forked from Imagelibrary/binutils-gdb
6a0da68c03
This commit adds 2 simple built-in convenience variables to help users debug an inferior with multiple linker namespaces. The first is $_active_linker_namespaces, which just counts how many namespaces have SOs loaded onto them. The second is $_current_linker_namespace, and it tracks which namespace the current location in the inferior belongs to. This commit also introduces a test ensuring that we track namespaces correctly, and that a user can use the $_current_linker_namespace variable to set a conditional breakpoint, while linespec changes aren't finalized to make it more convenient. Reviewed-By: Eli Zaretskii <eliz@gnu.org> Approved-by: Kevin Buettner <kevinb@redhat.com>
61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2025 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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*/
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#define _GNU_SOURCE
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#include <dlfcn.h>
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#include <stddef.h>
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#include <assert.h>
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#include <unistd.h>
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#include <stdio.h>
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int
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main (void)
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{
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void *handle[4];
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int (*fun) (int);
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Lmid_t lmid;
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int dl;
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handle[0] = dlmopen (LM_ID_NEWLM, DSO_NAME, RTLD_LAZY | RTLD_LOCAL);
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assert (handle[0] != NULL);
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handle[1] = dlmopen (LM_ID_NEWLM, DSO_NAME, RTLD_LAZY | RTLD_LOCAL);
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assert (handle[1] != NULL);
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handle[2] = dlmopen (LM_ID_NEWLM, DSO_NAME, RTLD_LAZY | RTLD_LOCAL);
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assert (handle[2] != NULL);
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for (dl = 2; dl >= 0; dl--)
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{
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fun = dlsym (handle[dl], "inc");
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fun (dl);
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}
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dlclose (handle[0]); /* TAG: first dlclose */
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dlclose (handle[1]); /* TAG: second dlclose */
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dlclose (handle[2]); /* TAG: third dlclose */
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handle[3] = dlmopen (LM_ID_NEWLM, DSO_NAME, RTLD_LAZY | RTLD_LOCAL);
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dlinfo (handle[3], RTLD_DI_LMID, &lmid);
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dlclose (handle[3]); /* TAG: fourth dlclose */
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return 0;
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}
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