2009/9/8 A.Rames <[email protected]>: > > I am trying to compile v8 shell example on my beagleboard, but the > build meets fails ont the following error: > > g++ -o obj/release/arm/cpu-arm.o -c -Wall -Werror -W -Wno-unused- > parameter -Wnon-virtual-dtor -pedantic -O3 -fomit-frame-pointer -fdata- > sections -ffunction-sections -ansi -fno-rtti -fno-exceptions -Wall - > Werror -W -Wno-unused-parameter -Wnon-virtual-dtor -pedantic -O3 - > fomit-frame-pointer -fdata-sections -ffunction-sections -ansi - > DV8_TARGET_ARCH_ARM -DV8_NATIVE_REGEXP -DENABLE_LOGGING_AND_PROFILING - > Isrc src/arm/cpu-arm.cc > > /tmp/ccMqAVAn.s: Assembler messages: > /tmp/ccMqAVAn.s:58: Error: selected processor does not support `bkpt > 0' > > I actually managed to get v8 javascript shell work by cross-compiling > it with the CodeSourcery toolchain, but I would like to compile it on > the board itself as the cross-compiled shell seems not very efficient: > I get a score around 93 on the v8 version 3 test. This seems quite low > compared to the 800 score on a 300MHz faster x86 intel processor, and > compared to SFX without JIT on the same board ( "only" 45% slower > whereas it's about 5 times slower on other processors) > > I am not very skilled about arm architectures and how v8 supports > them, but reading through the code I noticed there is no > __ARM_ARCH_8__ test like for other arm architectures in macro- > assembler-arm.cc l.57. Is the arm 8 architecture not supported?
ARM have a confusing system where their instruction set architectures are numbered and their implementations are also numbered, but the numbers have nothing to do with each other. ARM7 implements ARMv4 ARM9 implements ARMv5 ARM11 implements ARMv6 Cortex A8 implements ARMv7 I probably got that wrong. It gives me a headache. The __ARM_ARCH_xx__ macros refer to the instruction set. > > > Could someone either help me fix this error or confirm (or infirm) > those weird results? > > Thanks > > > -- Erik Corry, Software Engineer Google Denmark ApS. CVR nr. 28 86 69 84 c/o Philip & Partners, 7 Vognmagergade, P.O. Box 2227, DK-1018 Copenhagen K, Denmark. --~--~---------~--~----~------------~-------~--~----~ v8-users mailing list [email protected] http://groups.google.com/group/v8-users -~----------~----~----~----~------~----~------~--~---
