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IgTraceMMap Class Reference

List of all members.

Static Public Member Functions
static void	initialize (void)
	Initialise mapping profiling.

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Detailed Description

Definition at line 21 of file IgTraceMMap.cc.

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Member Function Documentation

void IgTraceMMap::initialize

(

void

)

[static]

Initialise mapping profiling.

Traps various system calls to keep track of memory usage, and if requested, leaks.

Definition at line 60 of file IgTraceMMap.cc.

References IgTrace::debug(), IgTrace::disable(), IgTrace::enable(), IgHook::hook(), IgTrace::initialize(), IgTrace::options(), Config::options, s_demangle, and s_initialized.

{
    if (s_initialized) return;

    s_demanglelen = 1024*1024-32;
    if (! (s_demanglehere = (char *) malloc (s_demanglelen)))
       return;

    const char  *options = IgTrace::options ();
    bool        enable = false;

    while (options && *options)
    {
        while (*options == ' ' || *options == ',')
            ++options;

        if (! strncmp (options, "mmap", 4))
        {
            enable = true;
            options += 4;
        }
        else if (! strncmp (options, "demangle", 8))
        {
            s_demangle = true;
            options += 8;
        }
        else
            options++;

        while (*options && *options != ',' && *options != ' ')
            options++;
    }

    if (! enable)
        return;

    if (! IgTrace::initialize ())
        return;

    IgTrace::disable ();
    IgHook::hook (domunmap_hook_main.raw);
    IgHook::hook (dommap32_hook_main.raw);
    IgHook::hook (dommap64_hook_main.raw);
    IgTrace::debug ("Tracing memory mappings\n");
    s_initialized = true;
    IgTrace::enable ();
}

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The documentation for this class was generated from the following file:

• IgTools/IgTrace/src/IgTraceMMap.cc

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