Pedro Alves [Wed, 22 Jan 2014 12:01:53 +0000 (12:01 +0000)]
xtensa-config.c: missing defs.h include.
All .c files must start by including defs.h.
2014-01-22 Pedro Alves <palves@redhat.com>
* xtensa-config.c: Include defs.h.
Alan Modra [Wed, 22 Jan 2014 05:35:12 +0000 (16:05 +1030)]
Display the reference causing a shared library to be needed
Adds a section for --as-needed libraries to a linker map file, similar
to what we do for archive libraries.
bfd/
* elflink.c (elf_link_add_object_symbols): Call minfo for --as-needed.
ld/
* ldlang.c (asneeded_list_head, asneeded_list_tail): New vars.
(lang_init): Initialise them.
(lang_print_asneeded): New function.
(lang_process): Call lang_print_asneeded.
* ldlang.h (struct asneeded_minfo): New.
(asneeded_list_tail): Declare.
* ldmain.c (add_archive_element): Improve archive map heading.
* ldmisc.c (minfo): Stash --as-needed info.
Alan Modra [Wed, 22 Jan 2014 05:06:27 +0000 (15:36 +1030)]
Fix gas build breakage
* config/tc-tic4x.c (md_shortopts): s/CONST/const/.
Alan Modra [Wed, 22 Jan 2014 05:04:30 +0000 (15:34 +1030)]
Comment typo
* elf64-ppc.c (STK_LINKER): Comment typo fix.
Joel Brobecker [Tue, 21 Jan 2014 10:16:57 +0000 (14:16 +0400)]
Add ARI (ok) marker for __func__ reference in common-utils.h
The ARI script flagged the use of the __func__ variable, which
is normally not allowed (not defined in C90). However, this particular
use is OK, as the reference is only made when __STDC_VERSION__ >=
199901L. So, add an "ARI:" comment to explicitly OK this use.
gdb/ChangeLog:
* common/common-utils.h: Add "ARI:" comment beside __func__
reference.
Joel Brobecker [Tue, 21 Jan 2014 10:20:50 +0000 (14:20 +0400)]
Expand documentation of common-utils.h::FUNCTION_NAME
While looking at this macro, I noticed that it wasn't always necessarily
defined. That prompted me to search the current sources to make sure
that all uses were adequately protected, which they were. But to help
prevent future uses to be made unprotected, this patch expands the
current macro documentation a bit.
gdb/ChangeLog:
* common/common-utils.h (FUNCTION_NAME): Expand the macro's
documentation a bit.
Alan Modra [Wed, 22 Jan 2014 02:21:19 +0000 (12:51 +1030)]
Miscellaneous ld tidies
Localise a struct, prevent an unneeded symbol lookup, and fix a
testcase.
ld/
* ld.h (struct map_symbol_def): Move to..
* ldlang.h: ..here.
* ldlang.c (print_assignment): Don't set expld.assign_name to dot.
ld/testsuite/
* ld-scripts/pr14962-2.d: Correct target triple.
Alan Modra [Wed, 22 Jan 2014 01:13:03 +0000 (11:43 +1030)]
Make assignments to dot keep an empty output section.
An assignment to dot in an output section that allocates space of
course keeps the output section. Here, I'm changing the behaviour for
assignments that don't allocate space. The idea is not so much to
allow people to force output of an empty section with ". = .", but
to fix cases where an otherwise empty section has padding added by an
alignment expression that changes with relaxation or .eh_frame
editing. Such a section might have zero size before relaxation and so
be stripped incorrectly.
ld/
* ld.texinfo (Output Section Discarding): Mention assigning to dot
as a way of keeping otherwise empty sections.
* ldexp.c (is_dot, is_value, is_sym_value, is_dot_ne_0,
is_dot_plus_0, is_align_conditional): New predicates.
(exp_fold_tree_1): Set SEC_KEEP when assigning to dot inside an
output section, except for some special cases.
* scripttempl/elfmicroblaze.sc: Use canonical form to align at
end of .heap and .stack.
ld/testsuite/
* ld-shared/elf-offset.ld: Align end of .bss with canonical form
of ALIGN that allows an empty .bss to be removed.
* ld-arm/arm-dyn.ld: Likewise.
* ld-arm/arm-lib.ld: Likewise.
* ld-elfvsb/elf-offset.ld: Likewise.
* ld-mips-elf/mips-dyn.ld: Likewise.
* ld-mips-elf/mips-lib.ld: Likewise.
* ld-arm/arm-no-rel-plt.ld: Remove duplicate ALIGN.
* ld-powerpc/vle-multiseg-1.ld: Remove ALIGN at start of section.
ALIGN address of section instead.
* ld-powerpc/vle-multiseg-2.ld: Likewise.
* ld-powerpc/vle-multiseg-3.ld: Likewise.
* ld-powerpc/vle-multiseg-4.ld: Likewise.
* ld-powerpc/vle-multiseg-6.ld: Likewise.
* ld-scripts/empty-aligned.d: Check section headers not program
headers. Remove xfail and notarget.
* ld-scripts/empty-aligned.t: Use canonical ALIGN for end of .text2.
H.J. Lu [Tue, 21 Jan 2014 23:42:43 +0000 (15:42 -0800)]
Check incompatible existing default symbol definition
After resolving a versioned reference, foo@VER1, to a default versioned
definition, foo@@VER1, from a shared object, we also merge it with
the existing regular default symbol definition, foo. When foo is IFUNC
and foo@@VER1 aren't, we will merge 2 incompatible definitions. This
patch avoids merging foo@@VER1 definition with foo definition if
one is IFUNC and the other isn't.
Alan Modra [Tue, 21 Jan 2014 23:01:03 +0000 (09:31 +1030)]
daily update
DJ Delorie [Tue, 21 Jan 2014 20:12:19 +0000 (15:12 -0500)]
Ensure that %func() expressions are outermost terms
This is to avoid expressions like: %hi(foo) + 1, which will
not do what you expect. The complex relocations can handle it,
but the internal fixups can't.
Roland McGrath [Tue, 21 Jan 2014 19:01:04 +0000 (11:01 -0800)]
gdb: Support install-strip target
gdb/
* configure.ac: Call AM_PROG_INSTALL_STRIP.
* configure: Regenerate.
* aclocal.m4: Regenerate.
* Makefile.in (install_sh, INSTALL_STRIP_PROGRAM, STRIP):
New substituted variables.
(install-strip): New target.
(INSTALL_SCRIPT): New substituted variable.
(FLAGS_TO_PASS): Add it.
(install-only): Use $(INSTALL_SCRIPT) rather than
$(INSTALL_PROGRAM) for gcore.
tromey [Tue, 21 Jan 2014 15:09:10 +0000 (15:09 +0000)]
[PATCH] include * ansidecl.h (ANSI_PROTOTYPES, PTRCONST, LONG_DOUBLE, PARAMS) (VPARAMS, VA_START, VA_OPEN, VA_CLOSE, VA_FIXEDARG, CONST) (VOLATILE, SIGNED, PROTO, EXFUN, DEFUN, DEFUN_VOID, AND, DOTS) (NOARGS): Don't define. * libiberty.h (expandargv, writeargv): Don't use PARAMS. libiberty * _doprint.c (checkit): Use stdarg, not VA_* macros. * asprintf.c (asprintf): Use stdarg, not VA_* macros. * concat.c (concat_length, concat_copy, concat_copy2, concat) (reconcat): Use stdarg, not VA_* macros. * snprintf.c (snprintf): Use stdarg, not VA_* macros. * vasprintf.c (checkit): Use stdarg, not VA_* macros. * vsnprintf.c (checkit): Use stdarg, not VA_* macros.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@206881
138bc75d-0d04-0410-961f-
82ee72b054a4
H.J. Lu [Tue, 21 Jan 2014 13:37:45 +0000 (05:37 -0800)]
Update comments for the last commit
H.J. Lu [Tue, 21 Jan 2014 13:33:48 +0000 (05:33 -0800)]
Don't check shared/export_dynamic/ref_dynamic for type mismatch
There is nothing linker can do when a type mismatched default definition
are made dynamic by info->shared, info->export_dynamic or h->ref_dynamic.
But we do want to avoid exporting it when building PIE. Let's remove
those checks.
bfd/
PR ld/2404
* elflink.c (_bfd_elf_merge_symbol): Don't check info->shared,
info->export_dynamic, nor !h->ref_dynamic for type mismatch when
adding the default version.
ld/testsuite/
PR ld/2404
* ld-elf/shared.exp: Add a PIE test for PR ld/2404.
Alan Modra [Mon, 20 Jan 2014 23:01:08 +0000 (09:31 +1030)]
daily update
Marcus Shawcroft [Mon, 20 Jan 2014 18:20:04 +0000 (18:20 +0000)]
[AArch64] Define LP64 BE linker name.
Marcus Shawcroft [Mon, 20 Jan 2014 18:18:52 +0000 (18:18 +0000)]
[AArch64] Define LP64 LE loader name.
Tom Tromey [Fri, 27 Dec 2013 05:06:27 +0000 (22:06 -0700)]
better packing for command struct
This moves all the bitfields in struct cmd_list_element to be closer
together. This packs the structure somewhat better. On a 64 bit
machine, this simple rearrangement saves around 50k at startup.
2014-01-20 Tom Tromey <tromey@redhat.com>
* cli/cli-decode.h (struct cmd_list_element): Move all bitfields
together.
Tom Tromey [Fri, 27 Dec 2013 05:04:40 +0000 (22:04 -0700)]
convert flags to bitfields
This changes various flags struct cmd_list_element into bitfields. In
general I think bitfields are cleaner than flag words, at least in a
case like this where there is no need to pass the flags around
independently of the enclosing struct.
2014-01-20 Tom Tromey <tromey@redhat.com>
* cli/cli-decode.c (add_cmd, deprecate_cmd, add_alias_cmd)
(add_setshow_cmd_full, delete_cmd, lookup_cmd_1)
(deprecated_cmd_warning, complete_on_cmdlist): Update.
* cli/cli-decode.h (CMD_DEPRECATED, DEPRECATED_WARN_USER)
(MALLOCED_REPLACEMENT, DOC_ALLOCATED): Remove.
(struct cmd_list_element) <flags>: Remove.
<cmd_deprecated, deprecated_warn_user, malloced_replacement,
doc_allocated>: New fields.
<hook_in, allow_unknown, abbrev_flag, type, var_type>: Now
bitfields.
* maint.c (maintenance_do_deprecate): Update.
* top.c (execute_command): Update.
H.J. Lu [Mon, 20 Jan 2014 12:50:47 +0000 (04:50 -0800)]
Add a testcase for PR ld/2404
PR ld/2404 was fixed without a testcase. This patch to add one.
PR ld/2404
* ld-elf/pr2404.out: New file.
* ld-elf/pr2404a.c: Likewise.
* ld-elf/pr2404b.c: Likewise.
* ld-elf/shared.exp (build_tests): Build libpr2404a.so and
libpr2404b.a.
(run_tests): Run pr2404.
Baruch Siach [Mon, 20 Jan 2014 07:53:12 +0000 (09:53 +0200)]
gdb: xtensa: fix linux ptrace includes
Currently, xtensa code using the Linux ptrace interface only include
sys/ptrace.h. This file comes from the C library (glibc and uClibc,
at least), and includes a declaration of the ptrace() functions, along
with some cross architecture constants that are mostly copied from the
file located at include/uapi/linux/ptrace.h in recent Linux kernels.
For xtensa specific constants like PTRACE_GETXTREGS and
PTRACE_SETXTREGS the asm/ptrace.h include from the Linux kernel UAPI
is needed. The code in gdbserver xtensa specific part doesn't call
ptrace() directly, so we can remove the unneeded sys/ptrace.h include.
The gdb xtensa specific code needs both headers, since it calls
ptrace().
gdb/
* xtensa-linux-nat.c: Include asm/ptrace.h.
gdb/gdbserver/
* linux-xtensa-low.c: Include asm/ptrace.h instead of
sys/ptrace.h.
Alan Modra [Mon, 20 Jan 2014 10:58:42 +0000 (21:28 +1030)]
Allow self-assignment for absolute symbols defined in a linker script
Modifies ld machinery tracking linker script assignments to notice all
assignments, not just those symbols mentioned in DEFINED().
ld/
PR ld/14962
* ldlang.h (struct lang_definedness_hash_entry): Add by_object and
by_script. Make iteration a single bit field.
(lang_track_definedness, lang_symbol_definition_iteration): Delete.
(lang_symbol_defined): Declare.
* ldlang.c (lang_statement_iteration): Expand comment a little.
(lang_init <lang_definedness_table>): Make it bigger.
(lang_track_definedness, lang_symbol_definition): Delete.
(lang_definedness_newfunc): Update.
(lang_symbol_defined): New function.
(lang_update_definedness): Create entries here. Do track whether
script definition of symbol is valid, even when also defined in
an object file.
* ldexp.c (fold_name <DEFINED>): Update.
(fold_name <NAME>): Allow self-assignment for absolute symbols
defined in a linker script.
ld/testsuite/
* ld-scripts/pr14962-2.d,
* ld-scripts/pr14962-2.t: New test.
* ld-scripts/expr.exp: Run it.
Guy Martin [Mon, 20 Jan 2014 03:46:16 +0000 (14:16 +1030)]
Fix duplicate output section statement lookup
Tie output section statements to their associated output section via
output section userdata. This allows us to avoid hash lookups which
are slower and fail when multiple output sections have the same name.
* ldlang.h (lang_output_section_get): Define.
* ldlang.c (lang_output_section_get): Likewise.
(init_os): Set the output_section userdata to the output
section statement.
* emultempl/hppaelf.em: Use lang_output_section_get instead of
lang_output_section_find where applicable.
* emultempl/aarch64elf.em: Likewise.
* emultempl/aix.em: Likewise.
* emultempl/armelf.em: Likewise.
* emultempl/m68hc1xelf.em: Likewise.
* emultempl/metagelf.em: Likewise.
* emultempl/mipself.em: Likewise.
* emultempl/ppc64elf.em: Likewise.
* emultempl/spuelf.em: Likewise.
Alan Modra [Sun, 19 Jan 2014 23:01:05 +0000 (09:31 +1030)]
daily update
Iain Buclaw [Sat, 18 Jan 2014 17:27:28 +0000 (17:27 +0000)]
Move D demangling routines out of d-lang.c and into d-support.c, which
is intended to house other D language support functions.
gdb/ChangeLog:
2014-01-17 Iain Buclaw <ibuclaw@gdcproject.org>
* Makefile.in (SFILES): Add d-support.c.
(COMMON_OBS): Add d-support.o.
* d-lang.h (d_parse_symbol): Add comment, now defined in
d-support.c.
* d-lang.c (parse_call_convention)
(parse_attributes, parse_function_types)
(parse_function_args, parse_type, parse_identifier)
(call_convention_p, d_parse_symbol): Move functions to ...
* d-support.c: ... New file.
Iain Buclaw [Sat, 18 Jan 2014 17:22:00 +0000 (17:22 +0000)]
Fix and update D demangling support in gdb to the current mangling ABI.
gdb/ChangeLog:
2014-01-17 Iain Buclaw <ibuclaw@gdcproject.org>
* d-lang.h (d_parse_symbol): Add declaration.
* d-lang.c (extract_identifiers)
(extract_type_info): Remove functions.
(parse_call_convention, parse_attributes)
(parse_function_types, parse_function_args)
(parse_type, parse_identifier, call_convention_p)
(d_parse_symbol): New functions.
(d_demangle): Use d_parse_symbol to demangle D symbols.
gdb/testsuite/ChangeLog:
2014-01-17 Iain Buclaw <ibuclaw@gdcproject.org>
* gdb.dlang/demangle.exp: New file.
Iain Buclaw [Sat, 18 Jan 2014 17:18:23 +0000 (17:18 +0000)]
Define all basic data types of D and add them to the primitive type
language vector.
gdb/ChangeLog:
2014-01-17 Iain Buclaw <ibuclaw@gdcproject.org>
* d-lang.h (struct builtin_d_type): New data type.
(builtin_d_type): Add declaration.
* d-lang.c (d_language_arch_info, build_d_types)
(builtin_d_type): New functions.
(enum d_primitive_types): New data type.
(d_language_defn): Change c_language_arch_info to
d_language_arch_info.
(d_type_data): New static variable.
(_initialize_d_language): Initialize d_type_data.
gdb/testsuite/ChangeLog:
2014-01-17 Iain Buclaw <ibuclaw@gdcproject.org>
* gdb.dlang/primitive-types.exp: New file.
Iain Buclaw [Sat, 18 Jan 2014 17:09:43 +0000 (17:09 +0000)]
Add d_main_name to set the logical entry point for D programs.
gdb/ChangeLog:
2014-01-17 Iain Buclaw <ibuclaw@gdcproject.org>
* d-lang.h (d_main_name): Add declaration.
* d-lang.c (d_main_name): New function.
* symtab.c (find_main_name): Add call to d_main_name.
Iain Buclaw [Sat, 18 Jan 2014 18:04:08 +0000 (18:04 +0000)]
Update d_language_defn to reflect that D does not have any style of
macro expansion in its language.
gdb/ChangeLog:
2014-01-17 Iain Buclaw <ibuclaw@gdcproject.org>
* d-lang.c (d_language_defn): Change macro_expansion_c to
macro_expansion_no.
Iain Buclaw [Sat, 18 Jan 2014 16:04:36 +0000 (16:04 +0000)]
Add gdb.dlang to the gdb testsuite for the purpose of creating D
specific tests.
gdb/testsuite/ChangeLog:
2014-01-17 Iain Buclaw <ibuclaw@gdcproject.org>
* configure.ac: Create gdb.dlang/Makefile.
* configure: Regenerate.
* Makefile.in (ALL_SUBDIRS): Add gdb.dlang.
* gdb.dlang/Makefile.in: New file.
* lib/d-support.exp: New file.
* lib/gdb.exp (skip_d_tests): New proc.
Iain Buclaw [Sat, 18 Jan 2014 18:02:41 +0000 (18:02 +0000)]
Add myself as a write-after-approval gdb maintainer.
gdb/ChangeLog:
2014-01-17 Iain Buclaw <ibuclaw@gdcproject.org>
* MAINTAINERS: Add myself as a write-after-approval maintainer.
Alan Modra [Fri, 17 Jan 2014 23:01:09 +0000 (09:31 +1030)]
daily update
Sergio Durigan Junior [Fri, 17 Jan 2014 21:39:57 +0000 (19:39 -0200)]
Add "volatile" keyword to "struct gdb_exception" declaration
While doing something else, I found that those 2 places were incorrectly
declaring a "struct gdb_exception" without using the "volatile" keyword.
This commit fixes that.
2014-01-17 Sergio Durigan Junior <sergiodj@redhat.com>
* breakpoint.c (insert_bp_location): Add "volatile" keyword to "struct
gdb_exception" declaration.
* remote.c (getpkt_or_notif_sane): Likewise.
Doug Evans [Fri, 17 Jan 2014 18:23:29 +0000 (10:23 -0800)]
Add delim_string_to_char_ptr_vec.
* common/gdb_vecs.c (delim_string_to_char_ptr_vec_append): New
function, contents of dirnames_to_char_ptr_vec_append moved here.
(delim_string_to_char_ptr_vec): New function.
(dirnames_to_char_ptr_vec_append): Rewrite.
* common/gdb_vecs.h (delim_string_to_char_ptr_vec): Declare.
Doug Evans [Fri, 17 Jan 2014 18:00:07 +0000 (10:00 -0800)]
Move ASSERT_FUNCTION to FUNCTION_NAME.
* common/common-utils.h (FUNCTION_NAME): Renamed from ASSERT_FUNCTION,
and moved here ...
* common/gdb_assert.h (ASSERT_FUNCTION): ... from here.
#include "common-utils.h".
(gdb_assert, gdb_assert_fail, gdb_assert_not_reached): Update.
* common/vec.h (VEC_ASSERT_PASS): Update.
* darwin-nat.h: Replace #include of gdb_assert.h with common-utils.h.
(MACH_CHECK_ERROR): Update.
Pedro Alves [Fri, 17 Jan 2014 16:28:38 +0000 (16:28 +0000)]
Fix PR mention in gdb/gdbserver/ChangeLog's previous change.
Will Newton [Thu, 16 Jan 2014 10:08:45 +0000 (10:08 +0000)]
gas: ARM: Fix encoding of VCVTr.s32.f64 instructions
The direct rounding floating-point VCVT instructions introduced in
ARMv8 encode the s32.f64 variant incorrectly. The op bit should be
set to 1 for all signed conversions.
gas/ChangeLog:
2014-01-17 Will Newton <will.newton@linaro.org>
* config/tc-arm.c (do_vfp_nsyn_cvt_fpv8): Set OP to 1
for the s32.f64 flavours of VCVT.
gas/testsuite/ChangeLog:
2014-01-17 Will Newton <will.newton@linaro.org>
* gas/arm/armv8-a+fp.d: Correct encoding of vcvta.s32.f64.
Pedro Alves [Fri, 17 Jan 2014 15:27:42 +0000 (15:27 +0000)]
Fix silly ChangeLog entry in previous change.
Pedro Alves [Fri, 17 Jan 2014 13:33:30 +0000 (13:33 +0000)]
Fix PR PR16445 - gdbserver build failure on x86.
If gdb_proc_service.h ends up including linux/elf.h, we'll trip on
duplicate definitions:
In file included from ../../../gdb/gdbserver/linux-x86-low.c:29:0:
../../../gdb/gdbserver/../../include/elf/common.h:36:0: error: "ELFMAG0"
redefined [-Werror]
... etc ...
Handle this the same way linux-low.c and linux-arm-low.c handle this.
gdb/gdbserver/
2014-01-17 Pedro Alves <palves@redhat.com>
PR PR16445
* linux-x86-low.c (linux-x86-low.c): Don't include elf/common.h if
ELFMAG0 is defined after including gdb_proc_service.h.
Simon Marchi [Fri, 17 Jan 2014 09:54:56 +0000 (09:54 +0000)]
Add comments to gdbarch_address_class_name_to_type_flags.
gdb/ChangeLog
2014-01-17 Simon Marchi <simon.marchi@ericsson.com>
* gdbarch.sh (gdbarch_address_class_name_to_type_flags): Add
comments.
* gdbarch.h: Regenerate.
Alan Modra [Fri, 17 Jan 2014 00:09:50 +0000 (10:39 +1030)]
Allow ld target customiser script to force on disk scripts.
Mucking with EMULATION_LIBPATH has unwanted side effects. Allow nds32
emulparams scripts to disable compiled-in scripts naturally, by
setting COMPILE_IN=no.
* genscripts.sh (COMPILE_IN): Don't set if already set.
* emulparams/nds32elf.sh: Don't clear EMULATION_LIBPATH, set
COMPILE_IN=no.
* emulparams/nds32elf16m.sh: Likewise.
* emulparams/nds32elf_linux.sh: Likewise.
* emultempl/aix.em: Test COMPILE_IN value is "yes".
* emultempl/armcoff.em: Likewise.
* emultempl/elf32.em: Likewise.
* emultempl/generic.em: Likewise.
* emultempl/gld960.em: Likewise.
* emultempl/gld960c.em: Likewise.
* emultempl/linux.em: Likewise.
* emultempl/lnk960.em: Likewise.
* emultempl/m68kcoff.em: Likewise.
* emultempl/sunos.em: Likewise.
* emultempl/ticoff.em: Likewise.
Doug Evans [Thu, 16 Jan 2014 23:47:43 +0000 (15:47 -0800)]
* dll.c (UNSPECIFIED_CORE_ADDR): New macro.
(match_dll): Use it.
Alan Modra [Thu, 16 Jan 2014 23:01:01 +0000 (09:31 +1030)]
daily update
Tom Tromey [Sat, 28 Dec 2013 05:22:07 +0000 (22:22 -0700)]
rearrange struct value to save memory
This patch rearranges struct value a tiny bit, moving the "regnum"
field into a hole. This saves 8 bytes per value on a 64-bit machine,
and 4 bytes per value on a 32 bit machine. I think it does not
negatively affect readability or performance.
Built and regtested on x86-64 Fedora 18.
2014-01-16 Tom Tromey <tromey@redhat.com>
* value.c (struct value) <regnum>: Move earlier.
Tom Tromey [Wed, 18 Dec 2013 15:27:54 +0000 (08:27 -0700)]
remove extended_remote_create_inferior_1
I noticed that extended_remote_create_inferior_1 is called from a
single spot. This patch unifies the callee and caller. It's just a
simple cleanup that made the coming refactoring simpler.
2014-01-16 Tom Tromey <tromey@redhat.com>
* remote.c (extended_remote_create_inferior): Rename from
extended_remote_create_inferior_1. Add "ops" argument. Remove
old implementation.
Pedro Alves [Thu, 16 Jan 2014 17:43:26 +0000 (17:43 +0000)]
Fix gdb.trace/mi-traceframe-changed.exp on s390.
The test fails on s390 with:
-trace-find frame-number 0^M
&"PC not available\n"^M
^done,found="1",tracepoint="1",traceframe="0",frame={level="-1",addr="<unavailable>",func="??",args=[]}^M
(gdb) ^M
FAIL: gdb.trace/mi-traceframe-changed.exp: tfile: -trace-find frame-number 0
tfile knows to infer the PC from the tracepoint's address if the PC
wasn't collected (tfile_fetch_registers) but, that only works on
targets whose PC register is a raw register, and on s390, the PC
register is a pseudo register.
But even if GDB doesn't know how to infer the value of PC, saying the
current frame is level -1 is a bug:
^done,found="1",tracepoint="1",traceframe="0",frame={level="-1",addr="<unavailable>",func="??",args=[]}^M
^^^^^^^^^
'-1' is the level of the sentinel frame, which should never be visible.
This is caused by the s390's heuristic unwinder accepting the frame
(the fallback heuristic unwinders _always_ accept the frame), but then
the unwind->this_id method throws that "PC not available\n" error.
IOW, the s390's heuristic unwinder was never adjusted to handle
unavailable register values gracefully, which can happen with e.g., a
trimmed core file too.
This is just the minimal necessary for
<unavailable> frames, which at least gets us:
(gdb) tfind
Found trace frame 0, tracepoint 1
#0 <unavailable> in ?? ()
That is, frame #0 instead of -1.
We could get better info out of "info frame" (this patch makes us show
"outermost"), but this change would still be necessary.
gdb/
2014-01-16 Pedro Alves <palves@redhat.com>
* s390-linux-tdep.c (s390_frame_unwind_cache): Swallow
NOT_AVAILABLE_ERROR errors while parsing the prologue or reading
the backchain.
Doug Evans [Thu, 16 Jan 2014 17:29:10 +0000 (09:29 -0800)]
dwarf2read.c (open_and_init_dwp_file): Fix typo in comment.
Markus Metzger [Mon, 6 May 2013 14:04:46 +0000 (16:04 +0200)]
record-btrace: add (reverse-)stepping support
Provide to_resume and to_wait target methods for the btrace record target
to allow reverse stepping and replay support.
Replay is limited in the sense that only stepping and source correlation
are supported. We do not record data and thus can not show variables.
Non-stop mode is not working. Do not allow record-btrace in non-stop mode.
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* btrace.h (btrace_thread_flag): New.
(struct btrace_thread_info) <flags>: New.
* record-btrace.c (record_btrace_resume_thread)
(record_btrace_find_thread_to_move, btrace_step_no_history)
(btrace_step_stopped, record_btrace_start_replaying)
(record_btrace_step_thread, record_btrace_decr_pc_after_break)
(record_btrace_find_resume_thread): New.
(record_btrace_resume, record_btrace_wait): Extend.
(record_btrace_can_execute_reverse): New.
(record_btrace_open): Fail in non-stop mode.
(record_btrace_set_replay): Split into this, ...
(record_btrace_stop_replaying): ... this, ...
(record_btrace_clear_histories): ... and this.
(init_record_btrace_ops): Init to_can_execute_reverse.
* NEWS: Announce it.
testsuite/
* gdb.btrace/delta.exp: Check reverse stepi.
* gdb.btrace/tailcall.exp: Update. Add stepping tests.
* gdb.btrace/finish.exp: New.
* gdb.btrace/next.exp: New.
* gdb.btrace/nexti.exp: New.
* gdb.btrace/record_goto.c: Add comments.
* gdb.btrace/step.exp: New.
* gdb.btrace/stepi.exp: New.
* gdb.btrace/multi-thread-step.c: New.
* gdb.btrace/multi-thread-step.exp: New.
* gdb.btrace/rn-dl-bind.c: New.
* gdb.btrace/rn-dl-bind.exp: New.
* gdb.btrace/data.c: New.
* gdb.btrace/data.exp: New.
* gdb.btrace/Makefile.in (EXECUTABLES): Add new.
doc/
* gdb.texinfo: Document limited reverse/replay support
for target record-btrace.
Markus Metzger [Wed, 18 Dec 2013 10:09:34 +0000 (11:09 +0100)]
target: allow decr_pc_after_break to be defined by the target
Allow the target to define which value to use in decr_pc_after_break.
It defaults to gdbarch_decr_pc_after_break (GDBARCH).
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* target.h (struct target_ops) <to_decr_pc_after_break>: New.
(forward_target_decr_pc_after_break)
(target_decr_pc_after_break): New.
* target.c (forward_target_decr_pc_after_break)
(target_decr_pc_after_break): New.
* aix-thread.c (aix_thread_wait): Call target_decr_pc_after_break
instead of gdbarch_decr_pc_after_break.
* darwin-nat.c (cancel_breakpoint): Call target_decr_pc_after_break
instead of gdbarch_decr_pc_after_break.
* infrun.c (adjust_pc_after_break): Call target_decr_pc_after_break
instead of gdbarch_decr_pc_after_break.
* linux-nat.c (cancel_breakpoint): Call target_decr_pc_after_break
instead of gdbarch_decr_pc_after_break.
* linux-thread-db.c (check_event): Call target_decr_pc_after_break
instead of gdbarch_decr_pc_after_break.
* record-full.c (record_full_wait_1): Call target_decr_pc_after_break
instead of gdbarch_decr_pc_after_break.
Markus Metzger [Tue, 10 Sep 2013 10:27:14 +0000 (12:27 +0200)]
record-btrace: show trace from enable location
The btrace record target shows the branch trace from the location of the first
branch destination. This is the first BTS records.
After adding incremental updates, we can now add a dummy record for the current
PC when we enable tracing so we show the trace from the location where branch
tracing has been enabled.
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* btrace.c: Include regcache.h.
(btrace_add_pc): New.
(btrace_enable): Call btrace_add_pc.
(btrace_is_empty): New.
* btrace.h (btrace_is_empty): New.
* record-btrace.c (require_btrace, record_btrace_info): Call
btrace_is_empty.
testsuite/
* gdb.btrace/Makefile.in (EXECUTABLES): Add delta.
* gdb.btrace/exception.exp: Update.
* gdb.btrace/instruction_history.exp: Update.
* gdb.btrace/record_goto.exp: Update.
* gdb.btrace/tailcall.exp: Update.
* gdb.btrace/unknown_functions.exp: Update.
* gdb.btrace/delta.exp: New.
Markus Metzger [Mon, 3 Jun 2013 13:39:35 +0000 (15:39 +0200)]
btrace, gdbserver: read branch trace incrementally
Read branch trace data incrementally and extend the current trace rather than
discarding it and reading the entire trace buffer each time.
If the branch trace buffer overflowed, we can't extend the current trace so we
discard it and start anew by reading the entire branch trace buffer.
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* common/linux-btrace.c (perf_event_read_bts, linux_read_btrace):
Support delta reads.
(linux_disable_btrace): Change return type.
* common/linux-btrace.h (linux_read_btrace): Change parameters
and return type to allow error reporting. Update users.
(linux_disable_btrace): Change return type. Update users.
* common/btrace-common.h (btrace_read_type) <BTRACE_READ_DELTA>:
New.
(btrace_error): New.
(btrace_block) <begin>: Comment on BEGIN == 0.
* btrace.c (btrace_compute_ftrace): Start from the end of
the current trace.
(btrace_stitch_trace, btrace_clear_history): New.
(btrace_fetch): Read delta trace, return if replaying.
(btrace_clear): Move clear history code to btrace_clear_history.
(parse_xml_btrace): Throw an error if parsing failed.
* target.h (struct target_ops) <to_read_btrace>: Change parameters
and return type to allow error reporting.
(target_read_btrace): Change parameters and return type to allow
error reporting.
* target.c (target_read_btrace): Update.
* remote.c (remote_read_btrace): Support delta reads. Pass
errors on.
* NEWS: Announce it.
gdbserver/
* target.h (target_ops) <read_btrace>: Change parameters and
return type to allow error reporting.
* server.c (handle_qxfer_btrace): Support delta reads. Pass
trace reading errors on.
* linux-low.c (linux_low_read_btrace): Pass trace reading
errors on.
(linux_low_disable_btrace): New.
Markus Metzger [Wed, 27 Mar 2013 08:49:47 +0000 (09:49 +0100)]
record-btrace: extend unwinder
Extend the always failing unwinder to provide the PC based on the call
structure detected in the branch trace.
The unwinder supports normal frames and tailcall frames.
Inline frames are not supported.
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* record.h (record_btrace_frame_unwind)
(record_btrace_tailcall_frame_unwind): New declarations.
* dwarf2-frame: Include record.h
(dwarf2_frame_cfa): Throw an error for btrace frames.
* record-btrace.c: Include hashtab.h.
(btrace_get_bfun_name): New.
(btrace_call_history): Call btrace_get_bfun_name.
(struct btrace_frame_cache): New.
(bfcache): New.
(bfcache_hash, bfcache_eq, bfcache_new): New.
(btrace_get_frame_function): New.
(record_btrace_frame_unwind_stop_reason): Allow unwinding.
(record_btrace_frame_this_id): Compute own id.
(record_btrace_frame_prev_register): Provide PC, throw_error
for all other registers.
(record_btrace_frame_sniffer): Detect btrace frames.
(record_btrace_tailcall_frame_sniffer): New.
(record_btrace_frame_dealloc_cache): New.
(record_btrace_frame_unwind): Add new functions.
(record_btrace_tailcall_frame_unwind): New.
(_initialize_record_btrace): Allocate cache.
* btrace.c (btrace_clear): Call reinit_frame_cache.
* NEWS: Announce it.
testsuite/
* gdb.btrace/record_goto.exp: Add backtrace test.
* gdb.btrace/tailcall.exp: Add backtrace test.
Markus Metzger [Mon, 25 Mar 2013 15:01:33 +0000 (16:01 +0100)]
record-btrace: add record goto target methods
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* record-btrace.c (record_btrace_set_replay)
(record_btrace_goto_begin, record_btrace_goto_end)
(record_btrace_goto): New.
(init_record_btrace_ops): Initialize them.
* NEWS: Announce it.
testsuite/
* gdb.btrace/Makefile.in (EXECUTABLES): Add record_goto.
* gdb.btrace/record_goto.c: New.
* gdb.btrace/record_goto.exp: New.
* gdb.btrace/x86-record_goto.S: New.
Markus Metzger [Fri, 3 May 2013 08:51:13 +0000 (10:51 +0200)]
record-btrace: provide target_find_new_threads method
The "info threads" command tries to read memory, which is not possible during
replay. This results in an error message and aborts the command without showing
the existing threads.
Provide a to_find_new_threads target method to skip the search while replaying.
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* record-btrace.c (record_btrace_find_new_threads)
(record_btrace_thread_alive): New.
(init_record_btrace_ops): Initialize to_find_new_threads and
to_thread_alive.
Markus Metzger [Mon, 25 Mar 2013 14:44:43 +0000 (15:44 +0100)]
record-btrace: add to_wait and to_resume target methods.
Add simple to_wait and to_resume target methods that prevent stepping when the
current replay position is not at the end of the execution log.
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* record-btrace.c (record_btrace_resume): New.
(record_btrace_wait): New.
(init_record_btrace_ops): Initialize to_wait and to_resume.
Markus Metzger [Wed, 24 Apr 2013 11:24:11 +0000 (13:24 +0200)]
record-btrace: provide xfer_partial target method
Provide the xfer_partial target method for the btrace record target.
Only allow memory read accesses to readonly memory while we're replaying,
except for inserting and removing breakpoints.
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* record-btrace.c (record_btrace_xfer_partial)
(record_btrace_insert_breakpoint, record_btrace_remove_breakpoint)
(record_btrace_allow_memory_access): New.
(init_record_btrace_ops): Initialize new methods.
* target.c (raw_memory_xfer_partial): Bail out if target reports
that this memory is not available.
Markus Metzger [Tue, 17 Dec 2013 09:49:03 +0000 (10:49 +0100)]
target, breakpoint: allow insert/remove breakpoint to be forwarded
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* target.h (target_ops) <to_insert_breakpoint>
<to_remove_breakpoint>: Add target_ops parameter.
(forward_target_insert_breakpoint): New.
(forward_target_remove_breakpoint): New.
(memory_remove_breakpoint, memory_insert_breakpoint):
Add target_ops parameter.
* target.c (target_insert_breakpoint): Split into this and ...
(forward_target_insert_breakpoint): ... this.
(target_remove_breakpoint): Split into this and ...
(forward_target_remove_breakpoint): ... this.
(debug_to_insert_breakpoint): Add target_ops parameter.
Call forward_target_insert_breakpoint.
(debug_to_remove_breakpoint): Add target_ops parameter.
Call forward_target_remove_breakpoint.
(update_current_target): Do not inherit or default to_insert_breakpoint
and to_remove_breakpoint.
* corelow.c (ignore): Add target_ops parameter.
* exec.c (ignore): Add target_ops parameter.
* mem-break.c (memory_insert_breakpoint, memory_remove_breakpoint):
Add target_ops parameter.
* monitor.c (monitor_insert_breakpoint, monitor_remove_breakpoint):
Add target_ops parameter.
* nto-procfs.c (procfs_insert_breakpoint, procfs_remove_breakpoint):
Add target_ops parameter.
* record-full.c (record_full_beneath_to_insert_breakpoint)
(record_full_beneath_to_remove_breakpoint, tmp_to_insert_breakpoint)
(tmp_to_remove_breakpoint, record_full_insert_breakpoint)
(record_full_remove_breakpoint, record_full_core_insert_breakpoint)
(record_full_core_remove_breakpoint): Add target_ops parameter.
Update users.
(record_full_beneath_to_insert_breakpoint_ops)
(record_full_beneath_to_remove_breakpoint_ops)
(tmp_to_insert_breakpoint_ops, tmp_to_remove_breakpoint_ops): New.
(record_full_open): Initialize tmp_to_insert_breakpoint_ops,
tmp_to_remove_breakpoint_ops,
record_full_beneath_to_insert_breakpoint_ops, and
record_full_beneath_to_remove_breakpoint_ops.
* remote-m32r-sdi.c (m32r_insert_breakpoint)
(m32r_remove_breakpoint): Add target_ops parameter.
* remote-mips.c (mips_insert_breakpoint, mips_remove_breakpoint):
Add target_ops parameter.
* remote.c (remote_insert_breakpoint, remote_remove_breakpoint):
Add target_ops parameter.
Markus Metzger [Mon, 18 Mar 2013 15:47:01 +0000 (16:47 +0100)]
record-btrace, frame: supply target-specific unwinder
Supply a target-specific frame unwinder for the record-btrace target that does
not allow unwinding while replaying.
2013-02-11 Jan Kratochvil <jan.kratochvil@redhat.com>
Markus Metzger <markus.t.metzger@intel.com>
gdb/
* record-btrace.c: Include frame-unwind.h.
(record_btrace_frame_unwind_stop_reason)
(record_btrace_frame_this_id, record_btrace_frame_prev_register)
(record_btrace_frame_sniffer, record_btrace_frame_unwind):
New.
(init_record_btrace_ops): Install it.
Markus Metzger [Mon, 18 Mar 2013 15:43:05 +0000 (16:43 +0100)]
frame: do not assume unwinding will succeed
In get_frame_unwind_stop_reason, remove the assumption that further frame
unwinding will succeed.
gdb/
2013-02-11 Jan Kratochvil <jan.kratochvil@redhat.com>
* frame.c (get_frame_unwind_stop_reason): Unconditionally call
get_prev_frame_1.
Markus Metzger [Mon, 18 Mar 2013 15:43:05 +0000 (16:43 +0100)]
frame, cfa: check unwind stop reason first
Swap the unwind stop reason check and the unwinder check to allow
non-dwarf2 frame types to fail with a recoverable error.
gdb/
2013-02-11 Jan Kratochvil <jan.kratochvil@redhat.com>
* dwarf2-frame.c (dwarf2_frame_cfa): Move UNWIND_UNAVAILABLE check
earlier.
Markus Metzger [Mon, 18 Mar 2013 15:43:05 +0000 (16:43 +0100)]
frame, backtrace: allow targets to supply a frame unwinder
Allow targets to supply their own target-specific frame unwinders; one for
normal frames and one for tailcall frames. If a target-specific unwinder
is supplied, it will be chosen before any other unwinder.
The original patch has been split into this and the next two patches.
gdb/
2013-02-11 Jan Kratochvil <jan.kratochvil@redhat.com>
* frame-unwind.c: Include target.h.
(frame_unwind_try_unwinder): New function with code from ...
(frame_unwind_find_by_frame): ... here. New variable
unwinder_from_target, call also target_get_unwinder)
(target_get_tailcall_unwinder, and frame_unwind_try_unwinder for it.
* target.c (target_get_unwinder, target_get_tailcall_unwinder): New.
* target.h (struct target_ops): New fields to_get_unwinder and
to_get_tailcall_unwinder.
(target_get_unwinder, target_get_tailcall_unwinder): New declarations.
Markus Metzger [Thu, 28 Mar 2013 09:38:24 +0000 (10:38 +0100)]
record-btrace: supply register target methods
Supply target methods to allow reading the PC. Forbid anything else.
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* record-btrace.c (record_btrace_fetch_registers)
(record_btrace_store_registers)
(record_btrace_to_prepare_to_store): New.
(init_record_btrace_ops): Add the above.
Markus Metzger [Mon, 13 Jan 2014 13:24:50 +0000 (14:24 +0100)]
Add target_ops argument to to_prepare_to_store
2013-12-17 Tom Tromey <tromey@redhat.com>
* windows-nat.c (windows_prepare_to_store): Add 'self' argument.
* target.h (struct target_ops) <to_prepare_to_store>: Add
argument.
(target_prepare_to_store): Add argument.
* target.c (debug_to_prepare_to_store): Add argument.
(update_current_target): Update.
* remote.c (remote_prepare_to_store): Add 'self' argument.
* remote-sim.c (gdbsim_prepare_to_store): Add 'self' argument.
* remote-mips.c (mips_prepare_to_store): Add 'self' argument.
* remote-m32r-sdi.c (m32r_prepare_to_store): Add 'self' argument.
* record-full.c (record_full_core_prepare_to_store): Add 'self'
argument.
* ravenscar-thread.c (ravenscar_prepare_to_store): Add argument.
* nto-procfs.c (procfs_prepare_to_store): Add 'self' argument.
* monitor.c (monitor_prepare_to_store): Add 'self' argument.
* inf-child.c (inf_child_prepare_to_store): Add 'self' argument.
* go32-nat.c (go32_prepare_to_store): Add 'self' argument.
Markus Metzger [Fri, 26 Apr 2013 06:37:06 +0000 (08:37 +0200)]
btrace: add replay position to btrace thread info
Add a branch trace instruction iterator pointing to the current replay position
to the branch trace thread info struct.
Free the iterator when btrace is cleared.
Start at the replay position for the instruction and function-call histories.
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* btrace.h (replay) <replay>: New.
(btrace_is_replaying): New.
* btrace.c (btrace_clear): Free replay iterator.
(btrace_is_replaying): New.
* record-btrace.c (record_btrace_is_replaying): New.
(record_btrace_info): Print insn number if replaying.
(record_btrace_insn_history): Start at replay position.
(record_btrace_call_history): Start at replay position.
(init_record_btrace_ops): Init to_record_is_replaying.
Markus Metzger [Wed, 17 Apr 2013 07:39:43 +0000 (09:39 +0200)]
record-btrace: make ranges include begin and end
The "record function-call-history" and "record instruction-history" commands
accept a range "begin, end". End is not included in both cases. Include it.
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* record-btrace.c (record_btrace_insn_history_range): Include
end.
(record_btrace_insn_history_from): Adjust range.
(record_btrace_call_history_range): Include
end.
(record_btrace_call_history_from): Adjust range.
* NEWS: Announce changes.
testsuite/
* gdb.btrace/function_call_history.exp: Update tests.
* gdb.btrace/instruction_history.exp: Update tests.
doc/
* gdb.texinfo (Process Record and Replay): Update documentation.
Markus Metzger [Thu, 18 Apr 2013 08:58:05 +0000 (10:58 +0200)]
record-btrace: optionally indent function call history
Add a new modifier /c to the "record function-call-history" command to
indent the function name based on its depth in the call stack.
Also reorder the optional fields to have the indentation at the very beginning.
Prefix the insn range (/i modifier) with "inst ".
Prefix the source line (/l modifier) with "at ".
Change the range syntax from "begin-end" to "begin,end" to allow copy&paste to
the "record instruction-history" and "list" commands.
Adjust the respective tests and add new tests for the /c modifier.
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* record.h (enum record_print_flag)
<record_print_indent_calls>: New.
* record.c (get_call_history_modifiers): Recognize /c modifier.
(_initialize_record): Document /c modifier.
* record-btrace.c (btrace_call_history): Add btinfo parameter.
Reorder fields. Optionally indent the function name. Update
all users.
* NEWS: Announce changes.
testsuite/
* gdb.btrace/function_call_history.exp: Fix expected field
order for "record function-call-history".
Add new tests for "record function-call-history /c".
* gdb.btrace/exception.cc: New.
* gdb.btrace/exception.exp: New.
* gdb.btrace/tailcall.exp: New.
* gdb.btrace/x86-tailcall.S: New.
* gdb.btrace/x86-tailcall.c: New.
* gdb.btrace/unknown_functions.c: New.
* gdb.btrace/unknown_functions.exp: New.
* gdb.btrace/Makefile.in (EXECUTABLES): Add new.
doc/
* gdb.texinfo (Process Record and Replay): Document new /c
modifier accepted by "record function-call-history".
Add /i modifier to "record function-call-history" example.
Markus Metzger [Wed, 10 Apr 2013 11:43:41 +0000 (13:43 +0200)]
btrace: increase buffer size
Try to allocate as much buffer as we can for each thread with a maximum
of 64KB.
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* common/linux-btrace.c (linux_enable_btrace): Enlarge buffer.
Markus Metzger [Mon, 13 May 2013 12:57:42 +0000 (14:57 +0200)]
record-btrace: start counting at one
The record instruction-history and record-function-call-history commands start
counting instructions at zero. This is somewhat unintuitive when we start
navigating in the recorded instruction history. Start at one, instead.
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* btrace.c (ftrace_new_function): Start counting at one.
* record-btrace.c (record_btrace_info): Adjust number of calls
and insns.
* NEWS: Announce it.
testsuite/
* gdb.btrace/instruction_history.exp: Update.
* gdb.btrace/function_call_history.exp: Update.
Markus Metzger [Tue, 26 Mar 2013 10:32:20 +0000 (11:32 +0100)]
record-btrace: fix insn range in function call history
With the "/i" modifier, we print the instruction number range in the
"record function-call-history" command as [begin, end).
It would be more intuitive if we printed the range as [begin, end].
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* record-btrace.c (btrace_call_history_insn_range): Print
insn range as [begin, end].
Markus Metzger [Fri, 22 Mar 2013 13:32:47 +0000 (14:32 +0100)]
btrace: change branch trace data structure
The branch trace is represented as 3 vectors:
- a block vector
- a instruction vector
- a function vector
Each vector (except for the first) is computed from the one above.
Change this into a graph where a node represents a sequence of instructions
belonging to the same function and where we have three types of edges to connect
the function segments:
- control flow
- same function (instance)
- call stack
This allows us to navigate in the branch trace. We will need this for "record
goto" and reverse execution.
This patch introduces the data structure and computes the control flow edges.
It also introduces iterator structs to simplify iterating over the branch trace
in control-flow order.
It also fixes PR gdb/15240 since now recursive calls are handled correctly.
Fix the test that got the number of expected fib instances and also the
function numbers wrong.
The current instruction had been part of the branch trace. This will look odd
once we start support for reverse execution. Remove it. We still keep it in
the trace itself to allow extending the branch trace more easily in the future.
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* btrace.h (struct btrace_func_link): New.
(enum btrace_function_flag): New.
(struct btrace_inst): Rename to ...
(struct btrace_insn): ...this. Update all users.
(struct btrace_func) <ibegin, iend>: Remove.
(struct btrace_func_link): New.
(struct btrace_func): Rename to ...
(struct btrace_function): ...this. Update all users.
(struct btrace_function) <segment, flow, up, insn, insn_offset)
(number, level, flags>: New.
(struct btrace_insn_iterator): Rename to ...
(struct btrace_insn_history): ...this.
Update all users.
(struct btrace_insn_iterator, btrace_call_iterator): New.
(struct btrace_target_info) <btrace, itrace, ftrace>: Remove.
(struct btrace_target_info) <begin, end, level>
<insn_history, call_history>: New.
(btrace_insn_get, btrace_insn_number, btrace_insn_begin)
(btrace_insn_end, btrace_insn_prev, btrace_insn_next)
(btrace_insn_cmp, btrace_find_insn_by_number, btrace_call_get)
(btrace_call_number, btrace_call_begin, btrace_call_end)
(btrace_call_prev, btrace_call_next, btrace_call_cmp)
(btrace_find_function_by_number, btrace_set_insn_history)
(btrace_set_call_history): New.
* btrace.c (btrace_init_insn_iterator)
(btrace_init_func_iterator, compute_itrace): Remove.
(ftrace_print_function_name, ftrace_print_filename)
(ftrace_skip_file): Change
parameter to const.
(ftrace_init_func): Remove.
(ftrace_debug): Use new btrace_function fields.
(ftrace_function_switched): Also consider gaining and
losing symbol information).
(ftrace_print_insn_addr, ftrace_new_call, ftrace_new_return)
(ftrace_new_switch, ftrace_find_caller, ftrace_new_function)
(ftrace_update_caller, ftrace_fixup_caller, ftrace_new_tailcall):
New.
(ftrace_new_function): Move. Remove debug print.
(ftrace_update_lines, ftrace_update_insns): New.
(ftrace_update_function): Check for call, ret, and jump.
(compute_ftrace): Renamed to ...
(btrace_compute_ftrace): ...this. Rewritten to compute call
stack.
(btrace_fetch, btrace_clear): Updated.
(btrace_insn_get, btrace_insn_number, btrace_insn_begin)
(btrace_insn_end, btrace_insn_prev, btrace_insn_next)
(btrace_insn_cmp, btrace_find_insn_by_number, btrace_call_get)
(btrace_call_number, btrace_call_begin, btrace_call_end)
(btrace_call_prev, btrace_call_next, btrace_call_cmp)
(btrace_find_function_by_number, btrace_set_insn_history)
(btrace_set_call_history): New.
* record-btrace.c (require_btrace): Use new btrace thread
info fields.
(record_btrace_info, btrace_insn_history)
(record_btrace_insn_history, record_btrace_insn_history_range):
Use new btrace thread info fields and new iterator.
(btrace_func_history_src_line): Rename to ...
(btrace_call_history_src_line): ...this. Use new btrace
thread info fields.
(btrace_func_history): Rename to ...
(btrace_call_history): ...this. Use new btrace thread info
fields and new iterator.
(record_btrace_call_history, record_btrace_call_history_range):
Use new btrace thread info fields and new iterator.
testsuite/
* gdb.btrace/function_call_history.exp: Fix expected function
trace.
* gdb.btrace/instruction_history.exp: Initialize traced.
Remove traced_functions.
Markus Metzger [Wed, 18 Dec 2013 13:13:54 +0000 (14:13 +0100)]
frame: add frame_id_build_unavailable_stack_special
Add a function to build a frame_id for a frame with unavailable stack
and with a special identifier address.
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* frame.h (frame_id_build_unavailable_stack_special): New.
* frame.c (frame_id_build_unavailable_stack_special): New.
Markus Metzger [Fri, 22 Mar 2013 14:56:56 +0000 (15:56 +0100)]
gdbarch: add instruction predicate methods
Add new methods to gdbarch for analyzing the instruction at a given address.
Implement those methods for i386 and amd64 architectures.
This is needed by "record btrace" to detect function calls in the
execution trace.
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* amd64-tdep.c (amd64_classify_insn_at, amd64_insn_is_call)
(amd64_insn_is_ret, amd64_insn_is_jump, amd64_jmp_p): New.
(amd64_init_abi): Add insn_is_call, insn_is_ret, and insn_is_jump
to gdbarch.
* i386-tdep.c (i386_insn_is_call, i386_insn_is_ret)
(i386_insn_is_jump, i386_jmp_p): New.
(i386_gdbarch_init): Add insn_is_call, insn_is_ret, and
insn_is_jump to gdbarch.
* gdbarch.sh (insn_is_call, insn_is_ret, insn_is_jump): New.
* gdbarch.h: Regenerated.
* gdbarch.c: Regenerated.
* arch-utils.h (default_insn_is_call, default_insn_is_ret)
(default_insn_is_jump): New.
* arch-utils.c (default_insn_is_call, default_insn_is_ret)
(default_insn_is_jump): New.
Markus Metzger [Mon, 30 Sep 2013 13:00:16 +0000 (15:00 +0200)]
btrace: uppercase btrace_read_type
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* common/btrace-common.h (btrace_read_type) <btrace_read_all>:
Change to ...
(btrace_read_type) <BTRACE_READ_ALL>: ... this. Update users.
(btrace_read_type) <btrace_read_new>: Change to ...
(btrace_read_type) <BTRACE_READ_NEW>: ... this. Update users.
Markus Metzger [Mon, 3 Jun 2013 12:32:15 +0000 (14:32 +0200)]
btrace, linux: fix memory leak when reading branch trace
When it takes more than one iteration to read the BTS trace, the trace from the
previous iteration is leaked. Fix it.
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* common/linux-btrace.c (linux_read_btrace): Free trace from
previous iteration.
Markus Metzger [Wed, 18 Dec 2013 13:47:17 +0000 (14:47 +0100)]
btrace, test: fix multi-line btrace tests
For testing multi-line test output, gdb.btrace tests used the following
pattern:
gdb_test "..." "
...\r
..."
Change this to:
gdb_test "..." [join [list \
"..." \
"..."] "\r\n"]
Also extract repeated tests into a test function and shorten or remove
test messages.
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
testsuite/
* gdb.btrace/function_call_history.exp: Update
* gdb.btrace/instruction_history.exp: Update.
Markus Metzger [Thu, 16 Jan 2014 08:47:51 +0000 (09:47 +0100)]
test, btrace: update expected text
The error message for starting recording twice changed.
Update the expected text to fix resulting regressions.
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* gdb.btrace/enable.exp: Update expected text.
Omair Javaid [Thu, 16 Jan 2014 11:00:00 +0000 (11:00 +0000)]
Fix testsuite/gdb.dwarf2/dw2-dos-drive.exp on ARM.
This test currently fails on ARM:
(gdb) PASS: gdb.dwarf2/dw2-dos-drive.exp: set breakpoint pending off
break 'z:file.c':func
Cannot access memory at address 0x0
The error is GDB trying to read the prologue at the breakpoint's
address, and failing:
38 throw_error() exceptions.c:444 0x0016728c
37 memory_error() corefile.c:204 0x001d1fcc
36 read_memory() corefile.c:223 0x001d201a
35 read_memory_unsigned_integer() corefile.c:312 0x001d2166
34 arm_skip_prologue() arm-tdep.c:1452 0x00054270
static CORE_ADDR
arm_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
{
...
for (skip_pc = pc; skip_pc < limit_pc; skip_pc += 4)
{
inst = read_memory_unsigned_integer (skip_pc, 4, byte_order_for_code);
The test doesn't execute the compiled object's code, so GDB will try
to read memory from the binary's sections. Instructions on ARM are
4-byte wide, and thus ARM's prologue scanner reads in 4-byte chunks.
As the section 'func' is put at is only 1 byte long, and no other
section is allocated contiguously:
...
Sections:
Idx Name Size VMA LMA File off Algn
0 .text
00000001 00000000 00000000 00000034 2**0
CONTENTS, ALLOC, LOAD, READONLY, CODE
...
... the exec target fails the read the 4 bytes.
Fix this by increasing the function's size.
gdb/testsuite/ChangeLog:
2014-01-16 Omair Javaid <Omair.Javaid@linaro.org>
* gdb.dwarf2/dw2-dos-drive.S: Increase text section size to 4
bytes.
H.J. Lu [Wed, 15 Jan 2014 20:53:04 +0000 (12:53 -0800)]
Skip directories with LIBPATH_SUFFIX_SKIP suffix
On Linux/x86-64, when binutils is configured with --libdir=/usr/lib64,
genscripts.sh treats /usr/lib64 as the default search directory. It
puts /usr/lib64 in linker scripts for all emulations, like
---
/* Script for -z combreloc: combine and sort reloc sections */
OUTPUT_FORMAT("elf32-i386", "elf32-i386",
"elf32-i386")
OUTPUT_ARCH(i386)
ENTRY(_start)
SEARCH_DIR("/usr/x86_64-redhat-linux/lib32");
SEARCH_DIR("/usr/i386-redhat-linux/lib32"); SEARCH_DIR("/usr/lib6432");
SEARCH_DIR("/usr/local/lib32"); SEARCH_DIR("/lib32");
SEARCH_DIR("/usr/lib32"); SEARCH_DIR("/usr/i386-redhat-linux/lib");
SEARCH_DIR("/usr/lib64"); SEARCH_DIR("/usr/local/lib");
SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib");
---
/usr/lib6432 is odd and /usr/lib64 is wrong. This patch changes
genscripts.sh to check LIBPATH_SUFFIX_SKIP if it is defined. It
skips directories with LIBPATH_SUFFIX_SKIP suffix.
PR ld/16456
* genscripts.sh: Don't search directory with LIBPATH_SUFFIX_SKIP
suffix.
* emulparams/elf32_x86_64.sh (LIBPATH_SUFFIX_SKIP): Set to 64
for elf32_x86_64 emulation.
* emulparams/elf_i386.sh (LIBPATH_SUFFIX_SKIP): Set to 64
for elf_i386 emulation.
Alan Modra [Thu, 16 Jan 2014 01:17:25 +0000 (11:47 +1030)]
Tidy ld use of bfd_section userdata.
A long time ago ld made use of userdata to tie an output section to
its lang_input_statement_struct object file. Some time later Joern
made map file printing of symbols at lot faster, using userdata on
input sections. That complicated allocation of userdata, and when the
output section use disappeared a year later, the code wasn't properly
cleaned up. This patch does that cleanup, and also tidies the symbol
printing code to not allocate userdata where it won't be needed. We
don't print symbols defined in the absolute section or in output
sections.
* ld.h (fat_section_userdata_type, get_userdata): Move to..
* ldlang.h (input_section_userdata_type, get_userdata): ..here.
* ldlang.c (init_map_userdata): Delete. Fold into..
(sort_def_symbol): ..here. Don't attach input section userdata
to output sections or global bfd sections.
(lang_map): Don't pre-allocate input section userdata.
(init_os): Don't allocate userdata for output sections.
(print_all_symbols): Update.
Alan Modra [Thu, 16 Jan 2014 01:20:28 +0000 (11:50 +1030)]
Fix mips segfault on GOT access of absolute symbol
When a symbol is absolute, this code in mips_elf_record_got_page_entry
entry = bfd_zalloc (sec->owner, sizeof (*entry));
segfaults. sec == bfd_abs_section_ptr and sec->owner == NULL.
* elfxx-mips.c (mips_elf_record_got_page_entry): Pass in a
mips_elf_traverse_got_arg* rather than mips_got_info*.
Adjust caller. Alloc on output_bfd rather than symbol section
owner.
Doug Evans [Thu, 16 Jan 2014 00:35:37 +0000 (16:35 -0800)]
delete thread_id_to_gdb_id, unused
* inferiors.c (thread_id_to_gdb_id): Delete.
* inferiors.h (thread_id_to_gdb_id): Delete.
Alan Modra [Wed, 15 Jan 2014 23:01:07 +0000 (09:31 +1030)]
daily update
Maciej W. Rozycki [Wed, 15 Jan 2014 22:17:53 +0000 (22:17 +0000)]
AArch64: gdb.base/float.exp: Fix `info float' test
* gdb.base/float.exp: Handle "aarch64*-*-*" targets.
Doug Evans [Wed, 15 Jan 2014 21:14:06 +0000 (13:14 -0800)]
* dwarf2read.c (open_and_init_dwp_file): Use pulongest to print uint32_t.
Tom Tromey [Tue, 31 Dec 2013 03:34:16 +0000 (20:34 -0700)]
move the "main" data into the per-BFD object
This adds the "main"-related data into the per-BFD. This is needed
because once symbol sharing across objfiles is complete, computing the
main name as a side effect of symbol reading will no longer work --
the symbols simply won't be re-read.
After this change, set_main_name is only used by the main_name
machinery itself, so this patch makes it static.
2014-01-15 Tom Tromey <tromey@redhat.com>
* dbxread.c (process_one_symbol): Use set_objfile_main_name.
* dwarf2read.c (read_partial_die): Use set_objfile_main_name.
* objfiles.c (get_objfile_bfd_data): Initialize language_of_main.
(set_objfile_main_name): New function.
* objfiles.h (struct objfile_per_bfd_storage) <name_of_main,
language_of_main>: New fields.
(set_objfile_main_name): Declare.
* symtab.c (find_main_name): Loop over objfiles to find the main
name and language.
(set_main_name): Now static.
(get_main_info): Add comment.
* symtab.h (set_main_name): Don't declare.
Tom Tromey [Tue, 31 Dec 2013 03:18:24 +0000 (20:18 -0700)]
move main name into the progspace
This moves the "main" name and language into an object attached to the
current progspace. This prevents problems if there are multiple
inferiors tha have different ideas of "main" -- which matters at least
for unwinding, see frame.c:inside_main_func.
2014-01-15 Tom Tromey <tromey@redhat.com>
* symtab.c (main_progspace_key): New global.
(struct main_info): New.
(name_of_main, language_of_main): Remove.
(get_main_info, main_info_cleanup): New function.
(set_main_name, main_name, main_language): Use get_main_info.
(_initialize_symtab): Initialize main_progspace_key.
Tom Tromey [Tue, 31 Dec 2013 03:05:34 +0000 (20:05 -0700)]
make language_of_main static
This makes the global language_of_main static. Now it can be set only
via a new argument to set_main_name.
2014-01-15 Tom Tromey <tromey@redhat.com>
* dbxread.c (process_one_symbol): Update.
* dwarf2read.c (read_partial_die): Update.
* symfile.c (set_initial_language): Call main_language.
* symtab.c (language_of_main): Now static.
(set_main_name): Add 'lang' parameter.
(find_main_name): Update.
(main_language): New function.
(symtab_observer_executable_changed): Update.
* symtab.h (set_main_name): Update.
(language_of_main): Remove.
(main_language): Declare.
Tom Tromey [Tue, 31 Dec 2013 13:57:18 +0000 (06:57 -0700)]
move the entry point info into the per-bfd object
This moves the entry point information into the per-BFD object and
arranges not to recompute it when it has already been computed.
2014-01-15 Tom Tromey <tromey@redhat.com>
* symfile.c (init_entry_point_info): Use new "initialized" field.
Update.
* objfiles.h (struct entry_point) <initialized>: New field.
(struct objfile_per_bfd_storage) <ei>: New field, moved from...
(struct objfile) <ei>: ...here. Remove.
* objfiles.c (entry_point_address_query): Update.
Tom Tromey [Tue, 31 Dec 2013 13:52:33 +0000 (06:52 -0700)]
relocate the entry point address when used
This changes the entry point to be unrelocated in the objfile, and
instead applies the relocation when it is used.
2014-01-15 Tom Tromey <tromey@redhat.com>
* objfiles.c (entry_point_address_query): Relocate entry point
address.
(objfile_relocate1): Do not relocate entry point address.
* objfiles.h (struct entry_info) <entry_point>: Update comment.
<the_bfd_section_index>: New field.
* symfile.c (init_entry_point_info): Find the entry point's
section.
Tom Tromey [Tue, 31 Dec 2013 09:47:37 +0000 (02:47 -0700)]
change solib-frv to use entry_point_address_query
This is just a minor cleanup in advance of some other changes, that
modifies solib-frv.c to use entry_point_address_query. I don't have a
good way to test this but I think it is obviously correct.
2014-01-15 Tom Tromey <tromey@redhat.com>
* solib-frv.c (enable_break): Use entry_point_address_query.
Omair Javaid [Fri, 3 Jan 2014 19:15:36 +0000 (00:15 +0500)]
gdb: Add a NEWS entry for ARM record/replay improvements
This patch adds a news entry about improvements in record-replay and
reverse debugging support for arm*-linux* targets.
gdb/ChangeLog:
2014-01-15 Omair Javaid <omair.javaid@linaro.org>
* NEWS: Add note on improved process record-replay on
arm*-linux* targets.
Omair Javaid [Thu, 9 Jan 2014 10:59:55 +0000 (15:59 +0500)]
gdb: ARM: Update configure.tgt and enable gdb.reverse testsuite
gdb/testsuite/ChangeLog:
2014-01-15 Omair Javaid <omair.javaid@linaro.org>
* lib/gdb.exp (supports_process_record): Return true for
arm*-linux*. (supports_reverse): Likewise.
Omair Javaid [Thu, 9 Jan 2014 10:33:55 +0000 (15:33 +0500)]
gdb: ARM: Add support for thumb32 instructions recording
gdb/ChangeLog:
2014-01-15 Omair Javaid <omair.javaid@linaro.org>
* arm-tdep.c (enum arm_record_result): New enum.
(arm_record_unsupported_insn): New function.
(arm_record_coproc_data_proc): Removed.
(thumb2_record_ld_st_multiple): New function.
(thumb2_record_ld_st_dual_ex_tbb): New function.
(thumb2_record_data_proc_sreg_mimm): New function.
(thumb2_record_ps_dest_generic): New function.
(thumb2_record_branch_misc_cntrl): New function.
(thumb2_record_str_single_data): New function.
(thumb2_record_ld_mem_hints): New function.
(thumb2_record_ld_word): New function.
(thumb2_record_lmul_lmla_div): New function.
(thumb2_record_decode_insn_handler): New function.
(decode_insn): Add thumb32 instruction handlers.
Omair Javaid [Thu, 9 Jan 2014 10:49:27 +0000 (15:49 +0500)]
gdb: ARM: Adds support for recording system call instructions
gdb/ChangeLog:
2014-01-15 Omair Javaid <omair.javaid@linaro.org>
* arm-linux-tdep.c: Include "record-full.h" and "linux-record.h".
(struct arm_linux_record_tdep): Declare.
(arm_canonicalize_syscall): New function.
(arm_all_but_pc_registers_record): New function.
(arm_linux_syscall_record): New function.
(arm_linux_init_abi): Add syscall recording constructs.
* arm-tdep.c (thumb_record_ldm_stm_swi): Update thumb syscall
decoding. (arm_record_coproc_data_proc): Update arm syscall
decoding.
* arm-tdep.h (struct gdbarch_tdep) <arm_swi_record>: Remove.
<arm_syscall_record>: New field.
* configure.tgt (arm*-*-linux*): Add linux-record.o to
gdb_target_obs.
Omair Javaid [Fri, 3 Jan 2014 19:15:32 +0000 (00:15 +0500)]
gdb: ARM: Fix for bug in pop instruction decoding
This patch fixes thumb push instruction recording by replacing base
register from pc to sp.
gdb/ChangeLog:
2014-01-15 Omair Javaid <omair.javaid@linaro.org>
* arm-tdep.c (thumb_record_misc): Update to use sp as base
register for push instruction recording.
Omair Javaid [Fri, 3 Jan 2014 19:15:31 +0000 (00:15 +0500)]
gdb: ARM: Fix for bugs in push and ldm instructions decoding
This patch corrects the register numbers and removes multiple loops in
recording procedure of instructions involving multiple registers.
gdb/ChangeLog:
2014-01-15 Omair Javaid <omair.javaid@linaro.org>
* arm-tdep.c (thumb_record_misc): Update to correct logical
error while recording ldm, ldmia and pop instructions.
Omair Javaid [Thu, 9 Jan 2014 10:35:45 +0000 (15:35 +0500)]
gdb: ARM: Fix for memory record corruption due to 64bit addresses
gdb/ChangeLog:
2014-01-15 Omair Javaid <omair.javaid@linaro.org>
* arm-tdep.c (struct arm_mem_r) <addr>: Change type to uint32_t.
Pedro Alves [Wed, 15 Jan 2014 16:18:04 +0000 (16:18 +0000)]
Fix go32-nat.c build fallout from to_detach constification.
The recent constification of to_detach missed updating the forward
declaration of go32_detach, breaking the build:
../../src/gdb/go32-nat.c:387:1: error: conflicting types for 'go32_detach'
../../src/gdb/go32-nat.c:240:13: note: previous declaration of 'go32_detach' was here
go32_detach is actually defined before it's ever used, making the
forward declaration is unnecessary. So we can just remove it instead
of updating it. While at it, remove all others in the same situation.
Tested by building a djgpp gdb.
gdb/
2014-01-15 Pedro Alves <palves@redhat.com>
* go32-nat.c (go32_open, go32_close, go32_attach, go32_detach)
(go32_resume, go32_fetch_registers, store_register)
(go32_store_registers, go32_prepare_to_store)
(go32_xfer_memory, go32_files_info, go32_kill_inferior)
(go32_create_inferior, go32_can_run, go32_terminal_init)
(go32_terminal_inferior, go32_terminal_ours): Delete forward
declarations.
H.J. Lu [Wed, 15 Jan 2014 15:43:19 +0000 (07:43 -0800)]
Silence uninitialized warning on ehdr_start_save
Older GCC, like 4.1/4.2, will issue an uninitialized warning on
ehdr_start_save. This patch silences by using
struct bfd_link_hash_entry ehdr_start_save = ehdr_start_save;
* emultempl/elf32.em (gld${EMULATION_NAME}_before_allocation):
Silence uninitialized warning on ehdr_start_save with older
GCC.