Messages in this thread | | | From | Arvind Sankar <> | Date | Sat, 11 Jan 2020 12:32:14 -0500 | Subject | Re: [PATCH] x86/tools/relocs: Add _etext and __end_of_kernel_reserve to S_REL |
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On Sat, Jan 11, 2020 at 12:20:48PM -0500, Arvind Sankar wrote: > I'm running gentoo, but building the kernel using binutils-2.21.1 > compiled from the GNU source tarball, and gcc-4.6.4 again compiled from > source. (It's not something I normally need but I was investigating > something else to see what exactly happens with older toolchains.) > > I used the below to compile the kernel (I added in > readelf/objdump/objcopy just now, and it does build until the relocs > error). The config is x86-64 defconfig with CONFIG_RETPOLINE overridden > to n (since gcc 4.6.4 doesn't support retpoline). > > make O=~/kernel64 -j LD=~/old/bin/ld AS=~/old/bin/as READELF=~/old/bin/readelf \ > OBJDUMP=~/old/bin/objdump OBJCOPY=~/old/bin/objcopy GCC=~/old/bin/gcc ^^ that should be CC >
The built kernel (with this patch) does boot till userspace on qemu, so these old versions aren't producing a completely broken kernel.
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