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linux-stable/arch/parisc
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Helge Deller a6425142f5 parisc: Enable -mlong-calls gcc option with CONFIG_COMPILE_TEST 
commit 778e45d772 upstream

The kernel test robot reported multiple linkage problems like this:

    hppa64-linux-ld: init/main.o(.init.text+0x56c): cannot reach printk
    init/main.o: in function `unknown_bootoption':
    (.init.text+0x56c): relocation truncated to fit: R_PARISC_PCREL22F against
	symbol `printk' defined in .text.unlikely section in kernel/printk/printk.o

There are two ways to solve it:
a) Enable the -mlong-call compiler option (CONFIG_MLONGCALLS),
b) Add long branch stub support in 64-bit linker.

While b) is the long-term solution, this patch works around the issue by
automatically enabling the CONFIG_MLONGCALLS option when
CONFIG_COMPILE_TEST is set, which indicates that a non-production kernel
(e.g. 0-day kernel) is built.

Signed-off-by: Helge Deller <deller@gmx.de>
Reported-by: kernel test robot <lkp@intel.com>
Fixes: 00e35f2b0e ("parisc: Enable -mlong-calls gcc option by default when !CONFIG_MODULES")
Cc: stable@vger.kernel.org # v5.6+
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-11 14:17:21 +01:00
..
boot vmlinux.lds.h: Split ELF_DETAILS from STABS_DEBUG 2020-09-01 09:50:35 +02:00
configs parisc: disable CONFIG_IDE in defconfigs 2020-10-15 08:10:38 +02:00
include local64.h: make <asm/local64.h> mandatory 2021-01-12 20:18:16 +01:00
kernel parisc: Bump 64-bit IRQ stack size to 64 KB 2021-03-07 12:34:13 +01:00
lib parisc: Mark pointers volatile in __xchg8(), __xchg32() and __xchg64() 2020-10-15 08:10:39 +02:00
math-emu Makefile: Convert -Wimplicit-fallthrough=3 to just -Wimplicit-fallthrough for clang 2019-08-10 12:45:37 -07:00
mm treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
oprofile
defpalo.conf
install.sh parisc: Install vmlinuz instead of zImage file 2020-10-15 08:10:39 +02:00
Kconfig parisc: Enable -mlong-calls gcc option with CONFIG_COMPILE_TEST 2021-03-11 14:17:21 +01:00
Kconfig.debug Kconfig: consolidate the "Kernel hacking" menu 2018-08-02 08:06:48 +09:00
Makefile kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables 2020-06-11 20:14:41 +09:00
nm