diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 47107eebc6855372e3bcf78e84b2adb216683666..ade80caafe6b49349cdd86e0a9c0a92d7e4dd837 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -2417,7 +2417,7 @@ config CMDLINE config CMDLINE_OVERRIDE bool "Built-in command line overrides boot loader arguments" - depends on CMDLINE_BOOL + depends on CMDLINE_BOOL && CMDLINE != "" ---help--- Set this option to 'Y' to have the kernel ignore the boot loader command line, and use ONLY the built-in command line. diff --git a/arch/x86/entry/vdso/vdso-layout.lds.S b/arch/x86/entry/vdso/vdso-layout.lds.S index ea7e0155c604ee85b7f741b75b5e367419dda69a..4d152933547d6398c3f12158f191345f060eaee7 100644 --- a/arch/x86/entry/vdso/vdso-layout.lds.S +++ b/arch/x86/entry/vdso/vdso-layout.lds.S @@ -57,6 +57,13 @@ SECTIONS *(.gnu.linkonce.b.*) } :text + /* + * Discard .note.gnu.property sections which are unused and have + * different alignment requirement from vDSO note sections. + */ + /DISCARD/ : { + *(.note.gnu.property) + } .note : { *(.note.*) } :text :note .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S index 5cab3a29adcbc596cbf940f4127aea481852acce..1bf7e312361f4f90d65f57228e6a7e5c1127ddc1 100644 --- a/arch/x86/kernel/vmlinux.lds.S +++ b/arch/x86/kernel/vmlinux.lds.S @@ -21,6 +21,7 @@ #define LOAD_OFFSET __START_KERNEL_map #endif +#define RUNTIME_DISCARD_EXIT #define EMITS_PT_NOTE #define RO_EXCEPTION_TABLE_ALIGN 16 diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index e00f41aa8ec4f1ef955db01e7a9a8d0c1cfdec61..2444336ef04c5a2bf2baa33b92fccf37830ffa1a 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -894,10 +894,17 @@ * section definitions so that such archs put those in earlier section * definitions. */ +#ifdef RUNTIME_DISCARD_EXIT +#define EXIT_DISCARDS +#else +#define EXIT_DISCARDS \ + EXIT_TEXT \ + EXIT_DATA +#endif + #define DISCARDS \ /DISCARD/ : { \ - EXIT_TEXT \ - EXIT_DATA \ + EXIT_DISCARDS \ EXIT_CALL \ *(.discard) \ *(.discard.*) \