diff options
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 63 | ||||
| -rw-r--r-- | init/main.c | 13 |
2 files changed, 54 insertions, 22 deletions
diff --git a/init/Kconfig b/init/Kconfig index 2e15b4a8478e..87c868f86a06 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -99,7 +99,10 @@ config GCC_ASM_GOTO_OUTPUT_BROKEN config CC_HAS_ASM_GOTO_OUTPUT def_bool y depends on !GCC_ASM_GOTO_OUTPUT_BROKEN + # Detect basic support depends on $(success,echo 'int foo(int x) { asm goto ("": "=r"(x) ::: bar); return x; bar: return 0; }' | $(CC) -x c - -c -o /dev/null) + # Detect clang (< v17) scoped label issues + depends on $(success,echo 'void b(void **);void* c(void);int f(void){{asm goto(""::::l0);return 0;l0:return 1;}void *x __attribute__((cleanup(b)))=c();{asm goto(""::::l1);return 2;l1:return 3;}}' | $(CC) -x c - -c -o /dev/null) config CC_HAS_ASM_GOTO_TIED_OUTPUT depends on CC_HAS_ASM_GOTO_OUTPUT @@ -117,10 +120,11 @@ config CC_HAS_NO_PROFILE_FN_ATTR config CC_HAS_COUNTED_BY bool - # clang needs to be at least 19.1.3 to avoid __bdos miscalculations - # https://github.com/llvm/llvm-project/pull/110497 - # https://github.com/llvm/llvm-project/pull/112636 - default y if CC_IS_CLANG && CLANG_VERSION >= 190103 + # clang needs to be at least 20.1.0 to avoid potential crashes + # when building structures that contain __counted_by + # https://github.com/ClangBuiltLinux/linux/issues/2114 + # https://github.com/llvm/llvm-project/commit/160fb1121cdf703c3ef5e61fb26c5659eb581489 + default y if CC_IS_CLANG && CLANG_VERSION >= 200100 # supported since gcc 15.1.0 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108896 default y if CC_IS_GCC && GCC_VERSION >= 150100 @@ -142,6 +146,12 @@ config RUSTC_HAS_SPAN_FILE config RUSTC_HAS_UNNECESSARY_TRANSMUTES def_bool RUSTC_VERSION >= 108800 +config RUSTC_HAS_FILE_WITH_NUL + def_bool RUSTC_VERSION >= 108900 + +config RUSTC_HAS_FILE_AS_C_STR + def_bool RUSTC_VERSION >= 109100 + config PAHOLE_VERSION int default $(shell,$(srctree)/scripts/pahole-version.sh $(PAHOLE)) @@ -169,6 +179,10 @@ menu "General setup" config BROKEN bool + help + This option allows you to choose whether you want to try to + compile (and fix) old drivers that haven't been updated to + new infrastructure. config BROKEN_ON_SMP bool @@ -875,6 +889,18 @@ config UCLAMP_BUCKETS_COUNT If in doubt, use the default value. +config SCHED_PROXY_EXEC + bool "Proxy Execution" + # Avoid some build failures w/ PREEMPT_RT until it can be fixed + depends on !PREEMPT_RT + # Need to investigate how to inform sched_ext of split contexts + depends on !SCHED_CLASS_EXT + # Not particularly useful until we get to multi-rq proxying + depends on EXPERT + help + This option enables proxy execution, a mechanism for mutex-owning + tasks to inherit the scheduling context of higher priority waiters. + endmenu # @@ -992,6 +1018,7 @@ config MEMCG select PAGE_COUNTER select EVENTFD select SLAB_OBJ_EXT + select VM_EVENT_COUNTERS help Provides control over the memory footprint of tasks in a cgroup. @@ -1065,6 +1092,9 @@ if CGROUP_SCHED config GROUP_SCHED_WEIGHT def_bool n +config GROUP_SCHED_BANDWIDTH + def_bool n + config FAIR_GROUP_SCHED bool "Group scheduling for SCHED_OTHER" depends on CGROUP_SCHED @@ -1074,6 +1104,7 @@ config FAIR_GROUP_SCHED config CFS_BANDWIDTH bool "CPU bandwidth provisioning for FAIR_GROUP_SCHED" depends on FAIR_GROUP_SCHED + select GROUP_SCHED_BANDWIDTH default n help This option allows users to define CPU bandwidth rates (limits) for @@ -1108,6 +1139,7 @@ config EXT_GROUP_SCHED bool depends on SCHED_CLASS_EXT && CGROUP_SCHED select GROUP_SCHED_WEIGHT + select GROUP_SCHED_BANDWIDTH default y endif #CGROUP_SCHED @@ -1472,6 +1504,7 @@ config BOOT_CONFIG_EMBED_FILE config INITRAMFS_PRESERVE_MTIME bool "Preserve cpio archive mtimes in initramfs" + depends on BLK_DEV_INITRD default y help Each entry in an initramfs cpio archive carries an mtime value. When @@ -1716,13 +1749,9 @@ config FUTEX_PI depends on FUTEX && RT_MUTEXES default y -# -# marked broken for performance reasons; gives us one more cycle to sort things out. -# config FUTEX_PRIVATE_HASH bool depends on FUTEX && !BASE_SMALL && MMU - depends on BROKEN default y config FUTEX_MPOL @@ -1805,6 +1834,17 @@ config GCOV_PROFILE_URING the io_uring subsystem, hence this should only be enabled for specific test purposes. +config IO_URING_MOCK_FILE + tristate "Enable io_uring mock files (Experimental)" if EXPERT + default n + depends on IO_URING + help + Enable mock files for io_uring subststem testing. The ABI might + still change, so it's still experimental and should only be enabled + for specific test purposes. + + If unsure, say N. + config ADVISE_SYSCALLS bool "Enable madvise/fadvise syscalls" if EXPERT default y @@ -1870,13 +1910,6 @@ config CACHESTAT_SYSCALL If unsure say Y here. -config PC104 - bool "PC/104 support" if EXPERT - help - Expose PC/104 form factor device drivers and options available for - selection and configuration. Enable this option if your target - machine has a PC/104 bus. - config KALLSYMS bool "Load all symbols for debugging/ksymoops" if EXPERT default y diff --git a/init/main.c b/init/main.c index 225a58279acd..5753e9539ae6 100644 --- a/init/main.c +++ b/init/main.c @@ -53,7 +53,6 @@ #include <linux/cpuset.h> #include <linux/memcontrol.h> #include <linux/cgroup.h> -#include <linux/efi.h> #include <linux/tick.h> #include <linux/sched/isolation.h> #include <linux/interrupt.h> @@ -957,6 +956,7 @@ void start_kernel(void) sort_main_extable(); trap_init(); mm_core_init(); + maple_tree_init(); poking_init(); ftrace_init(); @@ -974,7 +974,6 @@ void start_kernel(void) "Interrupts were enabled *very* early, fixing it\n")) local_irq_disable(); radix_tree_init(); - maple_tree_init(); /* * Set up housekeeping before setting up workqueues to allow the unbound @@ -1068,10 +1067,6 @@ void start_kernel(void) pid_idr_init(); anon_vma_init(); -#ifdef CONFIG_X86 - if (efi_enabled(EFI_RUNTIME_SERVICES)) - efi_enter_virtual_mode(); -#endif thread_stack_cache_init(); cred_init(); fork_init(); @@ -1592,7 +1587,11 @@ static noinline void __init kernel_init_freeable(void) * check if there is an early userspace init. If yes, let it do all * the work */ - if (init_eaccess(ramdisk_execute_command) != 0) { + int ramdisk_command_access; + ramdisk_command_access = init_eaccess(ramdisk_execute_command); + if (ramdisk_command_access != 0) { + pr_warn("check access for rdinit=%s failed: %i, ignoring\n", + ramdisk_execute_command, ramdisk_command_access); ramdisk_execute_command = NULL; prepare_namespace(); } |