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syscall: Export all emitted syscalls, enabling them for extensions

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Linkable loadable extensions can only use syscalls if they are exported
via EXPORT_SYSCALL (or EXPORT_SYMBOL). Instead of enabling used syscalls
one by one, this patch exports all of them automatically via
`gen_syscalls.py`. If CONFIG_LLEXT=n, the section where the exported
symbols live is discarded, so it should be a non-op when llext is not
enabled.

This patch also removes the now redundant EXPORT_SYSCALL macro. Note
that EXPORT_SYMBOL is still useful on different situations (and is
indeed used by the code generated by `gen_syscalls.py`).

Signed-off-by: Ederson de Souza <ederson.desouza@intel.com>
This commit is contained in:
Ederson de Souza 2024-03-15 14:51:39 -07:00 • committed by Fabio Baltieri
commit 67bb6db3f8
4 changed files with 9 additions and 14 deletions
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2
kernel/mutex.c
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@ -196,7 +196,6 @@ int z_impl_k_mutex_lock(struct k_mutex *mutex, k_timeout_t timeout)
return -EAGAIN;
}
EXPORT_SYSCALL(k_mutex_lock);
#ifdef CONFIG_USERSPACE
static inline int z_vrfy_k_mutex_lock(struct k_mutex *mutex,
@ -282,7 +281,6 @@ k_mutex_unlock_return:
return 0;
}
EXPORT_SYSCALL(k_mutex_unlock);
#ifdef CONFIG_USERSPACE
static inline int z_vrfy_k_mutex_unlock(struct k_mutex *mutex)