File-copy from v4.4.100
This is the result of 'cp' from a linux-stable tree with the 'v4.4.100'
tag checked out (commit 26d6298789e695c9f627ce49a7bbd2286405798a) on
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Please refer to that tree for all history prior to this point.
Change-Id: I8a9ee2aea93cd29c52c847d0ce33091a73ae6afe
diff --git a/tools/build/feature/.gitignore b/tools/build/feature/.gitignore
new file mode 100644
index 0000000..09b335b
--- /dev/null
+++ b/tools/build/feature/.gitignore
@@ -0,0 +1,3 @@
+*.d
+*.bin
+*.output
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
new file mode 100644
index 0000000..cea04ce
--- /dev/null
+++ b/tools/build/feature/Makefile
@@ -0,0 +1,181 @@
+
+FILES= \
+ test-all.bin \
+ test-backtrace.bin \
+ test-bionic.bin \
+ test-dwarf.bin \
+ test-fortify-source.bin \
+ test-sync-compare-and-swap.bin \
+ test-glibc.bin \
+ test-gtk2.bin \
+ test-gtk2-infobar.bin \
+ test-hello.bin \
+ test-libaudit.bin \
+ test-libbfd.bin \
+ test-liberty.bin \
+ test-liberty-z.bin \
+ test-cplus-demangle.bin \
+ test-libelf.bin \
+ test-libelf-getphdrnum.bin \
+ test-libelf-mmap.bin \
+ test-libnuma.bin \
+ test-numa_num_possible_cpus.bin \
+ test-libperl.bin \
+ test-libpython.bin \
+ test-libpython-version.bin \
+ test-libslang.bin \
+ test-libunwind.bin \
+ test-libunwind-debug-frame.bin \
+ test-pthread-attr-setaffinity-np.bin \
+ test-stackprotector-all.bin \
+ test-timerfd.bin \
+ test-libdw-dwarf-unwind.bin \
+ test-libbabeltrace.bin \
+ test-compile-32.bin \
+ test-compile-x32.bin \
+ test-zlib.bin \
+ test-lzma.bin \
+ test-bpf.bin \
+ test-get_cpuid.bin
+
+CC := $(CROSS_COMPILE)gcc -MD
+PKG_CONFIG := $(CROSS_COMPILE)pkg-config
+
+all: $(FILES)
+
+__BUILD = $(CC) $(CFLAGS) -Wall -Werror -o $(OUTPUT)$@ $(patsubst %.bin,%.c,$@) $(LDFLAGS)
+ BUILD = $(__BUILD) > $(OUTPUT)$(@:.bin=.make.output) 2>&1
+
+###############################
+
+test-all.bin:
+ $(BUILD) -fstack-protector-all -O2 -D_FORTIFY_SOURCE=2 -ldw -lelf -lnuma -lelf -laudit -I/usr/include/slang -lslang $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null) $(FLAGS_PERL_EMBED) $(FLAGS_PYTHON_EMBED) -DPACKAGE='"perf"' -lbfd -ldl -lz -llzma
+
+test-hello.bin:
+ $(BUILD)
+
+test-pthread-attr-setaffinity-np.bin:
+ $(BUILD) -D_GNU_SOURCE -lpthread
+
+test-stackprotector-all.bin:
+ $(BUILD) -fstack-protector-all
+
+test-fortify-source.bin:
+ $(BUILD) -O2 -D_FORTIFY_SOURCE=2
+
+test-bionic.bin:
+ $(BUILD)
+
+test-libelf.bin:
+ $(BUILD) -lelf
+
+test-glibc.bin:
+ $(BUILD)
+
+DWARFLIBS := -ldw
+ifeq ($(findstring -static,${LDFLAGS}),-static)
+DWARFLIBS += -lelf -lebl -lz -llzma -lbz2
+endif
+
+test-dwarf.bin:
+ $(BUILD) $(DWARFLIBS)
+
+test-libelf-mmap.bin:
+ $(BUILD) -lelf
+
+test-libelf-getphdrnum.bin:
+ $(BUILD) -lelf
+
+test-libnuma.bin:
+ $(BUILD) -lnuma
+
+test-numa_num_possible_cpus.bin:
+ $(BUILD) -lnuma
+
+test-libunwind.bin:
+ $(BUILD) -lelf
+
+test-libunwind-debug-frame.bin:
+ $(BUILD) -lelf
+
+test-libaudit.bin:
+ $(BUILD) -laudit
+
+test-libslang.bin:
+ $(BUILD) -I/usr/include/slang -lslang
+
+test-gtk2.bin:
+ $(BUILD) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
+
+test-gtk2-infobar.bin:
+ $(BUILD) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
+
+grep-libs = $(filter -l%,$(1))
+strip-libs = $(filter-out -l%,$(1))
+
+PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
+PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
+PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
+PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
+FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
+
+test-libperl.bin:
+ $(BUILD) $(FLAGS_PERL_EMBED)
+
+test-libpython.bin:
+ $(BUILD)
+
+test-libpython-version.bin:
+ $(BUILD)
+
+test-libbfd.bin:
+ $(BUILD) -DPACKAGE='"perf"' -lbfd -lz -liberty -ldl
+
+test-liberty.bin:
+ $(CC) $(CFLAGS) -Wall -Werror -o $(OUTPUT)$@ test-libbfd.c -DPACKAGE='"perf"' $(LDFLAGS) -lbfd -ldl -liberty
+
+test-liberty-z.bin:
+ $(CC) $(CFLAGS) -Wall -Werror -o $(OUTPUT)$@ test-libbfd.c -DPACKAGE='"perf"' $(LDFLAGS) -lbfd -ldl -liberty -lz
+
+test-cplus-demangle.bin:
+ $(BUILD) -liberty
+
+test-backtrace.bin:
+ $(BUILD)
+
+test-timerfd.bin:
+ $(BUILD)
+
+test-libdw-dwarf-unwind.bin:
+ $(BUILD) # -ldw provided by $(FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind)
+
+test-libbabeltrace.bin:
+ $(BUILD) # -lbabeltrace provided by $(FEATURE_CHECK_LDFLAGS-libbabeltrace)
+
+test-sync-compare-and-swap.bin:
+ $(BUILD)
+
+test-compile-32.bin:
+ $(CC) -m32 -o $(OUTPUT)$@ test-compile.c
+
+test-compile-x32.bin:
+ $(CC) -mx32 -o $(OUTPUT)$@ test-compile.c
+
+test-zlib.bin:
+ $(BUILD) -lz
+
+test-lzma.bin:
+ $(BUILD) -llzma
+
+test-get_cpuid.bin:
+ $(BUILD)
+
+test-bpf.bin:
+ $(BUILD)
+
+-include *.d
+
+###############################
+
+clean:
+ rm -f $(FILES) *.d $(FILES:.bin=.make.output)
diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c
new file mode 100644
index 0000000..33cf6f2
--- /dev/null
+++ b/tools/build/feature/test-all.c
@@ -0,0 +1,158 @@
+/*
+ * test-all.c: Try to build all the main testcases at once.
+ *
+ * A well-configured system will have all the prereqs installed, so we can speed
+ * up auto-detection on such systems.
+ */
+
+/*
+ * Quirk: Python and Perl headers cannot be in arbitrary places, so keep
+ * these 3 testcases at the top:
+ */
+#define main main_test_libpython
+# include "test-libpython.c"
+#undef main
+
+#define main main_test_libpython_version
+# include "test-libpython-version.c"
+#undef main
+
+#define main main_test_libperl
+# include "test-libperl.c"
+#undef main
+
+#define main main_test_hello
+# include "test-hello.c"
+#undef main
+
+#define main main_test_libelf
+# include "test-libelf.c"
+#undef main
+
+#define main main_test_libelf_mmap
+# include "test-libelf-mmap.c"
+#undef main
+
+#define main main_test_glibc
+# include "test-glibc.c"
+#undef main
+
+#define main main_test_dwarf
+# include "test-dwarf.c"
+#undef main
+
+#define main main_test_libelf_getphdrnum
+# include "test-libelf-getphdrnum.c"
+#undef main
+
+#define main main_test_libunwind
+# include "test-libunwind.c"
+#undef main
+
+#define main main_test_libaudit
+# include "test-libaudit.c"
+#undef main
+
+#define main main_test_libslang
+# include "test-libslang.c"
+#undef main
+
+#define main main_test_gtk2
+# include "test-gtk2.c"
+#undef main
+
+#define main main_test_gtk2_infobar
+# include "test-gtk2-infobar.c"
+#undef main
+
+#define main main_test_libbfd
+# include "test-libbfd.c"
+#undef main
+
+#define main main_test_backtrace
+# include "test-backtrace.c"
+#undef main
+
+#define main main_test_libnuma
+# include "test-libnuma.c"
+#undef main
+
+#define main main_test_numa_num_possible_cpus
+# include "test-numa_num_possible_cpus.c"
+#undef main
+
+#define main main_test_timerfd
+# include "test-timerfd.c"
+#undef main
+
+#define main main_test_stackprotector_all
+# include "test-stackprotector-all.c"
+#undef main
+
+#define main main_test_libdw_dwarf_unwind
+# include "test-libdw-dwarf-unwind.c"
+#undef main
+
+#define main main_test_sync_compare_and_swap
+# include "test-sync-compare-and-swap.c"
+#undef main
+
+#define main main_test_zlib
+# include "test-zlib.c"
+#undef main
+
+#define main main_test_pthread_attr_setaffinity_np
+# include "test-pthread-attr-setaffinity-np.c"
+#undef main
+
+# if 0
+/*
+ * Disable libbabeltrace check for test-all, because the requested
+ * library version is not released yet in most distributions. Will
+ * reenable later.
+ */
+
+#define main main_test_libbabeltrace
+# include "test-libbabeltrace.c"
+#undef main
+#endif
+
+#define main main_test_lzma
+# include "test-lzma.c"
+#undef main
+
+#define main main_test_get_cpuid
+# include "test-get_cpuid.c"
+#undef main
+
+int main(int argc, char *argv[])
+{
+ main_test_libpython();
+ main_test_libpython_version();
+ main_test_libperl();
+ main_test_hello();
+ main_test_libelf();
+ main_test_libelf_mmap();
+ main_test_glibc();
+ main_test_dwarf();
+ main_test_libelf_getphdrnum();
+ main_test_libunwind();
+ main_test_libaudit();
+ main_test_libslang();
+ main_test_gtk2(argc, argv);
+ main_test_gtk2_infobar(argc, argv);
+ main_test_libbfd();
+ main_test_backtrace();
+ main_test_libnuma();
+ main_test_numa_num_possible_cpus();
+ main_test_timerfd();
+ main_test_stackprotector_all();
+ main_test_libdw_dwarf_unwind();
+ main_test_sync_compare_and_swap(argc, argv);
+ main_test_zlib();
+ main_test_pthread_attr_setaffinity_np();
+ main_test_lzma();
+ main_test_get_cpuid();
+
+ return 0;
+}
diff --git a/tools/build/feature/test-backtrace.c b/tools/build/feature/test-backtrace.c
new file mode 100644
index 0000000..7124aa1
--- /dev/null
+++ b/tools/build/feature/test-backtrace.c
@@ -0,0 +1,13 @@
+#include <execinfo.h>
+#include <stdio.h>
+
+int main(void)
+{
+ void *backtrace_fns[10];
+ size_t entries;
+
+ entries = backtrace(backtrace_fns, 10);
+ backtrace_symbols_fd(backtrace_fns, entries, 1);
+
+ return 0;
+}
diff --git a/tools/build/feature/test-bionic.c b/tools/build/feature/test-bionic.c
new file mode 100644
index 0000000..eac24e9
--- /dev/null
+++ b/tools/build/feature/test-bionic.c
@@ -0,0 +1,6 @@
+#include <android/api-level.h>
+
+int main(void)
+{
+ return __ANDROID_API__;
+}
diff --git a/tools/build/feature/test-bpf.c b/tools/build/feature/test-bpf.c
new file mode 100644
index 0000000..062bac8
--- /dev/null
+++ b/tools/build/feature/test-bpf.c
@@ -0,0 +1,18 @@
+#include <linux/bpf.h>
+
+int main(void)
+{
+ union bpf_attr attr;
+
+ attr.prog_type = BPF_PROG_TYPE_KPROBE;
+ attr.insn_cnt = 0;
+ attr.insns = 0;
+ attr.license = 0;
+ attr.log_buf = 0;
+ attr.log_size = 0;
+ attr.log_level = 0;
+ attr.kern_version = 0;
+
+ attr = attr;
+ return 0;
+}
diff --git a/tools/build/feature/test-compile.c b/tools/build/feature/test-compile.c
new file mode 100644
index 0000000..31dbf45
--- /dev/null
+++ b/tools/build/feature/test-compile.c
@@ -0,0 +1,4 @@
+int main(void)
+{
+ return 0;
+}
diff --git a/tools/build/feature/test-cplus-demangle.c b/tools/build/feature/test-cplus-demangle.c
new file mode 100644
index 0000000..610c686
--- /dev/null
+++ b/tools/build/feature/test-cplus-demangle.c
@@ -0,0 +1,14 @@
+extern int printf(const char *format, ...);
+extern char *cplus_demangle(const char *, int);
+
+int main(void)
+{
+ char symbol[4096] = "FieldName__9ClassNameFd";
+ char *tmp;
+
+ tmp = cplus_demangle(symbol, 0);
+
+ printf("demangled symbol: {%s}\n", tmp);
+
+ return 0;
+}
diff --git a/tools/build/feature/test-dwarf.c b/tools/build/feature/test-dwarf.c
new file mode 100644
index 0000000..3fc1801
--- /dev/null
+++ b/tools/build/feature/test-dwarf.c
@@ -0,0 +1,10 @@
+#include <dwarf.h>
+#include <elfutils/libdw.h>
+#include <elfutils/version.h>
+
+int main(void)
+{
+ Dwarf *dbg = dwarf_begin(0, DWARF_C_READ);
+
+ return (long)dbg;
+}
diff --git a/tools/build/feature/test-fortify-source.c b/tools/build/feature/test-fortify-source.c
new file mode 100644
index 0000000..c9f398d
--- /dev/null
+++ b/tools/build/feature/test-fortify-source.c
@@ -0,0 +1,6 @@
+#include <stdio.h>
+
+int main(void)
+{
+ return puts("hi");
+}
diff --git a/tools/build/feature/test-get_cpuid.c b/tools/build/feature/test-get_cpuid.c
new file mode 100644
index 0000000..d7a2c40
--- /dev/null
+++ b/tools/build/feature/test-get_cpuid.c
@@ -0,0 +1,7 @@
+#include <cpuid.h>
+
+int main(void)
+{
+ unsigned int eax = 0, ebx = 0, ecx = 0, edx = 0;
+ return __get_cpuid(0x15, &eax, &ebx, &ecx, &edx);
+}
diff --git a/tools/build/feature/test-glibc.c b/tools/build/feature/test-glibc.c
new file mode 100644
index 0000000..9367f75
--- /dev/null
+++ b/tools/build/feature/test-glibc.c
@@ -0,0 +1,19 @@
+#include <stdlib.h>
+
+#if !defined(__UCLIBC__)
+#include <gnu/libc-version.h>
+#else
+#define XSTR(s) STR(s)
+#define STR(s) #s
+#endif
+
+int main(void)
+{
+#if !defined(__UCLIBC__)
+ const char *version = gnu_get_libc_version();
+#else
+ const char *version = XSTR(__GLIBC__) "." XSTR(__GLIBC_MINOR__);
+#endif
+
+ return (long)version;
+}
diff --git a/tools/build/feature/test-gtk2-infobar.c b/tools/build/feature/test-gtk2-infobar.c
new file mode 100644
index 0000000..397b464
--- /dev/null
+++ b/tools/build/feature/test-gtk2-infobar.c
@@ -0,0 +1,11 @@
+#pragma GCC diagnostic ignored "-Wstrict-prototypes"
+#include <gtk/gtk.h>
+#pragma GCC diagnostic error "-Wstrict-prototypes"
+
+int main(int argc, char *argv[])
+{
+ gtk_init(&argc, &argv);
+ gtk_info_bar_new();
+
+ return 0;
+}
diff --git a/tools/build/feature/test-gtk2.c b/tools/build/feature/test-gtk2.c
new file mode 100644
index 0000000..6bd80e5
--- /dev/null
+++ b/tools/build/feature/test-gtk2.c
@@ -0,0 +1,10 @@
+#pragma GCC diagnostic ignored "-Wstrict-prototypes"
+#include <gtk/gtk.h>
+#pragma GCC diagnostic error "-Wstrict-prototypes"
+
+int main(int argc, char *argv[])
+{
+ gtk_init(&argc, &argv);
+
+ return 0;
+}
diff --git a/tools/build/feature/test-hello.c b/tools/build/feature/test-hello.c
new file mode 100644
index 0000000..c9f398d
--- /dev/null
+++ b/tools/build/feature/test-hello.c
@@ -0,0 +1,6 @@
+#include <stdio.h>
+
+int main(void)
+{
+ return puts("hi");
+}
diff --git a/tools/build/feature/test-libaudit.c b/tools/build/feature/test-libaudit.c
new file mode 100644
index 0000000..afc019f
--- /dev/null
+++ b/tools/build/feature/test-libaudit.c
@@ -0,0 +1,10 @@
+#include <libaudit.h>
+
+extern int printf(const char *format, ...);
+
+int main(void)
+{
+ printf("error message: %s\n", audit_errno_to_name(0));
+
+ return audit_open();
+}
diff --git a/tools/build/feature/test-libbabeltrace.c b/tools/build/feature/test-libbabeltrace.c
new file mode 100644
index 0000000..9cf802a
--- /dev/null
+++ b/tools/build/feature/test-libbabeltrace.c
@@ -0,0 +1,9 @@
+
+#include <babeltrace/ctf-writer/writer.h>
+#include <babeltrace/ctf-ir/stream-class.h>
+
+int main(void)
+{
+ bt_ctf_stream_class_get_packet_context_type((void *) 0);
+ return 0;
+}
diff --git a/tools/build/feature/test-libbfd.c b/tools/build/feature/test-libbfd.c
new file mode 100644
index 0000000..2405990
--- /dev/null
+++ b/tools/build/feature/test-libbfd.c
@@ -0,0 +1,15 @@
+#include <bfd.h>
+
+extern int printf(const char *format, ...);
+
+int main(void)
+{
+ char symbol[4096] = "FieldName__9ClassNameFd";
+ char *tmp;
+
+ tmp = bfd_demangle(0, symbol, 0);
+
+ printf("demangled symbol: {%s}\n", tmp);
+
+ return 0;
+}
diff --git a/tools/build/feature/test-libdw-dwarf-unwind.c b/tools/build/feature/test-libdw-dwarf-unwind.c
new file mode 100644
index 0000000..f676a3f
--- /dev/null
+++ b/tools/build/feature/test-libdw-dwarf-unwind.c
@@ -0,0 +1,13 @@
+
+#include <elfutils/libdwfl.h>
+
+int main(void)
+{
+ /*
+ * This function is guarded via: __nonnull_attribute__ (1, 2).
+ * Passing '1' as arguments value. This code is never executed,
+ * only compiled.
+ */
+ dwfl_thread_getframes((void *) 1, (void *) 1, NULL);
+ return 0;
+}
diff --git a/tools/build/feature/test-libelf-getphdrnum.c b/tools/build/feature/test-libelf-getphdrnum.c
new file mode 100644
index 0000000..d710459
--- /dev/null
+++ b/tools/build/feature/test-libelf-getphdrnum.c
@@ -0,0 +1,8 @@
+#include <libelf.h>
+
+int main(void)
+{
+ size_t dst;
+
+ return elf_getphdrnum(0, &dst);
+}
diff --git a/tools/build/feature/test-libelf-mmap.c b/tools/build/feature/test-libelf-mmap.c
new file mode 100644
index 0000000..564427d
--- /dev/null
+++ b/tools/build/feature/test-libelf-mmap.c
@@ -0,0 +1,8 @@
+#include <libelf.h>
+
+int main(void)
+{
+ Elf *elf = elf_begin(0, ELF_C_READ_MMAP, 0);
+
+ return (long)elf;
+}
diff --git a/tools/build/feature/test-libelf.c b/tools/build/feature/test-libelf.c
new file mode 100644
index 0000000..08db322
--- /dev/null
+++ b/tools/build/feature/test-libelf.c
@@ -0,0 +1,8 @@
+#include <libelf.h>
+
+int main(void)
+{
+ Elf *elf = elf_begin(0, ELF_C_READ, 0);
+
+ return (long)elf;
+}
diff --git a/tools/build/feature/test-libnuma.c b/tools/build/feature/test-libnuma.c
new file mode 100644
index 0000000..4763d9c
--- /dev/null
+++ b/tools/build/feature/test-libnuma.c
@@ -0,0 +1,9 @@
+#include <numa.h>
+#include <numaif.h>
+
+int main(void)
+{
+ numa_available();
+
+ return 0;
+}
diff --git a/tools/build/feature/test-libperl.c b/tools/build/feature/test-libperl.c
new file mode 100644
index 0000000..8871f6a
--- /dev/null
+++ b/tools/build/feature/test-libperl.c
@@ -0,0 +1,9 @@
+#include <EXTERN.h>
+#include <perl.h>
+
+int main(void)
+{
+ perl_alloc();
+
+ return 0;
+}
diff --git a/tools/build/feature/test-libpython-version.c b/tools/build/feature/test-libpython-version.c
new file mode 100644
index 0000000..facea12
--- /dev/null
+++ b/tools/build/feature/test-libpython-version.c
@@ -0,0 +1,10 @@
+#include <Python.h>
+
+#if PY_VERSION_HEX >= 0x03000000
+ #error
+#endif
+
+int main(void)
+{
+ return 0;
+}
diff --git a/tools/build/feature/test-libpython.c b/tools/build/feature/test-libpython.c
new file mode 100644
index 0000000..b24b28a
--- /dev/null
+++ b/tools/build/feature/test-libpython.c
@@ -0,0 +1,8 @@
+#include <Python.h>
+
+int main(void)
+{
+ Py_Initialize();
+
+ return 0;
+}
diff --git a/tools/build/feature/test-libslang.c b/tools/build/feature/test-libslang.c
new file mode 100644
index 0000000..22ff22e
--- /dev/null
+++ b/tools/build/feature/test-libslang.c
@@ -0,0 +1,6 @@
+#include <slang.h>
+
+int main(void)
+{
+ return SLsmg_init_smg();
+}
diff --git a/tools/build/feature/test-libunwind-debug-frame.c b/tools/build/feature/test-libunwind-debug-frame.c
new file mode 100644
index 0000000..0ef8087
--- /dev/null
+++ b/tools/build/feature/test-libunwind-debug-frame.c
@@ -0,0 +1,16 @@
+#include <libunwind.h>
+#include <stdlib.h>
+
+extern int
+UNW_OBJ(dwarf_find_debug_frame) (int found, unw_dyn_info_t *di_debug,
+ unw_word_t ip, unw_word_t segbase,
+ const char *obj_name, unw_word_t start,
+ unw_word_t end);
+
+#define dwarf_find_debug_frame UNW_OBJ(dwarf_find_debug_frame)
+
+int main(void)
+{
+ dwarf_find_debug_frame(0, NULL, 0, 0, NULL, 0, 0);
+ return 0;
+}
diff --git a/tools/build/feature/test-libunwind.c b/tools/build/feature/test-libunwind.c
new file mode 100644
index 0000000..43b9369
--- /dev/null
+++ b/tools/build/feature/test-libunwind.c
@@ -0,0 +1,27 @@
+#include <libunwind.h>
+#include <stdlib.h>
+
+extern int UNW_OBJ(dwarf_search_unwind_table) (unw_addr_space_t as,
+ unw_word_t ip,
+ unw_dyn_info_t *di,
+ unw_proc_info_t *pi,
+ int need_unwind_info, void *arg);
+
+
+#define dwarf_search_unwind_table UNW_OBJ(dwarf_search_unwind_table)
+
+static unw_accessors_t accessors;
+
+int main(void)
+{
+ unw_addr_space_t addr_space;
+
+ addr_space = unw_create_addr_space(&accessors, 0);
+ if (addr_space)
+ return 0;
+
+ unw_init_remote(NULL, addr_space, NULL);
+ dwarf_search_unwind_table(addr_space, 0, NULL, NULL, 0, NULL);
+
+ return 0;
+}
diff --git a/tools/build/feature/test-lzma.c b/tools/build/feature/test-lzma.c
new file mode 100644
index 0000000..95adc8c
--- /dev/null
+++ b/tools/build/feature/test-lzma.c
@@ -0,0 +1,10 @@
+#include <lzma.h>
+
+int main(void)
+{
+ lzma_stream strm = LZMA_STREAM_INIT;
+ int ret;
+
+ ret = lzma_stream_decoder(&strm, UINT64_MAX, LZMA_CONCATENATED);
+ return ret ? -1 : 0;
+}
diff --git a/tools/build/feature/test-numa_num_possible_cpus.c b/tools/build/feature/test-numa_num_possible_cpus.c
new file mode 100644
index 0000000..2606e94
--- /dev/null
+++ b/tools/build/feature/test-numa_num_possible_cpus.c
@@ -0,0 +1,6 @@
+#include <numa.h>
+
+int main(void)
+{
+ return numa_num_possible_cpus();
+}
diff --git a/tools/build/feature/test-pthread-attr-setaffinity-np.c b/tools/build/feature/test-pthread-attr-setaffinity-np.c
new file mode 100644
index 0000000..fdada5e
--- /dev/null
+++ b/tools/build/feature/test-pthread-attr-setaffinity-np.c
@@ -0,0 +1,17 @@
+#include <stdint.h>
+#include <pthread.h>
+#include <sched.h>
+
+int main(void)
+{
+ int ret = 0;
+ pthread_attr_t thread_attr;
+ cpu_set_t cs;
+
+ pthread_attr_init(&thread_attr);
+ CPU_ZERO(&cs);
+
+ ret = pthread_attr_setaffinity_np(&thread_attr, sizeof(cs), &cs);
+
+ return ret;
+}
diff --git a/tools/build/feature/test-stackprotector-all.c b/tools/build/feature/test-stackprotector-all.c
new file mode 100644
index 0000000..c9f398d
--- /dev/null
+++ b/tools/build/feature/test-stackprotector-all.c
@@ -0,0 +1,6 @@
+#include <stdio.h>
+
+int main(void)
+{
+ return puts("hi");
+}
diff --git a/tools/build/feature/test-sync-compare-and-swap.c b/tools/build/feature/test-sync-compare-and-swap.c
new file mode 100644
index 0000000..c34d4ca
--- /dev/null
+++ b/tools/build/feature/test-sync-compare-and-swap.c
@@ -0,0 +1,14 @@
+#include <stdint.h>
+
+volatile uint64_t x;
+
+int main(int argc, char *argv[])
+{
+ uint64_t old, new = argc;
+
+ argv = argv;
+ do {
+ old = __sync_val_compare_and_swap(&x, 0, 0);
+ } while (!__sync_bool_compare_and_swap(&x, old, new));
+ return old == new;
+}
diff --git a/tools/build/feature/test-timerfd.c b/tools/build/feature/test-timerfd.c
new file mode 100644
index 0000000..8c5c083
--- /dev/null
+++ b/tools/build/feature/test-timerfd.c
@@ -0,0 +1,18 @@
+/*
+ * test for timerfd functions used by perf-kvm-stat-live
+ */
+#include <sys/timerfd.h>
+
+int main(void)
+{
+ struct itimerspec new_value;
+
+ int fd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK);
+ if (fd < 0)
+ return 1;
+
+ if (timerfd_settime(fd, 0, &new_value, NULL) != 0)
+ return 1;
+
+ return 0;
+}
diff --git a/tools/build/feature/test-zlib.c b/tools/build/feature/test-zlib.c
new file mode 100644
index 0000000..e111fff
--- /dev/null
+++ b/tools/build/feature/test-zlib.c
@@ -0,0 +1,9 @@
+#include <zlib.h>
+
+int main(void)
+{
+ z_stream zs;
+
+ inflateInit(&zs);
+ return 0;
+}