altivec-abi.exp

这个是LINUX下的GDB调度工具的源码

# Copyright (C) 2002, 2003 Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# Please email any bugs, comments, and/or additions to this file to:
# [e-mail]
#

# Tests for Powerpc AltiVec ABI


if $tracelevel then {
    strace $tracelevel
}

#
# This file uses altivec-abi.c for input.
#

set prms_id 0
set bug_id 0

if ![istarget "powerpc-*altivec"] then {
    verbose "Skipping altivec abi tests."
    return
}

set testfile "altivec-abi"
set binfile ${objdir}/${subdir}/${testfile}
set srcfile ${testfile}.c

if  { [gdb_compile ${srcdir}/${subdir}/${srcfile} ${binfile} executable {debug additional_flags=-w}] != "" } {
     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
}

gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}

#
# Run to `main' where we begin our tests.
#

if ![runto_main] then {
    gdb_suppress_tests
}

gdb_test "b marker" "Breakpoint 2 at.*file.*altivec-abi.c, line \[0-9\]+." "break marker"
gdb_test "continue" "Breakpoint 2.*marker.*altivec-abi.c.*" "continue to marker"
gdb_test "finish" "Run till exit from .0.*in marker.*at.*altivec-abi.c.*main \\(\\) at.*altivec-abi.c.*result = vec_func \\(vshort,.*goes in v2.*" "back to main (1)"

# now all the arguments of vec_fun are initialized

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=.abcdefghilmnopqr., vuchar_f=.ABCDEFGHILMNOPQR., 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=.vector of chars.., 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.."

set pattern1 $pattern
append pattern1 " at.*altivec-abi.c.*vint_res  = vec_add.*vint_f, intv_on_stack_f.;"

# Now let's call the function.  This function has > 12 args,
# the last one will go on the stack.
gdb_test "p vec_func(vshort,vushort,vint,vuint,vchar,vuchar,vfloat,x,y,a,b,c,intv_on_stack)" \
".\[0-9\]+ = .2, 2, 2, 2." "call inferior function with vectors (1) "

# Let's call the function again with dummy arguments.  This is to clean
# up the contents of the vector registers before the next call.
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)" \
".\[0-9\]+ = .0, 0, 0, 0." "call inferior function with vectors (2) "

# Let's step into the function, to see if the args are printed correctly.
gdb_test "step" \
  $pattern1 \
  "step into vec_fun"

set pattern2 $pattern
append pattern2 " at.*altivec-abi.c.*in main.*result = vec_func .vshort,.*goes in v2.*Value returned is.*= .2, 2, 2, 2."

# Let's see if the result is returned correctly.
gdb_test "finish" \
  "Run till exit from .0.*$pattern2" \
  "vector value returned correctly"

# can we print the args correctly for this function?
gdb_test "break struct_of_vector_func" "" ""

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.*"

gdb_test "continue" \
  "Breakpoint 3, $pattern.*vector_struct.vshort1 = vec_add .vector_struct.vshort1, vector_struct.vshort2.;" \
  "continue to struct_of_vector_func"

gdb_test "finish" \
  "Run till exit from .0  $pattern\[ \r\n\]+main.*altivec-abi.c.*array_of_vector_func.*" \
  "back to main (2)"

gdb_test "step" "" "step into array_of_vector_func"
gdb_test "p matrix\[0\]" ".*= .1, 2, 3, 4, 5, 6, 7, 8." "print first vector"
gdb_test "p matrix\[1\]" ".*= .11, 12, 13, 14, 15, 16, 17, 18." "print second vector"
gdb_test "p matrix\[2\]" ".*= .21, 22, 23, 24, 25, 26, 27, 28." "print third vector"
gdb_test "p matrix\[3\]" ".*= .31, 32, 33, 34, 35, 36, 37, 38." "print fourth vector"