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From: "Andreas Färber" <afaerber@suse.de>
To: qemu-devel@nongnu.org
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
	"Andreas Färber" <afaerber@suse.de>,
	"Paul Brook" <paul@codesourcery.com>
Subject: [Qemu-devel] [PULL 11/25] target-arm: Move cpu_gdb_{read, write}_register()
Date: Sat, 27 Jul 2013 00:05:36 +0200	[thread overview]
Message-ID: <1374876350-32189-12-git-send-email-afaerber@suse.de> (raw)
In-Reply-To: <1374876350-32189-1-git-send-email-afaerber@suse.de>

Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 gdbstub.c            | 74 +----------------------------------------
 target-arm/gdbstub.c | 94 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 95 insertions(+), 73 deletions(-)
 create mode 100644 target-arm/gdbstub.c

diff --git a/gdbstub.c b/gdbstub.c
index bf98eb0..73e6411 100644
--- a/gdbstub.c
+++ b/gdbstub.c
@@ -538,81 +538,9 @@ static int put_packet(GDBState *s, const char *buf)
 
 #elif defined (TARGET_ARM)
 
-/* Old gdb always expect FPA registers.  Newer (xml-aware) gdb only expect
-   whatever the target description contains.  Due to a historical mishap
-   the FPA registers appear in between core integer regs and the CPSR.
-   We hack round this by giving the FPA regs zero size when talking to a
-   newer gdb.  */
 #define GDB_CORE_XML "arm-core.xml"
 
-static int cpu_gdb_read_register(CPUARMState *env, uint8_t *mem_buf, int n)
-{
-    if (n < 16) {
-        /* Core integer register.  */
-        GET_REG32(env->regs[n]);
-    }
-    if (n < 24) {
-        /* FPA registers.  */
-        if (gdb_has_xml) {
-            return 0;
-        }
-        memset(mem_buf, 0, 12);
-        return 12;
-    }
-    switch (n) {
-    case 24:
-        /* FPA status register.  */
-        if (gdb_has_xml) {
-            return 0;
-        }
-        GET_REG32(0);
-    case 25:
-        /* CPSR */
-        GET_REG32(cpsr_read(env));
-    }
-    /* Unknown register.  */
-    return 0;
-}
-
-static int cpu_gdb_write_register(CPUARMState *env, uint8_t *mem_buf, int n)
-{
-    uint32_t tmp;
-
-    tmp = ldl_p(mem_buf);
-
-    /* Mask out low bit of PC to workaround gdb bugs.  This will probably
-       cause problems if we ever implement the Jazelle DBX extensions.  */
-    if (n == 15) {
-        tmp &= ~1;
-    }
-
-    if (n < 16) {
-        /* Core integer register.  */
-        env->regs[n] = tmp;
-        return 4;
-    }
-    if (n < 24) { /* 16-23 */
-        /* FPA registers (ignored).  */
-        if (gdb_has_xml) {
-            return 0;
-        }
-        return 12;
-    }
-    switch (n) {
-    case 24:
-        /* FPA status register (ignored).  */
-        if (gdb_has_xml) {
-            return 0;
-        }
-        return 4;
-    case 25:
-        /* CPSR */
-        cpsr_write(env, tmp, 0xffffffff);
-        return 4;
-    }
-    /* Unknown register.  */
-    return 0;
-}
+#include "target-arm/gdbstub.c"
 
 #elif defined (TARGET_M68K)
 
diff --git a/target-arm/gdbstub.c b/target-arm/gdbstub.c
new file mode 100644
index 0000000..74903a3
--- /dev/null
+++ b/target-arm/gdbstub.c
@@ -0,0 +1,94 @@
+/*
+ * ARM 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/>.
+ */
+
+/* Old gdb always expect FPA registers.  Newer (xml-aware) gdb only expect
+   whatever the target description contains.  Due to a historical mishap
+   the FPA registers appear in between core integer regs and the CPSR.
+   We hack round this by giving the FPA regs zero size when talking to a
+   newer gdb.  */
+
+static int cpu_gdb_read_register(CPUARMState *env, uint8_t *mem_buf, int n)
+{
+    if (n < 16) {
+        /* Core integer register.  */
+        GET_REG32(env->regs[n]);
+    }
+    if (n < 24) {
+        /* FPA registers.  */
+        if (gdb_has_xml) {
+            return 0;
+        }
+        memset(mem_buf, 0, 12);
+        return 12;
+    }
+    switch (n) {
+    case 24:
+        /* FPA status register.  */
+        if (gdb_has_xml) {
+            return 0;
+        }
+        GET_REG32(0);
+    case 25:
+        /* CPSR */
+        GET_REG32(cpsr_read(env));
+    }
+    /* Unknown register.  */
+    return 0;
+}
+
+static int cpu_gdb_write_register(CPUARMState *env, uint8_t *mem_buf, int n)
+{
+    uint32_t tmp;
+
+    tmp = ldl_p(mem_buf);
+
+    /* Mask out low bit of PC to workaround gdb bugs.  This will probably
+       cause problems if we ever implement the Jazelle DBX extensions.  */
+    if (n == 15) {
+        tmp &= ~1;
+    }
+
+    if (n < 16) {
+        /* Core integer register.  */
+        env->regs[n] = tmp;
+        return 4;
+    }
+    if (n < 24) { /* 16-23 */
+        /* FPA registers (ignored).  */
+        if (gdb_has_xml) {
+            return 0;
+        }
+        return 12;
+    }
+    switch (n) {
+    case 24:
+        /* FPA status register (ignored).  */
+        if (gdb_has_xml) {
+            return 0;
+        }
+        return 4;
+    case 25:
+        /* CPSR */
+        cpsr_write(env, tmp, 0xffffffff);
+        return 4;
+    }
+    /* Unknown register.  */
+    return 0;
+}
-- 
1.8.1.4

  parent reply	other threads:[~2013-07-26 22:06 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-26 22:05 [Qemu-devel] [PULL 00/25] QOM CPUState patch queue 2013-07-26 Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 01/25] linux-user: Avoid redundant ENV_GET_CPU() Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 02/25] kvm: Change prototype of kvm_update_guest_debug() Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 03/25] target-s390x: Fix CPUState rework fallout Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 04/25] target-xtensa: Introduce XtensaCPU subclasses Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 05/25] gdbstub: Fix cpu_gdb_{read, write}_register() Coding Style Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 06/25] gdbstub: Drop dead code in cpu_gdb_{read, write}_register() Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 07/25] cpu: Introduce CPUState::gdb_num_regs and CPUClass::gdb_num_core_regs Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 08/25] target-i386: Move cpu_gdb_{read, write}_register() Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 09/25] target-ppc: " Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 10/25] target-sparc: " Andreas Färber
2013-07-26 22:05 ` Andreas Färber [this message]
2013-07-26 22:05 ` [Qemu-devel] [PULL 12/25] target-m68k: " Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 13/25] target-mips: " Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 14/25] target-openrisc: " Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 15/25] target-sh4: " Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 16/25] target-microblaze: " Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 17/25] target-cris: " Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 18/25] target-alpha: " Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 19/25] target-s390x: " Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 20/25] target-lm32: " Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 21/25] target-xtensa: " Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 22/25] gdbstub: Replace GET_REG*() macros with gdb_get_reg*() functions Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 23/25] cpu: Introduce CPUClass::gdb_{read, write}_register() Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 24/25] target-cris: Factor out CPUClass::gdb_read_register() hook for v10 Andreas Färber
2013-07-26 22:05 ` [Qemu-devel] [PULL 25/25] cpu: Introduce CPUClass::gdb_core_xml_file for GDB_CORE_XML Andreas Färber

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