This patch adds ctor and dtor to dwarf2_frame_state, so that we can
remove one cleanup "old_chain".
gdb:
2017-08-11 Yao Qi <yao.qi@linaro.org>
* dwarf2-frame.c (dwarf2_frame_state_free): Remove.
(dwarf2_frame_state::dwarf2_frame_state): New.
(dwarf2_frame_state::~dwarf2_frame_state): New.
(dwarf2_fetch_cfa_info): Update.
(dwarf2_frame_cache): Remove old_chain. Change 'fs' to an object
rather than a pointer. Update code.
* dwarf2-frame.h (struct dwarf2_frame_state): Declare ctor and
dtor.
<data_align, code_align, retaddr_column>: Change them to const.
<armcc_cfa_offsets_sf, armcc_cfa_offsets_reversed>: Change them
to bool.
dwarf2_frame_state_reg.exp_len is only used together with .loc.exp, so
it makes more sense to exp_len to the union as well.
gdb:
2017-08-11 Yao Qi <yao.qi@linaro.org>
* dwarf2-frame.h (struct dwarf2_frame_state_reg) <exp_len>: Remove.
<loc.exp>: New field.
* dwarf2-frame.c (execute_cfa_program): Update.
(dwarf2_frame_prev_register): Update.
Currently, if you try to use the array version of
gdb::unique_xmalloc_ptr (i.e., std::unique_ptr) in order to have
access to operator[], like:
gdb::unique_xmalloc_ptr<char[]> buf ((char *) xmalloc (10));
return buf[0];
then the build fails, like:
/usr/include/c++/5.3.1/bits/unique_ptr.h: In instantiation of ‘std::unique_ptr<_Tp [], _Dp>::~unique_ptr() [with _Tp = char; _Dp = gdb::xfree_deleter<char []>]’:
main.c:30:61: required from here
/usr/include/c++/5.3.1/bits/unique_ptr.h:484:17: error: no match for call to ‘(std::unique_ptr<char [], gdb::xfree_deleter<char []> >::deleter_type {aka gdb::xfree_deleter<char []>}) (char*&)’
get_deleter()(__ptr);
^
In file included from src/gdb/common/common-defs.h:92:0,
from src/gdb/defs.h:28,
from src/gdb/main.c:20:
src/gdb/common/gdb_unique_ptr.h:34:8: note: candidate: void gdb::xfree_deleter<T>::operator()(T*) const [with T = char []]
void operator() (T *ptr) const { xfree (ptr); }
^
src/gdb/common/gdb_unique_ptr.h:34:8: note: no known conversion for argument 1 from ‘char*’ to ‘char (*)[]’
Makefile:1911: recipe for target 'main.o' failed
make: *** [main.o] Error 1
The problem is that we're missing an xfree_deleter specialization for
arrays.
gdb/ChangeLog:
2017-08-10 Pedro Alves <palves@redhat.com>
* common/gdb_unique_ptr.h (xfree_deleter<T[]>): Define.
FreeBSD's native target uses linked-lists to keep track of pending fork
events and fake vfork done events. Replace the first list with std::list
and the second with std::forward_list.
gdb/ChangeLog:
* fbsd-nat.c (struct fbsd_fork_info): Remove.
(fbsd_pending_children): Use std::list.
(fbsd_remember_child): Likewise.
(fbsd_is_child_pending): Likewise.
(fbsd_pending_vfork_done): Use std::forward_list.
(fbsd_add_vfork_done): Likewise.
(fbsd_is_vfork_done_pending): Likewise.
(fbsd_next_vfork_done): Likewise.
- Use a custom deleter with std::unique_ptr to free() memory returned
by kinfo_getvmmap().
- Use std::string with string_printf() to generate the pathname of the
procfs 'map' file.
- Use gdb::byte_vector to manage the dynamic buffer for
TARGET_OBJECT_AUXV and the dynamically allocated array of LWP IDs.
gdb/ChangeLog:
* fbsd-nat.c [HAVE_KINFO_GETVMMAP] (struct free_deleter): New.
(fbsd_find_memory_regions): Use free_deleter with std::unique_ptr.
[!HAVE_KINFO_GETVMMAP] (fbsd_find_memory_regions): Use std::string
for `mapfilename'.
(fbsd_xfer_partial): Use gdb::byte_vector.
(fbsd_add_threads): Likewise.
The documentation for the cmd_list field of the Z0 packet refers to its
content as a conditional expression, which seems like a copy-paste error
from the cond_list field.
gdb/doc/ChangeLog:
* gdb.texinfo (Packets): Fix Z0 cmd_list doc referring to
conditional expression.
I happened to notice that skiplist_entry, in skip.c, contains a
gdb::optional<compiled_regex> -- but that this object's destructor is
never run. This can result in a memory leak.
This patch fixes the bug by applying a bit more C++: changing this
code to use new and delete, and std::unique_ptr; and removing cleanups
in the process.
Built and regression tested on x86-64 Fedora 25.
ChangeLog
2017-08-09 Tom Tromey <tom@tromey.com>
* skip.c (skiplist_entry): New constructor.
(skiplist_entry::enabled, skiplist_entry::function_is_regexp)
(skiplist_entry::file_is_glob): Now bool.
(skiplist_entry::file, skiplist_entry::function): Now
std::string.
(make_skip_entry): Return a unique_ptr. Use new.
(free_skiplist_entry, free_skiplist_entry_cleanup)
(make_free_skiplist_entry_cleanup): Remove.
(skip_command, skip_disable_command, add_skiplist_entry)
(skip_form_bytes, compile_skip_regexp, skip_command, skip_info)
(skip_file_p, skip_gfile_p, skip_function_p, skip_rfunction_p)
(function_name_is_marked_for_skip): Update.
(skip_delete_command): Update. Use delete.
Recommit with missing header files added.
gdb/
* aarch64-linux-tdep.c: Include "auxv.h" and "elf/common.h".
(aarch64_linux_core_read_description): New function.
(aarch64_linux_init_abi): Register gdbarch_core_read_description.
Currently, AArch64 only have one target description which is tdesc_aarch64. So,
we haven't implemented any target description detection mechanism for core file.
This patch is an initial implementation of core_read_description method. Future
features can use this to return selected description.
gdb/
* aarch64-linux-tdep.c (aarch64_linux_core_read_description): New
function.
(aarch64_linux_init_abi): Register gdbarch_core_read_description.
To help avoid issues like the one fixed by e88e8651cf ("Fix memory
leak in cp-support.c").
gdb/ChangeLog:
2017-08-09 Pedro Alves <palves@redhat.com>
* cp-name-parser.y (cp_comp_to_string): Return a
gdb::unique_xmalloc_ptr<char>.
* cp-support.c (replace_typedefs_qualified_name)
(replace_typedefs): Adjust to use gdb::unique_xmalloc_ptr<char>.
(cp_canonicalize_string_full): Use op= instead of explicit
convertion.
(cp_class_name_from_physname, method_name_from_physname)
(cp_func_name, cp_remove_params): Adjust to use
gdb::unique_xmalloc_ptr<char>.
* cp-support.h (cp_comp_to_string): Return a
gdb::unique_xmalloc_ptr<char>.
* python/py-type.c (typy_lookup_type): Adjust to use
gdb::unique_xmalloc_ptr<char>.
The return value of cp_comp_to_string was never freed, creating a
sizable memory leak detectable with valgrind.
==21225== 8 bytes in 1 blocks are definitely lost in loss record 4,599 of 10,949^M
==21225== at 0x4C2DB8F: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)^M
==21225== by 0x4C2FDEF: realloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)^M
==21225== by 0x76CB31: d_growable_string_resize (cp-demangle.c:3963)^M
==21225== by 0x76CB31: d_growable_string_init (cp-demangle.c:3942)^M
==21225== by 0x76CB31: cplus_demangle_print (cp-demangle.c:4308)^M
==21225== by 0x4C9535: cp_comp_to_string(demangle_component*, int) (cp-name-parser.y:1972)^M
==21225== by 0x53E1D4: cp_canonicalize_string_full[abi:cxx11](char const*, char const* (*)(type*, void*), void*) (cp-support.c:530)^M
==21225== by 0x53E360: cp_canonicalize_string_no_typedefs[abi:cxx11](char const*) (cp-support.c:548)^M
==21225== by 0x5D51D2: find_linespec_symbols(linespec_state*, VEC_symtab_ptr*, char const*, VEC_symbolp**, VEC_bound_minimal_symbol_d**) (linespec.c:4030)^M
==21225== by 0x5D6CF6: linespec_parse_basic (linespec.c:1907)
==21279== 32 bytes in 1 blocks are definitely lost in loss record 6,066 of 10,947^M
==21279== at 0x4C2DB8F: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)^M
==21279== by 0x4C2FDEF: realloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)^M
==21279== by 0x76CB31: d_growable_string_resize (cp-demangle.c:3963)^M
==21279== by 0x76CB31: d_growable_string_init (cp-demangle.c:3942)^M
==21279== by 0x76CB31: cplus_demangle_print (cp-demangle.c:4308)^M
==21279== by 0x4C9535: cp_comp_to_string(demangle_component*, int) (cp-name-parser.y:1972)^M
==21279== by 0x53EF14: cp_canonicalize_string[abi:cxx11](char const*) (cp-support.c:569)^M
==21279== by 0x561B75: dwarf2_canonicalize_name(char const*, dwarf2_cu*, obstack*) [clone .isra.210] (dwarf2read.c:20159)
This patch fixes the leak. It is a regression by 2f408ecb.
gdb:
2017-08-09 Alex Lindsay <alexlindsay239@gmail.com>
Yao Qi <yao.qi@linaro.org>
* cp-support.c (cp_canonicalize_string_full): Use
gdb::unique_xmalloc_ptr<char>.
(cp_canonicalize_string): Likewise.
Fix a commit cd6c3b4ffc ("New gdbarch methods breakpoint_kind_from_pc
and sw_breakpoint_from_kind") regression and restore the use of
`->placed_address' rather than `->reqstd_address' as the location for a
memory breakpoint to be inserted at. Previously
`gdbarch_breakpoint_from_pc' was used that made that adjustment in
`default_memory_insert_breakpoint' from the preinitialized value,
however with the said commit that call is gone, so the passed
`->placed_address' has to be used for the initialization.
The regression manifests itself as the inability to debug any MIPS/Linux
compressed ISA dynamic executable as GDB corrupts the dynamic loader
with one of its implicit breakpoints, causing the program to crash, as
seen for example with the `mips-linux-gnu' target, o32 ABI, MIPS16 code,
and the gdb.base/advance.exp test case:
(gdb) continue
Continuing.
Program received signal SIGBUS, Bus error.
_dl_debug_initialize (ldbase=0, ns=0) at dl-debug.c:51
51 r = &_r_debug;
(gdb) FAIL: gdb.base/advance.exp: Can't run to main
gdb/
PR breakpoints/21886
* mem-break.c (default_memory_insert_breakpoint): Use
`->placed_address' rather than `->reqstd_address' for the
breakpoint location.
Fix `set architecture' and `set endian' command disassembly regressions
from commit 39503f8242 ("Delegate opcodes to select disassembler in
GDB"), and commit 003ca0fd22 ("Refactor disassembler selection"), as
well as a MIPS compressed ISA disassembly target regression from commit
6394c60699 ("Don't use print_insn_XXX in GDB"), which caused assertion
failures to trigger.
For example with the `mips-linux-gnu' target we get:
$ cat main.c
int
main (void)
{
return 0;
}
$ gcc -mips32r2 -O2 main.c -o main
$ gcc -mips16 -mips32r2 -O2 main.c -o main16
$ gdb
GNU gdb (GDB) 8.0.50.20170731-git
[...]
(gdb) file main
Reading symbols from main...done.
(gdb) show architecture
The target architecture is set automatically (currently mips:isa32r2)
(gdb) show endian
The target endianness is set automatically (currently big endian)
(gdb) disassemble main
Dump of assembler code for function main:
0x00400500 <+0>: jr ra
0x00400504 <+4>: move v0,zero
End of assembler dump.
(gdb) set architecture mips:isa64r2
The target architecture is assumed to be mips:isa64r2
(gdb) disassemble main
Dump of assembler code for function main:
0x00400500 <+0>:
.../gdb/arch-utils.c:979: internal-error: int default_print_insn(bfd_vma, disassemble_info*): Assertion `info->mach == bfd_get_mach (exec_bfd)' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n) n
[...]
Command aborted.
(gdb) set architecture auto
The target architecture is set automatically (currently mips:isa32r2)
(gdb) set endian little
The target is assumed to be little endian
(gdb) disassemble main
Dump of assembler code for function main:
0x00400500 <+0>:
.../gdb/arch-utils.c:978: internal-error: int default_print_insn(bfd_vma, disassemble_info*): Assertion `info->endian == (bfd_big_endian (exec_bfd) ? BFD_ENDIAN_BIG : BFD_ENDIAN_LITTLE)' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n) n
[...]
Command aborted.
(gdb) set endian auto
The target endianness is set automatically (currently big endian)
(gdb) set architecture i386
The target architecture is assumed to be i386
(gdb) disassemble main
Dump of assembler code for function main:
0x00400500 <+0>:
.../gdb/arch-utils.c:976: internal-error: int default_print_insn(bfd_vma, disassemble_info*): Assertion `info->arch == bfd_get_arch (exec_bfd)' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n) n
[...]
Command aborted.
(gdb) set architecture auto
The target architecture is set automatically (currently mips:isa32r2)
(gdb) file main16
Load new symbol table from "main16"? (y or n) y
Reading symbols from main16...done.
(gdb) disassemble main
Dump of assembler code for function main:
0x00400501 <+0>:
.../gdb/arch-utils.c:979: internal-error: int default_print_insn(bfd_vma, disassemble_info*): Assertion `info->mach == bfd_get_mach (exec_bfd)' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n) n
Command aborted.
(gdb)
Remove the assertions then, restoring previous semantics:
(gdb) file main
Reading symbols from main...done.
(gdb) set architecture mips:isa64r2
The target architecture is assumed to be mips:isa64r2
(gdb) disassemble main
Dump of assembler code for function main:
0x00400500 <+0>: jr ra
0x00400504 <+4>: move v0,zero
End of assembler dump.
(gdb) set endian little
The target is assumed to be little endian
(gdb) disassemble main
Dump of assembler code for function main:
0x00400500 <+0>: j 0x3800c
0x00400504 <+4>: addiu s0,t0,0
End of assembler dump.
(gdb) set architecture i386
The target architecture is assumed to be i386
(gdb) disassemble main
Dump of assembler code for function main:
0x00400500 <+0>: add %eax,%esp
0x00400502 <+2>: add %cl,(%eax)
0x00400504 <+4>: add %al,(%eax)
0x00400506 <+6>: adc %ah,0x0
End of assembler dump.
(gdb) set architecture auto
The target architecture is set automatically (currently mips:isa32r2)
(gdb) set endian auto
The target endianness is set automatically (currently big endian)
(gdb) file main16
Load new symbol table from "main16"? (y or n) y
Reading symbols from main16...done.
(gdb) disassemble main
Dump of assembler code for function main:
0x00400501 <+0>: jr ra
0x00400503 <+2>: li v0,0
End of assembler dump.
(gdb)
gdb/
* arch-utils.c (default_print_insn): Remove arch/mach/endian
assertions.
opcodes/
* disassemble.c (disassembler): Remove arch/mach/endian
assertions.
As an update to commit ede5f15146 ("gdbarch.h: Change
gdbarch_info::tdep_info's type to void *") replace the definition of the
`tdep_info' member in `struct gdbarch_info' with an anonymous union,
comprising the original member, with its type reverted to `struct
gdbarch_tdep_info *', a `tdesc_data' member of a `struct tdesc_arch_data
*' type and an `id' member of an `int *' type. Remove now unnecessary
casts throughout use places then, making code easier to read an less
prone to errors, which may happen with casting.
gdb/
* gdbarch.sh (gdbarch_info): Replace the `tdep_info' member with
a union of `tdep_info', `tdesc_data' and `id'.
* aarch64-tdep.c (aarch64_gdbarch_init): Use `info.tdesc_data'
rather than `info.tdep_info'.
* amd64-linux-tdep.c (amd64_linux_init_abi): Likewise.
* i386-linux-tdep.c (i386_linux_init_abi): Likewise.
* i386-tdep.c (i386_gdbarch_init): Likewise.
* mips-linux-tdep.c (mips_linux_init_abi): Likewise.
* mips-tdep.c (mips_gdbarch_init): Likewise.
* nds32-tdep.c (nds32_gdbarch_init): Likewise.
* rs6000-tdep.c (rs6000_gdbarch_init): Likewise.
* ppc-linux-tdep.c (ppu2spu_sniffer): Use `info.id' rather than
`info.tdep_info'.
(ppc_linux_init_abi): Use `info.tdesc_data' rather than
`info.tdep_info'.
* sparc-tdep.c (sparc32_gdbarch_init): Likewise.
* spu-multiarch.c (spu_gdbarch): Use `info.id' rather than
`info.tdep_info'.
* spu-tdep.c (spu_gdbarch_init): Likewise.
* gdbarch.h: Regenerate.
The dwarf2_string_attr did not allow DW_FORM_GNU_str_index as a form for
string types. This manifested as null strings in the namespace_name
lookup (replaced with "(anonymous namespace)") when debugging
Fission-compiled code.
gdb/ChangeLog:
* dwarf2read.c (dwarf2_string_attr): Allow DW_FORM_GNU_strp_alt.
The recent change introducing gdb_argv introduced some build failures in
remote-sim.c.
/home/emaisin/src/binutils-gdb/gdb/remote-sim.c: In function 'void gdbsim_load(target_ops*, const char*, int)':
/home/emaisin/src/binutils-gdb/gdb/remote-sim.c:573:22: error: conflicting declaration 'gdb_argv argv'
gdb_argv argv (args);
^
/home/emaisin/src/binutils-gdb/gdb/remote-sim.c:565:10: note: previous declaration as 'char** argv'
char **argv;
^~~~
/home/emaisin/src/binutils-gdb/gdb/remote-sim.c: In function 'void gdbsim_open(const char*, int)':
/home/emaisin/src/binutils-gdb/gdb/remote-sim.c:730:25: error: declaration of 'gdb_argv args' shadows a parameter
gdb_argv args (arg_buf);
In gdbsim_load, the new gdb_argv object conflicts with old char **argv
variable. I think the old variable should be removed.
In gdbsim_open, the new gdb_argv object conflicts with the args
parameter. This patch renames it to argv.
Built-tested for a mips host.
gdb/ChangeLog:
* remote-sim.c (gdbsim_load): Remove char **argv local variable.
(gdbsim_open): Rename gdb_argv args object to argv.
This patch changes most sites calling tilde_expand to use
gdb::unique_xmalloc_ptr, rather than a cleanup. It also changes
scan_expression_with_cleanup to return a unique pointer, because the
patch was already touching code in that area.
Regression tested on the buildbot.
ChangeLog
2017-08-05 Tom Tromey <tom@tromey.com>
* compile/compile-object-load.c (compile_object_load): Use
gdb::unique_xmalloc_ptr.
* cli/cli-dump.c (scan_filename): Rename from
scan_filename_with_cleanup. Change return type.
(scan_expression): Rename from scan_expression_with_cleanup.
Change return type.
(dump_memory_to_file, dump_value_to_file, restore_command):
Use gdb::unique_xmalloc_ptr. Update.
* cli/cli-cmds.c (find_and_open_script): Use
gdb::unique_xmalloc_ptr.
* tracefile-tfile.c (tfile_open): Use gdb::unique_xmalloc_ptr.
* symmisc.c (maintenance_print_symbols)
(maintenance_print_msymbols): Use gdb::unique_xmalloc_ptr.
* symfile.c (symfile_bfd_open, generic_load)
(add_symbol_file_command, remove_symbol_file_command): Use
gdb::unique_xmalloc_ptr.
* source.c (openp): Use gdb::unique_xmalloc_ptr.
* psymtab.c (maintenance_print_psymbols): Use
gdb::unique_xmalloc_ptr.
* corelow.c (core_open): Use gdb::unique_xmalloc_ptr.
* breakpoint.c (save_breakpoints): Use gdb::unique_xmalloc_ptr.
* solib.c (solib_map_sections): Use gdb::unique_xmalloc_ptr.
(reload_shared_libraries_1): Likewise.
I ran the gdb.rust tests against Rust 1.20 (beta) and saw a few
failures. The failures all came because a particular item moved to a
different module. Since the particular choice of module name isn't
important here, I simply widened the allowable results.
Tested locally against rustc 1.19, 1.20, and 1.21.
testsuite/ChangeLog
2017-08-05 Tom Tromey <tom@tromey.com>
* gdb.rust/simple.exp: Allow String to appear in a different
namespace.
This removes the few remaining cleanups in the Rust language code.
The main difficulty here was that the earlier code allocated VEC heads
on an obstack. The new code instead introduces an object that
allocates and maintains the storage for whatever vectors are needed
during the parse.
Regression tested on the buildbot.
ChangeLog
2017-08-05 Tom Tromey <tom@tromey.com>
* rust-exp.y (rust_op_ptr, set_field): Remove typedefs.
(rust_op_vector, rust_set_vector): New typedefs.
(current_parser): New global.
(work_obstack): Change to pointer type. Update all users.
(rust_ast, pstate): Remove globals.
(struct rust_parser): New.
(%union) <params, field_inits>: Change type.
(start, tuple_expr, unit_expr, struct_expr_list, literal)
(field_expr, expr_list, maybe_expr_list, type_list): Update.
(ast_call_ish, ast_path, ast_function_type, ast_tuple_type)
(convert_params_to_types, convert_params_to_expression): Change
type of "params".
(ast_string): Change type of "fields".
(rust_parse): Make a rust_parser. Remove cleanups.
(rust_lex_tests): Make and install an auto_obstack.
When I verify my target description changes, I build GDB and GDBserver for
x32, but it failed.
/../../binutils-gdb/gdb/gdbserver/linux-amd64-ipa.c
../../../binutils-gdb/gdb/gdbserver/linux-amd64-ipa.c: In function ‘const target_desc* get_ipa_tdesc(int)’:
../../../binutils-gdb/gdb/gdbserver/linux-amd64-ipa.c:184:10: error: ‘X86_TDESC_AVX512’ was not declared in this scope
case X86_TDESC_AVX512:
^
../../../binutils-gdb/gdb/gdbserver/linux-amd64-ipa.c:185:14: error: ‘tdesc_x32_avx512_linux’ was not declared in this scope
return tdesc_x32_avx512_linux;
^
../../../binutils-gdb/gdb/gdbserver/linux-amd64-ipa.c: In function ‘void initialize_low_tracepoint()’:
../../../binutils-gdb/gdb/gdbserver/linux-amd64-ipa.c:282:36: error: ‘init_registers_x32_avx512_linux’ was not declared in this scope
init_registers_x32_avx512_linux ();
^
ipa_x32_linux_regobj use to be there, but removed by
22049425ce by mistake.
gdb/gdbserver:
2017-08-04 Yao Qi <yao.qi@linaro.org>
* configure.srv (ipa_x32_linux_regobj): New.
* linux-amd64-ipa.c (get_ipa_tdesc): Use X86_TDESC_AVX_AVX512
instead of X86_TDESC_AVX512.
(initialize_low_tracepoint): Call
init_registers_x32_avx_avx512_linux.
This patch fixes the build failure for target i686-w64-mingw32,
In file included from ../../binutils-gdb/gdb/defs.h:786:0,
from ../../binutils-gdb/gdb/gdb.c:19:
../../binutils-gdb/gdb/utils.h:188:20: error: ‘nullptr_t’ has not been declared
bool operator!= (nullptr_t)
^
../../binutils-gdb/gdb/utils.h:193:20: error: ‘nullptr_t’ has not been declared
bool operator== (nullptr_t)
^
gdb:
2017-08-04 Yao Qi <yao.qi@linaro.org>
* utils.h (gdb_argv): Add namespace std for nullptr_t.
After the previous patches in this series, make_cleanup_freeargv and
gdb_buildargv are now unused and can be removed.
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* utils.c (make_cleanup_freeargv, do_freeargv, gdb_buildargv):
Remove.
* utils.h (make_cleanup_freeargv, gdb_buildargv): Remove.
This changes one spot in the Python code to use gdb_argv. This
removes the last cleanup from the Python layer.
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* python/py-param.c (compute_enum_values): Use gdb_argv.
This introduces gdb_argv, a class wrapping an "argv" pointer; that is,
a pointer to a NULL-terminated array of char*, where both the array
and each non-NULL element in the array are xmalloc'd.
This patch then changes most users of gdb_buildargv to use gdb_argv
instead.
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* utils.h (struct gdb_argv_deleter): New.
(gdb_argv): New class.
* utils.c (gdb_argv::reset): New method.
* tracepoint.c (delete_trace_variable_command): Use gdb_argv.
* tracefile.c (tsave_command): Use gdb_argv.
* top.c (new_ui_command): Use gdb_argv.
* symmisc.c (maintenance_print_symbols)
(maintenance_print_msymbols, maintenance_expand_symtabs): Use gdb_argv.
* symfile.c (symbol_file_command, generic_load)
(remove_symbol_file_command): Use gdb_argv.
* stack.c (backtrace_command): Use gdb_argv.
* source.c (add_path, show_substitute_path_command)
(unset_substitute_path_command, set_substitute_path_command):
Use gdb_argv.
* skip.c (skip_command): Use gdb_argv. Use gdb_buildargv.
* ser-mingw.c (pipe_windows_open): Use gdb_argv.
* remote.c (extended_remote_run, remote_put_command)
(remote_get_command, remote_delete_command): Use gdb_argv.
* remote-sim.c (gdbsim_load, gdbsim_create_inferior)
(gdbsim_open): Use gdb_argv.
* python/py-cmd.c (gdbpy_string_to_argv): Use gdb_argv.
* psymtab.c (maintenance_print_psymbols): Use gdb_argv.
* procfs.c (procfs_info_proc): Use gdb_argv.
* interps.c (interpreter_exec_cmd): Use gdb_argv.
* infrun.c (handle_command): Use gdb_argv.
* inferior.c (add_inferior_command, clone_inferior_command):
Use gdb_argv.
* guile/scm-string.c (gdbscm_string_to_argv): Use gdb_argv.
* exec.c (exec_file_command): Use gdb_argv.
* cli/cli-cmds.c (alias_command): Use gdb_argv.
* compile/compile.c (build_argc_argv): Use gdb_argv.
This removes cleanups from gdbpy_decode_line, in favor of a use of
unique_xmalloc_ptr.
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* python/python.c (gdbpy_decode_line): Use unique_xmalloc_ptr.
This changes a few places in the Python code to avoid manual memory
management, in favor of letting std::string do the work.
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* python/python.c (compute_python_string): Return std::string.
(gdbpy_eval_from_control_command): Update.
(do_start_initialization): Use std::string.
* python/py-varobj.c (py_varobj_iter_next): Use string_printf, not
xstrprintf.
* python/py-breakpoint.c (local_setattro): Use string_printf, not
xstrprintf.
This changes the users of do_restore_instream_cleanup to use a
scoped_restore instead. This patch is broken out because it warrants
some additional attention: in particular it's unclear to me whether
current_ui can change in the body of these functions -- but if it can,
then the cleanup would have modified a different UI's instream member.
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* top.h (do_restore_instream_cleanup): Remove.
* top.c (do_restore_instream_cleanup): Remove.
(read_command_file): Use scoped_restore.
* cli/cli-script.c (execute_user_command): Use scoped_restore.
This changes a couple of places to use a scoped_restore when
manipulating command_nest_depth.
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* cli/cli-script.c (execute_user_command)
(execute_control_command): Use scoped_restore.
This changes execute_user_command to remove user_call_depth, using the
size of user_args_stack instead. This avoids a cleanup.
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* cli/cli-script.c (do_restore_user_call_depth): Remove.
(execute_user_command): Remove user_call_depth; use
user_args_stack's size instead.
While working on the next patch in this series, I found that the
global in_user_command is not used. This patch removes it. (I didn't
think to check Insight until submitting this series; and it's not very
convenient to do so, so if someone has it checked out and could look
at it, that would be nice.)
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* top.h (in_user_command): Remove.
* top.c (in_user_command): Remove.
* cli/cli-script.c (do_restore_user_call_depth)
(execute_user_command): Update.
This patch introduces the use of various containers -- std::vector,
std::string, or gdb::byte_vector -- in several spots in gdb that were
using xmalloc and a cleanup.
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* valops.c (search_struct_method): Use gdb::byte_vector.
* valarith.c (value_concat): Use std::vector.
* target.c (memory_xfer_partial): Use gdb::byte_vector.
(simple_search_memory): Likewise.
* printcmd.c (find_string_backward): Use gdb::byte_vector.
* mi/mi-main.c (mi_cmd_data_write_memory): Use gdb::byte_vector.
* gcore.c (gcore_copy_callback): Use gdb::byte_vector.
* elfread.c (elf_rel_plt_read): Use std::string.
* cp-valprint.c (cp_print_value): Use gdb::byte_vector.
* cli/cli-dump.c (restore_section_callback): Use
gdb::byte_vector.
This removes some cleanups from jit.c by using unique_xmalloc_ptr
instead.
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* jit.c (jit_reader_load_command): Use unique_xmalloc_ptr.
This patch replaces tui_restore_gdbout (a cleaup function) with a use
of scoped_restore. This one is broken out into its own patch because
it might slightly change the behavior of gdb: it saves and restores
pagination_enabled, whereas the tui_restore_gdbout unconditionally set
pagination_enabled to 1; and I think this warrants closer review.
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* tui/tui-regs.c (tui_restore_gdbout): Remove.
(tui_register_format): Use scoped_restore.
There were a few more places in gdb that could easily use
scoped_restore, replacing some cleanups.
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* reverse.c (exec_direction_default): Remove.
(exec_reverse_once): Use scoped_restore.
* remote.c (restore_remote_timeout): Remove.
(remote_flash_erase, remote_flash_write, remote_flash_done)
(readchar, remote_serial_write): Use scoped_restore.
* cli/cli-script.c (struct source_cleanup_lines_args)
(source_cleanup_lines): Remove.
(script_from_file): Use scoped_restore.
* cli/cli-cmds.c (source_verbose_cleanup): Remove.
(source_command): Use scoped_restore.
make_cleanup_free_so is used in a single spot. This patch introduces
a unique pointer wrapper for struct so_list, and changes this spot to
use it.
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* utils.h (make_cleanup_free_so): Remove.
* utils.c (do_free_so, make_cleanup_free_so): Remove.
* solist.h (struct so_deleter): New.
(so_list_up): New typedef.
* solib-svr4.c (svr4_read_so_list): Use so_list_up.
This patch replaces make_cleanup_restore_current_language with an RAII
class that saves the current language, and restores it when the object
is destroyed.
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* utils.h (make_cleanup_restore_current_language): Remove.
* utils.c (do_restore_current_language)
(make_cleanup_restore_current_language): Remove.
* parse.c (parse_exp_in_context_1)
(parse_expression_with_language): Use
scoped_restore_current_language.
* mi/mi-main.c (mi_cmd_execute): Use
scoped_restore_current_language.
* language.h (scoped_restore_current_language): New class.
compile/compile.c had its own cleanup to unlink a file. This patch
replaces this cleanup with gdb::unlinker.
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* compile/compile.c (cleanup_unlink_file): Remove.
(compile_to_object): Use gdb::unlinker.
(eval_compile_command): Likewise.
After the preceding patches, make_cleanup_fclose is no longer used, so
remove it.
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* utils.h (make_cleanup_fclose): Remove.
* utils.c (do_fclose_cleanup, make_cleanup_fclose): Remove.
This changes open_terminal_stream to return a gdb_file_up, eliminating
another use of make_cleanup_fclose. Arguably perhaps new_ui should
take ownership of the files using a move, but there is at least one
spot where this isn't appropriate (or at least not currently done), so
I elected to use a more minimal approach.
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* top.c (open_terminal_stream): Return gdb_file_up.
(new_ui_command): Update.
This changes some functions in source.c to use gdb_file_up.
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* source.c (print_source_lines_base, forward_search_command)
(reverse_search_command): Use gdb_file_up.
This updates fbsd-nat.c to use gdb_file_up. This removes a use of a
cleanup, and helps remove make_cleanup_fclose in a later patch.
I have no way to test this patch.
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* fbsd-nat.c (fbsd_find_memory_regions): Update.
This changes find_and_open_script to return a
gdb::optional<open_script>, where open_script is a new type
encapsulating the two return values. The new type helps avoid
cleanups in the callers.
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* cli/cli-cmds.c (find_and_open_script): Change return type.
Remove "streamp" and "full_path" parameters.
(source_script_with_search): Update.
* auto-load.c (source_script_file): Update.
* cli/cli-cmds.h (find_and_open_script): Change type.
(open_script): New struct.
Yao Qi
Pedro Alves
John Baldwin
Simon Marchi
Tom Tromey
Jiong Wang
H.J. Lu
Maciej W. Rozycki
Leszek Swirski
Ruslan Kabatsayev