| Wichert Akkerman | f75a9ab | 2000-09-01 21:09:08 +0000 | [diff] [blame] | 1 | Here's a preliminary port of strace to FreeBSD. |
| 2 | |
| 3 | Here are some notes about it : |
| 4 | |
| 5 | - This couldn't have been done without the sources of the truss |
| 6 | utility by Sean Eric Fagan, which were of great help. |
| Denys Vlasenko | 402eeb6 | 2009-01-02 13:03:44 +0000 | [diff] [blame] | 7 | |
| Wichert Akkerman | f75a9ab | 2000-09-01 21:09:08 +0000 | [diff] [blame] | 8 | - The tracing mecanism used by FreeBD is a lot like the SVR4 one, so |
| 9 | this port shares a lot of code with the SVR4 port, including the |
| 10 | akward event loop when tracing multiple processes. |
| 11 | |
| 12 | - This works for i386 binaries, although support for alpha processor |
| 13 | should be quite straight forward, but I do not have an alpha to |
| 14 | test it on. |
| 15 | |
| 16 | - Tracing linux binaries is not supported yet, but should be possible |
| 17 | with some work. |
| Denys Vlasenko | 402eeb6 | 2009-01-02 13:03:44 +0000 | [diff] [blame] | 18 | |
| Wichert Akkerman | f75a9ab | 2000-09-01 21:09:08 +0000 | [diff] [blame] | 19 | - There are some issues with following forks, and only a few FreeBSD |
| 20 | specific syscalls are decoded right now. |
| 21 | |
| 22 | - This was tested on FreeBSD 4.0. I believe the tracing interface is |
| 23 | present since at least FreeBSD 3.0, so it "should" work on all |
| 24 | latest releases. I have no idea for other BSDs, though. |
| Denys Vlasenko | 402eeb6 | 2009-01-02 13:03:44 +0000 | [diff] [blame] | 25 | |
| Wichert Akkerman | f75a9ab | 2000-09-01 21:09:08 +0000 | [diff] [blame] | 26 | Gaël Roualland <gael.roualland@iname.com> |