search

llvm / llvm-project

The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
http://llvm.org
Other
28.49k stars 11.78k forks source link

error: unknown target CPU 'armv8-a+nofp' #87903

Open zhangxin6483 opened 6 months ago

zhangxin6483 commented 6 months ago

While buildingJailhouse with enabling clang am receiving the below error,

error: unknown target CPU 'armv8-a+nofp' note: valid target CPU values are: nocona, core2, penryn, bonnell, atom, silvermont, slm, goldmont, goldmont-plus, tremont, nehalem, corei7, westmere, sandybridge, corei7-avx, ivybridge, core-avx-i, haswell, core-avx2, broadwell, skylake, skylake-avx512, skx, cascadelake, cooperlake, cannonlake, icelake-client, icelake-server, tigerlake, sapphirerapids, alderlake, knl, knm, k8, athlon64, athlon-fx, opteron, k8-sse3, athlon64-sse3, opteron-sse3, amdfam10, barcelona, btver1, btver2, bdver1, bdver2, bdver3, bdver4, znver1, znver2, znver3, x86-64, x86-64-v2, x86-64-v3, x86-64-v4

kroot@tracy-pc:/home/jailhouse/src/jailhouse# clang -print-supported-cpus Android (7284624, based on r416183b) clang version 12.0.5 (https://android.googlesource.com/toolchain/llvm-project c935d99d7cf2016289302412d708641d52d2f7ee) Target: x86_64-unknown-linux-gnu Thread model: posix InstalledDir: /home/zhangshizong/itx3588j-aosp12/prebuilts/clang/host/linux-x86/clang-r416183b/bin Available CPUs for this target:

    alderlake
    amdfam10
    athlon
    athlon-4
    athlon-fx
    athlon-mp
    athlon-tbird
    athlon-xp
    athlon64
    athlon64-sse3
    atom
    barcelona
    bdver1
    bdver2
    bdver3
    bdver4
    bonnell
    broadwell
    btver1
    btver2
    c3
    c3-2
    cannonlake
    cascadelake
    cooperlake
    core-avx-i
    core-avx2
    core2
    corei7
    corei7-avx
    generic
    geode
    goldmont
    goldmont-plus
    haswell
    i386
    i486
    i586
    i686
    icelake-client
    icelake-server
    ivybridge
    k6
    k6-2
    k6-3
    k8
    k8-sse3
    knl
    knm
    lakemont
    nehalem
    nocona
    opteron
    opteron-sse3
    penryn
    pentium
    pentium-m
    pentium-mmx
    pentium2
    pentium3
    pentium3m
    pentium4
    pentium4m
    pentiumpro
    prescott
    sandybridge
    sapphirerapids
    silvermont
    skx
    skylake
    skylake-avx512
    slm
    tigerlake
    tremont
    westmere
    winchip-c6
    winchip2
    x86-64
    x86-64-v2
    x86-64-v3
    x86-64-v4
    yonah
    znver1
    znver2
    znver3

Use -mcpu or -mtune to specify the target's processor. For example, clang --target=aarch64-unknown-linux-gui -mcpu=cortex-a35

Can I get more information on how to make it work for armv8-a+nofp?

tks.

llvmbot commented 6 months ago

@llvm/issue-subscribers-backend-aarch64

Author: None (zhangxin6483)

While buildingJailhouse with enabling clang am receiving the below error, error: unknown target CPU 'armv8-a+nofp' note: valid target CPU values are: nocona, core2, penryn, bonnell, atom, silvermont, slm, goldmont, goldmont-plus, tremont, nehalem, corei7, westmere, sandybridge, corei7-avx, ivybridge, core-avx-i, haswell, core-avx2, broadwell, skylake, skylake-avx512, skx, cascadelake, cooperlake, cannonlake, icelake-client, icelake-server, tigerlake, sapphirerapids, alderlake, knl, knm, k8, athlon64, athlon-fx, opteron, k8-sse3, athlon64-sse3, opteron-sse3, amdfam10, barcelona, btver1, btver2, bdver1, bdver2, bdver3, bdver4, znver1, znver2, znver3, x86-64, x86-64-v2, x86-64-v3, x86-64-v4 kroot@tracy-pc:/home/jailhouse/src/jailhouse# clang -print-supported-cpus Android (7284624, based on r416183b) clang version 12.0.5 (https://android.googlesource.com/toolchain/llvm-project c935d99d7cf2016289302412d708641d52d2f7ee) Target: x86_64-unknown-linux-gnu Thread model: posix InstalledDir: /home/zhangshizong/itx3588j-aosp12/prebuilts/clang/host/linux-x86/clang-r416183b/bin Available CPUs for this target: alderlake amdfam10 athlon athlon-4 athlon-fx athlon-mp athlon-tbird athlon-xp athlon64 athlon64-sse3 atom barcelona bdver1 bdver2 bdver3 bdver4 bonnell broadwell btver1 btver2 c3 c3-2 cannonlake cascadelake cooperlake core-avx-i core-avx2 core2 corei7 corei7-avx generic geode goldmont goldmont-plus haswell i386 i486 i586 i686 icelake-client icelake-server ivybridge k6 k6-2 k6-3 k8 k8-sse3 knl knm lakemont nehalem nocona opteron opteron-sse3 penryn pentium pentium-m pentium-mmx pentium2 pentium3 pentium3m pentium4 pentium4m pentiumpro prescott sandybridge sapphirerapids silvermont skx skylake skylake-avx512 slm tigerlake tremont westmere winchip-c6 winchip2 x86-64 x86-64-v2 x86-64-v3 x86-64-v4 yonah znver1 znver2 znver3 Use -mcpu or -mtune to specify the target's processor. For example, clang --target=aarch64-unknown-linux-gui -mcpu=cortex-a35 Can I get more information on how to make it work for armv8-a+nofp? tks.
Luhaocong commented 6 months ago

Maybe what you want is a cross-toolchain (host=x86 and target=aarch64), you can

  1. Download release binary directly from https://github.com/llvm/llvm-project/releases/tag/llvmorg-18.1.2
  2. Build cross-toolchain from source code : https://llvm.org/docs/GettingStarted.html#getting-the-source-code-and-building-llvm
  3. Compile code online if you only want to get assembly results as soon as possible : https://godbolt.org/z/crq3rfExb
zhangxin6483 commented 6 months ago

Maybe what you want is a cross-toolchain (host=x86 and target=aarch64), you can

  1. Download release binary directly from https://github.com/llvm/llvm-project/releases/tag/llvmorg-18.1.2
  2. Build cross-toolchain from source code : https://llvm.org/docs/GettingStarted.html#getting-the-source-code-and-building-llvm
  3. Compile code online if you only want to get assembly results as soon as possible : https://godbolt.org/z/crq3rfExb

ok, thank you.