Fix zero_ext documentation

[deliverable/binutils-gdb.git] / gdb / testsuite / gdb.base / prelink.exp

diff --git a/gdb/testsuite/gdb.base/prelink.exp b/gdb/testsuite/gdb.base/prelink.exp
index 4f6779fea62600c42aae754d52df528cfb45d935..63f8a5cf8f5d239cbc2495dffc753bccc6c65882 100644 (file)
--- a/gdb/testsuite/gdb.base/prelink.exp
+++ b/gdb/testsuite/gdb.base/prelink.exp
@@ -1,4 +1,4 @@
-# Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
+# Copyright 2006-2016 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
@@ -18,19 +18,12 @@
 
 # This file was written by Alexandre Oliva <aoliva@redhat.com>
 
-if $tracelevel then {
-       strace $tracelevel
-       }
 
-set prms_id 0
-set bug_id 0
-
-# are we on a target board
-if ![isnative] then {
+if { ![isnative] || [is_remote host] || [skip_shlib_tests]} {
     return
 }
 
-if [get_compiler_info "ignored"] {
+if [get_compiler_info] {
     return -1
 }
 
@@ -38,42 +31,48 @@ if {$gcc_compiled == 0} {
     return -1
 }
 
+load_lib prelink-support.exp
+
 set testfile "prelink"
 
 set libsrcfile ${testfile}-lib.c
-set libfile ${objdir}/${subdir}/${testfile}.so
-if { [gdb_compile "${srcdir}/${subdir}/${libsrcfile}" "${libfile}" executable [list debug "additional_flags=-fpic -shared -nodefaultlibs"]] != ""} {
+set libfile [standard_output_file ${testfile}.so]
+
+# Use -soname so that the new library gets copied by build_executable_own_libs.
+
+if { [gdb_compile_shlib "${srcdir}/${subdir}/${libsrcfile}" "${libfile}" [list debug "ldflags=-Wl,-soname,[file tail ${libfile}]"]] != ""} {
     # If creating the shared library fails, maybe we don't have the right tools
     return -1
 }
 
-# `--no-exec-shield' is for i386 where prelink in the exec-shield mode is
-# forced to push all the libraries tight together to fit into the first two
-# memory areas (either the ASCII Shield area or at least below the executable).
-# In this case its -R option cannot be applied and we falsely FAIL here as if
-# the system is already prelinked prelink has no choice how to randomize the
-# single new unprelinked library address without wasting the first one/two
-# memory areas.  We do not care of the efficiency of loading such resulting
-# exec-shield unfriendly prelinked library.
-if {[catch "system \"prelink -qNR --no-exec-shield ${libfile}\""] != 0} {
-    # Maybe we don't have prelink.
+set srcfile ${testfile}.c
+set executable ${testfile}t
+set binfile [standard_output_file ${executable}]
+set prelink_args [build_executable_own_libs ${testfile}.exp $executable $srcfile [list debug "ldflags=-Wl,${libfile},-rpath,[file dirname ${libfile}]"]]
+if {$prelink_args == ""} {
     return -1
 }
 
-set srcfile ${testfile}.c
-set binfile ${objdir}/${subdir}/${testfile}t
-if { [gdb_compile "${srcdir}/${subdir}/${srcfile} ${libfile}" "${binfile}" executable [list debug "additional_flags=-Wl,-rpath,${objdir}/${subdir}"]] != ""} {
-    return -1;
+set test "split debug of executable"
+if [gdb_gnu_strip_debug $binfile] {
+    fail $test
+} else {
+    pass $test
+}
+
+if ![prelink_yes $prelink_args] {
+    # Maybe we don't have prelink.
+    return -1
 }
 
 set found 0
-set coredir "${objdir}/${subdir}/coredir.[getpid]"
+set coredir "[standard_output_file coredir.[getpid]]"
 file mkdir $coredir
 catch "system \"(cd ${coredir}; ulimit -c unlimited; ${binfile}; true) >/dev/null 2>&1\""
 
 foreach i "${coredir}/core ${coredir}/core.coremaker.c ${binfile}.core" {
     if [remote_file build exists $i] {
-       remote_exec build "mv $i ${objdir}/${subdir}/prelink.core"
+       remote_exec build "mv $i [standard_output_file prelink.core]"
        set found 1
     }
 }
@@ -82,7 +81,7 @@ if { $found == 0 } {
     set names [glob -nocomplain -directory $coredir core.*]
     if {[llength $names] == 1} {
         set corefile [file join $coredir [lindex $names 0]]
-        remote_exec build "mv $corefile ${objdir}/${subdir}/prelink.core"
+        remote_exec build "mv $corefile [standard_output_file prelink.core]"
         set found 1
     }
 }
@@ -96,28 +95,18 @@ if { $found == 0  } {
     return 0
 }
 
-if {[catch "system \"prelink -uN ${libfile}\""] != 0} {
-    untested "${testfile}.so was not prelinked, maybe system libraries are not prelinked?"
-    return 0
+# Relink $libfile to a different address.
+if ![prelink_yes $prelink_args] {
+    return -1
 }
-catch "system \"prelink -qNR --no-exec-shield ${libfile}\""
 
 # Start with a fresh gdb
 
-gdb_exit
-gdb_start
-gdb_reinitialize_dir $srcdir/$subdir
-gdb_load ${binfile}
-
-set test "prelink"
-global gdb_prompt
-gdb_test_multiple "core-file $objdir/$subdir/prelink.core" "$test" {
-    -re "warning: \.dynamic section.*not at the expected address.*warning: difference.*caused by prelink, adjusting expectations.*$gdb_prompt $" {
-       pass "$test"
-    }
-}
+clean_restart $executable
 
-gdb_exit
+# Print the "adjusting expectations" message.
+gdb_test_no_output "set verbose on"
 
-return 0
+gdb_test "core-file [standard_output_file prelink.core]" "Using PIC \\(Position Independent Code\\) prelink displacement 0x\[^0\]\[0-9a-f\]* for \[^\r\n\]*[file tail ${libfile}].*" "seen displacement message"
 
+gdb_test "p &bssvar == bssvarp" " = 1" ".dynbss vs. .bss address shift"