diff options
Diffstat (limited to 'init/Kconfig')
| -rw-r--r-- | init/Kconfig | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig index 5230d4879b1c..fa42fb264c9c 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -190,6 +190,9 @@ config RUSTC_HAS_FILE_WITH_NUL config RUSTC_HAS_FILE_AS_C_STR def_bool RUSTC_VERSION >= 109100 +config RUSTC_HAS_SUSPICIOUS_RUNTIME_SYMBOL_DEFINITIONS + def_bool RUSTC_VERSION >= 109800 + config PAHOLE_VERSION int default "$(PAHOLE_VERSION)" @@ -1566,6 +1569,42 @@ config BOOT_CONFIG_EMBED_FILE This bootconfig will be used if there is no initrd or no other bootconfig in the initrd. +config ARCH_SUPPORTS_CMDLINE_FROM_BOOTCONFIG + bool + help + Silent symbol; no C code reads it directly. Architectures + select it once their setup_arch() calls + xbc_prepend_embedded_cmdline() before parse_early_param(). + Its only role is to gate the user-visible + CMDLINE_FROM_BOOTCONFIG option per-arch, the same + ARCH_SUPPORTS_* idiom used by ARCH_SUPPORTS_CFI, etc. + +config CMDLINE_FROM_BOOTCONFIG + bool "Render embedded bootconfig as kernel cmdline at build time" + depends on BOOT_CONFIG_EMBED_FILE != "" + depends on ARCH_SUPPORTS_CMDLINE_FROM_BOOTCONFIG + depends on CMDLINE = "" + default n + help + Render the "kernel" subtree of the embedded bootconfig file into a + flat cmdline string at kernel build time and prepend it to + boot_command_line during early architecture setup. This makes + early_param() handlers (e.g. mem=, earlycon=, loglevel=) see the + values supplied via the embedded bootconfig. + + The runtime bootconfig parser is unaffected, so tree-structured + consumers such as ftrace boot-time tracing keep working. + + Note: when an initrd also carries a bootconfig, its "kernel" + subtree is still parsed at runtime, but the embedded "kernel" + keys remain in boot_command_line for parse_early_param() and + end up later than the initrd keys in saved_command_line, so + parse_args() last-wins favors the embedded values. If you need + initrd to override embedded kernel.* keys, leave this option + off. + + If unsure, say N. + config CMDLINE_LOG_WRAP_IDEAL_LEN int "Length to try to wrap the cmdline when logged at boot" default 1021 |