu-devel] [PATCH v9 22/27] gdbstub: Implement generic query qemu.Supported, Jon Doron, 2019/05/02
- [Qemu-devel] [PATCH v9 07/27] gdbstub: Implement insert breakpoint (Z pkt) with new infra, Jon Doron, 2019/05/02
- Re: [Qemu-devel] [PATCH v9 07/27] gdbstub: Implement insert breakpoint (Z pkt) with new infra,
Alex Bennée <=
- [Qemu-devel] [PATCH v9 20/27] gdbstub: Implement target halted (? pkt) with new infra, Jon Doron, 2019/05/02
- [Qemu-devel] [PATCH v9 12/27] gdbstub: Implement read memory (m pkt) with new infra, Jon Doron, 2019/05/02
- [Qemu-devel] [PATCH v9 16/27] gdbstub: Implement step (s pkt) with new infra, Jon Doron, 2019/05/02
- [Qemu-devel] [PATCH v9 08/27] gdbstub: Implement remove breakpoint (z pkt) with new infra, Jon Doron, 2019/05/02