Hi folks, While trying to build the newest version of buildrom GIT on my FC5 laptop I've got:
gcc -m32 -nostdlib -nostartfiles -static -o linuxbios -T ldscript.ld crt0.o /usr/bin/ld: section .id [ffffffd9 -> ffffffef] overlaps section .rom [fffff1a8 -> ffffffdf] /usr/bin/ld: linuxbios: section .id lma 0xffffffd9 overlaps previous sections /usr/bin/ld: linuxbios: section .reset lma 0xfffffff0 overlaps previous sectionscollect2: ld returned 1 exit status make[2]: *** [linuxbios] Error 1 I noticed that rom_stream.o for LZMA is twice as large, causing the section overlap. -rom_stream.o: 2188 +rom_stream.o: 4972 Switching the compiler optimization option from -Os to -O0 (no optimization) shrinks rom_stream.o size, making it fit appropriately. --- Makefile.orig 2006-09-22 01:32:23.000000000 -0300 +++ Makefile 2006-09-22 01:35:50.000000000 -0300 @@ -17,8 +17,8 @@ LIBGCC_FILE_NAME := $(shell $(CC) -print-libgcc-file-name) GCC_INC_DIR := $(shell $(CC) -print-search-dirs | sed -ne "s/install: \(.*\)/\1include/gp") CPPFLAGS := -I$(TOP)/src/include -I$(TOP)/src/arch/$(ARCH)/include -I$(GCC_INC_DIR) $(CPUFLAGS) - CFLAGS := $(CPU_OPT) $(CPPFLAGS) -Os -nostdinc -nostdlib -fno-builtin -Wall - HOSTCFLAGS:= -Os -Wall + CFLAGS := $(CPU_OPT) $(CPPFLAGS) -O0 -nostdinc -nostdlib -fno-builtin -Wall + HOSTCFLAGS:= -O0 -Wall LINUXBIOS_RAM-$(CONFIG_COMPRESS):=linuxbios_ram.nrv2b LINUXBIOS_RAM-$(CONFIG_UNCOMPRESSED):=linuxbios_ram.bin .PHONY : crt0.s After that workaround I get http://dev.laptop.org/ticket/120, reported by dilinger, which seems to be a separate problem. Carl, I suspect we should either shrink the LZMA code (best option) or use less aggressive compiler optimizations. Can you please look into the details of this? gcc version 4.1.0 20060304 (Red Hat 4.1.0-3) Thanks _______________________________________________ Devel mailing list [email protected] http://mailman.laptop.org/mailman/listinfo/devel
