[binutils-gdb] [GOLD] Tweak keep_text_section_prefix test for PowerPC64 ELFv1

[Alan Modra <amodra at sourceware dot org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=a529dcc854968b7f6ad766c714650011dc361382

commit a529dcc854968b7f6ad766c714650011dc361382
Author: Alan Modra <amodra@gmail.com>
Date:   Tue Dec 18 10:47:44 2018 +1030

    [GOLD] Tweak keep_text_section_prefix test for PowerPC64 ELFv1
    
    This test checks code layout by function symbol ordering, but that
    doesn't work on powerpc64 ELFv1 where the function symbol is on a
    descriptor.  A simple work-around is to have nm emit synthetic symbols
    marking the code entry point of functions.  Since the text segment is
    laid out before the data segment, the synthetic symbols will have
    lower addresses than function descriptor symbols and be seen first in
    nm -n output.
    
    On other targets, nm --synthetic typically emits symbols on plt
    entries.  Since the testcase doesn't call any of the functions of
    interest there shouldn't be plt entries for those functions, so there
    should be no potentially confusing extra symbols.
    
    	* testsuite/Makefile.am (keep_text_section_prefix_nm.stdout):
    	Pass --synthetic to nm.
    	* testsuite/Makefile.in: Regenerate.

Diff:
---
 gold/ChangeLog             | 6 ++++++
 gold/testsuite/Makefile.am | 2 +-
 gold/testsuite/Makefile.in | 2 +-
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/gold/ChangeLog b/gold/ChangeLog
index b16c728..cdbddde 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,3 +1,9 @@
+2018-12-18  Alan Modra  <amodra@gmail.com>
+
+	* testsuite/Makefile.am (keep_text_section_prefix_nm.stdout):
+	Pass --synthetic to nm.
+	* testsuite/Makefile.in: Regenerate.
+
 2018-12-08  Alan Modra  <amodra@gmail.com>
 
 	PR 21128
diff --git a/gold/testsuite/Makefile.am b/gold/testsuite/Makefile.am
index 135790b..e44cf6e 100644
--- a/gold/testsuite/Makefile.am
+++ b/gold/testsuite/Makefile.am
@@ -388,7 +388,7 @@ keep_text_section_prefix: keep_text_section_prefix.o gcctestdir/ld
 keep_text_section_prefix_readelf.stdout: keep_text_section_prefix
 	$(TEST_READELF) -Wl $< >$@
 keep_text_section_prefix_nm.stdout: keep_text_section_prefix
-	$(TEST_NM) -n $< >$@
+	$(TEST_NM) -n --synthetic $< >$@
 
 check_PROGRAMS += icf_virtual_function_folding_test
 MOSTLYCLEANFILES += icf_virtual_function_folding_test icf_virtual_function_folding_test.map
diff --git a/gold/testsuite/Makefile.in b/gold/testsuite/Makefile.in
index db92394..dd6bbfc 100644
--- a/gold/testsuite/Makefile.in
+++ b/gold/testsuite/Makefile.in
@@ -7985,7 +7985,7 @@ uninstall-am:
 @GCC_TRUE@@NATIVE_LINKER_TRUE@keep_text_section_prefix_readelf.stdout: keep_text_section_prefix
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	$(TEST_READELF) -Wl $< >$@
 @GCC_TRUE@@NATIVE_LINKER_TRUE@keep_text_section_prefix_nm.stdout: keep_text_section_prefix
-@GCC_TRUE@@NATIVE_LINKER_TRUE@	$(TEST_NM) -n $< >$@
+@GCC_TRUE@@NATIVE_LINKER_TRUE@	$(TEST_NM) -n --synthetic $< >$@
 @GCC_TRUE@@NATIVE_LINKER_TRUE@icf_virtual_function_folding_test.o: icf_virtual_function_folding_test.cc
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	$(CXXCOMPILE) -O0 -c -ffunction-sections -fPIE -g -o $@ $<
 @GCC_TRUE@@NATIVE_LINKER_TRUE@icf_virtual_function_folding_test: icf_virtual_function_folding_test.o gcctestdir/ld