[flashrom] [commit] r1259 - trunk
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svn at flashrom.org
Fri Feb 4 23:52:05 CET 2011
Author: hailfinger
Date: Fri Feb 4 23:52:04 2011
New Revision: 1259
URL: http://flashrom.org/trac/flashrom/changeset/1259
Log:
Improve debugging for unaligned erase in the flash chip emulator.
Fix out-of-bounds access for chip erase in the flash chip emulator.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net>
Acked-by: David Hendricks <dhendrix at google.com>
Modified:
trunk/dummyflasher.c
Modified: trunk/dummyflasher.c
==============================================================================
--- trunk/dummyflasher.c Fri Feb 4 22:37:59 2011 (r1258)
+++ trunk/dummyflasher.c Fri Feb 4 23:52:04 2011 (r1259)
@@ -395,7 +395,7 @@
}
offs = writearr[1] << 16 | writearr[2] << 8 | writearr[3];
if (offs & (emu_jedec_se_size - 1))
- msg_pdbg("Unaligned SECTOR ERASE 0x20\n");
+ msg_pdbg("Unaligned SECTOR ERASE 0x20: 0x%x\n", offs);
offs &= ~(emu_jedec_se_size - 1);
memset(flashchip_contents + offs, 0xff, emu_jedec_se_size);
break;
@@ -412,7 +412,7 @@
}
offs = writearr[1] << 16 | writearr[2] << 8 | writearr[3];
if (offs & (emu_jedec_be_52_size - 1))
- msg_pdbg("Unaligned BLOCK ERASE 0x52\n");
+ msg_pdbg("Unaligned BLOCK ERASE 0x52: 0x%x\n", offs);
offs &= ~(emu_jedec_be_52_size - 1);
memset(flashchip_contents + offs, 0xff, emu_jedec_be_52_size);
break;
@@ -429,7 +429,7 @@
}
offs = writearr[1] << 16 | writearr[2] << 8 | writearr[3];
if (offs & (emu_jedec_be_d8_size - 1))
- msg_pdbg("Unaligned BLOCK ERASE 0xd8\n");
+ msg_pdbg("Unaligned BLOCK ERASE 0xd8: 0x%x\n", offs);
offs &= ~(emu_jedec_be_d8_size - 1);
memset(flashchip_contents + offs, 0xff, emu_jedec_be_d8_size);
break;
@@ -444,12 +444,9 @@
msg_perr("CHIP ERASE 0x60 insize invalid!\n");
return 1;
}
- offs = writearr[1] << 16 | writearr[2] << 8 | writearr[3];
- if (offs & (emu_jedec_ce_60_size - 1))
- msg_pdbg("Unaligned CHIP ERASE 0x60\n");
- offs &= ~(emu_jedec_ce_60_size - 1);
+ /* JEDEC_CE_60_OUTSIZE is 1 (no address) -> no offset. */
/* emu_jedec_ce_60_size is emu_chip_size. */
- memset(flashchip_contents + offs, 0xff, emu_jedec_ce_60_size);
+ memset(flashchip_contents, 0xff, emu_jedec_ce_60_size);
break;
case JEDEC_CE_C7:
if (!emu_jedec_ce_c7_size)
@@ -462,10 +459,7 @@
msg_perr("CHIP ERASE 0xc7 insize invalid!\n");
return 1;
}
- offs = writearr[1] << 16 | writearr[2] << 8 | writearr[3];
- if (offs & (emu_jedec_ce_c7_size - 1))
- msg_pdbg("Unaligned CHIP ERASE 0xc7\n");
- offs &= ~(emu_jedec_ce_c7_size - 1);
+ /* JEDEC_CE_C7_OUTSIZE is 1 (no address) -> no offset. */
/* emu_jedec_ce_c7_size is emu_chip_size. */
memset(flashchip_contents, 0xff, emu_jedec_ce_c7_size);
break;
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