Ignore:
Timestamp:
Mar 12, 2019, 1:37:38 PM (3 years ago)
Author:
alain
Message:

Fix several bugs to use the instruction MMU in kernel mode
in replacement of the instruction address extension register,
and remove the "kentry" segment.

This version is running on the tsar_generic_iob" platform.

One interesting bug: the cp0_ebase defining the kernel entry point
(for interrupts, exceptions and syscalls) must be initialized
early in kernel_init(), because the VFS initialisation done by
kernel_ini() uses RPCs, and RPCs uses Inter-Processor-Interrup.

File:
1 edited

Legend:

Unmodified
Added
Removed
  • trunk/hal/tsar_mips32/kernel.ld

    r623 r624  
    11/***************************************************************************************
    22 * This is the linker script for the ALMOS-MKH kernel code on the TSAR architecture.
    3  * It describes the memory layout for the "kernel.elf" binary file, containing three
     3 * It describes the memory layout for the "kernel.elf" binary file, containing the two
    44 * loadable segments, that MUST be identity mapped for the TSAR architecture.
    55 *
    6  * WARNING : the seg_kentry_base and seg_kcode_base defined below must be coherent
     6 * WARNING : the seg_kcode_base defined below must be coherent
    77 * with the values defined in the boot_config.h file used by the TSAR bootloader.
    88 **************************************************************************************/
     
    1010/* Define the kernel code base addresses */
    1111
    12 seg_kcode_base  = 0x00008000;
    13 seg_kentry_base = 0x00004000;
     12seg_kcode_base  = 0x00004000;
    1413
    15 /* Set the entry point (e_entry field in the "kernel.elf" file header) */
     14/* Define the e_entry field in the "kernel.elf" file header) */
    1615
    1716ENTRY(kernel_init)
     
    2423        seg_kcode :
    2524        {
     25                *(.kentry)
     26                *(.switch)
    2627                *(.text)
    2728                *(.rodata*)
     
    3536                *(.kidle)
    3637                *(.kdata*)
     38        *(.scommon)
     39        *(.bss)
     40        *(.eh*)
    3741                *(.data*)
    3842        }
    39 
    40     . = seg_kentry_base;
    41     seg_kentry :
    42     {
    43                 *(.kentry)
    44                 *(.switch)
    45     }
    4643}
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