Hi, folk, Recently, I build LTP for testing uClinux. When I build LTP, an error occur: /tmp/ccxhcYOf.o: In function `main': /tmp/ccxhcYOf.o(.text+0x9b4): undefined reference to `sbrk' /tmp/ccxhcYOf.o(.text+0x10fc): undefined reference to `sbrk'
sbrk() is defined in uClibc/libc/sysdeps/linux/common/sbrk.c, and in some statement in the relative Makefile is following: ifneq ($(strip $(EXCLUDE_BRK)),y) CSRC+=sbrk.c endif I have some questions: 1. What dose sbrk() work for? When should I enable/disable EXCLUDE_BRK ? 2. We can configure the compile options by "make menuconfig" or configure them in uClibc/extra/Configs/Config.arch. Which compile options should be configured in uClibc/extra/Configs/Config.arch ? Or is there any document to reference? Thanks!
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