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13c3a74afb
The test-case gdb.base/c-linkage-name.exp starts with the following test:
...
gdb_test "print symada__cS" \
" = {a = 100829103}" \
"print symada__cS before partial symtab expansion"
...
However, printing the state of the partial symtabs using maint info psymtabs
shows that in fact the symtab has already been expanded:
...
{ psymtab c-linkage-name.c ((struct partial_symtab *) 0x1e27b40)^M
readin yes^M
...
This is due to set_initial_language, which looks up the main symbol, which
expands the psymtab containing main.
Fix this by moving all but main into a separate source file c-linkage-name-2.c.
Tested on x86_64-linux.
gdb/testsuite/ChangeLog:
2020-02-28 Tom de Vries <tdevries@suse.de>
* gdb.base/c-linkage-name.c (main): Call do_something_other_cu.
(struct wrapper, do_something, mundane/symada__cS): Move ...
* gdb.base/c-linkage-name-2.c: ... here. New source file.
* gdb.base/c-linkage-name.exp: Add verification of psymtab expansion.
Update "print symada__cS before partial symtab expansion" regexp.
Update breakpoint location. Flush symbol cache after expansion.
46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2018-2020 Free Software Foundation, Inc.
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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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struct wrapper
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{
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int a;
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};
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/* Create a global variable whose name in the assembly code
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(aka the "linkage name") is different from the name in
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the source code. The goal is to create a symbol described
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in DWARF using a DW_AT_linkage_name attribute, with a name
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which follows the C++ mangling.
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In this particular case, we chose "symada__cS" which, if it were
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demangled, would translate to "symada (char, signed)". */
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struct wrapper mundane asm ("symada__cS") = {0x060287af};
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void
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do_something (struct wrapper *w)
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{
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w->a++;
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}
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extern void do_something_other_cu (void);
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void
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do_something_other_cu (void)
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{
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do_something (&mundane);
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}
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