clang/test/Driver/baremetal-multilib.yaml

   1 # REQUIRES: shell
   2 # UNSUPPORTED: system-windows
   3
   4 # RUN: %clang --multi-lib-config=%s -no-canonical-prefixes -x c++ %s -### -o %t.out 2>&1 \
   5 # RUN:     --target=thumbv8m.main-none-eabihf --sysroot= \
   6 # RUN:   | FileCheck %s
   7 # CHECK:      "-cc1" "-triple" "thumbv8m.main-unknown-none-eabihf"
   8 # CHECK-SAME: "-internal-isystem" "[[SYSROOT:[^"]*]]/bin/../lib/clang-runtimes/arm-none-eabi/thumb/v8-m.main/fp/include/c++/v1"
   9 # CHECK-SAME: "-internal-isystem" "[[SYSROOT]]/bin/../lib/clang-runtimes/arm-none-eabi/thumb/v8-m.main/fp/include"
  10 # CHECK-SAME: "-x" "c++" "{{.*}}baremetal-multilib.yaml"
  11 # CHECK-NEXT: ld{{(.exe)?}}" "{{.*}}.o" "-Bstatic"
  12 # CHECK-SAME: "-L[[SYSROOT]]/bin/../lib/clang-runtimes/arm-none-eabi/thumb/v8-m.main/fp/lib"
  13 # CHECK-SAME: "-lc" "-lm" "{{[^"]*}}libclang_rt.builtins.a"
  14 # CHECK-SAME: "-o" "{{.*}}.tmp.out"
  15
  16 # RUN: %clang --multi-lib-config=%s -no-canonical-prefixes -x c++ %s -### -o %t.out 2>&1 \
  17 # RUN:     --target=thumbv7em-none-eabi -mfpu=fpv4-sp-d16 --sysroot= \
  18 # RUN:   | FileCheck --check-prefix=CHECK-NO-MATCH %s
  19 # CHECK-NO-MATCH: warning: no multilib found matching flags:
  20 # CHECK-NO-MATCH-SAME: --target=thumbv7em-unknown-none-eabi
  21 # CHECK-NO-MATCH: note: available multilibs are:
  22 # CHECK-NO-MATCH: --target=thumbv6m-unknown-none-eabi -mfpu=none
  23 # CHECK-NO-MATCH: --target=thumbv7m-unknown-none-eabi -mfpu=none
  24 # CHECK-NO-MATCH: --target=thumbv7em-unknown-none-eabi -mfpu=none
  25
  26 # RUN: %clang --multi-lib-config=%s -no-canonical-prefixes -print-multi-directory 2>&1 \
  27 # RUN:     --target=thumbv8m.main-none-eabihf --sysroot= \
  28 # RUN:   | FileCheck --check-prefix=CHECK-PRINT-MULTI-DIRECTORY %s
  29 # CHECK-PRINT-MULTI-DIRECTORY: arm-none-eabi/thumb/v8-m.main/fp
  30
  31 # RUN: %clang --multi-lib-config=%s -no-canonical-prefixes -print-multi-lib 2>&1 \
  32 # RUN:     --target=arm-none-eabi --sysroot= \
  33 # RUN:   | FileCheck --check-prefix=CHECK-PRINT-MULTI-LIB %s
  34 # CHECK-PRINT-MULTI-LIB: arm-none-eabi/thumb/v6-m/nofp;@-target=thumbv6m-unknown-none-eabi@mfpu=none
  35 # CHECK-PRINT-MULTI-LIB: arm-none-eabi/thumb/v7-m/nofp;@-target=thumbv7m-unknown-none-eabi@mfpu=none
  36 # CHECK-PRINT-MULTI-LIB: arm-none-eabi/thumb/v7e-m/nofp;@-target=thumbv7em-unknown-none-eabi@mfpu=none
  37 # CHECK-PRINT-MULTI-LIB: arm-none-eabi/thumb/v8-m.main/nofp;@-target=thumbv8m.main-unknown-none-eabi@mfpu=none
  38 # CHECK-PRINT-MULTI-LIB: arm-none-eabi/thumb/v8.1-m.main/nofp/nomve;@-target=thumbv8.1m.main-unknown-none-eabi@mfpu=none
  39 # CHECK-PRINT-MULTI-LIB: arm-none-eabi/thumb/v7e-m/fpv4_sp_d16;@-target=thumbv7em-unknown-none-eabihf@mfpu=fpv4-sp-d16
  40 # CHECK-PRINT-MULTI-LIB: arm-none-eabi/thumb/v7e-m/fpv5_d16;@-target=thumbv7em-unknown-none-eabihf@mfpu=fpv5-d16
  41 # CHECK-PRINT-MULTI-LIB: arm-none-eabi/thumb/v8-m.main/fp;@-target=thumbv8m.main-unknown-none-eabihf@mfpu=fpv5-d16
  42 # CHECK-PRINT-MULTI-LIB: arm-none-eabi/thumb/v8.1-m.main/fp;@-target=thumbv8.1m.main-unknown-none-eabihf@mfpu=fp-armv8-fullfp16-sp-d16
  43 # CHECK-PRINT-MULTI-LIB: arm-none-eabi/thumb/v8.1-m.main/nofp/mve;@-target=thumbv8.1m.main-unknown-none-eabihf@march=thumbv8.1m.main+mve@mfpu=none
  44
  45 # RUN: %clang --multi-lib-config=%s -no-canonical-prefixes -x assembler -mexecute-only \
  46 # RUN:     --target=arm-none-eabi --sysroot= %s -c -### 2>&1 \
  47 # RUN:    | FileCheck %s --check-prefix=CHECK-NO-EXECUTE-ONLY-ASM
  48 # CHECK-NO-EXECUTE-ONLY-ASM: warning: argument unused during compilation: '-mexecute-only'
  49
  50 ---
  51 # This file is in two parts:
  52 # 1. A list of library variants.
  53 # 2. A mapping from flags generated from command line arguments to further
  54 #    flags.
  55
  56 # How does clang use this file?
  57 # 1. If the ToolChain class for the architecture supports this form of
  58 #    multilib it then it loads the file if present in sysroot.
  59 # 2. Generate flags from the user provided arguments.
  60 #    (Use `clang -print-multi-flags-experimental` to see which flags are
  61 #    generated).
  62 # 3. Compare the arguments against each regular expression and store
  63 #    associated flags if there's a match.
  64 # 4. Find the last library variant whose flags are a subset of the
  65 #    flags derived from the user provided arguments.
  66 # 5. Use the directory for the library variant as the sysroot.
  67
  68 # Clang will emit an error if this number is greater than its current multilib
  69 # version or if its major version differs, but will accept lesser minor
  70 # versions.
  71 MultilibVersion: 1.0
  72
  73 # The first section of the file is the list of library variants.
  74 # A library is considered compatible if the are a subset of the flags derived
  75 # from the arguments provided by the user.
  76 # If multiple libraries are deemed compatible then the one that appears
  77 # last in the list wins. A ToolChain may instead opt to use more than one
  78 # multilib, layered on top of each other.
  79
  80 Variants:
  81 - Dir: arm-none-eabi/arm/v4t
  82   Flags: [--target=armv4t-unknown-none-eabi]
  83
  84 - Dir: arm-none-eabi/thumb/v6-m/nofp
  85   Flags: [--target=thumbv6m-unknown-none-eabi, -mfpu=none]
  86
  87 - Dir: arm-none-eabi/thumb/v7-m/nofp
  88   Flags: [--target=thumbv7m-unknown-none-eabi, -mfpu=none]
  89
  90 - Dir: arm-none-eabi/thumb/v7e-m/nofp
  91   Flags: [--target=thumbv7em-unknown-none-eabi, -mfpu=none]
  92
  93 - Dir: arm-none-eabi/thumb/v8-m.main/nofp
  94   Flags: [--target=thumbv8m.main-unknown-none-eabi, -mfpu=none]
  95
  96 - Dir: arm-none-eabi/thumb/v8.1-m.main/nofp/nomve
  97   Flags: [--target=thumbv8.1m.main-unknown-none-eabi, -mfpu=none]
  98
  99 - Dir: arm-none-eabi/thumb/v7e-m/fpv4_sp_d16
 100   Flags: [--target=thumbv7em-unknown-none-eabihf, -mfpu=fpv4-sp-d16]
 101
 102 - Dir: arm-none-eabi/thumb/v7e-m/fpv5_d16
 103   Flags: [--target=thumbv7em-unknown-none-eabihf, -mfpu=fpv5-d16]
 104
 105 - Dir: arm-none-eabi/thumb/v8-m.main/fp
 106   Flags: [--target=thumbv8m.main-unknown-none-eabihf, -mfpu=fpv5-d16]
 107
 108 - Dir: arm-none-eabi/thumb/v8.1-m.main/fp
 109   Flags: [--target=thumbv8.1m.main-unknown-none-eabihf, -mfpu=fp-armv8-fullfp16-sp-d16]
 110
 111 - Dir: arm-none-eabi/thumb/v8.1-m.main/nofp/mve
 112   Flags: [--target=thumbv8.1m.main-unknown-none-eabihf, -march=thumbv8.1m.main+mve, -mfpu=none]
 113
 114
 115 # The second section of the file is a map from auto-detected flags
 116 # to custom flags. The auto-detected flags can be printed out
 117 # by running clang with `-print-multi-flags-experimental`.
 118 # The regex must match a whole flag string.
 119 # All flags in the "Flags" list will be added if an argument matches.
 120 Mappings:
 121 # For v8m.base (and potential later v8m baseline versions) use v6m
 122 - Match: --target=thumbv8(\.[0-9]+)?m\.base-unknown-none-eabi
 123   Flags: [--target=thumbv6m-unknown-none-eabi]
 124 # Match versions after v8.1m.main. We assume that v8.2m (if/when it exists) will
 125 # be backwards compatible with v8.1m.
 126 # The alternative is to not recognise later versions, and require that
 127 # this multilib spec is updated before it can be used with newer
 128 # architecture versions.
 129 - Match: --target=thumbv8\.[1-9]m\.main-unknown-none-eabi
 130   Flags: [--target=thumbv8.1m.main-unknown-none-eabi]
 131 - Match: --target=thumbv8\.[1-9]m\.main-unknown-none-eabihf
 132   Flags: [--target=thumbv8.1m.main-unknown-none-eabihf]
 133
 134 - Match: -march=thumbv8\.[1-9]m\.main.*\+mve($|\+).*
 135   Flags: [-march=thumbv8.1m.main+mve]
 136
 137 # Hierarchy among FPUs: fpvN-d16 is a superset of fpvN-sp-d16, and
 138 # fpvN-d16 is a superset of fpv[N-1]-d16, for all N.
 139 - Match: -mfpu=fpv5-d16
 140   Flags:
 141   - -mfpu=fpv4-d16
 142   - -mfpu=fpv5-sp-d16
 143   - -mfpu=fpv4-sp-d16
 144 - Match: -mfpu=fpv5-sp-d16
 145   Flags:
 146   - -mfpu=fpv4-sp-d16
 147 - Match: -mfpu=fpv4-d16
 148   Flags:
 149   - -mfpu=fpv4-sp-d16
 150
 151 ...