Problems with macros LOAD_REG_ADDR and LOAD_REG_IMMEDIATE
I am having issues using LOAD_REG_ADDR and LOAD_REG_IMMEDIATE macros on a ppc64 kernel which I have tried on both 2.6.16 and 2.6.17 kernels. I noticed that these macros by default loading value 0 instead of the actual address. Is this a bug of the compiler that can be fixed, I noticed when I did objdump for head_64.S on the following function _GLOBAL(pSeries_secondary_smp_init) for the following instruction : LOAD_REG_IMMEDIATE(r13, paca) /* Get base vaddr of paca array */I noticed this in some calls, whereas some calls seem to get symbol address. Thanks *** Mitesh Meswani "Success is a journey, Not a Destination " Email : [EMAIL PROTECTED] ** ******** Mitesh R. Meswani Research Associate AHPCRC Research Group Ph.D. Candidate Department of Computer Science University of Texas at El Paso Tel: 915 747 6433 (O) Email: [EMAIL PROTECTED] ___ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
Finding cpuid in entry_64.S
Hello I am trying to find the cpuid when the functions that handle return from context switch and interrupts are called, based on the cpu the return code is executing on, I want to take some specific actions. I have been trying to use the following code segments : LOAD_REG_IMMEDIATE(r13, paca) /* Get base vaddr of paca array */ lhz r6,PACAHWCPUID(r13) /* Load HW procid from paca */ cmpwi 0,r6,7 /* Compare to our id */ My kernel is 2.6.16.21 and I am inserting the above code segments in the file entry_64.S in the following functions: _switch return from system calls, and _ret_from_except I can give line #s and the modified file itself. The problem is my kernel does not boot and halts at the point where it reads the command line boot parameters. Any help would be appreciated . Thanks, Mitesh ___ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
