Messages in this thread Patch in this message | | | Date | Wed, 22 Apr 2015 17:00:36 +0800 | Subject | Re: [PATCH] blackfin: Makefile: Skip reloc overflow issue when COMPILE_TEST enabled | From | Steven Miao <> |
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Hi,
On Thu, Apr 9, 2015 at 5:03 AM, Chen Gang <xili_gchen_5257@hotmail.com> wrote: > l1_text is at L1_CODE_START (e.g. for bf533, 0xff800000). If the kernel > is too big, it may be overwritten, the related issue: > > LD init/built-in.o > init/built-in.o: In function `do_early_param': > init/main.c:(.init.text+0xe0): relocation truncated to fit: R_BFIN_PCREL24 against symbol `strcmp' defined in .l1.text section in arch/blackfin/lib/lib.a(strcmp.o) > init/main.c:(.init.text+0x10e): relocation truncated to fit: R_BFIN_PCREL24 against symbol `strcmp' defined in .l1.text section in arch/blackfin/lib/lib.a(strcmp.o) blackfin toolchain generate 24 bit pc-relative calls by default, with a range of –16,777,216 through 16,777,214 (0xFF00 0000 to 0x00FF FFFE) is available. So call to l1_text should be ok. What do you mean the kernel is too big? http://docs.blackfin.uclinux.org/doku.php?id=ism:call
> init/built-in.o: In function `unknown_bootoption': > > blackfin is for embedded system, the size limitition is acceptable, so > it is not the real world issue, which should be skipped if COMPILE_TEST > enabled. > > > Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> > --- > arch/blackfin/Makefile | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile > index 2ece4e3..e5195b4 100644 > --- a/arch/blackfin/Makefile > +++ b/arch/blackfin/Makefile > @@ -20,6 +20,9 @@ endif > KBUILD_AFLAGS += $(call cc-option,-mno-fdpic) > KBUILD_CFLAGS_MODULE += -mlong-calls > LDFLAGS += -m elf32bfin > +ifeq ($(CONFIG_COMPILE_TEST),y) > +LDFLAGS += --noinhibit-exec > +endif > > KBUILD_DEFCONFIG := BF537-STAMP_defconfig > > -- > 1.9.3
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