tools/reorder/cygprof.c@97036ab72558 (annotated)
tools/reorder/cygprof.c
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| 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 | } |
