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| author | Youling Tang <tangyouling@loongson.cn> | 2021-02-24 13:29:41 +0800 |
|---|---|---|
| committer | Simon Horman <horms@verge.net.au> | 2021-04-02 11:55:20 +0200 |
| commit | 15ee19f187ecbe43a2fad0834b91b0d70c413852 (patch) | |
| tree | 4d3492c8922cb4029c1933753ad8f414b6b088f1 | |
| parent | b4feb36985d76ef7f4c74a7c51f4843c71c728e8 (diff) | |
mips: Add '--reuse-cmdline' optional parameter support
This patch adds an option "--reuse-cmdline" for people that are lazy
in typing --append="$(cat /proc/cmdline)", which will directly use the
command line of the currently running system.
Signed-off-by: Youling Tang <tangyouling@loongson.cn>
Signed-off-by: Simon Horman <horms@verge.net.au>
| -rw-r--r-- | kexec/arch/mips/include/arch/options.h | 12 | ||||
| -rw-r--r-- | kexec/arch/mips/kexec-mips.c | 4 |
2 files changed, 11 insertions, 5 deletions
diff --git a/kexec/arch/mips/include/arch/options.h b/kexec/arch/mips/include/arch/options.h index 416e224..ba2f346 100644 --- a/kexec/arch/mips/include/arch/options.h +++ b/kexec/arch/mips/include/arch/options.h @@ -1,10 +1,11 @@ #ifndef KEXEC_ARCH_MIPS_OPTIONS_H #define KEXEC_ARCH_MIPS_OPTIONS_H -#define OPT_ARCH_MAX (OPT_MAX+0) -#define OPT_APPEND (OPT_ARCH_MAX+0) -#define OPT_DTB (OPT_ARCH_MAX+1) -#define OPT_RAMDISK (OPT_ARCH_MAX+2) +#define OPT_ARCH_MAX (OPT_MAX+0) +#define OPT_APPEND (OPT_ARCH_MAX+0) +#define OPT_DTB (OPT_ARCH_MAX+1) +#define OPT_RAMDISK (OPT_ARCH_MAX+2) +#define OPT_REUSE_CMDLINE (OPT_ARCH_MAX+3) /* Options relevant to the architecture (excluding loader-specific ones), * in this case none: @@ -14,7 +15,8 @@ {"command-line", 1, 0, OPT_APPEND}, \ {"append", 1, 0, OPT_APPEND}, \ {"dtb", 1, 0, OPT_DTB }, \ - {"initrd", 1, 0, OPT_RAMDISK }, + {"initrd", 1, 0, OPT_RAMDISK }, \ + { "reuse-cmdline", 0, NULL, OPT_REUSE_CMDLINE }, #define KEXEC_ARCH_OPT_STR KEXEC_OPT_STR "" diff --git a/kexec/arch/mips/kexec-mips.c b/kexec/arch/mips/kexec-mips.c index 415c2ed..a9c6a09 100644 --- a/kexec/arch/mips/kexec-mips.c +++ b/kexec/arch/mips/kexec-mips.c @@ -89,6 +89,7 @@ void arch_usage(void) " --append=STRING Set the kernel command line to STRING.\n" " --dtb=FILE Use FILE as the device tree blob.\n" " --initrd=FILE Use FILE as initial ramdisk.\n" + " --reuse-cmdline Use kernel command line from running system.\n" ); } @@ -115,6 +116,9 @@ int arch_process_options(int argc, char **argv) case OPT_APPEND: arch_options.command_line = optarg; break; + case OPT_REUSE_CMDLINE: + arch_options.command_line = get_command_line(); + break; case OPT_DTB: arch_options.dtb_file = optarg; break; |