From 075beec08ae857d918890c30d290863abb3f7f57 Mon Sep 17 00:00:00 2001 From: Andreas Arnez Date: Tue, 14 Feb 2017 18:17:19 +0100 Subject: [PATCH] Big-endian targets: Fix implptrpiece.exp The test case implptrpiece.exp accesses the second byte of the short integer number 1 and expects it to be zero. This is valid for little-endian targets, but fails on big-endian targets. This is fixed by distinguishing the expected value by endianness. gdb/testsuite/ChangeLog: * gdb.dwarf2/implptrpiece.exp: Fix check for big-endian targets. --- gdb/testsuite/ChangeLog | 4 ++++ gdb/testsuite/gdb.dwarf2/implptrpiece.exp | 17 +++++++++++++++-- 2 files changed, 19 insertions(+), 2 deletions(-) diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index bd81ad2..a54eb67 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2017-02-14 Andreas Arnez + + * gdb.dwarf2/implptrpiece.exp: Fix check for big-endian targets. + 2017-02-13 Luis Machado * gdb.linespec/explicit.c (my_unique_function_name): New function. diff --git a/gdb/testsuite/gdb.dwarf2/implptrpiece.exp b/gdb/testsuite/gdb.dwarf2/implptrpiece.exp index af7dd37..ef483c0 100644 --- a/gdb/testsuite/gdb.dwarf2/implptrpiece.exp +++ b/gdb/testsuite/gdb.dwarf2/implptrpiece.exp @@ -80,7 +80,7 @@ Dwarf::assemble $asm_file { {name s} {type :$struct_label} {location { - const1u 1 + const2u 0x5678 stack_value piece 2 const1u 2 @@ -119,4 +119,17 @@ if ![runto_main] { return -1 } -gdb_test "print/d p\[-1\]" " = 0" +# Determine endianness. +set endian "little" +gdb_test_multiple "show endian" "determine endianness" { + -re ".* (big|little) endian.*$gdb_prompt $" { + set endian $expect_out(1,string) + pass "endianness: $endian" + } +} + +# Access the second byte of s through an implicit pointer to the third +# byte of s, using a negative offset. Compare that to the second byte of +# the short integer 0x5678 in target byte order. +switch $endian { little {set val 0x56} big {set val 0x78} } +gdb_test "p/x p\[-1\]" " = $val" -- 2.7.4