diff options
Diffstat (limited to 'init/main.c')
| -rw-r--r-- | init/main.c | 43 |
1 files changed, 9 insertions, 34 deletions
diff --git a/init/main.c b/init/main.c index af50044deed5..ad920fac325c 100644 --- a/init/main.c +++ b/init/main.c @@ -95,7 +95,6 @@ #include <linux/cache.h> #include <linux/rodata_test.h> #include <linux/jump_label.h> -#include <linux/mem_encrypt.h> #include <linux/kcsan.h> #include <linux/init_syscalls.h> #include <linux/stackdepot.h> @@ -103,7 +102,6 @@ #include <net/net_namespace.h> #include <asm/io.h> -#include <asm/bugs.h> #include <asm/setup.h> #include <asm/sections.h> #include <asm/cacheflush.h> @@ -115,10 +113,6 @@ static int kernel_init(void *); -extern void init_IRQ(void); -extern void radix_tree_init(void); -extern void maple_tree_init(void); - /* * Debug helper: via this flag we know that we are in 'early bootup code' * where only the boot processor is running with IRQ disabled. This means @@ -137,7 +131,6 @@ EXPORT_SYMBOL(system_state); #define MAX_INIT_ARGS CONFIG_INIT_ENV_ARG_LIMIT #define MAX_INIT_ENVS CONFIG_INIT_ENV_ARG_LIMIT -extern void time_init(void); /* Default late time init is NULL. archs can override this later. */ void (*__initdata late_time_init)(void); @@ -196,8 +189,6 @@ static const char *argv_init[MAX_INIT_ARGS+2] = { "init", NULL, }; const char *envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, }; static const char *panic_later, *panic_param; -extern const struct obs_kernel_param __setup_start[], __setup_end[]; - static bool __init obsolete_checksetup(char *line) { const struct obs_kernel_param *p; @@ -787,8 +778,6 @@ void __init __weak thread_stack_cache_init(void) } #endif -void __init __weak mem_encrypt_init(void) { } - void __init __weak poking_init(void) { } void __init __weak pgtable_cache_init(void) { } @@ -877,7 +866,8 @@ static void __init print_unknown_bootoptions(void) memblock_free(unknown_options, len); } -asmlinkage __visible void __init __no_sanitize_address __noreturn start_kernel(void) +asmlinkage __visible __init __no_sanitize_address __noreturn __no_stack_protector +void start_kernel(void) { char *command_line; char *after_dashes; @@ -1042,15 +1032,7 @@ asmlinkage __visible void __init __no_sanitize_address __noreturn start_kernel(v sched_clock_init(); calibrate_delay(); - /* - * This needs to be called before any devices perform DMA - * operations that might use the SWIOTLB bounce buffers. It will - * mark the bounce buffers as decrypted so that their usage will - * not cause "plain-text" data to be decrypted when accessed. It - * must be called after late_time_init() so that Hyper-V x86/x64 - * hypercalls work when the SWIOTLB bounce buffers are decrypted. - */ - mem_encrypt_init(); + arch_cpu_finalize_init(); pid_idr_init(); anon_vma_init(); @@ -1078,8 +1060,6 @@ asmlinkage __visible void __init __no_sanitize_address __noreturn start_kernel(v taskstats_init_early(); delayacct_init(); - check_bugs(); - acpi_subsystem_init(); arch_post_acpi_subsys_init(); kcsan_init(); @@ -1087,7 +1067,13 @@ asmlinkage __visible void __init __no_sanitize_address __noreturn start_kernel(v /* Do the rest non-__init'ed, we're now alive */ arch_call_rest_init(); + /* + * Avoid stack canaries in callers of boot_init_stack_canary for gcc-10 + * and older. + */ +#if !__has_attribute(__no_stack_protector__) prevent_tail_call_optimization(); +#endif } /* Call all constructor functions linked into the kernel. */ @@ -1263,17 +1249,6 @@ int __init_or_module do_one_initcall(initcall_t fn) } -extern initcall_entry_t __initcall_start[]; -extern initcall_entry_t __initcall0_start[]; -extern initcall_entry_t __initcall1_start[]; -extern initcall_entry_t __initcall2_start[]; -extern initcall_entry_t __initcall3_start[]; -extern initcall_entry_t __initcall4_start[]; -extern initcall_entry_t __initcall5_start[]; -extern initcall_entry_t __initcall6_start[]; -extern initcall_entry_t __initcall7_start[]; -extern initcall_entry_t __initcall_end[]; - static initcall_entry_t *initcall_levels[] __initdata = { __initcall0_start, __initcall1_start, |