22355c9080
The read_frame_register_value function as it was implemented introduced
a regression on big-endian targets. The problem appears when trying to
get the value of an entity stored inside a register, and when the size
of the entity is smaller than the size of the register. In that case,
we were always reading the first N bytes of the register, which is wrong
for big-endian architectures, where we need to read the last N bytes of
the register.
gdb/ChangeLog:
* findvar.c (read_frame_register_value): Read correct bytes from
register on big-endian architectures.
gdb/testsuite/ChangeLog:
* gdb.ada/small_reg_param: New testcase.
46 lines
1.5 KiB
Text
46 lines
1.5 KiB
Text
# Copyright 2011 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 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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load_lib "ada.exp"
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set testdir "small_reg_param"
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set testfile "${testdir}/foo"
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set srcfile ${srcdir}/${subdir}/${testfile}.adb
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set binfile ${objdir}/${subdir}/${testfile}
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file mkdir ${objdir}/${subdir}/${testdir}
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if {[gdb_compile_ada "${srcfile}" "${binfile}" executable [list debug optimize=-O1]] != "" } {
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return -1
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}
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clean_restart ${testfile}
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if ![runto main] then {
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perror "Couldn't run ${testfile}"
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return
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}
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gdb_breakpoint "call_me"
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# Continue until we hit the breakpoint inside `Call_Me'. We verify
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# that the parameter value is correct.
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gdb_test "continue" \
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"Breakpoint .*, pck\\.call_me \\(w=50\\) at .*/pck.adb:.*" \
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"continue to call_me"
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# And just to make sure, we also verify that the parameter value
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# is correct when we print it manually.
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gdb_test "print w" " = 50"
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