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
next prev 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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1374876350-32189-12-git-send-email-afaerber@suse.de \
--to=afaerber@suse.de \
--cc=paul@codesourcery.com \
--cc=peter.maydell@linaro.org \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).