| /* Profiling support code for A/UX |
| Copyright (C) 1996 Free Software Foundation, Inc. |
| |
| This file 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 2, or (at your option) any |
| later version. |
| |
| In addition to the permissions in the GNU General Public License, the |
| Free Software Foundation gives you unlimited permission to link the |
| compiled version of this file into combinations with other programs, |
| and to distribute those combinations without any restriction coming |
| from the use of this file. (The General Public License restrictions |
| do apply in other respects; for example, they cover modification of |
| the file, and distribution when not linked into a combine |
| executable.) |
| |
| This file 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; see the file COPYING. If not, write to |
| the Free Software Foundation, 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| /* This routine is called at the beginning of functions compiled with -p |
| or -pg. The A/UX libraries call mcount%, but gas cannot generate |
| symbols with embedded percent signs. Previous ports of GCC to A/UX |
| have done things like (1) assemble a stub routine with the native |
| assembler, or (2) assemble a stub routine with gas and edit the object |
| file. This solution has the advantage that it can interoperate with |
| the A/UX version and can be used in an eventual port of glibc to A/UX. */ |
| |
| #ifndef __GNUC__ |
| #error This file uses GNU C extensions |
| #endif |
| |
| #include "tconfig.h" |
| #include <mon.h> |
| |
| struct cnt *_countbase; |
| |
| #ifdef FUNCTION_PROFILER_SYMBOL |
| void __mcount() __asm__(FUNCTION_PROFILER_SYMBOL); |
| #endif |
| |
| void __mcount() |
| { |
| register long **pfncnt __asm__("%a0"); |
| register long *fncnt = *pfncnt; |
| |
| if (!fncnt) |
| { |
| struct cnt *newcnt = _countbase++; |
| newcnt->fnpc = (char *)__builtin_return_address(0); |
| *pfncnt = fncnt = &newcnt->mcnt; |
| } |
| *fncnt += 1; |
| } |