WSL2-Linux-Kernel/arch/powerpc/lib
Michael Ellerman 053a858efa powerpc: Make create_branch() return errors if the branch target is too large
If you pass a target value to create_branch() which is more than 32MB - 4,
or - 32MB away from the branch site, then it's impossible to create an
immediate branch.  The current code doesn't check, which will lead to us
creating a branch to somewhere else - which is bad.

For code that cares to check we return 0, which is easy to check for, and
for code that doesn't at least we'll be creating an illegal instruction,
rather than a branch to some random address.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-07-01 11:28:19 +10:00
..
Makefile powerpc: Move code patching code into arch/powerpc/lib/code-patching.c 2008-07-01 11:28:18 +10:00
alloc.c [POWERPC] Limit range of __init_ref_ok somewhat 2007-10-03 11:48:44 +10:00
checksum_32.S
checksum_64.S
code-patching.c powerpc: Make create_branch() return errors if the branch target is too large 2008-07-01 11:28:19 +10:00
copy_32.S
copypage_64.S
copyuser_64.S [POWERPC] Use mtocrf instruction in asm when CONFIG_POWER4_ONLY=y 2007-04-13 03:55:13 +10:00
crtsavres.S [POWERPC] Fix -Os kernel builds with newer gcc versions 2008-06-16 15:00:54 +10:00
devres.c [POWERPC] devres: Add devm_ioremap_prot() 2008-05-05 16:47:14 +10:00
div64.S
dma-noncoherent.c [POWERPC] Remove use of 4level-fixup.h for ppc32 2007-05-08 13:40:31 +10:00
locks.c
mem_64.S [POWERPC] Use mtocrf instruction in asm when CONFIG_POWER4_ONLY=y 2007-04-13 03:55:13 +10:00
memcpy_64.S [POWERPC] Use mtocrf instruction in asm when CONFIG_POWER4_ONLY=y 2007-04-13 03:55:13 +10:00
rheap.c [POWERPC] Make rheap safe for spinlocks 2008-04-17 09:50:38 -05:00
sstep.c [POWERPC] Emulate more instructions in software 2007-04-24 21:31:57 +10:00
string.S [POWERPC] Add hand-coded assembly strcmp 2008-04-07 10:03:03 +10:00
usercopy_64.c