[Pdbg] [PATCH v2 28/39] gdbproxy: implement get_thread / set_thread commands
Joel Stanley
joel at jms.id.au
Tue May 3 17:29:56 AEST 2022
On Wed, 20 Apr 2022 at 06:51, Nicholas Piggin <npiggin at gmail.com> wrote:
>
> Using the PIR for a thread identifier, implement get_thread
> and set_thread gdb commands.
>
> Signed-off-by: Nicholas Piggin <npiggin at gmail.com>
Reviewed-by: Joel Stanley <joel at jms.id.au>
> ---
> src/gdb_parser.rl | 8 +-
> src/gdb_parser_precompile.c | 301 +++++++++++++++++++-----------------
> src/pdbgproxy.c | 36 ++++-
> src/pdbgproxy.h | 2 +-
> 4 files changed, 199 insertions(+), 148 deletions(-)
>
> diff --git a/src/gdb_parser.rl b/src/gdb_parser.rl
> index e49d56d3..dc1275c3 100644
> --- a/src/gdb_parser.rl
> +++ b/src/gdb_parser.rl
> @@ -106,8 +106,6 @@
>
> stop_reason = ('?' @{cmd = STOP_REASON;});
>
> - set_thread = ('H' any* @{cmd = SET_THREAD;});
> -
> detach = ('D' @{cmd = DETACH;}
> xdigit+ $hex_digit %push);
>
> @@ -118,6 +116,10 @@
> qf_threadinfo = ('qfThreadInfo' @{rsp = "m1l";});
> q_start_noack = ('QStartNoAckMode' @{rsp = "OK"; send_ack(priv); ack_mode = false;});
>
> + # thread info
> + get_thread = ('qC' @{cmd = GET_THREAD;});
> + set_thread = ('Hg' ('p' xdigit+ '.')+ xdigit+ $hex_digit %push @{cmd = SET_THREAD;});
> +
> # vCont packet parsing
> v_contq = ('vCont?' @{rsp = "vCont;c;C;s;S";});
> v_contc = ('vCont;c' any* @{cmd = V_CONTC;});
> @@ -126,7 +128,7 @@
>
> interrupt = (3 @{ if (command_callbacks) command_callbacks[INTERRUPT](stack, priv); PR_INFO("RAGEL:interrupt\n");});
>
> - commands = (get_mem | get_gprs | get_spr | stop_reason | set_thread |
> + commands = (get_mem | get_gprs | get_spr | stop_reason | get_thread | set_thread |
> q_attached | q_C | q_supported | qf_threadinfo | q_C |
> q_start_noack | v_contq | v_contc | v_conts | put_mem |
> detach | unknown );
> diff --git a/src/gdb_parser_precompile.c b/src/gdb_parser_precompile.c
> index db982092..567f1dd6 100644
> --- a/src/gdb_parser_precompile.c
> +++ b/src/gdb_parser_precompile.c
> @@ -11,7 +11,7 @@
> #include "debug.h"
>
>
> -#line 143 "src/gdb_parser.rl"
> +#line 145 "src/gdb_parser.rl"
>
>
> static enum gdb_command cmd = NONE;
> @@ -31,29 +31,30 @@ static bool ack_mode = true;
> #line 32 "src/gdb_parser_precompile.c"
> static const char _gdb_actions[] = {
> 0, 1, 0, 1, 1, 1, 2, 1,
> - 3, 1, 16, 1, 22, 1, 23, 1,
> - 24, 1, 25, 2, 0, 1, 2, 2,
> + 3, 1, 15, 1, 23, 1, 24, 1,
> + 25, 1, 26, 2, 0, 1, 2, 2,
> 1, 2, 3, 1, 2, 3, 5, 2,
> - 4, 1, 2, 12, 1, 2, 14, 1,
> - 2, 15, 1, 2, 16, 1, 2, 17,
> - 1, 2, 18, 1, 2, 19, 1, 2,
> - 20, 1, 2, 21, 1, 3, 0, 6,
> - 1, 3, 0, 7, 1, 3, 0, 9,
> - 1, 3, 0, 10, 1, 3, 0, 11,
> - 1, 3, 0, 13, 1, 3, 2, 8,
> - 1
> + 4, 1, 2, 13, 1, 2, 15, 1,
> + 2, 16, 1, 2, 17, 1, 2, 20,
> + 1, 2, 21, 1, 2, 22, 1, 3,
> + 0, 6, 1, 3, 0, 7, 1, 3,
> + 0, 9, 1, 3, 0, 10, 1, 3,
> + 0, 11, 1, 3, 0, 12, 1, 3,
> + 2, 8, 1, 3, 3, 19, 1, 3,
> + 18, 14, 1
> };
>
> static const unsigned char _gdb_key_offsets[] = {
> 0, 0, 11, 12, 18, 24, 31, 38,
> - 39, 46, 54, 61, 69, 76, 78, 80,
> - 82, 84, 86, 88, 90, 92, 94, 96,
> - 98, 100, 102, 104, 111, 119, 124, 126,
> - 128, 130, 132, 134, 136, 138, 140, 147,
> - 149, 151, 153, 155, 157, 159, 161, 163,
> - 165, 166, 168, 170, 172, 174, 176, 178,
> - 180, 182, 184, 186, 188, 190, 192, 194,
> - 197, 200, 201, 202
> + 40, 42, 49, 57, 65, 72, 79, 87,
> + 94, 102, 109, 111, 113, 115, 117, 119,
> + 121, 123, 125, 127, 129, 131, 133, 135,
> + 137, 144, 152, 157, 159, 161, 163, 165,
> + 167, 169, 171, 173, 180, 182, 184, 186,
> + 188, 190, 192, 194, 196, 198, 199, 201,
> + 203, 205, 207, 209, 211, 213, 215, 217,
> + 219, 221, 223, 225, 227, 230, 233, 234,
> + 235
> };
>
> static const char _gdb_trans_keys[] = {
> @@ -61,64 +62,71 @@ static const char _gdb_trans_keys[] = {
> 112, 113, 118, 35, 48, 57, 65, 70,
> 97, 102, 48, 57, 65, 70, 97, 102,
> 35, 48, 57, 65, 70, 97, 102, 35,
> - 48, 57, 65, 70, 97, 102, 35, 35,
> - 48, 57, 65, 70, 97, 102, 35, 44,
> - 48, 57, 65, 70, 97, 102, 35, 48,
> - 57, 65, 70, 97, 102, 35, 58, 48,
> - 57, 65, 70, 97, 102, 35, 48, 57,
> - 65, 70, 97, 102, 35, 83, 35, 116,
> - 35, 97, 35, 114, 35, 116, 35, 78,
> - 35, 111, 35, 65, 35, 99, 35, 107,
> - 35, 77, 35, 111, 35, 100, 35, 101,
> + 48, 57, 65, 70, 97, 102, 35, 103,
> + 35, 112, 35, 48, 57, 65, 70, 97,
> + 102, 35, 46, 48, 57, 65, 70, 97,
> + 102, 35, 112, 48, 57, 65, 70, 97,
> + 102, 35, 48, 57, 65, 70, 97, 102,
> 35, 48, 57, 65, 70, 97, 102, 35,
> 44, 48, 57, 65, 70, 97, 102, 35,
> - 65, 67, 83, 102, 35, 116, 35, 116,
> - 35, 97, 35, 99, 35, 104, 35, 101,
> - 35, 100, 35, 58, 35, 48, 57, 65,
> - 70, 97, 102, 35, 117, 35, 112, 35,
> - 112, 35, 111, 35, 114, 35, 116, 35,
> - 101, 35, 100, 35, 58, 35, 35, 84,
> - 35, 104, 35, 114, 35, 101, 35, 97,
> - 35, 100, 35, 73, 35, 110, 35, 102,
> - 35, 111, 35, 67, 35, 111, 35, 110,
> - 35, 116, 35, 59, 63, 35, 99, 115,
> - 35, 35, 3, 36, 43, 45, 0
> + 48, 57, 65, 70, 97, 102, 35, 58,
> + 48, 57, 65, 70, 97, 102, 35, 48,
> + 57, 65, 70, 97, 102, 35, 83, 35,
> + 116, 35, 97, 35, 114, 35, 116, 35,
> + 78, 35, 111, 35, 65, 35, 99, 35,
> + 107, 35, 77, 35, 111, 35, 100, 35,
> + 101, 35, 48, 57, 65, 70, 97, 102,
> + 35, 44, 48, 57, 65, 70, 97, 102,
> + 35, 65, 67, 83, 102, 35, 116, 35,
> + 116, 35, 97, 35, 99, 35, 104, 35,
> + 101, 35, 100, 35, 58, 35, 48, 57,
> + 65, 70, 97, 102, 35, 117, 35, 112,
> + 35, 112, 35, 111, 35, 114, 35, 116,
> + 35, 101, 35, 100, 35, 58, 35, 35,
> + 84, 35, 104, 35, 114, 35, 101, 35,
> + 97, 35, 100, 35, 73, 35, 110, 35,
> + 102, 35, 111, 35, 67, 35, 111, 35,
> + 110, 35, 116, 35, 59, 63, 35, 99,
> + 115, 35, 35, 3, 36, 43, 45, 0
> };
>
> static const char _gdb_single_lengths[] = {
> - 0, 11, 1, 0, 0, 1, 1, 1,
> - 1, 2, 1, 2, 1, 2, 2, 2,
> + 0, 11, 1, 0, 0, 1, 1, 2,
> + 2, 1, 2, 2, 1, 1, 2, 1,
> + 2, 1, 2, 2, 2, 2, 2, 2,
> 2, 2, 2, 2, 2, 2, 2, 2,
> - 2, 2, 2, 1, 2, 5, 2, 2,
> - 2, 2, 2, 2, 2, 2, 1, 2,
> + 1, 2, 5, 2, 2, 2, 2, 2,
> + 2, 2, 2, 1, 2, 2, 2, 2,
> + 2, 2, 2, 2, 2, 1, 2, 2,
> 2, 2, 2, 2, 2, 2, 2, 2,
> - 1, 2, 2, 2, 2, 2, 2, 2,
> - 2, 2, 2, 2, 2, 2, 2, 3,
> - 3, 1, 1, 4
> + 2, 2, 2, 2, 3, 3, 1, 1,
> + 4
> };
>
> static const char _gdb_range_lengths[] = {
> 0, 0, 0, 3, 3, 3, 3, 0,
> - 3, 3, 3, 3, 3, 0, 0, 0,
> + 0, 3, 3, 3, 3, 3, 3, 3,
> + 3, 3, 0, 0, 0, 0, 0, 0,
> 0, 0, 0, 0, 0, 0, 0, 0,
> - 0, 0, 0, 3, 3, 0, 0, 0,
> - 0, 0, 0, 0, 0, 0, 3, 0,
> + 3, 3, 0, 0, 0, 0, 0, 0,
> + 0, 0, 0, 3, 0, 0, 0, 0,
> 0, 0, 0, 0, 0, 0, 0, 0,
> 0, 0, 0, 0, 0, 0, 0, 0,
> 0, 0, 0, 0, 0, 0, 0, 0,
> - 0, 0, 0, 0
> + 0
> };
>
> static const short _gdb_index_offsets[] = {
> 0, 0, 12, 14, 18, 22, 27, 32,
> - 34, 39, 45, 50, 56, 61, 64, 67,
> - 70, 73, 76, 79, 82, 85, 88, 91,
> - 94, 97, 100, 103, 108, 114, 120, 123,
> - 126, 129, 132, 135, 138, 141, 144, 149,
> - 152, 155, 158, 161, 164, 167, 170, 173,
> - 176, 178, 181, 184, 187, 190, 193, 196,
> - 199, 202, 205, 208, 211, 214, 217, 220,
> - 224, 228, 230, 232
> + 35, 38, 43, 49, 55, 60, 65, 71,
> + 76, 82, 87, 90, 93, 96, 99, 102,
> + 105, 108, 111, 114, 117, 120, 123, 126,
> + 129, 134, 140, 146, 149, 152, 155, 158,
> + 161, 164, 167, 170, 175, 178, 181, 184,
> + 187, 190, 193, 196, 199, 202, 204, 207,
> + 210, 213, 216, 219, 222, 225, 228, 231,
> + 234, 237, 240, 243, 246, 250, 254, 256,
> + 258
> };
>
> static const char _gdb_indicies[] = {
> @@ -126,82 +134,85 @@ static const char _gdb_indicies[] = {
> 9, 10, 11, 0, 13, 12, 14, 14,
> 14, 15, 16, 16, 16, 15, 13, 17,
> 17, 17, 12, 18, 17, 17, 17, 12,
> - 13, 19, 13, 20, 20, 20, 12, 13,
> - 21, 20, 20, 20, 12, 13, 22, 22,
> - 22, 12, 13, 23, 22, 22, 22, 12,
> - 13, 24, 24, 24, 12, 13, 25, 12,
> - 13, 26, 12, 13, 27, 12, 13, 28,
> - 12, 13, 29, 12, 13, 30, 12, 13,
> - 31, 12, 13, 32, 12, 13, 33, 12,
> - 13, 34, 12, 13, 35, 12, 13, 36,
> - 12, 13, 37, 12, 13, 38, 12, 13,
> - 39, 39, 39, 12, 13, 40, 39, 39,
> - 39, 12, 13, 41, 42, 43, 44, 12,
> - 13, 45, 12, 13, 46, 12, 13, 47,
> - 12, 13, 48, 12, 13, 49, 12, 13,
> - 50, 12, 13, 51, 12, 13, 52, 12,
> - 13, 53, 53, 53, 12, 13, 54, 12,
> - 13, 55, 12, 13, 56, 12, 13, 57,
> - 12, 13, 58, 12, 13, 59, 12, 13,
> - 60, 12, 13, 61, 12, 13, 62, 12,
> - 64, 63, 13, 65, 12, 13, 66, 12,
> - 13, 67, 12, 13, 68, 12, 13, 69,
> - 12, 13, 70, 12, 13, 71, 12, 13,
> - 72, 12, 13, 73, 12, 13, 74, 12,
> - 13, 75, 12, 13, 76, 12, 13, 77,
> - 12, 13, 78, 12, 13, 79, 80, 12,
> - 13, 81, 82, 12, 13, 83, 13, 84,
> - 85, 86, 87, 88, 15, 0
> + 13, 19, 12, 13, 20, 12, 13, 21,
> + 21, 21, 12, 13, 22, 21, 21, 21,
> + 12, 13, 20, 23, 23, 23, 12, 18,
> + 23, 23, 23, 12, 13, 24, 24, 24,
> + 12, 13, 25, 24, 24, 24, 12, 13,
> + 26, 26, 26, 12, 13, 27, 26, 26,
> + 26, 12, 13, 28, 28, 28, 12, 13,
> + 29, 12, 13, 30, 12, 13, 31, 12,
> + 13, 32, 12, 13, 33, 12, 13, 34,
> + 12, 13, 35, 12, 13, 36, 12, 13,
> + 37, 12, 13, 38, 12, 13, 39, 12,
> + 13, 40, 12, 13, 41, 12, 13, 42,
> + 12, 13, 43, 43, 43, 12, 13, 44,
> + 43, 43, 43, 12, 13, 45, 46, 47,
> + 48, 12, 13, 49, 12, 13, 50, 12,
> + 13, 51, 12, 13, 52, 12, 13, 53,
> + 12, 13, 54, 12, 13, 55, 12, 13,
> + 56, 12, 13, 57, 57, 57, 12, 13,
> + 58, 12, 13, 59, 12, 13, 60, 12,
> + 13, 61, 12, 13, 62, 12, 13, 63,
> + 12, 13, 64, 12, 13, 65, 12, 13,
> + 66, 12, 68, 67, 13, 69, 12, 13,
> + 70, 12, 13, 71, 12, 13, 72, 12,
> + 13, 73, 12, 13, 74, 12, 13, 75,
> + 12, 13, 76, 12, 13, 77, 12, 13,
> + 78, 12, 13, 79, 12, 13, 80, 12,
> + 13, 81, 12, 13, 82, 12, 13, 83,
> + 84, 12, 13, 85, 86, 12, 13, 87,
> + 13, 88, 89, 90, 91, 92, 15, 0
> };
>
> static const char _gdb_trans_targs[] = {
> - 2, 3, 2, 5, 7, 8, 13, 2,
> - 27, 5, 29, 59, 2, 3, 4, 0,
> - 67, 6, 3, 7, 9, 10, 11, 12,
> - 12, 14, 15, 16, 17, 18, 19, 20,
> - 21, 22, 23, 24, 25, 26, 2, 28,
> - 5, 30, 2, 39, 49, 31, 32, 33,
> - 34, 35, 36, 37, 38, 38, 40, 41,
> - 42, 43, 44, 45, 46, 47, 48, 2,
> - 3, 50, 51, 52, 53, 54, 55, 56,
> - 57, 58, 2, 60, 61, 62, 63, 64,
> - 2, 65, 66, 65, 66, 67, 1, 67,
> - 67
> + 2, 3, 2, 5, 7, 13, 18, 2,
> + 32, 5, 34, 64, 2, 3, 4, 0,
> + 72, 6, 3, 8, 9, 10, 11, 12,
> + 14, 15, 16, 17, 17, 19, 20, 21,
> + 22, 23, 24, 25, 26, 27, 28, 29,
> + 30, 31, 2, 33, 5, 35, 2, 44,
> + 54, 36, 37, 38, 39, 40, 41, 42,
> + 43, 43, 45, 46, 47, 48, 49, 50,
> + 51, 52, 53, 2, 3, 55, 56, 57,
> + 58, 59, 60, 61, 62, 63, 2, 65,
> + 66, 67, 68, 69, 2, 70, 71, 70,
> + 71, 72, 1, 72, 72
> };
>
> static const char _gdb_trans_actions[] = {
> - 19, 1, 77, 81, 19, 65, 19, 69,
> - 61, 73, 19, 19, 3, 0, 7, 0,
> - 28, 25, 5, 34, 25, 22, 25, 85,
> - 31, 3, 3, 3, 3, 3, 3, 3,
> - 3, 3, 3, 3, 3, 3, 49, 25,
> - 22, 3, 40, 3, 3, 3, 3, 3,
> - 3, 3, 3, 3, 3, 37, 3, 3,
> - 3, 3, 3, 3, 3, 3, 3, 43,
> - 9, 3, 3, 3, 3, 3, 3, 3,
> - 3, 3, 46, 3, 3, 3, 3, 3,
> - 52, 3, 3, 55, 58, 11, 13, 15,
> - 17
> + 19, 1, 71, 75, 19, 59, 19, 63,
> + 55, 67, 19, 19, 3, 0, 7, 0,
> + 28, 25, 5, 3, 3, 3, 3, 83,
> + 25, 22, 25, 79, 31, 3, 3, 3,
> + 3, 3, 3, 3, 3, 3, 3, 3,
> + 3, 3, 43, 25, 22, 3, 87, 3,
> + 3, 3, 3, 3, 3, 3, 3, 3,
> + 3, 34, 3, 3, 3, 3, 3, 3,
> + 3, 3, 3, 37, 9, 3, 3, 3,
> + 3, 3, 3, 3, 3, 3, 40, 3,
> + 3, 3, 3, 3, 46, 3, 3, 49,
> + 52, 11, 13, 15, 17
> };
>
> -static const int gdb_start = 67;
> -static const int gdb_first_final = 67;
> +static const int gdb_start = 72;
> +static const int gdb_first_final = 72;
> static const int gdb_error = 0;
>
> -static const int gdb_en_main = 67;
> +static const int gdb_en_main = 72;
>
>
> -#line 159 "src/gdb_parser.rl"
> +#line 161 "src/gdb_parser.rl"
>
> void parser_init(command_cb *callbacks)
> {
>
> -#line 200 "src/gdb_parser_precompile.c"
> +#line 211 "src/gdb_parser_precompile.c"
> {
> cs = gdb_start;
> }
>
> -#line 163 "src/gdb_parser.rl"
> +#line 165 "src/gdb_parser.rl"
>
> command_callbacks = callbacks;
> }
> @@ -212,7 +223,7 @@ int parse_buffer(char *buf, size_t len, void *priv)
> char *pe = p + len;
>
>
> -#line 216 "src/gdb_parser_precompile.c"
> +#line 227 "src/gdb_parser_precompile.c"
> {
> int _klen;
> unsigned int _trans;
> @@ -399,61 +410,65 @@ _match:
> break;
> case 12:
> #line 109 "src/gdb_parser.rl"
> - {cmd = SET_THREAD;}
> + {cmd = DETACH;}
> break;
> case 13:
> -#line 111 "src/gdb_parser.rl"
> - {cmd = DETACH;}
> +#line 113 "src/gdb_parser.rl"
> + {rsp = "1";}
> break;
> case 14:
> -#line 115 "src/gdb_parser.rl"
> - {rsp = "1";}
> +#line 114 "src/gdb_parser.rl"
> + {rsp = "QC1";}
> break;
> case 15:
> -#line 116 "src/gdb_parser.rl"
> - {rsp = "QC1";}
> +#line 115 "src/gdb_parser.rl"
> + {rsp = "multiprocess+;vContSupported+;QStartNoAckMode+"; ack_mode = true;}
> break;
> case 16:
> -#line 117 "src/gdb_parser.rl"
> - {rsp = "multiprocess+;vContSupported+;QStartNoAckMode+"; ack_mode = true;}
> +#line 116 "src/gdb_parser.rl"
> + {rsp = "m1l";}
> break;
> case 17:
> -#line 118 "src/gdb_parser.rl"
> - {rsp = "m1l";}
> +#line 117 "src/gdb_parser.rl"
> + {rsp = "OK"; send_ack(priv); ack_mode = false;}
> break;
> case 18:
> -#line 119 "src/gdb_parser.rl"
> - {rsp = "OK"; send_ack(priv); ack_mode = false;}
> +#line 120 "src/gdb_parser.rl"
> + {cmd = GET_THREAD;}
> break;
> case 19:
> -#line 122 "src/gdb_parser.rl"
> - {rsp = "vCont;c;C;s;S";}
> +#line 121 "src/gdb_parser.rl"
> + {cmd = SET_THREAD;}
> break;
> case 20:
> -#line 123 "src/gdb_parser.rl"
> - {cmd = V_CONTC;}
> +#line 124 "src/gdb_parser.rl"
> + {rsp = "vCont;c;C;s;S";}
> break;
> case 21:
> -#line 124 "src/gdb_parser.rl"
> - {cmd = V_CONTS;}
> +#line 125 "src/gdb_parser.rl"
> + {cmd = V_CONTC;}
> break;
> case 22:
> -#line 127 "src/gdb_parser.rl"
> - { if (command_callbacks) command_callbacks[INTERRUPT](stack, priv); PR_INFO("RAGEL:interrupt\n");}
> +#line 126 "src/gdb_parser.rl"
> + {cmd = V_CONTS;}
> break;
> case 23:
> -#line 135 "src/gdb_parser.rl"
> - {PR_INFO("RAGEL:cmd\n");}
> +#line 129 "src/gdb_parser.rl"
> + { if (command_callbacks) command_callbacks[INTERRUPT](stack, priv); PR_INFO("RAGEL:interrupt\n");}
> break;
> case 24:
> -#line 138 "src/gdb_parser.rl"
> - {PR_INFO("RAGEL:ack\n");}
> +#line 137 "src/gdb_parser.rl"
> + {PR_INFO("RAGEL:cmd\n");}
> break;
> case 25:
> -#line 139 "src/gdb_parser.rl"
> +#line 140 "src/gdb_parser.rl"
> + {PR_INFO("RAGEL:ack\n");}
> + break;
> + case 26:
> +#line 141 "src/gdb_parser.rl"
> {PR_INFO("RAGEL:nack\n");}
> break;
> -#line 457 "src/gdb_parser_precompile.c"
> +#line 472 "src/gdb_parser_precompile.c"
> }
> }
>
> @@ -466,7 +481,7 @@ _again:
> _out: {}
> }
>
> -#line 173 "src/gdb_parser.rl"
> +#line 175 "src/gdb_parser.rl"
>
> if (cs == gdb_error) {
> printf("parse error\n");
> diff --git a/src/pdbgproxy.c b/src/pdbgproxy.c
> index d0da1f37..4f30ede2 100644
> --- a/src/pdbgproxy.c
> +++ b/src/pdbgproxy.c
> @@ -93,9 +93,42 @@ void send_ack(void *priv)
> send(fd, ACK, 1, 0);
> }
>
> +static void get_thread(uint64_t *stack, void *priv)
> +{
> + struct thread *thread = target_to_thread(thread_target);
> + struct gdb_thread *gdb_thread = thread->gdbserver_priv;
> + char data[3+4+2+1]; /* 'QCp' + 4 hex digits + '.0' + NUL */
> +
> + snprintf(data, sizeof(data), "QC%04" PRIx64, gdb_thread->pir);
> +
> + PR_INFO("get_thread pir=%"PRIx64"\n", gdb_thread->pir);
> +
> + send_response(fd, data);
> +}
> +
> static void set_thread(uint64_t *stack, void *priv)
> {
> - send_response(fd, OK);
> + struct pdbg_target *target;
> + uint64_t pir = stack[0];
> +
> + PR_INFO("set_thread pir=%"PRIx64"\n", pir);
> +
> + for_each_path_target_class("thread", target) {
> + struct thread *thread = target_to_thread(target);
> + struct gdb_thread *gdb_thread;
> +
> + if (pdbg_target_status(target) != PDBG_TARGET_ENABLED)
> + continue;
> +
> + gdb_thread = thread->gdbserver_priv;
> +
> + if (gdb_thread->pir == pir) {
> + thread_target = target;
> + send_response(fd, OK);
> + return;
> + }
> + }
> + send_response(fd, ERROR(EEXIST));
> }
>
> static void stop_reason(uint64_t *stack, void *priv)
> @@ -684,6 +717,7 @@ static command_cb callbacks[LAST_CMD + 1] = {
> get_spr,
> get_mem,
> stop_reason,
> + get_thread,
> set_thread,
> v_contc,
> v_conts,
> diff --git a/src/pdbgproxy.h b/src/pdbgproxy.h
> index 1910fdba..2005083d 100644
> --- a/src/pdbgproxy.h
> +++ b/src/pdbgproxy.h
> @@ -2,7 +2,7 @@
> #define __PDBGPROXY_H
>
> enum gdb_command {NONE, GET_GPRS, GET_SPR, GET_MEM,
> - STOP_REASON, SET_THREAD, V_CONTC, V_CONTS,
> + STOP_REASON, GET_THREAD, SET_THREAD, V_CONTC, V_CONTS,
> PUT_MEM, INTERRUPT, DETACH, LAST_CMD};
> typedef void (*command_cb)(uint64_t *stack, void *priv);
>
> --
> 2.35.1
>
> --
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