File: avoid-wx-segment.c

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llvm-toolchain-21 1%3A21.1.6-3
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// Test bolt instrumentation won't generate a binary with any segment that
// is writable and executable. Basically we want to put `.bolt.instr.counters`
// section into its own segment, separated from its surrounding RX sections.

// REQUIRES: system-linux

void foo() {}
void bar() { foo(); }

// RUN: %clang %cflags -c %s -o %t.o
// RUN: ld.lld -q -o %t.so %t.o -shared --init=foo --fini=foo
// RUN: llvm-bolt --instrument %t.so -o %tt.so
// RUN: llvm-readelf -l %tt.so | FileCheck %s
// CHECK-NOT: RWE
// CHECK: {{[0-9]*}} .bolt.instr.counters {{$}}