321 lines
8.9 KiB
Diff
321 lines
8.9 KiB
Diff
From FEDORA_PATCHES Mon Sep 17 00:00:00 2001
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From: Fedora GDB patches <invalid@email.com>
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Date: Fri, 27 Oct 2017 21:07:50 +0200
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Subject: gdb-6.3-bz140532-ppc-unwinding-test.patch
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;; Update PPC unwinding patches to their upstream variants (BZ 140532).
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;;=fedoratest
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diff --git a/gdb/testsuite/gdb.arch/powerpc-bcl-prologue-asm32.S b/gdb/testsuite/gdb.arch/powerpc-bcl-prologue-asm32.S
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new file mode 100644
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--- /dev/null
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+++ b/gdb/testsuite/gdb.arch/powerpc-bcl-prologue-asm32.S
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@@ -0,0 +1,78 @@
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+/* This testcase is part of GDB, the GNU debugger.
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+
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+ Copyright 2007 Free Software Foundation, Inc.
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+
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+ This program is free software; you can redistribute it and/or modify
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+ it under the terms of the GNU General Public License as published by
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+ the Free Software Foundation; either version 2 of the License, or
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+ (at your option) any later version.
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+
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+ This program is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ GNU General Public License for more details.
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+
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+ You should have received a copy of the GNU General Public License
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+ along with this program; if not, write to the Free Software
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+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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+
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+ .section ".text"
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+ .align 2
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+ .globl func0
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+ .type func0, @function
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+func0:
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+ stwu 1,-16(1)
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+ mflr 0
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+ stw 31,12(1)
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+ stw 0,20(1)
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+ mr 31,1
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+ bl abort
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+ .size func0, .-func0
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+ .align 2
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+ .globl func1
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+ .type func1, @function
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+func1:
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+ stwu 1,-16(1)
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+ mflr 0
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+/* 20 = BO = branch always
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+ 31 = BI = CR bit (ignored) */
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+ bcl 20,31,.Lpie
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+.Lpie: stw 31,12(1)
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+ stw 0,20(1)
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+ mr 31,1
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+ bl func0
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+ mr 0,3
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+ lis 9,var@ha
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+ lwz 9,var@l(9)
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+ add 0,0,9
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+ mr 3,0
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+ lwz 11,0(1)
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+ lwz 0,4(11)
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+ mtlr 0
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+ lwz 31,-4(11)
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+ mr 1,11
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+ blr
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+ .size func1, .-func1
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+ .section .note.GNU-stack,"",@progbits
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+ .ident "GCC: (GNU) 3.4.6 20060404 (Red Hat 3.4.6-8)"
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+
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+/* Original source file:
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+
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+#include <stdlib.h>
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+
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+extern volatile int var;
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+
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+int func0 (void) __attribute__((__noinline__));
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+int func0 (void)
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+{
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+ abort ();
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+ return var;
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+}
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+
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+int func1 (void) __attribute__((__noinline__));
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+int func1 (void)
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+{
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+ return func0 () + var;
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+}
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+
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+*/
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diff --git a/gdb/testsuite/gdb.arch/powerpc-bcl-prologue-asm64.S b/gdb/testsuite/gdb.arch/powerpc-bcl-prologue-asm64.S
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new file mode 100644
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--- /dev/null
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+++ b/gdb/testsuite/gdb.arch/powerpc-bcl-prologue-asm64.S
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@@ -0,0 +1,98 @@
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+/* This testcase is part of GDB, the GNU debugger.
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+
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+ Copyright 2007 Free Software Foundation, Inc.
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+
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+ This program is free software; you can redistribute it and/or modify
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+ it under the terms of the GNU General Public License as published by
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+ the Free Software Foundation; either version 2 of the License, or
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+ (at your option) any later version.
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+
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+ This program is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ GNU General Public License for more details.
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+
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+ You should have received a copy of the GNU General Public License
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+ along with this program; if not, write to the Free Software
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+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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+
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+ .section ".toc","aw"
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+ .section ".text"
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+ .align 2
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+ .globl func0
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+ .section ".opd","aw"
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+ .align 3
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+func0:
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+ .quad .L.func0,.TOC.@tocbase
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+ .previous
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+ .type func0, @function
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+.L.func0:
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+ mflr 0
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+ std 31,-8(1)
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+ std 0,16(1)
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+ stdu 1,-128(1)
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+ mr 31,1
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+ bl abort
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+ nop
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+ .long 0
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+ .byte 0,0,0,1,128,1,0,1
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+ .size func0,.-.L.func0
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+ .section ".toc","aw"
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+.LC1:
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+ .tc var[TC],var
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+ .section ".text"
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+ .align 2
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+ .globl func1
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+ .section ".opd","aw"
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+ .align 3
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+func1:
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+ .quad .L.func1,.TOC.@tocbase
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+ .previous
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+ .type func1, @function
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+.L.func1:
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+ mflr 0
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+/* 20 = BO = branch always
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+ 31 = BI = CR bit (ignored) */
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+ bcl 20,31,.Lpie
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+.Lpie: std 31,-8(1)
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+ std 0,16(1)
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+ stdu 1,-128(1)
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+ mr 31,1
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+ bl func0
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+ mr 11,3
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+ ld 9,.LC1@toc(2)
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+ lwz 0,0(9)
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+ add 0,11,0
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+ extsw 0,0
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+ mr 3,0
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+ ld 1,0(1)
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+ ld 0,16(1)
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+ mtlr 0
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+ ld 31,-8(1)
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+ blr
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+ .long 0
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+ .byte 0,0,0,1,128,1,0,1
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+ .size func1,.-.L.func1
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+ .section .note.GNU-stack,"",@progbits
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+ .ident "GCC: (GNU) 3.4.6 20060404 (Red Hat 3.4.6-8)"
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+
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+/* Original source file:
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+
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+#include <stdlib.h>
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+
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+extern volatile int var;
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+
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+int func0 (void) __attribute__((__noinline__));
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+int func0 (void)
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+{
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+ abort ();
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+ return var;
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+}
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+
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+int func1 (void) __attribute__((__noinline__));
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+int func1 (void)
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+{
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+ return func0 () + var;
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+}
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+
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+*/
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diff --git a/gdb/testsuite/gdb.arch/powerpc-bcl-prologue.c b/gdb/testsuite/gdb.arch/powerpc-bcl-prologue.c
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new file mode 100644
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--- /dev/null
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+++ b/gdb/testsuite/gdb.arch/powerpc-bcl-prologue.c
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@@ -0,0 +1,29 @@
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+/* This testcase is part of GDB, the GNU debugger.
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+
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+ Copyright 2007 Free Software Foundation, Inc.
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+
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+ This program is free software; you can redistribute it and/or modify
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+ it under the terms of the GNU General Public License as published by
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+ the Free Software Foundation; either version 2 of the License, or
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+ (at your option) any later version.
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+
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+ This program is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ GNU General Public License for more details.
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+
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+ You should have received a copy of the GNU General Public License
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+ along with this program; if not, write to the Free Software
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+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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+
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+/* Force `-fpie' double jump bl->blrl. */
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+/* No longer used. */
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+volatile int var;
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+
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+extern int func1 (void);
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+
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+int main (void)
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+{
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+ func1 ();
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+ return 0;
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+}
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diff --git a/gdb/testsuite/gdb.arch/powerpc-bcl-prologue.exp b/gdb/testsuite/gdb.arch/powerpc-bcl-prologue.exp
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new file mode 100644
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--- /dev/null
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+++ b/gdb/testsuite/gdb.arch/powerpc-bcl-prologue.exp
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@@ -0,0 +1,72 @@
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+# Copyright 2006, 2007 Free Software Foundation, Inc.
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+
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+# This program is free software; you can redistribute it and/or modify
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+# it under the terms of the GNU General Public License as published by
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+# the Free Software Foundation; either version 2 of the License, or
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+# (at your option) any later version.
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+#
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+# This program is distributed in the hope that it will be useful,
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+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+# GNU General Public License for more details.
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+#
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+# You should have received a copy of the GNU General Public License
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+# along with this program; if not, write to the Free Software
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+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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+
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+# Test unwinding fixes of the PPC platform, specifically on the coping with BCL
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+# jump of the PIE code.
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+
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+if ![istarget "powerpc*-*-linux*"] then {
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+ verbose "Skipping powerpc-linux prologue tests."
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+ return
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+}
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+
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+set testfile "powerpc-bcl-prologue"
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+set srcfile1 ${testfile}.c
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+set flags "debug"
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+if [istarget "powerpc-*"] then {
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+ set srcfile2 ${testfile}-asm32.S
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+ set flags "$flags additional_flags=-m32"
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+} elseif [istarget "powerpc64-*"] then {
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+ set srcfile2 ${testfile}-asm64.S
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+ set flags "$flags additional_flags=-m64"
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+} else {
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+ fail "powerpc arch test"
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+ return
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+}
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+set objfile2 [standard_output_file ${testfile}-asm.o]
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+set binfile [standard_output_file ${testfile}]
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+
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+if { [gdb_compile "${srcdir}/${subdir}/${srcfile1} ${srcdir}/${subdir}/${srcfile2}" ${binfile} executable $flags] != ""} {
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+ return -1
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+}
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+
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+gdb_exit
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+gdb_start
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+gdb_reinitialize_dir $srcdir/$subdir
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+gdb_load ${binfile}
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+
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+# We should stop in abort(3).
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+
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+gdb_run_cmd
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+
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+gdb_test_multiple {} "continue to abort()" {
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+ -re ".*Program received signal SIGABRT,.*$gdb_prompt $" {
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+ pass "continue to abort()"
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+ }
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+}
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+
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+# Check backtrace:
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+# #3 0x0804835f in func0 ()
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+# #4 0x0804836a in func1 ()
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+# #5 0x0804838c in main ()
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+# (gdb)
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+# `\\.?' prefixes are needed for ppc64 without `debug' (another bug).
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+
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+set test "matching unwind"
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+gdb_test_multiple "backtrace" $test {
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+ -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 $" {
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+ pass $test
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+ }
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+}
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diff --git a/gdb/testsuite/gdb.arch/powerpc-prologue.exp b/gdb/testsuite/gdb.arch/powerpc-prologue.exp
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--- a/gdb/testsuite/gdb.arch/powerpc-prologue.exp
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+++ b/gdb/testsuite/gdb.arch/powerpc-prologue.exp
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@@ -16,8 +16,9 @@
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# Test PowerPC prologue analyzer.
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# Do not run on AIX (where we won't be able to build the tests without
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-# some surgery) or on PowerPC64 (ditto, dot symbols).
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-if {[istarget *-*-aix*] || ![istarget "powerpc-*-*"]} then {
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+# some surgery). PowerPC64 target would break due to dot symbols but we build
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+# there PowerPC32 inferior.
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+if {[istarget *-*-aix*] || ![istarget "powerpc*-*-*"]} then {
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verbose "Skipping PowerPC prologue tests."
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return
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}
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