http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49940
Summary: [4.5/4.6/4.7 regression] Bootstrapping on
x86_64-pc-kfreebsd-gnu fails with
"s-taprop.adb:717:32: "lwp_self" is undefined"
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: ada
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: ludo...@ludovic-brenta.org
Host: x86_64-pc-kfreebsd-gnu
Target: x86_64-pc-kfreebsd-gnu
Build: x86_64-pc-kfreebsd-gnu
(Forwarding http://bugs.debian.org/636291)
In the build logs at
https://buildd.debian.org/status/fetch.php?pkg=gnat-4.6&arch=kfreebsd-amd64&ver=4.6.1-2&stamp=1311435165
we see:
/build/buildd-gnat-4.6_4.6.1-2-kfreebsd-amd64-Jts3n3/gnat-4.6-4.6.1/build/./gcc/xgcc
-B/build/buildd-gnat-4.6_4.6.1-2-kfreebsd-amd64-Jts3n3/gnat-4.6-4.6.1/build/./gcc/
-c -g -O2 -W -Wall -gnatpg s-taprop.adb -o s-taprop.o
s-taprop.adb:717:32: "lwp_self" is undefined
s-taprop.adb:856:10: "pthread_attr_setaffinity_np" is undefined (more
references follow)
I have traced the first error to the following commit:
2009-04-15 Nicolas Roche <ro...@adacore.com>
* adaint.c: Add function __gnat_lwp_self that retrieves the LWP of the
current thread.
* s-osinte-linux.ads: Import the __gnat_lwp_self function as lwp_self
* s-taprop-linux.adb (Enter_Task): Store the LWP in the TCB
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@146097
138bc75d-0d04-0410-961f-82ee72b054a4
The function __gnat_lwp_self exists in adaint.c only #if defined(linux),
so it may not apply to kfreebsd-*. The problem exists because
kfreebsd-* uses s-osinte-kfreebsd-gnu.ads, which does not import the
function, but also uses s-taprop-linux.adb, which does use the function. (Note
that s-taprop-posix.adb also calls lwp_self).
I am not sure what to do:
* introduce a new file s-taprop-kfreebsd-gnu.adb?
* provide the function __gnat_lwp_self also on kfreebsd-* and import it in
s-osinte-kfreebsd-gnu.ads?
--
Ludovic Brenta.
