Christophe Leroy 33e1402435 powerpc: Avoid link stack corruption in misc asm functions ...

bl;mflr is used at several places to get code position.

Use bcl 20,31,+4 instead of bl in order to preserve link stack.

See commit c974809a26a1 ("powerpc/vdso: Avoid link stack corruption
in __get_datapage()") for details.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/c6eabb4fb6c156f75d56dcbcc6f243e5ac0fba42.1629791763.git.christophe.leroy@csgroup.eu

2021-08-25 13:35:47 +10:00

..

core_32.c

…

core_64.c

powerpc/kexec: fix for_each_child.cocci warning

2021-08-10 23:14:55 +10:00

core.c

mm: replace CONFIG_NEED_MULTIPLE_NODES with CONFIG_NUMA

2021-06-29 10:53:55 -07:00

crash.c

powerpc: mark local variables around longjmp as volatile

2021-06-25 14:47:20 +10:00

elf_64.c

powerpc: If kexec_build_elf_info() fails return immediately from elf64_load()

2021-04-26 16:28:26 -05:00

file_load_64.c

powerpc/kexec_file: Use current CPU info while setting up FDT

2021-05-04 22:26:57 +10:00

file_load.c

powerpc: Delete unused function delete_fdt_mem_rsv()

2021-03-08 12:06:30 -07:00

Makefile

powerpc: Move arch independent ima kexec functions to drivers/of/kexec.c

2021-03-08 12:06:29 -07:00

ranges.c

powerpc/kexec_file: Avoid stomping memory used by special regions

2020-07-29 23:47:53 +10:00

relocate_32.S

powerpc: Avoid link stack corruption in misc asm functions

2021-08-25 13:35:47 +10:00