1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
# frozen_string_literal: true
RSpec.describe "loading dynamically linked library on a bundle exec context", realworld: true do
it "passes ENV right after argv in memory" do
create_file "foo.rb", <<~RUBY
require 'ffi'
module FOO
extend FFI::Library
ffi_lib './libfoo.so'
attach_function :Hello, [], :void
end
FOO.Hello()
RUBY
create_file "libfoo.c", <<~'C'
#include <stdio.h>
static int foo_init(int argc, char** argv, char** envp) {
if (argv[argc+1] == NULL) {
printf("FAIL\n");
} else {
printf("OK\n");
}
return 0;
}
#if defined(__APPLE__) && defined(__MACH__)
__attribute__((section("__DATA,__mod_init_func"), used, aligned(sizeof(void*))))
#else
__attribute__((section(".init_array")))
#endif
static void *ctr = &foo_init;
extern char** environ;
void Hello() {
return;
}
C
sys_exec "gcc -g -o libfoo.so -shared -fpic libfoo.c"
install_gemfile <<-G
source "https://rubygems.org"
gem 'ffi'
G
bundle "exec ruby foo.rb"
expect(out).to eq("OK")
end
end
|
