> With the arm cross compiler: > /usr/libexec/gcc/arm-none-eabi/ld: /tmp/ccupVhtJ.ltrans0.ltrans.o: reference to malloc > /usr/libexec/gcc/arm-none-eabi/ld: /tmp/ccupVhtJ.ltrans0.ltrans.o: in function `f': > /home/gabriel/tmp/t1.c:3: undefined reference to `malloc' > collect2: error: ld returned 1 exit status > > So it's just not finding the symbol? It's how static linking works: the defining object is not unpacked from libc.a unless the linker previously saw a reference to it. The linker would need to (re)scan libc.a after being handed this ltrans unit from the LTO plugin. Can you show output with '-Wl,-v,-t', with and without LTO? Alexander
