下面是一个ld文件的内容,以下6个地方不明白代表什么意思,求解答!
1、KEEP (*(.ctors)) ctors代表什么意思?
2、KEEP (*(.dtors)) dtors代表什么意思?
3、KEEP (*(.init_array*)) init_array代表什么意思?
4、*(.init),*(.fini*)代表什么意思?
5、*(.ARM.exidx* .gnu.linkonce.armexidx.*)什么意思?
6、*(.ARM.extab* .gnu.linkonce.armextab.*)什么意思?
[C] 纯文本查看 复制代码 MEMORY
{
FLASH (RX) : ORIGIN = 0x00000000, LENGTH = 0x00040000
SRAM (WX) : ORIGIN = 0x20000000, LENGTH = 0x00008000
}
REGION_ALIAS("REGION_TEXT", FLASH);
REGION_ALIAS("REGION_BSS", SRAM);
REGION_ALIAS("REGION_DATA", SRAM);
REGION_ALIAS("REGION_STACK", SRAM);
REGION_ALIAS("REGION_HEAP", SRAM);
REGION_ALIAS("REGION_ARM_EXIDX", FLASH);
REGION_ALIAS("REGION_ARM_EXTAB", FLASH);
SECTIONS {
PROVIDE (_intvecs_base_address =
DEFINED(_intvecs_base_address) ? _intvecs_base_address : 0x0);
.intvecs (_intvecs_base_address) : AT (_intvecs_base_address) {
KEEP (*(.intvecs))
} > REGION_TEXT
PROVIDE (_vtable_base_address =
DEFINED(_vtable_base_address) ? _vtable_base_address : 0x20000000);
.vtable (_vtable_base_address) (NOLOAD) : {
KEEP (*(.vtable))
} > REGION_DATA
.text : {
CREATE_OBJECT_SYMBOLS
*(.text)
*(.text.*)
. = ALIGN(0x4);
KEEP (*(.ctors))
. = ALIGN(0x4);
KEEP (*(.dtors))
. = ALIGN(0x4);
__init_array_start = .;
KEEP (*(.init_array*))
__init_array_end = .;
*(.init)
*(.fini*)
} > REGION_TEXT AT> REGION_TEXT
PROVIDE (__etext = .);
PROVIDE (_etext = .);
PROVIDE (etext = .);
.rodata : {
*(.rodata)
*(.rodata*)
} > REGION_TEXT AT> REGION_TEXT
.data : ALIGN (4) {
__data_load__ = LOADADDR (.data);
__data_start__ = .;
*(.data)
*(.data*)
. = ALIGN (4);
__data_end__ = .;
} > REGION_DATA AT> REGION_TEXT
.ARM.exidx : {
__exidx_start = .;
*(.ARM.exidx* .gnu.linkonce.armexidx.*)
__exidx_end = .;
} > REGION_ARM_EXIDX AT> REGION_ARM_EXIDX
.ARM.extab : {
*(.ARM.extab* .gnu.linkonce.armextab.*)
} > REGION_ARM_EXTAB AT> REGION_ARM_EXTAB
.bss : {
__bss_start__ = .;
*(.shbss)
*(.bss)
*(.bss.*)
*(COMMON)
. = ALIGN (4);
__bss_end__ = .;
} > REGION_BSS AT> REGION_BSS
.heap : {
__heap_start__ = .;
end = __heap_start__;
_end = end;
__end = end;
KEEP(*(.heap))
__heap_end__ = .;
__HeapLimit = __heap_end__;
} > REGION_HEAP AT> REGION_HEAP
.stack (NOLOAD) : ALIGN(0x8) {
_stack = .;
__stack = .;
KEEP(*(.stack))
} > REGION_STACK AT> REGION_STACK
}
|