d400b8135c
This implements support for relocating code to chosen memory regions via the `zephyr_code_relocate` CMake function for RISC-V SoCs. ARM-specific assumptions that were made by gen_relocate_app.py need to be corrected, in particular not assuming any particular name for the default RAM section (which is 'SRAM' for most ARM pltaforms) and not assuming 32-bit pointers (so the test works on RV64). Signed-off-by: Peter Marheine <pmarheine@chromium.org>
87 lines
3.0 KiB
C
87 lines
3.0 KiB
C
/*
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* Copyright (c) 2012-2014 Wind River Systems, Inc.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/zephyr.h>
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#include <zephyr/sys/printk.h>
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#include <zephyr/ztest.h>
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/*
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* These values will typically be placed in the appropriate sections, but may be moved around
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* by the compiler; for instance var_sram2_data might end up in .rodata if the compiler can prove
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* that it's never modified. To prevent that, we explicitly specify sections.
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*/
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__in_section(data, sram2, var) uint32_t var_sram2_data = 10U;
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__in_section(bss, sram2, var) uint32_t var_sram2_bss;
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K_SEM_DEFINE(test, 0, 1);
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__in_section(rodata, sram2, var) const uint32_t var_sram2_rodata = 100U;
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__in_section(custom_section, static, var) uint32_t var_custom_data = 1U;
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extern void function_in_sram(int32_t value);
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void function_in_custom_section(void);
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#define HAS_SRAM2_DATA_SECTION (CONFIG_ARM)
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ZTEST(code_relocation, test_function_in_sram2)
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{
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extern uintptr_t __sram2_text_start;
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extern uintptr_t __sram2_text_end;
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extern uintptr_t __sram2_data_start;
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extern uintptr_t __sram2_data_end;
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extern uintptr_t __sram2_bss_start;
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extern uintptr_t __sram2_bss_end;
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extern uintptr_t __sram2_rodata_start;
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extern uintptr_t __sram2_rodata_end;
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extern uintptr_t __custom_section_start;
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extern uintptr_t __custom_section_end;
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/* Print values from sram2 */
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printk("Address of var_sram2_data %p\n", &var_sram2_data);
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printk("Address of k_sem_give %p\n", &k_sem_give);
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printk("Address of var_sram2_rodata %p\n", &var_sram2_rodata);
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printk("Address of var_sram2_bss %p\n\n", &var_sram2_bss);
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zassert_between_inclusive((uintptr_t)&var_sram2_data,
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(uintptr_t)&__sram2_data_start,
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(uintptr_t)&__sram2_data_end,
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"var_sram2_data not in sram2 region");
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zassert_between_inclusive((uintptr_t)&k_sem_give,
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(uintptr_t)&__sram2_text_start,
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(uintptr_t)&__sram2_text_end,
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"k_sem_give not in sram_text region");
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zassert_between_inclusive((uintptr_t)&var_sram2_rodata,
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(uintptr_t)&__sram2_rodata_start,
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(uintptr_t)&__sram2_rodata_end,
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"var_sram2_rodata not in sram2_rodata region");
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zassert_between_inclusive((uintptr_t)&var_sram2_bss,
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(uintptr_t)&__sram2_bss_start,
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(uintptr_t)&__sram2_bss_end,
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"var_sram2_bss not in sram2_bss region");
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/* Print values from sram */
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function_in_sram(var_sram2_data);
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/* Print values which were placed using attributes */
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printk("Address of custom_section, func placed using attributes %p\n",
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&function_in_custom_section);
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printk("Address of custom_section data placed using attributes %p\n\n",
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&var_custom_data);
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zassert_between_inclusive((uintptr_t)&function_in_custom_section,
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(uintptr_t)&__custom_section_start,
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(uintptr_t)&__custom_section_end,
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"function_in_custom_section not in custom_section region");
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zassert_between_inclusive((uintptr_t)&var_custom_data,
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(uintptr_t)&__custom_section_start,
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(uintptr_t)&__custom_section_end,
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"var_custom_data not in custom_section region");
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k_sem_give(&test);
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}
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__in_section(custom_section, static, fun) void function_in_custom_section(void)
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{
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}
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