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我遇到了一个错误,无疑是由于我对连接器工作方式知识的限制。我编写的一些ANSI C代码在我的OS X框上编译和链接完美,但在为ARM进行交叉编译时无法与arm-none-eabi-ld
链接。当与arm-none-eabi-ld链接时未定义引用`calloc'
下面是从结果一个干净make
(与--verbose
上ld
):
arm-none-eabi-gcc -o build/fft.o src/fft.c -g -mthumb -mcpu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=softfp -Os -ffunction-sections -fdata-sections -MD -std=c99 -Wall -pedantic -DPART_TM4C123GH6PM -c -I../tivaware -DTARGET_IS_BLIZZARD_RA1
arm-none-eabi-gcc -o build/main.o src/main.c -g -mthumb -mcpu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=softfp -Os -ffunction-sections -fdata-sections -MD -std=c99 -Wall -pedantic -DPART_TM4C123GH6PM -c -I../tivaware -DTARGET_IS_BLIZZARD_RA1
arm-none-eabi-ld -o build/a.out build/fft.o build/main.o --verbose -T TM4C123GH6PM.ld --entry main --gc-sections
GNU ld (32-bit ARM EABI Toolchain JBS-FLOAT_IO-SGXXLITE_ML-2014.05-28-v2013.05-36-g3f93944) 2.24.51.20140217
Supported emulations:
armelf
opened script file TM4C123GH6PM.ld
using external linker script:
==================================================
MEMORY
{
FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 0x00040000
SRAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0X00008000
}
SECTIONS
{
/* code */
.text :
{
_text = .;
/* ensure ISR vectors are not removed by linker */
KEEP(*(.isr_vector))
*(.text*)
*(.rodata*)
_etext = .;
} > FLASH
/* static data */
.data : AT(ADDR(.text) + SIZEOF(.text))
{
_data = .;
*(vtable)
*(.data*)
_edata = .;
} > SRAM
/* static uninitialized data */
.bss :
{
_bss = .;
*(.bss*)
*(COMMON)
_ebss = .;
} > SRAM
}
==================================================
attempt to open build/fft.o succeeded
build/fft.o
attempt to open build/main.o succeeded
build/main.o
build/fft.o: In function `dft':
/path/src/fft.c:97: undefined reference to `calloc'
还有其他一些不确定的符号(__aeabi_dadd
,__muldc3
),我已经被截断为简洁。
我看不到'libc.lib'或'glibc.lib'链接。 'calloc','muldc3'等在那里。 – wallyk