X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=lib_ppc%2Fextable.c;h=7408d5c96946acff06b7f49098dac6c113d0bba3;hb=116095eb1f0f7017ea8062aa8a8ba8ceecb430b5;hp=2f90df0be89b93ccf36ed00cc0e7ab2d4396a073;hpb=fe8c2806cdba70479e351299881a395dc2be7785;p=u-boot diff --git a/lib_ppc/extable.c b/lib_ppc/extable.c index 2f90df0be8..7408d5c969 100644 --- a/lib_ppc/extable.c +++ b/lib_ppc/extable.c @@ -37,6 +37,8 @@ * on our cache or tlb entries. */ +DECLARE_GLOBAL_DATA_PTR; + struct exception_table_entry { unsigned long insn, fixup; @@ -50,20 +52,15 @@ search_one_table(const struct exception_table_entry *first, const struct exception_table_entry *last, unsigned long value) { - while (first <= last) { - const struct exception_table_entry *mid; - long diff; + long diff; + while (first <= last) { + diff = first->insn - value; + if (diff == 0) + return first->fixup; + first++; + } - 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; + return 0; } int ex_tab_message = 1; @@ -75,8 +72,11 @@ search_exception_table(unsigned long addr) /* There is only the kernel to search. */ ret = search_one_table(__start___ex_table, __stop___ex_table-1, addr); + /* if the serial port does not hang in exception, printf can be used */ +#if !defined(CONFIG_SYS_SERIAL_HANG_IN_EXCEPTION) if (ex_tab_message) - printf("Bus Fault @ 0x%08lx, fixup 0x%08lx\n", addr, ret); + debug("Bus Fault @ 0x%08lx, fixup 0x%08lx\n", addr, ret); +#endif if (ret) return ret; return 0;