mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-16 08:44:21 +08:00
fb34035e7b
This mirrors x86 commit 9f0cf4adb6
(x86: Use __builtin_object_size() to validate the buffer size for copy_from_user())
Signed-off-by: David S. Miller <davem@davemloft.net>
51 lines
1.2 KiB
Plaintext
51 lines
1.2 KiB
Plaintext
menu "Kernel hacking"
|
|
|
|
config TRACE_IRQFLAGS_SUPPORT
|
|
bool
|
|
default y
|
|
|
|
source "lib/Kconfig.debug"
|
|
|
|
config DEBUG_STACK_USAGE
|
|
bool "Enable stack utilization instrumentation"
|
|
depends on DEBUG_KERNEL
|
|
help
|
|
Enables the display of the minimum amount of free stack which each
|
|
task has ever had available in the sysrq-T and sysrq-P debug output.
|
|
|
|
This option will slow down process creation somewhat.
|
|
|
|
config DEBUG_DCFLUSH
|
|
bool "D-cache flush debugging"
|
|
depends on SPARC64 && DEBUG_KERNEL
|
|
|
|
config STACK_DEBUG
|
|
bool "Stack Overflow Detection Support"
|
|
|
|
config MCOUNT
|
|
bool
|
|
depends on SPARC64
|
|
depends on STACK_DEBUG || FUNCTION_TRACER
|
|
default y
|
|
|
|
config FRAME_POINTER
|
|
bool
|
|
depends on MCOUNT
|
|
default y
|
|
|
|
config DEBUG_STRICT_USER_COPY_CHECKS
|
|
bool "Strict copy size checks"
|
|
depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
|
|
---help---
|
|
Enabling this option turns a certain set of sanity checks for user
|
|
copy operations into compile time failures.
|
|
|
|
The copy_from_user() etc checks are there to help test if there
|
|
are sufficient security checks on the length argument of
|
|
the copy operation, by having gcc prove that the argument is
|
|
within bounds.
|
|
|
|
If unsure, or if you run an older (pre 4.4) gcc, say N.
|
|
|
|
endmenu
|