Notes on shared objects

2014-03-26 21:15:19 -07:00 · 2014-03-26 21:15:19 -07:00 · f9999eb490
commit f9999eb490
parent 14009e4198
1 changed files with 15 additions and 0 deletions
--- a/docs/notes.md
+++ b/docs/notes.md
@ -0,0 +1,15 @@
+# Shared Object C library
+
+This worked to build a libc.so:
+
+1. Remove `init.o` and `fini.o` from `libc.a`
+2. `i686-pc-toaru-gcc -shared -o libc.so -Wl,--whole-archive libc.a -Wl,--no-whole-archive`
+3. Remember to not attempt to build userspace like this!
+
+To build a shared object:
+
+    i686-pc-toaru-gcc -shared -o libfoo.so foo.c
+
+To build against a shared object in the local directory:
+
+    i686-pc-toaru-gcc -L`pwd` -o test test.c -lfoo