On 13.02.2018 20:55, Meelis Roos wrote: >> On 2018-02-13 8:55 AM, Meelis Roos wrote: >>> MODPOST 9 modules >>> ERROR: "$$remU" [drivers/net/tun.ko] undefined! >>> make[1]: *** [scripts/Makefile.modpost:92: __modpost] Error 1 >> I believe $$remU comes from the millicode library milli.a. It is bundled with >> compiler. >> Try adding V=1 to the make command so you can see the gcc command for the >> above. > > The command is modpost: > > find .tmp_versions -name '*.mod' | xargs -r grep -h '\.ko$' | sort -u | sed 's/\.ko$/.o/' | scripts/mod/modpost -o ./Module.symvers -S -s -T - > ERROR: "$$remU" [drivers/net/tun.ko] undefined! > > hppa64-linux-objdump --disassemble drivers/net/tun.ko > and > hppa64-linux-nm drivers/net/tun.ko > do not show any sign of the $$remU. > > mroos@a500 ~/linux $ fgrep -r '$$remU' arch/parisc/ > arch/parisc/kernel/parisc_ksyms.c:extern void $$remU(void); > arch/parisc/kernel/parisc_ksyms.c:EXPORT_SYMBOL($$remU); Yes, that's correct. The linux kernel executable should link in libgcc.a, thus include the $$remU symbol (from libgcc.a) and then be able to export it to linux kernel modules if necessary. > It's in /usr/lib/gcc/hppa64-unknown-linux-gnu/5.4.0/libgcc.a Yes, it should be in some libgcc.a file which is linked into the kernel. For me: root@phantom:/usr/lib# hppa64-linux-gnu-objdump -x ./gcc/hppa64-linux-gnu/4.9/libgcc.a | grep remU | grep text 0000000000000000 g .text 0000000000000144 .hidden $$remU > CONFIG_CROSS_COMPILE="hppa64-linux-" - maybe modpost gets this wrong > somehow? It says for you: > ERROR: "$$remU" [drivers/net/tun.ko] undefined! I would be astonished if $$remU hasn't been included in your kernel executable. > mroos@a500 ~/linux $ file scripts/mod/modpost > scripts/mod/modpost: ELF 32-bit MSB executable, PA-RISC, *unknown arch 0xf* version 1 (GNU/Linux), dynamically linked, interpreter /lib/ld.so.1, for GNU/Linux 3.2.0, not stripped > > This is strange, *unknown arch 0xf* ?? This hould be native binary... > yes, all my binaries under /bin have this arch, so my toolchain is > broken is some funny way... That's normal and not related to your $$remU problem. Helge -- To unsubscribe from this list: send the line "unsubscribe linux-parisc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
