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kernel: syscall: pin generated inline functions

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Although they are marked as an inline functions, the compiler
may decide not to inline them which would result in them being
outside the pinned text section. Since these functions are
required for userspace to work correctly, pin them in physical
memory. This also applies to k_is_user_context().

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This commit is contained in:
Daniel Leung 2021-07-22 13:13:17 -07:00 • committed by Christopher Friedt
commit 7ad00b9e47
2 changed files with 6 additions and 0 deletions
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4
scripts/gen_syscalls.py
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@ -80,6 +80,8 @@ syscall_template = """
#include <syscall_list.h>
#include <syscall.h>
#include <linker/sections.h>
#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
#pragma GCC diagnostic push
#endif
@ -174,6 +176,8 @@ def wrapper_defs(func_name, func_type, args):
decl_arglist = ", ".join([" ".join(argrec) for argrec in args]) or "void"
wrap = "extern %s z_impl_%s(%s);\n" % (func_type, func_name, decl_arglist)
wrap += "\n"
wrap += "__pinned_func\n"
wrap += "static inline %s %s(%s)\n" % (func_type, func_name, decl_arglist)
wrap += "{\n"
wrap += "#ifdef CONFIG_USERSPACE\n"