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authorTakeshi ISHII <2170248+mtei@users.noreply.github.com>2018-09-30 02:40:54 +0900
committerDrashna Jaelre <drashna@live.com>2018-09-29 10:40:54 -0700
commitcd215209efb0e236b691b51c3397495d4449623b (patch)
tree18889dc90a6d78f09299bd97350efe4ac7ecda01 /quantum/keymap_extras/keymap_plover.h
parent4f6495108087da13d7ee44c1f6ced03ebdfb934d (diff)
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Helix led_test keymap reduce size (#4023)
* Helix: make rgblight modes selectable. No change in build result. * edit the comment of helix/rev2/keymaps/default/keymap.c * Helix led_test keymap: reduced the size.
Diffstat (limited to 'quantum/keymap_extras/keymap_plover.h')
0 files changed, 0 insertions, 0 deletions
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#include <xen/config.h>
#include <xen/init.h>
#include <xen/perfc.h>
#include <xen/spinlock.h>
#include <asm/uaccess.h>

extern struct exception_table_entry __start___ex_table[];
extern struct exception_table_entry __stop___ex_table[];
extern struct exception_table_entry __start___pre_ex_table[];
extern struct exception_table_entry __stop___pre_ex_table[];

static void __init sort_exception_table(struct exception_table_entry *start,
                                        struct exception_table_entry *end)
{
    struct exception_table_entry *p, *q, tmp;

    for ( p = start; p < end; p++ )
    {
        for ( q = p-1; q > start; q-- )
            if ( p->insn > q->insn )
                break;
        if ( ++q != p )
        {
            tmp = *p;
            memmove(q+1, q, (p-q)*sizeof(*p));
            *q = tmp;
        }
    }
}

void __init sort_exception_tables(void)
{
    sort_exception_table(__start___ex_table, __stop___ex_table);
    sort_exception_table(__start___pre_ex_table, __stop___pre_ex_table);
}

static inline unsigned long
search_one_table(const struct exception_table_entry *first,
                 const struct exception_table_entry *last,
                 unsigned long value)
{
    const struct exception_table_entry *mid;
    long diff;

    while ( first <= last )
    {
        mid = (last - first) / 2 + first;
        diff = mid->insn - value;
        if (diff == 0)
            return mid->fixup;
        else if (diff < 0)
            first = mid+1;
        else
            last = mid-1;
    }
    return 0;
}

unsigned long
search_exception_table(unsigned long addr)
{
    return search_one_table(
        __start___ex_table, __stop___ex_table-1, addr);
}

unsigned long
search_pre_exception_table(struct cpu_user_regs *regs)
{
    unsigned long addr = (unsigned long)regs->eip;
    unsigned long fixup = search_one_table(
        __start___pre_ex_table, __stop___pre_ex_table-1, addr);
    if ( fixup )
    {
        dprintk(XENLOG_INFO, "Pre-exception: %p -> %p\n", _p(addr), _p(fixup));
        perfc_incr(exception_fixed);
    }
    return fixup;
}