From 3d503753b40469b6a19dcc3511f6eb8c55f6d122 Mon Sep 17 00:00:00 2001 From: Daniel Jacobowitz Date: Thu, 20 Jan 2005 19:59:54 -0500 Subject: [PATCH] [MIPS] Support /proc/kcore for MIPS I'm pretty sure that the CKSEG0 bits are wrong, but I did need to cover that region - because the SB-1 kernel links at 0xffffffff80100000 or so, disassembly and printing static variables don't work unless the debugger can read that region. Signed-off-by: Daniel Jacobowitz Signed-off-by: Ralf Baechle --- arch/mips/mm/init.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index 4ee91c9a556f..0ff9a348b843 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include @@ -200,6 +201,11 @@ static inline int page_is_ram(unsigned long pagenr) return 0; } +static struct kcore_list kcore_mem, kcore_vmalloc; +#ifdef CONFIG_64BIT +static struct kcore_list kcore_kseg0; +#endif + void __init mem_init(void) { unsigned long codesize, reservedpages, datasize, initsize; @@ -249,6 +255,16 @@ void __init mem_init(void) datasize = (unsigned long) &_edata - (unsigned long) &_etext; initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; +#ifdef CONFIG_64BIT + if ((unsigned long) &_text > (unsigned long) CKSEG0) + /* The -4 is a hack so that user tools don't have to handle + the overflow. */ + kclist_add(&kcore_kseg0, (void *) CKSEG0, 0x80000000 - 4); +#endif + kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT); + kclist_add(&kcore_vmalloc, (void *)VMALLOC_START, + VMALLOC_END-VMALLOC_START); + printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, " "%ldk reserved, %ldk data, %ldk init, %ldk highmem)\n", (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), -- GitLab