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| author | cracauer <cracauer@FreeBSD.org> | 1999-07-25 13:16:09 +0000 |
|---|---|---|
| committer | cracauer <cracauer@FreeBSD.org> | 1999-07-25 13:16:09 +0000 |
| commit | 36a7b829a04919c4ca14a6e4fe1bf3797c135a82 (patch) | |
| tree | 8748ed38e03651976646062add8e82dac5601f42 /tools | |
| parent | 1c17b991d77a8dc353f1efc23d293b80176cb18b (diff) | |
| download | FreeBSD-src-36a7b829a04919c4ca14a6e4fe1bf3797c135a82.zip FreeBSD-src-36a7b829a04919c4ca14a6e4fe1bf3797c135a82.tar.gz | |
On FPU exceptions, pass a useful error code (one of the FPE_...
macros) to the signal handler, for old-style BSD signal handlers as
the second (int) argument, for SA_SIGINFO signal handlers as
siginfo_t->si_code. This is source-compatible with Solaris, except
that we have no <siginfo.h> (which isn't even mentioned in POSIX
1003.1b).
An rather complete example program is at
http://www3.cons.org/cracauer/freebsd-signal.c
This will be added to the regression tests in src/.
This commit also adds code to disable the (hardware) FPU from
userconfig, so that you can use a software FP emulator on a machine
that has hardware floating point. See LINT.
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions
