89 lines
2.3 KiB
Nix
89 lines
2.3 KiB
Nix
|
{ stdenv }:
|
||
|
|
|
||
|
|
# This tests that libraries listed in LD_LIBRARY_PATH take precedence over those listed in RPATH.
|
||
|
|
|
||
|
|
let
|
||
|
|
# A simple test library: libgreeting.so which exports a single function getGreeting() returning the good old hello greeting.
|
||
|
|
libgreeting = stdenv.mkDerivation {
|
||
|
|
name = "libgreeting";
|
||
|
|
|
||
|
|
code = ''
|
||
|
|
const char* getGreeting() { return "Hello, world!"; }
|
||
|
|
'';
|
||
|
|
|
||
|
|
unpackPhase = ''
|
||
|
|
echo "$code" > libgreeting.c
|
||
|
|
'';
|
||
|
|
|
||
|
|
installPhase = ''
|
||
|
|
mkdir -p $out/lib
|
||
|
|
$CC -c -fpic libgreeting.c
|
||
|
|
$CC -shared libgreeting.o -o $out/lib/libgreeting.so
|
||
|
|
'';
|
||
|
|
};
|
||
|
|
|
||
|
|
# A variant of libgreeting.so that returns a different message.
|
||
|
|
libgoodbye = libgreeting.overrideAttrs (_: {
|
||
|
|
name = "libgoodbye";
|
||
|
|
code = ''
|
||
|
|
const char* getGreeting() { return "Goodbye, world!"; }
|
||
|
|
'';
|
||
|
|
});
|
||
|
|
|
||
|
|
# A simple consumer of libgreeting.so that just prints the greeting to stdout.
|
||
|
|
testProgram = stdenv.mkDerivation {
|
||
|
|
name = "greeting-test";
|
||
|
|
|
||
|
|
buildInputs = [ libgreeting ];
|
||
|
|
|
||
|
|
code = ''
|
||
|
|
#include <stdio.h>
|
||
|
|
|
||
|
|
extern const char* getGreeting(void);
|
||
|
|
|
||
|
|
int main() {
|
||
|
|
puts(getGreeting());
|
||
|
|
}
|
||
|
|
'';
|
||
|
|
|
||
|
|
unpackPhase = ''
|
||
|
|
echo "$code" > greeting-test.c
|
||
|
|
'';
|
||
|
|
|
||
|
|
installPhase = ''
|
||
|
|
mkdir -p $out/bin
|
||
|
|
$CC -c greeting-test.c
|
||
|
|
$CC greeting-test.o -lgreeting -o $out/bin/greeting-test
|
||
|
|
|
||
|
|
# Now test the installed binaries right after compiling them. In particular,
|
||
|
|
# don't do this in installCheckPhase because fixupPhase has been run by then!
|
||
|
|
(
|
||
|
|
export PATH=$out/bin
|
||
|
|
set -x
|
||
|
|
|
||
|
|
# Verify that our unmodified binary works as expected.
|
||
|
|
[ "$(greeting-test)" = "Hello, world!" ]
|
||
|
|
|
||
|
|
# And finally, test that a library in LD_LIBRARY_PATH takes precedence over the linked-in library.
|
||
|
|
[ "$(LD_LIBRARY_PATH=${libgoodbye}/lib greeting-test)" = "Goodbye, world!" ]
|
||
|
|
)
|
||
|
|
'';
|
||
|
|
|
||
|
|
};
|
||
|
|
in stdenv.mkDerivation {
|
||
|
|
name = "test-LD_LIBRARY_PATH";
|
||
|
|
nativeBuildInputs = [ testProgram ];
|
||
|
|
|
||
|
|
buildCommand = ''
|
||
|
|
# And for good measure, repeat the tests again from a separate derivation,
|
||
|
|
# as fixupPhase done by the stdenv can (and has!) affect the result.
|
||
|
|
|
||
|
|
[ "$(greeting-test)" = "Hello, world!" ]
|
||
|
|
[ "$(LD_LIBRARY_PATH=${libgoodbye}/lib greeting-test)" = "Goodbye, world!" ]
|
||
|
|
|
||
|
|
touch $out
|
||
|
|
'';
|
||
|
|
|
||
|
|
meta.platforms = stdenv.lib.platforms.linux;
|
||
|
|
}
|