)

// Symbolizer implements the plugin.Symbolize interface.
type Symbolizer struct {
	Obj       plugin.ObjTool
	UI        plugin.UI
	Transport http.RoundTripper
}

// test taps for dependency injection
var symbolzSymbolize = symbolz.Symbolize
var localSymbolize = doLocalSymbolize
var demangleFunction = Demangle

// Symbolize attempts to symbolize profile p. First uses binutils on

			}
		}
		pbase.Scale(-1)
		p, m, err = combineProfiles([]*profile.Profile{p, pbase}, []plugin.MappingSources{m, mbase})
		if err != nil {
			return nil, err
		}
	}

	// Symbolize the merged profile.
	if err := o.Sym.Symbolize(s.Symbolize, m, p); err != nil {
		return nil, err
	}
	p.RemoveUninteresting()
	unsourceMappings(p)

	if s.Comment != "" {
		p.Comments = append(p.Comments, s.Comment)
	}

			name, path = ct[0], ct[1]
		}
		paths[name] = append(paths[name], path)
	}

	defaultPath := paths[""]
	b.llvmSymbolizer, b.llvmSymbolizerFound = chooseExe([]string{"llvm-symbolizer"}, []string{}, append(paths["llvm-symbolizer"], defaultPath...))
	b.addr2line, b.addr2lineFound = chooseExe([]string{"addr2line"}, []string{"gaddr2line"}, append(paths["addr2line"], defaultPath...))

// parameterized with a flag implementation, fetch and symbolize
// mechanisms.
package driver

import (
	"bytes"
	"fmt"
	"io"
	"os"
	"path/filepath"
	"regexp"
	"strings"

	"github.com/google/pprof/internal/plugin"
	"github.com/google/pprof/internal/report"
	"github.com/google/pprof/profile"
)

// PProf acquires a profile, and symbolizes it using a profile

				// take an outermost wrapper over nothing.
				continue
			}

			name := sf.name()
			file, line := u.fileLine(uf)
			if line == 0 {
				// Failure to symbolize
				continue
			}
			ctx.fn = &bytes(name)[0] // assume NUL-terminated
			ctx.line = uintptr(line)
			ctx.file = &bytes(file)[0] // assume NUL-terminated
			ctx.off = pc - fi.entry()
			ctx.res = 1

	// Strips C++ namespace prefix from a C++ function / method name.
	// NOTE: Make sure to keep the template parameters in the name. Normally,
	// template parameters are stripped from the C++ names but when
	// -symbolize=demangle=templates flag is used, they will not be.
	// See tests for examples.
	cppRegExp                = regexp.MustCompile(`^(?:[_a-zA-Z]\w*::)+(_*[A-Z]\w*::~?[_a-zA-Z]\w*(?:<.*>)?)`)

}

// HasFunctions determines if all locations in this profile have
// symbolized function information.
func (p *Profile) HasFunctions() bool {
	for _, l := range p.Location {
		if l.Mapping != nil && !l.Mapping.HasFunctions {
			return false
		}
	}
	return true
}

// HasFileLines determines if all locations in this profile have
// symbolized file and line number information.
func (p *Profile) HasFileLines() bool {

	default:
		t.Skipf("not yet supported on %s", platform)
	}
	got := runTestProg(t, "testprogcgo", "CrashTraceback")
	for i := 1; i <= 3; i++ {
		if !strings.Contains(got, fmt.Sprintf("cgo symbolizer:%d", i)) {
			t.Errorf("missing cgo symbolizer:%d", i)
		}
	}
}

func TestCgoCrashTracebackGo(t *testing.T) {
	t.Parallel()
	switch platform := runtime.GOOS + "/" + runtime.GOARCH; platform {
	case "darwin/amd64":

  }
}

void CopyStablehloModuleAttrs(ModuleOp stablehlo_module, XlaCallModuleOp op) {
  op->setAttr(kStablehloModuleAttrsAttrName,
              stablehlo_module->getAttrDictionary());
}

// Symbolizes `called_index` attributes in custom all ops to `called_func`.
LogicalResult SymbolizeCustomCallCalledIndex(
    ModuleOp module, llvm::ArrayRef<SymbolRefAttr> function_list) {
  WalkResult result =

		// produce incomplete results or crashes (hasCgoOnStack). Note that no
		// cgo callback related crashes have been observed yet. The main
		// motivation is to take advantage of a potentially registered cgo
		// symbolizer.
		pcBuf[0] = logicalStackSentinel
		if getg() == gp {
			nstk += callers(skip+1, pcBuf[1:])
		} else if gp != nil {
			nstk += gcallers(gp, skip, pcBuf[1:])
		}
	} else {