Steve Ellcey [Fri, 5 Dec 2014 19:06:53 +0000 (11:06 -0800)]
2014-12-05 Steve Ellcey <sellcey@mips.com>
* ecoff.c (_bfd_ecoff_slurp_symbol_table): Add cast.
Jan Kratochvil [Fri, 5 Dec 2014 18:39:12 +0000 (19:39 +0100)]
Unify lookup_symbol_in_objfile_symtabs
That's right, block_lookup_symbol_primary()'s additional requirement over
block_lookup_symbol() is:
Function is useful if one iterates all global/static blocks of an
objfile.
Which is satisfied both in lookup_symbol_in_objfile_symtabs() and in
lookup_global_symbol_from_objfile() thanks to their's ALL_OBJFILE_COMPUNITS.
In fact after reverting that
ba715d7fe49c8a59660fbd571b935b29eb7cfbdb above
the lines of code were exactly the same.
So instead of accelerating both lookup_symbol_in_objfile_symtabs() and
lookup_global_symbol_from_objfile() I just accelerated
lookup_symbol_in_objfile_symtabs() and I am proposing to reuse
lookup_symbol_in_objfile_symtabs() in lookup_global_symbol_from_objfile()
instead. In fact such unification would already save some lines of code even
before the checked-in acceleration patch above.
gdb/ChangeLog
2014-12-05 Jan Kratochvil <jan.kratochvil@redhat.com>
* symtab.c (lookup_symbol_in_objfile_symtabs): New declaration.
(lookup_global_symbol_from_objfile): Call it.
Jan Kratochvil [Fri, 5 Dec 2014 18:11:53 +0000 (19:11 +0100)]
Remove const from many struct objfile *
I am just not sure if we should go the route of
struct objfile * -> const struct objfile *
or the other way of:
const struct objfile * -> struct objfile *
Normally const adding is better but here I do not see much useful to have any
struct objfile * const and then it just causes pointer compatibility problems.
On Wed, 03 Dec 2014 18:18:44 +0100, Doug Evans wrote:
struct objfile is one case where I've decided to just leave the const
out and not worry about it.
gdb/ChangeLog
2014-12-05 Jan Kratochvil <jan.kratochvil@redhat.com>
Remove const from struct objfile *.
* solib-darwin.c, solib-spu.c, solib-svr4.c, solib.c, solist.h,
symtab.c, symtab.h: In these files.
Andreas From [Fri, 5 Dec 2014 16:18:45 +0000 (11:18 -0500)]
Add myself as write after approval maintainer
gdb/ChangeLog:
* MAINTAINERS (Write After Approval): Add "Andreas From".
H.J. Lu [Fri, 5 Dec 2014 12:52:47 +0000 (04:52 -0800)]
Define bfd_elf32_get_synthetic_symtab for x32
* elf64-x86-64.c (bfd_elf32_get_synthetic_symtab): New.
Yao Qi [Fri, 5 Dec 2014 11:56:19 +0000 (19:56 +0800)]
Revert: Don't enable gdbtk in testsuite
This patch is to revert my previous commit, because we shouldn't remove
gdbtk bits from gdb/testsuite/configure.ac while keep gdbtk bits in
gdb/configure.ac.
gdb/testsuite:
2014-12-05 Yao Qi <yao@codesourcery.com>
Revert:
* configure.ac: Remove AC_ARG_ENABLE for gdbtk. Don't invoke
AC_CONFIG_SUBDIRS(gdb.gdbtk).
* configure: Re-generated.
Yao Qi [Sat, 29 Nov 2014 08:58:34 +0000 (16:58 +0800)]
Fix parallel testing issues in gdb.guile tests
Some gdb.guile tests such as scm-error.exp copies .scm file to
${subdir}/, how ${subdir} doesn't exist in parallel testing
(outputs/${subdir} exists).
$ make -j3 check TESTS='gdb.guile/scm-section-script.exp gdb.guile/scm-error.exp gdb.guile/scm-frame-args.exp'
ERROR: remote_download to host of ../../../../git/gdb/testsuite/gdb.guile/scm-section-script.scm to gdb.guile/t-scm-section-script.scm: cp: cannot create regular file 'gdb.guile/t-scm-section-script.scm': No such file or directory
ERROR: remote_download to host of ../../../../git/gdb/testsuite/gdb.guile/scm-frame-args.scm to gdb.guile/t-scm-frame-args.scm: cp: cannot create regular file
'gdb.guile/t-scm-frame-args.scm': No such file or directory
ERROR: remote_download to host of ../../../../git/gdb/testsuite/gdb.guile/scm-error-1.scm to gdb.guile/t-scm-error-1.scm: cp: cannot create regular file 'gdb.guile/t-scm-error-1.scm': No such file or directory
This patch is to remove the third argument of gdb_remote_download, so
that gdb_remote_download can return the correct location.
Further, these tests only copy .scm files to a different name. From what
I can tell from the comments, looks we do this to avoid clobbering file
in in-tree build. However, if source and dest of copy are the same, the
operation is no-op. So it makes few sense to copy .scm files to a
different names. I tried in-tree build/test with this patch, test
result isn't changed.
gdb/testsuite:
2014-12-05 Yao Qi <yao@codesourcery.com>
* gdb.guile/scm-error.exp: Remove the third argument to
gdb_remote_download.
* gdb.guile/scm-frame-args.exp: Likewise.
* gdb.guile/scm-section-script.exp: Likewise.
Doug Evans [Fri, 5 Dec 2014 08:53:56 +0000 (00:53 -0800)]
Revert: linespec.c (iterate_name_matcher): Fix arguments to symbol_name_cmp.
This patch causes regressions in ada's operator_bp.exp test.
That's because it uses wild_match which expects arguments in
the original order.
There is still a bug here. It's hard to see because either minsyms
save the day, or the needed symtab gets expanded before linespecs
need it because of the call to cp_canonicalize_string_no_typedefs
in linespec.c:find_linespec_symbols.
But if you disable both of those things, then the bug is visible.
bash$ ./gdb -D ./data-directory testsuite/gdb.cp/anon-ns
(gdb) b doit(void)
Function "doit(void)" not defined.
gdb/ChangeLog:
Revert:
PR symtab/17602
* linespec.c (iterate_name_matcher): Fix arguments to symbol_name_cmp.
Yao Qi [Sat, 29 Nov 2014 09:24:07 +0000 (17:24 +0800)]
Use standard_testfile in i386-bp_permanent.exp
This patch is to use standard_testfile in i386-bp_permanent.exp to replace
existing setting to testfile, srcfile and binfile. So it fixes a problem
in i386-bp_permanent.exp in parallel testing.
$ make -j3 check TESTS='gdb.guile/scm-section-script.exp gdb.arch/i386-bp_permanent.exp'
....
gdb compile failed, /usr/bin/ld: cannot open output file x86/gdb/testsuite/gdb.arch/i386-bp_permanent: No such file or directory
collect2: error: ld returned 1 exit status
gdb/testsuite:
2014-12-05 Yao Qi <yao@codesourcery.com>
* gdb.arch/i386-bp_permanent.exp: Use standard_testfile.
H.J. Lu [Thu, 4 Dec 2014 22:19:41 +0000 (14:19 -0800)]
Add _bfd_elf_ifunc_get_synthetic_symtab
In i386 and x86-64 binaries with ifunc, relocations against .got.plt
section may not be in the same order as entries in PLT section. This
patch adds _bfd_elf_ifunc_get_synthetic_symtab. It takes a function
pointer which returns an array of PLT entry symbol values. It calls
the function pointer to get the PLT entry symbol value array indexed
by relocation index, instead of calling plt_sym_val on each relocation
index.
PR binutils/17677
* elf-bfd.h (_bfd_elf_ifunc_get_synthetic_symtab): New prototype.
* elf-ifunc.c (_bfd_elf_ifunc_get_synthetic_symtab): New
function.
* elf32-i386.c (elf_i386_plt_sym_val): Removed.
(elf_backend_plt_sym_val): Likewise.
(elf_i386_get_plt_sym_val): New.
(elf_i386_get_synthetic_symtab): Likewise.
(bfd_elf32_get_synthetic_symtab): Likewise.
* elf64-x86-64.c (elf_x86_64_plt_sym_val): Removed.
(elf_x86_64_plt_sym_val_offset_plt_bnd): Likewise.
(elf_backend_plt_sym_val): Likewise.
(elf_x86_64_get_plt_sym_val): New.
(elf_x86_64_get_synthetic_symtab): Use
_bfd_elf_ifunc_get_synthetic_symtab.
(bfd_elf64_get_synthetic_symtab): Don't undefine for NaCl.
GDB Administrator [Fri, 5 Dec 2014 00:00:08 +0000 (00:00 +0000)]
Automatic date update in version.in
Doug Evans [Thu, 4 Dec 2014 20:01:22 +0000 (12:01 -0800)]
New python method gdb.Objfile.add_separate_debug_file.
gdb/ChangeLog:
* NEWS: Mention gdb.Objfile.add_separate_debug_file.
* python/py-objfile.c (objfpy_add_separate_debug_file): New function.
(objfile_getset): Add "add_separate_debug_file".
gdb/doc/ChangeLog:
* python.texi (Objfiles In Python): Document
Objfile.add_separate_debug_file.
gdb/testsuite/ChangeLog:
* gdb.python/py-objfile.exp: Add tests for
objfile.add_separate_debug_file.
Doug Evans [Thu, 4 Dec 2014 19:32:24 +0000 (11:32 -0800)]
New python attribute gdb.Objfile.build_id.
gdb/ChangeLog:
* NEWS: Mention gdb.Objfile.build_id.
* build-id.c (build_id_bfd_get): Make non-static.
* build-id.h (build_id_bfd_get): Add declaration.
* python/py-objfile.c: #include "build-id.h", "elf-bfd.h".
(OBJFPY_REQUIRE_VALID): New macro.
(objfpy_get_build_id): New function.
(objfile_getset): Add "build_id".
* utils.c (make_hex_string): New function.
* utils.h (make_hex_string): Add declaration.
gdb/doc/ChangeLog:
* python.texi (Objfiles In Python): Document Objfile.build_id.
gdb/testsuite/ChangeLog:
* lib/gdb.exp (get_build_id): New function.
(build_id_debug_filename_get): Rewrite to use it.
* gdb.python/py-objfile.exp: Add test for objfile.build_id.
Alan Modra [Thu, 4 Dec 2014 11:50:14 +0000 (22:20 +1030)]
ChangeLog typo fix
Alan Modra [Thu, 4 Dec 2014 10:40:40 +0000 (21:10 +1030)]
PowerPC gold, fix 32-bit branch address arithmetic
Mixing 64-bit and 32-bit types led to the wrong promotions. Keep
calculation in same type. Also fix a case where PLTREL25 reloc addend
should be ignored.
* Powerpc.cc (Target_powerpc::Branch_info::make_stub): Ignore
addend of PLTREL24 reloc when not generating a plt stub. Make
max_branch_offset an "Address".
(Stub_table::can_read_stub): Make max_branch_offset an "Address".
(Target_powerpc::Relocate::relocate): Likewise.
Jan Kratochvil [Thu, 4 Dec 2014 07:26:26 +0000 (08:26 +0100)]
Accelerate lookup_symbol_aux_objfile 85x
During debugging I get 10-30 seconds for a response to simple commands like:
(gdb) print vectorvar.size()
With this patch the performance gets to 1-2 seconds which is somehow
acceptable. The problem is that dwarf2_gdb_index_functions.lookup_symbol
(quick_symbol_functions::lookup_symbol) may return (and returns) NULL even for
symbols which are present in .gdb_index but which can be found in already
expanded symtab. But searching in the already expanded symtabs is just too
slow when there are 400000+ expanded symtabs. There would be needed some
single global hash table for each objfile so that one does not have to iterate
all symtabs. Which .gdb_index could perfectly serve for, just its
lookup_symbol() would need to return authoritative yes/no answers.
Even after such fix these two simple patches are useful for example for
non-.gdb_index files.
One can reproduce the slugging interactive GDB performance with:
#include <string>
using namespace std;
string var;
class C {
public:
void m() {}
};
int main() {
C c;
c.m();
return 0;
}
g++ -o slow slow.C -Wall -g $(pkg-config --libs gtkmm-3.0)
gdb ./slow -ex 'b C::m' -ex 'maintenance set per-command space' -ex 'maintenance set per-command symtab' -ex 'maintenance set per-command
time' -ex r
[...]
(gdb) p <tab><tab>
Display all 183904 possibilities? (y or n) n
(gdb) p/r var
$1 = {static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No
data fields>}, _M_p = 0x3a4db073d8 <std::string::_Rep::_S_empty_rep_storage+24> ""}}
Command execution time: 20.023000 (cpu), 20.118665 (wall)
^^^^^^^^^
Space used:
927997952 (+0 for this command)
Without DWZ there are X global blocks for X primary symtabs for X CUs of
objfile. With DWZ there are X+Y global blocks for X+Y primary symtabs for
X+Y CUs where Y are 'DW_TAG_partial_unit's.
For 'DW_TAG_partial_unit's (Ys) their blockvector is usually empty. But not
always, I have found there typedef symbols, there can IMO be optimized-out
static variables etc.
Neither of the patches should cause any visible behavior change.
gdb/ChangeLog
2014-12-04 Jan Kratochvil <jan.kratochvil@redhat.com>
* block.c (block_lookup_symbol_primary): New function.
* block.h (block_lookup_symbol_primary): New declaration.
* symtab.c (lookup_symbol_in_objfile_symtabs): Assert BLOCK_INDEX.
Call block_lookup_symbol_primary.
Alan Modra [Wed, 3 Dec 2014 11:30:18 +0000 (22:00 +1030)]
Sort relocs output by ld -r
bfd/
PR 17666
* elflink.c: Include bfd_stdint.h.
(cmp_ext32l_r_offset, cmp_ext32b_r_offset,
cmp_ext64l_r_offset, cmp_ext64b_r_offset): New functions.
(elf_link_adjust_relocs): Sort relocs. Free reloc hashes after
sorting invalidates.
ld/testsuite/
* ld-powerpc/vxworks-relax.rd: Update for reloc sorting.
* ld-powerpc/vxworks-relax-2.rd: Likewise.
* ld-sh/sh64/reldl32.rd: Likewise.
* ld-sh/sh64/reldl64.rd: Likewise.
Maciej W. Rozycki [Thu, 4 Dec 2014 00:06:10 +0000 (00:06 +0000)]
Correct invalid assumptions made by (mostly) DWARF-2 tests
Address issues triggered by the MIPS ISA bit handling change, usually in
tests that make artificial DWARF-2 records:
* gdb.cp/expand-psymtabs-cxx.exp -- this test is debugging an object file
and assuming addresses will be 0; with the ISA bit set code addresses
are 1 instead:
(gdb) PASS: gdb.cp/expand-psymtabs-cxx.exp: set language c++
p 'method(long)'
$1 = {void (long)} 0x1 <method(long)>
(gdb) FAIL: gdb.cp/expand-psymtabs-cxx.exp: before expand
p method
$2 = {void (long)} 0x1 <method(long)>
(gdb) FAIL: gdb.cp/expand-psymtabs-cxx.exp: force expand
p 'method(long)'
$3 = {void (long)} 0x1 <method(long)>
(gdb) FAIL: gdb.cp/expand-psymtabs-cxx.exp: after expand
Fix by matching any hex number, there's no value AFAICT for the test
in matching 0 exactly, and I suppose the method's offset within
section can be non-zero for some other reasons on other targets too.
* gdb.cp/nsalias.exp -- this assumes instructions can be aligned
arbitrarily and places code labels at odd addreses, setting the ISA
bit and wreaking havoc:
(gdb) PASS: gdb.cp/nsalias.exp: print outer::inner::innermost::x
list outer::inner::innermost::foo
Function "outer::inner::innermost::foo" not defined.
(gdb) FAIL: gdb.cp/nsalias.exp: list outer::inner::innermost::foo
break *outer::inner::innermost::foo
No symbol "foo" in namespace "outer::inner::innermost".
(gdb) FAIL: gdb.cp/nsalias.exp: setting breakpoint at
*outer::inner::innermost::foo
delete $bpnum
No breakpoint number 6.
(gdb) FAIL: gdb.cp/nsalias.exp: (outer::inner::innermost): delete $bpnum
-- etc., etc... Fix by aligning labels to 4; required by many
processors.
* gdb.dwarf2/dw2-canonicalize-type.exp, gdb.dwarf2/dw2-empty-pc-range.exp,
gdb.dwarf2/pr11465.exp -- these assume an instruction and consequently
a function can take as little as 1 byte, which makes it impossible to
look up a code symbol by an address with the ISA bit set as the
address is already beyond the end of the function:
(gdb) ptype f
No symbol "f" in current context.
(gdb) FAIL: gdb.dwarf2/dw2-canonicalize-type.exp: ptype f
(gdb) PASS: gdb.dwarf2/dw2-empty-pc-range.exp: empty range before CU load
ptype realrange
No symbol "realrange" in current context.
(gdb) FAIL: gdb.dwarf2/dw2-empty-pc-range.exp: valid range after CU load
(gdb) p N::c.C
Cannot take address of method C.
(gdb) FAIL: gdb.dwarf2/pr11465.exp: p N::c.C
-- fix by increasing the size of the function to 4 (perhaps code in
gdb/mips-tdep.c could look up code symbols up to twice, with and
failing that without the ISA bit set, but it seems wrong to me to
implement specific handling for invalid code just to satisfy test
cases that assume too much about the target).
* gdb.dwarf2/dw2-case-insensitive.exp -- an artificial code label is
created, but does not work because data (a `.align' pseudo-op in this
case) follows and as a result the label has no MIPS16 or microMIPS
annotation in the symbol table:
(gdb) PASS: gdb.dwarf2/dw2-case-insensitive.exp: set case-sensitive off
info functions fUnC_lang
All functions matching regular expression "fUnC_lang":
File file1.txt:
foo FUNC_lang(void);
Non-debugging symbols:
0x004006e0 FUNC_lang_start
(gdb) FAIL: gdb.dwarf2/dw2-case-insensitive.exp: regexp case-sensitive off
-- fix by adding a `.insn' pseudo-op on MIPS targets; the pseudo-op
marks data as instructions.
* gdb.dwarf2/dw2-stack-boundary.exp -- the test case enables complaints
and assumes none will be issued beyond ones explicitly arranged by the
test case, however overlapping sections are noticed while minimal
symbols are looked up by `mips_adjust_dwarf2_addr' in DWARF-2 record
processing:
(gdb) set complaints 100
(gdb) PASS: gdb.dwarf2/dw2-stack-boundary.exp: set complaints 100
file ./dw2-stack-boundary
Reading symbols from ./dw2-stack-boundary...location description stack
underflow...location description stack overflow...unexpected overlap
between:
(A) section `.reginfo' from `.../gdb.dwarf2/dw2-stack-boundary' [0x0, 0x18)
(B) section `*COM*' from `.../gdb.dwarf2/dw2-stack-boundary' [0x0, 0x0).
Will ignore section B...unexpected overlap between:
(A) section `.reginfo' from `.../gdb.dwarf2/dw2-stack-boundary' [0x0, 0x18)
(B) section `*UND*' from `.../gdb.dwarf2/dw2-stack-boundary' [0x0, 0x0).
Will ignore section B...unexpected overlap between:
(A) section `.reginfo' from `.../gdb.dwarf2/dw2-stack-boundary' [0x0, 0x18)
(B) section `*ABS*' from `.../gdb.dwarf2/dw2-stack-boundary' [0x0, 0x0).
Will ignore section B...done.
(gdb) FAIL: gdb.dwarf2/dw2-stack-boundary.exp: check partial symtab errors
-- fix by ignoring any extra noise as long as what we look for is
found.
* gdb.cp/expand-psymtabs-cxx.exp: Accept any address of
`method(long)', not just 0x0.
* gdb.cp/nsalias.exp: Align code labels to 4.
* gdb.dwarf2/dw2-canonicalize-type.S (main): Expand to 4-bytes.
* gdb.dwarf2/dw2-empty-pc-range.S (main): Likewise.
* gdb.dwarf2/pr11465.S (_ZN1N1cE): Likewise.
* gdb.dwarf2/dw2-case-insensitive.c (START_INSNS): New macro.
(cu_text_start, FUNC_lang_start): Use `START_INSNS'.
* gdb.dwarf2/dw2-stack-boundary.exp: Accept noise in complaints.
GDB Administrator [Thu, 4 Dec 2014 00:00:10 +0000 (00:00 +0000)]
Automatic date update in version.in
Alan Modra [Wed, 3 Dec 2014 05:47:23 +0000 (16:17 +1030)]
powerpc gold, work around pr17670
pr17670 is about an assert triggering on a branch to an undefined
weak symbol, the symbol being undefined due to dropping its comdat
group section. (Well sort of. The symbol is actually defined in
an .opd section which isn't part of the group, but the code section
the opd entry points at is dropped.) So don't assert.
Also, don't make long branch stubs to such symbols, and arrange to
have target-reloc.h code warn when applying relocs that use the sym.
PR 17670
* symtab.cc (Symbol::set_undefined): Remove assertion.
* powerpc.cc (Target_powerpc::symval_for_branch): Don't assert
on symbols defined in discarded sections, instead return false.
Rearrange params, update all callers.
(Target_powerpc::Branch_info::make_stub): Don't make stubs for
branches to syms in discarded sections.
(Global_symbol_visitor_opd::operator()): Set discarded opd syms
undefined and flag as discarded.
(Target_powerpc::Relocate::relocate): Localize variable.
Maciej W. Rozycki [Wed, 3 Dec 2014 19:19:41 +0000 (19:19 +0000)]
MIPS: Add support for microMIPS Linux signal trampolines
The necessity for this change has been revealed in the course of
investigation related to proposed changes in the treatment of the ISA
bit encoded in function symbols on the MIPS target. This change adds
support for Linux signal trampolines encoded with the microMIPS
instruction set. Such trampolines are used by the Linux kernel if
compiled as a microMIPS binary (even if the binary run/debugged itself
contains no microMIPS code at all).
To see if we need to check whether the execution mode selected matches
the given trampoline I have checked what the bit patterns of all the
trampoline sequences decode to in the opposite instruction set. This
produced useless or at least unusual code in most cases, for example:
microMIPS/EB, o32 sigreturn, decoded as MIPS code:
30401017 andi zero,v0,0x1017
00008b7c dsll32 s1,zero,0xd
MIPS/EL, o32 sigreturn, decoded as microMIPS code:
1017 2402 addi zero,s7,9218
000c 0000 sll zero,t0,0x0
However in some corner cases reasonable code can mimic a trampoline, for
example:
MIPS/EB, n32 rt_sigreturn, decoded as microMIPS code:
2402 sll s0,s0,1
1843 0000 sb v0,0(v1)
000c 0f3c jr t0
-- here the first instruction is a 16-bit one, making things nastier
even as there are some other microMIPS instructions whose first 16-bit
halfword is 0x000c and therefore matches this whole trampoline pattern.
To overcome this problem I have decided the signal trampoline unwinder
has to ask the platform backend whether it can apply a given trampoline
pattern to the code location being concerned or not. Anticipating the
acceptance of the ISA bit proposal I decided the handler not to merely
be a predicate, but also to be able to provide an adjusted PC if
required. I decided that returning zero will mean that the trampoline
pattern is not applicable and any other value is the adjusted PC to use;
a handler may return the value requested if the trampoline pattern and
the PC requested as-is are both accepted.
This changes the semantics of the trampoline unwinder a bit in that the
zero PC now has a special value. I think this should be safe as a NULL
pointer is generally supposed to be invalid.
* tramp-frame.h (tramp_frame): Add `validate' member.
* tramp-frame.c (tramp_frame_start): Validate trampoline before
scanning.
* mips-linux-tdep.c (MICROMIPS_INST_LI_V0): New macro.
(MICROMIPS_INST_POOL32A, MICROMIPS_INST_SYSCALL): Likewise.
(mips_linux_o32_sigframe): Initialize `validate' member.
(mips_linux_o32_rt_sigframe): Likewise.
(mips_linux_n32_rt_sigframe): Likewise.
(mips_linux_n64_rt_sigframe): Likewise.
(micromips_linux_o32_sigframe): New variable.
(micromips_linux_o32_rt_sigframe): Likewise.
(micromips_linux_n32_rt_sigframe): Likewise.
(micromips_linux_n64_rt_sigframe): Likewise.
(mips_linux_o32_sigframe_init): Handle microMIPS trampolines.
(mips_linux_n32n64_sigframe_init): Likewise.
(mips_linux_sigframe_validate): New function.
(micromips_linux_sigframe_validate): Likewise.
(mips_linux_init_abi): Install microMIPS trampoline unwinders.
Nick Clifton [Wed, 3 Dec 2014 19:50:48 +0000 (19:50 +0000)]
Fix memory access problems exposed by fuzzed binaries.
PR binutils/17512
* objdump.c (free_debug_section): Reset the compress_status as
well.
* compress.c (bfd_get_full_section_contents): Fail if there are no
section contents available when the compress_status is
COMPRESS_SECTION_DONE.
* libbfd.c (bfd_malloc): Refuse to allocate a negative size.
(bfd_malloc2): Use bfd_malloc.
(bfd_realloc): Refuse to reallocate a negative size.
(bfd_realloc2): Use bfd_realloc.
(bfd_realloc_or_free): Use bfd_realloc.
(bfd_zmalloc): Use bfd_malloc.
(bfd_zmalloc): Use bfd_malloc2.
* opncls.c (bfd_alloc): Refuse to allocate a negative size.
H.J. Lu [Wed, 3 Dec 2014 18:59:46 +0000 (10:59 -0800)]
Compile pie_copyrelocs_test.cc with -fno-exceptions -fno-asynchronous-unwind-tables
PR gold/17675
* testsuite/Makefile.am (pie_copyrelocs_test_CXXFLAGS): New.
* testsuite/Makefile.in: Regenerated.
H.J. Lu [Wed, 3 Dec 2014 16:40:19 +0000 (08:40 -0800)]
Replace copyreloc-main.c with copyreloc-main.S
* ld-x86-64/copyreloc-main.c: Removed.
* ld-x86-64/copyreloc-main.S: New.
* ld-x86-64/x86-64.exp: Replace copyreloc-main.c with
copyreloc-main.S.
Nick Clifton [Wed, 3 Dec 2014 16:33:33 +0000 (16:33 +0000)]
Replace calls to abort (in readelf) with informative error messages.
PR binutils/17531
* readelf.c (get_machine_flags): Replace call to abort with a
warning message and a return value.
(get_elf_section_flags): Likewise.
(get_symbol_visibility): Likewise.
(get_ia64_symbol_other): Likewise.
(get_ia64_symbol_other): Likewise.
(is_32bit_abs_reloc): Likewise.
(apply_relocations): Likewise.
(display_arm_attribute): Likewise.
H.J. Lu [Wed, 3 Dec 2014 16:10:04 +0000 (08:10 -0800)]
Reformat elf_x86_64_create_dynamic_sections
* elf64-x86-64.c (elf_x86_64_create_dynamic_sections): Reformat.
Alan Modra [Wed, 3 Dec 2014 11:26:19 +0000 (21:56 +1030)]
powerpc gold, fix pr17566
Code stolen from arm.cc.
PR 17566
* powerpc.cc (Target_powerpc::Scan::local): Use add_local_section
when adding dynamic relocations against section symbols.
Ulrich Weigand [Wed, 3 Dec 2014 14:38:46 +0000 (15:38 +0100)]
Use core regset iterators on Sparc Solaris
Remove native-only core file handling on Sparc Solaris. Instead,
enable the sparc target generic core regset logic on Solaris by
providing appropriate register offset maps.
Thanks to Joel Brobecker for testing!
gdb/
* config/sparc/sol2.mh (NATDEPFILES): Remove core-regset.o.
* sparc-sol2-tdep.c: Include "regset.h".
(sparc32_sol2_supply_core_gregset): New function.
(sparc32_sol2_collect_core_gregset): Likewise.
(sparc32_sol2_supply_core_fpregset): Likewise.
(sparc32_sol2_collect_core_fpregset): Likewise.
(sparc32_sol2_gregset, sparc32_sol2_fpregset): New variables.
(sparc32_sol2_init_abi): Set tdep->gregset/sizeof_gregset and
tdep->fpregset/sizeof_fpregset.
* sparc64-sol2-tdep.c: Include "regset.h".
(sparc64_sol2_supply_core_gregset): New function.
(sparc64_sol2_collect_core_gregset): Likewise.
(sparc64_sol2_supply_core_fpregset): Likewise.
(sparc64_sol2_collect_core_fpregset): Likewise.
(sparc64_sol2_gregset, sparc64_sol2_fpregset): New variables.
(sparc64_sol2_init_abi): Set tdep->gregset/sizeof_gregset and
tdep->fpregset/sizeof_fpregset.
Simon Marchi [Wed, 3 Dec 2014 13:56:10 +0000 (08:56 -0500)]
Fix make_cleanup_dtor signature to match declaration
The definition does not use the typedef for the dtor function pointer
type that the declaration uses. It's a cosmetic-only change.
ChangeLog:
* common/cleanups.c (make_cleanup_dtor): Use typedef for dtor
type.
Joel Brobecker [Wed, 3 Dec 2014 07:33:13 +0000 (02:33 -0500)]
callback.h:struct host_callback_struct compilation error on Windows hosts.
On Windows, a recent gnulib update imported the lstat module, and
this caused a remote-sim.c build failure in struct host_callback_struct:
In file included from /[...]/gdb/remote-sim.c:34:0:
/[...]/gdb/../include/gdb/callback.h:93:9: error: duplicate member '_stati64'
int (*lstat) (host_callback *, const char *, struct stat *);
^
What happens it that gnulib's stat.h makes the following defines:
/* Large File Support on native Windows. */
#if 1
# define stat _stati64
#endif
and then:
#if 1
# if ! 0
/* mingw does not support symlinks, therefore it does not have lstat. But
without links, stat does just fine. */
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# define lstat stat
# endif
So, the following fields in struct host_callback_struct...
int (*stat) (host_callback *, const char *, struct stat *);
int (*fstat) (host_callback *, int, struct stat *);
int (*lstat) (host_callback *, const char *, struct stat *);
... get translated to...
int (*_stati64) (host_callback *, const char *, struct _stati64 *);
int (*_fstati64) (host_callback *, int, struct _stati64 *);
int (*_stati64) (host_callback *, const char *, struct _stati64 *);
... which causes two fields to have the same name.
This patch fixes the issue by renaming the stat-related fields
by adding a "to_" prefix, similar to what is done in GDB's
target_ops vector.
include/gdb/ChangeLog:
* callback.h (struct host_callback_struct) <to_stat>: Renamed
from "stat".
<to_fstat>: Renamed from "fstat".
<to_lstat>: Renamed from "lstat".
sim/common/ChangeLog:
* sim-io.c (sim_io_stat, sim_io_fstat): Adjust calls to "stat"
and "fstat" callbacks by calls to "to_stat" and "to_fstat" (resp)
callbacks following renaming in callback.h.
* syscall.c (cb_syscall): Likewise. Adjust calls to "lstat"
callback by call to "to_lstat" callback
sim/cris/ChangeLog:
* traps.c (cris_break_13_handler): Adjust call to "fstat" callback
by call to "to_fstat" following renaming in callback.h.
sim/h8300/ChangeLog:
* compile.c (sim_resume): Adjust calls to "stat" and "fstat"
callbacks by calls to "to_stat" and "to_fstat" (resp) callbacks
following renaming in callback.h.
H.J. Lu [Wed, 3 Dec 2014 00:57:45 +0000 (16:57 -0800)]
Check info->executable for symbols which need copy relocs
* elf64-x86-64.c (elf_x86_64_relocate_section): Check
info->executable for symbols which need copy relocs.
Doug Evans [Wed, 3 Dec 2014 00:54:16 +0000 (16:54 -0800)]
Remove cplus_specific from general_symbol_info.
This patch reverts the addition of cplus_specific added here:
2010-07-16 Sami Wagiaalla <swagiaal@redhat.com>
* symtab.h (symbol_set_demangled_name): Now takes an optional objfile*
argument.
(cplus_specific): New struct.
* symtab.c (symbol_set_demangled_name): Updated.
Use cplus_specific for cplus symbols.
(symbol_get_demangled_name): Retrive the name from the cplus_specific
struct for cplus symbols.
(symbol_init_language_specific): Set cplus_specific for cplus symbols.
(symbol_set_names): Pass objfile to symbol_set_demangled_name.
* symtab.c (symbol_init_cplus_specific): New function.
It was added in anticipation of improved template support:
https://sourceware.org/ml/gdb-patches/2010-05/msg00594.html
https://sourceware.org/ml/gdb-patches/2010-07/msg00284.html
However, minsyms pay the price for this space too.
For my standard benchmark this patch gets back 44MB of memory
when gdb starts. [There's still ~440MB of memory used
by the demangled ELF symbols of this benchmark, but that's another topic.]
When the improved templated support is added,
I wonder if this can be moved to struct symbol.
Hmmm, we already have a special version of
struct symbol for templates (struct template_symbol).
gdb/ChangeLog:
* symtab.c (symbol_init_cplus_specific): Delete.
(symbol_set_demangled_name): Remove special c++ support.
(symbol_get_demangled_name, symbol_set_language): Ditto.
* symtab.h (struct cplus_specific): Delete.
(struct general_symbol_info) <language_specific>: Remove
cplus_specific.
H.J. Lu [Wed, 3 Dec 2014 00:50:14 +0000 (16:50 -0800)]
Discard space for relocs against symbols with copy relocs
This patch reverts the change in elf_x86_64_check_relocs and the partial
change in elf_x86_64_adjust_dynamic_symbol. Instead, we discard space
in PIE for relocs against symbols which turn out to need copy relocs.
* elf64-x86-64.c (elf_x86_64_check_relocs): Revert the last
change.
(elf_x86_64_adjust_dynamic_symbol): Don't check !info->shared
with ELIMINATE_COPY_RELOCS.
(elf_x86_64_allocate_dynrelocs): For PIE, discard space for
relocs against symbols which turn out to need copy relocs.
Doug Evans [Wed, 3 Dec 2014 00:40:38 +0000 (16:40 -0800)]
PR symtab/17602
gdb/ChangeLog:
PR symtab/17602
* linespec.c (iterate_name_matcher): Fix arguments to symbol_name_cmp.
gdb/testsuite/ChangeLog:
PR symtab/17602
* gdb.cp/anon-ns.cc: Move guts of this file to ...
* gdb.cp/anon-ns-2.cc: ... here. New file.
* gdb.cp/anon-ns.exp: Update.
Doug Evans [Wed, 3 Dec 2014 00:24:37 +0000 (16:24 -0800)]
PR symtab/17591
gdb/ChangeLog:
PR symtab/17591
* dwarf2read.c (find_slot_in_mapped_hash): Use cp_remove_params
to strip parameters.
Doug Evans [Wed, 3 Dec 2014 00:22:18 +0000 (16:22 -0800)]
dwarf2read.c (peek_die_abbrev): Improve error message text.
gdb/ChangeLog:
* dwarf2read.c (peek_die_abbrev): Improve error message text.
Doug Evans [Wed, 3 Dec 2014 00:15:53 +0000 (16:15 -0800)]
Remove remnant of Chill support.
gdb/ChangeLog:
* valops.c (do_search_struct_field): Remove remnant of Chill support.
Ref: commit
4c2260aa5c261f7bfb26dcf3aa7c67876720b17e
GDB Administrator [Wed, 3 Dec 2014 00:00:10 +0000 (00:00 +0000)]
Automatic date update in version.in
H.J. Lu [Tue, 2 Dec 2014 23:14:28 +0000 (15:14 -0800)]
X86-64: Allow copy relocs for building PIE
This patch allows copy relocs for non-GOT pc-relative relocation in PIE.
bfd/
* elf64-x86-64.c (elf_x86_64_create_dynamic_sections): Always
allow copy relocs for building executables.
(elf_x86_64_check_relocs): Allow copy relocs for non-GOT
pc-relative relocation in shared object.
(elf_x86_64_adjust_dynamic_symbol): Allocate copy relocs for
PIE.
(elf_x86_64_relocate_section): Don't copy a pc-relative
relocation into the output file if the symbol needs copy reloc.
ld/testsuite/
* ld-x86-64/copyreloc-lib.c: New file.
* ld-x86-64/copyreloc-main.c: Likewise.
* ld-x86-64/copyreloc-main.out: Likewise.
* ld-x86-64/copyreloc-main1.rd: Likewise.
* ld-x86-64/copyreloc-main2.rd: Likewise.
* ld-x86-64/x86-64.exp: Run copyreloc tests.
Simon Marchi [Tue, 2 Dec 2014 22:19:11 +0000 (17:19 -0500)]
Fix comment typo
ChangeLog:
* common/cleanups.c (make_cleanup_dtor): Fix comment typo.
Nick Bull [Tue, 2 Dec 2014 19:15:29 +0000 (11:15 -0800)]
New python events: inferior call, register/memory changed.
gdb/ChangeLog:
* NEWS: Mention new Python events.
* Makefile.in (SUBDIR_PYTHON_OBS): Add py-infevents.o.
(SUBDIR_PYTHON_SRCS): Add py-infevents.c.
(py-infevents.o): New rule.
* doc/observer.texi (inferior_call_pre, inferior_call_post)
(memory_changed, register_changed): New observers.
* infcall.c (call_function_by_hand): Notify observer before and
after inferior call.
* python/py-event.h (inferior_call_kind): New enum.
(emit_inferior_call_event): New prototype.
(emit_register_changed_event): New prototype.
(emit_memory_changed_event): New prototype.
* python/py-events.h (events_object): New registries
inferior_call, memory_changed and register_changed.
* python/py-evts.c (gdbpy_initialize_py_events): Add the
inferior_call, memory_changed and register_changed registries.
* python/py-infevents.c: New.
* python/py-inferior.c (python_on_inferior_call_pre)
(python_on_inferior_call_post, python_on_register_change)
(python_on_memory_change): New functions.
(gdbpy_initialize_inferior): Attach python handler to new
observers.
* python/py-infthread.c(gdbpy_create_ptid_object): New.
(thpy_get_ptid) Use gdbpy_create_ptid_object.
* python/python-internal.h:
(gdbpy_create_ptid_object)
(gdbpy_initialize_inferior_call_pre_event)
(gdbpy_initialize_inferior_call_post_event)
(gdbpy_initialize_register_changed_event)
(gdbpy_initialize_memory_changed_event): New prototypes.
* python/python.c (_initialize_python): Initialize new events.
* valops.c (value_assign): Notify register_changed observer.
gdb/doc/ChangeLog:
* python.texi (Events In Python): Document new events
InferiorCallPreEvent, InferiorCallPostEvent, MemoryChangedEvent
and RegisterChangedEvent.
gdb/testsuite/ChangeLog:
* gdb.python/py-events.py (inferior_call_handler): New.
(register_changed_handler, memory_changed_handler): New.
(test_events.invoke): Register new handlers.
* gdb.python/py-events.exp: Add tests for inferior call,
memory_changed and register_changed events.
Doug Evans [Tue, 2 Dec 2014 19:12:49 +0000 (11:12 -0800)]
revert previous patch so that I can re-commit with correct author
Doug Evans [Tue, 2 Dec 2014 18:59:08 +0000 (10:59 -0800)]
New python events: infcall, register/memory changed.
gdb/ChangeLog:
* NEWS: Mention new Python events.
* Makefile.in (SUBDIR_PYTHON_OBS): Add py-infevents.o.
(SUBDIR_PYTHON_SRCS): Add py-infevents.c.
(py-infevents.o): New rule.
* doc/observer.texi (inferior_call_pre, inferior_call_post)
(memory_changed, register_changed): New observers.
* infcall.c (call_function_by_hand): Notify observer before and
after inferior call.
* python/py-event.h (inferior_call_kind): New enum.
(emit_inferior_call_event): New prototype.
(emit_register_changed_event): New prototype.
(emit_memory_changed_event): New prototype.
* python/py-events.h (events_object): New registries
inferior_call, memory_changed and register_changed.
* python/py-evts.c (gdbpy_initialize_py_events): Add the
inferior_call, memory_changed and register_changed registries.
* python/py-infevents.c: New.
* python/py-inferior.c (python_on_inferior_call_pre)
(python_on_inferior_call_post, python_on_register_change)
(python_on_memory_change): New functions.
(gdbpy_initialize_inferior): Attach python handler to new
observers.
* python/py-infthread.c(gdbpy_create_ptid_object): New.
(thpy_get_ptid) Use gdbpy_create_ptid_object.
* python/python-internal.h:
(gdbpy_create_ptid_object)
(gdbpy_initialize_inferior_call_pre_event)
(gdbpy_initialize_inferior_call_post_event)
(gdbpy_initialize_register_changed_event)
(gdbpy_initialize_memory_changed_event): New prototypes.
* python/python.c (_initialize_python): Initialize new events.
* valops.c (value_assign): Notify register_changed observer.
gdb/doc/ChangeLog:
* python.texi (Events In Python): Document new events
InferiorCallPreEvent, InferiorCallPostEvent, MemoryChangedEvent
and RegisterChangedEvent.
gdb/testsuite/ChangeLog:
* gdb.python/py-events.py (inferior_call_handler): New.
(register_changed_handler, memory_changed_handler): New.
(test_events.invoke): Register new handlers.
* gdb.python/py-events.exp: Add tests for inferior call,
memory_changed and register_changed events.
Doug Evans [Tue, 2 Dec 2014 18:01:07 +0000 (10:01 -0800)]
python/py-infthread.c: Whitespace fixes.
gdb/ChangeLog:
* python/py-infthread.c: Whitespace fixes.
Denis Chertykov [Tue, 2 Dec 2014 16:45:59 +0000 (19:45 +0300)]
* MAINTAINERS: Fix my email address.
Andreas Arnez [Tue, 2 Dec 2014 15:35:47 +0000 (16:35 +0100)]
execl-update-breakpoints.exp: Move whole segment instead of .text section
The test case builds two copies of the program, one with the compile
option "ldflags=-Wl,-Ttext=0x1000000" and the other with the address
changed to 0x2000000. However, when linking with ld.bfd, the
resulting executables crash early in ld.so on S390 and i386.
Analysis of the crash: The default linker script establishes a certain
order of loadable sections, and the option "-Ttext" effectively splits
these into an "unaffected" lot (everything before .text) and an
"affected" lot. The affected lot is placed at the given address,
whereas the unaffected lot stays at its default address. The
unaffected lot starts at an aligned address plus Elf header sizes,
which is good if it is the first LOAD segment (like on AMD64). But if
the affected lot comes first instead (like on S390 and i386), the PHDR
doesn't fit there and is placed *outside* any LOAD segments. Then the
PHDR is not mapped when the loader gets control, and the loader runs
into a segmentation fault while trying to access it.
Since we are lucky about the order of segments on AMD64, the test
succeeds there, but the resulting binaries are unusually large -- 2.1M
each, with lots of padding within.
When replacing '-Ttext' by '-Ttext-segment', the linker moves all
segments consistently, the binaries have normal sizes, and the test
case succeeds on all mentioned platforms.
Since old versions of the gold linker don't support '-Ttext-segment',
the patch also adds logic for falling back to '-Ttext'.
gdb/testsuite/ChangeLog:
* gdb.base/execl-update-breakpoints.exp: Specify the link address
with '-Ttext-segment' instead of '-Ttext'. Fall back to '-Ttext'
if the linker doesn't understand this.
Andrew Bennett [Thu, 20 Nov 2014 15:40:16 +0000 (15:40 +0000)]
[MIPS] When calculating a relocation using an undefined weak symbol don't check for overflow.
In MIPS the relocation calculation only ignores the overflow checks for undefined
weak symbols on relocations associated with j/jal. This patch extends this to
the relocations used by the: b* instructions; pc/gp relative symbol offsets; and the
lwpc/ldpc MIPS r6 instructions.
bfd/
* elfxx-mips.c (mips_elf_calculate_relocation): Only check for overflow
on non-weak undefined symbols.
ld/testsuite/
* ld-mips-elf/mips-elf.exp: Add in undefined weak overflow tests for
o32, n32 and n64.
* ld-mips-elf/undefweak-overflow.s: New test.
* ld-mips-elf/undefweak-overflow.d: New test.
* ld-mips-elf/undefweak-overflow-n32.d: New test.
* ld-mips-elf/undefweak-overflow-n64.d: New test.
Alan Modra [Tue, 2 Dec 2014 04:39:16 +0000 (15:09 +1030)]
ppc64_elf_edit_opd revamp
This patch sorts .opd relocs (see pr17666) and allows .opd sections
with a mix of 16 and 24 byte entries to be edited.
* elf64-ppc.c (OPD_NDX): Define. Use throughout for sizing/indexing
_opd_sec_data array, halving required memory.
(sort_r_offset): New function.
(ppc64_elf_edit_opd): Sort incoming relocs. Accept .opd
sections with a mix of 16 and 24 byte OPD entries. Don't
attempt to honour --non-overlapping-opd for .opd sections with
unexpected relocs. Simplify opd entry size calculations by
first finding the reloc for the next entry. Make edit loop
handle one opd entry per iteration, with an inner loop
handling relocs per entry.
Andreas Arnez [Tue, 2 Dec 2014 09:47:30 +0000 (10:47 +0100)]
S390: Fix 'expedite' for s390-te-linux64
Fix a typo in the expedited registers for s390-te-linux64.
gdb/ChangeLog:
* features/Makefile (s390-te-linux64-expedite): Replace
non-existant r14 and r15 by r14l and r15l, respectively.
* regformats/s390-te-linux64.dat: Regenerate.
GDB Administrator [Tue, 2 Dec 2014 00:00:10 +0000 (00:00 +0000)]
Automatic date update in version.in
Dmitriy Ivanov [Mon, 1 Dec 2014 21:37:21 +0000 (13:37 -0800)]
Add support for -z global.
gold/
* layout.cc (Layout::finish_dynamic_section): When '-z global'
is specified set DF_1_GLOBAL in DT_FLAGS_1 flags.
* options.h (General_options): New -z option (global).
Cary Coutant [Mon, 1 Dec 2014 21:21:49 +0000 (13:21 -0800)]
Fix extraneous warning about executable stack.
PR gold/17578 notes that gold will print a warning about an executable stack
when the -z execstack option is given, even when there is no --warn_execstack
option. The warning is completely useless and unexpected, since the user
explicitly requested an executable stack, and did not even ask for warnings.
This patch fixes that, and adds an extra warning when --warn_execstack
and -z noexecstack are both given and an input file requires an executable
stack.
gold/
PR gold/17578
* layout.cc (Layout::layout_gnu_stack): Don't warn when -z execstack
is given.
(Layout::create_executable_stack_info): Warn when -z noexecstack is
given but some inputs require executable stack.
H.J. Lu [Mon, 1 Dec 2014 17:11:57 +0000 (09:11 -0800)]
Properly check for an out of range row index
* dwarf.c (process_cu_tu_index): Properly check for an out of
range row index.
Nick Clifton [Mon, 1 Dec 2014 16:43:46 +0000 (16:43 +0000)]
More fixes for memory access violations exposed by fuzzed binaries.
PR binutils/17512
* dwarf.h (struct dwarf_section): Add user_data field.
* dwarf.c (frame_need_space): Check for an over large register
number.
(display_debug_frames): Check the return value from
frame_need_space. Check for a CFA expression that is so long the
start address wraps around.
(debug_displays): Initialise the user_data field.
* objdump.c (load_specific_debug_section): Save the BFD section
pointer in the user_data field of the dwarf_section structure.
(free_debug_section): Update BFD section data when freeing section
contents.
* readelf.c (load_specific_debug_section): Initialise the
user_data field.
* archive.c (do_slurp_coff_armap): Add range checks to prevent
running off the end of the string table.
* compress.c (bfd_get_full_section_contents): Return a NULL
pointer for zero sized sections. Do not attempt to copy a buffer
onto itself.
* elf-attrs.c (_bfd_elf_parse_attributes): Check for an empty
header. Add range checks to avoid running off the end of the
section.
* elf.c (bfd_elf_get_str_section): Seek before allocating so that
if the seek fails, no memory is allocated.
(bfd_elf_string_from_elf_section): Do not allocate a string from a
non string section. It only leads to trouble later on.
(_bfd_elf_print_private_bfd_data): Check for there being too
little external dynamic data.
(bfd_section_from_shdr): Replace assertion with a failure mode.
(bfd_section_from_shdr): When walking a loaded group section use
the internal structure size, not the external size. Check for the
group section being empty.
* elf32-i386.c (elf_i386_rtype_to_howto): Replace assertion with a
failure mode.
* elfcode.h (elf_slurp_reloc_table): Likewise.
* reloc.c (bfd_perform_relocation): Avoid seg-fault if the howto
parameter is NULL.
Simon Marchi [Mon, 1 Dec 2014 14:12:59 +0000 (09:12 -0500)]
Remove duplicate comment
gdb/ChangeLog:
* objfiles.c (allocate_objfile): Remove duplicate comment.
H.J. Lu [Mon, 1 Dec 2014 14:06:21 +0000 (06:06 -0800)]
Add tests for PR ld/16452 and PR ld/16457
PR ld/16452
PR ld/16457
* ld-elf/pr16452.map: New file.
* ld-elf/pr16452.od: Likewise.
* ld-elf/pr16452a.c: Likewise.
* ld-elf/pr16452b.c: Likewise.
* ld-elf/pr16457.od: Likewise.
* ld-elf/shared.exp (build_tests): Add tests for PR ld/16452 and
PR ld/16457.
Simon Marchi [Mon, 1 Dec 2014 13:08:06 +0000 (08:08 -0500)]
Fix Python help() test for Python 3
The message displayed when using help() changed a bit with time, so this
adjusts the test accordingly.
gdb/testsuite/ChangeLog:
* gdb.python/python.exp: Change expected reply to help().
Ulrich Weigand [Mon, 1 Dec 2014 12:42:41 +0000 (13:42 +0100)]
Use core regset iterators on GNU Hurd
Remove native-only core file handling on GNU Hurd. Instead, enable the
x86 target generic core regset logic on the Hurd by providing an
appropriate register offset map.
Thanks to Samuel Thibault for testing!
gdb/
* config/i386/i386gnu.mh (NATDEPFILES): Remove core-regset.o.
* i386gnu-nat.c: Do not include <sys/procfs.h> or "gregset.h".
(CREG_OFFSET, creg_offset, CREG_ADDR): Remove.
(supply_gregset, supply_fpregset): Remove.
* i386gnu-tdep.c (i386gnu_gregset_reg_offset): New variable.
(i386gnu_init_abi): Set tdep->gregset_reg_offset, gregset_num_regs,
and sizeof_gregset.
Nick Clifton [Mon, 1 Dec 2014 11:19:39 +0000 (11:19 +0000)]
Add checks for memory access violations exposed by fuzzed archives.
PR binutils/17531
* dwarf.c (process_cu_tu_index): Check for an out of range row
index.
* elfcomm.c (adjust_relative_path): Change name_len parameter to
an unsigned long. Check for path length overflow.
(process_archive_index_and_symbols): Check for invalid header
size.
(setup_archive): Add checks for invalid archives.
(get_archive_member_name): Add range checks.
* elfcomm.h (adjust_relative_path): Update prototyoe.
* readelf.c (process_archive): Add range checks.
Yao Qi [Tue, 25 Nov 2014 08:07:45 +0000 (16:07 +0800)]
Don't enable gdbtk in testsuite
When I skim configure.ac and Makefile.in in gdb/testsuite, I happen to
see that directory gdb.gdbtk is added to subdirs, however it doesn't
exist. gdb/testsuite/gdb.gdbtk was removed by the patch below,
[rfa] git repo fixup: delete gdb/testsuite/gdb.gdbtk
http://thread.gmane.org/gmane.comp.gdb.patches/61489
and we should cleanup configure.ac accordingly.
gdb/testsuite:
2014-12-01 Yao Qi <yao@codesourcery.com>
* configure.ac: Remove AC_ARG_ENABLE for gdbtk. Don't invoke
AC_CONFIG_SUBDIRS(gdb.gdbtk).
* configure: Re-generated.
GDB Administrator [Mon, 1 Dec 2014 00:00:09 +0000 (00:00 +0000)]
Automatic date update in version.in
Jan Kratochvil [Sun, 30 Nov 2014 19:25:48 +0000 (20:25 +0100)]
Add add-auto-load-scripts-directory.
There is already "add-auto-load-safe-path" which works
like "set auto-load safe-path" but in append mode.
There was missing an append equivalent for "set auto-load scripts-directory".
ABRT has directory /var/cache/abrt-di/ as an alternative one
to /usr/lib/debug/ . Therefore ABRT needs to use -iex parameters to add this
/var/cache/abrt-di/ directory as a first-class debuginfo directory.
Using absolute "set auto-load scripts-directory" would hard-code the path
possibly overriding local system directory additions; besides it would not be
nice anyway.
gdb/ChangeLog
2014-11-30 Jan Kratochvil <jan.kratochvil@redhat.com>
Add add-auto-load-scripts-directory.
* NEWS (Changes since GDB 7.8): Add add-auto-load-scripts-directory.
* auto-load.c (add_auto_load_dir): New function.
(_initialize_auto_load): Install it.
gdb/doc/ChangeLog
2014-11-30 Jan Kratochvil <jan.kratochvil@redhat.com>
Add add-auto-load-scripts-directory.
* gdb.texinfo (Auto-loading): Add add-auto-load-scripts-directory link.
(objfile-gdbdotext file): Add add-auto-load-scripts-directory.
Jan Kratochvil [Sun, 30 Nov 2014 19:22:24 +0000 (20:22 +0100)]
Fix add-auto-load-safe-path typo.
gdb/doc/ChangeLog
2014-11-30 Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.texinfo (Auto-loading safe path): Fix add-auto-load-safe-path
description typo.
Martin Galvan [Sun, 30 Nov 2014 15:34:15 +0000 (19:34 +0400)]
frame.c: Fix the check for FID_STACK_INVALID in frame_id_eq()
I noticed in frame_id_eq() we were checking for the "l" frame_id being
invalid twice instead of checking both "l" and "r", so this patch
corrects it.
gdb/ChangeLog:
* frame.c (frame_id_eq): Fix the check for FID_STACK_INVALID.
Alan Modra [Sat, 29 Nov 2014 08:43:17 +0000 (19:13 +1030)]
Power4 should treat mftb as extended mfspr mnemonic
On further reading of ISA manual it appears gas should have been
treating mftb and mftbu as extended mnemonics for mfspr, for ISA 2.03
and later.
opcodes/
* ppc-opc.c (powerpc_opcodes): Make mftb* generate mfspr for
power4 and later.
gas/testsuite/
* gas/ppc/a2.d: Update for mftb change.
* gas/ppc/476.d: Likewise.
Alan Modra [Thu, 27 Nov 2014 04:46:49 +0000 (15:16 +1030)]
Don't output symbol version definitions for non-DT_NEEDED libs
PR 16452, 16457
* elflink.c (_bfd_elf_link_find_version_dependencies): Exclude
symbols from libraries that won't be listed in DT_NEEDED.
(elf_link_output_extsym): Don't output verdefs for such symbols.
GDB Administrator [Sun, 30 Nov 2014 00:00:11 +0000 (00:00 +0000)]
Automatic date update in version.in
Siva Chandra [Sat, 29 Nov 2014 17:38:33 +0000 (09:38 -0800)]
Check that thread stack temps are not already enabled before enabling them.
This fixes a regression introduced by
6c659fc2c7cd2da6d2b9a3d7c38597ad3821832a.
gdb/ChangeLog:
* eval.c (evaluate_subexp): Check that thread stack temporaries
are not already enabled before enabling them.
Yao Qi [Fri, 28 Nov 2014 08:17:37 +0000 (16:17 +0800)]
[arm] compute framereg and framesize when needed
I find local variables framereg and framesize is only used when cache
isn't NULL. This patch to move the code into "if (cache)" block.
gdb:
2014-11-29 Yao Qi <yao@codesourcery.com>
* arm-tdep.c (arm_analyze_prologue): Move local variables
'framereg' and 'framesize' to inner block. Move code to
inner block too.
Siva Chandra [Tue, 11 Nov 2014 13:43:03 +0000 (05:43 -0800)]
Enable chained function calls in C++ expressions.
gdb/ChangeLog:
* eval.c: Include gdbthread.h.
(evaluate_subexp): Enable thread stack temporaries before
evaluating a complete expression and clean them up after the
evaluation is complete.
* gdbthread.h: Include common/vec.h.
(value_ptr): New typedef.
(VEC (value_ptr)): New vector type.
(value_vec): New typedef.
(struct thread_info): Add new fields stack_temporaries_enabled
and stack_temporaries.
(enable_thread_stack_temporaries)
(thread_stack_temporaries_enabled_p, push_thread_stack_temporary)
(get_last_thread_stack_temporary)
(value_in_thread_stack_temporaries): Declare.
* gdbtypes.c (class_or_union_p): New function.
* gdbtypes.h (class_or_union_p): Declare.
* infcall.c (call_function_by_hand): Store return values of class
type as temporaries on stack.
* thread.c (enable_thread_stack_temporaries): New function.
(thread_stack_temporaries_enabled_p, push_thread_stack_temporary)
(get_last_thread_stack_temporary): Likewise.
(value_in_thread_stack_temporaries): Likewise.
* value.c (value_force_lval): New function.
* value.h (value_force_lval): Declare.
gdb/testsuite/ChangeLog:
* gdb.cp/chained-calls.cc: New file.
* gdb.cp/chained-calls.exp: New file.
* gdb.cp/smartp.exp: Remove KFAIL for "p c2->inta".
GDB Administrator [Sat, 29 Nov 2014 00:00:09 +0000 (00:00 +0000)]
Automatic date update in version.in
Sandra Loosemore [Fri, 28 Nov 2014 22:41:32 +0000 (14:41 -0800)]
Remove broken nios2 assembler dwim support.
2014-11-28 Sandra Loosemore <sandra@codesourcery.com>
include/opcode/
* nios2.h (NIOS2_INSN_ADDI, NIOS2_INSN_ANDI): Delete.
(NIOS2_INSN_ORI, NIOS2_INSN_XORI): Delete.
(NIOS2_INSN_OPTARG): Renumber.
opcodes/
* nios2-opc.c (nios2_r1_opcodes): Remove deleted attributes
from descriptors.
gas/
* config/tc-nios2.c (can_evaluate_expr, get_expr_value): Delete.
(output_addi, output_andi, output_ori, output_xori): Delete.
(md_assemble): Remove calls to deleted functions.
gas/testsuite/
* gas/nios2/nios2.exp: Make "movi" a list test.
* gas/nios2/movi.s: Adjust comments, add another case.
* gas/nios2/movi.l: New.
* gas/nios2/movi.d: Delete.
Simon Marchi [Fri, 28 Nov 2014 16:18:48 +0000 (11:18 -0500)]
Fix prints in tests for Python 3
Python 3's print requires to use parentheses, so this patch adds them
where they were missing.
gdb/testsuite/ChangeLog:
* gdb.ada/py_range.exp: Add parentheses to calls to print.
* gdb.dwarf2/symtab-producer.exp: Same.
* gdb.gdb/python-interrupts.exp: Same.
* gdb.gdb/python-selftest.exp: Same.
* gdb.python/py-linetable.exp: Same.
* gdb.python/py-type.exp: Same.
* gdb.python/py-value-cc.exp: Same.
* gdb.python/py-value.exp: Same.
Oleg Endo [Fri, 28 Nov 2014 15:39:39 +0000 (19:39 +0400)]
Correct fabs and fneg insns in simulator
It seems that the implementation of the SH fabs and fneg insns in the
simulator is not correct. They use the FP_UNARY macro which checks the
FPSCR.PR setting and raises an exception if PR = 1 (double precision)
and the register number is not even (i.e. a valid DF reg number).
For normal unary FP insns this is fine. However, fneg and fabs perform
the same (integer) operations regardless of the FPSCR.PR setting.
This issue initially popped up here
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63260
I've checked some of the failing tests mentioned in GCC PR 63260 above
with the patch applied and the failures go away.
sim/sh/ChangeLog (tiny patch):
* gencode.c (fabs, fneg): Implement as integer operation
instead of using the FP_UNARY macro.
Pierre Muller [Fri, 28 Nov 2014 15:21:58 +0000 (19:21 +0400)]
Fix amd64 dwarf register number mapping (MMX register and higher)
Dwarf register numbers are defined in "System V Application Binary
Interface AMD64 Architecture Processor Supplement Draft Version 0.99.6"
The amd64_dwarf_regmap array is missing the 8 MMX registers in Figure
3.36: DWARF Register Number Mapping page 57. This leads to a wrong
value for the registers past this point.
gdb/ChangeLog:
Pushed by Joel Brobecker <brobecker@adacore.com>.
* amd64-tdep.c (amd64_dwarf_regmap array): Add missing MMX
registers.
Tested on x86_64-linux.
Ulrich Weigand [Fri, 28 Nov 2014 14:53:05 +0000 (15:53 +0100)]
Remove (dead-code) native core file sniffers on Linux targets
Since Andreas Arnez' recent patch series, all Linux targets install
gdbarch_iterate_over_regset_sections routines. This means that on
Linux native targets, old-style core sniffers are never used.
Most Linux targets haven't been using such sniffers for a long time
anyway, but a couple remain: ia64 and sparc use core-regset.o, and
m68k installs its own core_fns. All this is now dead code, which
this commit removes.
gdb/
2014-11-28 Ulrich Weigand <uweigand@de.ibm.com>
* config/ia64/linux.mh (NATDEPFILES): Remove core-regset.o.
* config/sparc/linux.mh (NATDEPFILES): Likewise.
* config/sparc/linux64.mh (NATDEPFILES): Likewise.
* m68klinux-nat.c (fetch_core_registers): Remove.
(linux_elf_core_fns): Remove.
(_initialize_m68k_linux_nat): Do not call deprecated_add_core_fns.
Joel Brobecker [Fri, 28 Nov 2014 14:37:08 +0000 (18:37 +0400)]
gdb_realpath: Rework comment about handling on Windows.
Rework the comment to explain why we're still relying on GetFullPathName
even though gnulib ensures that canonicalize_file_name is now available
on all platforms, including Windows.
gdb/ChangeLog:
* utils.c (gdb_realpath): Rework comment about handling on
Windows.
Yao Qi [Sun, 23 Nov 2014 14:19:49 +0000 (22:19 +0800)]
Import rename module
This patch is to import rename module.
gdb:
2014-11-28 Yao Qi <yao@codesourcery.com>
* gnulib/update-gnulib.sh (IMPORTED_GNULIB_MODULES): Add
rename.
* gnulib/aclocal.m4: Re-generated.
* gnulib/config.in: Re-generated.
* gnulib/configure: Re-generated.
* gnulib/import/Makefile.am: Re-generated.
* gnulib/import/Makefile.in: Re-generated.
* gnulib/import/m4/gnulib-cache.m4: Re-generated.
* gnulib/import/m4/gnulib-comp.m4: Re-generated.
* import/basename-lgpl.c: New file.
* import/dirname-lgpl.c: New file.
* import/dirname.h: New file.
* import/m4/dirname.m4: New file.
* import/m4/malloc.m4: New file.
* import/m4/rename.m4: New file.
* import/m4/rmdir.m4: New file.
* import/m4/stdio_h.m4: New file.
* import/malloc.c: New file.
* import/rename.c: New file.
* import/rmdir.c: New file.
* import/same-inode.h: New file.
* import/stdio.c: New file.
* import/stdio.in.h: New file.
* import/stripslash.c: New file.
Yao Qi [Mon, 24 Nov 2014 06:09:43 +0000 (14:09 +0800)]
Use canonicalize_file_name unconditionally
gdb:
2014-11-28 Yao Qi <yao@codesourcery.com>
* configure.ac (AC_CHECK_FUNCS): Remove canonicalize_file_name
and realpath.
* config.in: Re-generated.
* configure: Re-generated.
* utils.c (gdb_realpath): Remove code calling realpath,
canonicalize_file_name and pathconf.
[!_WIN32]: Call canonicalize_file_name.
Yao Qi [Sun, 23 Nov 2014 14:02:50 +0000 (22:02 +0800)]
Import canonicalize-lgpl
This patch is to import canonicalize-lgpl module, which provides
readlpath and canonicalize_file_name.
gdb:
2014-11-28 Yao Qi <yao@codesourcery.com>
* gnulib/update-gnulib.sh (IMPORTED_GNULIB_MODULES): Add
canonicalize-lgpl.
* aclocal.m4: Re-generated.
* config.in: Re-generated.
* configure: Re-generated.
* import/Makefile.am: Re-generated.
* import/Makefile.in: Re-generated.
* import/m4/gnulib-cache.m4: Re-generated.
* import/m4/gnulib-comp.m4: Re-generated.
* import/canonicalize-lgpl.c: New file.
* import/extra/snippet/_Noreturn.h: New file.
* import/m4/canonicalize.m4: New file.
* import/m4/double-slash-root.m4: New file.
* import/m4/eealloc.m4: New file.
* import/m4/malloca.m4: New file.
* import/m4/nocrash.m4: New file.
* import/m4/stdlib_h.m4: New file.
* import/malloca.c: New file.
* import/malloca.h: New file.
* import/malloca.valgrind: New file.
Yao Qi [Thu, 6 Nov 2014 12:34:28 +0000 (20:34 +0800)]
Use lstat unconditionally
Since lstat gnulib module is imported, we can use it unconditionally.
lstat usage was introduced by this patch
https://sourceware.org/ml/gdb-patches/2012-01/msg00390.html
during the review, it was suggested to import gnulib lstat module, but
we didn't do that.
gdb:
2014-11-28 Yao Qi <yao@codesourcery.com>
* configure.ac (AC_CHECK_FUNCS): Remove lstat.
* config.in, configure: Regenerate.
* symfile.c (find_separate_debug_file_by_debuglink): Remove
code checking HAVE_LSTAT is defined.
Yao Qi [Sun, 23 Nov 2014 13:54:45 +0000 (21:54 +0800)]
Import lstat
This patch is to import lstat gnulib module.
gdb:
2014-11-28 Yao Qi <yao@codesourcery.com>
* gnulib/update-gnulib.sh (IMPORTED_GNULIB_MODULES): Add
lstat.
* gnulib/aclocal.m4: Re-generated.
* gnulib/config.in: Re-generated.
* gnulib/configure: Re-generated.
* gnulib/import/Makefile.am: Re-generated.
* gnulib/import/Makefile.in: Re-generated.
* gnulib/import/m4/gnulib-cache.m4: Re-generated.
* gnulib/import/m4/gnulib-comp.m4: Re-generated.
* gnulib/import/lstat.c: New file.
* gnulib/import/m4/lstat.m4: New file.
Yao Qi [Tue, 4 Nov 2014 14:17:02 +0000 (22:17 +0800)]
Use readlink unconditionally
Since readlink module is imported, we can use it unconditionally.
This patch is to remove configure checks and HAVE_READLINK checks in
code. It was mentioned in the patch below
[RFA/commit] gdbserver: return ENOSYS if readlink not supported.
https://sourceware.org/ml/gdb-patches/2012-02/msg00148.html
to use readlink in gdbserver, but we chose something simple at that
moment.
gdb:
2014-11-28 Yao Qi <yao@codesourcery.com>
* configure.ac (AC_CHECK_FUNCS): Remove readlink.
* config.in, configure: Re-generate.
* inf-child.c (inf_child_fileio_readlink): Don't check
HAVE_READLINK is defined.
gdb/gdbserver:
2014-11-28 Yao Qi <yao@codesourcery.com>
* configure.ac(AC_CHECK_FUNCS): Remove readlink.
* config.in, configure: Re-generate.
* hostio.c (handle_unlink): Remove code checking HAVE_READLINK
is defined.
Yao Qi [Sun, 23 Nov 2014 13:49:20 +0000 (21:49 +0800)]
Import readlink
This patch is to import readlink gnulib module. stat module is imported
too, but it isn't used by gdb.
gdb:
2014-11-28 Yao Qi <yao@codesourcery.com>
* gnulib/update-gnulib.sh (IMPORTED_GNULIB_MODULES): Add readlink.
* gnulib/aclocal.m4: Re-generated.
* gnulib/config.in: Likewise.
* gnulib/configure: Likewise.
* gnulib/import/Makefile.am: Likewise.
* gnulib/import/Makefile.in: Likewise.
* gnulib/import/m4/gnulib-cache.m4: Likewise.
* gnulib/import/m4/gnulib-comp.m4: Likewise.
* gnulib/import/dosname.h: New file
* gnulib/import/m4/largefile.m4: New file.
* gnulib/import/m4/readlink.m4: New file.
* gnulib/import/m4/stat.m4: New file.
* gnulib/import/readlink.c: New file.
* gnulib/import/stat.c: New file.
Yao Qi [Fri, 28 Nov 2014 09:23:26 +0000 (17:23 +0800)]
Fix date in changelog
Alan Modra [Thu, 27 Nov 2014 23:40:44 +0000 (10:10 +1030)]
Sanity checks on version section
* elf.c (_bfd_elf_slurp_version_tables): Exit loops when vn_next/
vna_next/vd_next/vda_next is zero. Correct counts.
Alan Modra [Fri, 28 Nov 2014 02:51:52 +0000 (13:21 +1030)]
Don't deprecate powerpc mftb insn
mftb is marked phased out in the architecture manual, but we can keep
it as an extended mnemonic for mftbl.
* ppc-opc.c (powerpc_opcodes <mftb>): Don't deprecate for power7.
(TB): Delete.
(insert_tbr, extract_tbr): Validate tbr number.
Alan Modra [Fri, 28 Nov 2014 03:59:23 +0000 (14:29 +1030)]
Fix build breakage on 32-bit targets with 64-bit bfd
* readelf.c (get_32bit_elf_symbols): Cast bfd_size_type values to
unsigned long for %lx.
(get_64bit_elf_symbols, process_section_groups): Likewise.
Yao Qi [Fri, 28 Nov 2014 03:21:48 +0000 (11:21 +0800)]
Match library name prefixed with sysroot
We enable systemtap probe in glibc recently, and see the following gdb fail,
(gdb) set solib-absolute-prefix /.
...
Stopped due to shared library event:^M
Inferior loaded /./foo/bar/gdb.base/break-probes-solib.so
...
(gdb) FAIL: gdb.base/break-probes.exp: run til our library loads (the program exited)
$binfile_lib is /foo/bar/gdb.base/break-probes-solib.so, but the
sysroot is prefixed in solib.c:solib_find, as comments described:
Global variable GDB_SYSROOT is used as a prefix directory
to search for shared libraries if they have an absolute path.
so the output becomes "/./foo/bar/gdb.base/break-probes-solib.so", which
is still correct. However, the test repeatedly continue the program
and tries to match $binfile_lib, finally, the program exits and the
test fails.
This patch is to adjust the pattern to match $sysroot$binfile_lib
instead of $binfile_lib.
gdb/testsuite:
2014-11-28 Yao Qi <yao@codesourcery.com>
* gdb.base/break-probes.exp: Match library name prefixed with
sysroot.
GDB Administrator [Fri, 28 Nov 2014 00:00:09 +0000 (00:00 +0000)]
Automatic date update in version.in
Espen Grindhaug [Thu, 27 Nov 2014 15:49:23 +0000 (15:49 +0000)]
Fixes an infinite loop in readelf parsing a corrupt binary, and other minor corrections.
PR binutils/17531
* readelf.c (get_data): Move excessive length check to earlier on
in the function and allow for wraparound in the arithmetic.
(get_32bit_elf_symbols): Terminate early if the section size is
zero. Check for an invalid sh_entsize. Check for an index
section with an invalid size.
(get_64bit_elf_symbols): Likewise.
(process_section_groups): Check for an invalid sh_entsize.
H.J. Lu [Thu, 27 Nov 2014 14:41:58 +0000 (06:41 -0800)]
Update mips tests with symbol version string
* ld-mips-elf/got-vers-1.rd: Add symbol version string to
versioned symbol names in dynamic relocation.
* ld-mips-elf/reloc-estimate-1.d: Likewise.
* ld-mips-elf/tlsdyn-o32-1.got: Likewise.
* ld-mips-elf/tlsdyn-o32-2.got: Likewise.
* ld-mips-elf/tlsdyn-o32-3.got: Likewise.
* ld-mips-elf/tlslib-o32-ver.got: Likewise.
Simon Marchi [Wed, 26 Nov 2014 18:03:57 +0000 (13:03 -0500)]
Fix test always passing in python/py-linetable.exp
The following test is found in python/py-linetable.exp:
gdb_test "python print sorted(fset)" \
"\[20L, 21L, 22L, 24L, 25L, 28L, 29L, 30L, 32L, 33L, 37L, 39L, 40L, 42L, 44L, 45L, 46L\].*" \
"Test frozen set contains line numbers"
I noticed that it passed when using Python 3, even though it should fail
because of the missing parentheses for the call print.
There needs to be more escaping of the square brackets. Currently, it is
interpreted as "any one character from this big list of characters,
followed by .*". When adding the required amount of backslashes, the
test starts failing as it should.
Moreover, both in Python 2.7 and Python 3.3 the numbers don't have the L
suffix, so now the test fails because of that. Anybody knows why they
were there in the first place? I just tested with Python 2.4 and there
are no Ls.
gdb/testsuite/ChangeLog:
* gdb.python/py-linetable.exp: Escape properly sorted(fset)
test expected output. Add parentheses for the call to print.
Remove L suffix from integers.
Signed-off-by: Simon Marchi <simon.marchi@ericsson.com>
Nick Clifton [Thu, 27 Nov 2014 12:19:10 +0000 (12:19 +0000)]
Fixes a few more memory access violations exposed by fuzzed binaries.
PR binutils/17512
* ecoff.c (_bfd_ecoff_slurp_symbol_table): Warn about and correct
a discrepancy between the isymMax and ifdMax values in the
symbolic header.
* elf.c (_bfd_elf_print_private_bfd_data): Fix the range check
scanning the external dynamic entries.
GDB Administrator [Thu, 27 Nov 2014 00:00:13 +0000 (00:00 +0000)]
Automatic date update in version.in
Mark Wielaard [Mon, 24 Nov 2014 20:24:25 +0000 (21:24 +0100)]
dwarf.c handle new DWARFv5 C11, C++11 and C++14 DW_LANG constants.
binutils/ChangeLog
* dwarf.c (read_and_display_attr_value): Handle DW_LANG_C11,
DW_LANG_C_plus_plus_11 and DW_LANG_C_plus_plus_14.
Doug Evans [Wed, 26 Nov 2014 22:44:46 +0000 (14:44 -0800)]
gdb.dwarf2/dw2-op-out-param.S: Fix comment.
gdb/ChangeLog:
* gdb.dwarf2/dw2-op-out-param.S: Fix comment.
Cary Coutant [Wed, 26 Nov 2014 22:41:46 +0000 (14:41 -0800)]
Update list of debug sections for --strip-debug-xxx options.
Add .debug_gdb_scripts, .debug_gnu_pubnames, .debug_gnu_pubtypes,
and .debug_str_offsets to lists of sections to strip or keep
when stripping debug info.
gold/
* layout.cc (gdb_sections): Keep .debug_gdb_scripts and
.debug_str_offsets; strip .debug_gnu_pubnames and
.debug_gnu_pubtypes.
(lines_only_debug_sections): Strip all four new sections.
Han Shen [Wed, 26 Nov 2014 18:34:46 +0000 (10:34 -0800)]
Fix for gold linking tlsdesc into an executable with -pie.
(Also included in this patch is a minor typo fix in gold/ChangeLog.)
When linking the following tlsdesc access sequence into an executable with -pie,
adrp x0, :tlsdesc:tls_gd
ldr x1, [x0, #:tlsdesc_lo12:tls_gd]
add x0, x0, :tlsdesc_lo12:tls_gd
.tlsdesccall tls_gd
blr x1
mrs x1, tpidr_el0
add x0, x1, x0
ldr w0, [x0]
current gold-aarch64 backend does tls-desc-gd-to-ie relaxation, into
adrp x0, 1000 <__FRAME_END__+0x720>
ldr x1, [x0,#4064] ;; <=== the target register should be x0
nop
nop
mrs x1, tpidr_el0
add x0, x1, x0
ldr w0, [x0]
This code is wrong. The fix changes ldr target register into x0.
Nick Clifton [Wed, 26 Nov 2014 14:11:23 +0000 (14:11 +0000)]
More fixes for memory access errors triggered by attemps to examine corrupted binaries.
PR binutils/17512
* dwarf.c (display_block): Do nothing if the block starts after
the end of the buffer.
(read_and_display_attr_value): Add range checks.
(struct Frame_Chunk): Make the ncols and ra fields unsigned.
(frame_need_space): Test for an ncols of zero.
(read_cie): Fail if the augmentation data extends off the end of
the buffer.
(display_debug_frames): Add checks for read_cie failing. Add
range checks.
* coff-h8300.c (rtype2howto): Replace abort with returning a NULL
value.
* coff-h8500.c (rtype2howto): Likewise.
* coff-tic30.c (rtype2howto): Likewise.
* coff-z80.c (rtype2howto): Likewise.
* coff-z8k.c (rtype2howto): Likewise.
* coff-ia64.c (RTYPE2HOWTO): Always return a valid howto.
* coff-m68k.c (m68k_rtype2howto): Return a NULL howto if none
could be found.
* coff-mcore.c (RTYPE2HOWTO): Add range checking.
* coff-w65.c (rtype2howto): Likewise.
* coff-we32k.c (RTYPE2HOWTO): Likewise.
* pe-mips.c (RTYPE2HOWTO): Likewise.
* coff-x86_64.c (coff_amd64_reloc): Likewise. Replace abort with
an error return.
* coffcode.h (coff_slurp_reloc_table): Allow the rel parameter to
be unused.
* coffgen.c (make_a_section_from_file): Check the length of a
section name before testing to see if it is a debug section name.
(coff_object_p): Zero out any uninitialised bytes in the opt
header.
* ecoff.c (_bfd_ecoff_slurp_symbolic_info): Test for the raw
source being empty when there are values to be processed.
(_bfd_ecoff_slurp_symbol_table): Add range check.
* mach-o.c (bfd_mach_o_canonicalize_one_reloc): Likewise.
(bfd_mach_o_mangle_sections): Move test for too many sections to
before the allocation of the section table.
(bfd_mach_o_read_symtab_strtab): If the read fails, free the
memory and nullify the symbol pointer.
* reloc.c (bfd_generic_get_relocated_section_contents): Add
handling of a bfd_reloc_notsupported return value.
* versados.c (EDATA): Add range checking.
(get_record): Likewise.
(process_otr): Check for contents being available before updating
them.
(versados_canonicalize_reloc): Add range check.
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