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[RFC PATCH 11/24] gdbstub: Use GDBFeature for GDBRegisterState


From: Akihiko Odaki
Subject: [RFC PATCH 11/24] gdbstub: Use GDBFeature for GDBRegisterState
Date: Mon, 31 Jul 2023 17:43:38 +0900

Simplify GDBRegisterState by replacing num_regs and xml members with
one member that points to GDBFeature.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
 gdbstub/gdbstub.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/gdbstub/gdbstub.c b/gdbstub/gdbstub.c
index ab75f6686b..182efe7e0f 100644
--- a/gdbstub/gdbstub.c
+++ b/gdbstub/gdbstub.c
@@ -47,10 +47,9 @@
 
 typedef struct GDBRegisterState {
     int base_reg;
-    int num_regs;
     gdb_get_reg_cb get_reg;
     gdb_set_reg_cb set_reg;
-    const char *xml;
+    const GDBFeature *feature;
     struct GDBRegisterState *next;
 } GDBRegisterState;
 
@@ -390,7 +389,7 @@ static const char *get_feature_xml(const char *p, const 
char **newp,
             pstrcat(buf, buf_sz, "\"/>");
             for (r = cpu->gdb_regs; r; r = r->next) {
                 pstrcat(buf, buf_sz, "<xi:include href=\"");
-                pstrcat(buf, buf_sz, r->xml);
+                pstrcat(buf, buf_sz, r->feature->xml);
                 pstrcat(buf, buf_sz, "\"/>");
             }
             pstrcat(buf, buf_sz, "</target>");
@@ -438,7 +437,7 @@ static int gdb_read_register(CPUState *cpu, GByteArray 
*buf, int reg)
     }
 
     for (r = cpu->gdb_regs; r; r = r->next) {
-        if (r->base_reg <= reg && reg < r->base_reg + r->num_regs) {
+        if (r->base_reg <= reg && reg < r->base_reg + r->feature->num_regs) {
             return r->get_reg(env, buf, reg - r->base_reg);
         }
     }
@@ -456,7 +455,7 @@ static int gdb_write_register(CPUState *cpu, uint8_t 
*mem_buf, int reg)
     }
 
     for (r = cpu->gdb_regs; r; r = r->next) {
-        if (r->base_reg <= reg && reg < r->base_reg + r->num_regs) {
+        if (r->base_reg <= reg && reg < r->base_reg + r->feature->num_regs) {
             return r->set_reg(env, mem_buf, reg - r->base_reg);
         }
     }
@@ -479,17 +478,16 @@ void gdb_register_coprocessor(CPUState *cpu,
     p = &cpu->gdb_regs;
     while (*p) {
         /* Check for duplicates.  */
-        if (strcmp((*p)->xml, feature->xmlname) == 0)
+        if ((*p)->feature == feature)
             return;
         p = &(*p)->next;
     }
 
     s = g_new0(GDBRegisterState, 1);
     s->base_reg = cpu->gdb_num_regs;
-    s->num_regs = feature->num_regs;
     s->get_reg = get_reg;
     s->set_reg = set_reg;
-    s->xml = feature->xml;
+    s->feature = feature;
 
     /* Add to end of list.  */
     cpu->gdb_num_regs += feature->num_regs;
-- 
2.41.0




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