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openSUSE:Leap:42.3:Staging:A
gdb
gdb-6.3-bz140532-ppc-unwinding-test.patch
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File gdb-6.3-bz140532-ppc-unwinding-test.patch of Package gdb
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 --- gdb-6.3-unpatched/gdb/testsuite/gdb.arch/powerpc-bcl-prologue-asm32.S 1969-12-31 19:00:00.000000000 -0500 +++ gdb-6.3/gdb/testsuite/gdb.arch/powerpc-bcl-prologue-asm32.S 2007-08-02 13:23:10.000000000 -0400 @@ -0,0 +1,78 @@ +/* This testcase is part of GDB, the GNU debugger. + + Copyright 2007 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. */ + + .section ".text" + .align 2 + .globl func0 + .type func0, @function +func0: + stwu 1,-16(1) + mflr 0 + stw 31,12(1) + stw 0,20(1) + mr 31,1 + bl abort + .size func0, .-func0 + .align 2 + .globl func1 + .type func1, @function +func1: + stwu 1,-16(1) + mflr 0 +/* 20 = BO = branch always + 31 = BI = CR bit (ignored) */ + bcl 20,31,.Lpie +.Lpie: stw 31,12(1) + stw 0,20(1) + mr 31,1 + bl func0 + mr 0,3 + lis 9,var@ha + lwz 9,var@l(9) + add 0,0,9 + mr 3,0 + lwz 11,0(1) + lwz 0,4(11) + mtlr 0 + lwz 31,-4(11) + mr 1,11 + blr + .size func1, .-func1 + .section .note.GNU-stack,"",@progbits + .ident "GCC: (GNU) 3.4.6 20060404 (Red Hat 3.4.6-8)" + +/* Original source file: + +#include <stdlib.h> + +extern volatile int var; + +int func0 (void) __attribute__((__noinline__)); +int func0 (void) +{ + abort (); + return var; +} + +int func1 (void) __attribute__((__noinline__)); +int func1 (void) +{ + return func0 () + var; +} + +*/ 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 --- gdb-6.3-unpatched/gdb/testsuite/gdb.arch/powerpc-bcl-prologue-asm64.S 1969-12-31 19:00:00.000000000 -0500 +++ gdb-6.3/gdb/testsuite/gdb.arch/powerpc-bcl-prologue-asm64.S 2007-08-02 14:28:56.000000000 -0400 @@ -0,0 +1,98 @@ +/* This testcase is part of GDB, the GNU debugger. + + Copyright 2007 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. */ + + .section ".toc","aw" + .section ".text" + .align 2 + .globl func0 + .section ".opd","aw" + .align 3 +func0: + .quad .L.func0,.TOC.@tocbase + .previous + .type func0, @function +.L.func0: + mflr 0 + std 31,-8(1) + std 0,16(1) + stdu 1,-128(1) + mr 31,1 + bl abort + nop + .long 0 + .byte 0,0,0,1,128,1,0,1 + .size func0,.-.L.func0 + .section ".toc","aw" +.LC1: + .tc var[TC],var + .section ".text" + .align 2 + .globl func1 + .section ".opd","aw" + .align 3 +func1: + .quad .L.func1,.TOC.@tocbase + .previous + .type func1, @function +.L.func1: + mflr 0 +/* 20 = BO = branch always + 31 = BI = CR bit (ignored) */ + bcl 20,31,.Lpie +.Lpie: std 31,-8(1) + std 0,16(1) + stdu 1,-128(1) + mr 31,1 + bl func0 + mr 11,3 + ld 9,.LC1@toc(2) + lwz 0,0(9) + add 0,11,0 + extsw 0,0 + mr 3,0 + ld 1,0(1) + ld 0,16(1) + mtlr 0 + ld 31,-8(1) + blr + .long 0 + .byte 0,0,0,1,128,1,0,1 + .size func1,.-.L.func1 + .section .note.GNU-stack,"",@progbits + .ident "GCC: (GNU) 3.4.6 20060404 (Red Hat 3.4.6-8)" + +/* Original source file: + +#include <stdlib.h> + +extern volatile int var; + +int func0 (void) __attribute__((__noinline__)); +int func0 (void) +{ + abort (); + return var; +} + +int func1 (void) __attribute__((__noinline__)); +int func1 (void) +{ + return func0 () + var; +} + +*/ 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 --- gdb-6.3-unpatched/gdb/testsuite/gdb.arch/powerpc-bcl-prologue.c 1969-12-31 19:00:00.000000000 -0500 +++ gdb-6.3/gdb/testsuite/gdb.arch/powerpc-bcl-prologue.c 2007-08-02 13:25:10.000000000 -0400 @@ -0,0 +1,29 @@ +/* This testcase is part of GDB, the GNU debugger. + + Copyright 2007 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. */ + +/* Force `-fpie' double jump bl->blrl. */ +/* No longer used. */ +volatile int var; + +extern int func1 (void); + +int main (void) +{ + func1 (); + return 0; +} 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 --- gdb-6.3-unpatched/gdb/testsuite/gdb.arch/powerpc-bcl-prologue.exp 1969-12-31 19:00:00.000000000 -0500 +++ gdb-6.3/gdb/testsuite/gdb.arch/powerpc-bcl-prologue.exp 2007-08-02 14:21:29.000000000 -0400 @@ -0,0 +1,72 @@ +# Copyright 2006, 2007 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. + +# Test unwinding fixes of the PPC platform, specifically on the coping with BCL +# jump of the PIE code. + +if ![istarget "powerpc*-*-linux*"] then { + verbose "Skipping powerpc-linux prologue tests." + return +} + +set testfile "powerpc-bcl-prologue" +set srcfile1 ${testfile}.c +set flags "debug" +if [istarget "powerpc-*"] then { + set srcfile2 ${testfile}-asm32.S + set flags "$flags additional_flags=-m32" +} elseif [istarget "powerpc64-*"] then { + set srcfile2 ${testfile}-asm64.S + set flags "$flags additional_flags=-m64" +} else { + fail "powerpc arch test" + return +} +set objfile2 [standard_output_file ${testfile}-asm.o] +set binfile [standard_output_file ${testfile}] + +if { [gdb_compile "${srcdir}/${subdir}/${srcfile1} ${srcdir}/${subdir}/${srcfile2}" ${binfile} executable $flags] != ""} { + return -1 +} + +gdb_exit +gdb_start +gdb_reinitialize_dir $srcdir/$subdir +gdb_load ${binfile} + +# We should stop in abort(3). + +gdb_run_cmd + +gdb_test_multiple {} "continue to abort()" { + -re ".*Program received signal SIGABRT,.*$gdb_prompt $" { + pass "continue to abort()" + } +} + +# Check backtrace: +# #3 0x0804835f in func0 () +# #4 0x0804836a in func1 () +# #5 0x0804838c in main () +# (gdb) +# `\\.?' prefixes are needed for ppc64 without `debug' (another bug). + +set test "matching unwind" +gdb_test_multiple "backtrace" $test { + -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 $" { + pass $test + } +} Fixup the testcase for ppc64 biarch GDB. --- ./gdb/testsuite/gdb.arch/powerpc-prologue.exp 2008-01-13 13:32:19.000000000 +0100 +++ ./gdb/testsuite/gdb.arch/powerpc-prologue.exp 2008-01-02 00:04:10.000000000 +0100 @@ -17,8 +17,9 @@ # Test PowerPC prologue analyzer. # Do not run on AIX (where we won't be able to build the tests without -# some surgery) or on PowerPC64 (ditto, dot symbols). -if {[istarget *-*-aix*] || ![istarget "powerpc-*-*"]} then { +# some surgery). PowerPC64 target would break due to dot symbols but we build +# there PowerPC32 inferior. +if {[istarget *-*-aix*] || ![istarget "powerpc*-*-*"]} then { verbose "Skipping PowerPC prologue tests." return }
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