gdb/testsuite/gdb.arch/altivec-abi.exp

   1 # Copyright (C) 2002-2024 Free Software Foundation, Inc.
   2 #
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15 #
  16
  17 # Tests for Powerpc AltiVec ABI
  18
  19
  20 #
  21 # This file uses altivec-abi.c for input.
  22 #
  23
  24 require allow_altivec_tests
  25
  26 standard_testfile
  27
  28 proc altivec_abi_tests { extra_flags force_abi } {
  29     global testfile binfile srcfile srcdir subdir
  30     global gdb_prompt
  31
  32     set compile_flags "debug nowarnings $extra_flags"
  33
  34     if  { [gdb_compile ${srcdir}/${subdir}/${srcfile} ${binfile} executable $compile_flags] != "" } {
  35         untested "failed to compile"
  36         return -1
  37     }
  38
  39     if { "$force_abi" == "auto" } {
  40         # If the toolchain does not record attributes, skip auto-ABI tests.
  41         set readelf_program [gdb_find_readelf]
  42         set result [catch "exec $readelf_program -A $binfile" output]
  43
  44         if {$result == 0 && ![regexp Tag_GNU_Power_ABI_Vector $output]} {
  45             untested "ABI not marked"
  46             return
  47         }
  48     }
  49
  50     clean_restart $binfile
  51
  52     # Run to `main' where we begin our tests.
  53     if {![runto_main]} {
  54         return -1
  55     }
  56
  57     gdb_test "set print frame-arguments all"
  58     gdb_test "set powerpc vector-abi $force_abi"
  59
  60     gdb_test "b marker" "Breakpoint 2 at.*file.*altivec-abi.c, line \[0-9\]+." "break marker"
  61     gdb_test "continue" "Breakpoint 2.*marker.*altivec-abi.c.*" "continue to marker"
  62     gdb_test "finish" "Run till exit from .0.*marker.*at.*altivec-abi.c.*main \\(\\) at.*altivec-abi.c.*result = vec_func \\(vshort,.*goes in v2.*" "back to main (1)"
  63
  64     # now all the arguments of vec_fun are initialized
  65
  66     set pattern "vec_func .vshort_f=.111, 222, 333, 444, 555, 666, 777, 888., vushort_f=.100, 200, 300, 400, 500, 600, 700, 800., vint_f=.-10, -20, -30, -40., vuint_f=.1111, 2222, 3333, 4444., vchar_f=.97, 98, 99, 100, 101, 102, 103, 104, 105, 108, 109, 110, 111, 112, 113, 114., vuchar_f=.65, 66, 67, 68, 69, 70, 71, 72, 73, 76, 77, 78, 79, 80, 81, 82., vfloat_f=.1.25, 3.75, 5.5, 1.25., x_f=.1, 2, 3, 4, 5, 6, 7, 8., y_f=.12, 22, 32, 42., a_f=.118, 101, 99, 116, 111, 114, 32, 111, 102, 32, 99, 104, 97, 114, 115, 46., b_f=.5.5, 4.5, 3.75, 2.25., c_f=.1.25, 3.5, 5.5, 7.75., intv_on_stack_f=.12, 34, 56, 78.."
  67
  68     set pattern1 $pattern
  69     append pattern1 " at.*altivec-abi.c.*vint_res  = vec_add.*vint_f, intv_on_stack_f.;"
  70
  71     # Now let's call the function.  This function has > 12 args,
  72     # the last one will go on the stack.
  73     set msg "call inferior function with vectors (1)"
  74     gdb_test "p vec_func(vshort,vushort,vint,vuint,vchar,vuchar,vfloat,x,y,a,b,c,intv_on_stack)" \
  75         ".\[0-9\]+ = .14, 36, 58, 80." "call inferior function with vectors (1)"
  76
  77
  78     # Let's call the function again with dummy arguments.  This is to clean
  79     # up the contents of the vector registers before the next call.
  80     gdb_test "p vec_func(vshort_d,vushort_d,vint_d,vuint_d,vchar_d,vuchar_d,vfloat_d,x_d,y_d,a_d,b_d,c_d,intv_on_stack_d)" \
  81         ".\[0-9\]+ = .0, 0, 0, 0." "call inferior function with vectors (2)"
  82
  83     # Attempt to take address of the return value of vec_func.
  84     gdb_test "p &vec_func(vshort,vushort,vint,vuint,vchar,vuchar,vfloat,x,y,a,b,c,intv_on_stack)" \
  85         "Attempt to take address of value not located in memory." \
  86         "Attempt to take address of the return value of vec_func"
  87
  88     # Attempt to assign a value to the return value of vec_func.
  89     gdb_test "set variable vec_func(vshort,vushort,vint,vuint,vchar,vuchar,vfloat,x,y,a,b,c,intv_on_stack) = {0,1,2,3}" \
  90         "Left operand of assignment is not an lvalue." \
  91         "Attempt to assign a value to the return value of vec_func"
  92
  93     # Let's step into the function, to see if the args are printed correctly.
  94     gdb_test "step" \
  95         $pattern1 \
  96         "step into vec_fun"
  97
  98     set pattern2 $pattern
  99     append pattern2 " at.*altivec-abi.c.*main.*result = vec_func .vshort,.*goes in v2.*Value returned is.*= .14, 36, 58, 80."
 100
 101     # Let's see if the result is returned correctly.
 102     set message "vector value returned correctly"
 103     gdb_test_multiple "finish" $message {
 104         -re "Run till exit from .0.*$pattern2.*$gdb_prompt $" {
 105             pass $message
 106         }
 107         -re "Run till exit from .0.*Cannot determine contents.*$gdb_prompt $" {
 108             # This happens in those cases where the vector is returned by
 109             # reference (generic vectors on 64-bit GNU/Linux).
 110             pass $message
 111         }
 112     }
 113
 114     # can we print the args correctly for this function?
 115     gdb_test "break struct_of_vector_func" "" ""
 116
 117     set pattern "struct_of_vector_func .vector_struct=.vshort1 = .1, 2, 3, 4, 5, 6, 7, 8., vshort2 = .11, 12, 13, 14, 15, 16, 17, 18., vshort3 = .21, 22, 23, 24, 25, 26, 27, 28., vshort4 = .31, 32, 33, 34, 35, 36, 37, 38... at.*altivec-abi.c.*"
 118
 119     gdb_test "continue" \
 120         "Breakpoint 3, $pattern.*vector_struct.vshort1 = vec_add .vector_struct.vshort1, vector_struct.vshort2.;" \
 121         "continue to struct_of_vector_func"
 122
 123     gdb_test "finish" \
 124         "Run till exit from .0  $pattern\[ \r\n\]+main.*altivec-abi.c.*array_of_vector_func.*" \
 125         "back to main (2)"
 126
 127     gdb_test "step" "" "step into array_of_vector_func"
 128     gdb_test "p matrix\[0\]" ".*= .1, 2, 3, 4, 5, 6, 7, 8." "print first vector"
 129     gdb_test "p matrix\[1\]" ".*= .11, 12, 13, 14, 15, 16, 17, 18." "print second vector"
 130     gdb_test "p matrix\[2\]" ".*= .21, 22, 23, 24, 25, 26, 27, 28." "print third vector"
 131     gdb_test "p matrix\[3\]" ".*= .31, 32, 33, 34, 35, 36, 37, 38." "print fourth vector"
 132 }
 133
 134 if [test_compiler_info gcc*] {
 135     set binprefix ${binfile}
 136
 137     with_test_prefix "default ABI, auto" {
 138         altivec_abi_tests  "additional_flags=-maltivec" "auto"
 139     }
 140
 141     # On GNU/Linux, we can mix -mabi=no-altivec and -mabi=altivec.
 142     # So test some combinations.
 143     if { [istarget "powerpc*-linux*"] } {
 144         # On 64-bit GNU/Linux with GCC 4.1 and 4.2, -mabi=no-altivec
 145         # was broken, so skip those tests there.
 146         if { ![is_lp64_target] || ![test_compiler_info "gcc-4-\[12\]-*"] } {
 147             set binfile ${binprefix}-ge-ge
 148             with_test_prefix "generic ABI, forced" {
 149                 altivec_abi_tests "additional_flags=-maltivec additional_flags=-mabi=no-altivec" "generic"
 150             }
 151
 152             set binfile ${binprefix}-ge-auto
 153             with_test_prefix "generic ABI, auto" {
 154                 altivec_abi_tests "additional_flags=-maltivec additional_flags=-mabi=no-altivec" "auto"
 155             }
 156         }
 157
 158         set binfile ${binprefix}-av-av
 159         with_test_prefix "AltiVec ABI, forced" {
 160             altivec_abi_tests "additional_flags=-maltivec additional_flags=-mabi=altivec" "altivec"
 161         }
 162
 163         set binfile ${binprefix}-av-auto
 164         with_test_prefix "AltiVec ABI, auto" {
 165             altivec_abi_tests "additional_flags=-maltivec additional_flags=-mabi=altivec" "auto"
 166         }
 167     }
 168 } elseif [test_compiler_info xlc*] {
 169     altivec_abi_tests "additional_flags=-qaltivec" "auto"
 170 } else {
 171     warning "unknown compiler"
 172     return -1
 173 }