ca26ddfa99
Drop gdb-6.3-test-pie-20050107.patch. Drop gdb-6.3-test-self-20050110.patch. Drop gdb-6.5-bz218379-ppc-solib-trampoline-test.patch. Drop gdb-6.6-buildid-locate-core-as-arg.patch. Drop gdb-6.8-quit-never-aborts.patch. Drop gdb-archer-pie-addons-keep-disabled.patch. Drop gdb-archer-pie-addons.patch. Drop gdb-archer-vla-tests.patch. Drop gdb-archer.patch. Drop gdb-attach-fail-reasons-5of5.patch. Drop gdb-btrobust.patch. Drop gdb-bz1219747-attach-kills.patch. Drop gdb-bz533176-fortran-omp-step.patch. Drop gdb-dts-rhel6-python-compat.patch. Drop gdb-gnat-dwarf-crash-3of3.patch. Drop gdb-jit-reader-multilib.patch. Drop gdb-moribund-utrace-workaround.patch. Drop gdb-rhbz1930528-fix-gnulib-build-error.patch. Drop gdb-rhbz1932645-aarch64-ptrace-header-order.patch. Drop gdb-vla-intel-fix-print-char-array.patch. Drop gdb-vla-intel-fortran-strides.patch. Drop gdb-vla-intel-stringbt-fix.patch. Drop gdb-vla-intel-tests.patch. Drop process_psymtab_comp_unit-type-unit.patch. Drop gdb-testsuite-readline63-sigint-revert.patch. Drop gdb-config.patch. Add following upstream patches for Fortran stride / slice support: gdb-rhbz1964167-convert-enum-range_type.patch gdb-rhbz1964167-fortran-array-slices-at-prompt.patch gdb-rhbz1964167-fortran-array-strides-in-expressions.patch gdb-rhbz1964167-fortran-clean-up-array-expression-evaluation.patch gdb-rhbz1964167-fortran-range_type-to-range_flag.patch gdb-rhbz1964167-fortran-whitespace_array.patch gdb-rhbz1964167-move-fortran-expr-handling.patch
65 lines
2.7 KiB
Diff
65 lines
2.7 KiB
Diff
From FEDORA_PATCHES Mon Sep 17 00:00:00 2001
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From: Kevin Buettner <kevinb@redhat.com>
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Date: Wed, 17 Feb 2021 17:58:54 -0700
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Subject: gdb-rhbz1912985-libstdc++-assert.patch
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;; Backport fix for libstdc++ assert when performing tab completion
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;; (RH BZ 1912985).
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Fix completion related libstdc++ assert when using -D_GLIBCXX_DEBUG
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This commit fixes a libstdc++ assertion failure encountered when
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running gdb.base/completion.exp. In order to see this problem,
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GDB must be built with the follow CFLAGS and CXXFLAGS as part
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of the configure line:
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CFLAGS='-D_GLIBCXX_DEBUG' CXXFLAGS='-D_GLIBCXX_DEBUG'
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(Also, this problem was encountered using Fedora rawhide. It might
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not be reproducible in Fedora versions prior to Fedora 34.)
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Using the gdb.base/completion.exp test program, the problem can be
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observed as follows:
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[kev@rawhide-1 gdb]$ ./gdb -q testsuite/outputs/gdb.base/completion/completion
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Reading symbols from testsuite/outputs/gdb.base/completion/completion...
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(gdb) start
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Temporary breakpoint 1 at 0x401179: file ../../worktree-master/gdb/testsuite/gdb.base/break.c, line 43.
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Starting program: testsuite/outputs/gdb.base/completion/completion
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Temporary breakpoint 1, main (argc=1, argv=0x7fffffffd718, envp=0x7fffffffd728) at ../../worktree-master/gdb/testsuite/gdb.base/break.c:43
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43 if (argc == 12345) { /* an unlikely value < 2^16, in case uninited */ /* set breakpoint 6 here */
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(gdb) p <TAB>/usr/include/c++/11/string_view:211: constexpr const value_type& std::basic_string_view<_CharT, _Traits>::operator[](std::basic_string_view<_CharT, _Traits>::size_type) const [with _CharT = char; _Traits = std::char_traits<char>; std::basic_string_view<_CharT, _Traits>::const_reference = const char&; std::basic_string_view<_CharT, _Traits>::size_type = long unsigned int]: Assertion '__pos < this->_M_len' failed.
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Aborted (core dumped)
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(Note that I added "<TAB>" to make it clear where the tab key was
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pressed.)
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gdb/ChangeLog:
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* ada-lang.c (ada_fold_name): Check for non-empty string prior
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to accessing it.
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(ada_lookup_name_info): Likewise.
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diff --git a/gdb/ada-lang.c b/gdb/ada-lang.c
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--- a/gdb/ada-lang.c
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+++ b/gdb/ada-lang.c
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@@ -997,7 +997,7 @@ ada_fold_name (gdb::string_view name)
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int len = name.size ();
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GROW_VECT (fold_buffer, fold_buffer_size, len + 1);
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- if (name[0] == '\'')
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+ if (!name.empty () && name[0] == '\'')
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{
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strncpy (fold_buffer, name.data () + 1, len - 2);
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fold_buffer[len - 2] = '\000';
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@@ -13597,7 +13597,7 @@ ada_lookup_name_info::ada_lookup_name_info (const lookup_name_info &lookup_name)
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{
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gdb::string_view user_name = lookup_name.name ();
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- if (user_name[0] == '<')
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+ if (!user_name.empty () && user_name[0] == '<')
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{
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if (user_name.back () == '>')
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m_encoded_name
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