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Skip the PR 14918 linker test for ARM targets. 

I am applying a patch that has been lying around in the Fedora
  binutils sources for a while.  It skips the PR14918 linker test for
  ARM based targets.  This test checks that libgcc is not included in a
  link of an empty executable.  This works for most targets, but on the
  ARM the crt1.o startup code calls __libc_csu_init which is in
  /usr/lib/libc_nonshared.a(elf-init.oS).  This in turn needs
  __aeabi_unwind_cpp_pr0@@GCC_3.5 which is provided by libgcc_s.so.1,
  and so the test fails.
This commit is contained in:
Nick Clifton 2017-09-28 11:33:20 +01:00
parent 1a3b5c34fe
commit 231ca75323
2 changed files with 19 additions and 3 deletions
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6
ld/ChangeLog
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@ -1,3 +1,9 @@
2017-09-28 Nick Clifton <nickc@redhat.com>
PR 14918
* testsuite/ld-plugin/lto.exp (link_elf_tests): Skip the pr14918
test for ARM targets as they always link with libgcc.
2017-09-28 Alan Modra <amodra@gmail.com>
* testsuite/ld-plugin/pr22220.h,

16
ld/testsuite/ld-plugin/lto.exp
View File

@ -286,9 +286,6 @@ set lto_link_elf_tests [list \
[list "PR ld/16746 (2)" \
"-O2 -flto -fuse-linker-plugin tmpdir/pr16746c.o tmpdir/pr16746a.o" "-O2 -flto" \
{dummy.c} {} "pr16746b.exe"] \
[list "PR ld/14918" \
"-flto" "-flto" \
{pr14918.c} {{"readelf" {-d --wide} "pr14918.d"}} "pr14918.exe" "c"] \
[list "Build pr21382a.o" \
"" "-O2 -flto" \
{pr21382a.c} {} "" "c"] \
@ -303,6 +300,19 @@ set lto_link_elf_tests [list \
{pr22220main.cc} {} {} {c++}] \
]
# PR 14918 checks that libgcc is not spuriously included in a shared link of
# an empty program. The ARM crt1.o startup code however calls __libc_csu_init
# in /usr/lib/libc_nonshared.a(elf-init.oS). This in turn needs
# __aeabi_unwind_cpp_pr0@@GCC_3.5 which is provided by libgcc_s.so.1, so the
# test fails. Hence this code to skip the test.
if { ! [istarget "arm*-*-*"] } {
set lto_link_elf_tests [concat $lto_link_elf_tests [list \
[list "PR ld/14918" \
"-flto" "-flto" \
{pr14918.c} {{"readelf" {-d --wide} "pr14918.d"}} "pr14918.exe" "c"] \
]]
}
# Check final symbols in executables.
set lto_link_symbol_tests [list \
[list "LTO 3 symbol" \