Messages in this thread | | | From | YunQiang Su <> | Date | Tue, 7 Apr 2020 18:21:03 +0800 | Subject | Re: BUG: mips: errors when compiling kernel with a large initramfs |
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Xu, Yanfei <yanfei.xu@windriver.com> 于2020年4月7日周二 下午5:58写道: > > Hi, > > > It fails to compile mips kernel with large initramfs (at link time). > > kernel version: 5.6.0 > > > Steps to reproduce: > > 1. git clone mainline kernel > > 2. set ARCH=mips and CROSS_COMPILE=mips-linux-gnu- > > 3. make defconfig > > 4.enable initramfs support and set the path about initramfs source file > > 5.make -j24 > > [KEY] when your initramfs files is too large, and cause > usr/initramfs_data.cpio.gz > > compiled is larger than 225M, you will get the following error. BTW, x86 > doesn't
It is due to the JAL insn can only support <256MiB jump
> > have this issue that I have tested. > > ------------------------------error > messages----------------------------------------- > > CHK include/generated/compile.h > LD vmlinux.o > MODPOST vmlinux.o > MODINFO modules.builtin.modinfo > GEN modules.builtin > LD .tmp_vmlinux.kallsyms1 > kernel/configs.o: In function `ikconfig_cleanup': > /home/wrsadmin/work/linux/kernel/linux-master/kernel/configs.c:72:(.exit.text+0x8): > relocation truncated to fit: R_MIPS_26 against `remove_proc_entry' > fs/binfmt_script.o: In function `exit_script_binfmt': > /home/wrsadmin/work/linux/kernel/linux-master/fs/binfmt_script.c:165:(.exit.text+0x4): > relocation truncated to fit: R_MIPS_26 against `unregister_binfmt' > fs/binfmt_elf.o: In function `exit_elf_binfmt': > /home/wrsadmin/work/linux/kernel/linux-master/fs/binfmt_elf.c:2393:(.exit.text+0x4): > relocation truncated to fit: R_MIPS_26 against `unregister_binfmt' > fs/mbcache.o: In function `mbcache_exit': > /home/wrsadmin/work/linux/kernel/linux-master/fs/mbcache.c:429:(.exit.text+0x4): > relocation truncated to fit: R_MIPS_26 against `kmem_cache_destroy' > fs/nfs_common/grace.o: In function `exit_grace': > /home/wrsadmin/work/linux/kernel/linux-master/fs/nfs_common/grace.c:133:(.exit.text+0x4): > relocation truncated to fit: R_MIPS_26 against `unregister_pernet_subsys' > fs/ext4/super.o: In function `ext4_destroy_lazyinit_thread': > /home/wrsadmin/work/linux/kernel/linux-master/fs/ext4/super.c:3456:(.exit.text+0x24): > relocation truncated to fit: R_MIPS_26 against `kthread_stop' > fs/ext4/super.o: In function `unregister_as_ext2': > /home/wrsadmin/work/linux/kernel/linux-master/fs/ext4/super.c:6126:(.exit.text+0x30): > relocation truncated to fit: R_MIPS_26 against `unregister_filesystem' > fs/ext4/super.o: In function `unregister_as_ext3': > /home/wrsadmin/work/linux/kernel/linux-master/fs/ext4/super.c:6155:(.exit.text+0x3c): > relocation truncated to fit: R_MIPS_26 against `unregister_filesystem' > fs/ext4/super.o: In function `ext4_exit_fs': > /home/wrsadmin/work/linux/kernel/linux-master/fs/ext4/super.c:6261:(.exit.text+0x48): > relocation truncated to fit: R_MIPS_26 against `unregister_filesystem' > fs/ext4/super.o: In function `destroy_inodecache': > /home/wrsadmin/work/linux/kernel/linux-master/fs/ext4/super.c:1218:(.exit.text+0x50): > relocation truncated to fit: R_MIPS_26 against `rcu_barrier' > /home/wrsadmin/work/linux/kernel/linux-master/fs/ext4/super.c:1219:(.exit.text+0x5c): > additional relocation overflows omitted from the output > Makefile:1086: recipe for target 'vmlinux' failed > make[1]: *** [vmlinux] Error 1 > Makefile:1058: recipe for target 'autoksyms_recursive' failed > make: *** [autoksyms_recursive] Error 2 > > > Any comment will be appreciated.
Maybe, you can have a try add `-mlong-calls' to your CFLAGS. I am not sure that it can work. https://gcc.gnu.org/onlinedocs/gcc/MIPS-Options.html
> > Thanks, > > Yanfei >
-- YunQiang Su
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