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Fix compilation of tests on alpine linux (musl libc)

If we don't link to libexecinfo, as detected by the
AC_SEARCH_LIBS(backtrace, execinfo) configure probe, we get

```
test-coredump-unwind.o: In function `handle_sigsegv':
/home/libunwind/tests/test-coredump-unwind.c:246: undefined reference to
`backtrace_symbols_fd'
collect2: error: ld returned 1 exit status
Makefile:1187: recipe for target 'test-coredump-unwind' failed
```

and

```
Gtest-init.o: In function `do_backtrace()':
Gtest-init.cxx:(.text+0x2f): undefined reference to `_Ux86_64_getcontext'
Gtest-init.cxx:(.text+0x48): undefined reference to `_Ux86_64_init_local'
Gtest-init.cxx:(.text+0x63): undefined reference to `_Ux86_64_get_reg'
Gtest-init.cxx:(.text+0x96): undefined reference to `_Ux86_64_get_proc_name'
Gtest-init.cxx:(.text+0x171): undefined reference to `_Ux86_64_step'
collect2: error: ld returned 1 exit status
Makefile:1063: recipe for target 'Gtest-init' failed
```

There are 2 XFAIL and 6 FAIL tests, but it's a start
This commit is contained in:
Tony Kelman 2016-01-31 08:31:04 +00:00 committed by Dave Watson
parent fd44f596b2
commit 5dcb7cd3cb
2 changed files with 7 additions and 2 deletions

View file

@ -373,6 +373,10 @@ old_LIBS="$LIBS"
LIBS=""
AC_SEARCH_LIBS(backtrace, execinfo)
LIBS="$old_LIBS"
case "$ac_cv_search_backtrace" in
-l*) BACKTRACELIB=$ac_cv_search_backtrace;;
*) BACKTRACELIB="";;
esac
AC_SUBST(build_arch)
AC_SUBST(target_os)
@ -388,6 +392,7 @@ AC_SUBST(PKG_MAINTAINER)
AC_SUBST(enable_cxx_exceptions)
AC_SUBST(enable_debug_frame)
AC_SUBST(DLLIB)
AC_SUBST(BACKTRACELIB)
AC_PATH_PROG([LATEX2MAN],[latex2man])
if test "x$LATEX2MAN" = "x"; then

View file

@ -179,7 +179,7 @@ Gtest_bt_LDADD = $(LIBUNWIND) $(LIBUNWIND_local)
Gtest_concurrent_LDADD = $(LIBUNWIND) $(LIBUNWIND_local) -lpthread
Gtest_dyn1_LDADD = $(LIBUNWIND) $(LIBUNWIND_local)
Gtest_exc_LDADD = $(LIBUNWIND) $(LIBUNWIND_local)
Gtest_init_LDADD = $(LIBUNWIND) $(LIBUNWIND_local)
Gtest_init_LDADD = $(LIBUNWIND) $(LIBUNWIND_local) @BACKTRACELIB@
Gtest_resume_sig_LDADD = $(LIBUNWIND) $(LIBUNWIND_local)
Gtest_resume_sig_rt_LDADD = $(LIBUNWIND) $(LIBUNWIND_local)
Gperf_simple_LDADD = $(LIBUNWIND) $(LIBUNWIND_local)
@ -203,7 +203,7 @@ test_setjmp_LDADD = $(LIBUNWIND_setjmp)
ia64_test_setjmp_LDADD = $(LIBUNWIND_setjmp)
if BUILD_COREDUMP
test_coredump_unwind_LDADD = $(LIBUNWIND_coredump) $(LIBUNWIND)
test_coredump_unwind_LDADD = $(LIBUNWIND_coredump) $(LIBUNWIND) @BACKTRACELIB@
endif
Gia64_test_nat_LDADD = $(LIBUNWIND) $(LIBUNWIND_local)