Hi, I noticed there are some builtins testcases failed in my "make check-gcc" when lto enabled. the command line like: xgcc ... .../gcc/testsuite/gcc.c-torture/execute/builtins/strlen.c .../gcc/testsuite/gcc.c-torture/execute/builtins/strlen-lib.c .../gcc/testsuite/gcc.c-torture/execute/builtins/lib/main.c -w -O2 -flto -flto-partition=none -lm -specs=rdimon.specs -lrdimon -lc -lg -lrdimon -mthumb -mcpu=cortex-m3 -o .../gcc/testsuite/gcc/strlen.x6 this failed testcase always complains: /tmp/ccw8n1Wt.lto.o: In function `strlen': ccYaDFzm.o:(.text+0x0): multiple definition of `strlen' .../lib/gcc/arm-none-eabi/4.7.0/../../../../arm-none-eabi/lib/armv7-m/libc.a(lib_a-strlen.o):strlen.c:(.text+0x0): first defined here collect2: error: ld returned 1 exit status There are a copy of strlen in c source file and a copy in libc.a. Seems gcc/lto always link libc.a and find the library copy first, which results in re-definition error. So any suggestions? Thanks very much. BTW, the testcase is ok without"-flto -flto-partition=none" specified. -- Best Regards.
