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-rw-r--r--meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gdb/files/0006-Patch-microblaze-Add-initial-port-of-linux-gdbserver.patch553
1 files changed, 0 insertions, 553 deletions
diff --git a/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gdb/files/0006-Patch-microblaze-Add-initial-port-of-linux-gdbserver.patch b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gdb/files/0006-Patch-microblaze-Add-initial-port-of-linux-gdbserver.patch
deleted file mode 100644
index cb2eec180..000000000
--- a/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gdb/files/0006-Patch-microblaze-Add-initial-port-of-linux-gdbserver.patch
+++ /dev/null
@@ -1,553 +0,0 @@
-From 2112c9ded01ddd08f0e31e5ce23eecac6c04e8c4 Mon Sep 17 00:00:00 2001
-From: David Holsgrove <david.holsgrove@petalogix.com>
-Date: Mon, 6 Feb 2012 10:28:29 +1000
-Subject: [PATCH 06/16] [Patch, microblaze]: Add initial port of linux
- gdbserver
-
-add gdb_proc_service_h to gdbserver microblaze-linux
-
-gdbserver needs to initialise the microblaze registers
-
-other archs use this step to run a *_arch_setup() to carry out all
-architecture specific setup - may need to add in future
-
- * add linux-ptrace.o to gdbserver configure
- * gdb/configure.tgt: Set build_gdbserver=yes
- * Update breakpoint opcode
- * fix segfault on connecting gdbserver
- * add microblaze_linux_memory_remove_breakpoint
- * add set_solib_svr4_fetch_link_map_offsets
- * add set_gdbarch_fetch_tls_load_module_address
- * Force reading of r0 as 0, prevent stores
-
-Signed-off-by: David Holsgrove <david.holsgrove@petalogix.com>
-Signed-off-by: Nathan Rossi <nathan.rossi@petalogix.com>
-Upstream-Status: Pending
----
- gdb/configure.host | 3 +
- gdb/configure.tgt | 1 +
- gdb/gdbserver/Makefile.in | 4 +
- gdb/gdbserver/configure.srv | 6 +
- gdb/gdbserver/linux-microblaze-low.c | 228 +++++++++++++++++++++++++++++++++++
- gdb/microblaze-linux-tdep.c | 25 +++-
- gdb/microblaze-tdep.c | 45 ++++++-
- gdb/microblaze-tdep.h | 3 +-
- gdb/regformats/reg-microblaze.dat | 39 ++++++
- 9 files changed, 348 insertions(+), 6 deletions(-)
- create mode 100644 gdb/gdbserver/linux-microblaze-low.c
- create mode 100644 gdb/regformats/reg-microblaze.dat
-
-diff --git a/gdb/configure.host b/gdb/configure.host
-index 15a8288..76cc5fe 100644
---- a/gdb/configure.host
-+++ b/gdb/configure.host
-@@ -59,6 +59,7 @@ i[34567]86*) gdb_host_cpu=i386 ;;
- m68*) gdb_host_cpu=m68k ;;
- m88*) gdb_host_cpu=m88k ;;
- mips*) gdb_host_cpu=mips ;;
-+microblaze*) gdb_host_cpu=microblaze ;;
- powerpc* | rs6000) gdb_host_cpu=powerpc ;;
- sparcv9 | sparc64) gdb_host_cpu=sparc ;;
- s390*) gdb_host_cpu=s390 ;;
-@@ -133,6 +134,8 @@ mips*-*-netbsd* | mips*-*-knetbsd*-gnu)
- gdb_host=nbsd ;;
- mips64*-*-openbsd*) gdb_host=obsd64 ;;
-
-+microblaze*-*linux*) gdb_host=linux ;;
-+
- powerpc-*-aix* | rs6000-*-* | powerpc64-*-aix*)
- gdb_host=aix ;;
- powerpc*-*-freebsd*) gdb_host=fbsd ;;
-diff --git a/gdb/configure.tgt b/gdb/configure.tgt
-index 9297c56..3a7951a 100644
---- a/gdb/configure.tgt
-+++ b/gdb/configure.tgt
-@@ -343,6 +343,7 @@ microblaze*-linux-*|microblaze*-*-linux*)
- gdb_target_obs="microblaze-tdep.o microblaze-linux-tdep.o microblaze-rom.o glibc-tdep.o \
- monitor.o dsrec.o solib-svr4.o symfile-mem.o linux-tdep.o"
- gdb_sim=../sim/microblaze/libsim.a
-+ build_gdbserver=yes
- ;;
- microblaze*-*-*)
- # Target: Xilinx MicroBlaze running standalone
-diff --git a/gdb/gdbserver/Makefile.in b/gdb/gdbserver/Makefile.in
-index f773fa2..a11ace1 100644
---- a/gdb/gdbserver/Makefile.in
-+++ b/gdb/gdbserver/Makefile.in
-@@ -148,6 +148,7 @@ SFILES= $(srcdir)/gdbreplay.c $(srcdir)/inferiors.c $(srcdir)/dll.c \
- $(srcdir)/linux-ia64-low.c $(srcdir)/linux-low.c \
- $(srcdir)/linux-m32r-low.c \
- $(srcdir)/linux-m68k-low.c $(srcdir)/linux-mips-low.c \
-+ $(srcdir)/linux-microblaze-low.c \
- $(srcdir)/linux-nios2-low.c \
- $(srcdir)/linux-ppc-low.c \
- $(srcdir)/linux-s390-low.c \
-@@ -329,6 +330,7 @@ clean:
- rm -f arm-with-iwmmxt.c
- rm -f arm-with-vfpv2.c arm-with-vfpv3.c arm-with-neon.c
- rm -f mips-linux.c mips64-linux.c
-+ rm -f microblaze-linux.c
- rm -f nios2-linux.c
- rm -f powerpc-32.c powerpc-32l.c powerpc-64l.c powerpc-e500l.c
- rm -f powerpc-altivec32l.c powerpc-cell32l.c powerpc-vsx32l.c
-@@ -612,6 +614,8 @@ reg-m68k.c : $(srcdir)/../regformats/reg-m68k.dat $(regdat_sh)
- $(SHELL) $(regdat_sh) $(srcdir)/../regformats/reg-m68k.dat reg-m68k.c
- reg-cf.c : $(srcdir)/../regformats/reg-cf.dat $(regdat_sh)
- $(SHELL) $(regdat_sh) $(srcdir)/../regformats/reg-cf.dat reg-cf.c
-+microblaze-linux.c : $(srcdir)/../regformats/reg-microblaze.dat $(regdat_sh)
-+ $(SHELL) $(regdat_sh) $(srcdir)/../regformats/reg-microblaze.dat microblaze-linux.c
- mips-linux.c : $(srcdir)/../regformats/mips-linux.dat $(regdat_sh)
- $(SHELL) $(regdat_sh) $(srcdir)/../regformats/mips-linux.dat mips-linux.c
- mips-dsp-linux.c : $(srcdir)/../regformats/mips-dsp-linux.dat $(regdat_sh)
-diff --git a/gdb/gdbserver/configure.srv b/gdb/gdbserver/configure.srv
-index cc4f53d..359c756 100644
---- a/gdb/gdbserver/configure.srv
-+++ b/gdb/gdbserver/configure.srv
-@@ -198,6 +198,12 @@ case "${target}" in
- srv_linux_usrregs=yes
- srv_linux_thread_db=yes
- ;;
-+ microblaze*-*-linux*) srv_regobj=microblaze-linux.o
-+ srv_tgtobj="$srv_linux_obj linux-microblaze-low.o"
-+ srv_linux_usrregs=yes
-+ srv_linux_regsets=yes
-+ srv_linux_thread_db=yes
-+ ;;
- nios2*-*-linux*) srv_regobj="nios2-linux.o"
- srv_tgtobj="$srv_linux_obj linux-nios2-low.o"
- srv_xmlfiles="nios2-linux.xml"
-diff --git a/gdb/gdbserver/linux-microblaze-low.c b/gdb/gdbserver/linux-microblaze-low.c
-new file mode 100644
-index 0000000..279df9f
---- /dev/null
-+++ b/gdb/gdbserver/linux-microblaze-low.c
-@@ -0,0 +1,228 @@
-+/* GNU/Linux/Microblaze specific low level interface, for the remote server for
-+ GDB.
-+ Copyright (C) 1995-2013 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 "server.h"
-+#include "linux-low.h"
-+
-+#include <asm/ptrace.h>
-+#include <sys/procfs.h>
-+#include <sys/ptrace.h>
-+
-+#include "gdb_proc_service.h"
-+
-+static int microblaze_regmap[] =
-+ {PT_GPR(0), PT_GPR(1), PT_GPR(2), PT_GPR(3),
-+ PT_GPR(4), PT_GPR(5), PT_GPR(6), PT_GPR(7),
-+ PT_GPR(8), PT_GPR(9), PT_GPR(10), PT_GPR(11),
-+ PT_GPR(12), PT_GPR(13), PT_GPR(14), PT_GPR(15),
-+ PT_GPR(16), PT_GPR(17), PT_GPR(18), PT_GPR(19),
-+ PT_GPR(20), PT_GPR(21), PT_GPR(22), PT_GPR(23),
-+ PT_GPR(24), PT_GPR(25), PT_GPR(26), PT_GPR(27),
-+ PT_GPR(28), PT_GPR(29), PT_GPR(30), PT_GPR(31),
-+ PT_PC, PT_MSR, PT_EAR, PT_ESR,
-+ PT_FSR
-+ };
-+
-+#define microblaze_num_regs (sizeof microblaze_regmap / sizeof microblaze_regmap[0])
-+
-+/* Defined in auto-generated file microblaze-linux.c. */
-+void init_registers_microblaze (void);
-+extern const struct target_desc *tdesc_microblaze;
-+
-+static int
-+microblaze_cannot_store_register (int regno)
-+{
-+ if (microblaze_regmap[regno] == -1 || regno == 0)
-+ return 1;
-+
-+ return 0;
-+}
-+
-+static int
-+microblaze_cannot_fetch_register (int regno)
-+{
-+ return 0;
-+}
-+
-+static CORE_ADDR
-+microblaze_get_pc (struct regcache *regcache)
-+{
-+ unsigned long pc;
-+
-+ collect_register_by_name (regcache, "pc", &pc);
-+ return (CORE_ADDR) pc;
-+}
-+
-+static void
-+microblaze_set_pc (struct regcache *regcache, CORE_ADDR pc)
-+{
-+ unsigned long newpc = pc;
-+
-+ supply_register_by_name (regcache, "pc", &newpc);
-+}
-+
-+/* dbtrap insn */
-+/* brki r16, 0x18; */
-+static const unsigned long microblaze_breakpoint = 0xba0c0018;
-+#define microblaze_breakpoint_len 4
-+
-+static int
-+microblaze_breakpoint_at (CORE_ADDR where)
-+{
-+ unsigned long insn;
-+
-+ (*the_target->read_memory) (where, (unsigned char *) &insn, 4);
-+ if (insn == microblaze_breakpoint)
-+ return 1;
-+ /* If necessary, recognize more trap instructions here. GDB only uses the
-+ one. */
-+ return 0;
-+}
-+
-+static CORE_ADDR
-+microblaze_reinsert_addr (struct regcache *regcache)
-+{
-+ unsigned long pc;
-+ collect_register_by_name (regcache, "r15", &pc);
-+ return pc;
-+}
-+
-+#ifdef HAVE_PTRACE_GETREGS
-+
-+static void
-+microblaze_collect_ptrace_register (struct regcache *regcache, int regno, char *buf)
-+{
-+ int size = register_size (regcache->tdesc, regno);
-+
-+ memset (buf, 0, sizeof (long));
-+
-+ if (size < sizeof (long))
-+ collect_register (regcache, regno, buf + sizeof (long) - size);
-+ else
-+ collect_register (regcache, regno, buf);
-+}
-+
-+static void
-+microblaze_supply_ptrace_register (struct regcache *regcache,
-+ int regno, const char *buf)
-+{
-+ int size = register_size (regcache->tdesc, regno);
-+
-+ if (regno == 0) {
-+ unsigned long regbuf_0 = 0;
-+ /* clobbering r0 so that it is always 0 as enforced by hardware */
-+ supply_register (regcache, regno, (const char*)&regbuf_0);
-+ } else {
-+ if (size < sizeof (long))
-+ supply_register (regcache, regno, buf + sizeof (long) - size);
-+ else
-+ supply_register (regcache, regno, buf);
-+ }
-+}
-+
-+/* Provide only a fill function for the general register set. ps_lgetregs
-+ will use this for NPTL support. */
-+
-+static void microblaze_fill_gregset (struct regcache *regcache, void *buf)
-+{
-+ int i;
-+
-+ for (i = 0; i < 32; i++)
-+ microblaze_collect_ptrace_register (regcache, i, (char *) buf + microblaze_regmap[i]);
-+}
-+
-+static void
-+microblaze_store_gregset (struct regcache *regcache, const void *buf)
-+{
-+ int i;
-+
-+ for (i = 0; i < 32; i++)
-+ supply_register (regcache, i, (char *) buf + microblaze_regmap[i]);
-+}
-+
-+#endif /* HAVE_PTRACE_GETREGS */
-+
-+static struct regset_info microblaze_regsets[] = {
-+#ifdef HAVE_PTRACE_GETREGS
-+ { PTRACE_GETREGS, PTRACE_SETREGS, 0, sizeof (elf_gregset_t), GENERAL_REGS, microblaze_fill_gregset, microblaze_store_gregset },
-+ { 0, 0, 0, -1, -1, NULL, NULL },
-+#endif /* HAVE_PTRACE_GETREGS */
-+ { 0, 0, 0, -1, -1, NULL, NULL }
-+};
-+
-+static struct regsets_info microblaze_regsets_info =
-+ {
-+ microblaze_regsets, /* regsets */
-+ 0, /* num_regsets */
-+ NULL, /* disabled_regsets */
-+ };
-+
-+static struct usrregs_info microblaze_usrregs_info =
-+ {
-+ microblaze_num_regs,
-+ microblaze_regmap,
-+ };
-+
-+static struct regs_info regs_info =
-+ {
-+ NULL, /* regset_bitmap */
-+ &microblaze_usrregs_info,
-+ &microblaze_regsets_info
-+ };
-+
-+static const struct regs_info *
-+microblaze_regs_info (void)
-+{
-+ return &regs_info;
-+}
-+
-+static void
-+microblaze_arch_setup (void)
-+{
-+ current_process ()->tdesc = tdesc_microblaze;
-+}
-+
-+struct linux_target_ops the_low_target = {
-+ microblaze_arch_setup,
-+ microblaze_regs_info,
-+ microblaze_cannot_fetch_register,
-+ microblaze_cannot_store_register,
-+ NULL, /* fetch_register */
-+ microblaze_get_pc,
-+ microblaze_set_pc,
-+ (const unsigned char *) &microblaze_breakpoint,
-+ microblaze_breakpoint_len,
-+ microblaze_reinsert_addr,
-+ 0,
-+ microblaze_breakpoint_at,
-+ NULL,
-+ NULL,
-+ NULL,
-+ NULL,
-+ microblaze_collect_ptrace_register,
-+ microblaze_supply_ptrace_register,
-+};
-+
-+void
-+initialize_low_arch (void)
-+{
-+ init_registers_microblaze ();
-+
-+ initialize_regsets_info (&microblaze_regsets_info);
-+}
-\ No newline at end of file
-diff --git a/gdb/microblaze-linux-tdep.c b/gdb/microblaze-linux-tdep.c
-index 7e6b61b..cf58e21 100644
---- a/gdb/microblaze-linux-tdep.c
-+++ b/gdb/microblaze-linux-tdep.c
-@@ -38,6 +38,22 @@
- #include "tramp-frame.h"
- #include "linux-tdep.h"
-
-+static int microblaze_debug_flag = 0;
-+
-+static void
-+microblaze_debug (const char *fmt, ...)
-+{
-+ if (microblaze_debug_flag)
-+ {
-+ va_list args;
-+
-+ va_start (args, fmt);
-+ printf_unfiltered ("MICROBLAZE LINUX: ");
-+ vprintf_unfiltered (fmt, args);
-+ va_end (args);
-+ }
-+}
-+
- static int
- microblaze_linux_memory_remove_breakpoint (struct gdbarch *gdbarch,
- struct bp_target_info *bp_tgt)
-@@ -47,20 +63,27 @@ microblaze_linux_memory_remove_breakpoint (struct gdbarch *gdbarch,
- int val;
- int bplen;
- gdb_byte old_contents[BREAKPOINT_MAX];
-+ struct cleanup *cleanup;
-
- /* Determine appropriate breakpoint contents and size for this address. */
- bp = gdbarch_breakpoint_from_pc (gdbarch, &addr, &bplen);
- if (bp == NULL)
- error (_("Software breakpoints not implemented for this target."));
-
-+ /* Make sure we see the memory breakpoints. */
-+ cleanup = make_show_memory_breakpoints_cleanup (1);
- val = target_read_memory (addr, old_contents, bplen);
-
- /* If our breakpoint is no longer at the address, this means that the
- program modified the code on us, so it is wrong to put back the
- old value. */
- if (val == 0 && memcmp (bp, old_contents, bplen) == 0)
-- val = target_write_raw_memory (addr, bp_tgt->shadow_contents, bplen);
-+ {
-+ val = target_write_raw_memory (addr, bp_tgt->shadow_contents, bplen);
-+ microblaze_debug ("microblaze_linux_memory_remove_breakpoint writing back to memory at addr 0x%lx\n", addr);
-+ }
-
-+ do_cleanups (cleanup);
- return val;
- }
-
-diff --git a/gdb/microblaze-tdep.c b/gdb/microblaze-tdep.c
-index 50b68d2..1c6dbfe 100644
---- a/gdb/microblaze-tdep.c
-+++ b/gdb/microblaze-tdep.c
-@@ -164,6 +164,39 @@ microblaze_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
- return sp;
- }
-
-+static int
-+microblaze_linux_memory_remove_breakpoint (struct gdbarch *gdbarch,
-+ struct bp_target_info *bp_tgt)
-+{
-+ CORE_ADDR addr = bp_tgt->placed_address;
-+ const unsigned char *bp;
-+ int val;
-+ int bplen;
-+ gdb_byte old_contents[BREAKPOINT_MAX];
-+ struct cleanup *cleanup;
-+
-+ /* Determine appropriate breakpoint contents and size for this address. */
-+ bp = gdbarch_breakpoint_from_pc (gdbarch, &addr, &bplen);
-+ if (bp == NULL)
-+ error (_("Software breakpoints not implemented for this target."));
-+
-+ /* Make sure we see the memory breakpoints. */
-+ cleanup = make_show_memory_breakpoints_cleanup (1);
-+ val = target_read_memory (addr, old_contents, bplen);
-+
-+ /* If our breakpoint is no longer at the address, this means that the
-+ program modified the code on us, so it is wrong to put back the
-+ old value. */
-+ if (val == 0 && memcmp (bp, old_contents, bplen) == 0)
-+ {
-+ val = target_write_raw_memory (addr, bp_tgt->shadow_contents, bplen);
-+ microblaze_debug ("microblaze_linux_memory_remove_breakpoint writing back to memory at addr 0x%lx\n", addr);
-+ }
-+
-+ do_cleanups (cleanup);
-+ return val;
-+}
-+
- static const gdb_byte *
- microblaze_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pc,
- int *len)
-@@ -291,8 +324,8 @@ microblaze_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc,
-
- for (addr = func_addr; addr < stop; addr += INST_WORD_SIZE)
- {
-- //insn = microblaze_fetch_instruction (addr);
-- insn = insn_block[(addr - func_addr) / INST_WORD_SIZE];
-+ insn = microblaze_fetch_instruction (addr);
-+ //insn = insn_block[(addr - func_addr) / INST_WORD_SIZE];
- op = microblaze_decode_insn (insn, &rd, &ra, &rb, &imm);
- microblaze_debug ("%s %08lx op=%x r%d r%d imm=%d\n", paddress (gdbarch, addr), insn, op, rd, ra, imm);
-
-@@ -724,13 +757,15 @@ microblaze_software_single_step (struct frame_info *frame)
- rb = get_frame_register_unsigned (frame, lrb);
- else
- rb = 0;
-+
- stepbreaks[1].address = microblaze_get_target_address (insn, immfound, imm, pc, ra, rb, &targetvalid, &unconditionalbranch);
-- microblaze_debug ("single-step uncondbr=%d targetvalid=%d target=%x\n", unconditionalbranch, targetvalid, stepbreaks[1].address);
-+ microblaze_debug ("single-step uncondbr=%d targetvalid=%d target=%x\n", unconditionalbranch, targetvalid, stepbreaks[1].address);
-+
- if (unconditionalbranch)
- stepbreaks[0].valid = FALSE; /* This is a unconditional branch: will not come to the next address */
- if (targetvalid && (stepbreaks[0].valid == FALSE ||
- (stepbreaks[0].address != stepbreaks[1].address))
-- && (stepbreaks[1].address != pc)) {
-+ && (stepbreaks[1].address != pc)) {
- stepbreaks[1].valid = TRUE;
- } else {
- stepbreaks[1].valid = FALSE;
-@@ -900,6 +935,8 @@ microblaze_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
- /* Stack grows downward. */
- set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
-
-+ set_gdbarch_memory_remove_breakpoint (gdbarch, microblaze_linux_memory_remove_breakpoint);
-+
- set_gdbarch_breakpoint_from_pc (gdbarch, microblaze_breakpoint_from_pc);
- set_gdbarch_software_single_step (gdbarch, microblaze_software_single_step);
-
-diff --git a/gdb/microblaze-tdep.h b/gdb/microblaze-tdep.h
-index fec24b9..98aa0f5 100644
---- a/gdb/microblaze-tdep.h
-+++ b/gdb/microblaze-tdep.h
-@@ -129,7 +129,8 @@ enum microblaze_regnum
-
- /* MICROBLAZE_BREAKPOINT defines the breakpoint that should be used.
- Only used for native debugging. */
--#define MICROBLAZE_BREAKPOINT {0xb9, 0xcc, 0x00, 0x60}
-+#define MICROBLAZE_BREAKPOINT {0xba, 0x0c, 0x00, 0x18}
-+#define MICROBLAZE_BREAKPOINT_LE {0x18, 0x00, 0x0c, 0xba}
-
- extern void microblaze_supply_gregset (const struct microblaze_gregset *gregset,
- struct regcache *regcache,
-diff --git a/gdb/regformats/reg-microblaze.dat b/gdb/regformats/reg-microblaze.dat
-new file mode 100644
-index 0000000..a5dd0a0
---- /dev/null
-+++ b/gdb/regformats/reg-microblaze.dat
-@@ -0,0 +1,39 @@
-+name:microblaze
-+expedite:r1,pc
-+32:r0
-+32:r1
-+32:r2
-+32:r3
-+32:r4
-+32:r5
-+32:r6
-+32:r7
-+32:r8
-+32:r9
-+32:r10
-+32:r11
-+32:r12
-+32:r13
-+32:r14
-+32:r15
-+32:r16
-+32:r17
-+32:r18
-+32:r19
-+32:r20
-+32:r21
-+32:r22
-+32:r23
-+32:r24
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---
-1.9.0
-