https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71721
Bug ID: 71721
Summary: uclinux posix threads
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: minor
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: wbx at openadk dot org
Target Milestone: ---
Hi,
it would be nice if uclinux targets are allowed to enable posix threads.
Together with uClibc-ng/uClibc you can build m68k-nommu toolchain and enable
old Linuxthreads instead of NPTL/TLS. With following change it is possible to
build
boost, which checks if gcc is build with threads enabled.
diff --git a/gcc/config.gcc b/gcc/config.gcc
index 1f75f17..92df4b9 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -827,6 +827,9 @@ case ${target} in
*-*-uclinux*)
extra_options="$extra_options gnu-user.opt"
use_gcc_stdint=wrap
+ case ${enable_threads} in
+ "" | yes | posix) thread_file='posix' ;;
+ esac
tm_defines="$tm_defines DEFAULT_LIBC=LIBC_UCLIBC SINGLE_LIBC"
;;
*-*-rdos*)
Tested with a simple boost application on qemu-system-m68k emulating a coldfire
board without MMU. Other noMMU targets as cortex-m3/cortex-m4 will benefit from
this change, too.
