summaryrefslogtreecommitdiff
path: root/gdb/testsuite/lib/cell.exp
blob: 9c8426294e01bafdb494d5f8a455c82f09d7ffbf (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
# Copyright 2009, 2010 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 3 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, see <http://www.gnu.org/licenses/>.
#
# Contributed by Markus Deuling <deuling@de.ibm.com>.
#
# Support library for testing the combined debugger for Linux
# on the Cell Broadband Engine.

# Compile SPU objects.
proc gdb_compile_cell_spu {source dest type options} {
  global board

  # Save and unset multilib flags; these are not appropriate
  # for the SPU compiler.
  set board [target_info name]
  set save_multilib_flag [board_info $board multilib_flags]
  unset_board_info "multilib_flags"

  set options_spu [concat $options [list compiler=spu-gcc]]
  set ccout [gdb_compile $source $dest $type $options_spu]

  set_board_info multilib_flags $save_multilib_flag
  return $ccout
}

# Compile PPU objects.  This is just like gdb_compile_pthreads, except that we
# always add the libspe2 library for compiling Cell/B.E. programs.
proc gdb_compile_cell_ppu {source dest type options} {
    # We do not need to try multiple names for the pthread library
    # -lpthread works on all Cell/B.E. systems
    set lib "-lspe2 -lpthread"
    set options_ppu [concat $options [list libs=$lib]]
    return [gdb_compile $source $dest $type $options_ppu]
}

# Embed SPU executable into a PPU object.
proc gdb_cell_embedspu {source dest options} {
    global CC_FOR_TARGET

    if [info exists CC_FOR_TARGET] {
        set compiler $CC_FOR_TARGET
    } else {
	set compiler [board_info [target_info name] compiler]
    }

    # We assume the PPU compiler is called gcc or ppu-gcc,
    # and find the appropriate embedspu based on that.
    regsub gcc "$compiler" embedspu embedspu

    # Determine default embedded symbol name from source filename.
    set path [split "$source" /]
    set filename [lindex $path [expr [llength $path] - 1]]
    regsub -all -- "\[-\.\]" "$filename" "_" symbol

    set options_embed [concat $options [list compiler=$embedspu]]
    return [gdb_compile "$symbol $source $dest" "" none $options_embed]
}

# Run a test on the target to see if it supports Cell/B.E. hardware.
# Return 0 if so, 1 if it does not.
proc skip_cell_tests {} {
    global skip_cell_tests_saved
    global srcdir subdir gdb_prompt

    # Use the cached value, if it exists.
    set me "skip_cell_tests"
    if [info exists skip_cell_tests_saved] {
        verbose "$me:  returning saved $skip_cell_tests_saved" 2
        return $skip_cell_tests_saved
    }

    # Set up, compile, and execute a combined Cell/B.E. test program.
    # Include the current process ID in the file names to prevent conflicts
    # with invocations for multiple testsuites.
    set src cell[pid].c
    set exe cell[pid].x
    set src_spu cell[pid]-spu.c
    set exe_spu cell[pid]-spu.x

    set f [open $src "w"]
    puts $f "#include <libspe2.h>"
    puts $f "extern spe_program_handle_t cell[pid]_spu_x;"
    puts $f "int main (void) {"
    puts $f "unsigned int entry = SPE_DEFAULT_ENTRY;"
    puts $f "spe_context_ptr_t ctx = spe_context_create (0, NULL);"
    puts $f "spe_program_load (ctx, &cell[pid]_spu_x);"
    puts $f "return spe_context_run (ctx, &entry, 0, NULL, NULL, NULL); }"
    close $f

    set f [open $src_spu "w"]
    puts $f "int main (void) { return 0; }"
    close $f

    verbose "$me:  compiling testfile $src" 2
    set compile_flags {debug nowarnings quiet}

    set skip 0
    if { [gdb_compile_cell_spu $src_spu $exe_spu executable $compile_flags] != "" } {
        verbose "$me:  compiling spu binary failed, returning 1" 2
	set skip 1
    }
    if { ! $skip && [gdb_cell_embedspu $exe_spu $exe_spu-embed.o $compile_flags]  != "" } {
        verbose "$me:  embedding spu binary failed, returning 1" 2
	set skip 1
    }
    if { ! $skip && [gdb_compile_cell_ppu [list $src $exe_spu-embed.o] $exe executable $compile_flags] != "" } {
        verbose "$me:  compiling ppu binary failed, returning 1" 2
	set skip 1
    }
    file delete $src
    file delete $src_spu
    file delete $exe_spu
    file delete $exe_spu-embed.o

    if { $skip } {
        return [set skip_cell_tests_saved 1]
    }

    # Compilation succeeded so now run it via gdb.

    gdb_exit
    gdb_start
    gdb_reinitialize_dir $srcdir/$subdir
    gdb_load "$exe"
    gdb_run_cmd
    gdb_expect {
        -re ".*Program exited normally.*${gdb_prompt} $" {
            verbose -log "\n$me: Cell/B.E. hardware detected"
            set skip_cell_tests_saved 0
        }
        -re ".*Program exited with code.*${gdb_prompt} $" {
            verbose -log "\n$me: Cell/B.E. hardware not detected"
            set skip_cell_tests_saved 1
        }
        default {
            verbose -log "\n$me Cell/B.E. hardware not detected (default case)"
            set skip_cell_tests_saved 1
        }
    }
    gdb_exit
    remote_file build delete $exe

    verbose "$me:  returning $skip_cell_tests_saved" 2
    return $skip_cell_tests_saved
}

# Delete all breakpoints and stop on the next new SPU thread
proc cont_spu_main { } {
  delete_breakpoints
  gdb_test "set spu stop-on-load on"
  gdb_test "continue" \
           "Continuing.*Temporary breakpoint .*main .*" \
           "continue to SPU main"
}

# Continue to MARKER
proc c_to { marker srcfile } {
  set line [gdb_get_line_number $marker $srcfile]
  gdb_test "break $line" \
	   "Breakpoint.*at.*file.*$srcfile.*line $line.*" \
	   "break $line"
  gdb_test "continue" \
	   "Continuing.*Breakpoint.*at.*$srcfile.*$line.*" \
	   "continue to $line"
}

# Check if the current thread has SPU architecture
proc check_spu_arch { msg } {
  if { $msg == "" } {
    set msg "spu architecture is spu256K"
  }
  gdb_test "show architecture" \
	   "The target architecture is set automatically.*currently spu:256K.*" \
	   $msg
}