On Thu, May 17, 2012 at 10:37 PM, 王哲 <[email protected]> wrote:
> > > 2012/5/17 Javier Martinez Canillas <[email protected]> > >> On Thu, May 17, 2012 at 3:59 PM, 王哲 <[email protected]> wrote: >> > Hi all: >> > i am a kernelnewbies.during studying the linux system call,and >> > analysis the following code (linux kernel 2.6.38) >> > >> > 529ENTRY(system_call) >> > 530 RING0_INT_FRAME # can't unwind into user space anyway >> > 531 pushl %eax # save orig_eax >> > 532 CFI_ADJUST_CFA_OFFSET 4 >> > 533 SAVE_ALL >> > 534 GET_THREAD_INFO(%ebp) >> > 535 # system call tracing in operation / emulation >> > 536 testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%ebp) >> > 537 jnz syscall_trace_entry >> > 538 cmpl $(nr_syscalls), %eax >> > 539 jae syscall_badsys >> > 540syscall_call: >> > 541 call *sys_call_table(,%eax,4) >> > 542 movl %eax,PT_EAX(%esp) # store the return value >> > >> > Question: >> > i want to see what the SAVE_ALL have done.and can't find the >> > Macro SAVE_ALL >> > if anyone knows please help >> > > >> > Thanks >> > >> > _______________________________________________ >> > Kernelnewbies mailing list >> > [email protected] >> > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >> > >> >> http://lxr.free-electrons.com/ident?i=SAVE_ALL >> >> Thank you Javier Martinez Canillas for reply! > but the rearch result : > Defined as a preprocessor macro in: > > - arch/cris/include/arch-v32/arch/irq.h, line > 32<http://lxr.free-electrons.com/source/arch/cris/include/arch-v32/arch/irq.h#L32> > - arch/cris/include/arch-v10/arch/irq.h, line > 85<http://lxr.free-electrons.com/source/arch/cris/include/arch-v10/arch/irq.h#L85> > - arch/sparc/include/asm/asmmacro.h, line > 27<http://lxr.free-electrons.com/source/arch/sparc/include/asm/asmmacro.h#L27> > > is not in x86 Architecture. > Couldn't you find it by doing something like this? In your kernel source tree: $cd arch/x86 $grep -ircl ".macro SAVE_ALL" * > Best regards, >> >> -- >> Javier Martínez Canillas >> (+34) 682 39 81 69 >> Barcelona, Spain >> > > > _______________________________________________ > Kernelnewbies mailing list > [email protected] > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > >
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