diff options
Diffstat (limited to 'discover/platform.c')
| -rw-r--r-- | discover/platform.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/discover/platform.c b/discover/platform.c index 65e9ed4..418b9ea 100644 --- a/discover/platform.c +++ b/discover/platform.c @@ -1,7 +1,11 @@ +#define _GNU_SOURCE + +#include <fcntl.h> #include <string.h> #include <log/log.h> +#include <file/file.h> #include <types/types.h> #include <talloc/talloc.h> @@ -11,6 +15,8 @@ void *platform_ctx; static struct platform *platform; static struct config *config; +static const char *kernel_cmdline_debug = "petitboot.debug"; + static const char *device_type_name(enum device_type type) { switch (type) { @@ -85,6 +91,25 @@ static void dump_config(struct config *config) pb_log(" language: %s\n", config->lang ?: ""); } +static bool config_debug_on_cmdline(void) +{ + char buf[600]; + int rc, fd; + + fd = open("/proc/cmdline", O_RDONLY); + if (fd < 0) + return false; + + rc = read(fd, buf, sizeof(buf)); + close(fd); + + if (rc <= 0) + return false; + + return memmem(buf, rc, kernel_cmdline_debug, + strlen(kernel_cmdline_debug)) != NULL; +} + void config_set_defaults(struct config *config) { config->autoboot_enabled = true; @@ -105,6 +130,8 @@ void config_set_defaults(struct config *config) config->boot_priorities[0].priority = 2; config->boot_priorities[1].type = DEVICE_TYPE_DISK; config->boot_priorities[1].priority = 1; + + config->debug = config_debug_on_cmdline(); } int platform_init(void *ctx) |
