January 2004
Intermediate to advanced
432 pages
11h 1m
English
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Signal Handler Launch
The function in the kernel that arranges for the signal handler to be called is sendsig(). Its job is to set up the stack frames for the call to the user function. It also has to make sure that when the routine finishes, it returns to the right place to clean up the signal data structures. It calls a variety of utility routines to do the work it has to do.
The first is sendsig_alloc_sigcontext(), which allocates space on the stack to hold the sigcontext structure. This space be can either on the user's stack or on a separate signal stack depending on the flags for this signal. Data is copied into this sigcontext structure by sendsig_fillin_slm(), sendsig_copyoutsavestate(), and sendsig_fillin_xsi().
The stack frame used ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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