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07e5f5cf88
One of conditions in skip_prologue() was never visited if there was mflr instruction that moves the link register to a register different than r0. This condition expects non shifted value of `lr_reg`. Previously offset of link register was never saved for registers different than r0. gdb/ChangeLog: 2018-01-31 Nikola Prica <nikola.prica@rt-rk.com> * rs6000-tdep.c (skip_prologue): Remove shifting for lr_reg and assign shifted lr_reg to fdata->lr_register when lr_reg is set. gdb/testsuite/ChangeLog: 2018-01-31 Nikola Prica <nikola.prica@rt-rk.com> * gdb.arch/powerpc-prologue-frame.s: New file. * gdb.arch/powerpc-prologue-frame.c: Likewise. * gdb.arch/powerpc-prologue-frame.exp: Likewise.
42 lines
1.3 KiB
Plaintext
42 lines
1.3 KiB
Plaintext
# Copyright 2018 Free Software Foundation, Inc.
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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 3 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, see <http://www.gnu.org/licenses/>
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if {![istarget "powerpc-*-*"] } {
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verbose "Skipping powerpc back trace test."
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return
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}
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standard_testfile .c .S
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set binfile [standard_output_file ${testfile}]
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if {[gdb_compile \
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[list ${srcdir}/${subdir}/$srcfile ${srcdir}/${subdir}/$srcfile2] \
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"${binfile}" executable {}] != ""} {
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untested "failed to build $binfile"
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return -1
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}
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clean_restart ${binfile}
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if ![runto bar] {
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untested "could not run to bar"
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return -1
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}
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gdb_test "bt" \
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"#0\[ \t\]*$hex in bar.*\r\n#1\[ \t\]*$hex in foo.*\r\n#2\[ \t\]*$hex in main.*" \
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"Backtrace to the main frame"
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