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STM32F1xx : GCC_ARM remove zero bss done at startup. 

Zero bss is done after the call to _start.
pull/3074/head
Michel Jaouen 2016-10-17 17:59:42 +02:00
parent 702f64a6f2
commit b225a5ca97
3 changed files with 1 additions and 45 deletions
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15
targets/TARGET_STM/TARGET_STM32F1/TARGET_BLUEPILL_F103C8/device/TOOLCHAIN_GCC_ARM/startup_stm32f103xb.S
View File

@ -58,10 +58,6 @@ defined in linker script */
.word _sdata .word _sdata
/* end address for the .data section. defined in linker script */ /* end address for the .data section. defined in linker script */
.word _edata .word _edata
/* start address for the .bss section. defined in linker script */
.word _sbss
/* end address for the .bss section. defined in linker script */
.word _ebss
.equ BootRAM, 0xF108F85F .equ BootRAM, 0xF108F85F
/** /**
@ -96,17 +92,6 @@ LoopCopyDataInit:
adds r2, r0, r1 adds r2, r0, r1
cmp r2, r3 cmp r2, r3
bcc CopyDataInit bcc CopyDataInit
ldr r2, =_sbss
b LoopFillZerobss
/* Zero fill the bss segment. */
FillZerobss:
movs r3, #0
str r3, [r2], #4
LoopFillZerobss:
ldr r3, = _ebss
cmp r2, r3
bcc FillZerobss
/* Call the clock system intitialization function.*/ /* Call the clock system intitialization function.*/
bl SystemInit bl SystemInit

16
targets/TARGET_STM/TARGET_STM32F1/TARGET_DISCO_F100RB/device/TOOLCHAIN_GCC_ARM/startup_stm32f100xb.S
View File

@ -58,10 +58,7 @@ defined in linker script */
.word _sdata .word _sdata
/* end address for the .data section. defined in linker script */ /* end address for the .data section. defined in linker script */
.word _edata .word _edata
/* start address for the .bss section. defined in linker script */
.word _sbss
/* end address for the .bss section. defined in linker script */
.word _ebss
.equ BootRAM, 0xF108F85F .equ BootRAM, 0xF108F85F
/** /**
@ -94,17 +91,6 @@ LoopCopyDataInit:
adds r2, r0, r1 adds r2, r0, r1
cmp r2, r3 cmp r2, r3
bcc CopyDataInit bcc CopyDataInit
ldr r2, =_sbss
b LoopFillZerobss
/* Zero fill the bss segment. */
FillZerobss:
movs r3, #0
str r3, [r2], #4
LoopFillZerobss:
ldr r3, = _ebss
cmp r2, r3
bcc FillZerobss
/* Call the clock system intitialization function.*/ /* Call the clock system intitialization function.*/
bl SystemInit bl SystemInit

15
targets/TARGET_STM/TARGET_STM32F1/TARGET_NUCLEO_F103RB/device/TOOLCHAIN_GCC_ARM/startup_stm32f103xb.S
View File

@ -58,10 +58,6 @@ defined in linker script */
.word _sdata .word _sdata
/* end address for the .data section. defined in linker script */ /* end address for the .data section. defined in linker script */
.word _edata .word _edata
/* start address for the .bss section. defined in linker script */
.word _sbss
/* end address for the .bss section. defined in linker script */
.word _ebss
.equ BootRAM, 0xF108F85F .equ BootRAM, 0xF108F85F
/** /**
@ -96,17 +92,6 @@ LoopCopyDataInit:
adds r2, r0, r1 adds r2, r0, r1
cmp r2, r3 cmp r2, r3
bcc CopyDataInit bcc CopyDataInit
ldr r2, =_sbss
b LoopFillZerobss
/* Zero fill the bss segment. */
FillZerobss:
movs r3, #0
str r3, [r2], #4
LoopFillZerobss:
ldr r3, = _ebss
cmp r2, r3
bcc FillZerobss
/* Call the clock system intitialization function.*/ /* Call the clock system intitialization function.*/
bl SystemInit bl SystemInit