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llext: add movt/movw relocation test

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Arch arm relocatate test covers:
R_ARM_ABS32: all tests
decode_thm_jumps -> relative jmp extension
decode_thm_movs -> movwmovt extension

Signed-off-by: Cedric Lescop <cedric.lescop@se.com>
This commit is contained in:
Cedric Lescop 2024-04-10 11:07:07 +02:00 • committed by Anas Nashif
commit b573f447f0
2 changed files with 59 additions and 20 deletions
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12
tests/subsys/llext/simple/CMakeLists.txt
View file

@ -16,8 +16,16 @@ target_include_directories(app PRIVATE
)
if(NOT LOADER_BUILD_ONLY)
# generate extension targets foreach extension given by name
foreach(ext_name hello_world logging relative_jump object syscalls threads_kernel_objects)
set(ext_names hello_world logging relative_jump object syscalls threads_kernel_objects)
if(CONFIG_ARM)
if(NOT CONFIG_CPU_CORTEX_M0 AND NOT CONFIG_CPU_CORTEX_M0PLUS AND NOT CONFIG_CPU_CORTEX_M1)
list(APPEND ext_names movwmovt)
endif()
endif()
# generate extension targets foreach extension given by 'ext_names'
foreach(ext_name ${ext_names})
set(ext_src ${PROJECT_SOURCE_DIR}/src/${ext_name}_ext.c)
set(ext_bin ${ZEPHYR_BINARY_DIR}/${ext_name}.llext)
set(ext_inc ${ZEPHYR_BINARY_DIR}/include/generated/${ext_name}.inc)

31
tests/subsys/llext/simple/src/movwmovt_ext.c Normal file
View file

@ -0,0 +1,31 @@
/*
* Copyright (c) 2024 Schneider Electric.
*
* SPDX-License-Identifier: Apache-2.0
*/
/*
* This test is designed to test MOV.W and MOV.T instructions on ARM architectures.
* (except Cortex-M0, M0+ and M1, that don't support them)
*/
#include <stdint.h>
#include <zephyr/llext/symbol.h>
#include <zephyr/sys/printk.h>
static void test_func(void)
{
printk("%s\n", __func__);
}
void test_entry(void)
{
test_func();
printk("test movwmovt\n");
__asm volatile ("movw r0, #:lower16:test_func");
__asm volatile ("movt r0, #:upper16:test_func");
__asm volatile ("blx r0");
}
LL_EXTENSION_SYMBOL(test_entry);