diff options
Diffstat (limited to 'tests/tst-static-option-runner.sh')
| -rwxr-xr-x | tests/tst-static-option-runner.sh | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/tests/tst-static-option-runner.sh b/tests/tst-static-option-runner.sh new file mode 100755 index 0000000..1515a7f --- /dev/null +++ b/tests/tst-static-option-runner.sh @@ -0,0 +1,124 @@ +#!/bin/sh +set -eu + +: "${CPU_AS:?}" "${CPU_LD:?}" "${CPU_RUN:?}" "${CPU_READELF:?}" "${CPU_AR:?}" + +TMP=${TMPDIR:-/tmp}/libmcpu-static-option-$$ +mkdir -p "$TMP/both" "$TMP/soonly" "$TMP/aonly" +trap 'rm -rf "$TMP"' EXIT HUP INT TERM + +cat > "$TMP/main.s" <<'EOS' +.global _life +.extern pick +.text +_start_life: + LDI r64@0x00000, 40 + CALL pick + MOV r64@0x00018, r64@0x00000 + LDI r32@0x00030, 0 + EXIT r32@0x00030 +EOS + +cat > "$TMP/wrapper.s" <<'EOS' +.global wrapper +.extern pick +.text +wrapper: + CALL pick + RET +EOS + +cat > "$TMP/pick-static.s" <<'EOS' +.global pick +.text +pick: + LDI r64@0x00008, 2 + IADD r64@0x00000, r64@0x00000, r64@0x00008 + RET +EOS + +cat > "$TMP/pick-shared.s" <<'EOS' +.global pick +.text +pick: + LDI r64@0x00008, 3 + IADD r64@0x00000, r64@0x00000, r64@0x00008 + RET +EOS + +"$CPU_AS" -o "$TMP/main.o" "$TMP/main.s" +"$CPU_AS" -o "$TMP/wrapper.o" "$TMP/wrapper.s" +"$CPU_AS" -o "$TMP/pick-static.o" "$TMP/pick-static.s" +"$CPU_AS" -o "$TMP/pick-shared.o" "$TMP/pick-shared.s" + +"$CPU_AR" rcs "$TMP/both/libpick.a" "$TMP/pick-static.o" +cp "$TMP/both/libpick.a" "$TMP/aonly/libpick.a" +"$CPU_LD" --shared --soname=libpick.so.1 \ + -o "$TMP/both/libpick.so.1.0.0" "$TMP/pick-shared.o" +ln -s libpick.so.1.0.0 "$TMP/both/libpick.so.1" +ln -s libpick.so.1 "$TMP/both/libpick.so" +cp "$TMP/both/libpick.so.1.0.0" "$TMP/soonly/libpick.so.1.0.0" +ln -s libpick.so.1.0.0 "$TMP/soonly/libpick.so.1" +ln -s libpick.so.1 "$TMP/soonly/libpick.so" + +# Normal ABI-v3 lookup prefers .so in a directory containing both providers. +"$CPU_LD" --dynamic --stack-size=4096 --no-heap \ + -L"$TMP/both" -lpick -o "$TMP/dynamic-shared" "$TMP/main.o" +"$CPU_READELF" -d "$TMP/dynamic-shared" > "$TMP/dynamic-shared.dynamic" +grep -q 'NEEDED.*\[libpick.so.1\]' "$TMP/dynamic-shared.dynamic" +[ "`"$CPU_RUN" --library-path="$TMP/both" \ + --int-reg=r64@0x00018 "$TMP/dynamic-shared"`" = 43 ] + +# --static changes only -l resolution. The output is still ABI-v3 ET_EXEC, +# but libpick.a is selected and no DT_NEEDED is emitted. +"$CPU_LD" --dynamic --static --stack-size=4096 --no-heap \ + -L"$TMP/both" -lpick -o "$TMP/dynamic-static" "$TMP/main.o" +"$CPU_READELF" -h "$TMP/dynamic-static" > "$TMP/dynamic-static.header" +"$CPU_READELF" -d "$TMP/dynamic-static" > "$TMP/dynamic-static.dynamic" +grep -q 'ABI Version:.*3' "$TMP/dynamic-static.header" +[ "`grep -c 'NEEDED' "$TMP/dynamic-static.dynamic" || true`" -eq 0 ] +[ "`"$CPU_RUN" --int-reg=r64@0x00018 "$TMP/dynamic-static"`" = 42 ] + +# --shared --static remains ABI-v3 ET_DYN with its own SONAME; the selected +# archive member is incorporated into the image and adds no NEEDED entry. +"$CPU_LD" --shared --static --soname=libwrapper.so.1 \ + -L"$TMP/both" -lpick -o "$TMP/libwrapper.so" "$TMP/wrapper.o" +"$CPU_READELF" -d "$TMP/libwrapper.so" > "$TMP/libwrapper.dynamic" +grep -q 'SONAME.*\[libwrapper.so.1\]' "$TMP/libwrapper.dynamic" +[ "`grep -c 'NEEDED' "$TMP/libwrapper.dynamic" || true`" -eq 0 ] + +# -r already accepts static archives only; --static is therefore a harmless +# explicit statement of the same library-selection policy. +"$CPU_LD" -r --static -L"$TMP/both" -lpick \ + -o "$TMP/partial.o" "$TMP/wrapper.o" +"$CPU_READELF" -s "$TMP/partial.o" > "$TMP/partial.sym" +grep -q '[[:space:]]pick$' "$TMP/partial.sym" + +# ABI-v1 is already fully static; accepting --static must preserve that path. +"$CPU_LD" --static --stack-size=4096 --no-heap \ + -L"$TMP/both" -lpick -o "$TMP/abi1-static" "$TMP/main.o" +[ "`"$CPU_RUN" --int-reg=r64@0x00018 "$TMP/abi1-static"`" = 42 ] + +# Forced-static lookup skips a .so-only earlier directory and continues until +# it finds libpick.a in a later directory. +"$CPU_LD" --dynamic --static --stack-size=4096 --no-heap \ + -L"$TMP/soonly" -L"$TMP/aonly" -lpick \ + -o "$TMP/later-archive" "$TMP/main.o" +[ "`"$CPU_RUN" --int-reg=r64@0x00018 "$TMP/later-archive"`" = 42 ] +"$CPU_READELF" -d "$TMP/later-archive" > "$TMP/later-archive.dynamic" +[ "`grep -c 'NEEDED' "$TMP/later-archive.dynamic" || true`" -eq 0 ] + +# With only a shared provider available, --static must fail and must not fall +# back to libpick.so. +if "$CPU_LD" --dynamic --static --stack-size=4096 --no-heap \ + -L"$TMP/soonly" -lpick -o "$TMP/missing-static" "$TMP/main.o" \ + >/dev/null 2>"$TMP/missing-static.err"; then + echo "--static unexpectedly selected a shared library" >&2 + exit 1 +fi +grep -q 'libpick.a' "$TMP/missing-static.err" + +"$CPU_LD" --help 2>&1 | grep -q -- '--static' +"$CPU_LD" --help 2>&1 | grep -q 'force every -l<name> lookup to use lib<name>.a' + +exit 0 |