/* This testcase is part of GDB, the GNU debugger. Copyright 2012-2023 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ #include "attributes.h" #if USE_SEMAPHORES #define _SDT_HAS_SEMAPHORES __extension__ unsigned short test_user_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes"))); #define TEST test_user_semaphore __extension__ unsigned short test_two_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes"))); #define TEST2 test_two_semaphore __extension__ unsigned short test_m4_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes"))); __extension__ unsigned short test_pstr_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes"))); __extension__ unsigned short test_ps_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes"))); __extension__ unsigned short test_xmmreg_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes"))); #else int relocation_marker __attribute__ ((unused)); #define TEST 1 #define TEST2 1 #endif #include /* We only support SystemTap and only the v3 form. */ #if _SDT_NOTE_TYPE != 3 #error "not using SystemTap v3 probes" #endif struct funcs { int val; const char *(*ps) (int); }; static void m1 (void) { /* m1 and m2 are equivalent, but because of some compiler optimizations we have to make each of them unique. This is why we have this dummy variable here. */ volatile int dummy = 0; if (TEST2) STAP_PROBE1 (test, two, dummy); } static void m2 (void) { if (TEST2) STAP_PROBE (test, two); } static int f (int x) { if (TEST) STAP_PROBE1 (test, user, x); return x+5; } static const char * pstr (int val) { const char *a = "This is a test message."; const char *b = "This is another test message."; STAP_PROBE3 (test, ps, a, b, val); return val == 0 ? a : b; } #ifdef __SSE2__ static const char * __attribute__((noinline)) use_xmm_reg (int val) { volatile register int val_in_reg asm ("xmm0") = val; STAP_PROBE1 (test, xmmreg, val_in_reg); return val == 0 ? "xxx" : "yyy"; } #else static const char * __attribute__((noinline)) ATTRIBUTE_NOCLONE use_xmm_reg (int val) { /* Nothing. */ } #endif /* __SSE2__ */ static void m4 (const struct funcs *fs, int v) { STAP_PROBE3 (test, m4, fs->val, fs->ps (v), v); } int main() { struct funcs fs; fs.val = 42; fs.ps = pstr; f (f (23)); m1 (); m2 (); m4 (&fs, 0); m4 (&fs, 1); use_xmm_reg (0x1234); return 0; /* last break here */ }