diff options
Diffstat (limited to 'tests/tst-dynamic-runner.sh')
| -rwxr-xr-x | tests/tst-dynamic-runner.sh | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/tests/tst-dynamic-runner.sh b/tests/tst-dynamic-runner.sh new file mode 100755 index 0000000..2ebc76f --- /dev/null +++ b/tests/tst-dynamic-runner.sh @@ -0,0 +1,96 @@ +#!/bin/sh +set -eu +: "${CPU_AS:?}" "${CPU_LD:?}" "${CPU_RUN:?}" "${TEST_SRCDIR:?}" +TMP=${TMPDIR:-/tmp}/libcpu-dynamic-$$ +mkdir -p "$TMP" +trap 'rm -rf "$TMP"' EXIT HUP INT TERM +EXAMPLES=`cd "$TEST_SRCDIR/fixtures/shared-libs" && pwd` +"$CPU_AS" -o "$TMP/main.o" "$EXAMPLES/dynamic-main.s" +"$CPU_AS" -o "$TMP/a.o" "$EXAMPLES/dynamic-liba.s" +"$CPU_AS" -o "$TMP/b.o" "$EXAMPLES/dynamic-libb.s" +"$CPU_LD" --dynamic --stack-size=4096 --no-heap -o "$TMP/main-program" "$TMP/main.o" +"$CPU_LD" --shared --soname=liba.so.1 -o "$TMP/liba.so" "$TMP/a.o" +"$CPU_LD" --shared --soname=libb.so.1 -o "$TMP/libb.so" "$TMP/b.o" +[ "`"$CPU_RUN" --int-reg=r64@0x00018 "$TMP/main-program"`" = 41 ] +[ "`"$CPU_RUN" --int-reg=r64@0x00018 --ldpreload="$TMP/liba.so" "$TMP/main-program"`" = 42 ] +[ "`"$CPU_RUN" --int-reg=r64@0x00018 --ldpreload="$TMP/liba.so:$TMP/libb.so" "$TMP/main-program"`" = 43 ] +[ "`"$CPU_RUN" --int-reg=r64@0x00018 --ldpreload="$TMP/libb.so:$TMP/liba.so" "$TMP/main-program"`" = 42 ] + +# LOCAL references inside ET_DYN are private to that module, but their +# section-relative values still need startup rebasing by the module base. +# local_helper is deliberately not exported. Without LOCAL ET_DYN runtime +# relocation the CALL below contains the shared-object-relative offset and +# jumps to the wrong process PROGRAM address after the library is placed +# behind the executable. +cat > "$TMP/local-main.s" <<'EOS' +.global _life +.extern local_api +.text +_start_life: + LDI r64@0x00000, 40 + CALL local_api + MOV r64@0x00018, r64@0x00000 + LDI r32@0x00030, 0 + EXIT r32@0x00030 +EOS +cat > "$TMP/local-lib.s" <<'EOS' +.global local_api +.text +local_api: + CALL local_helper + RET +local_helper: + LDI r64@0x00008, 7 + IADD r64@0x00000, r64@0x00000, r64@0x00008 + RET +EOS +"$CPU_AS" -o "$TMP/local-main.o" "$TMP/local-main.s" +"$CPU_AS" -o "$TMP/local-lib.o" "$TMP/local-lib.s" +"$CPU_LD" --dynamic --stack-size=4096 --no-heap -o "$TMP/local-program" "$TMP/local-main.o" +"$CPU_LD" --shared --soname=local.so.1 -o "$TMP/local.so" "$TMP/local-lib.o" +[ "`"$CPU_RUN" --int-reg=r64@0x00018 --ldpreload="$TMP/local.so" "$TMP/local-program"`" = 47 ] + +# ABI-v1 static executable must reject preload rather than silently relink. +"$CPU_LD" --stack-size=4096 --no-heap -o "$TMP/static-program" "$TMP/main.o" +if "$CPU_RUN" --ldpreload="$TMP/liba.so" "$TMP/static-program" >/dev/null 2>&1; then + echo "ABI-v1 executable unexpectedly accepted --ldpreload" >&2 + exit 1 +fi + +# An ABI-v3 executable with an unresolved import but no DT_NEEDED provider +# remains a startup load error. Recursive loading cannot invent dependencies. +cat > "$TMP/missing.s" <<'EOS' +.global _life +.extern missing_function +.text +_start_life: + CALL missing_function + LDI r32@0x00030, 0 + EXIT r32@0x00030 +EOS +"$CPU_AS" -o "$TMP/missing.o" "$TMP/missing.s" +"$CPU_LD" --dynamic --stack-size=4096 --no-heap -o "$TMP/missing-program" "$TMP/missing.o" +if "$CPU_RUN" "$TMP/missing-program" >/dev/null 2>&1; then + echo "unresolved dynamic symbol unexpectedly reached execution" >&2 + exit 1 +fi + +# Shared objects own no process STACK/HEAP policy. +if "$CPU_LD" --shared --soname=bad.so.1 --stack-size=4096 -o "$TMP/bad.so" "$TMP/a.o" >/dev/null 2>&1; then + echo "cpu-ld --shared unexpectedly accepted --stack-size" >&2 + exit 1 +fi +if "$CPU_LD" --shared -o "$TMP/no-soname.so" "$TMP/a.o" >/dev/null 2>&1; then + echo "ABI-v3 shared object unexpectedly accepted without SONAME" >&2 + exit 1 +fi +if "$CPU_LD" --shared --soname=path/bad.so.1 -o "$TMP/bad-soname.so" "$TMP/a.o" >/dev/null 2>&1; then + echo "ABI-v3 shared object unexpectedly accepted pathname SONAME" >&2 + exit 1 +fi +if "$CPU_LD" --dynamic --soname=main.so.1 --stack-size=4096 --no-heap \ + -o "$TMP/bad-main" "$TMP/main.o" >/dev/null 2>&1; then + echo "ABI-v3 executable unexpectedly accepted SONAME" >&2 + exit 1 +fi +exit 0 |