On Tue, 2016-08-09 at 06:37 -0700, Guenter Roeck wrote: > On 08/09/2016 01:11 AM, Luis R. Rodriguez wrote: > > > > Mark, Aurelien, > > > > I've run into a linker (ld) issue caused by the linker table work I've > > been working on [0]. I looked into this and for the life of me, I > > cannot comprehend what the problem is, so was hoping you folks might > > be able to chime in. > > > For reference, the error is > > c6x-elf-ld: drivers/built-in.o: SB-relative relocation but __c6xabi_DSBT_BASE > not defined > c6x-elf-ld: drivers/built-in.o: SB-relative relocation but __c6xabi_DSBT_BASE > not defined
DSBT is a reference to the no-MMU userspace ABI used by c6x. The kernel shouldn't be referencing DSBT base. The -mno-dsbt gcc flag should prevent it. > > Toolchain used is: > > c6x-elf-gcc (GCC) 5.2.0 > GNU ld (GNU Binutils) 2.25 > > Guenter > > > > > A snapshot you can use is available here: > > > > https://git.kernel.org/cgit/linux/kernel/git/mcgrof/linux-next.git/log/?h=20160808-linker-table-v4 > > > > The commit that causes the issue is "firmware: port built-in section > > to linker table": > > > > https://git.kernel.org/cgit/linux/kernel/git/mcgrof/linux-next.git/commit/?h=20160808-linker-table-v4&id=2f4516be8c89b3ca008962798d44b54751e62844 > > > > its the first use of linker tables in the kernel, but I can't figure > > out why this error comes up, nor how to fix it. Any ideas? > > > > [0] lkml.kernel.org/r/1469222687-1600-1-git-send-email-mcg...@kernel.org > > > > Luis > >
