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https://github.com/rui314/mold.git
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64 lines
1.3 KiB
Bash
Executable File
64 lines
1.3 KiB
Bash
Executable File
#!/bin/bash
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export LC_ALL=C
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set -e
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CC="${CC:-cc}"
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CXX="${CXX:-c++}"
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GCC="${GCC:-gcc}"
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GXX="${GXX:-g++}"
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OBJDUMP="${OBJDUMP:-objdump}"
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MACHINE="${MACHINE:-$(uname -m)}"
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testname=$(basename "$0" .sh)
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echo -n "Testing $testname ... "
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cd "$(dirname "$0")"/../..
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t=out/test/elf/$testname
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mkdir -p $t
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cat <<EOF > $t/a.cc
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#include <stdio.h>
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int two() { return 2; }
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int live_var1 = 1;
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int live_var2 = two();
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int dead_var1 = 3;
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int dead_var2 = 4;
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void live_fn1() {}
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void live_fn2() { live_fn1(); }
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void dead_fn1() {}
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void dead_fn2() { dead_fn1(); }
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int main() {
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printf("%d %d\n", live_var1, live_var2);
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live_fn2();
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}
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EOF
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$CXX -B. -o $t/exe1 $t/a.cc -ffunction-sections -fdata-sections
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readelf --symbols $t/exe1 > $t/log.1
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grep -qv live_fn1 $t/log.1
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grep -qv live_fn2 $t/log.1
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grep -qv dead_fn1 $t/log.1
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grep -qv dead_fn2 $t/log.1
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grep -qv live_var1 $t/log.1
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grep -qv live_var2 $t/log.1
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grep -qv dead_var1 $t/log.1
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grep -qv dead_var2 $t/log.1
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$QEMU $t/exe1 | grep -q '1 2'
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$CXX -B. -o $t/exe2 $t/a.cc -ffunction-sections -fdata-sections -Wl,-gc-sections
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readelf --symbols $t/exe2 > $t/log.2
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grep -q live_fn1 $t/log.2
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grep -q live_fn2 $t/log.2
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grep -qv dead_fn1 $t/log.2
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grep -qv dead_fn2 $t/log.2
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grep -q live_var1 $t/log.2
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grep -q live_var2 $t/log.2
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grep -qv dead_var1 $t/log.2
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grep -qv dead_var2 $t/log.2
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$QEMU $t/exe2 | grep -q '1 2'
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echo OK
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