diff options
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 12 | ||||
| -rw-r--r-- | init/initramfs.c | 2 | ||||
| -rw-r--r-- | init/main.c | 18 |
3 files changed, 26 insertions, 6 deletions
diff --git a/init/Kconfig b/init/Kconfig index c9446911cf41..0872a5a2e759 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -47,6 +47,10 @@ config CLANG_VERSION int default $(shell,$(srctree)/scripts/clang-version.sh $(CC)) +config LLD_VERSION + int + default $(shell,$(srctree)/scripts/lld-version.sh $(LD)) + config CC_CAN_LINK bool default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m64-flag)) if 64BIT @@ -719,7 +723,7 @@ config LOG_CPU_MAX_BUF_SHIFT with more CPUs. Therefore this value is used only when the sum of contributions is greater than the half of the default kernel ring buffer as defined by LOG_BUF_SHIFT. The default values are set - so that more than 64 CPUs are needed to trigger the allocation. + so that more than 16 CPUs are needed to trigger the allocation. Also this option is ignored when "log_buf_len" kernel parameter is used as it forces an exact (power of two) size of the ring buffer. @@ -1348,6 +1352,12 @@ config LD_DEAD_CODE_DATA_ELIMINATION present. This option is not well tested yet, so use at your own risk. +config LD_ORPHAN_WARN + def_bool y + depends on ARCH_WANT_LD_ORPHAN_WARN + depends on !LD_IS_LLD || LLD_VERSION >= 110000 + depends on $(ld-option,--orphan-handling=warn) + config SYSCTL bool diff --git a/init/initramfs.c b/init/initramfs.c index 1f97c0328a7a..55b74d7e5260 100644 --- a/init/initramfs.c +++ b/init/initramfs.c @@ -535,7 +535,7 @@ extern unsigned long __initramfs_size; #include <linux/initrd.h> #include <linux/kexec.h> -void __weak free_initrd_mem(unsigned long start, unsigned long end) +void __weak __init free_initrd_mem(unsigned long start, unsigned long end) { #ifdef CONFIG_ARCH_KEEP_MEMBLOCK unsigned long aligned_start = ALIGN_DOWN(start, PAGE_SIZE); diff --git a/init/main.c b/init/main.c index 130376ec10ba..32b2a8affafd 100644 --- a/init/main.c +++ b/init/main.c @@ -269,17 +269,27 @@ static void * __init get_boot_config_from_initrd(u32 *_size, u32 *_csum) u32 size, csum; char *data; u32 *hdr; + int i; if (!initrd_end) return NULL; data = (char *)initrd_end - BOOTCONFIG_MAGIC_LEN; - if (memcmp(data, BOOTCONFIG_MAGIC, BOOTCONFIG_MAGIC_LEN)) - return NULL; + /* + * Since Grub may align the size of initrd to 4, we must + * check the preceding 3 bytes as well. + */ + for (i = 0; i < 4; i++) { + if (!memcmp(data, BOOTCONFIG_MAGIC, BOOTCONFIG_MAGIC_LEN)) + goto found; + data--; + } + return NULL; +found: hdr = (u32 *)(data - 8); - size = hdr[0]; - csum = hdr[1]; + size = le32_to_cpu(hdr[0]); + csum = le32_to_cpu(hdr[1]); data = ((void *)hdr) - size; if ((unsigned long)data < initrd_start) { |