xtensa: introduce prep_c for xtensa (42396735) · Commits · Wenxi XU / zephyr

arch/xtensa/core/CMakeLists.txt

+1 −0

Original line number	Diff line number	Diff line
		@@ -12,6 +12,7 @@ zephyr_library_sources(
		irq_manage.c
		thread.c
		vector_handlers.c
		prep_c.c
		)

		zephyr_library_sources_ifdef(CONFIG_XTENSA_USE_CORE_CRT1 crt1.S)

+2 −2

Original line number	Diff line number	Diff line
		@@ -22,7 +22,7 @@
		*/

		.global __start
		.type z_cstart, @function
		.type z_prep_c, @function


		/* Macros to abstract away ABI differences */
		@@ -189,6 +189,6 @@ _start:
		#endif /* !XCHAL_HAVE_BOOTLOADER */

		/* Enter C domain, never returns from here */
		CALL z_cstart
		CALL z_prep_c

		.size _start, . - _start

0 → 100644

+22 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (c) 2024 Intel Corporation.
		*
		* SPDX-License-Identifier: Apache-2.0
		*/
		#include <zephyr/kernel.h>
		#include <kernel_internal.h>

		extern FUNC_NORETURN void z_cstart(void);

		/**
		*
		* @brief Prepare to and run C code
		*
		* This routine prepares for the execution of and runs C code.
		*
		*/
		void z_prep_c(void)
		{
		z_cstart();
		CODE_UNREACHABLE;
		}