tools/reorder/cygprof.c@6474c204b198 (annotated)
tools/reorder/cygprof.c
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 2 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 3 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 4 | |
| michael@0 | 5 | /* |
| michael@0 | 6 | |
| michael@0 | 7 | A stub library to LD_PRELOAD against an image that's been compiled |
| michael@0 | 8 | with -finstrument-functions. It dumps the address of the function |
| michael@0 | 9 | that's being entered upon function entry, and the address that's |
| michael@0 | 10 | being returned to on function exit. Addresses are dumped as binary |
| michael@0 | 11 | data to stdout. |
| michael@0 | 12 | |
| michael@0 | 13 | */ |
| michael@0 | 14 | |
| michael@0 | 15 | #include <unistd.h> |
| michael@0 | 16 | |
| michael@0 | 17 | void |
| michael@0 | 18 | __cyg_profile_func_enter(void *this_fn, void *call_site) |
| michael@0 | 19 | { |
| michael@0 | 20 | write(STDOUT_FILENO, &this_fn, sizeof this_fn); |
| michael@0 | 21 | } |
| michael@0 | 22 | |
| michael@0 | 23 | void |
| michael@0 | 24 | __cyg_profile_func_exit(void *this_fn, void *call_site) |
| michael@0 | 25 | { |
| michael@0 | 26 | write(STDOUT_FILENO, &call_site, sizeof call_site); |
| michael@0 | 27 | } |
