On Tue, Oct 3, 2017 at 6:43 PM, Moore, Robert <robert.moore@xxxxxxxxx> wrote: > > >> -----Original Message----- >> From: Rafael J. Wysocki [mailto:rjw@xxxxxxxxxxxxx] >> Sent: Tuesday, October 3, 2017 4:32 AM >> To: Moore, Robert <robert.moore@xxxxxxxxx>; Zheng, Lv >> <lv.zheng@xxxxxxxxx> >> Cc: Wu, Fengguang <fengguang.wu@xxxxxxxxx>; kbuild-all@xxxxxx; linux- >> acpi@xxxxxxxxxxxxxxx; devel@xxxxxxxxxx; linux-pm@xxxxxxxxxxxxxxx >> Subject: Re: [pm:bleeding-edge 12/41] utstrsuppt.c:undefined reference >> to `__udivdi3' >> >> On Tuesday, October 3, 2017 4:25:52 AM CEST kbuild test robot wrote: >> > tree: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux- >> pm.git bleeding-edge >> > head: 09b089a247ea7272df93a2116368bf24b656cd65 >> > commit: 05545b3fb6eab35290413211617793bc274e136b [12/41] ACPICA: >> Restructure/cleanup all string-to-integer conversion functions >> > config: i386-defconfig (attached as .config) >> > compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 >> > reproduce: >> > git checkout 05545b3fb6eab35290413211617793bc274e136b >> > # save the attached .config to linux build tree >> > make ARCH=i386 >> > >> > All errors (new ones prefixed by >>): >> > >> > drivers/acpi/acpica/utstrsuppt.o: In function >> `acpi_ut_insert_digit': >> > >> utstrsuppt.c:(.text+0x33): undefined reference to `__udivdi3' >> >> __udivdi3() doesn't work on 32-bit x86 AFAICS. >> >> Can we avoid using it or at least put it under #ifdef somehow? > [Moore, Robert] > > > I take it that __udivdi3 is a 64-bit divide? Practically, yes (AFAICS). > We do have a local divide implementation(s) for things like this. > > However, I don't see a divide in ut_insert_digit; There is a 64-bit divide in ut_strtoul_add_64, however. > > So, there are no issues with 64-bit add, subtract, and multiply? The only problematic one I know of is __udivdi3(). -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
