3 files changed, 71 insertions, 0 deletions
diff --git a/tests/fixtures/shared-libs/dynamic-liba.s b/tests/fixtures/shared-libs/dynamic-liba.s
new file mode 100644
index 0000000..f35cfe2
--- /dev/null
+++ b/tests/fixtures/shared-libs/dynamic-liba.s
@@ -0,0 +1,18 @@
+; Build/run from examples/shared-libs/:
+;   make
+;   make run
+;
+; make run prints, in order:
+;   43
+;   43
+;   42
+;   42
+;   41
+;
+; Shared-library implementation of foo: adds 2.
+.global foo
+.text
+foo:
+        LDI     r64@0x00008, 2
+        IADD    r64@0x00000, r64@0x00000, r64@0x00008
+        RET
diff --git a/tests/fixtures/shared-libs/dynamic-libb.s b/tests/fixtures/shared-libs/dynamic-libb.s
new file mode 100644
index 0000000..348b358
--- /dev/null
+++ b/tests/fixtures/shared-libs/dynamic-libb.s
@@ -0,0 +1,18 @@
+; Build/run from examples/shared-libs/:
+;   make
+;   make run
+;
+; make run prints, in order:
+;   43
+;   43
+;   42
+;   42
+;   41
+;
+; Shared-library implementation of foo: adds 3.
+.global foo
+.text
+foo:
+        LDI     r64@0x00008, 3
+        IADD    r64@0x00000, r64@0x00000, r64@0x00008
+        RET
diff --git a/tests/fixtures/shared-libs/dynamic-main.s b/tests/fixtures/shared-libs/dynamic-main.s
new file mode 100644
index 0000000..f296429
--- /dev/null
+++ b/tests/fixtures/shared-libs/dynamic-main.s
@@ -0,0 +1,35 @@
+; Build/run from examples/shared-libs/:
+;   make
+;   make run
+;
+; make run prints, in order:
+;   43
+;   43
+;   42
+;   42
+;   41
+;
+; ABI-v2 startup-dynamic executable example.
+; main-program itself defines foo(), but cpu-ld --dynamic retains CALL foo as
+; a preemptible runtime relocation.  cpu-run --ldpreload can therefore replace
+; it before _start executes.
+;
+; Without preload: foo adds 1 -> result 41.
+; With dynamic-liba.so: foo adds 2 -> result 42.
+; With dynamic-liba.so:dynamic-libb.so: rightmost strong GLOBAL wins, so
+; dynamic-libb.so foo adds 3 -> result 43.
+.global _life
+.global foo
+
+.text
+_start_life:
+        LDI     r64@0x00000, 40
+        CALL    foo
+        MOV     r64@0x00018, r64@0x00000
+        LDI     r32@0x00030, 0
+        EXIT    r32@0x00030
+
+foo:
+        LDI     r64@0x00008, 1
+        IADD    r64@0x00000, r64@0x00000, r64@0x00008
+        RET