diff options
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 32 | ||||
| -rw-r--r-- | init/do_mounts_rd.c | 14 | ||||
| -rw-r--r-- | init/init_task.c | 3 | ||||
| -rw-r--r-- | init/initramfs.c | 5 | ||||
| -rw-r--r-- | init/main.c | 4 | ||||
| -rw-r--r-- | init/version-timestamp.c | 5 |
6 files changed, 43 insertions, 20 deletions
diff --git a/init/Kconfig b/init/Kconfig index 836320251219..f3b13463ec26 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 @@ -112,15 +115,26 @@ config TOOLS_SUPPORT_RELR config CC_HAS_ASM_INLINE def_bool $(success,echo 'void foo(void) { asm inline (""); }' | $(CC) -x c - -c -o /dev/null) +config CC_HAS_ASSUME + bool + # clang needs to be at least 19.1.0 since the meaning of the assume + # attribute changed: + # https://github.com/llvm/llvm-project/commit/c44fa3e8a9a44c2e9a575768a3c185354b9f6c17 + default y if CC_IS_CLANG && CLANG_VERSION >= 190100 + # supported since gcc 13.1.0 + # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106654 + default y if CC_IS_GCC && GCC_VERSION >= 130100 + config CC_HAS_NO_PROFILE_FN_ATTR def_bool $(success,echo '__attribute__((no_profile_instrument_function)) int x();' | $(CC) -x c - -c -o /dev/null -Werror) 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 @@ -145,6 +159,9 @@ config RUSTC_HAS_UNNECESSARY_TRANSMUTES 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)) @@ -1346,7 +1363,7 @@ config UTS_NS config TIME_NS bool "TIME namespace" - depends on GENERIC_VDSO_TIME_NS + depends on GENERIC_GETTIMEOFDAY default y help In this namespace boottime and monotonic clocks can be set. @@ -1497,6 +1514,7 @@ 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 @@ -2063,8 +2081,8 @@ config RUST depends on !GCC_PLUGIN_RANDSTRUCT depends on !RANDSTRUCT depends on !DEBUG_INFO_BTF || (PAHOLE_HAS_LANG_EXCLUDE && !LTO) - depends on !CFI_CLANG || HAVE_CFI_ICALL_NORMALIZE_INTEGERS_RUSTC - select CFI_ICALL_NORMALIZE_INTEGERS if CFI_CLANG + depends on !CFI || HAVE_CFI_ICALL_NORMALIZE_INTEGERS_RUSTC + select CFI_ICALL_NORMALIZE_INTEGERS if CFI depends on !CALL_PADDING || RUSTC_VERSION >= 108100 depends on !KASAN_SW_TAGS depends on !(MITIGATION_RETHUNK && KASAN) || RUSTC_VERSION >= 108300 diff --git a/init/do_mounts_rd.c b/init/do_mounts_rd.c index ac021ae6e6fa..19d9f33dcacf 100644 --- a/init/do_mounts_rd.c +++ b/init/do_mounts_rd.c @@ -7,6 +7,7 @@ #include <uapi/linux/cramfs_fs.h> #include <linux/initrd.h> #include <linux/string.h> +#include <linux/string_choices.h> #include <linux/slab.h> #include "do_mounts.h" @@ -186,14 +187,12 @@ static unsigned long nr_blocks(struct file *file) int __init rd_load_image(char *from) { int res = 0; - unsigned long rd_blocks, devblocks; + unsigned long rd_blocks, devblocks, nr_disks; int nblocks, i; char *buf = NULL; unsigned short rotate = 0; decompress_fn decompressor = NULL; -#if !defined(CONFIG_S390) char rotator[4] = { '|' , '/' , '-' , '\\' }; -#endif out_file = filp_open("/dev/ram", O_RDWR, 0); if (IS_ERR(out_file)) @@ -244,8 +243,9 @@ int __init rd_load_image(char *from) goto done; } - printk(KERN_NOTICE "RAMDISK: Loading %dKiB [%ld disk%s] into ram disk... ", - nblocks, ((nblocks-1)/devblocks)+1, nblocks>devblocks ? "s" : ""); + nr_disks = (nblocks - 1) / devblocks + 1; + pr_notice("RAMDISK: Loading %dKiB [%ld disk%s] into ram disk... ", + nblocks, nr_disks, str_plural(nr_disks)); for (i = 0; i < nblocks; i++) { if (i && (i % devblocks == 0)) { pr_cont("done disk #1.\n"); @@ -255,12 +255,10 @@ int __init rd_load_image(char *from) } kernel_read(in_file, buf, BLOCK_SIZE, &in_pos); kernel_write(out_file, buf, BLOCK_SIZE, &out_pos); -#if !defined(CONFIG_S390) - if (!(i % 16)) { + if (!IS_ENABLED(CONFIG_S390) && !(i % 16)) { pr_cont("%c\b", rotator[rotate & 0x3]); rotate++; } -#endif } pr_cont("done.\n"); diff --git a/init/init_task.c b/init/init_task.c index e557f622bd90..a55e2189206f 100644 --- a/init/init_task.c +++ b/init/init_task.c @@ -27,6 +27,9 @@ static struct signal_struct init_signals = { }, .multiprocess = HLIST_HEAD_INIT, .rlim = INIT_RLIMITS, +#ifdef CONFIG_CGROUPS + .cgroup_threadgroup_rwsem = __RWSEM_INITIALIZER(init_signals.cgroup_threadgroup_rwsem), +#endif .cred_guard_mutex = __MUTEX_INITIALIZER(init_signals.cred_guard_mutex), .exec_update_lock = __RWSEM_INITIALIZER(init_signals.exec_update_lock), #ifdef CONFIG_POSIX_TIMERS diff --git a/init/initramfs.c b/init/initramfs.c index 097673b97784..6ddbfb17fb8f 100644 --- a/init/initramfs.c +++ b/init/initramfs.c @@ -19,6 +19,7 @@ #include <linux/init_syscalls.h> #include <linux/umh.h> #include <linux/security.h> +#include <linux/overflow.h> #include "do_mounts.h" #include "initramfs_internal.h" @@ -108,7 +109,7 @@ static char __init *find_link(int major, int minor, int ino, q->minor = minor; q->ino = ino; q->mode = mode; - strcpy(q->name, name); + strscpy(q->name, name); q->next = NULL; *p = q; hardlink_seen = true; @@ -152,7 +153,7 @@ static void __init dir_add(const char *name, size_t nlen, time64_t mtime) { struct dir_entry *de; - de = kmalloc(sizeof(struct dir_entry) + nlen, GFP_KERNEL); + de = kmalloc(struct_size(de, name, nlen), GFP_KERNEL); if (!de) panic_show_mem("can't allocate dir_entry buffer"); INIT_LIST_HEAD(&de->list); diff --git a/init/main.c b/init/main.c index 0ee0ee7b7c2c..fab4f599c035 100644 --- a/init/main.c +++ b/init/main.c @@ -103,6 +103,7 @@ #include <linux/randomize_kstack.h> #include <linux/pidfs.h> #include <linux/ptdump.h> +#include <linux/time_namespace.h> #include <net/net_namespace.h> #include <asm/io.h> @@ -956,6 +957,7 @@ void start_kernel(void) sort_main_extable(); trap_init(); mm_core_init(); + maple_tree_init(); poking_init(); ftrace_init(); @@ -973,7 +975,6 @@ 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 @@ -1072,6 +1073,7 @@ void start_kernel(void) fork_init(); proc_caches_init(); uts_ns_init(); + time_ns_init(); key_init(); security_init(); dbg_late_init(); diff --git a/init/version-timestamp.c b/init/version-timestamp.c index 043cbf80a766..d071835121c2 100644 --- a/init/version-timestamp.c +++ b/init/version-timestamp.c @@ -8,7 +8,8 @@ #include <linux/utsname.h> struct uts_namespace init_uts_ns = { - .ns.count = REFCOUNT_INIT(2), + .ns.ns_type = ns_common_type(&init_uts_ns), + .ns.__ns_ref = REFCOUNT_INIT(2), .name = { .sysname = UTS_SYSNAME, .nodename = UTS_NODENAME, @@ -18,7 +19,7 @@ struct uts_namespace init_uts_ns = { .domainname = UTS_DOMAINNAME, }, .user_ns = &init_user_ns, - .ns.inum = PROC_UTS_INIT_INO, + .ns.inum = ns_init_inum(&init_uts_ns), #ifdef CONFIG_UTS_NS .ns.ops = &utsns_operations, #endif |