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NUVOTON: Fix undefined reference to Reset_Handler_Cascade 

Add a "used" attribute to Reset_Handler_Cascade to fix GCC build with
the "-flto" flag.
This attribute, attached to a function, means that code must be emitted
for the function even if it appears that the function is not referenced.
pull/11874/head
Filip Jagodzinski 2019-11-26 14:34:32 +01:00 committed by Maciej Bocianski
parent 8fcb00cccd
commit 28b1169b7e
1 changed files with 4 additions and 1 deletions
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5
targets/TARGET_NUVOTON/TARGET_M480/device/startup_M480.c
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@ -24,11 +24,13 @@
#if defined(__CC_ARM)
#define WEAK __attribute__ ((weak))
#define ALIAS(f) __attribute__ ((weak, alias(#f)))
#define USED __attribute__ ((used))
#define WEAK_ALIAS_FUNC(FUN, FUN_ALIAS) \
void FUN(void) __attribute__ ((weak, alias(#FUN_ALIAS)));
#elif defined(__ICCARM__)
#define USED __root
//#define STRINGIFY(x) #x
//#define _STRINGIFY(x) STRINGIFY(x)
#define WEAK_ALIAS_FUNC(FUN, FUN_ALIAS) \
@ -42,6 +44,7 @@ _Pragma(_STRINGIFY(_WEAK_ALIAS_FUNC(FUN, FUN_ALIAS)))
#elif defined(__GNUC__)
#define WEAK __attribute__ ((weak))
#define ALIAS(f) __attribute__ ((weak, alias(#f)))
#define USED __attribute__ ((used))
#define WEAK_ALIAS_FUNC(FUN, FUN_ALIAS) \
void FUN(void) __attribute__ ((weak, alias(#FUN_ALIAS)));
@ -77,7 +80,7 @@ void Default_Handler(void);
void Reset_Handler(void);
void Reset_Handler_1(void);
void Reset_Handler_2(void);
void Reset_Handler_Cascade(void *sp, void *pc);
USED void Reset_Handler_Cascade(void *sp, void *pc);
/* Cortex-M4 core handlers */
WEAK_ALIAS_FUNC(NMI_Handler, Default_Handler)