From: Laurent Vivier Date: Tue, 30 Jun 2015 09:49:54 +0000 (+0200) Subject: linux-user, ppc: mftbl can be used by user application X-Git-Tag: TizenStudio_2.0_p2.3.2~208^2~75^2~29 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7d6b1daedd00b35e50ce87ea835f662b36a23160;p=sdk%2Femulator%2Fqemu.git linux-user, ppc: mftbl can be used by user application In qemu-linux-user, when calling gethostbyname2(), it was hanging in .__res_nmkquery. (gdb) bt 0 in .__res_nmkquery () from /lib64/libresolv.so.2 1 in .__libc_res_nquery () from /lib64/libresolv.so.2 2 in .__libc_res_nsearch () from /lib64/libresolv.so.2 3 in ._nss_dns_gethostbyname3_r () from /lib64/libnss_dns.so.2 4 in ._nss_dns_gethostbyname2_r () from /lib64/libnss_dns.so.2 5 in .gethostbyname2_r () from /lib64/libc.so.6 6 in .gethostbyname2 () from /lib64/libc.so.6 .__res_nmkquery() is: ... do { RANDOM_BITS (randombits); } while ((randombits & 0xffff) == 0); ... <.__res_nmkquery+112>: mftbl r11 <.__res_nmkquery+116>: clrlwi r10,r11,16 <.__res_nmkquery+120>: cmpwi cr7,r10,0 <.__res_nmkquery+124>: beq cr7,<.__res_nmkquery+112> but as mftbl (Move From Time Base Lower) is not implemented, r11 is always 0, so we have an infinite loop. This patch fills the Time Base register with cpu_get_real_ticks(). Signed-off-by: Laurent Vivier Signed-off-by: Alexander Graf --- diff --git a/linux-user/main.c b/linux-user/main.c index c855bcc..6c5c2ef 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -1424,8 +1424,7 @@ void cpu_loop (CPUSPARCState *env) #ifdef TARGET_PPC static inline uint64_t cpu_ppc_get_tb(CPUPPCState *env) { - /* TO FIX */ - return 0; + return cpu_get_real_ticks(); } uint64_t cpu_ppc_load_tbl(CPUPPCState *env)