[Qemu-devel] [PATCH v10 07/20] gdbstub: Implement breakpoint commands (Z/z pkt) with new infra

[Jon Doron <arilou@gmail.com>]

Signed-off-by: Jon Doron <arilou@gmail.com>
---
 gdbstub.c | 84 +++++++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 66 insertions(+), 18 deletions(-)

diff --git a/gdbstub.c b/gdbstub.c
index 129a47230f..c59a6765cd 100644
--- a/gdbstub.c
+++ b/gdbstub.c
@@ -950,7 +950,7 @@ static inline int xlat_gdb_type(CPUState *cpu, int gdbtype)
 }
 #endif
 
-static int gdb_breakpoint_insert(target_ulong addr, target_ulong len, int type)
+static int gdb_breakpoint_insert(int type, target_ulong addr, target_ulong len)
 {
     CPUState *cpu;
     int err = 0;
@@ -1591,6 +1591,52 @@ 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) {
+        put_packet(gdb_ctx->s, "E22");
+        return;
+    }
+
+    res = gdb_breakpoint_insert(gdb_ctx->params[0].val_ul,
+                                gdb_ctx->params[1].val_ull,
+                                gdb_ctx->params[2].val_ull);
+    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 void handle_remove_bp(GdbCmdContext *gdb_ctx, void *user_ctx)
+{
+    int res;
+
+    if (gdb_ctx->num_params != 3) {
+        put_packet(gdb_ctx->s, "E22");
+        return;
+    }
+
+    res = gdb_breakpoint_remove(gdb_ctx->params[0].val_ul,
+                                gdb_ctx->params[1].val_ull,
+                                gdb_ctx->params[2].val_ull);
+    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;
@@ -1846,24 +1892,26 @@ 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 == ',')
-            p++;
-        addr = strtoull(p, (char **)&p, 16);
-        if (*p == ',')
-            p++;
-        len = strtoull(p, (char **)&p, 16);
-        if (ch == 'Z')
-            res = gdb_breakpoint_insert(addr, len, type);
-        else
-            res = gdb_breakpoint_remove(addr, len, type);
-        if (res >= 0)
-             put_packet(s, "OK");
-        else if (res == -ENOSYS)
-            put_packet(s, "");
-        else
-            put_packet(s, "E22");
+        {
+            static const GdbCmdParseEntry remove_bp_cmd_desc = {
+                .handler = handle_remove_bp,
+                .cmd = "z",
+                .cmd_startswith = 1,
+                .schema = "l?L?L0"
+            };
+            cmd_parser = &remove_bp_cmd_desc;
+        }
         break;
     case 'H':
         {
-- 
2.21.0