forked from Imagelibrary/binutils-gdb
e4a5126ec0
This test exercises musl_link_map_to_tls_module_id() and glibc_link_map_to_tls_module_id(), both of which are in solib-svr4.c. Prior to writing this test, I had only written what is now named 'musl_link_map_to_tls_module_id' and it worked for both GLIBC and MUSL. Once I wrote this new test, tls-dlobj.exp, there were a number of tests which didn't work with GLIBC. This led me to write a GLIBC-specific link map to module id function, i.e, 'glibc_link_map_to_tls_module_id'. It only has one compilation scenario, in which the pthread(s) library is used - as noted in a comment, it became too much of a hassle to try to KFAIL things, though it certainly could have been done in much the same was as was done in gdb.base/multiobj.exp. It didn't seem that important to do so, however, since I believe that the other tests have adequate coverage for different compilation scenarios. Tested-By: Luis Machado <luis.machado@arm.com> Approved-By: Luis Machado <luis.machado@arm.com>
88 lines
2.4 KiB
C
88 lines
2.4 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2024 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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/* This program needs to be compiled with preprocessor symbol set to
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a small integer, e.g. "gcc -DN=1 ..." With N defined, the CONCAT2
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and CONCAT3 macros will construct suitable names for the global
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variables and functions. */
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#define CONCAT2(a,b) CONCAT2_(a,b)
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#define CONCAT2_(a,b) a ## b
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#define CONCAT3(a,b,c) CONCAT3_(a,b,c)
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#define CONCAT3_(a,b,c) a ## b ## c
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/* For N=1, this ends up being...
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__thread int tls_lib1_tbss_1;
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__thread int tls_lib1_tbss_2;
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__thread int tls_lib1_tdata_1 = 196;
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__thread int tls_lib1_tdata_2 = 197; */
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__thread int CONCAT3(tls_lib, N, _tbss_1);
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__thread int CONCAT3(tls_lib, N, _tbss_2);
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__thread int CONCAT3(tls_lib, N, _tdata_1) = CONCAT2(N, 96);
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__thread int CONCAT3(tls_lib, N, _tdata_2) = CONCAT2(N, 97);
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/* Substituting for N, define function:
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int get_tls_libN_var (int which) . */
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int
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CONCAT3(get_tls_lib, N, _var) (int which)
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{
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switch (which)
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{
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case 0:
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return -1;
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case 1:
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return CONCAT3(tls_lib, N, _tbss_1);
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case 2:
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return CONCAT3(tls_lib, N, _tbss_2);
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case 3:
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return CONCAT3(tls_lib, N, _tdata_1);
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case 4:
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return CONCAT3(tls_lib, N, _tdata_2);
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}
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return -1;
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}
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/* Substituting for N, define function:
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void set_tls_libN_var (int which, int val) . */
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void
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CONCAT3(set_tls_lib, N, _var) (int which, int val)
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{
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switch (which)
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{
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case 0:
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break;
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case 1:
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CONCAT3(tls_lib, N, _tbss_1) = val;
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break;
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case 2:
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CONCAT3(tls_lib, N, _tbss_2) = val;
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break;
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case 3:
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CONCAT3(tls_lib, N, _tdata_1) = val;
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break;
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case 4:
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CONCAT3(tls_lib, N, _tdata_2) = val;
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break;
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}
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}
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