Add qemu 2.4.0

[kvmfornfv.git] / qemu / target-sparc / gdbstub.c

diff --git a/qemu/target-sparc/gdbstub.c b/qemu/target-sparc/gdbstub.c
new file mode 100644 (file)
index 0000000..3de3242
--- /dev/null
+++ b/qemu/target-sparc/gdbstub.c
@@ -0,0 +1,208 @@
+/*
+ * SPARC gdb server stub
+ *
+ * Copyright (c) 2003-2005 Fabrice Bellard
+ * Copyright (c) 2013 SUSE LINUX Products GmbH
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+#include "config.h"
+#include "qemu-common.h"
+#include "exec/gdbstub.h"
+
+#ifdef TARGET_ABI32
+#define gdb_get_rega(buf, val) gdb_get_reg32(buf, val)
+#else
+#define gdb_get_rega(buf, val) gdb_get_regl(buf, val)
+#endif
+
+int sparc_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n)
+{
+    SPARCCPU *cpu = SPARC_CPU(cs);
+    CPUSPARCState *env = &cpu->env;
+
+    if (n < 8) {
+        /* g0..g7 */
+        return gdb_get_rega(mem_buf, env->gregs[n]);
+    }
+    if (n < 32) {
+        /* register window */
+        return gdb_get_rega(mem_buf, env->regwptr[n - 8]);
+    }
+#if defined(TARGET_ABI32) || !defined(TARGET_SPARC64)
+    if (n < 64) {
+        /* fprs */
+        if (n & 1) {
+            return gdb_get_reg32(mem_buf, env->fpr[(n - 32) / 2].l.lower);
+        } else {
+            return gdb_get_reg32(mem_buf, env->fpr[(n - 32) / 2].l.upper);
+        }
+    }
+    /* Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR */
+    switch (n) {
+    case 64:
+        return gdb_get_rega(mem_buf, env->y);
+    case 65:
+        return gdb_get_rega(mem_buf, cpu_get_psr(env));
+    case 66:
+        return gdb_get_rega(mem_buf, env->wim);
+    case 67:
+        return gdb_get_rega(mem_buf, env->tbr);
+    case 68:
+        return gdb_get_rega(mem_buf, env->pc);
+    case 69:
+        return gdb_get_rega(mem_buf, env->npc);
+    case 70:
+        return gdb_get_rega(mem_buf, env->fsr);
+    case 71:
+        return gdb_get_rega(mem_buf, 0); /* csr */
+    default:
+        return gdb_get_rega(mem_buf, 0);
+    }
+#else
+    if (n < 64) {
+        /* f0-f31 */
+        if (n & 1) {
+            return gdb_get_reg32(mem_buf, env->fpr[(n - 32) / 2].l.lower);
+        } else {
+            return gdb_get_reg32(mem_buf, env->fpr[(n - 32) / 2].l.upper);
+        }
+    }
+    if (n < 80) {
+        /* f32-f62 (double width, even numbers only) */
+        return gdb_get_reg64(mem_buf, env->fpr[(n - 32) / 2].ll);
+    }
+    switch (n) {
+    case 80:
+        return gdb_get_regl(mem_buf, env->pc);
+    case 81:
+        return gdb_get_regl(mem_buf, env->npc);
+    case 82:
+        return gdb_get_regl(mem_buf, (cpu_get_ccr(env) << 32) |
+                                     ((env->asi & 0xff) << 24) |
+                                     ((env->pstate & 0xfff) << 8) |
+                                     cpu_get_cwp64(env));
+    case 83:
+        return gdb_get_regl(mem_buf, env->fsr);
+    case 84:
+        return gdb_get_regl(mem_buf, env->fprs);
+    case 85:
+        return gdb_get_regl(mem_buf, env->y);
+    }
+#endif
+    return 0;
+}
+
+int sparc_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
+{
+    SPARCCPU *cpu = SPARC_CPU(cs);
+    CPUSPARCState *env = &cpu->env;
+#if defined(TARGET_ABI32)
+    abi_ulong tmp;
+
+    tmp = ldl_p(mem_buf);
+#else
+    target_ulong tmp;
+
+    tmp = ldtul_p(mem_buf);
+#endif
+
+    if (n < 8) {
+        /* g0..g7 */
+        env->gregs[n] = tmp;
+    } else if (n < 32) {
+        /* register window */
+        env->regwptr[n - 8] = tmp;
+    }
+#if defined(TARGET_ABI32) || !defined(TARGET_SPARC64)
+    else if (n < 64) {
+        /* fprs */
+        /* f0-f31 */
+        if (n & 1) {
+            env->fpr[(n - 32) / 2].l.lower = tmp;
+        } else {
+            env->fpr[(n - 32) / 2].l.upper = tmp;
+        }
+    } else {
+        /* Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR */
+        switch (n) {
+        case 64:
+            env->y = tmp;
+            break;
+        case 65:
+            cpu_put_psr(env, tmp);
+            break;
+        case 66:
+            env->wim = tmp;
+            break;
+        case 67:
+            env->tbr = tmp;
+            break;
+        case 68:
+            env->pc = tmp;
+            break;
+        case 69:
+            env->npc = tmp;
+            break;
+        case 70:
+            env->fsr = tmp;
+            break;
+        default:
+            return 0;
+        }
+    }
+    return 4;
+#else
+    else if (n < 64) {
+        /* f0-f31 */
+        tmp = ldl_p(mem_buf);
+        if (n & 1) {
+            env->fpr[(n - 32) / 2].l.lower = tmp;
+        } else {
+            env->fpr[(n - 32) / 2].l.upper = tmp;
+        }
+        return 4;
+    } else if (n < 80) {
+        /* f32-f62 (double width, even numbers only) */
+        env->fpr[(n - 32) / 2].ll = tmp;
+    } else {
+        switch (n) {
+        case 80:
+            env->pc = tmp;
+            break;
+        case 81:
+            env->npc = tmp;
+            break;
+        case 82:
+            cpu_put_ccr(env, tmp >> 32);
+            env->asi = (tmp >> 24) & 0xff;
+            env->pstate = (tmp >> 8) & 0xfff;
+            cpu_put_cwp64(env, tmp & 0xff);
+            break;
+        case 83:
+            env->fsr = tmp;
+            break;
+        case 84:
+            env->fprs = tmp;
+            break;
+        case 85:
+            env->y = tmp;
+            break;
+        default:
+            return 0;
+        }
+    }
+    return 8;
+#endif
+}