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[components/cplusplus]修正cplusplus_system_init在arm V6下的问题

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This commit is contained in:
liruncong 2019-01-12 12:05:55 +08:00
parent e5522d6292
commit d0239b43a0
1 changed files with 12 additions and 15 deletions
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27
components/cplusplus/crt_init.c
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@ -13,10 +13,10 @@
#include <rtthread.h>
#ifdef __CC_ARM
#if defined(__CC_ARM) || defined(__CLANG_ARM)
extern void $Super$$__cpp_initialize__aeabi_(void);
/* we need to change the cpp_initialize order */
void $Sub$$__cpp_initialize__aeabi_(void)
RT_WEAK void $Sub$$__cpp_initialize__aeabi_(void)
{
/* empty */
}
@ -34,19 +34,9 @@ RT_WEAK void *__dso_handle = 0;
#endif
RT_WEAK
int cplusplus_system_init(void)
RT_WEAK int cplusplus_system_init(void)
{
#if defined(__GNUC__) && !defined(__CC_ARM)
typedef void (*pfunc) ();
extern pfunc __ctors_start__[];
extern pfunc __ctors_end__[];
pfunc *p;
for (p = __ctors_start__; p < __ctors_end__; p++)
(*p)();
#elif defined(__CC_ARM)
#if defined(__CC_ARM) || defined(__CLANG_ARM)
/* If there is no SHT$$INIT_ARRAY, calling
* $Super$$__cpp_initialize__aeabi_() will cause fault. At least until Keil5.12
* the problem still exists. So we have to initialize the C++ runtime by ourself.
@ -63,9 +53,16 @@ int cplusplus_system_init(void)
PROC *proc = (PROC*)((const char*)base + *base);
(*proc)();
}
#elif defined(__GNUC__)
typedef void(*pfunc) ();
extern pfunc __ctors_start__[];
extern pfunc __ctors_end__[];
pfunc *p;
for (p = __ctors_start__; p < __ctors_end__; p++)
(*p)();
#endif
return 0;
}
INIT_COMPONENT_EXPORT(cplusplus_system_init);