gdb/patches/gdb-6.3-bz140532-ppc-unwinding-test.patch

   1 diff -u -ruNp gdb-6.3-unpatched/gdb/testsuite/gdb.arch/powerpc-bcl-prologue-asm32.S gdb-6.3/gdb/testsuite/gdb.arch/powerpc-bcl-prologue-asm32.S
   2 --- gdb-6.3-unpatched/gdb/testsuite/gdb.arch/powerpc-bcl-prologue-asm32.S       1969-12-31 19:00:00.000000000 -0500
   3 +++ gdb-6.3/gdb/testsuite/gdb.arch/powerpc-bcl-prologue-asm32.S 2007-08-02 13:23:10.000000000 -0400
   4 @@ -0,0 +1,78 @@
   5 +/* This testcase is part of GDB, the GNU debugger.
   6 +
   7 +   Copyright 2007 Free Software Foundation, Inc.
   8 +
   9 +   This program is free software; you can redistribute it and/or modify
  10 +   it under the terms of the GNU General Public License as published by
  11 +   the Free Software Foundation; either version 2 of the License, or
  12 +   (at your option) any later version.
  13 +
  14 +   This program is distributed in the hope that it will be useful,
  15 +   but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 +   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 +   GNU General Public License for more details.
  18 +
  19 +   You should have received a copy of the GNU General Public License
  20 +   along with this program; if not, write to the Free Software
  21 +   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
  22 +
  23 +       .section        ".text"
  24 +       .align 2
  25 +       .globl func0
  26 +       .type   func0, @function
  27 +func0:
  28 +       stwu 1,-16(1)
  29 +       mflr 0
  30 +       stw 31,12(1)
  31 +       stw 0,20(1)
  32 +       mr 31,1
  33 +       bl abort
  34 +       .size   func0, .-func0
  35 +       .align 2
  36 +       .globl func1
  37 +       .type   func1, @function
  38 +func1:
  39 +       stwu 1,-16(1)
  40 +       mflr 0
  41 +/* 20 = BO = branch always
  42 +   31 = BI = CR bit (ignored)  */
  43 +       bcl 20,31,.Lpie
  44 +.Lpie: stw 31,12(1)
  45 +       stw 0,20(1)
  46 +       mr 31,1
  47 +       bl func0
  48 +       mr 0,3
  49 +       lis 9,var@ha
  50 +       lwz 9,var@l(9)
  51 +       add 0,0,9
  52 +       mr 3,0
  53 +       lwz 11,0(1)
  54 +       lwz 0,4(11)
  55 +       mtlr 0
  56 +       lwz 31,-4(11)
  57 +       mr 1,11
  58 +       blr
  59 +       .size   func1, .-func1
  60 +       .section        .note.GNU-stack,"",@progbits
  61 +       .ident  "GCC: (GNU) 3.4.6 20060404 (Red Hat 3.4.6-8)"
  62 +
  63 +/* Original source file:
  64 +
  65 +#include <stdlib.h>
  66 +
  67 +extern volatile int var;
  68 +
  69 +int func0 (void) __attribute__((__noinline__));
  70 +int func0 (void)
  71 +{
  72 +  abort ();
  73 +  return var;
  74 +}
  75 +
  76 +int func1 (void) __attribute__((__noinline__));
  77 +int func1 (void)
  78 +{
  79 +  return func0 () + var;
  80 +}
  81 +
  82 +*/
  83 diff -u -ruNp gdb-6.3-unpatched/gdb/testsuite/gdb.arch/powerpc-bcl-prologue-asm64.S gdb-6.3/gdb/testsuite/gdb.arch/powerpc-bcl-prologue-asm64.S
  84 --- gdb-6.3-unpatched/gdb/testsuite/gdb.arch/powerpc-bcl-prologue-asm64.S       1969-12-31 19:00:00.000000000 -0500
  85 +++ gdb-6.3/gdb/testsuite/gdb.arch/powerpc-bcl-prologue-asm64.S 2007-08-02 14:28:56.000000000 -0400
  86 @@ -0,0 +1,98 @@
  87 +/* This testcase is part of GDB, the GNU debugger.
  88 +
  89 +   Copyright 2007 Free Software Foundation, Inc.
  90 +
  91 +   This program is free software; you can redistribute it and/or modify
  92 +   it under the terms of the GNU General Public License as published by
  93 +   the Free Software Foundation; either version 2 of the License, or
  94 +   (at your option) any later version.
  95 +
  96 +   This program is distributed in the hope that it will be useful,
  97 +   but WITHOUT ANY WARRANTY; without even the implied warranty of
  98 +   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  99 +   GNU General Public License for more details.
 100 +
 101 +   You should have received a copy of the GNU General Public License
 102 +   along with this program; if not, write to the Free Software
 103 +   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
 104 +
 105 +       .section        ".toc","aw"
 106 +       .section        ".text"
 107 +       .align 2
 108 +       .globl func0
 109 +       .section        ".opd","aw"
 110 +       .align 3
 111 +func0:
 112 +       .quad   .L.func0,.TOC.@tocbase
 113 +       .previous
 114 +       .type   func0, @function
 115 +.L.func0:
 116 +       mflr 0
 117 +       std 31,-8(1)
 118 +       std 0,16(1)
 119 +       stdu 1,-128(1)
 120 +       mr 31,1
 121 +       bl abort
 122 +       nop
 123 +       .long 0
 124 +       .byte 0,0,0,1,128,1,0,1
 125 +       .size   func0,.-.L.func0
 126 +       .section        ".toc","aw"
 127 +.LC1:
 128 +       .tc var[TC],var
 129 +       .section        ".text"
 130 +       .align 2
 131 +       .globl func1
 132 +       .section        ".opd","aw"
 133 +       .align 3
 134 +func1:
 135 +       .quad   .L.func1,.TOC.@tocbase
 136 +       .previous
 137 +       .type   func1, @function
 138 +.L.func1:
 139 +       mflr 0
 140 +/* 20 = BO = branch always
 141 +   31 = BI = CR bit (ignored)  */
 142 +       bcl 20,31,.Lpie
 143 +.Lpie: std 31,-8(1)
 144 +       std 0,16(1)
 145 +       stdu 1,-128(1)
 146 +       mr 31,1
 147 +       bl func0
 148 +       mr 11,3
 149 +       ld 9,.LC1@toc(2)
 150 +       lwz 0,0(9)
 151 +       add 0,11,0
 152 +       extsw 0,0
 153 +       mr 3,0
 154 +       ld 1,0(1)
 155 +       ld 0,16(1)
 156 +       mtlr 0
 157 +       ld 31,-8(1)
 158 +       blr
 159 +       .long 0
 160 +       .byte 0,0,0,1,128,1,0,1
 161 +       .size   func1,.-.L.func1
 162 +       .section        .note.GNU-stack,"",@progbits
 163 +       .ident  "GCC: (GNU) 3.4.6 20060404 (Red Hat 3.4.6-8)"
 164 +
 165 +/* Original source file:
 166 +
 167 +#include <stdlib.h>
 168 +
 169 +extern volatile int var;
 170 +
 171 +int func0 (void) __attribute__((__noinline__));
 172 +int func0 (void)
 173 +{
 174 +  abort ();
 175 +  return var;
 176 +}
 177 +
 178 +int func1 (void) __attribute__((__noinline__));
 179 +int func1 (void)
 180 +{
 181 +  return func0 () + var;
 182 +}
 183 +
 184 +*/
 185 diff -u -ruNp gdb-6.3-unpatched/gdb/testsuite/gdb.arch/powerpc-bcl-prologue.c gdb-6.3/gdb/testsuite/gdb.arch/powerpc-bcl-prologue.c
 186 --- gdb-6.3-unpatched/gdb/testsuite/gdb.arch/powerpc-bcl-prologue.c     1969-12-31 19:00:00.000000000 -0500
 187 +++ gdb-6.3/gdb/testsuite/gdb.arch/powerpc-bcl-prologue.c       2007-08-02 13:25:10.000000000 -0400
 188 @@ -0,0 +1,29 @@
 189 +/* This testcase is part of GDB, the GNU debugger.
 190 +
 191 +   Copyright 2007 Free Software Foundation, Inc.
 192 +
 193 +   This program is free software; you can redistribute it and/or modify
 194 +   it under the terms of the GNU General Public License as published by
 195 +   the Free Software Foundation; either version 2 of the License, or
 196 +   (at your option) any later version.
 197 +
 198 +   This program is distributed in the hope that it will be useful,
 199 +   but WITHOUT ANY WARRANTY; without even the implied warranty of
 200 +   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 201 +   GNU General Public License for more details.
 202 +
 203 +   You should have received a copy of the GNU General Public License
 204 +   along with this program; if not, write to the Free Software
 205 +   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
 206 +
 207 +/* Force `-fpie' double jump bl->blrl.  */
 208 +/* No longer used.  */
 209 +volatile int var;
 210 +
 211 +extern int func1 (void);
 212 +
 213 +int main (void)
 214 +{
 215 +  func1 ();
 216 +  return 0;
 217 +}
 218 diff -u -ruNp gdb-6.3-unpatched/gdb/testsuite/gdb.arch/powerpc-bcl-prologue.exp gdb-6.3/gdb/testsuite/gdb.arch/powerpc-bcl-prologue.exp
 219 --- gdb-6.3-unpatched/gdb/testsuite/gdb.arch/powerpc-bcl-prologue.exp   1969-12-31 19:00:00.000000000 -0500
 220 +++ gdb-6.3/gdb/testsuite/gdb.arch/powerpc-bcl-prologue.exp     2007-08-02 14:21:29.000000000 -0400
 221 @@ -0,0 +1,72 @@
 222 +#   Copyright 2006, 2007 Free Software Foundation, Inc.
 223 +
 224 +# This program is free software; you can redistribute it and/or modify
 225 +# it under the terms of the GNU General Public License as published by
 226 +# the Free Software Foundation; either version 2 of the License, or
 227 +# (at your option) any later version.
 228 +#
 229 +# This program is distributed in the hope that it will be useful,
 230 +# but WITHOUT ANY WARRANTY; without even the implied warranty of
 231 +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 232 +# GNU General Public License for more details.
 233 +#
 234 +# You should have received a copy of the GNU General Public License
 235 +# along with this program; if not, write to the Free Software
 236 +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 237 +
 238 +# Test unwinding fixes of the PPC platform, specifically on the coping with BCL
 239 +# jump of the PIE code.
 240 +
 241 +if ![istarget "powerpc*-*-linux*"] then {
 242 +    verbose "Skipping powerpc-linux prologue tests."
 243 +    return
 244 +}
 245 +
 246 +set testfile "powerpc-bcl-prologue"
 247 +set srcfile1 ${testfile}.c
 248 +set flags "debug"
 249 +if [istarget "powerpc-*"] then {
 250 +    set srcfile2 ${testfile}-asm32.S
 251 +    set flags "$flags additional_flags=-m32"
 252 +} elseif [istarget "powerpc64-*"] then {
 253 +    set srcfile2 ${testfile}-asm64.S
 254 +    set flags "$flags additional_flags=-m64"
 255 +} else {
 256 +   fail "powerpc arch test"
 257 +   return
 258 +}
 259 +set objfile2 ${objdir}/${subdir}/${testfile}-asm.o
 260 +set binfile ${objdir}/${subdir}/${testfile}
 261 +
 262 +if { [gdb_compile "${srcdir}/${subdir}/${srcfile1} ${srcdir}/${subdir}/${srcfile2}" ${binfile} executable $flags] != ""} {
 263 +    return -1
 264 +}
 265 +
 266 +gdb_exit
 267 +gdb_start
 268 +gdb_reinitialize_dir $srcdir/$subdir
 269 +gdb_load ${binfile}
 270 +
 271 +# We should stop in abort(3).
 272 +
 273 +gdb_run_cmd
 274 +
 275 +gdb_test_multiple {} "continue to abort()" {
 276 +    -re ".*Program received signal SIGABRT,.*$gdb_prompt $" {
 277 +       pass "continue to abort()"
 278 +    }
 279 +}
 280 +
 281 +# Check backtrace:
 282 +# #3  0x0804835f in func0 ()
 283 +# #4  0x0804836a in func1 ()
 284 +# #5  0x0804838c in main ()
 285 +# (gdb)
 286 +# `\\.?' prefixes are needed for ppc64 without `debug' (another bug).
 287 +
 288 +set test "matching unwind"
 289 +gdb_test_multiple "backtrace" $test {
 290 +    -re "\r\n#\[0-9\]\[^\r\n\]* in \\.?func0 \\(\[^\r\n\]*\r\n#\[0-9\]\[^\r\n\]* in \\.?func1 \\(\[^\r\n\]*\r\n#\[0-9\]\[^\r\n\]* in \\.?main \\(\[^\r\n\]*\r\n$gdb_prompt $" {
 291 +       pass $test
 292 +    }
 293 +}
 294
 295 Fixup the testcase for ppc64 biarch GDB.
 296
 297 --- ./gdb/testsuite/gdb.arch/powerpc-prologue.exp       2008-01-13 13:32:19.000000000 +0100
 298 +++ ./gdb/testsuite/gdb.arch/powerpc-prologue.exp       2008-01-02 00:04:10.000000000 +0100
 299 @@ -17,8 +17,9 @@
 300  # Test PowerPC prologue analyzer.
 301
 302  # Do not run on AIX (where we won't be able to build the tests without
 303 -# some surgery) or on PowerPC64 (ditto, dot symbols).
 304 -if {[istarget *-*-aix*] || ![istarget "powerpc-*-*"]} then {
 305 +# some surgery).  PowerPC64 target would break due to dot symbols but we build
 306 +# there PowerPC32 inferior.
 307 +if {[istarget *-*-aix*] || ![istarget "powerpc*-*-*"]} then {
 308      verbose "Skipping PowerPC prologue tests."
 309      return
 310  }