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author | Stefan Roese <sr@denx.de> | 2007-04-29 16:40:31 +0200 |
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committer | Stefan Roese <sr@denx.de> | 2007-04-29 16:40:31 +0200 |
commit | bd38b7ecfdf01e0b7bce551a0834226630be81c1 (patch) | |
tree | e86a79fb7791af81a3325d0e177abdc2d97624d4 /lib_ppc/extable.c | |
parent | 6f69bbc8f33f03f6a1adf845101c15a9917ff5f5 (diff) | |
parent | 14da5f7675bbb427c469e3f45006e027b6e21db9 (diff) | |
download | u-boot-imx-bd38b7ecfdf01e0b7bce551a0834226630be81c1.zip u-boot-imx-bd38b7ecfdf01e0b7bce551a0834226630be81c1.tar.gz u-boot-imx-bd38b7ecfdf01e0b7bce551a0834226630be81c1.tar.bz2 |
Merge with git://www.denx.de/git/u-boot.git
Diffstat (limited to 'lib_ppc/extable.c')
-rw-r--r-- | lib_ppc/extable.c | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/lib_ppc/extable.c b/lib_ppc/extable.c index d92f142..b14d661 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; @@ -55,13 +57,25 @@ search_one_table(const struct exception_table_entry *first, long diff; mid = (last - first) / 2 + first; - diff = mid->insn - value; - if (diff == 0) - return mid->fixup; - else if (diff < 0) - first = mid+1; + if ((ulong) mid > CFG_MONITOR_BASE) { + /* exception occurs in FLASH, before u-boot relocation. + * No relocation offset is needed. + */ + diff = mid->insn - value; + if (diff == 0) + return mid->fixup; + } else { + /* exception occurs in RAM, after u-boot relocation. + * A relocation offset should be added. + */ + diff = (mid->insn + gd->reloc_off) - value; + if (diff == 0) + return (mid->fixup + gd->reloc_off); + } + if (diff < 0) + first = mid + 1; else - last = mid-1; + last = mid - 1; } return 0; } @@ -75,8 +89,11 @@ 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(CFG_SERIAL_HANG_IN_EXCEPTION) if (ex_tab_message) printf("Bus Fault @ 0x%08lx, fixup 0x%08lx\n", addr, ret); +#endif if (ret) return ret; return 0; |