linux/arch
Alexander Popov ddfaf0e43e ARM: vdso: Don't use gcc plugins for building vgettimeofday.c
Don't use gcc plugins for building arch/arm/vdso/vgettimeofday.c to
avoid unneeded instrumentation. As previously discussed[1]:

arm_ssp_per_task_plugin.c
	32-bit ARM only (but likely needs disabling for 32-bit ARM vDSO?)

cyc_complexity_plugin.c
	compile-time reporting only

latent_entropy_plugin.c
	this shouldn't get triggered for the vDSO (no __latent_entropy
	nor __init attributes in vDSO), but perhaps explicitly disabling
	it would be a sensible thing to do, just for robustness?

randomize_layout_plugin.c
	this shouldn't get triggered (again, lacking attributes), but
	should likely be disabled too.

sancov_plugin.c
	This should be tracking the KCOV directly (see
	scripts/Makefile.kcov), which is already disabled here.

structleak_plugin.c
	This should be fine in the vDSO, but there's no security
	boundary here, so it wouldn't be important to KEEP it enabled.

[1] https://lore.kernel.org/lkml/20200610073046.GA15939@willie-the-truck/

Signed-off-by: Alexander Popov <alex.popov@linux.com>
Link: https://lore.kernel.org/r/20200624123330.83226-3-alex.popov@linux.com
Signed-off-by: Kees Cook <keescook@chromium.org>
2020-06-24 07:48:27 -07:00
..
alpha Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
arc treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
arm ARM: vdso: Don't use gcc plugins for building vgettimeofday.c 2020-06-24 07:48:27 -07:00
arm64 Kbuild fixes for v5.8 2020-06-21 12:44:52 -07:00
c6x This time around we have 4 lines of diff in the core framework, removing a 2020-06-10 11:42:19 -07:00
csky maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault 2020-06-17 10:57:41 -07:00
h8300 This time around we have 4 lines of diff in the core framework, removing a 2020-06-10 11:42:19 -07:00
hexagon treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
ia64 Merge branch 'hch' (maccess patches from Christoph Hellwig) 2020-06-18 12:35:51 -07:00
m68k Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
microblaze mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
mips maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault 2020-06-17 10:57:41 -07:00
nds32 maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault 2020-06-17 10:57:41 -07:00
nios2 nios2 update for v5.8-rc1 2020-06-12 11:55:11 -07:00
openrisc OpenRISC updates for 5.8 2020-06-13 10:54:09 -07:00
parisc maccess: make get_kernel_nofault() check for minimal type compatibility 2020-06-18 12:10:37 -07:00
powerpc powerpc fixes for 5.8 #3 2020-06-21 10:02:53 -07:00
riscv RISC-V Fixes for 5.8-rc2 2020-06-20 12:14:29 -07:00
s390 s390 fixes for 5.8-rc2 2020-06-20 12:31:08 -07:00
sh maccess: rename probe_kernel_address to get_kernel_nofault 2020-06-18 11:14:40 -07:00
sparc treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
um maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault 2020-06-17 10:57:41 -07:00
unicore32 This time around we have 4 lines of diff in the core framework, removing a 2020-06-10 11:42:19 -07:00
x86 Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2020-06-20 19:18:27 -07:00
xtensa mmap locking API: convert mmap_sem API comments 2020-06-09 09:39:14 -07:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00