clang/test/Driver/baremetal-multilib.yaml

   1 # REQUIRES: shell
   2 # UNSUPPORTED: system-windows
   3
   4 # RUN: rm -rf %T/baremetal_multilib
   5 # RUN: mkdir -p %T/baremetal_multilib/bin
   6 # RUN: mkdir -p %T/baremetal_multilib/lib/clang-runtimes/arm-none-eabi/thumb/v8-m.main/fp/lib
   7 # RUN: touch %T/baremetal_multilib/lib/clang-runtimes/arm-none-eabi/thumb/v8-m.main/fp/lib/libclang_rt.builtins.a
   8 # RUN: ln -s %clang %T/baremetal_multilib/bin/clang
   9 # RUN: ln -s %s %T/baremetal_multilib/lib/clang-runtimes/multilib.yaml
  10
  11 # RUN: %T/baremetal_multilib/bin/clang -no-canonical-prefixes -x c++ %s -### -o %t.out 2>&1 \
  12 # RUN:     --target=thumbv8m.main-none-eabihf --sysroot= \
  13 # RUN:   | FileCheck -DSYSROOT=%T/baremetal_multilib %s
  14 # CHECK:      "-cc1" "-triple" "thumbv8m.main-none-unknown-eabihf"
  15 # CHECK-SAME: "-internal-isystem" "[[SYSROOT]]/bin/../lib/clang-runtimes/arm-none-eabi/thumb/v8-m.main/fp/include/c++/v1"
  16 # CHECK-SAME: "-internal-isystem" "[[SYSROOT]]/bin/../lib/clang-runtimes/arm-none-eabi/thumb/v8-m.main/fp/include"
  17 # CHECK-SAME: "-x" "c++" "{{.*}}baremetal-multilib.yaml"
  18 # CHECK-NEXT: ld{{(.exe)?}}" "{{.*}}.o" "-Bstatic"
  19 # CHECK-SAME: "-L[[SYSROOT]]/bin/../lib/clang-runtimes/arm-none-eabi/thumb/v8-m.main/fp/lib"
  20 # CHECK-SAME: "-lc" "-lm" "-lclang_rt.builtins"
  21 # CHECK-SAME: "-o" "{{.*}}.tmp.out"
  22
  23 # RUN: %T/baremetal_multilib/bin/clang -no-canonical-prefixes -x c++ %s -### -o %t.out 2>&1 \
  24 # RUN:     --target=thumbv7em-none-eabi -mfpu=fpv4-sp-d16 --sysroot= \
  25 # RUN:   | FileCheck --check-prefix=CHECK-NO-MATCH %s
  26 # CHECK-NO-MATCH: warning: no multilib found matching flags:
  27 # CHECK-NO-MATCH-SAME: --target=thumbv7em-none-unknown-eabi
  28 # CHECK-NO-MATCH: note: available multilibs are:
  29 # CHECK-NO-MATCH: --target=thumbv6m-none-unknown-eabi -mfpu=none
  30 # CHECK-NO-MATCH: --target=thumbv7m-none-unknown-eabi -mfpu=none
  31 # CHECK-NO-MATCH: --target=thumbv7em-none-unknown-eabi -mfpu=none
  32
  33 # RUN: %T/baremetal_multilib/bin/clang -no-canonical-prefixes -print-multi-directory 2>&1 \
  34 # RUN:     --target=thumbv8m.main-none-eabihf --sysroot= \
  35 # RUN:   | FileCheck --check-prefix=CHECK-PRINT-MULTI-DIRECTORY %s
  36 # CHECK-PRINT-MULTI-DIRECTORY: arm-none-eabi/thumb/v8-m.main/fp
  37
  38 # RUN: %T/baremetal_multilib/bin/clang -no-canonical-prefixes -print-multi-lib 2>&1 \
  39 # RUN:     --target=arm-none-eabi --sysroot= \
  40 # RUN:   | FileCheck --check-prefix=CHECK-PRINT-MULTI-LIB %s
  41 # CHECK-PRINT-MULTI-LIB: arm-none-eabi/thumb/v6-m/nofp;@-target=thumbv6m-none-unknown-eabi@mfpu=none
  42 # CHECK-PRINT-MULTI-LIB: arm-none-eabi/thumb/v7-m/nofp;@-target=thumbv7m-none-unknown-eabi@mfpu=none
  43 # CHECK-PRINT-MULTI-LIB: arm-none-eabi/thumb/v7e-m/nofp;@-target=thumbv7em-none-unknown-eabi@mfpu=none
  44 # CHECK-PRINT-MULTI-LIB: arm-none-eabi/thumb/v8-m.main/nofp;@-target=thumbv8m.main-none-unknown-eabi@mfpu=none
  45 # CHECK-PRINT-MULTI-LIB: arm-none-eabi/thumb/v8.1-m.main/nofp/nomve;@-target=thumbv8.1m.main-none-unknown-eabi@mfpu=none
  46 # CHECK-PRINT-MULTI-LIB: arm-none-eabi/thumb/v7e-m/fpv4_sp_d16;@-target=thumbv7em-none-unknown-eabihf@mfpu=fpv4-sp-d16
  47 # CHECK-PRINT-MULTI-LIB: arm-none-eabi/thumb/v7e-m/fpv5_d16;@-target=thumbv7em-none-unknown-eabihf@mfpu=fpv5-d16
  48 # CHECK-PRINT-MULTI-LIB: arm-none-eabi/thumb/v8-m.main/fp;@-target=thumbv8m.main-none-unknown-eabihf@mfpu=fpv5-d16
  49 # CHECK-PRINT-MULTI-LIB: arm-none-eabi/thumb/v8.1-m.main/fp;@-target=thumbv8.1m.main-none-unknown-eabihf@mfpu=fp-armv8-fullfp16-sp-d16
  50 # CHECK-PRINT-MULTI-LIB: arm-none-eabi/thumb/v8.1-m.main/nofp/mve;@-target=thumbv8.1m.main-none-unknown-eabihf@march=thumbv8.1m.main+mve@mfpu=none
  51
  52 # RUN: %T/baremetal_multilib/bin/clang -no-canonical-prefixes -x assembler -mexecute-only \
  53 # RUN:     --target=arm-none-eabi --sysroot= %s -c -### 2>&1 \
  54 # RUN:    | FileCheck %s --check-prefix=CHECK-NO-EXECUTE-ONLY-ASM
  55 # CHECK-NO-EXECUTE-ONLY-ASM: warning: argument unused during compilation: '-mexecute-only'
  56
  57 ---
  58 # This file is in two parts:
  59 # 1. A list of library variants.
  60 # 2. A mapping from flags generated from command line arguments to further
  61 #    flags.
  62
  63 # How does clang use this file?
  64 # 1. If the ToolChain class for the architecture supports this form of
  65 #    multilib it then it loads the file if present in sysroot.
  66 # 2. Generate flags from the user provided arguments.
  67 #    (Use `clang -print-multi-flags-experimental` to see which flags are
  68 #    generated).
  69 # 3. Compare the arguments against each regular expression and store
  70 #    associated flags if there's a match.
  71 # 4. Find the last library variant whose flags are a subset of the
  72 #    flags derived from the user provided arguments.
  73 # 5. Use the directory for the library variant as the sysroot.
  74
  75 # Clang will emit an error if this number is greater than its current multilib
  76 # version or if its major version differs, but will accept lesser minor
  77 # versions.
  78 MultilibVersion: 1.0
  79
  80 # The first section of the file is the list of library variants.
  81 # A library is considered compatible if the are a subset of the flags derived
  82 # from the arguments provided by the user.
  83 # If multiple libraries are deemed compatible then the one that appears
  84 # last in the list wins. A ToolChain may instead opt to use more than one
  85 # multilib, layered on top of each other.
  86
  87 Variants:
  88 - Dir: arm-none-eabi/arm/v4t
  89   Flags: [--target=armv4t-none-unknown-eabi]
  90
  91 - Dir: arm-none-eabi/thumb/v6-m/nofp
  92   Flags: [--target=thumbv6m-none-unknown-eabi, -mfpu=none]
  93
  94 - Dir: arm-none-eabi/thumb/v7-m/nofp
  95   Flags: [--target=thumbv7m-none-unknown-eabi, -mfpu=none]
  96
  97 - Dir: arm-none-eabi/thumb/v7e-m/nofp
  98   Flags: [--target=thumbv7em-none-unknown-eabi, -mfpu=none]
  99
 100 - Dir: arm-none-eabi/thumb/v8-m.main/nofp
 101   Flags: [--target=thumbv8m.main-none-unknown-eabi, -mfpu=none]
 102
 103 - Dir: arm-none-eabi/thumb/v8.1-m.main/nofp/nomve
 104   Flags: [--target=thumbv8.1m.main-none-unknown-eabi, -mfpu=none]
 105
 106 - Dir: arm-none-eabi/thumb/v7e-m/fpv4_sp_d16
 107   Flags: [--target=thumbv7em-none-unknown-eabihf, -mfpu=fpv4-sp-d16]
 108
 109 - Dir: arm-none-eabi/thumb/v7e-m/fpv5_d16
 110   Flags: [--target=thumbv7em-none-unknown-eabihf, -mfpu=fpv5-d16]
 111
 112 - Dir: arm-none-eabi/thumb/v8-m.main/fp
 113   Flags: [--target=thumbv8m.main-none-unknown-eabihf, -mfpu=fpv5-d16]
 114
 115 - Dir: arm-none-eabi/thumb/v8.1-m.main/fp
 116   Flags: [--target=thumbv8.1m.main-none-unknown-eabihf, -mfpu=fp-armv8-fullfp16-sp-d16]
 117
 118 - Dir: arm-none-eabi/thumb/v8.1-m.main/nofp/mve
 119   Flags: [--target=thumbv8.1m.main-none-unknown-eabihf, -march=thumbv8.1m.main+mve, -mfpu=none]
 120
 121
 122 # The second section of the file is a map from auto-detected flags
 123 # to custom flags. The auto-detected flags can be printed out
 124 # by running clang with `-print-multi-flags-experimental`.
 125 # The regex must match a whole flag string.
 126 # All flags in the "Flags" list will be added if an argument matches.
 127 Mappings:
 128 # For v8m.base (and potential later v8m baseline versions) use v6m
 129 - Match: --target=thumbv8(\.[0-9]+)?m\.base-none-unknown-eabi
 130   Flags: [--target=thumbv6m-none-unknown-eabi]
 131 # Match versions after v8.1m.main. We assume that v8.2m (if/when it exists) will
 132 # be backwards compatible with v8.1m.
 133 # The alternative is to not recognise later versions, and require that
 134 # this multilib spec is updated before it can be used with newer
 135 # architecture versions.
 136 - Match: --target=thumbv8\.[1-9]m\.main-none-unknown-eabi
 137   Flags: [--target=thumbv8.1m.main-none-unknown-eabi]
 138 - Match: --target=thumbv8\.[1-9]m\.main-none-unknown-eabihf
 139   Flags: [--target=thumbv8.1m.main-none-unknown-eabihf]
 140
 141 - Match: -march=thumbv8\.[1-9]m\.main.*\+mve($|\+).*
 142   Flags: [-march=thumbv8.1m.main+mve]
 143
 144 # Hierarchy among FPUs: fpvN-d16 is a superset of fpvN-sp-d16, and
 145 # fpvN-d16 is a superset of fpv[N-1]-d16, for all N.
 146 - Match: -mfpu=fpv5-d16
 147   Flags:
 148   - -mfpu=fpv4-d16
 149   - -mfpu=fpv5-sp-d16
 150   - -mfpu=fpv4-sp-d16
 151 - Match: -mfpu=fpv5-sp-d16
 152   Flags:
 153   - -mfpu=fpv4-sp-d16
 154 - Match: -mfpu=fpv4-d16
 155   Flags:
 156   - -mfpu=fpv4-sp-d16
 157
 158 ...