Re: system call handling

2000-11-01 Thread Jamie Lokier
Richard B. Johnson wrote: > If you designed it with just one call-gate, with one entry point, > you would have exactly what we have now except you would execute > a `call CALL_GATE` instead of `int 0x80`. This turns out to be > 6 of one and 1/2 dozen of another when it comes to performance. The f

Re: system call handling

2000-11-01 Thread Richard B. Johnson
On Wed, 1 Nov 2000 [EMAIL PROTECTED] wrote: > Hi, > > By looking into the structure of GDT as used by linux kernel(file > include/asm/desc.c, kernel ver 2.4), it appears as if linux kernel does not > use the "call gate descriptors" for system call handling. Is this cor

Re: system call handling

2000-11-01 Thread Petko Manolov
[EMAIL PROTECTED] wrote: > > Hi, > > By looking into the structure of GDT as used by linux kernel(file > include/asm/desc.c, kernel ver 2.4), it appears as if linux kernel does not > use the "call gate descriptors" for system call handling. Is this correct? You

system call handling

2000-11-01 Thread mdaljeet
Hi, By looking into the structure of GDT as used by linux kernel(file include/asm/desc.c, kernel ver 2.4), it appears as if linux kernel does not use the "call gate descriptors" for system call handling. Is this correct? If it is correct then how does the system calls are handled by