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bcc: FTBFS with LLVM 19

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      bcc-0.30.0-3.el10.src.rpm fails to build with LLVM 19 with the following error:

      [ 65%] Built target api-static
/builddir/build/BUILD/bcc-0.30.0/src/cc/frontends/clang/b_frontend_action.cc: In member function 'bool ebpf::MapVisitor::VisitCallExpr(clang::CallExpr*)':
/builddir/build/BUILD/bcc-0.30.0/src/cc/frontends/clang/b_frontend_action.cc:341:27: error: 'class llvm::StringRef' has no member named 'startswith'; did you mean 'starts_with'?
  341 |         if (!A->getName().startswith("maps"))
      |                           ^~~~~~~~~~
      |                           starts_with
/builddir/build/BUILD/bcc-0.30.0/src/cc/frontends/clang/b_frontend_action.cc: In member function 'bool ebpf::ProbeVisitor::assignsExtPtr(clang::Expr*, int*)':
/builddir/build/BUILD/bcc-0.30.0/src/cc/frontends/clang/b_frontend_action.cc:393:29: error: 'class llvm::StringRef' has no member named 'startswith'; did you mean 'starts_with'?
  393 |           if (!A->getName().startswith("maps"))
      |                             ^~~~~~~~~~
      |                             starts_with
/builddir/build/BUILD/bcc-0.30.0/src/cc/frontends/clang/b_frontend_action.cc: In member function 'bool ebpf::BTypeVisitor::VisitCallExpr(clang::CallExpr*)':
/builddir/build/BUILD/bcc-0.30.0/src/cc/frontends/clang/b_frontend_action.cc:940:27: error: 'class llvm::StringRef' has no member named 'startswith'; did you mean 'starts_with'?
  940 |         if (!A->getName().startswith("maps"))
      |                           ^~~~~~~~~~
      |                           starts_with
/builddir/build/BUILD/bcc-0.30.0/src/cc/frontends/clang/b_frontend_action.cc: In member function 'bool ebpf::BTypeVisitor::VisitVarDecl(clang::VarDecl*)':
/builddir/build/BUILD/bcc-0.30.0/src/cc/frontends/clang/b_frontend_action.cc:1458:23: error: 'class llvm::StringRef' has no member named 'startswith'; did you mean 'starts_with'?
 1458 |     if (!A->getName().startswith("maps"))
      |                       ^~~~~~~~~~
      |                       starts_with

      StringRef::startswith was marked for deprecation in LLVM 18 and finally removed in LLVM 19. Replacing uses of startswith with starts_with fixes the build issues.

      Issue tracked upstream in https://github.com/iovisor/bcc/issues/5125

              jmarchan@redhat.com Jerome Marchand
              rhn-support-jchecahi Jesus Checa Hidalgo
              Jerome Marchand Jerome Marchand
              Ziqian (Zamir) SUN Ziqian (Zamir) SUN
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                Created:
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