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bsp,am,integrate-am-apps: reset data and bss section before running

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This commit is contained in:
Zihao Yu 2024-01-14 21:31:06 +08:00
parent 3975a30198
commit 911638c7f5
3 changed files with 40 additions and 4 deletions
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20
bsp/abstract-machine/extra.ld
View file

@ -20,6 +20,26 @@ SECTIONS {
__rt_utest_tc_tab_start = .;
KEEP(*(UtestTcTab))
__rt_utest_tc_tab_end = .;
. = ALIGN(8);
__am_apps_data_start = .;
*(__am_apps.data*)
*(__am_apps.sdata*)
__am_apps_data_end = .;
. = ALIGN(8);
}
}
INSERT BEFORE .data;
SECTIONS {
.bss.extra : {
. = ALIGN(8);
__am_apps_bss_start = .;
*(__am_apps.bss*)
*(__am_apps.sbss*)
*(__am_apps.scommon*)
__am_apps_bss_end = .;
. = ALIGN(8);
}
}
INSERT AFTER .bss;

8
bsp/abstract-machine/integrate-am-apps.py
View file

@ -49,7 +49,7 @@ def integrate(app_dir):
redefine_sym_fp.write(f"__am_{app_name}_{f} {f}\n")
redefine_sym_fp.close()
for obj in objs:
os.system(f"objcopy --prefix-symbols=__am_{app_name}_ {str(obj)}")
os.system(f"objcopy --prefix-symbols=__am_{app_name}_ --prefix-sections=__am_apps {str(obj)}")
os.system(f"objcopy --redefine-syms=redefine_sym.txt {str(obj)}")
am_app_mk_fp.write("SRCS += " + str(obj.relative_to("build/" + ARCH)) + "\n")
os.remove(redefine_sym_file)
@ -65,14 +65,18 @@ read_lib_symbols("klib")
am_app_mk_fp.write("SRCS += build/am-apps.c\n")
am_app_c_fp.write("""#include <am.h>
#include <klib.h>
#include <rtthread.h>
extern Area am_apps_heap;
extern Area am_apps_heap, am_apps_data, am_apps_bss;
extern uint8_t * am_apps_data_content;
static void am_app_start_thread(void *args) {
void (*fn)(const char *mainargs) = ((void **)args)[0];
const char *mainargs = ((void **)args)[1];
fn(mainargs);
}
static void am_app_start_wrapper(const char *app_name, void *app_main, int argc, char *argv[]) {
memcpy(am_apps_data.start, am_apps_data_content, am_apps_data.end - am_apps_data.start);
memset(am_apps_bss.start, 0, am_apps_bss.end - am_apps_bss.start);
heap = am_apps_heap;
void *args[2] = { app_main, (argc >= 2 ? argv[1] : "") };
rt_thread_t tid = rt_thread_create(app_name, am_app_start_thread, args, 0x4000, 0, 20);

16
bsp/abstract-machine/src/init.c
View file

@ -1,12 +1,14 @@
#include <am.h>
#include <rtthread.h>
#include <klib.h>
#include <klib-macros.h>
#define AM_APPS_HEAP_SIZE 0x2000000
#define RT_HW_HEAP_BEGIN heap.start
#define RT_HW_HEAP_END heap.end
Area am_apps_heap;
Area am_apps_heap = {}, am_apps_data = {}, am_apps_bss = {};
uint8_t * am_apps_data_content = NULL;
void rt_hw_board_init() {
int rt_hw_uart_init(void);
@ -20,7 +22,17 @@ void rt_hw_board_init() {
uint32_t size = AM_APPS_HEAP_SIZE;
void *p = NULL;
for (; p == NULL && size != 0; size /= 2) { p = rt_malloc(size); }
am_apps_heap = (Area) { .start = p, .end = p + size };
am_apps_heap = RANGE(p, p + size);
extern char __am_apps_data_start, __am_apps_data_end;
extern char __am_apps_bss_start, __am_apps_bss_end;
am_apps_data = RANGE(&__am_apps_data_start, &__am_apps_data_end);
am_apps_bss = RANGE(&__am_apps_bss_start, &__am_apps_bss_end);
uint32_t data_size = am_apps_data.end - am_apps_data.start;
am_apps_data_content = rt_malloc(data_size);
assert(am_apps_data_content != NULL);
memcpy(am_apps_data_content, am_apps_data.start, data_size);
#ifdef RT_USING_CONSOLE
/* set console device */