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STM32F7xx : GCC_ARM remove zero bss, in startup. 

zero bss is done in libc init after call to _start.
pull/3074/head
Michel Jaouen 2016-10-17 17:23:50 +02:00
parent 93a0b9ce60
commit a711ff360b
4 changed files with 0 additions and 60 deletions
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15
targets/TARGET_STM/TARGET_STM32F7/TARGET_DISCO_F746NG/device/TOOLCHAIN_GCC_ARM/startup_stm32f746xx.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
/* stack used for SystemInit_ExtMemCtl; always internal RAM used */ /* stack used for SystemInit_ExtMemCtl; always internal RAM used */
/** /**
@ -95,17 +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 initialization function.*/ /* Call the clock system initialization function.*/
bl SystemInit bl SystemInit

15
targets/TARGET_STM/TARGET_STM32F7/TARGET_DISCO_F769NI/device/TOOLCHAIN_GCC_ARM/startup_stm32f769xx.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
/* stack used for SystemInit_ExtMemCtl; always internal RAM used */ /* stack used for SystemInit_ExtMemCtl; always internal RAM used */
/** /**
@ -95,17 +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 initialization function.*/ /* Call the clock system initialization function.*/
bl SystemInit bl SystemInit

15
targets/TARGET_STM/TARGET_STM32F7/TARGET_F746_F756/device/TOOLCHAIN_GCC_ARM/startup_stm32f746xx.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
/* stack used for SystemInit_ExtMemCtl; always internal RAM used */ /* stack used for SystemInit_ExtMemCtl; always internal RAM used */
/** /**
@ -95,17 +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 initialization function.*/ /* Call the clock system initialization function.*/
bl SystemInit bl SystemInit

15
targets/TARGET_STM/TARGET_STM32F7/TARGET_NUCLEO_F767ZI/device/TOOLCHAIN_GCC_ARM/startup_stm32f769xx.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
/* stack used for SystemInit_ExtMemCtl; always internal RAM used */ /* stack used for SystemInit_ExtMemCtl; always internal RAM used */
/** /**
@ -95,17 +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 initialization function.*/ /* Call the clock system initialization function.*/
bl SystemInit bl SystemInit