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- No longer disassemble invalid i386 opcodes of movQ/movA (BZ 172034).

Browse Source 
- Simplify the IPv6 patch for gdbserver (BZ 198365).
- Suggest fixing your target architecture for gdbserver(1) (BZ 190810).
- Fix dereferencing registers for 32bit inferiors on 64bit hosts (BZ
    181390).
- Fix `gcore' command for 32bit inferiors on 64bit hosts.
This commit is contained in:
Jan Kratochvil 2006-10-01 19:21:15 +00:00
parent 7e80c93779
commit 50a6238835
5 changed files with 2764 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

100
gdb-6.5-bz181390-memory-address-width.patch Normal file
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@ -0,0 +1,100 @@
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=181390
2006-09-28 Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb/utils.c (paddress): Disable cutting of the printed addresses
to the target's address bit size; user wants to see everything.
* gdb/value.c (value_as_address_core): Original `value_as_address'.
(value_as_address): New `value_as_address' wrapper - cut memory address
to the target's address bit size, bugreport by John Reiser.
Index: gdb-6.5/gdb/utils.c
===================================================================
RCS file: /cvs/src/src/gdb/utils.c,v
retrieving revision 1.169
diff -u -p -r1.169 utils.c
--- gdb-6.5.orig/gdb/utils.c 21 Sep 2006 13:50:51 -0000 1.169
+++ gdb-6.5/gdb/utils.c 28 Sep 2006 17:06:03 -0000
@@ -2596,6 +2596,14 @@ paddr_nz (CORE_ADDR addr)
const char *
paddress (CORE_ADDR addr)
{
+ /* Do not cut the address as the user should see all the information
+ available. Otherwise 64-bit gdb debugging 32-bit inferior would
+ report for `x/x 0xffffffffffffce70' error
+ `Cannot access memory at 0xffffce70' while the error occured just
+ because of the higher order bits 0xffffffff00000000 there.
+ This specific error no longer occurs as the address is now cut
+ during execution by `value_as_address'. */
+#if 0
/* Truncate address to the size of a target address, avoiding shifts
larger or equal than the width of a CORE_ADDR. The local
variable ADDR_BIT stops the compiler reporting a shift overflow
@@ -2609,6 +2617,8 @@ paddress (CORE_ADDR addr)
if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT))
addr &= ((CORE_ADDR) 1 << addr_bit) - 1;
+#endif
+
return hex_string (addr);
}
Index: gdb-6.5/gdb/value.c
===================================================================
RCS file: /cvs/src/src/gdb/value.c,v
retrieving revision 1.36
diff -u -p -r1.36 value.c
--- gdb-6.5.orig/gdb/value.c 31 Mar 2006 10:36:18 -0000 1.36
+++ gdb-6.5/gdb/value.c 28 Sep 2006 17:06:03 -0000
@@ -950,11 +950,10 @@ value_as_double (struct value *val)
error (_("Invalid floating value found in program."));
return foo;
}
-/* Extract a value as a C pointer. Does not deallocate the value.
- Note that val's type may not actually be a pointer; value_as_long
- handles all the cases. */
-CORE_ADDR
-value_as_address (struct value *val)
+
+/* See `value_as_address' below - core of value to C pointer extraction. */
+static CORE_ADDR
+value_as_address_core (struct value *val)
{
/* Assume a CORE_ADDR can fit in a LONGEST (for now). Not sure
whether we want this to be true eventually. */
@@ -1054,6 +1053,33 @@ value_as_address (struct value *val)
return unpack_long (value_type (val), value_contents (val));
#endif
}
+
+/* Extract a value as a C pointer. Does not deallocate the value.
+ Note that val's type may not actually be a pointer; value_as_long
+ handles all the cases. */
+CORE_ADDR
+value_as_address (struct value *val)
+{
+ CORE_ADDR addr;
+
+ addr = value_as_address_core (val);
+
+ /* Truncate address to the size of a target address, avoiding shifts
+ larger or equal than the width of a CORE_ADDR. The local
+ variable ADDR_BIT stops the compiler reporting a shift overflow
+ when it won't occur. */
+ /* NOTE: This assumes that the significant address information is
+ kept in the least significant bits of ADDR - the upper bits were
+ either zero or sign extended. Should ADDRESS_TO_POINTER() or
+ some ADDRESS_TO_PRINTABLE() be used to do the conversion? */
+
+ int addr_bit = TARGET_ADDR_BIT;
+
+ if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT))
+ addr &= ((CORE_ADDR) 1 << addr_bit) - 1;
+
+ return addr;
+}
/* Unpack raw data (copied from debugee, target byte order) at VALADDR
as a long, or as a double, assuming the raw data is described

41
gdb-6.5-bz190810-gdbserver-arch-advice.patch Normal file
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@ -0,0 +1,41 @@
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=190810
2006-09-26 Jan Kratochvil <jan.kratochvil@redhat.com>
* remote.c (remote_wait): Suggestion on crash due to nonmatching target.
(remote_async_wait): Likewise.
--- gdb-6.5/gdb/remote.c.orig 2006-10-01 08:01:17.000000000 -0400
+++ gdb-6.5/gdb/remote.c 2006-10-01 08:03:18.000000000 -0400
@@ -2789,8 +2789,13 @@
reg->regnum, regs);
}
+ /* It may also occur on amd64 which defaults to 32-bit i386
+ target. gdbserver(1) is not aware of the `set architecture'
+ name itself as it is not using libbfd. */
if (*p++ != ';')
- error (_("Remote register badly formatted: %s\nhere: %s"),
+ error (_("Remote register badly formatted: %s\nhere: %s"
+ "\nTry to load the executable by `file' first,"
+ "\nyou may also check `set/show architecture'."),
buf, p);
}
}
@@ -2983,8 +2988,13 @@
regcache_raw_supply (current_regcache, reg->regnum, regs);
}
+ /* It may also occur on amd64 which defaults to 32-bit i386
+ target. gdbserver(1) is not aware of the `set architecture'
+ name itself as it is not using libbfd. */
if (*p++ != ';')
- error (_("Remote register badly formatted: %s\nhere: %s"),
+ error (_("Remote register badly formatted: %s\nhere: %s"
+ "\nTry to load the executable by `file' first,"
+ "\nyou may also check `set/show architecture'."),
buf, p);
}
}

1850
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747
gdb-6.5-gcore-i386-on-amd64.patch Normal file
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@ -0,0 +1,747 @@
2006-10-01 Jan Kratochvil <jan.kratochvil@redhat.com>
Fujitsu
* amd64-linux-nat.c: Support new linux_elfcore_write_prpsinfo,
linux_elfcore_write_prstatus, linux_elfcore_write_prfpreg.
(i386_linux_gregset32_reg_offset): New mapping for i386 on amd64.
* gcore.c (gcore_create_callback): Comment vdso Linux kernel bug.
* configure.ac: Check for <sys/user32.h>, <sys/procfs32.h>.
* configure, config.in: Regenerated.
* gdb_user32.h, gdb_procfs32.h: Define 32-bit core files even for
64-bit gdb, provide fallbacks for <sys/user32.h> and <sys/procfs32.h>.
* linux-nat.c: Virtualize `elfcore_*' by (*`linux_elfcore_*').
(linux_nat_do_thread_registers): Likewise.
(linux_nat_make_corefile_notes): Likewise.
* linux-nat.h: Likewise.
* Makefile.in: Dependencies updated.
Index: gdb-6.5/gdb/Makefile.in
===================================================================
--- gdb-6.5.orig/gdb/Makefile.in 21 Sep 2006 14:00:53 -0000 1.844
+++ gdb-6.5/gdb/Makefile.in 1 Oct 2006 16:22:42 -0000
@@ -696,6 +696,7 @@ gdb_h = gdb.h
gdb_locale_h = gdb_locale.h
gdb_obstack_h = gdb_obstack.h $(obstack_h)
gdb_proc_service_h = gdb_proc_service.h $(gregset_h)
+gdb_procfs32_h = gdb_procfs32.h $(gdb_user32_h)
gdb_ptrace_h = gdb_ptrace.h
gdb_regex_h = gdb_regex.h $(xregex_h)
gdb_select_h = gdb_select.h
@@ -705,6 +706,7 @@ gdb_string_h = gdb_string.h
gdb_thread_db_h = gdb_thread_db.h
gdbthread_h = gdbthread.h $(breakpoint_h) $(frame_h)
gdbtypes_h = gdbtypes.h $(hashtab_h)
+gdb_user32_h = gdb_user32.h $(gdb_stdint_h)
gdb_vfork_h = gdb_vfork.h
gdb_wait_h = gdb_wait.h
glibc_tdep_h = glibc-tdep.h
@@ -1743,7 +1745,8 @@ amd64fbsd-tdep.o: amd64fbsd-tdep.c $(def
amd64-linux-nat.o: amd64-linux-nat.c $(defs_h) $(inferior_h) $(gdbcore_h) \
$(regcache_h) $(linux_nat_h) $(gdb_assert_h) $(gdb_string_h) \
$(gdb_proc_service_h) $(gregset_h) $(amd64_tdep_h) \
- $(i386_linux_tdep_h) $(amd64_nat_h) $(target_h)
+ $(i386_linux_tdep_h) $(amd64_nat_h) $(target_h) \
+ $(i387_tdep_h) $(elf_bfd_h) $(gdb_procfs32_h)
amd64-linux-tdep.o: amd64-linux-tdep.c $(defs_h) $(frame_h) $(gdbcore_h) \
$(regcache_h) $(osabi_h) $(symtab_h) $(gdb_string_h) $(amd64_tdep_h) \
$(solib_svr4_h)
Index: gdb-6.5/gdb/amd64-linux-nat.c
===================================================================
--- gdb-6.5.orig/gdb/amd64-linux-nat.c 19 Aug 2006 15:15:18 -0000 1.13
+++ gdb-6.5/gdb/amd64-linux-nat.c 1 Oct 2006 16:22:42 -0000
@@ -52,6 +52,9 @@
#include "amd64-tdep.h"
#include "i386-linux-tdep.h"
#include "amd64-nat.h"
+#include "i387-tdep.h"
+#include "bfd/elf-bfd.h"
+#include "gdb_procfs32.h"
/* Mapping between the general-purpose registers in GNU/Linux x86-64
`struct user' format and GDB's register cache layout. */
@@ -86,6 +89,35 @@ static int amd64_linux_gregset64_reg_off
GNU/Linux i386 registers are all 32-bit, but since we're
little-endian we get away with that. */
+/* This info is not reusable from "i386-linux-nat.c" as gdb itself runs in
+ 64-bit mode and so ptrace(2) has 64-bit structure layout.
+ Just the corefile being generated has 32-bit layout so we need to do
+ a conversion specific to the i386-on-amd64 compatibility mode. */
+static int i386_linux_gregset32_reg_offset[] =
+{
+ 6 * 4, /* %eax */
+ 1 * 4, /* %ecx */
+ 2 * 4, /* %edx */
+ 0 * 4, /* %ebx */
+ 15 * 4, /* %esp */
+ 5 * 4, /* %ebp */
+ 3 * 4, /* %esi */
+ 4 * 4, /* %edi */
+ 12 * 4, /* %eip */
+ 14 * 4, /* %eflags */
+ 13 * 4, /* %cs */
+ 16 * 4, /* %ss */
+ 7 * 4, /* %ds */
+ 8 * 4, /* %es */
+ 9 * 4, /* %fs */
+ 10 * 4, /* %gs */
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1,
+ 11 * 4 /* "orig_eax" */
+};
+
/* From <sys/reg.h> on GNU/Linux i386. */
static int amd64_linux_gregset32_reg_offset[] =
{
@@ -104,6 +136,94 @@ static int amd64_linux_gregset32_reg_off
};
+/* This functions make ELF32 32-bit elfcore note sections
+ on amd64 environment. */
+
+static char *
+amd64_linux_elfcore_write_prpsinfo (bfd *abfd, char *buf, int *bufsiz,
+ const char *fname, const char *psargs)
+{
+ if (gdbarch_ptr_bit(current_gdbarch) == 32)
+ {
+ int note_type;
+ char *note_name = "CORE";
+ struct elf_prpsinfo32 data;
+ note_type = NT_PRPSINFO;
+
+ memset (&data, 0, sizeof (data));
+ strncpy (data.pr_fname, fname, sizeof (data.pr_fname));
+ strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs));
+ return elfcore_write_note (abfd, buf, bufsiz,
+ note_name, note_type, &data, sizeof (data));
+ }
+ else
+ return elfcore_write_prpsinfo (abfd, buf, bufsiz, fname, psargs);
+}
+
+static void
+amd64_linux_set_registers (const gdb_byte *gregs, gdb_byte *buf)
+{
+ int i;
+ /* Copy the i386 registers in the amd64 layout into i386 layout. */
+ for (i = 0; i < I386_NUM_GREGS; i++)
+ memcpy(buf + i386_linux_gregset32_reg_offset[i],
+ gregs + amd64_linux_gregset32_reg_offset[i], 4);
+ for (i = I386_CS_REGNUM; i <= I386_GS_REGNUM; i++)
+ memcpy(buf + i386_linux_gregset32_reg_offset[i],
+ gregs + amd64_linux_gregset32_reg_offset[i], 4);
+}
+
+static char *
+amd64_linux_elfcore_write_prstatus (bfd *abfd, char *buf, int *bufsiz,
+ long pid, int cursig, const void *gregs)
+{
+ if (gdbarch_ptr_bit(current_gdbarch) == 32)
+ {
+ char *note_name = "CORE";
+ struct elf_prstatus32 prstat;
+ memset (&prstat, 0, sizeof (prstat));
+ prstat.pr_pid = pid;
+ prstat.pr_cursig = cursig;
+ amd64_linux_set_registers (gregs, (gdb_byte *) &prstat.pr_reg);
+ return elfcore_write_note (abfd, buf, bufsiz, note_name,
+ NT_PRSTATUS, &prstat, sizeof (prstat));
+ }
+ else
+ return elfcore_write_prstatus (abfd, buf, bufsiz, pid, cursig, gregs);
+}
+
+static char *
+amd64_elfcore_write_prxfpreg32 (bfd *abfd, char *buf, int *bufsiz)
+{
+ char *note_name = "LINUX";
+ elf_fpxregset32_t fpxregs32;
+
+ i387_fill_fxsave (&fpxregs32, -1);
+ return elfcore_write_note(abfd, buf, bufsiz,
+ note_name, NT_PRXFPREG, &fpxregs32,
+ sizeof(fpxregs32));
+}
+
+static char *
+amd64_linux_elfcore_write_prfpreg (bfd *abfd, char *buf,
+ int *bufsiz, const void *fpregs, int size)
+{
+ if (gdbarch_ptr_bit(current_gdbarch) == 32)
+ {
+ char *note_name = "CORE";
+ elf_fpregset32_t fpregs32;
+
+ i387_fill_fsave (&fpregs32, -1);
+ buf = elfcore_write_note(abfd, buf, bufsiz, note_name,
+ NT_FPREGSET, &fpregs32, sizeof(fpregs32));
+
+ return amd64_elfcore_write_prxfpreg32 (abfd, buf, bufsiz);
+ }
+ else
+ return elfcore_write_prfpreg (abfd, buf, bufsiz, fpregs, size);
+}
+
+
/* Transfering the general-purpose registers between GDB, inferiors
and core files. */
@@ -406,6 +526,11 @@ _initialize_amd64_linux_nat (void)
t->to_fetch_registers = amd64_linux_fetch_inferior_registers;
t->to_store_registers = amd64_linux_store_inferior_registers;
+ /* This functions make elfcore note sections. */
+ linux_elfcore_write_prpsinfo = amd64_linux_elfcore_write_prpsinfo;
+ linux_elfcore_write_prstatus = amd64_linux_elfcore_write_prstatus;
+ linux_elfcore_write_prfpreg = amd64_linux_elfcore_write_prfpreg;
+
/* Register the target. */
linux_nat_add_target (t);
}
Index: gdb-6.5/gdb/config.in
===================================================================
--- gdb-6.5.orig/gdb/config.in 8 Aug 2006 20:32:15 -0000 1.84
+++ gdb-6.5/gdb/config.in 1 Oct 2006 16:22:42 -0000
@@ -373,6 +373,9 @@
/* Define to 1 if you have the <sys/poll.h> header file. */
#undef HAVE_SYS_POLL_H
+/* Define to 1 if you have the <sys/procfs32.h> header file. */
+#undef HAVE_SYS_PROCFS32_H
+
/* Define to 1 if you have the <sys/procfs.h> header file. */
#undef HAVE_SYS_PROCFS_H
@@ -397,6 +400,9 @@
/* Define to 1 if you have the <sys/types.h> header file. */
#undef HAVE_SYS_TYPES_H
+/* Define to 1 if you have the <sys/user32.h> header file. */
+#undef HAVE_SYS_USER32_H
+
/* Define to 1 if you have the <sys/user.h> header file. */
#undef HAVE_SYS_USER_H
Index: gdb-6.5/gdb/configure
===================================================================
--- gdb-6.5.orig/gdb/configure 2006-10-01 18:43:40.000000000 +0200
+++ gdb-6.5/gdb/configure 2006-10-01 18:40:44.000000000 +0200
@@ -11949,6 +11949,157 @@
+for ac_header in sys/user32.h sys/procfs32.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+else
+ # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag"
+ || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_header_compiler=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_header_compiler=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ ac_header_preproc=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So? What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+ yes:no: )
+ { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
+ ac_header_preproc=yes
+ ;;
+ no:yes:* )
+ { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
+ (
+ cat <<\_ASBOX
+## ------------------------------------------ ##
+## Report this to the AC_PACKAGE_NAME lists. ##
+## ------------------------------------------ ##
+_ASBOX
+ ) |
+ sed "s/^/$as_me: WARNING: /" >&2
+ ;;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ eval "$as_ac_Header=\$ac_header_preproc"
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+
+fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+
for ac_header in sys/wait.h wait.h
do
as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
Index: gdb-6.5/gdb/configure.ac
===================================================================
--- gdb-6.5.orig/gdb/configure.ac 8 Aug 2006 20:26:23 -0000 1.34
+++ gdb-6.5/gdb/configure.ac 1 Oct 2006 16:22:43 -0000
@@ -365,6 +365,7 @@ AC_CHECK_HEADERS(sys/user.h, [], [],
# include <sys/param.h>
#endif
])
+AC_CHECK_HEADERS(sys/user32.h sys/procfs32.h)
AC_CHECK_HEADERS(sys/wait.h wait.h)
AC_CHECK_HEADERS(termios.h termio.h sgtty.h)
AC_CHECK_HEADERS(unistd.h)
Index: gdb-6.5/gdb/gcore.c
===================================================================
--- gdb-6.5.orig/gdb/gcore.c 17 Dec 2005 22:33:59 -0000 1.18
+++ gdb-6.5/gdb/gcore.c 1 Oct 2006 16:22:43 -0000
@@ -314,6 +314,11 @@ gcore_create_callback (CORE_ADDR vaddr,
asection *osec;
flagword flags = SEC_ALLOC | SEC_HAS_CONTENTS | SEC_LOAD;
+ /* Some Linux kernel versions around 2.6.17 have for i386 inferiors running
+ in compatibility mode on amd64 kernel their VSYSCALL page (at 0xffffe000)
+ protected as RWX==000 by default and gdb fails to read the library header
+ upon loading the core. This is a Linux kernel bug being fixed. */
+
/* If the memory segment has no permissions set, ignore it, otherwise
when we later try to access it for read/write, we'll get an error
or jam the kernel. */
Index: gdb-6.5/gdb/gdb_procfs32.h
===================================================================
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ gdb-6.5/gdb/gdb_procfs32.h 1 Oct 2006 16:22:43 -0000
@@ -0,0 +1,128 @@
+#ifdef HAVE_SYS_PROCFS32_H
+#include <sys/procfs32.h>
+#else
+
+/* Copyright (C) 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_PROCFS32_H
+#define _SYS_PROCFS32_H 1
+
+/* This is somewhat modelled after the file of the same name on SVR4
+ systems. It provides a definition of the core file format for ELF
+ used on Linux. It doesn't have anything to do with the /proc file
+ system, even though Linux has one.
+
+ Anyway, the whole purpose of this file is for GDB and GDB only.
+ Don't read too much into it. Don't use it for anything other than
+ GDB unless you know what you are doing. */
+
+#include <features.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include "gdb_user32.h"
+
+/* We define here only the symbols differing from their 64-bit variant. */
+#include <sys/procfs.h>
+
+__BEGIN_DECLS
+
+/* Type for a general-purpose register. */
+typedef unsigned int elf_greg32_t;
+
+/* And the whole bunch of them. We could have used `struct
+ user_regs_struct' directly in the typedef, but tradition says that
+ the register set is an array, which does have some peculiar
+ semantics, so leave it that way. */
+#define ELF_NGREG32 (sizeof (struct user_regs32_struct) / sizeof(elf_greg32_t))
+typedef elf_greg32_t elf_gregset32_t[ELF_NGREG32];
+
+/* Register set for the floating-point registers. */
+typedef struct user_fpregs32_struct elf_fpregset32_t;
+
+/* Register set for the extended floating-point registers. Includes
+ the Pentium III SSE registers in addition to the classic
+ floating-point stuff. */
+typedef struct user_fpxregs32_struct elf_fpxregset32_t;
+
+
+/* Definitions to generate Intel SVR4-like core files. These mostly
+ have the same names as the SVR4 types with "elf_" tacked on the
+ front to prevent clashes with Linux definitions, and the typedef
+ forms have been avoided. This is mostly like the SVR4 structure,
+ but more Linuxy, with things that Linux does not support and which
+ GDB doesn't really use excluded. */
+
+struct prstatus32_timeval
+ {
+ int tv_sec;
+ int tv_usec;
+ };
+
+struct elf_prstatus32
+ {
+ struct elf_siginfo pr_info; /* Info associated with signal. */
+ short int pr_cursig; /* Current signal. */
+ unsigned int pr_sigpend; /* Set of pending signals. */
+ unsigned int pr_sighold; /* Set of held signals. */
+ __pid_t pr_pid;
+ __pid_t pr_ppid;
+ __pid_t pr_pgrp;
+ __pid_t pr_sid;
+ struct prstatus32_timeval pr_utime; /* User time. */
+ struct prstatus32_timeval pr_stime; /* System time. */
+ struct prstatus32_timeval pr_cutime; /* Cumulative user time. */
+ struct prstatus32_timeval pr_cstime; /* Cumulative system time. */
+ elf_gregset32_t pr_reg; /* GP registers. */
+ int pr_fpvalid; /* True if math copro being used. */
+ };
+
+
+struct elf_prpsinfo32
+ {
+ char pr_state; /* Numeric process state. */
+ char pr_sname; /* Char for pr_state. */
+ char pr_zomb; /* Zombie. */
+ char pr_nice; /* Nice val. */
+ unsigned int pr_flag; /* Flags. */
+ unsigned short int pr_uid;
+ unsigned short int pr_gid;
+ int pr_pid, pr_ppid, pr_pgrp, pr_sid;
+ /* Lots missing */
+ char pr_fname[16]; /* Filename of executable. */
+ char pr_psargs[ELF_PRARGSZ]; /* Initial part of arg list. */
+ };
+
+
+/* The rest of this file provides the types for emulation of the
+ Solaris <proc_service.h> interfaces that should be implemented by
+ users of libthread_db. */
+
+/* Register sets. Linux has different names. */
+typedef elf_gregset_t prgregset32_t;
+typedef elf_fpregset_t prfpregset32_t;
+
+/* Process status and info. In the end we do provide typedefs for them. */
+typedef struct elf_prstatus32 prstatus32_t;
+typedef struct elf_prpsinfo32 prpsinfo32_t;
+
+__END_DECLS
+
+#endif /* _SYS_PROCFS32_H */
+
+#endif /* HAVE_SYS_PROCFS32_H */
Index: gdb-6.5/gdb/gdb_user32.h
===================================================================
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ gdb-6.5/gdb/gdb_user32.h 1 Oct 2006 16:22:43 -0000
@@ -0,0 +1,108 @@
+#ifdef HAVE_SYS_USER32_H
+#include <sys/user32.h>
+#else
+
+#ifdef HAVE_STDINT_H
+#include <stdint.h>
+typedef int32_t gdb_int32_t;
+typedef uint32_t gdb_uint32_t;
+#else
+typedef signed int gdb_uint32_t;
+typedef unsigned int gdb_uint32_t;
+#endif
+
+/* Copyright (C) 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_USER32_H
+#define _SYS_USER32_H 1
+
+/* These are the 32-bit x86 structures. */
+
+struct user_fpregs32_struct
+{
+ int32_t cwd;
+ int32_t swd;
+ int32_t twd;
+ int32_t fip;
+ int32_t fcs;
+ int32_t foo;
+ int32_t fos;
+ int32_t st_space [20];
+};
+
+struct user_fpxregs32_struct
+{
+ unsigned short int cwd;
+ unsigned short int swd;
+ unsigned short int twd;
+ unsigned short int fop;
+ int32_t fip;
+ int32_t fcs;
+ int32_t foo;
+ int32_t fos;
+ int32_t mxcsr;
+ int32_t reserved;
+ int32_t st_space[32]; /* 8*16 bytes for each FP-reg = 128 bytes */
+ int32_t xmm_space[32]; /* 8*16 bytes for each XMM-reg = 128 bytes */
+ int32_t padding[56];
+};
+
+struct user_regs32_struct
+{
+ int32_t ebx;
+ int32_t ecx;
+ int32_t edx;
+ int32_t esi;
+ int32_t edi;
+ int32_t ebp;
+ int32_t eax;
+ int32_t xds;
+ int32_t xes;
+ int32_t xfs;
+ int32_t xgs;
+ int32_t orig_eax;
+ int32_t eip;
+ int32_t xcs;
+ int32_t eflags;
+ int32_t esp;
+ int32_t xss;
+};
+
+struct user32
+{
+ struct user_regs32_struct regs;
+ int u_fpvalid;
+ struct user_fpregs32_struct i387;
+ uint32_t u_tsize;
+ uint32_t u_dsize;
+ uint32_t u_ssize;
+ uint32_t start_code;
+ uint32_t start_stack;
+ int32_t signal;
+ int reserved;
+ struct user_regs32_struct* u_ar0;
+ struct user_fpregs32_struct* u_fpstate;
+ uint32_t magic;
+ char u_comm [32];
+ int u_debugreg [8];
+};
+
+#endif /* _SYS_USER32_H */
+
+#endif /* HAVE_SYS_USER32_H */
Index: gdb-6.5/gdb/linux-nat.c
===================================================================
--- gdb-6.5.orig/gdb/linux-nat.c 16 Sep 2006 09:48:12 -0000 1.50
+++ gdb-6.5/gdb/linux-nat.c 1 Oct 2006 16:22:43 -0000
@@ -99,6 +99,15 @@ static LONGEST (*super_xfer_partial) (st
const gdb_byte *,
ULONGEST, LONGEST);
+/* This functions make elfcore note sections.
+ They may get overriden by code adjusting data for multi-target builds. */
+char *(*linux_elfcore_write_prpsinfo)
+ (bfd *, char *, int *, const char *, const char *) = elfcore_write_prpsinfo;
+char *(*linux_elfcore_write_prstatus)
+ (bfd *, char *, int *, long, int, const void *) = elfcore_write_prstatus;
+char *(*linux_elfcore_write_prfpreg)
+ (bfd *, char *, int *, const void *, int) = elfcore_write_prfpreg;
+
static int debug_linux_nat;
static void
show_debug_linux_nat (struct ui_file *file, int from_tty,
@@ -2562,11 +2571,11 @@ linux_nat_do_thread_registers (bfd *obfd
else
fill_gregset (&gregs, -1);
- note_data = (char *) elfcore_write_prstatus (obfd,
- note_data,
- note_size,
- lwp,
- stop_signal, &gregs);
+ note_data = (char *) linux_elfcore_write_prstatus (obfd,
+ note_data,
+ note_size,
+ lwp,
+ stop_signal, &gregs);
if (core_regset_p
&& (regset = gdbarch_regset_from_core_section (gdbarch, ".reg2",
@@ -2577,10 +2586,10 @@ linux_nat_do_thread_registers (bfd *obfd
else
fill_fpregset (&fpregs, -1);
- note_data = (char *) elfcore_write_prfpreg (obfd,
- note_data,
- note_size,
- &fpregs, sizeof (fpregs));
+ note_data = (char *) linux_elfcore_write_prfpreg (obfd,
+ note_data,
+ note_size,
+ &fpregs, sizeof (fpregs));
#ifdef FILL_FPXREGSET
if (core_regset_p
@@ -2675,9 +2684,9 @@ linux_nat_make_corefile_notes (bfd *obfd
strncat (psargs, get_inferior_args (),
sizeof (psargs) - strlen (psargs));
}
- note_data = (char *) elfcore_write_prpsinfo (obfd,
- note_data,
- note_size, fname, psargs);
+ note_data = (char *) linux_elfcore_write_prpsinfo (obfd, note_data,
+ note_size, fname,
+ psargs);
}
/* Dump information for threads. */
Index: gdb-6.5/gdb/linux-nat.h
===================================================================
--- gdb-6.5.orig/gdb/linux-nat.h 23 Jul 2006 21:21:01 -0000 1.12
+++ gdb-6.5/gdb/linux-nat.h 1 Oct 2006 16:22:43 -0000
@@ -96,3 +96,12 @@ void linux_nat_add_target (struct target
/* Update linux-nat internal state when changing from one fork
to another. */
void linux_nat_switch_fork (ptid_t new_ptid);
+
+/* This functions make elfcore note sections.
+ They may get overriden by code adjusting data for multi-target builds. */
+extern char *(*linux_elfcore_write_prpsinfo)
+ (bfd *, char *, int *, const char *, const char *);
+extern char *(*linux_elfcore_write_prstatus)
+ (bfd *, char *, int *, long, int, const void *);
+extern char *(*linux_elfcore_write_prfpreg)
+ (bfd *, char *, int *, const void *, int);

28
gdb.spec
View File

@ -11,7 +11,7 @@ Name: gdb
Version: 6.5 Version: 6.5
# The release always contains a leading reserved number, start it at 0. # The release always contains a leading reserved number, start it at 0.
Release: 10%{?dist} Release: 11%{?dist}
License: GPL License: GPL
Group: Development/Debuggers Group: Development/Debuggers
@ -268,7 +268,20 @@ Patch195: gdb-6.5-tls-of-separate-debuginfo.patch
Patch196: gdb-6.5-sharedlibrary-path.patch Patch196: gdb-6.5-sharedlibrary-path.patch
# Support IPv6 for gdbserver (BZ 198365). # Support IPv6 for gdbserver (BZ 198365).
Patch197: gdb-6.5-IPv6.patch Patch197: gdb-6.5-bz198365-IPv6.patch
# No longer disassemble invalid i386 opcodes of movQ/movA (BZ 172034).
Patch198: gdb-6.5-bz172034-disasm-i386-C6-C7.patch
# Suggest fixing your target architecture for gdbserver(1) (BZ 190810).
# FIXME: It could be autodetected.
Patch199: gdb-6.5-bz190810-gdbserver-arch-advice.patch
# Fix dereferencing registers for 32bit inferiors on 64bit hosts (BZ 181390).
Patch200: gdb-6.5-bz181390-memory-address-width.patch
# Fix `gcore' command for 32bit inferiors on 64bit hosts.
Patch201: gdb-6.5-gcore-i386-on-amd64.patch
BuildRequires: ncurses-devel glibc-devel gcc make gzip texinfo dejagnu gettext BuildRequires: ncurses-devel glibc-devel gcc make gzip texinfo dejagnu gettext
BuildRequires: flex bison sharutils BuildRequires: flex bison sharutils
@ -378,6 +391,10 @@ and printing their data.
%patch195 -p1 %patch195 -p1
%patch196 -p1 %patch196 -p1
%patch197 -p1 %patch197 -p1
%patch198 -p1
%patch199 -p1
%patch200 -p1
%patch201 -p1
# Change the version that gets printed at GDB startup, so it is RedHat # Change the version that gets printed at GDB startup, so it is RedHat
# specific. # specific.
@ -539,6 +556,13 @@ fi
# don't include the files in include, they are part of binutils # don't include the files in include, they are part of binutils
%changelog %changelog
* Sun Oct 1 2006 Jan Kratochvil <jan.kratochvil@redhat.com> - 6.5-11
- No longer disassemble invalid i386 opcodes of movQ/movA (BZ 172034).
- Simplify the IPv6 patch for gdbserver (BZ 198365).
- Suggest fixing your target architecture for gdbserver(1) (BZ 190810).
- Fix dereferencing registers for 32bit inferiors on 64bit hosts (BZ 181390).
- Fix `gcore' command for 32bit inferiors on 64bit hosts.
* Wed Sep 27 2006 Jan Kratochvil <jan.kratochvil@redhat.com> - 6.5-10 * Wed Sep 27 2006 Jan Kratochvil <jan.kratochvil@redhat.com> - 6.5-10
- Support IPv6 for gdbserver (BZ 198365). - Support IPv6 for gdbserver (BZ 198365).
- Temporarily disable testcase "chng-syms.exp" for a possible kernel Bug 207002. - Temporarily disable testcase "chng-syms.exp" for a possible kernel Bug 207002.