From bd5969fc876a10b18613302db7087ef3c40f18e1 Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Thu, 7 Mar 2024 17:28:00 -0500 Subject: lib: Add mlibc Signed-off-by: Ian Moffett --- lib/mlibc/tests/rtdl/scope4/libbar.c | 3 +++ lib/mlibc/tests/rtdl/scope4/libbaz.c | 1 + lib/mlibc/tests/rtdl/scope4/libfoo.c | 3 +++ lib/mlibc/tests/rtdl/scope4/meson.build | 9 +++++++++ lib/mlibc/tests/rtdl/scope4/test.c | 36 +++++++++++++++++++++++++++++++++ 5 files changed, 52 insertions(+) create mode 100644 lib/mlibc/tests/rtdl/scope4/libbar.c create mode 100644 lib/mlibc/tests/rtdl/scope4/libbaz.c create mode 100644 lib/mlibc/tests/rtdl/scope4/libfoo.c create mode 100644 lib/mlibc/tests/rtdl/scope4/meson.build create mode 100644 lib/mlibc/tests/rtdl/scope4/test.c (limited to 'lib/mlibc/tests/rtdl/scope4') diff --git a/lib/mlibc/tests/rtdl/scope4/libbar.c b/lib/mlibc/tests/rtdl/scope4/libbar.c new file mode 100644 index 0000000..514e456 --- /dev/null +++ b/lib/mlibc/tests/rtdl/scope4/libbar.c @@ -0,0 +1,3 @@ +// Bar needs to have a relocation against foo in order to set DT_NEEDED. +void foo(void); +void bar() { foo(); } diff --git a/lib/mlibc/tests/rtdl/scope4/libbaz.c b/lib/mlibc/tests/rtdl/scope4/libbaz.c new file mode 100644 index 0000000..256a0e3 --- /dev/null +++ b/lib/mlibc/tests/rtdl/scope4/libbaz.c @@ -0,0 +1 @@ +void baz() {} diff --git a/lib/mlibc/tests/rtdl/scope4/libfoo.c b/lib/mlibc/tests/rtdl/scope4/libfoo.c new file mode 100644 index 0000000..6710db7 --- /dev/null +++ b/lib/mlibc/tests/rtdl/scope4/libfoo.c @@ -0,0 +1,3 @@ +// Foo needs to have a relocation against baz in order to set DT_NEEDED. +void baz(void); +void foo() { baz(); } diff --git a/lib/mlibc/tests/rtdl/scope4/meson.build b/lib/mlibc/tests/rtdl/scope4/meson.build new file mode 100644 index 0000000..804a40c --- /dev/null +++ b/lib/mlibc/tests/rtdl/scope4/meson.build @@ -0,0 +1,9 @@ +libbaz = shared_library('baz', 'libbaz.c') +libfoo = shared_library('foo', 'libfoo.c', build_rpath: test_rpath, link_with: libbaz) +libbar = shared_library('bar', 'libbar.c', build_rpath: test_rpath, link_with: libfoo) +test_depends = [libfoo, libbar, libbaz] + +libbaz_native = shared_library('native-baz', 'libbaz.c', native: true) +libfoo_native = shared_library('native-foo', 'libfoo.c', build_rpath: test_rpath, link_with: libbaz_native, native: true) +libbar_native = shared_library('native-bar', 'libbar.c', build_rpath: test_rpath, link_with: libfoo_native, native: true) +test_native_depends = [libfoo_native, libbar_native, libbaz_native] diff --git a/lib/mlibc/tests/rtdl/scope4/test.c b/lib/mlibc/tests/rtdl/scope4/test.c new file mode 100644 index 0000000..2365e26 --- /dev/null +++ b/lib/mlibc/tests/rtdl/scope4/test.c @@ -0,0 +1,36 @@ +#include +#include +#include + +#ifdef USE_HOST_LIBC +#define LIBFOO "libnative-foo.so" +#define LIBBAR "libnative-bar.so" +#define LIBBAZ "libnative-baz.so" +#else +#define LIBFOO "libfoo.so" +#define LIBBAR "libbar.so" +#define LIBBAZ "libbaz.so" +#endif + +int main() { + // In this test, we have foo -> baz, bar -> foo (where '->' means 'depends on'). + // We first load foo with RTLD_LOCAL, and then load bar with RTLD_GLOBAL. + // This should bring foo and bar into the global scope. + + void *foo = dlopen(LIBFOO, RTLD_LOCAL | RTLD_NOW); + assert(foo); + assert(dlsym(foo, "foo")); + assert(dlsym(foo, "baz")); + assert(!dlsym(RTLD_DEFAULT, "foo")); + assert(!dlsym(RTLD_DEFAULT, "baz")); + + void *bar = dlopen(LIBBAR, RTLD_GLOBAL | RTLD_NOW); + assert(bar); + assert(dlsym(bar, "bar")); + assert(dlsym(RTLD_DEFAULT, "bar")); + assert(dlsym(RTLD_DEFAULT, "foo")); + assert(dlsym(RTLD_DEFAULT, "baz")); + + dlclose(foo); + dlclose(bar); +} -- cgit v1.2.3