HP gnu source-level debugger 5992-4701 Manuale Utente Scaricare il pdf (Pagina 172)

1. Complete one of the following steps to preload the librtc runtime library:

– Set the target application to preload librtc by using the +rtc option for the

chatr command.In addition to automatically loading the librtc library, the

+rtc option for the chatr command also maps the shared libraries as private.

To enable or disable the target application to preload the librtc runtime

library, enter the following command at the HP-UX prompt:

$ chatr +rtc <enable|disable> <executable>

NOTE: To attach and nd leaks for PA-32 applications from the startup, the

environment variable RTC_INIT should be set to on in addition to preloading

the librtc.[sl|so] library before starting the application, as follows:

$ RTC_INIT=on <executable>

– Instead of automatically preloading librtc and mapping the shared libraries,

you can explicitly preload the required librtc library.

In the case of HP 9000 systems, you must explicitly map the share libraries as

private by using the +d/jointfilesconvert/83344/bg enable option for the chatr command, as follows:

$ chatr +d/jointfilesconvert/83344/bg enable ./<executable>

(This step is not required on Integrity systems.)

To explicitly preload the librtc runtime library and start the target

application, enter one of the following commands:

◦ For 32 bit IPF applications:

LD_PRELOAD=/opt/langtools/lib/hpux32/librtc.so <executable>

◦ For 64 bit IPF applications:

LD_PRELOAD=/opt/langtools/lib/hpux64/librtc.so <executable>

◦ For 32 bit PA applications:

LD_PRELOAD=/opt/langtools/lib/librtc.sl <executable>

◦ For 64 bit PA applications:

LD_PRELOAD=/opt/langtools/lib/pa20_64/librtc.sl <executable>

NOTE: To attach and nd leaks for PA-32 applications from the startup, the

environment variable RTC_INIT should be set to on in addition to preloading

the librtc.[sl|so] library before starting the application, as follows:

$ LD_PRELOAD=/opt/langtools/lib/librtc.sl RTC_INIT=on <application>

If RTC_INIT is turned on, librtc starts recording heap information for PA32

process, by default. Hence, you must set this environment variable only when

it is required, and you must not export this environment variable for shell.

172 HP-UX Configuration-Specific Information

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HP gnu source-level debugger 5992-4701 Manuale Utente Pagina 172