diff options
Diffstat (limited to 'target/linux/generic/pending-4.14')
| -rw-r--r-- | target/linux/generic/pending-4.14/220-optimize_inlining.patch | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/target/linux/generic/pending-4.14/220-optimize_inlining.patch b/target/linux/generic/pending-4.14/220-optimize_inlining.patch new file mode 100644 index 0000000000..1929d022f4 --- /dev/null +++ b/target/linux/generic/pending-4.14/220-optimize_inlining.patch @@ -0,0 +1,70 @@ +--- a/arch/x86/Kconfig.debug ++++ b/arch/x86/Kconfig.debug +@@ -284,20 +284,6 @@ config CPA_DEBUG + ---help--- + Do change_page_attr() self-tests every 30 seconds. + +-config OPTIMIZE_INLINING +- bool "Allow gcc to uninline functions marked 'inline'" +- ---help--- +- This option determines if the kernel forces gcc to inline the functions +- developers have marked 'inline'. Doing so takes away freedom from gcc to +- do what it thinks is best, which is desirable for the gcc 3.x series of +- compilers. The gcc 4.x series have a rewritten inlining algorithm and +- enabling this option will generate a smaller kernel there. Hopefully +- this algorithm is so good that allowing gcc 4.x and above to make the +- decision will become the default in the future. Until then this option +- is there to test gcc for this. +- +- If unsure, say N. +- + config DEBUG_ENTRY + bool "Debug low-level entry code" + depends on DEBUG_KERNEL +--- a/lib/Kconfig.debug ++++ b/lib/Kconfig.debug +@@ -137,6 +137,20 @@ endmenu # "printk and dmesg options" + + menu "Compile-time checks and compiler options" + ++config OPTIMIZE_INLINING ++ bool "Allow gcc to uninline functions marked 'inline'" ++ ---help--- ++ This option determines if the kernel forces gcc to inline the functions ++ developers have marked 'inline'. Doing so takes away freedom from gcc to ++ do what it thinks is best, which is desirable for the gcc 3.x series of ++ compilers. The gcc 4.x series have a rewritten inlining algorithm and ++ enabling this option will generate a smaller kernel there. Hopefully ++ this algorithm is so good that allowing gcc 4.x and above to make the ++ decision will become the default in the future. Until then this option ++ is there to test gcc for this. ++ ++ If unsure, say N. ++ + config DEBUG_INFO + bool "Compile the kernel with debug info" + depends on DEBUG_KERNEL && !COMPILE_TEST +--- a/arch/x86/Kconfig ++++ b/arch/x86/Kconfig +@@ -295,9 +295,6 @@ config ZONE_DMA32 + config AUDIT_ARCH + def_bool y if X86_64 + +-config ARCH_SUPPORTS_OPTIMIZED_INLINING +- def_bool y +- + config ARCH_SUPPORTS_DEBUG_PAGEALLOC + def_bool y + +--- a/include/linux/compiler-gcc.h ++++ b/include/linux/compiler-gcc.h +@@ -90,8 +90,7 @@ + * of extern inline functions at link time. + * A lot of inline functions can cause havoc with function tracing. + */ +-#if !defined(CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING) || \ +- !defined(CONFIG_OPTIMIZE_INLINING) || (__GNUC__ < 4) ++#if !defined(CONFIG_OPTIMIZE_INLINING) || (__GNUC__ < 4) + #define inline \ + inline __attribute__((always_inline, unused)) notrace __gnu_inline + #else |