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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2020-09-17 09:44:07 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2020-09-18 10:39:36 +0200 |
| commit | 51f20205ed899c9b867cc0b9dcd5cd71fa16f50e (patch) | |
| tree | 690b656a549311d06e348bc7c7b53ad54ae1797d /common/startup.c | |
| parent | 96028fb0995a9a5ff89ba9913eb9a62bfa248cbc (diff) | |
| download | barebox-51f20205ed899c9b867cc0b9dcd5cd71fa16f50e.tar.gz | |
Add constructor support
Call constructors (gcc-generated initcall-like functions) during barebox
start. Constructors are e.g. used for kasan initialization.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'common/startup.c')
| -rw-r--r-- | common/startup.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/common/startup.c b/common/startup.c index 1c58e41288..6cb0588ae6 100644 --- a/common/startup.c +++ b/common/startup.c @@ -366,6 +366,19 @@ static int run_init(void) return 0; } +typedef void (*ctor_fn_t)(void); + +/* Call all constructor functions linked into the kernel. */ +static void do_ctors(void) +{ +#ifdef CONFIG_CONSTRUCTORS + ctor_fn_t *fn = (ctor_fn_t *) __ctors_start; + + for (; fn < (ctor_fn_t *) __ctors_end; fn++) + (*fn)(); +#endif +} + int (*barebox_main)(void); void __noreturn start_barebox(void) @@ -376,6 +389,8 @@ void __noreturn start_barebox(void) if (!IS_ENABLED(CONFIG_SHELL_NONE) && IS_ENABLED(CONFIG_COMMAND_SUPPORT)) barebox_main = run_init; + do_ctors(); + for (initcall = __barebox_initcalls_start; initcall < __barebox_initcalls_end; initcall++) { pr_debug("initcall-> %pS\n", *initcall); |