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https://sourceware.org/git/binutils-gdb.git
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2b8b0dca3b
On PowePC, the test fails on a compile error:
/../binutils-gdb-current/gdb/testsuite/gdb.base/stap-probe.c:107:1: error: expected '=', ',', ';', 'asm' or 'attribute' before 'use_xmm_reg'
107 | use_xmm_reg (int val)
| ^~~~~~~~~~~
Where the source code for stap-probe.c is:
static const char * __attribute__((noinline)) ATTRIBUTE_NOCLONE
use_xmm_reg (int val) <-- line 107
{
...
The issue is the ATTRIBUTE_NOCLONE is not defined as an attribute as
expected. The #define for ATTRIBUTE_NOCLONE can be found in
../lib/attributes.h.
This patch adds the missing include statement for the definition of
ATTRIBUTE_NOCLONE.
The patch has been tested and verified on a Power10 system.
140 lines
3.1 KiB
C
140 lines
3.1 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2012-2022 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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#include "../lib/attributes.h"
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#if USE_SEMAPHORES
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#define _SDT_HAS_SEMAPHORES
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__extension__ unsigned short test_user_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes")));
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#define TEST test_user_semaphore
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__extension__ unsigned short test_two_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes")));
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#define TEST2 test_two_semaphore
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__extension__ unsigned short test_m4_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes")));
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__extension__ unsigned short test_pstr_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes")));
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__extension__ unsigned short test_ps_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes")));
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__extension__ unsigned short test_xmmreg_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes")));
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#else
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int relocation_marker __attribute__ ((unused));
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#define TEST 1
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#define TEST2 1
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#endif
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#include <sys/sdt.h>
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/* We only support SystemTap and only the v3 form. */
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#if _SDT_NOTE_TYPE != 3
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#error "not using SystemTap v3 probes"
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#endif
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struct funcs
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{
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int val;
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const char *(*ps) (int);
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};
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static void
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m1 (void)
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{
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/* m1 and m2 are equivalent, but because of some compiler
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optimizations we have to make each of them unique. This is why
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we have this dummy variable here. */
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volatile int dummy = 0;
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if (TEST2)
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STAP_PROBE1 (test, two, dummy);
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}
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static void
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m2 (void)
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{
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if (TEST2)
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STAP_PROBE (test, two);
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}
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static int
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f (int x)
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{
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if (TEST)
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STAP_PROBE1 (test, user, x);
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return x+5;
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}
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static const char *
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pstr (int val)
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{
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const char *a = "This is a test message.";
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const char *b = "This is another test message.";
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STAP_PROBE3 (test, ps, a, b, val);
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return val == 0 ? a : b;
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}
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#ifdef __SSE2__
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static const char * __attribute__((noinline))
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use_xmm_reg (int val)
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{
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volatile register int val_in_reg asm ("xmm0") = val;
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STAP_PROBE1 (test, xmmreg, val_in_reg);
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return val == 0 ? "xxx" : "yyy";
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}
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#else
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static const char * __attribute__((noinline)) ATTRIBUTE_NOCLONE
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use_xmm_reg (int val)
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{
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/* Nothing. */
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}
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#endif /* __SSE2__ */
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static void
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m4 (const struct funcs *fs, int v)
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{
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STAP_PROBE3 (test, m4, fs->val, fs->ps (v), v);
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}
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int
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main()
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{
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struct funcs fs;
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fs.val = 42;
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fs.ps = pstr;
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f (f (23));
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m1 ();
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m2 ();
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m4 (&fs, 0);
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m4 (&fs, 1);
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use_xmm_reg (0x1234);
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return 0; /* last break here */
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}
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