diff options
| author | jdp <jdp@FreeBSD.org> | 1999-12-28 04:38:17 +0000 |
|---|---|---|
| committer | jdp <jdp@FreeBSD.org> | 1999-12-28 04:38:17 +0000 |
| commit | 363b7bd53715dfc3c4b8bc6809fed0a241c34a9a (patch) | |
| tree | 69b2660c2be6f033a411c7b6f07eb8728f078b9d /lib/libc | |
| parent | c96f8e891fe73a35ab2082f6403dd88a66ac0222 (diff) | |
| download | FreeBSD-src-363b7bd53715dfc3c4b8bc6809fed0a241c34a9a.zip FreeBSD-src-363b7bd53715dfc3c4b8bc6809fed0a241c34a9a.tar.gz | |
Work around an assert failure in the dynamic linker's default thread
locking functions. If an application loads a shared object with
dlopen() and the shared object has an init function which requires
lazy binding, then _rtld_bind is called when the thread is already
inside the dynamic linker. This leads to a recursive acquisition
of the lock, which I was not expecting -- hence the assert failure.
This work-around makes the default locking functions handle recursive
locking. It is NOT the correct fix -- that should be implemented
at the generic locking level rather than in the default locking
functions. I will implement the correct fix in a future commit.
Since the dllockinit() interface will likely need to change, warn
about that in both the man page and the header file.
Diffstat (limited to 'lib/libc')
| -rw-r--r-- | lib/libc/gen/dllockinit.3 | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/libc/gen/dllockinit.3 b/lib/libc/gen/dllockinit.3 index facb18b..7bc32b3 100644 --- a/lib/libc/gen/dllockinit.3 +++ b/lib/libc/gen/dllockinit.3 @@ -39,6 +39,10 @@ "void (*lock_release)(void *lock)" "void (*lock_destroy)(void *lock)" \ "void (*context_destroy)(void *context)" .Sh DESCRIPTION +.Bf Sy +This interface is subject to change and should not be used yet. +.Ef +.Pp Threads packages can call .Nm at initialization time to register locking functions for the dynamic |
