)

// 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

// interface to the internal interface.
type internalSymbolizer struct {
	Symbolizer
}

func (s *internalSymbolizer) Symbolize(mode string, srcs plugin.MappingSources, prof *profile.Profile) error {
	isrcs := MappingSources{}
	for m, s := range srcs {
		isrcs[m] = s
	}
	return s.Symbolizer.Symbolize(mode, isrcs, prof)

			}
		}
		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)
	}

// error.
type Fetcher interface {
	Fetch(src string, duration, timeout time.Duration) (*profile.Profile, string, error)
}

// A Symbolizer introduces symbol information into a profile.
type Symbolizer interface {
	Symbolize(mode string, srcs MappingSources, prof *profile.Profile) error
}

// MappingSources map each profile.Mapping to the source of the profile.

			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*(?:<.*>)?)`)

// number of the structs that the functions expect to receive.
// Currently this must be zero.
//
// The symbolizer function may be nil, in which case the results of
// the traceback function will be displayed as numbers. If the
// traceback function is nil, the symbolizer function will never be
// called. The context function may be nil, in which case the

github.com/google/pprof/internal/elfexec
github.com/google/pprof/internal/graph
github.com/google/pprof/internal/measurement
github.com/google/pprof/internal/plugin
github.com/google/pprof/internal/report
github.com/google/pprof/internal/symbolizer
github.com/google/pprof/internal/symbolz
github.com/google/pprof/internal/transport
github.com/google/pprof/profile
github.com/google/pprof/third_party/svgpan