From: Yao Qi <qiyaoltc@gmail.com>
To: gdb-patches@sourceware.org
Subject: [PATCH 02/11] New aarch32-linux-nat.c
Date: Wed, 01 Jul 2015 13:58:00 -0000 [thread overview]
Message-ID: <1435759111-22856-3-git-send-email-yao.qi@linaro.org> (raw)
In-Reply-To: <1435759111-22856-1-git-send-email-yao.qi@linaro.org>
This patch is to move all the code about transferring
regcache <-> byte buffer for arm (aarch32) to a separate file
aarch32-linux-nat.c. Then, in the following patch, aarch64 code
can use it to do multi-arch debugging. This is a refactory patch.
gdb:
2015-06-24 Yao Qi <yao.qi@linaro.org>
* aarch32-linux-nat.c: New file.
* aarch32-linux-nat.h: New file.
* arm-linux-nat.c: Include aarch32-linux-nat.h.
(fetch_regs): Move code to aarch32-linux-nat.c. Call
aarch32_gp_regcache_supply.
(store_regs): Move code to aarch32-linux-nat.c. Call
aarch32_gp_regcache_collect.
(fetch_vfp_regs): Move code to aarch32-linux-nat.c. Call
aarch32_vfp_regcache_supply.
(store_vfp_regs): Move code to aarch32-linux-nat.c. Call
aarch32_vfp_regcache_collect.
* config/arm/linux.mh (NATDEPFILES): Add aarch32-linux-nat.o.
---
gdb/aarch32-linux-nat.c | 99 +++++++++++++++++++++++++++++++++++++++++++++++++
gdb/aarch32-linux-nat.h | 29 +++++++++++++++
gdb/arm-linux-nat.c | 46 +++++------------------
gdb/config/arm/linux.mh | 2 +-
4 files changed, 138 insertions(+), 38 deletions(-)
create mode 100644 gdb/aarch32-linux-nat.c
create mode 100644 gdb/aarch32-linux-nat.h
diff --git a/gdb/aarch32-linux-nat.c b/gdb/aarch32-linux-nat.c
new file mode 100644
index 0000000..3147399
--- /dev/null
+++ b/gdb/aarch32-linux-nat.c
@@ -0,0 +1,99 @@
+/* Copyright (C) 1999-2015 Free Software Foundation, Inc.
+
+ This file is part of GDB.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "defs.h"
+
+#include "regcache.h"
+#include "arm-tdep.h"
+#include "arm-linux-tdep.h"
+
+#include "aarch32-linux-nat.h"
+
+/* Supply GP registers contents, stored in REGS, to REGCACHE. ARM_APCS_32
+ is true if the 32-bit mode is in use, otherwise, it is false. */
+
+void
+aarch32_gp_regcache_supply (struct regcache *regcache, uint32_t *regs,
+ int arm_apcs_32)
+{
+ int regno;
+
+ for (regno = ARM_A1_REGNUM; regno < ARM_PC_REGNUM; regno++)
+ regcache_raw_supply (regcache, regno, ®s[regno]);
+
+ if (arm_apcs_32)
+ regcache_raw_supply (regcache, ARM_PS_REGNUM, ®s[ARM_CPSR_GREGNUM]);
+ else
+ regcache_raw_supply (regcache, ARM_PS_REGNUM, ®s[ARM_PC_REGNUM]);
+
+ regs[ARM_PC_REGNUM] = gdbarch_addr_bits_remove
+ (get_regcache_arch (regcache), regs[ARM_PC_REGNUM]);
+ regcache_raw_supply (regcache, ARM_PC_REGNUM, ®s[ARM_PC_REGNUM]);
+}
+
+/* Collect GP registers from REGCACHE to buffer REGS. ARM_APCS_32 is
+ true if the 32-bit mode is in use, otherwise, it is false. */
+
+void
+aarch32_gp_regcache_collect (const struct regcache *regcache, uint32_t *regs,
+ int arm_apcs_32)
+{
+ int regno;
+
+ for (regno = ARM_A1_REGNUM; regno <= ARM_PC_REGNUM; regno++)
+ {
+ if (REG_VALID == regcache_register_status (regcache, regno))
+ regcache_raw_collect (regcache, regno, ®s[regno]);
+ }
+
+ if (arm_apcs_32
+ && REG_VALID == regcache_register_status (regcache, ARM_PS_REGNUM))
+ regcache_raw_collect (regcache, ARM_PS_REGNUM,
+ ®s[ARM_CPSR_GREGNUM]);
+}
+
+/* Supply VFP registers contents, stored in REGS, to REGCACHE.
+ VFP_REGISTER_COUNT is the number of VFP registers. */
+
+void
+aarch32_vfp_regcache_supply (struct regcache *regcache, gdb_byte *regs,
+ const int vfp_register_count)
+{
+ int regno;
+
+ for (regno = 0; regno < vfp_register_count; regno++)
+ regcache_raw_supply (regcache, regno + ARM_D0_REGNUM,
+ regs + regno * 8);
+
+ regcache_raw_supply (regcache, ARM_FPSCR_REGNUM,
+ regs + 32 * 8);
+}
+
+/* Collect VFP registers from REGCACHE to buffer REGS.
+ VFP_REGISTER_COUNT is the number VFP registers. */
+
+void
+aarch32_vfp_regcache_collect (const struct regcache *regcache, gdb_byte *regs,
+ const int vfp_register_count)
+{
+ int regno;
+
+ for (regno = 0; regno < vfp_register_count; regno++)
+ regcache_raw_collect (regcache, regno + ARM_D0_REGNUM, regs + regno * 8);
+
+ regcache_raw_collect (regcache, ARM_FPSCR_REGNUM, regs + 32 * 8);
+}
diff --git a/gdb/aarch32-linux-nat.h b/gdb/aarch32-linux-nat.h
new file mode 100644
index 0000000..1b7ff83e
--- /dev/null
+++ b/gdb/aarch32-linux-nat.h
@@ -0,0 +1,29 @@
+/* Copyright (C) 1999-2015 Free Software Foundation, Inc.
+
+ This file is part of GDB.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+void aarch32_gp_regcache_supply (struct regcache *regcache, uint32_t *regs,
+ int arm_apcs_32);
+
+void aarch32_gp_regcache_collect (const struct regcache *regcache,
+ uint32_t *regs, int arm_apcs_32);
+
+void aarch32_vfp_regcache_supply (struct regcache *regcache, gdb_byte *regs,
+ const int vfp_register_count);
+
+void aarch32_vfp_regcache_collect (const struct regcache *regcache,
+ gdb_byte *regs,
+ const int vfp_register_count);
diff --git a/gdb/arm-linux-nat.c b/gdb/arm-linux-nat.c
index 5a8880f..aca0461 100644
--- a/gdb/arm-linux-nat.c
+++ b/gdb/arm-linux-nat.c
@@ -29,6 +29,7 @@
#include "arm-tdep.h"
#include "arm-linux-tdep.h"
+#include "aarch32-linux-nat.h"
#include <elf/common.h>
#include <sys/user.h>
@@ -212,20 +213,7 @@ fetch_regs (struct regcache *regcache)
return;
}
- for (regno = ARM_A1_REGNUM; regno < ARM_PC_REGNUM; regno++)
- regcache_raw_supply (regcache, regno, (char *) ®s[regno]);
-
- if (arm_apcs_32)
- regcache_raw_supply (regcache, ARM_PS_REGNUM,
- (char *) ®s[ARM_CPSR_GREGNUM]);
- else
- regcache_raw_supply (regcache, ARM_PS_REGNUM,
- (char *) ®s[ARM_PC_REGNUM]);
-
- regs[ARM_PC_REGNUM] = gdbarch_addr_bits_remove
- (get_regcache_arch (regcache), regs[ARM_PC_REGNUM]);
- regcache_raw_supply (regcache, ARM_PC_REGNUM,
- (char *) ®s[ARM_PC_REGNUM]);
+ aarch32_gp_regcache_supply (regcache, (uint32_t *) regs, arm_apcs_32);
}
static void
@@ -256,15 +244,7 @@ store_regs (const struct regcache *regcache)
return;
}
- for (regno = ARM_A1_REGNUM; regno <= ARM_PC_REGNUM; regno++)
- {
- if (REG_VALID == regcache_register_status (regcache, regno))
- regcache_raw_collect (regcache, regno, (char *) ®s[regno]);
- }
-
- if (arm_apcs_32 && REG_VALID == regcache_register_status (regcache, ARM_PS_REGNUM))
- regcache_raw_collect (regcache, ARM_PS_REGNUM,
- (char *) ®s[ARM_CPSR_GREGNUM]);
+ aarch32_gp_regcache_collect (regcache, (uint32_t *) regs, arm_apcs_32);
if (have_ptrace_getregset == TRIBOOL_TRUE)
{
@@ -370,7 +350,7 @@ store_wmmx_regs (const struct regcache *regcache)
static void
fetch_vfp_regs (struct regcache *regcache)
{
- char regbuf[VFP_REGS_SIZE];
+ gdb_byte regbuf[VFP_REGS_SIZE];
int ret, regno, tid;
struct gdbarch *gdbarch = get_regcache_arch (regcache);
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
@@ -395,18 +375,14 @@ fetch_vfp_regs (struct regcache *regcache)
return;
}
- for (regno = 0; regno < tdep->vfp_register_count; regno++)
- regcache_raw_supply (regcache, regno + ARM_D0_REGNUM,
- (char *) regbuf + regno * 8);
-
- regcache_raw_supply (regcache, ARM_FPSCR_REGNUM,
- (char *) regbuf + 32 * 8);
+ aarch32_vfp_regcache_supply (regcache, regbuf,
+ tdep->vfp_register_count);
}
static void
store_vfp_regs (const struct regcache *regcache)
{
- char regbuf[VFP_REGS_SIZE];
+ gdb_byte regbuf[VFP_REGS_SIZE];
int ret, regno, tid;
struct gdbarch *gdbarch = get_regcache_arch (regcache);
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
@@ -431,12 +407,8 @@ store_vfp_regs (const struct regcache *regcache)
return;
}
- for (regno = 0; regno < tdep->vfp_register_count; regno++)
- regcache_raw_collect (regcache, regno + ARM_D0_REGNUM,
- (char *) regbuf + regno * 8);
-
- regcache_raw_collect (regcache, ARM_FPSCR_REGNUM,
- (char *) regbuf + 32 * 8);
+ aarch32_vfp_regcache_collect (regcache, regbuf,
+ tdep->vfp_register_count);
if (have_ptrace_getregset == TRIBOOL_TRUE)
{
diff --git a/gdb/config/arm/linux.mh b/gdb/config/arm/linux.mh
index f0c5967..003ca1f 100644
--- a/gdb/config/arm/linux.mh
+++ b/gdb/config/arm/linux.mh
@@ -2,7 +2,7 @@
NAT_FILE= config/nm-linux.h
NATDEPFILES= inf-ptrace.o fork-child.o arm-linux-nat.o \
- proc-service.o linux-thread-db.o \
+ aarch32-linux-nat.o proc-service.o linux-thread-db.o \
linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o \
linux-waitpid.o linux-personality.o linux-namespaces.o
NAT_CDEPS = $(srcdir)/proc-service.list
--
1.9.1
next prev parent reply other threads:[~2015-07-01 13:58 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-01 13:58 [PATCH 00/11] Aarch64 linux GDB native multi-arch debugging (part 1) Yao Qi
2015-07-01 13:58 ` [PATCH 08/11] New proc is_aarch64_target Yao Qi
2015-07-01 14:10 ` Andreas Schwab
2015-07-01 14:19 ` Yao Qi
2015-07-01 14:39 ` Andreas Schwab
2015-07-01 13:58 ` [PATCH 04/11] Set architecture to arm in arm-*.xml files Yao Qi
2015-07-01 13:58 ` [PATCH 07/11] New proc is_aarch32_target Yao Qi
2015-07-01 13:58 ` Yao Qi [this message]
2015-07-01 13:58 ` [PATCH 01/11] Remove {fetch,store}_fpregister and {fetch,store}_register Yao Qi
2015-07-01 13:59 ` [PATCH 09/11] [gdbserver] Rename supports_conditional_breakpoints to supports_hardware_single_step Yao Qi
2015-07-01 13:59 ` [PATCH 10/11] Reply s and S vCont actions if target supports hardware single step Yao Qi
2015-07-01 13:59 ` [PATCH 03/11] Native debug arm program by aarch64 GDB Yao Qi
2015-07-01 13:59 ` [PATCH 11/11] New target_ops hook to_can_do_single_step Yao Qi
2015-07-01 16:43 ` Pedro Alves
2015-07-02 8:56 ` Yao Qi
2015-07-02 9:09 ` Pedro Alves
2015-07-01 13:59 ` [PATCH 05/11] Adjust gdb.multi tests for aarch64 Yao Qi
2015-07-01 13:59 ` [PATCH 06/11] Enable multi-arch test in catch-syscall.exp on aarch64 Yao Qi
2015-07-01 17:00 ` [PATCH 00/11] Aarch64 linux GDB native multi-arch debugging (part 1) Pedro Alves
2015-07-01 18:54 ` Pedro Alves
2015-07-02 9:05 ` Yao Qi
2015-07-07 16:13 ` Yao Qi
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