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https://github.com/espressif/binutils-gdb.git
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fe7b42e584
This removes the basic cleanup code: make_cleanups, do_cleanups, discard_cleanups, and friends. This code is no longer needed, as nothing in gdb makes an ordinary cleanup. Final cleanups are still needed. 2019-03-06 Tom Tromey <tom@tromey.com> * top.c (quit_force): Update. * main.c (captured_command_loop): Update. * common/new-op.c (operator new): Update. * common/common-exceptions.c (struct catcher) <save_cleanup_chain>: Remove member. (exceptions_state_mc_init): Update. (exception_try_scope_entry): Return nullptr. (exception_try_scope_exit, exception_rethrow) (throw_exception_sjlj, throw_exception_cxx): Update. * common/cleanups.h (make_cleanup, make_cleanup_dtor) (all_cleanups, do_cleanups, discard_cleanups) (discard_final_cleanups, save_cleanups, save_final_cleanups) (restore_cleanups, restore_final_cleanups): Don't declare. (do_final_cleanups): Remove parameter. * common/cleanups.c (cleanup_chain, make_cleanup) (make_cleanup_dtor, all_cleanups, do_cleanups) (discard_my_cleanups, discard_cleanups) (discard_final_cleanups, save_my_cleanups, save_cleanups) (save_final_cleanups, restore_my_cleanups, restore_cleanups) (null_cleanup): Remove. (do_final_cleanups): Remove parameter.
97 lines
2.9 KiB
C
97 lines
2.9 KiB
C
/* Replace operator new/new[], for GDB, the GNU debugger.
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Copyright (C) 2016-2019 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* GCC does not understand __has_feature. */
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#if !defined(__has_feature)
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# define __has_feature(x) 0
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#endif
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#if !__has_feature(address_sanitizer) && !defined(__SANITIZE_ADDRESS__)
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#include "common-defs.h"
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#include "host-defs.h"
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#include <new>
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/* Override operator new / operator new[], in order to internal_error
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on allocation failure and thus query the user for abort/core
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dump/continue, just like xmalloc does. We don't do this from a
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new-handler function instead (std::set_new_handler) because we want
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to catch allocation errors from within global constructors too.
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Skip overriding if building with -fsanitize=address though.
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Address sanitizer wants to override operator new/delete too in
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order to detect malloc+delete and new+free mismatches. Our
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versions would mask out ASan's, with the result of losing that
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useful mismatch detection.
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Note that C++ implementations could either have their throw
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versions call the nothrow versions (libstdc++), or the other way
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around (clang/libc++). For that reason, we replace both throw and
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nothrow variants and call malloc directly. */
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void *
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operator new (std::size_t sz)
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{
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/* malloc (0) is unpredictable; avoid it. */
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if (sz == 0)
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sz = 1;
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void *p = malloc (sz); /* ARI: malloc */
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if (p == NULL)
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{
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/* If the user decides to continue debugging, throw a
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gdb_quit_bad_alloc exception instead of a regular QUIT
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gdb_exception. The former extends both std::bad_alloc and a
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QUIT gdb_exception. This is necessary because operator new
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can only ever throw std::bad_alloc, or something that extends
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it. */
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TRY
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{
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malloc_failure (sz);
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}
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CATCH (ex, RETURN_MASK_ALL)
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{
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throw gdb_quit_bad_alloc (ex);
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}
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END_CATCH
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}
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return p;
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}
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void *
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operator new (std::size_t sz, const std::nothrow_t&) noexcept
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{
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/* malloc (0) is unpredictable; avoid it. */
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if (sz == 0)
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sz = 1;
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return malloc (sz); /* ARI: malloc */
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}
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void *
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operator new[] (std::size_t sz)
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{
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return ::operator new (sz);
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}
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void*
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operator new[] (std::size_t sz, const std::nothrow_t&) noexcept
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{
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return ::operator new (sz, std::nothrow);
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}
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#endif
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