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| author | johannst <johannes.stoelp@gmail.com> | 2021-04-21 23:41:59 +0200 |
|---|---|---|
| committer | johannst <johannes.stoelp@gmail.com> | 2021-04-21 23:41:59 +0200 |
| commit | 85230524414b6d27664bf77c8584bfeced6c71cb (patch) | |
| tree | a407d634cbd379dbdf4451fee4abfd64aeaa5f67 /04_dynld_nostd/main.c | |
| parent | 1df4dfdcdbbaef7e5b32c5c0bfadec02b3ccd6f0 (diff) | |
| download | dynld-85230524414b6d27664bf77c8584bfeced6c71cb.tar.gz dynld-85230524414b6d27664bf77c8584bfeced6c71cb.zip | |
add support to resolve all relocations in PLT & RELA tables; add global variable as example to libgreet.so
Diffstat (limited to '04_dynld_nostd/main.c')
| -rw-r--r-- | 04_dynld_nostd/main.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/04_dynld_nostd/main.c b/04_dynld_nostd/main.c index ca250ef..a787158 100644 --- a/04_dynld_nostd/main.c +++ b/04_dynld_nostd/main.c @@ -6,13 +6,17 @@ // API of `libgreet.so`. extern const char* get_greet(); extern const char* get_greet2(); +extern int gCalled; void _start() { pfmt("Running _start() @ %s\n", __FILE__); - // Call function from libgreet.so -> generates PLT entry. + // Call function from libgreet.so -> generates PLT relocations. pfmt("get_greet() -> %s\n", get_greet()); pfmt("get_greet2() -> %s\n", get_greet2()); + // Reference global variable from libgreet.so -> generates RELA relocation. + pfmt("libgreet.so called %d times\n", gCalled); + _exit(0); } |