Ping again... This patch fixed the following issue: http://lists.uclibc.org/pipermail/uclibc/2015-May/048966.html
Does anybody suffer this problem ? On 2015/7/31 18:37, Junling Zheng wrote: > Ping... > > On 2015/7/20 21:33, Junling Zheng wrote: >> When debugging a program on ARMv7 with thread-local storage declared using >> "__thread", attempting to print a thread-local variable will result in the >> following message: >> >> Cannot find thread-local storage for Thread <snip> (LWP <snip>), executable >> file /tmp/tls: capability not available >> >> This can be traced back to uclibc libpthread/nptl_db/td_thr_tls_get_addr.c >> which gdb uses to look up the address of the TLS. The function returns >> TD_NOCAPAB due to a mismatch in size between the DTV pointer and the size >> recorded in the db description. The problem lies in >> libpthread/nptl_db/db_info.c >> which initializes the db with the sizeof the union dtv. Instead it should >> be the sizeof a pointer to union dtv. >> >> Fixed the initial size for dtvp to sizeof a pointer, instead of sizeof >> the union. >> >> Refer to: >> http://sourceware.org/ml/libc-alpha/2006-10/msg00088.html >> https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=416b630981788c1f08e746e19765aa0e5c2a1360 >> >> Signed-off-by: Junling Zheng <[email protected]> >> --- >> libpthread/nptl_db/db_info.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/libpthread/nptl_db/db_info.c b/libpthread/nptl_db/db_info.c >> index a57a053..159a027 100644 >> --- a/libpthread/nptl_db/db_info.c >> +++ b/libpthread/nptl_db/db_info.c >> @@ -60,7 +60,7 @@ extern bool __nptl_initial_report_events; >> i.e. at the very end of the area covered by TLS_PRE_TCB_SIZE. */ >> DESC (_thread_db_pthread_dtvp, >> TLS_PRE_TCB_SIZE + offsetof (tcbhead_t, dtv) >> - - (TLS_TCB_SIZE == 0 ? sizeof (tcbhead_t) : 0), union dtv) >> + - (TLS_TCB_SIZE == 0 ? sizeof (tcbhead_t) : 0), union dtv *) >> #endif >> >> >> > > > _______________________________________________ > uClibc mailing list > [email protected] > http://lists.busybox.net/mailman/listinfo/uclibc > > _______________________________________________ uClibc mailing list [email protected] http://lists.busybox.net/mailman/listinfo/uclibc
