* [PATCH v4] gdb: bfin: new port
@ 2010-12-15 16:48 Mike Frysinger
2010-12-15 16:48 ` [PATCH v4] gdbserver: " Mike Frysinger
2010-12-15 19:17 ` [PATCH v4] gdb: " Pedro Alves
0 siblings, 2 replies; 7+ messages in thread
From: Mike Frysinger @ 2010-12-15 16:48 UTC (permalink / raw)
To: gdb-patches; +Cc: toolchain-devel, Jie Zhang
From: Jie Zhang <jie.zhang@analog.com>
Initial support for Blackfin processors. This supports the standard ABI.
Signed-off-by: Jie Zhang <jie.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-12-15 Jie Zhang <jie.zhang@analog.com>
* Makefile.in (ALLDEPFILES): Add bfin-linux-tdep.c and bfin-tdep.c.
(HFILES_NO_SRCDIR): Add bfin-tdep.h.
(ALL_TARGET_OBS): Add bfin-linux-tdep.o and bfin-tdep.o.
* NEWS: Mention new Blackfin port.
* bfin-tdep.c, bfin-tdep.h, bfin-linux-tdep.c,
syscalls/bfin-linux.xml: New files.
* configure.tgt (bfin-*-*): Handle bfin targets.
---
v4
- split linux support out into bfin-linux-tdep
- convert sigcontext handling to to trad-frame.h
- drop all mention of pseudo flat/fdpic registers
gdb/Makefile.in | 4 +-
gdb/NEWS | 4 +
gdb/bfin-linux-tdep.c | 174 +++++++++
gdb/bfin-tdep.c | 822 +++++++++++++++++++++++++++++++++++++++++++
gdb/bfin-tdep.h | 102 ++++++
gdb/configure.tgt | 5 +
gdb/syscalls/bfin-linux.xml | 326 +++++++++++++++++
7 files changed, 1436 insertions(+), 1 deletions(-)
create mode 100644 gdb/bfin-linux-tdep.c
create mode 100644 gdb/bfin-tdep.c
create mode 100644 gdb/bfin-tdep.h
create mode 100644 gdb/syscalls/bfin-linux.xml
diff --git a/gdb/Makefile.in b/gdb/Makefile.in
index ff10039..e0f6636 100644
--- a/gdb/Makefile.in
+++ b/gdb/Makefile.in
@@ -508,6 +508,7 @@ ALL_TARGET_OBS = \
armnbsd-tdep.o armobsd-tdep.o \
arm-tdep.o arm-wince-tdep.o \
avr-tdep.o \
+ bfin-linux-tdep.o bfin-tdep.o \
cris-tdep.o \
dicos-tdep.o \
frv-linux-tdep.o frv-tdep.o \
@@ -782,7 +783,7 @@ annotate.h sim-regno.h dictionary.h dfp.h main.h frame-unwind.h \
remote-fileio.h i386-linux-tdep.h vax-tdep.h objc-lang.h \
sentinel-frame.h bcache.h symfile.h windows-tdep.h linux-tdep.h \
gdb_usleep.h jit.h xml-syscall.h ada-operator.inc microblaze-tdep.h \
-psymtab.h psympriv.h progspace.h
+psymtab.h psympriv.h progspace.h bfin-tdep.h
# Header files that already have srcdir in them, or which are in objdir.
@@ -1420,6 +1421,7 @@ ALLDEPFILES = \
arm-linux-nat.c arm-linux-tdep.c arm-symbian-tdep.c arm-tdep.c \
armnbsd-nat.c armbsd-tdep.c armnbsd-tdep.c armobsd-tdep.c \
avr-tdep.c \
+ bfin-linux-tdep.c bfin-tdep.c \
bsd-uthread.c bsd-kvm.c \
core-regset.c corelow.c \
dcache.c dicos-tdep.c darwin-nat.c \
diff --git a/gdb/NEWS b/gdb/NEWS
index 559609b..633338a 100644
--- a/gdb/NEWS
+++ b/gdb/NEWS
@@ -108,6 +108,10 @@
** GDBserver is now supported on PowerPC LynxOS (versions 4.x and 5.x),
and i686 LynxOS (version 5.x).
+* New targets:
+
+Analog Devices, Inc. Blackfin Processor bfin-*
+
* Ada task switching is now supported on sparc-elf targets when
debugging a program using the Ravenscar Profile. For more information,
see the "Tasking Support when using the Ravenscar Profile" section
diff --git a/gdb/bfin-linux-tdep.c b/gdb/bfin-linux-tdep.c
new file mode 100644
index 0000000..61eea55
--- /dev/null
+++ b/gdb/bfin-linux-tdep.c
@@ -0,0 +1,174 @@
+/* Target-dependent code for Analog Devices Blackfin processer, for GDB.
+
+ Copyright (C) 2005-2010 Free Software Foundation, Inc.
+ Contributed by Analog Devices.
+
+ 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 "arch-utils.h"
+#include "regcache.h"
+#include "tramp-frame.h"
+#include "trad-frame.h"
+#include "osabi.h"
+#include "xml-syscall.h"
+#include "linux-tdep.h"
+#include "bfin-tdep.h"
+
+/* From <asm/sigcontext.h>. */
+
+#define SIGCONTEXT_OFFSET 168
+
+static const int bfin_linux_sigcontext_reg_offset[BFIN_NUM_REGS] =
+{
+ 0 * 4, /* %r0 */
+ 1 * 4, /* %r1 */
+ 2 * 4, /* %r2 */
+ 3 * 4, /* %r3 */
+ 4 * 4, /* %r4 */
+ 5 * 4, /* %r5 */
+ 6 * 4, /* %r6 */
+ 7 * 4, /* %r7 */
+ 8 * 4, /* %p0 */
+ 9 * 4, /* %p1 */
+ 10 * 4, /* %p2 */
+ 11 * 4, /* %p3 */
+ 12 * 4, /* %p4 */
+ 13 * 4, /* %p5 */
+ 14 * 4, /* %sp */
+ 23 * 4, /* %fp */
+ 24 * 4, /* %i0 */
+ 25 * 4, /* %i1 */
+ 26 * 4, /* %i2 */
+ 27 * 4, /* %i3 */
+ 28 * 4, /* %m0 */
+ 29 * 4, /* %m1 */
+ 30 * 4, /* %m2 */
+ 31 * 4, /* %m3 */
+ 36 * 4, /* %b0 */
+ 37 * 4, /* %b1 */
+ 38 * 4, /* %b2 */
+ 39 * 4, /* %b3 */
+ 32 * 4, /* %l0 */
+ 33 * 4, /* %l1 */
+ 34 * 4, /* %l2 */
+ 35 * 4, /* %l3 */
+ 17 * 4, /* %a0x */
+ 15 * 4, /* %a0w */
+ 18 * 4, /* %a1x */
+ 16 * 4, /* %a1w */
+ 19 * 4, /* %astat */
+ 20 * 4, /* %rets */
+ 40 * 4, /* %lc0 */
+ 42 * 4, /* %lt0 */
+ 44 * 4, /* %lb0 */
+ 41 * 4, /* %lc1 */
+ 43 * 4, /* %lt1 */
+ 45 * 4, /* %lb1 */
+ -1, /* %cycles */
+ -1, /* %cycles2 */
+ -1, /* %usp */
+ 46 * 4, /* %seqstat */
+ -1, /* syscfg */
+ 21 * 4, /* %reti */
+ 22 * 4, /* %retx */
+ -1, /* %retn */
+ -1, /* %rete */
+ 21 * 4, /* %pc */
+ -1, /* %cc */
+};
+
+/* Signal trampolines. */
+
+static void
+bfin_linux_sigframe_init (const struct tramp_frame *self,
+ struct frame_info *this_frame,
+ struct trad_frame_cache *this_cache,
+ CORE_ADDR func)
+{
+ struct gdbarch *gdbarch = get_frame_arch (this_frame);
+ CORE_ADDR sp = get_frame_sp (this_frame);
+ CORE_ADDR pc = get_frame_pc (this_frame);
+ CORE_ADDR sigcontext = sp + SIGCONTEXT_OFFSET;
+ struct frame_id this_id;
+ const int *reg_offset = bfin_linux_sigcontext_reg_offset;
+ int i;
+
+ for (i = 0; i < BFIN_NUM_REGS; i++)
+ if (reg_offset[i] != -1)
+ trad_frame_set_reg_addr (this_cache, i, sigcontext + reg_offset[i]);
+
+ /* This would come after the LINK instruction in the ret_from_signal
+ function, hence the frame id would be SP + 8. */
+ trad_frame_set_id (this_cache, frame_id_build (sp + 8, pc));
+}
+
+static const struct tramp_frame bfin_linux_sigframe =
+{
+ SIGTRAMP_FRAME,
+ 4,
+ {
+ { 0x00ADE128, 0xffffffff }, /* P0 = __NR_rt_sigreturn; */
+ { 0x00A0, 0xffff }, /* EXCPT 0; */
+ { TRAMP_SENTINEL_INSN, -1 },
+ },
+ bfin_linux_sigframe_init,
+};
+
+static LONGEST
+bfin_linux_get_syscall_number (struct gdbarch *gdbarch,
+ ptid_t ptid)
+{
+ struct regcache *regcache = get_thread_regcache (ptid);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ /* The content of a register. */
+ gdb_byte buf[4];
+ /* The result. */
+ LONGEST ret;
+
+ /* Getting the system call number from the register.
+ When dealing with Blackfin architecture, this information
+ is stored at %p0 register. */
+ regcache_cooked_read (regcache, BFIN_P0_REGNUM, buf);
+
+ ret = extract_signed_integer (buf, 4, byte_order);
+
+ return ret;
+}
+
+static void
+bfin_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+{
+ linux_init_abi (info, gdbarch);
+
+ /* Set the sigtramp frame sniffer. */
+ tramp_frame_prepend_unwinder (gdbarch, &bfin_linux_sigframe);
+
+ /* Functions for 'catch syscall'. */
+ set_xml_syscall_file_name ("syscalls/bfin-linux.xml");
+ set_gdbarch_get_syscall_number (gdbarch,
+ bfin_linux_get_syscall_number);
+}
+
+/* Provide a prototype to silence -Wmissing-prototypes. */
+extern initialize_file_ftype _initialize_bfin_linux_tdep;
+
+void
+_initialize_bfin_linux_tdep (void)
+{
+ gdbarch_register_osabi (bfd_arch_bfin, 0, GDB_OSABI_LINUX,
+ bfin_linux_init_abi);
+}
diff --git a/gdb/bfin-tdep.c b/gdb/bfin-tdep.c
new file mode 100644
index 0000000..3746c9c
--- /dev/null
+++ b/gdb/bfin-tdep.c
@@ -0,0 +1,822 @@
+/* Target-dependent code for Analog Devices Blackfin processer, for GDB.
+
+ Copyright (C) 2005-2010 Free Software Foundation, Inc.
+ Contributed by Analog Devices.
+
+ 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 "gdb_string.h"
+#include "inferior.h"
+#include "gdbcore.h"
+#include "arch-utils.h"
+#include "regcache.h"
+#include "frame.h"
+#include "frame-unwind.h"
+#include "frame-base.h"
+#include "trad-frame.h"
+#include "dis-asm.h"
+#include "gdb_assert.h"
+#include "dwarf2-frame.h"
+#include "symtab.h"
+#include "elf-bfd.h"
+#include "elf/bfin.h"
+#include "osabi.h"
+#include "infcall.h"
+#include "xml-syscall.h"
+#include "bfin-tdep.h"
+
+/* Macros used by prologue functions. */
+#define P_LINKAGE 0xE800
+#define P_MINUS_SP1 0x0140
+#define P_MINUS_SP2 0x05C0
+#define P_MINUS_SP3 0x0540
+#define P_MINUS_SP4 0x04C0
+#define P_SP_PLUS 0x6C06
+#define P_P2_LOW 0xE10A
+#define P_P2_HIGH 0XE14A
+#define P_SP_EQ_SP_PLUS_P2 0X5BB2
+#define P_SP_EQ_P2_PLUS_SP 0x5B96
+#define P_MINUS_MINUS_SP_EQ_RETS 0x0167
+
+/* Macros used for program flow control. */
+/* 16 bit instruction, max */
+#define P_16_BIT_INSR_MAX 0xBFFF
+/* 32 bit instruction, min */
+#define P_32_BIT_INSR_MIN 0xC000
+/* 32 bit instruction, max */
+#define P_32_BIT_INSR_MAX 0xE801
+/* jump (preg), 16-bit, min */
+#define P_JUMP_PREG_MIN 0x0050
+/* jump (preg), 16-bit, max */
+#define P_JUMP_PREG_MAX 0x0057
+/* jump (pc+preg), 16-bit, min */
+#define P_JUMP_PC_PLUS_PREG_MIN 0x0080
+/* jump (pc+preg), 16-bit, max */
+#define P_JUMP_PC_PLUS_PREG_MAX 0x0087
+/* jump.s pcrel13m2, 16-bit, min */
+#define P_JUMP_S_MIN 0x2000
+/* jump.s pcrel13m2, 16-bit, max */
+#define P_JUMP_S_MAX 0x2FFF
+/* jump.l pcrel25m2, 32-bit, min */
+#define P_JUMP_L_MIN 0xE200
+/* jump.l pcrel25m2, 32-bit, max */
+#define P_JUMP_L_MAX 0xE2FF
+/* conditional jump pcrel11m2, 16-bit, min */
+#define P_IF_CC_JUMP_MIN 0x1800
+/* conditional jump pcrel11m2, 16-bit, max */
+#define P_IF_CC_JUMP_MAX 0x1BFF
+/* conditional jump(bp) pcrel11m2, 16-bit, min */
+#define P_IF_CC_JUMP_BP_MIN 0x1C00
+/* conditional jump(bp) pcrel11m2, 16-bit, max */
+#define P_IF_CC_JUMP_BP_MAX 0x1FFF
+/* conditional !jump pcrel11m2, 16-bit, min */
+#define P_IF_NOT_CC_JUMP_MIN 0x1000
+/* conditional !jump pcrel11m2, 16-bit, max */
+#define P_IF_NOT_CC_JUMP_MAX 0x13FF
+/* conditional jump(bp) pcrel11m2, 16-bit, min */
+#define P_IF_NOT_CC_JUMP_BP_MIN 0x1400
+/* conditional jump(bp) pcrel11m2, 16-bit, max */
+#define P_IF_NOT_CC_JUMP_BP_MAX 0x17FF
+/* call (preg), 16-bit, min */
+#define P_CALL_PREG_MIN 0x0060
+/* call (preg), 16-bit, max */
+#define P_CALL_PREG_MAX 0x0067
+/* call (pc+preg), 16-bit, min */
+#define P_CALL_PC_PLUS_PREG_MIN 0x0070
+/* call (pc+preg), 16-bit, max */
+#define P_CALL_PC_PLUS_PREG_MAX 0x0077
+/* call pcrel25m2, 32-bit, min */
+#define P_CALL_MIN 0xE300
+/* call pcrel25m2, 32-bit, max */
+#define P_CALL_MAX 0xE3FF
+/* RTS */
+#define P_RTS 0x0010
+/* MNOP */
+#define P_MNOP 0xC803
+/* EXCPT, 16-bit, min */
+#define P_EXCPT_MIN 0x00A0
+/* EXCPT, 16-bit, max */
+#define P_EXCPT_MAX 0x00AF
+/* multi instruction mask 1, 16-bit */
+#define P_BIT_MULTI_INS_1 0xC000
+/* multi instruction mask 2, 16-bit */
+#define P_BIT_MULTI_INS_2 0x0800
+
+/* Macros used for signal handling */
+/* Instruction 1 for signal */
+#define P_SIGNAL_INS_1 0x00ADE128
+/* Instruction 2 for signal */
+#define P_SIGNAL_INS_2 0x000000A0
+
+/* The maximum bytes we search to skip the prologue. */
+#define UPPER_LIMIT 40
+
+#define RETS_OFFSET 4
+
+/* Initial value: Register names used in BFIN's ISA documentation. */
+
+static const char * const bfin_register_name_strings[] =
+{
+ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
+ "p0", "p1", "p2", "p3", "p4", "p5", "sp", "fp",
+ "i0", "i1", "i2", "i3", "m0", "m1", "m2", "m3",
+ "b0", "b1", "b2", "b3", "l0", "l1", "l2", "l3",
+ "a0x", "a0w", "a1x", "a1w", "astat", "rets",
+ "lc0", "lt0", "lb0", "lc1", "lt1", "lb1", "cycles", "cycles2",
+ "usp", "seqstat", "syscfg", "reti", "retx", "retn", "rete",
+ "pc", "cc",
+};
+
+#define NUM_BFIN_REGNAMES ARRAY_SIZE (bfin_register_name_strings)
+
+
+/* In this diagram successive memory locations increase downwards or the
+ stack grows upwards with negative indices. (PUSH analogy for stack.)
+
+ The top frame is the "frame" of the current function being executed.
+
+ +--------------+ SP -
+ | local vars | ^
+ +--------------+ |
+ | save regs | |
+ +--------------+ FP |
+ | old FP -|-- top
+ +--------------+ | frame
+ | RETS | | |
+ +--------------+ | |
+ | param 1 | | |
+ | param 2 | | |
+ | ... | | V
+ +--------------+ | -
+ | local vars | | ^
+ +--------------+ | |
+ | save regs | | |
+ +--------------+<- |
+ | old FP -|-- next
+ +--------------+ | frame
+ | RETS | | |
+ +--------------+ | |
+ | param 1 | | |
+ | param 2 | | |
+ | ... | | V
+ +--------------+ | -
+ | local vars | | ^
+ +--------------+ | |
+ | save regs | | |
+ +--------------+<- next frame
+ | old FP | |
+ +--------------+ |
+ | RETS | V
+ +--------------+ -
+
+ The frame chain is formed as following:
+
+ FP has the topmost frame.
+ FP + 4 has the previous FP and so on. */
+
+
+/* Map from DWARF2 register number to GDB register number. */
+
+static const int map_gcc_gdb[] =
+{
+ BFIN_R0_REGNUM,
+ BFIN_R1_REGNUM,
+ BFIN_R2_REGNUM,
+ BFIN_R3_REGNUM,
+ BFIN_R4_REGNUM,
+ BFIN_R5_REGNUM,
+ BFIN_R6_REGNUM,
+ BFIN_R7_REGNUM,
+ BFIN_P0_REGNUM,
+ BFIN_P1_REGNUM,
+ BFIN_P2_REGNUM,
+ BFIN_P3_REGNUM,
+ BFIN_P4_REGNUM,
+ BFIN_P5_REGNUM,
+ BFIN_SP_REGNUM,
+ BFIN_FP_REGNUM,
+ BFIN_I0_REGNUM,
+ BFIN_I1_REGNUM,
+ BFIN_I2_REGNUM,
+ BFIN_I3_REGNUM,
+ BFIN_B0_REGNUM,
+ BFIN_B1_REGNUM,
+ BFIN_B2_REGNUM,
+ BFIN_B3_REGNUM,
+ BFIN_L0_REGNUM,
+ BFIN_L1_REGNUM,
+ BFIN_L2_REGNUM,
+ BFIN_L3_REGNUM,
+ BFIN_M0_REGNUM,
+ BFIN_M1_REGNUM,
+ BFIN_M2_REGNUM,
+ BFIN_M3_REGNUM,
+ BFIN_A0_DOT_X_REGNUM,
+ BFIN_A1_DOT_X_REGNUM,
+ BFIN_CC_REGNUM,
+ BFIN_RETS_REGNUM,
+ BFIN_RETI_REGNUM,
+ BFIN_RETX_REGNUM,
+ BFIN_RETN_REGNUM,
+ BFIN_RETE_REGNUM,
+ BFIN_ASTAT_REGNUM,
+ BFIN_SEQSTAT_REGNUM,
+ BFIN_USP_REGNUM,
+ BFIN_LT0_REGNUM,
+ BFIN_LT1_REGNUM,
+ BFIN_LC0_REGNUM,
+ BFIN_LC1_REGNUM,
+ BFIN_LB0_REGNUM,
+ BFIN_LB1_REGNUM
+};
+
+
+struct bfin_frame_cache
+{
+ /* Base address. */
+ CORE_ADDR base;
+ CORE_ADDR sp_offset;
+ CORE_ADDR pc;
+ int frameless_pc_value;
+
+ /* Saved registers. */
+ CORE_ADDR saved_regs[BFIN_NUM_REGS];
+ CORE_ADDR saved_sp;
+
+ /* Stack space reserved for local variables. */
+ long locals;
+};
+
+/* Allocate and initialize a frame cache. */
+
+static struct bfin_frame_cache *
+bfin_alloc_frame_cache (void)
+{
+ struct bfin_frame_cache *cache;
+ int i;
+
+ cache = FRAME_OBSTACK_ZALLOC (struct bfin_frame_cache);
+
+ /* Base address. */
+ cache->base = 0;
+ cache->sp_offset = -4;
+ cache->pc = 0;
+ cache->frameless_pc_value = 0;
+
+ /* Saved registers. We initialize these to -1 since zero is a valid
+ offset (that's where fp is supposed to be stored). */
+ for (i = 0; i < BFIN_NUM_REGS; i++)
+ cache->saved_regs[i] = -1;
+
+ /* Frameless until proven otherwise. */
+ cache->locals = -1;
+
+ return cache;
+}
+
+static struct bfin_frame_cache *
+bfin_frame_cache (struct frame_info *this_frame, void **this_cache)
+{
+ struct bfin_frame_cache *cache;
+ int i;
+
+ if (*this_cache)
+ return *this_cache;
+
+ cache = bfin_alloc_frame_cache ();
+ *this_cache = cache;
+
+ cache->base = get_frame_register_unsigned (this_frame, BFIN_FP_REGNUM);
+ if (cache->base == 0)
+ return cache;
+
+ /* For normal frames, PC is stored at [FP + 4]. */
+ cache->saved_regs[BFIN_PC_REGNUM] = 4;
+ cache->saved_regs[BFIN_FP_REGNUM] = 0;
+
+ /* Adjust all the saved registers such that they contain addresses
+ instead of offsets. */
+ for (i = 0; i < BFIN_NUM_REGS; i++)
+ if (cache->saved_regs[i] != -1)
+ cache->saved_regs[i] += cache->base;
+
+ cache->pc = get_frame_func (this_frame) ;
+ if (cache->pc == 0 || cache->pc == get_frame_pc (this_frame))
+ {
+ /* Either there is no prologue (frameless function) or we are at
+ the start of a function. In short we do not have a frame.
+ PC is stored in rets register. FP points to previous frame. */
+
+ cache->saved_regs[BFIN_PC_REGNUM] =
+ get_frame_register_unsigned (this_frame, BFIN_RETS_REGNUM);
+ cache->frameless_pc_value = 1;
+ cache->base = get_frame_register_unsigned (this_frame, BFIN_FP_REGNUM);
+ cache->saved_regs[BFIN_FP_REGNUM] = cache->base;
+ cache->saved_sp = cache->base;
+ }
+ else
+ {
+ cache->frameless_pc_value = 0;
+
+ /* Now that we have the base address for the stack frame we can
+ calculate the value of SP in the calling frame. */
+ cache->saved_sp = cache->base + 8;
+ }
+
+ return cache;
+}
+
+static void
+bfin_frame_this_id (struct frame_info *this_frame,
+ void **this_cache,
+ struct frame_id *this_id)
+{
+ struct bfin_frame_cache *cache = bfin_frame_cache (this_frame, this_cache);
+
+ /* This marks the outermost frame. */
+ if (cache->base == 0)
+ return;
+
+ /* See the end of bfin_push_dummy_call. */
+ *this_id = frame_id_build (cache->base + 8, cache->pc);
+}
+
+static struct value *
+bfin_frame_prev_register (struct frame_info *this_frame,
+ void **this_cache,
+ int regnum)
+{
+ struct gdbarch *gdbarch = get_frame_arch (this_frame);
+ struct bfin_frame_cache *cache = bfin_frame_cache (this_frame, this_cache);
+
+ if (regnum == gdbarch_sp_regnum (gdbarch) && cache->saved_sp)
+ return frame_unwind_got_constant (this_frame, regnum, cache->saved_sp);
+
+ if (regnum < BFIN_NUM_REGS && cache->saved_regs[regnum] != -1)
+ return frame_unwind_got_memory (this_frame, regnum,
+ cache->saved_regs[regnum]);
+
+ return frame_unwind_got_register (this_frame, regnum, regnum);
+}
+
+static const struct frame_unwind bfin_frame_unwind =
+{
+ NORMAL_FRAME,
+ bfin_frame_this_id,
+ bfin_frame_prev_register,
+ NULL,
+ default_frame_sniffer
+};
+
+/* Check for "[--SP] = <reg>;" insns. These are appear in function
+ prologues to save misc registers onto the stack. */
+
+static int
+is_minus_minus_sp (int op)
+{
+ op &= 0xFFC0;
+
+ if ((op == P_MINUS_SP1) || (op == P_MINUS_SP2)
+ || (op == P_MINUS_SP3) || (op == P_MINUS_SP4))
+ return 1;
+
+ return 0;
+}
+
+/* Skip all the insns that appear in generated function prologues. */
+
+static CORE_ADDR
+bfin_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
+{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ int op = read_memory_unsigned_integer (pc, 2, byte_order);
+ CORE_ADDR orig_pc = pc;
+ int done = 0;
+
+ /* The new gcc prologue generates the register saves BEFORE the link
+ or RETS saving instruction.
+ So, our job is to stop either at those instructions or some upper
+ limit saying there is no frame! */
+
+ while (!done)
+ {
+ if (is_minus_minus_sp (op))
+ {
+ while (is_minus_minus_sp (op))
+ {
+ pc += 2;
+ op = read_memory_unsigned_integer (pc, 2, byte_order);
+ }
+
+ if (op == P_LINKAGE)
+ pc += 4;
+
+ done = 1;
+ }
+ else if (op == P_LINKAGE)
+ {
+ pc += 4;
+ done = 1;
+ }
+ else if (op == P_MINUS_MINUS_SP_EQ_RETS)
+ {
+ pc += 2;
+ done = 1;
+ }
+ else if (op == P_RTS)
+ {
+ done = 1;
+ }
+ else if ((op >= P_JUMP_PREG_MIN && op <= P_JUMP_PREG_MAX)
+ || (op >= P_JUMP_PC_PLUS_PREG_MIN
+ && op <= P_JUMP_PC_PLUS_PREG_MAX)
+ || (op == P_JUMP_S_MIN && op <= P_JUMP_S_MAX))
+ {
+ done = 1;
+ }
+ else if (pc - orig_pc >= UPPER_LIMIT)
+ {
+ warning (_("Function Prologue not recognised; pc will point to ENTRY_POINT of the function"));
+ pc = orig_pc + 2;
+ done = 1;
+ }
+ else
+ {
+ pc += 2; /* Not a terminating instruction go on. */
+ op = read_memory_unsigned_integer (pc, 2, byte_order);
+ }
+ }
+
+ /* TODO:
+ Dwarf2 uses entry point value AFTER some register initializations.
+ We should perhaps skip such asssignments as well (R6 = R1, ...). */
+
+ return pc;
+}
+
+/* Return the GDB type object for the "standard" data type of data in
+ register N. This should be void pointer for P0-P5, SP, FP;
+ void pointer to function for PC; int otherwise. */
+
+static struct type *
+bfin_register_type (struct gdbarch *gdbarch, int regnum)
+{
+ if ((regnum >= BFIN_P0_REGNUM && regnum <= BFIN_FP_REGNUM)
+ || regnum == BFIN_USP_REGNUM)
+ return builtin_type (gdbarch)->builtin_data_ptr;
+
+ if (regnum == BFIN_PC_REGNUM || regnum == BFIN_RETS_REGNUM)
+ return builtin_type (gdbarch)->builtin_func_ptr;
+
+ return builtin_type (gdbarch)->builtin_int32;
+}
+
+static CORE_ADDR
+bfin_push_dummy_call (struct gdbarch *gdbarch,
+ struct value *function,
+ struct regcache *regcache,
+ CORE_ADDR bp_addr,
+ int nargs,
+ struct value **args,
+ CORE_ADDR sp,
+ int struct_return,
+ CORE_ADDR struct_addr)
+{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ char buf[4];
+ int i;
+ long reg_r0, reg_r1, reg_r2;
+ int total_len = 0;
+ enum bfin_abi abi = bfin_abi (gdbarch);
+ CORE_ADDR func_addr = find_function_addr (function, NULL);
+
+ for (i = nargs - 1; i >= 0; i--)
+ {
+ struct type *value_type = value_enclosing_type (args[i]);
+ int len = TYPE_LENGTH (value_type);
+
+ total_len += (len + 3) & ~3;
+ }
+
+ /* At least twelve bytes of stack space must be allocated for the function's
+ arguments, even for functions that have less than 12 bytes of argument
+ data. */
+
+ if (total_len < 12)
+ sp -= 12 - total_len;
+
+ /* Push arguments in reverse order. */
+
+ for (i = nargs - 1; i >= 0; i--)
+ {
+ struct type *value_type = value_enclosing_type (args[i]);
+ struct type *arg_type = check_typedef (value_type);
+ int len = TYPE_LENGTH (value_type);
+ int container_len = (len + 3) & ~3;
+
+ sp -= container_len;
+ write_memory (sp, value_contents_writeable (args[i]), container_len);
+ }
+
+ /* initialize R0, R1 and R2 to the first 3 words of paramters */
+
+ reg_r0 = read_memory_integer (sp, 4, byte_order);
+ regcache_cooked_write_unsigned (regcache, BFIN_R0_REGNUM, reg_r0);
+ reg_r1 = read_memory_integer (sp + 4, 4, byte_order);
+ regcache_cooked_write_unsigned (regcache, BFIN_R1_REGNUM, reg_r1);
+ reg_r2 = read_memory_integer (sp + 8, 4, byte_order);
+ regcache_cooked_write_unsigned (regcache, BFIN_R2_REGNUM, reg_r2);
+
+ /* Store struct value address. */
+
+ if (struct_return)
+ regcache_cooked_write_unsigned (regcache, BFIN_P0_REGNUM, struct_addr);
+
+ /* Set the dummy return value to bp_addr.
+ A dummy breakpoint will be setup to execute the call. */
+
+ regcache_cooked_write_unsigned (regcache, BFIN_RETS_REGNUM, bp_addr);
+
+ /* Finally, update the stack pointer. */
+
+ regcache_cooked_write_unsigned (regcache, BFIN_SP_REGNUM, sp);
+
+ return sp;
+}
+
+/* Convert DWARF2 register number REG to the appropriate register number
+ used by GDB. */
+
+static int
+bfin_reg_to_regnum (struct gdbarch *gdbarch, int reg)
+{
+ if (reg > ARRAY_SIZE (map_gcc_gdb))
+ return 0;
+
+ return map_gcc_gdb[reg];
+}
+
+/* This function implements the BREAKPOINT_FROM_PC macro. It returns
+ a pointer to a string of bytes that encode a breakpoint instruction,
+ stores the length of the string to *lenptr, and adjusts the program
+ counter (if necessary) to point to the actual memory location where
+ the breakpoint should be inserted. */
+
+static const unsigned char *
+bfin_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr)
+{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ unsigned short iw;
+ static unsigned char bfin_breakpoint[] = {0xa1, 0x00, 0x00, 0x00};
+ static unsigned char bfin_sim_breakpoint[] = {0x25, 0x00, 0x00, 0x00};
+
+ iw = read_memory_unsigned_integer (*pcptr, 2, byte_order);
+
+ if ((iw & 0xf000) >= 0xc000)
+ /* 32-bit instruction. */
+ *lenptr = 4;
+ else
+ *lenptr = 2;
+
+ if (strcmp (target_shortname, "sim") == 0)
+ return bfin_sim_breakpoint;
+ else
+ return bfin_breakpoint;
+}
+
+static void
+bfin_extract_return_value (struct type *type,
+ struct regcache *regs,
+ gdb_byte *dst)
+{
+ struct gdbarch *gdbarch = get_regcache_arch (regs);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ bfd_byte *valbuf = dst;
+ int len = TYPE_LENGTH (type);
+ ULONGEST tmp;
+ int regno = BFIN_R0_REGNUM;
+
+ gdb_assert (len <= 8);
+
+ while (len > 0)
+ {
+ regcache_cooked_read_unsigned (regs, regno++, &tmp);
+ store_unsigned_integer (valbuf, (len > 4 ? 4 : len), tmp, byte_order);
+ len -= 4;
+ valbuf += 4;
+ }
+}
+
+/* Write into appropriate registers a function return value of type
+ TYPE, given in virtual format. */
+
+static void
+bfin_store_return_value (struct type *type,
+ struct regcache *regs,
+ const gdb_byte *src)
+{
+ const bfd_byte *valbuf = src;
+
+ /* Integral values greater than one word are stored in consecutive
+ registers starting with R0. This will always be a multiple of
+ the register size. */
+
+ int len = TYPE_LENGTH (type);
+ int regno = BFIN_R0_REGNUM;
+
+ gdb_assert (len <= 8);
+
+ while (len > 0)
+ {
+ regcache_cooked_write (regs, regno++, valbuf);
+ len -= 4;
+ valbuf += 4;
+ }
+}
+
+/* Determine, for architecture GDBARCH, how a return value of TYPE
+ should be returned. If it is supposed to be returned in registers,
+ and READBUF is nonzero, read the appropriate value from REGCACHE,
+ and copy it into READBUF. If WRITEBUF is nonzero, write the value
+ from WRITEBUF into REGCACHE. */
+
+static enum return_value_convention
+bfin_return_value (struct gdbarch *gdbarch,
+ struct type *func_type,
+ struct type *type,
+ struct regcache *regcache,
+ gdb_byte *readbuf,
+ const gdb_byte *writebuf)
+{
+ if (TYPE_LENGTH (type) > 8)
+ return RETURN_VALUE_STRUCT_CONVENTION;
+
+ if (readbuf)
+ bfin_extract_return_value (type, regcache, readbuf);
+
+ if (writebuf)
+ bfin_store_return_value (type, regcache, writebuf);
+
+ return RETURN_VALUE_REGISTER_CONVENTION;
+}
+
+/* Return the BFIN register name corresponding to register I. */
+
+static const char *
+bfin_register_name (struct gdbarch *gdbarch, int i)
+{
+ return bfin_register_name_strings[i];
+}
+
+static CORE_ADDR
+bfin_frame_base_address (struct frame_info *this_frame, void **this_cache)
+{
+ struct bfin_frame_cache *cache = bfin_frame_cache (this_frame, this_cache);
+
+ return cache->base;
+}
+
+static CORE_ADDR
+bfin_frame_local_address (struct frame_info *this_frame, void **this_cache)
+{
+ struct bfin_frame_cache *cache = bfin_frame_cache (this_frame, this_cache);
+
+ return cache->base - 4;
+}
+
+static CORE_ADDR
+bfin_frame_args_address (struct frame_info *this_frame, void **this_cache)
+{
+ struct bfin_frame_cache *cache = bfin_frame_cache (this_frame, this_cache);
+
+ return cache->base + 8;
+}
+
+static const struct frame_base bfin_frame_base =
+{
+ &bfin_frame_unwind,
+ bfin_frame_base_address,
+ bfin_frame_local_address,
+ bfin_frame_args_address
+};
+
+static struct frame_id
+bfin_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
+{
+ CORE_ADDR sp;
+
+ sp = get_frame_register_unsigned (this_frame, BFIN_SP_REGNUM);
+
+ return frame_id_build (sp, get_frame_pc (this_frame));
+}
+
+static CORE_ADDR
+bfin_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
+{
+ return frame_unwind_register_unsigned (next_frame, BFIN_PC_REGNUM);
+}
+
+static CORE_ADDR
+bfin_frame_align (struct gdbarch *gdbarch, CORE_ADDR address)
+{
+ return (address & ~0x3);
+}
+
+enum bfin_abi
+bfin_abi (struct gdbarch *gdbarch)
+{
+ return gdbarch_tdep (gdbarch)->bfin_abi;
+}
+
+/* Initialize the current architecture based on INFO. If possible,
+ re-use an architecture from ARCHES, which is a list of
+ architectures already created during this debugging session.
+
+ Called e.g. at program startup, when reading a core file, and when
+ reading a binary file. */
+
+static struct gdbarch *
+bfin_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
+{
+ struct gdbarch_tdep *tdep;
+ struct gdbarch *gdbarch;
+ int elf_flags;
+ enum bfin_abi abi;
+
+ /* Extract the ELF flags, if available. */
+ if (info.abfd && bfd_get_flavour (info.abfd) == bfd_target_elf_flavour)
+ elf_flags = elf_elfheader (info.abfd)->e_flags;
+ else
+ elf_flags = 0;
+
+ abi = BFIN_ABI_FLAT;
+
+ /* If there is already a candidate, use it. */
+
+ for (arches = gdbarch_list_lookup_by_info (arches, &info);
+ arches != NULL;
+ arches = gdbarch_list_lookup_by_info (arches->next, &info))
+ {
+ if (gdbarch_tdep (arches->gdbarch)->bfin_abi != abi)
+ continue;
+ return arches->gdbarch;
+ }
+
+ tdep = XMALLOC (struct gdbarch_tdep);
+ gdbarch = gdbarch_alloc (&info, tdep);
+
+ tdep->bfin_abi = abi;
+
+ set_gdbarch_num_regs (gdbarch, BFIN_NUM_REGS);
+ set_gdbarch_num_pseudo_regs (gdbarch, 0);
+ set_gdbarch_sp_regnum (gdbarch, BFIN_SP_REGNUM);
+ set_gdbarch_pc_regnum (gdbarch, BFIN_PC_REGNUM);
+ set_gdbarch_ps_regnum (gdbarch, BFIN_ASTAT_REGNUM);
+ set_gdbarch_dwarf2_reg_to_regnum (gdbarch, bfin_reg_to_regnum);
+ set_gdbarch_register_name (gdbarch, bfin_register_name);
+ set_gdbarch_register_type (gdbarch, bfin_register_type);
+ set_gdbarch_dummy_id (gdbarch, bfin_dummy_id);
+ set_gdbarch_push_dummy_call (gdbarch, bfin_push_dummy_call);
+ set_gdbarch_believe_pcc_promotion (gdbarch, 1);
+ set_gdbarch_return_value (gdbarch, bfin_return_value);
+ set_gdbarch_skip_prologue (gdbarch, bfin_skip_prologue);
+ set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
+ set_gdbarch_breakpoint_from_pc (gdbarch, bfin_breakpoint_from_pc);
+ set_gdbarch_decr_pc_after_break (gdbarch, 2);
+ set_gdbarch_frame_args_skip (gdbarch, 8);
+ set_gdbarch_unwind_pc (gdbarch, bfin_unwind_pc);
+ set_gdbarch_frame_align (gdbarch, bfin_frame_align);
+ set_gdbarch_print_insn (gdbarch, print_insn_bfin);
+
+ /* Hook in ABI-specific overrides, if they have been registered. */
+ gdbarch_init_osabi (info, gdbarch);
+
+ dwarf2_append_unwinders (gdbarch);
+
+ frame_base_set_default (gdbarch, &bfin_frame_base);
+
+ frame_unwind_append_unwinder (gdbarch, &bfin_frame_unwind);
+
+ return gdbarch;
+}
+
+void
+_initialize_bfin_tdep (void)
+{
+ register_gdbarch_init (bfd_arch_bfin, bfin_gdbarch_init);
+}
diff --git a/gdb/bfin-tdep.h b/gdb/bfin-tdep.h
new file mode 100644
index 0000000..11df07b
--- /dev/null
+++ b/gdb/bfin-tdep.h
@@ -0,0 +1,102 @@
+/* Target-dependent code for Analog Devices Blackfin processer, for GDB.
+
+ Copyright (C) 2005-2010 Free Software Foundation, Inc.
+ Contributed by Analog Devices.
+
+ 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/>. */
+
+enum gdb_regnum {
+ /* Core Registers */
+ BFIN_R0_REGNUM = 0,
+ BFIN_R1_REGNUM,
+ BFIN_R2_REGNUM,
+ BFIN_R3_REGNUM,
+ BFIN_R4_REGNUM,
+ BFIN_R5_REGNUM,
+ BFIN_R6_REGNUM,
+ BFIN_R7_REGNUM,
+ BFIN_P0_REGNUM,
+ BFIN_P1_REGNUM,
+ BFIN_P2_REGNUM,
+ BFIN_P3_REGNUM,
+ BFIN_P4_REGNUM,
+ BFIN_P5_REGNUM,
+ BFIN_SP_REGNUM,
+ BFIN_FP_REGNUM,
+ BFIN_I0_REGNUM,
+ BFIN_I1_REGNUM,
+ BFIN_I2_REGNUM,
+ BFIN_I3_REGNUM,
+ BFIN_M0_REGNUM,
+ BFIN_M1_REGNUM,
+ BFIN_M2_REGNUM,
+ BFIN_M3_REGNUM,
+ BFIN_B0_REGNUM,
+ BFIN_B1_REGNUM,
+ BFIN_B2_REGNUM,
+ BFIN_B3_REGNUM,
+ BFIN_L0_REGNUM,
+ BFIN_L1_REGNUM,
+ BFIN_L2_REGNUM,
+ BFIN_L3_REGNUM,
+ BFIN_A0_DOT_X_REGNUM,
+ BFIN_AO_DOT_W_REGNUM,
+ BFIN_A1_DOT_X_REGNUM,
+ BFIN_A1_DOT_W_REGNUM,
+ BFIN_ASTAT_REGNUM,
+ BFIN_RETS_REGNUM,
+ BFIN_LC0_REGNUM,
+ BFIN_LT0_REGNUM,
+ BFIN_LB0_REGNUM,
+ BFIN_LC1_REGNUM,
+ BFIN_LT1_REGNUM,
+ BFIN_LB1_REGNUM,
+ BFIN_CYCLES_REGNUM,
+ BFIN_CYCLES2_REGNUM,
+ BFIN_USP_REGNUM,
+ BFIN_SEQSTAT_REGNUM,
+ BFIN_SYSCFG_REGNUM,
+ BFIN_RETI_REGNUM,
+ BFIN_RETX_REGNUM,
+ BFIN_RETN_REGNUM,
+ BFIN_RETE_REGNUM,
+
+ /* Pseudo Registers */
+ BFIN_PC_REGNUM,
+ BFIN_CC_REGNUM,
+
+ /* LAST ENTRY SHOULD NOT BE CHANGED. */
+ BFIN_NUM_REGS /* The number of all registers. */
+};
+
+/* The ABIs for Blackfin. */
+enum bfin_abi
+{
+ BFIN_ABI_FLAT
+};
+
+/* Target-dependent structure in gdbarch. */
+struct gdbarch_tdep
+{
+ /* Which ABI is in use? */
+ enum bfin_abi bfin_abi;
+};
+
+/* in opcodes/bfin-dis.c */
+extern int print_insn_bfin (bfd_vma pc, struct disassemble_info *outf);
+
+/* Return the Blackfin ABI associated with GDBARCH. */
+extern enum bfin_abi bfin_abi (struct gdbarch *gdbarch);
diff --git a/gdb/configure.tgt b/gdb/configure.tgt
index 161cbdc..a4d2386 100644
--- a/gdb/configure.tgt
+++ b/gdb/configure.tgt
@@ -106,6 +106,11 @@ avr-*-*)
gdb_sim=../sim/avr/libsim.a
;;
+bfin-*-*)
+ # Target: Blackfin
+ gdb_target_obs="bfin-tdep.o bfin-linux-tdep.o linux-tdep.o"
+ ;;
+
cris*)
# Target: CRIS
gdb_target_obs="cris-tdep.o corelow.o solib.o solib-svr4.o"
diff --git a/gdb/syscalls/bfin-linux.xml b/gdb/syscalls/bfin-linux.xml
new file mode 100644
index 0000000..0fd3a96
--- /dev/null
+++ b/gdb/syscalls/bfin-linux.xml
@@ -0,0 +1,326 @@
+<?xml version="1.0"?>
+<!-- Copyright (C) 2010 Free Software Foundation, Inc.
+
+ Copying and distribution of this file, with or without modification,
+ are permitted in any medium without royalty provided the copyright
+ notice and this notice are preserved. -->
+
+<!DOCTYPE feature SYSTEM "gdb-syscalls.dtd">
+
+<!-- This file was generated using the following file:
+
+ gawk '$2 ~ /^__NR_/ { gsub(/__NR_/,""); print " <syscall name=\"" $2 "\" number=\"" $3 "\"/>" }'
+ /usr/src/linux/arch/blackfin/include/asm/unistd.h
+
+ The file mentioned above belongs to the Linux Kernel. -->
+
+<syscalls_info>
+ <syscall name="restart_syscall" number="0"/>
+ <syscall name="exit" number="1"/>
+ <syscall name="fork" number="2"/>
+ <syscall name="read" number="3"/>
+ <syscall name="write" number="4"/>
+ <syscall name="open" number="5"/>
+ <syscall name="close" number="6"/>
+ <syscall name="creat" number="8"/>
+ <syscall name="link" number="9"/>
+ <syscall name="unlink" number="10"/>
+ <syscall name="execve" number="11"/>
+ <syscall name="chdir" number="12"/>
+ <syscall name="time" number="13"/>
+ <syscall name="mknod" number="14"/>
+ <syscall name="chmod" number="15"/>
+ <syscall name="chown" number="16"/>
+ <syscall name="lseek" number="19"/>
+ <syscall name="getpid" number="20"/>
+ <syscall name="mount" number="21"/>
+ <syscall name="setuid" number="23"/>
+ <syscall name="getuid" number="24"/>
+ <syscall name="stime" number="25"/>
+ <syscall name="ptrace" number="26"/>
+ <syscall name="alarm" number="27"/>
+ <syscall name="pause" number="29"/>
+ <syscall name="access" number="33"/>
+ <syscall name="nice" number="34"/>
+ <syscall name="sync" number="36"/>
+ <syscall name="kill" number="37"/>
+ <syscall name="rename" number="38"/>
+ <syscall name="mkdir" number="39"/>
+ <syscall name="rmdir" number="40"/>
+ <syscall name="dup" number="41"/>
+ <syscall name="pipe" number="42"/>
+ <syscall name="times" number="43"/>
+ <syscall name="brk" number="45"/>
+ <syscall name="setgid" number="46"/>
+ <syscall name="getgid" number="47"/>
+ <syscall name="geteuid" number="49"/>
+ <syscall name="getegid" number="50"/>
+ <syscall name="acct" number="51"/>
+ <syscall name="umount2" number="52"/>
+ <syscall name="ioctl" number="54"/>
+ <syscall name="fcntl" number="55"/>
+ <syscall name="setpgid" number="57"/>
+ <syscall name="umask" number="60"/>
+ <syscall name="chroot" number="61"/>
+ <syscall name="ustat" number="62"/>
+ <syscall name="dup2" number="63"/>
+ <syscall name="getppid" number="64"/>
+ <syscall name="getpgrp" number="65"/>
+ <syscall name="setsid" number="66"/>
+ <syscall name="sgetmask" number="68"/>
+ <syscall name="ssetmask" number="69"/>
+ <syscall name="setreuid" number="70"/>
+ <syscall name="setregid" number="71"/>
+ <syscall name="sethostname" number="74"/>
+ <syscall name="setrlimit" number="75"/>
+ <syscall name="getrusage" number="77"/>
+ <syscall name="gettimeofday" number="78"/>
+ <syscall name="settimeofday" number="79"/>
+ <syscall name="getgroups" number="80"/>
+ <syscall name="setgroups" number="81"/>
+ <syscall name="symlink" number="83"/>
+ <syscall name="readlink" number="85"/>
+ <syscall name="reboot" number="88"/>
+ <syscall name="munmap" number="91"/>
+ <syscall name="truncate" number="92"/>
+ <syscall name="ftruncate" number="93"/>
+ <syscall name="fchmod" number="94"/>
+ <syscall name="fchown" number="95"/>
+ <syscall name="getpriority" number="96"/>
+ <syscall name="setpriority" number="97"/>
+ <syscall name="statfs" number="99"/>
+ <syscall name="fstatfs" number="100"/>
+ <syscall name="syslog" number="103"/>
+ <syscall name="setitimer" number="104"/>
+ <syscall name="getitimer" number="105"/>
+ <syscall name="stat" number="106"/>
+ <syscall name="lstat" number="107"/>
+ <syscall name="fstat" number="108"/>
+ <syscall name="vhangup" number="111"/>
+ <syscall name="wait4" number="114"/>
+ <syscall name="sysinfo" number="116"/>
+ <syscall name="fsync" number="118"/>
+ <syscall name="clone" number="120"/>
+ <syscall name="setdomainname" number="121"/>
+ <syscall name="uname" number="122"/>
+ <syscall name="adjtimex" number="124"/>
+ <syscall name="mprotect" number="125"/>
+ <syscall name="init_module" number="128"/>
+ <syscall name="delete_module" number="129"/>
+ <syscall name="quotactl" number="131"/>
+ <syscall name="getpgid" number="132"/>
+ <syscall name="fchdir" number="133"/>
+ <syscall name="bdflush" number="134"/>
+ <syscall name="personality" number="136"/>
+ <syscall name="setfsuid" number="138"/>
+ <syscall name="setfsgid" number="139"/>
+ <syscall name="_llseek" number="140"/>
+ <syscall name="getdents" number="141"/>
+ <syscall name="flock" number="143"/>
+ <syscall name="readv" number="145"/>
+ <syscall name="writev" number="146"/>
+ <syscall name="getsid" number="147"/>
+ <syscall name="fdatasync" number="148"/>
+ <syscall name="_sysctl" number="149"/>
+ <syscall name="sched_setparam" number="154"/>
+ <syscall name="sched_getparam" number="155"/>
+ <syscall name="sched_setscheduler" number="156"/>
+ <syscall name="sched_getscheduler" number="157"/>
+ <syscall name="sched_yield" number="158"/>
+ <syscall name="sched_get_priority_max" number="159"/>
+ <syscall name="sched_get_priority_min" number="160"/>
+ <syscall name="sched_rr_get_interval" number="161"/>
+ <syscall name="nanosleep" number="162"/>
+ <syscall name="mremap" number="163"/>
+ <syscall name="setresuid" number="164"/>
+ <syscall name="getresuid" number="165"/>
+ <syscall name="nfsservctl" number="169"/>
+ <syscall name="setresgid" number="170"/>
+ <syscall name="getresgid" number="171"/>
+ <syscall name="prctl" number="172"/>
+ <syscall name="rt_sigreturn" number="173"/>
+ <syscall name="rt_sigaction" number="174"/>
+ <syscall name="rt_sigprocmask" number="175"/>
+ <syscall name="rt_sigpending" number="176"/>
+ <syscall name="rt_sigtimedwait" number="177"/>
+ <syscall name="rt_sigqueueinfo" number="178"/>
+ <syscall name="rt_sigsuspend" number="179"/>
+ <syscall name="pread" number="180"/>
+ <syscall name="pwrite" number="181"/>
+ <syscall name="lchown" number="182"/>
+ <syscall name="getcwd" number="183"/>
+ <syscall name="capget" number="184"/>
+ <syscall name="capset" number="185"/>
+ <syscall name="sigaltstack" number="186"/>
+ <syscall name="sendfile" number="187"/>
+ <syscall name="vfork" number="190"/>
+ <syscall name="getrlimit" number="191"/>
+ <syscall name="mmap2" number="192"/>
+ <syscall name="truncate64" number="193"/>
+ <syscall name="ftruncate64" number="194"/>
+ <syscall name="stat64" number="195"/>
+ <syscall name="lstat64" number="196"/>
+ <syscall name="fstat64" number="197"/>
+ <syscall name="chown32" number="198"/>
+ <syscall name="getuid32" number="199"/>
+ <syscall name="getgid32" number="200"/>
+ <syscall name="geteuid32" number="201"/>
+ <syscall name="getegid32" number="202"/>
+ <syscall name="setreuid32" number="203"/>
+ <syscall name="setregid32" number="204"/>
+ <syscall name="getgroups32" number="205"/>
+ <syscall name="setgroups32" number="206"/>
+ <syscall name="fchown32" number="207"/>
+ <syscall name="setresuid32" number="208"/>
+ <syscall name="getresuid32" number="209"/>
+ <syscall name="setresgid32" number="210"/>
+ <syscall name="getresgid32" number="211"/>
+ <syscall name="lchown32" number="212"/>
+ <syscall name="setuid32" number="213"/>
+ <syscall name="setgid32" number="214"/>
+ <syscall name="setfsuid32" number="215"/>
+ <syscall name="setfsgid32" number="216"/>
+ <syscall name="pivot_root" number="217"/>
+ <syscall name="getdents64" number="220"/>
+ <syscall name="fcntl64" number="221"/>
+ <syscall name="gettid" number="224"/>
+ <syscall name="readahead" number="225"/>
+ <syscall name="setxattr" number="226"/>
+ <syscall name="lsetxattr" number="227"/>
+ <syscall name="fsetxattr" number="228"/>
+ <syscall name="getxattr" number="229"/>
+ <syscall name="lgetxattr" number="230"/>
+ <syscall name="fgetxattr" number="231"/>
+ <syscall name="listxattr" number="232"/>
+ <syscall name="llistxattr" number="233"/>
+ <syscall name="flistxattr" number="234"/>
+ <syscall name="removexattr" number="235"/>
+ <syscall name="lremovexattr" number="236"/>
+ <syscall name="fremovexattr" number="237"/>
+ <syscall name="tkill" number="238"/>
+ <syscall name="sendfile64" number="239"/>
+ <syscall name="futex" number="240"/>
+ <syscall name="sched_setaffinity" number="241"/>
+ <syscall name="sched_getaffinity" number="242"/>
+ <syscall name="io_setup" number="245"/>
+ <syscall name="io_destroy" number="246"/>
+ <syscall name="io_getevents" number="247"/>
+ <syscall name="io_submit" number="248"/>
+ <syscall name="io_cancel" number="249"/>
+ <syscall name="exit_group" number="252"/>
+ <syscall name="lookup_dcookie" number="253"/>
+ <syscall name="bfin_spinlock" number="254"/>
+ <syscall name="epoll_create" number="255"/>
+ <syscall name="epoll_ctl" number="256"/>
+ <syscall name="epoll_wait" number="257"/>
+ <syscall name="set_tid_address" number="259"/>
+ <syscall name="timer_create" number="260"/>
+ <syscall name="timer_settime" number="261"/>
+ <syscall name="timer_gettime" number="262"/>
+ <syscall name="timer_getoverrun" number="263"/>
+ <syscall name="timer_delete" number="264"/>
+ <syscall name="clock_settime" number="265"/>
+ <syscall name="clock_gettime" number="266"/>
+ <syscall name="clock_getres" number="267"/>
+ <syscall name="clock_nanosleep" number="268"/>
+ <syscall name="statfs64" number="269"/>
+ <syscall name="fstatfs64" number="270"/>
+ <syscall name="tgkill" number="271"/>
+ <syscall name="utimes" number="272"/>
+ <syscall name="fadvise64_64" number="273"/>
+ <syscall name="mq_open" number="278"/>
+ <syscall name="mq_unlink" number="279"/>
+ <syscall name="mq_timedsend" number="280"/>
+ <syscall name="mq_timedreceive" number="281"/>
+ <syscall name="mq_notify" number="282"/>
+ <syscall name="mq_getsetattr" number="283"/>
+ <syscall name="kexec_load" number="284"/>
+ <syscall name="waitid" number="285"/>
+ <syscall name="add_key" number="286"/>
+ <syscall name="request_key" number="287"/>
+ <syscall name="keyctl" number="288"/>
+ <syscall name="ioprio_set" number="289"/>
+ <syscall name="ioprio_get" number="290"/>
+ <syscall name="inotify_init" number="291"/>
+ <syscall name="inotify_add_watch" number="292"/>
+ <syscall name="inotify_rm_watch" number="293"/>
+ <syscall name="openat" number="295"/>
+ <syscall name="mkdirat" number="296"/>
+ <syscall name="mknodat" number="297"/>
+ <syscall name="fchownat" number="298"/>
+ <syscall name="futimesat" number="299"/>
+ <syscall name="fstatat64" number="300"/>
+ <syscall name="unlinkat" number="301"/>
+ <syscall name="renameat" number="302"/>
+ <syscall name="linkat" number="303"/>
+ <syscall name="symlinkat" number="304"/>
+ <syscall name="readlinkat" number="305"/>
+ <syscall name="fchmodat" number="306"/>
+ <syscall name="faccessat" number="307"/>
+ <syscall name="pselect6" number="308"/>
+ <syscall name="ppoll" number="309"/>
+ <syscall name="unshare" number="310"/>
+ <syscall name="sram_alloc" number="311"/>
+ <syscall name="sram_free" number="312"/>
+ <syscall name="dma_memcpy" number="313"/>
+ <syscall name="accept" number="314"/>
+ <syscall name="bind" number="315"/>
+ <syscall name="connect" number="316"/>
+ <syscall name="getpeername" number="317"/>
+ <syscall name="getsockname" number="318"/>
+ <syscall name="getsockopt" number="319"/>
+ <syscall name="listen" number="320"/>
+ <syscall name="recv" number="321"/>
+ <syscall name="recvfrom" number="322"/>
+ <syscall name="recvmsg" number="323"/>
+ <syscall name="send" number="324"/>
+ <syscall name="sendmsg" number="325"/>
+ <syscall name="sendto" number="326"/>
+ <syscall name="setsockopt" number="327"/>
+ <syscall name="shutdown" number="328"/>
+ <syscall name="socket" number="329"/>
+ <syscall name="socketpair" number="330"/>
+ <syscall name="semctl" number="331"/>
+ <syscall name="semget" number="332"/>
+ <syscall name="semop" number="333"/>
+ <syscall name="msgctl" number="334"/>
+ <syscall name="msgget" number="335"/>
+ <syscall name="msgrcv" number="336"/>
+ <syscall name="msgsnd" number="337"/>
+ <syscall name="shmat" number="338"/>
+ <syscall name="shmctl" number="339"/>
+ <syscall name="shmdt" number="340"/>
+ <syscall name="shmget" number="341"/>
+ <syscall name="splice" number="342"/>
+ <syscall name="sync_file_range" number="343"/>
+ <syscall name="tee" number="344"/>
+ <syscall name="vmsplice" number="345"/>
+ <syscall name="epoll_pwait" number="346"/>
+ <syscall name="utimensat" number="347"/>
+ <syscall name="signalfd" number="348"/>
+ <syscall name="timerfd_create" number="349"/>
+ <syscall name="eventfd" number="350"/>
+ <syscall name="pread64" number="351"/>
+ <syscall name="pwrite64" number="352"/>
+ <syscall name="fadvise64" number="353"/>
+ <syscall name="set_robust_list" number="354"/>
+ <syscall name="get_robust_list" number="355"/>
+ <syscall name="fallocate" number="356"/>
+ <syscall name="semtimedop" number="357"/>
+ <syscall name="timerfd_settime" number="358"/>
+ <syscall name="timerfd_gettime" number="359"/>
+ <syscall name="signalfd4" number="360"/>
+ <syscall name="eventfd2" number="361"/>
+ <syscall name="epoll_create1" number="362"/>
+ <syscall name="dup3" number="363"/>
+ <syscall name="pipe2" number="364"/>
+ <syscall name="inotify_init1" number="365"/>
+ <syscall name="preadv" number="366"/>
+ <syscall name="pwritev" number="367"/>
+ <syscall name="rt_tgsigqueueinfo" number="368"/>
+ <syscall name="perf_event_open" number="369"/>
+ <syscall name="recvmmsg" number="370"/>
+ <syscall name="fanotify_init" number="371"/>
+ <syscall name="fanotify_mark" number="372"/>
+ <syscall name="prlimit64" number="373"/>
+</syscalls_info>
--
1.7.3.1
^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH v4] gdbserver: bfin: new port
2010-12-15 16:48 [PATCH v4] gdb: bfin: new port Mike Frysinger
@ 2010-12-15 16:48 ` Mike Frysinger
2010-12-15 19:21 ` Pedro Alves
2010-12-15 19:17 ` [PATCH v4] gdb: " Pedro Alves
1 sibling, 1 reply; 7+ messages in thread
From: Mike Frysinger @ 2010-12-15 16:48 UTC (permalink / raw)
To: gdb-patches; +Cc: toolchain-devel, Jie Zhang
From: Jie Zhang <jie.zhang@analog.com>
Signed-off-by: Jie Zhang <jie.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
gdb/:
2010-12-15 Jie Zhang <jie.zhang@analog.com>
* configure.tgt (bfin-*-*): Set build_gdbserver to yes.
* NEWS: Mention new Blackfin support.
* regformats/reg-bfin.dat: New file.
gdbserver/:
2010-12-15 Jie Zhang <jie.zhang@analog.com>
* configure.srv (bfin-*-*linux*): Handle Blackfin/Linux targets.
* linux-bfin-low.c: New file.
* linux-low.c: Define PT_TEXT_ADDR, PT_TEXT_END_ADDR, and
PT_DATA_ADDR for BFIN targets.
* Makefile.in (SFILES): Add linux-bfin-low.c.
(clean): Remove reg-bfin.c.
(linux-bfin-low.o, reg-bfin.o, reg-bfin.c): New targets.
* README: Mention supported Blackfin targets.
---
v4
- drop all mention of pseudo flat/fdpic registers
- restrict valid targets to bfin/linux
gdb/NEWS | 2 +
gdb/configure.tgt | 1 +
gdb/gdbserver/Makefile.in | 10 +++-
gdb/gdbserver/README | 2 +
gdb/gdbserver/configure.srv | 5 ++
gdb/gdbserver/linux-bfin-low.c | 108 ++++++++++++++++++++++++++++++++++++++++
gdb/gdbserver/linux-low.c | 4 ++
gdb/regformats/reg-bfin.dat | 57 +++++++++++++++++++++
8 files changed, 186 insertions(+), 3 deletions(-)
create mode 100644 gdb/gdbserver/linux-bfin-low.c
create mode 100644 gdb/regformats/reg-bfin.dat
diff --git a/gdb/NEWS b/gdb/NEWS
index 633338a..ba60ae5 100644
--- a/gdb/NEWS
+++ b/gdb/NEWS
@@ -108,6 +108,8 @@
** GDBserver is now supported on PowerPC LynxOS (versions 4.x and 5.x),
and i686 LynxOS (version 5.x).
+ ** GDBserver is now supported on Blackfin Linux.
+
* New targets:
Analog Devices, Inc. Blackfin Processor bfin-*
diff --git a/gdb/configure.tgt b/gdb/configure.tgt
index a4d2386..37a257d 100644
--- a/gdb/configure.tgt
+++ b/gdb/configure.tgt
@@ -109,6 +109,7 @@ avr-*-*)
bfin-*-*)
# Target: Blackfin
gdb_target_obs="bfin-tdep.o bfin-linux-tdep.o linux-tdep.o"
+ build_gdbserver=yes
;;
cris*)
diff --git a/gdb/gdbserver/Makefile.in b/gdb/gdbserver/Makefile.in
index 7cf68da..44187eb 100644
--- a/gdb/gdbserver/Makefile.in
+++ b/gdb/gdbserver/Makefile.in
@@ -111,8 +111,8 @@ SFILES= $(srcdir)/gdbreplay.c $(srcdir)/inferiors.c \
$(srcdir)/proc-service.list $(srcdir)/regcache.c \
$(srcdir)/remote-utils.c $(srcdir)/server.c $(srcdir)/target.c \
$(srcdir)/thread-db.c $(srcdir)/utils.c \
- $(srcdir)/linux-arm-low.c $(srcdir)/linux-cris-low.c \
- $(srcdir)/linux-crisv32-low.c \
+ $(srcdir)/linux-arm-low.c $(srcdir)/linux-bfin-low.c \
+ $(srcdir)/linux-cris-low.c $(srcdir)/linux-crisv32-low.c \
${srcdir}/i386-low.c $(srcdir)/i387-fp.c \
$(srcdir)/linux-ia64-low.c $(srcdir)/linux-low.c \
$(srcdir)/linux-m32r-low.c \
@@ -263,7 +263,7 @@ clean:
rm -f version.c
rm -f gdbserver$(EXEEXT) gdbreplay$(EXEEXT) core make.log
rm -f $(IPA_LIB)
- rm -f reg-arm.c i386.c reg-ia64.c reg-m32r.c reg-m68k.c
+ rm -f reg-arm.c reg-bfin.c i386.c reg-ia64.c reg-m32r.c reg-m68k.c
rm -f reg-sh.c reg-sparc.c reg-spu.c amd64.c i386-linux.c
rm -f reg-cris.c reg-crisv32.c amd64-linux.c reg-xtensa.c
rm -f arm-with-iwmmxt.c
@@ -413,6 +413,7 @@ linux-low.o: linux-low.c $(linux_low_h) $(server_h)
linux-arm-low.o: linux-arm-low.c $(linux_low_h) $(server_h) \
$(gdb_proc_service_h)
+linux-bfin-low.o: linux-bfin-low.c $(linux_low_h) $(server_h)
linux-cris-low.o: linux-cris-low.c $(linux_low_h) $(server_h)
linux-crisv32-low.o: linux-crisv32-low.c $(linux_low_h) $(server_h)
linux-ia64-low.o: linux-ia64-low.c $(linux_low_h) $(server_h)
@@ -455,6 +456,9 @@ arm-with-vfpv3.c : $(srcdir)/../regformats/arm-with-vfpv3.dat $(regdat_sh)
arm-with-neon.o : arm-with-neon.c $(regdef_h)
arm-with-neon.c : $(srcdir)/../regformats/arm-with-neon.dat $(regdat_sh)
$(SHELL) $(regdat_sh) $(srcdir)/../regformats/arm-with-neon.dat arm-with-neon.c
+reg-bfin.o : reg-bfin.c $(regdef_h)
+reg-bfin.c : $(srcdir)/../regformats/reg-bfin.dat $(regdat_sh)
+ $(SHELL) $(regdat_sh) $(srcdir)/../regformats/reg-bfin.dat reg-bfin.c
reg-cris.o : reg-cris.c $(regdef_h)
reg-cris.c : $(srcdir)/../regformats/reg-cris.dat $(regdat_sh)
$(SHELL) $(regdat_sh) $(srcdir)/../regformats/reg-cris.dat reg-cris.c
diff --git a/gdb/gdbserver/README b/gdb/gdbserver/README
index 6debbd8..3eaeb61 100644
--- a/gdb/gdbserver/README
+++ b/gdb/gdbserver/README
@@ -81,6 +81,8 @@ Building GDBserver:
The supported targets as of November 2006 are:
arm-*-linux*
+ bfin-*-uclinux
+ bfin-*-linux-uclibc
crisv32-*-linux*
cris-*-linux*
i[34567]86-*-cygwin*
diff --git a/gdb/gdbserver/configure.srv b/gdb/gdbserver/configure.srv
index 1e8fa30..d6110dd 100644
--- a/gdb/gdbserver/configure.srv
+++ b/gdb/gdbserver/configure.srv
@@ -67,6 +67,11 @@ case "${target}" in
srv_mingw=yes
srv_mingwce=yes
;;
+ bfin-*-*linux*) srv_regobj=reg-bfin.o
+ srv_tgtobj="linux-low.o linux-bfin-low.o"
+ srv_linux_usrregs=yes
+ srv_linux_thread_db=yes
+ ;;
crisv32-*-linux*) srv_regobj=reg-crisv32.o
srv_tgtobj="linux-low.o linux-crisv32-low.o"
srv_linux_regsets=yes
diff --git a/gdb/gdbserver/linux-bfin-low.c b/gdb/gdbserver/linux-bfin-low.c
new file mode 100644
index 0000000..ce40dea
--- /dev/null
+++ b/gdb/gdbserver/linux-bfin-low.c
@@ -0,0 +1,108 @@
+/* GNU/Linux/BFIN specific low level interface, for the remote server for GDB.
+
+ Copyright (C) 2005-2010 Free Software Foundation, Inc.
+ Contributed by Analog Devices.
+
+ 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 "server.h"
+#include "linux-low.h"
+#include "libiberty.h"
+#include <asm/ptrace.h>
+
+/* Defined in auto-generated file reg-bfin.c. */
+void init_registers_bfin (void);
+
+static int bfin_regmap[] =
+{
+ PT_R0, PT_R1, PT_R2, PT_R3, PT_R4, PT_R5, PT_R6, PT_R7,
+ PT_P0, PT_P1, PT_P2, PT_P3, PT_P4, PT_P5, PT_USP, PT_FP,
+ PT_I0, PT_I1, PT_I2, PT_I3, PT_M0, PT_M1, PT_M2, PT_M3,
+ PT_B0, PT_B1, PT_B2, PT_B3, PT_L0, PT_L1, PT_L2, PT_L3,
+ PT_A0X, PT_A0W, PT_A1X, PT_A1W, PT_ASTAT, PT_RETS,
+ PT_LC0, PT_LT0, PT_LB0, PT_LC1, PT_LT1, PT_LB1,
+ -1 /* PT_CYCLES */, -1 /* PT_CYCLES2 */,
+ -1 /* PT_USP */, PT_SEQSTAT, PT_SYSCFG, PT_PC, PT_RETX, PT_RETN, PT_RETE,
+ PT_PC, -1 /* PT_CC */,
+ /* FLAT: PT_TEXT_ADDR, PT_TEXT_END_ADDR, PT_DATA_ADDR, */
+ /* FDPIC: PT_FDPIC_EXEC PT_FDPIC_INTERP, */
+ /* MISC: PT_IPEND */
+};
+
+#define bfin_num_regs ARRAY_SIZE (bfin_regmap)
+
+static int
+bfin_cannot_store_register (int regno)
+{
+ return (regno >= bfin_num_regs);
+}
+
+static int
+bfin_cannot_fetch_register (int regno)
+{
+ return (regno >= bfin_num_regs);
+}
+
+static CORE_ADDR
+bfin_get_pc (struct regcache *regcache)
+{
+ unsigned long pc;
+
+ collect_register_by_name (regcache, "pc", &pc);
+
+ return pc;
+}
+
+static void
+bfin_set_pc (struct regcache *regcache, CORE_ADDR pc)
+{
+ unsigned long newpc = pc;
+
+ supply_register_by_name (regcache, "pc", &newpc);
+}
+
+#define bfin_breakpoint_len 2
+static const unsigned char bfin_breakpoint[bfin_breakpoint_len] = {0xa1, 0x00};
+
+static int
+bfin_breakpoint_at (CORE_ADDR where)
+{
+ unsigned char insn[bfin_breakpoint_len];
+
+ read_inferior_memory(where, insn, bfin_breakpoint_len);
+ if (insn[0] == bfin_breakpoint[0]
+ && insn[1] == bfin_breakpoint[1])
+ return 1;
+
+ /* If necessary, recognize more trap instructions here. GDB only uses the
+ one. */
+ return 0;
+}
+
+struct linux_target_ops the_low_target = {
+ init_registers_bfin,
+ bfin_num_regs,
+ bfin_regmap,
+ bfin_cannot_fetch_register,
+ bfin_cannot_store_register,
+ bfin_get_pc,
+ bfin_set_pc,
+ bfin_breakpoint,
+ bfin_breakpoint_len,
+ 0,
+ 2,
+ bfin_breakpoint_at,
+};
diff --git a/gdb/gdbserver/linux-low.c b/gdb/gdbserver/linux-low.c
index c65ce54..75fe905 100644
--- a/gdb/gdbserver/linux-low.c
+++ b/gdb/gdbserver/linux-low.c
@@ -4373,6 +4373,10 @@ linux_stopped_data_address (void)
#define PT_TEXT_ADDR 49*4
#define PT_DATA_ADDR 50*4
#define PT_TEXT_END_ADDR 51*4
+#elif defined(BFIN)
+#define PT_TEXT_ADDR 220
+#define PT_TEXT_END_ADDR 224
+#define PT_DATA_ADDR 228
#endif
/* Under uClinux, programs are loaded at non-zero offsets, which we need
diff --git a/gdb/regformats/reg-bfin.dat b/gdb/regformats/reg-bfin.dat
new file mode 100644
index 0000000..52f7826
--- /dev/null
+++ b/gdb/regformats/reg-bfin.dat
@@ -0,0 +1,57 @@
+name:bfin
+expedite:pc,sp,fp
+32:r0
+32:r1
+32:r2
+32:r3
+32:r4
+32:r5
+32:r6
+32:r7
+32:p0
+32:p1
+32:p2
+32:p3
+32:p4
+32:p5
+32:sp
+32:fp
+32:i0
+32:i1
+32:i2
+32:i3
+32:m0
+32:m1
+32:m2
+32:m3
+32:b0
+32:b1
+32:b2
+32:b3
+32:l0
+32:l1
+32:l2
+32:l3
+32:a0x
+32:a0w
+32:a1x
+32:a1w
+32:astat
+32:rets
+32:lc0
+32:lt0
+32:lb0
+32:lc1
+32:lt1
+32:lb1
+32:cycles
+32:cycles2
+32:usp
+32:seqstat
+32:syscfg
+32:reti
+32:retx
+32:retn
+32:rete
+32:pc
+32:cc
--
1.7.3.1
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v4] gdb: bfin: new port
2010-12-15 16:48 [PATCH v4] gdb: bfin: new port Mike Frysinger
2010-12-15 16:48 ` [PATCH v4] gdbserver: " Mike Frysinger
@ 2010-12-15 19:17 ` Pedro Alves
2010-12-15 19:40 ` Mike Frysinger
1 sibling, 1 reply; 7+ messages in thread
From: Pedro Alves @ 2010-12-15 19:17 UTC (permalink / raw)
To: gdb-patches; +Cc: Mike Frysinger, toolchain-devel, Jie Zhang
On Wednesday 15 December 2010 16:47:25, Mike Frysinger wrote:
> Signed-off-by: Jie Zhang <jie.zhang@analog.com>
> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
>
> 2010-12-15 Jie Zhang <jie.zhang@analog.com>
>
Should really be, IMO:
2010-12-15 Jie Zhang <jie.zhang@analog.com>
Mike Frysinger <vapier@gentoo.org>
> +bfin-*-*)
> + # Target: Blackfin
> + gdb_target_obs="bfin-tdep.o bfin-linux-tdep.o linux-tdep.o"
> + ;;
should probably be:
bfin-*-uclinux*)
# Target: Blackfin running uclinux
gdb_target_obs="bfin-tdep.o bfin-linux-tdep.o linux-tdep.o"
;;
bfin-*-*)
# Target: Blackfin
gdb_target_obs="bfin-tdep.o"
;;
The top-level src/configure.ac seems to actually use
bfin*-*-uclinux* (extra star).
You should update the triplets in the NEWS entry as well.
> +void
> +_initialize_bfin_tdep (void)
Needs a prototype:
/* Provide a prototype to silence -Wmissing-prototypes. */
extern initialize_file_ftype _initialize_bfin_tdep;
There's the equivalent one in bfin-linux-tdep.c, but you're missing it
in bfin-tdep.c.
> + warning (_("Function Prologue not recognised; pc will point to ENTRY_POINT of the function"));
way too long line. write as, e.g.,
warning (_("Function Prologue not recognised; "
"pc will point to ENTRY_POINT of the function"));
> + /* initialize R0, R1 and R2 to the first 3 words of paramters */
/* Initialize R0, R1 and R2 to the first 3 words of paramters. */
Capitalize, typo, period, double space.
> +/* Target-dependent code for Analog Devices Blackfin processer, for GDB.
typo: processor
> + Copyright (C) 2005-2010 Free Software Foundation, Inc.
I don't think we can use an year range in our sources:
<http://www.gnu.org/prep/maintain/maintain.html#Copyright-Notices>:
"You can use a range (‘2008-2010’) instead of listing individual
years (‘2008, 2009, 2010’) if and only if: 1) every year in the range, inclusive,
really is a “copyrightable” year that would be listed individually; and 2) you
make an explicit statement in a ‘README’ file about this usage. "
I think we fail point #2. I see no other use of an year range
in the sources.
b/gdb/bfin-tdep.h:
> +/* in opcodes/bfin-dis.c */
> +extern int print_insn_bfin (bfd_vma pc, struct disassemble_info *outf);
Please remove this. It is declared in src/include/dis-asm.h.
Otherwise, with the astat/cc change, this looks good to me.
--
Pedro Alves
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v4] gdbserver: bfin: new port
2010-12-15 16:48 ` [PATCH v4] gdbserver: " Mike Frysinger
@ 2010-12-15 19:21 ` Pedro Alves
0 siblings, 0 replies; 7+ messages in thread
From: Pedro Alves @ 2010-12-15 19:21 UTC (permalink / raw)
To: gdb-patches; +Cc: Mike Frysinger, toolchain-devel, Jie Zhang
Looks okay, with the cc register removed. I'd prefer if you wacked away
the unimplemented registers rather than leaving them commented out
behind.
(Some of the minor comments to be gdb patch apply here as well, and
I won't repeat them.)
--
Pedro Alves
On Wednesday 15 December 2010 16:47:26, Mike Frysinger wrote:
> From: Jie Zhang <jie.zhang@analog.com>
>
> Signed-off-by: Jie Zhang <jie.zhang@analog.com>
> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
>
> gdb/:
> 2010-12-15 Jie Zhang <jie.zhang@analog.com>
>
> * configure.tgt (bfin-*-*): Set build_gdbserver to yes.
> * NEWS: Mention new Blackfin support.
> * regformats/reg-bfin.dat: New file.
>
> gdbserver/:
> 2010-12-15 Jie Zhang <jie.zhang@analog.com>
>
> * configure.srv (bfin-*-*linux*): Handle Blackfin/Linux targets.
> * linux-bfin-low.c: New file.
> * linux-low.c: Define PT_TEXT_ADDR, PT_TEXT_END_ADDR, and
> PT_DATA_ADDR for BFIN targets.
> * Makefile.in (SFILES): Add linux-bfin-low.c.
> (clean): Remove reg-bfin.c.
> (linux-bfin-low.o, reg-bfin.o, reg-bfin.c): New targets.
> * README: Mention supported Blackfin targets.
> ---
> v4
> - drop all mention of pseudo flat/fdpic registers
> - restrict valid targets to bfin/linux
>
> gdb/NEWS | 2 +
> gdb/configure.tgt | 1 +
> gdb/gdbserver/Makefile.in | 10 +++-
> gdb/gdbserver/README | 2 +
> gdb/gdbserver/configure.srv | 5 ++
> gdb/gdbserver/linux-bfin-low.c | 108 ++++++++++++++++++++++++++++++++++++++++
> gdb/gdbserver/linux-low.c | 4 ++
> gdb/regformats/reg-bfin.dat | 57 +++++++++++++++++++++
> 8 files changed, 186 insertions(+), 3 deletions(-)
> create mode 100644 gdb/gdbserver/linux-bfin-low.c
> create mode 100644 gdb/regformats/reg-bfin.dat
>
> diff --git a/gdb/NEWS b/gdb/NEWS
> index 633338a..ba60ae5 100644
> --- a/gdb/NEWS
> +++ b/gdb/NEWS
> @@ -108,6 +108,8 @@
> ** GDBserver is now supported on PowerPC LynxOS (versions 4.x and 5.x),
> and i686 LynxOS (version 5.x).
>
> + ** GDBserver is now supported on Blackfin Linux.
> +
> * New targets:
>
> Analog Devices, Inc. Blackfin Processor bfin-*
> diff --git a/gdb/configure.tgt b/gdb/configure.tgt
> index a4d2386..37a257d 100644
> --- a/gdb/configure.tgt
> +++ b/gdb/configure.tgt
> @@ -109,6 +109,7 @@ avr-*-*)
> bfin-*-*)
> # Target: Blackfin
> gdb_target_obs="bfin-tdep.o bfin-linux-tdep.o linux-tdep.o"
> + build_gdbserver=yes
> ;;
>
> cris*)
> diff --git a/gdb/gdbserver/Makefile.in b/gdb/gdbserver/Makefile.in
> index 7cf68da..44187eb 100644
> --- a/gdb/gdbserver/Makefile.in
> +++ b/gdb/gdbserver/Makefile.in
> @@ -111,8 +111,8 @@ SFILES= $(srcdir)/gdbreplay.c $(srcdir)/inferiors.c \
> $(srcdir)/proc-service.list $(srcdir)/regcache.c \
> $(srcdir)/remote-utils.c $(srcdir)/server.c $(srcdir)/target.c \
> $(srcdir)/thread-db.c $(srcdir)/utils.c \
> - $(srcdir)/linux-arm-low.c $(srcdir)/linux-cris-low.c \
> - $(srcdir)/linux-crisv32-low.c \
> + $(srcdir)/linux-arm-low.c $(srcdir)/linux-bfin-low.c \
> + $(srcdir)/linux-cris-low.c $(srcdir)/linux-crisv32-low.c \
> ${srcdir}/i386-low.c $(srcdir)/i387-fp.c \
> $(srcdir)/linux-ia64-low.c $(srcdir)/linux-low.c \
> $(srcdir)/linux-m32r-low.c \
> @@ -263,7 +263,7 @@ clean:
> rm -f version.c
> rm -f gdbserver$(EXEEXT) gdbreplay$(EXEEXT) core make.log
> rm -f $(IPA_LIB)
> - rm -f reg-arm.c i386.c reg-ia64.c reg-m32r.c reg-m68k.c
> + rm -f reg-arm.c reg-bfin.c i386.c reg-ia64.c reg-m32r.c reg-m68k.c
> rm -f reg-sh.c reg-sparc.c reg-spu.c amd64.c i386-linux.c
> rm -f reg-cris.c reg-crisv32.c amd64-linux.c reg-xtensa.c
> rm -f arm-with-iwmmxt.c
> @@ -413,6 +413,7 @@ linux-low.o: linux-low.c $(linux_low_h) $(server_h)
>
> linux-arm-low.o: linux-arm-low.c $(linux_low_h) $(server_h) \
> $(gdb_proc_service_h)
> +linux-bfin-low.o: linux-bfin-low.c $(linux_low_h) $(server_h)
> linux-cris-low.o: linux-cris-low.c $(linux_low_h) $(server_h)
> linux-crisv32-low.o: linux-crisv32-low.c $(linux_low_h) $(server_h)
> linux-ia64-low.o: linux-ia64-low.c $(linux_low_h) $(server_h)
> @@ -455,6 +456,9 @@ arm-with-vfpv3.c : $(srcdir)/../regformats/arm-with-vfpv3.dat $(regdat_sh)
> arm-with-neon.o : arm-with-neon.c $(regdef_h)
> arm-with-neon.c : $(srcdir)/../regformats/arm-with-neon.dat $(regdat_sh)
> $(SHELL) $(regdat_sh) $(srcdir)/../regformats/arm-with-neon.dat arm-with-neon.c
> +reg-bfin.o : reg-bfin.c $(regdef_h)
> +reg-bfin.c : $(srcdir)/../regformats/reg-bfin.dat $(regdat_sh)
> + $(SHELL) $(regdat_sh) $(srcdir)/../regformats/reg-bfin.dat reg-bfin.c
> reg-cris.o : reg-cris.c $(regdef_h)
> reg-cris.c : $(srcdir)/../regformats/reg-cris.dat $(regdat_sh)
> $(SHELL) $(regdat_sh) $(srcdir)/../regformats/reg-cris.dat reg-cris.c
> diff --git a/gdb/gdbserver/README b/gdb/gdbserver/README
> index 6debbd8..3eaeb61 100644
> --- a/gdb/gdbserver/README
> +++ b/gdb/gdbserver/README
> @@ -81,6 +81,8 @@ Building GDBserver:
>
> The supported targets as of November 2006 are:
> arm-*-linux*
> + bfin-*-uclinux
> + bfin-*-linux-uclibc
> crisv32-*-linux*
> cris-*-linux*
> i[34567]86-*-cygwin*
> diff --git a/gdb/gdbserver/configure.srv b/gdb/gdbserver/configure.srv
> index 1e8fa30..d6110dd 100644
> --- a/gdb/gdbserver/configure.srv
> +++ b/gdb/gdbserver/configure.srv
> @@ -67,6 +67,11 @@ case "${target}" in
> srv_mingw=yes
> srv_mingwce=yes
> ;;
> + bfin-*-*linux*) srv_regobj=reg-bfin.o
> + srv_tgtobj="linux-low.o linux-bfin-low.o"
> + srv_linux_usrregs=yes
> + srv_linux_thread_db=yes
> + ;;
> crisv32-*-linux*) srv_regobj=reg-crisv32.o
> srv_tgtobj="linux-low.o linux-crisv32-low.o"
> srv_linux_regsets=yes
> diff --git a/gdb/gdbserver/linux-bfin-low.c b/gdb/gdbserver/linux-bfin-low.c
> new file mode 100644
> index 0000000..ce40dea
> --- /dev/null
> +++ b/gdb/gdbserver/linux-bfin-low.c
> @@ -0,0 +1,108 @@
> +/* GNU/Linux/BFIN specific low level interface, for the remote server for GDB.
> +
> + Copyright (C) 2005-2010 Free Software Foundation, Inc.
> + Contributed by Analog Devices.
> +
> + 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 "server.h"
> +#include "linux-low.h"
> +#include "libiberty.h"
> +#include <asm/ptrace.h>
> +
> +/* Defined in auto-generated file reg-bfin.c. */
> +void init_registers_bfin (void);
> +
> +static int bfin_regmap[] =
> +{
> + PT_R0, PT_R1, PT_R2, PT_R3, PT_R4, PT_R5, PT_R6, PT_R7,
> + PT_P0, PT_P1, PT_P2, PT_P3, PT_P4, PT_P5, PT_USP, PT_FP,
> + PT_I0, PT_I1, PT_I2, PT_I3, PT_M0, PT_M1, PT_M2, PT_M3,
> + PT_B0, PT_B1, PT_B2, PT_B3, PT_L0, PT_L1, PT_L2, PT_L3,
> + PT_A0X, PT_A0W, PT_A1X, PT_A1W, PT_ASTAT, PT_RETS,
> + PT_LC0, PT_LT0, PT_LB0, PT_LC1, PT_LT1, PT_LB1,
> + -1 /* PT_CYCLES */, -1 /* PT_CYCLES2 */,
> + -1 /* PT_USP */, PT_SEQSTAT, PT_SYSCFG, PT_PC, PT_RETX, PT_RETN, PT_RETE,
> + PT_PC, -1 /* PT_CC */,
> + /* FLAT: PT_TEXT_ADDR, PT_TEXT_END_ADDR, PT_DATA_ADDR, */
> + /* FDPIC: PT_FDPIC_EXEC PT_FDPIC_INTERP, */
> + /* MISC: PT_IPEND */
> +};
> +
> +#define bfin_num_regs ARRAY_SIZE (bfin_regmap)
> +
> +static int
> +bfin_cannot_store_register (int regno)
> +{
> + return (regno >= bfin_num_regs);
> +}
> +
> +static int
> +bfin_cannot_fetch_register (int regno)
> +{
> + return (regno >= bfin_num_regs);
> +}
> +
> +static CORE_ADDR
> +bfin_get_pc (struct regcache *regcache)
> +{
> + unsigned long pc;
> +
> + collect_register_by_name (regcache, "pc", &pc);
> +
> + return pc;
> +}
> +
> +static void
> +bfin_set_pc (struct regcache *regcache, CORE_ADDR pc)
> +{
> + unsigned long newpc = pc;
> +
> + supply_register_by_name (regcache, "pc", &newpc);
> +}
> +
> +#define bfin_breakpoint_len 2
> +static const unsigned char bfin_breakpoint[bfin_breakpoint_len] = {0xa1, 0x00};
> +
> +static int
> +bfin_breakpoint_at (CORE_ADDR where)
> +{
> + unsigned char insn[bfin_breakpoint_len];
> +
> + read_inferior_memory(where, insn, bfin_breakpoint_len);
> + if (insn[0] == bfin_breakpoint[0]
> + && insn[1] == bfin_breakpoint[1])
> + return 1;
> +
> + /* If necessary, recognize more trap instructions here. GDB only uses the
> + one. */
> + return 0;
> +}
> +
> +struct linux_target_ops the_low_target = {
> + init_registers_bfin,
> + bfin_num_regs,
> + bfin_regmap,
> + bfin_cannot_fetch_register,
> + bfin_cannot_store_register,
> + bfin_get_pc,
> + bfin_set_pc,
> + bfin_breakpoint,
> + bfin_breakpoint_len,
> + 0,
> + 2,
> + bfin_breakpoint_at,
> +};
> diff --git a/gdb/gdbserver/linux-low.c b/gdb/gdbserver/linux-low.c
> index c65ce54..75fe905 100644
> --- a/gdb/gdbserver/linux-low.c
> +++ b/gdb/gdbserver/linux-low.c
> @@ -4373,6 +4373,10 @@ linux_stopped_data_address (void)
> #define PT_TEXT_ADDR 49*4
> #define PT_DATA_ADDR 50*4
> #define PT_TEXT_END_ADDR 51*4
> +#elif defined(BFIN)
> +#define PT_TEXT_ADDR 220
> +#define PT_TEXT_END_ADDR 224
> +#define PT_DATA_ADDR 228
> #endif
>
> /* Under uClinux, programs are loaded at non-zero offsets, which we need
> diff --git a/gdb/regformats/reg-bfin.dat b/gdb/regformats/reg-bfin.dat
> new file mode 100644
> index 0000000..52f7826
> --- /dev/null
> +++ b/gdb/regformats/reg-bfin.dat
> @@ -0,0 +1,57 @@
> +name:bfin
> +expedite:pc,sp,fp
> +32:r0
> +32:r1
> +32:r2
> +32:r3
> +32:r4
> +32:r5
> +32:r6
> +32:r7
> +32:p0
> +32:p1
> +32:p2
> +32:p3
> +32:p4
> +32:p5
> +32:sp
> +32:fp
> +32:i0
> +32:i1
> +32:i2
> +32:i3
> +32:m0
> +32:m1
> +32:m2
> +32:m3
> +32:b0
> +32:b1
> +32:b2
> +32:b3
> +32:l0
> +32:l1
> +32:l2
> +32:l3
> +32:a0x
> +32:a0w
> +32:a1x
> +32:a1w
> +32:astat
> +32:rets
> +32:lc0
> +32:lt0
> +32:lb0
> +32:lc1
> +32:lt1
> +32:lb1
> +32:cycles
> +32:cycles2
> +32:usp
> +32:seqstat
> +32:syscfg
> +32:reti
> +32:retx
> +32:retn
> +32:rete
> +32:pc
> +32:cc
>
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v4] gdb: bfin: new port
2010-12-15 19:17 ` [PATCH v4] gdb: " Pedro Alves
@ 2010-12-15 19:40 ` Mike Frysinger
2010-12-15 19:51 ` Pedro Alves
0 siblings, 1 reply; 7+ messages in thread
From: Mike Frysinger @ 2010-12-15 19:40 UTC (permalink / raw)
To: Pedro Alves; +Cc: gdb-patches, toolchain-devel
[-- Attachment #1: Type: Text/Plain, Size: 1344 bytes --]
On Wednesday, December 15, 2010 14:17:03 Pedro Alves wrote:
> On Wednesday 15 December 2010 16:47:25, Mike Frysinger wrote:
> > +bfin-*-*)
> > + # Target: Blackfin
> > + gdb_target_obs="bfin-tdep.o bfin-linux-tdep.o linux-tdep.o"
> > + ;;
>
> should probably be:
>
> bfin-*-uclinux*)
> # Target: Blackfin running uclinux
> gdb_target_obs="bfin-tdep.o bfin-linux-tdep.o linux-tdep.o"
> ;;
> bfin-*-*)
> # Target: Blackfin
> gdb_target_obs="bfin-tdep.o"
> ;;
>
> The top-level src/configure.ac seems to actually use
> bfin*-*-uclinux* (extra star).
we run Linux. uClinux is an old naming. also, bfin-linux-uclibc is a
supported target, so i tend to use bfin-*-*linux*.
in the past, any Blackfin gdb was sufficient to debug any Blackfin target, but
i guess i could preserve this with --enable-targets=... ?
> > + warning (_("Function Prologue not recognised; pc will point to
> > ENTRY_POINT of the function"));
>
> way too long line. write as, e.g.,
>
> warning (_("Function Prologue not recognised; "
> "pc will point to ENTRY_POINT of the function"));
yes it's long, but i thought the emphasis was on not breaking string literals.
screws up grep and such.
the rest i've fixed locally
-mike
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^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v4] gdb: bfin: new port
2010-12-15 19:40 ` Mike Frysinger
@ 2010-12-15 19:51 ` Pedro Alves
2010-12-15 20:11 ` Mike Frysinger
0 siblings, 1 reply; 7+ messages in thread
From: Pedro Alves @ 2010-12-15 19:51 UTC (permalink / raw)
To: gdb-patches; +Cc: Mike Frysinger, toolchain-devel
On Wednesday 15 December 2010 19:39:02, Mike Frysinger wrote:
> we run Linux. uClinux is an old naming. also, bfin-linux-uclibc is a
> supported target, so i tend to use bfin-*-*linux*.
>
> in the past, any Blackfin gdb was sufficient to debug any Blackfin target, but
> i guess i could preserve this with --enable-targets=... ?
Right. Or just build for bfin-linux, and you can still debug
non-linux stuff. Best avoid getting into triplet namespace
trouble in case someone adds support for some other OS.
> yes it's long, but i thought the emphasis was on not breaking string literals.
> screws up grep and such.
While that's true, I never heard of us making exceptions on that ground.
We have quite a number of string literals broken up.
--
Pedro Alves
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v4] gdb: bfin: new port
2010-12-15 19:51 ` Pedro Alves
@ 2010-12-15 20:11 ` Mike Frysinger
0 siblings, 0 replies; 7+ messages in thread
From: Mike Frysinger @ 2010-12-15 20:11 UTC (permalink / raw)
To: Pedro Alves; +Cc: gdb-patches, toolchain-devel
[-- Attachment #1: Type: Text/Plain, Size: 629 bytes --]
On Wednesday, December 15, 2010 14:51:48 Pedro Alves wrote:
> On Wednesday 15 December 2010 19:39:02, Mike Frysinger wrote:
> > we run Linux. uClinux is an old naming. also, bfin-linux-uclibc is a
> > supported target, so i tend to use bfin-*-*linux*.
> >
> > in the past, any Blackfin gdb was sufficient to debug any Blackfin
> > target, but i guess i could preserve this with --enable-targets=... ?
>
> Right. Or just build for bfin-linux, and you can still debug
> non-linux stuff.
we release multiple toolchains, so that isnt really a solution for me. but
--enable-targets seems to do what i need.
-mike
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^ permalink raw reply [flat|nested] 7+ messages in thread
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Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
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2010-12-15 16:48 [PATCH v4] gdb: bfin: new port Mike Frysinger
2010-12-15 16:48 ` [PATCH v4] gdbserver: " Mike Frysinger
2010-12-15 19:21 ` Pedro Alves
2010-12-15 19:17 ` [PATCH v4] gdb: " Pedro Alves
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