On 05/24/2011 02:57 PM, Alan Cox wrote:
On Tue, 24 May 2011 12:38:45 +0200
"Arend van Spriel"<arend@xxxxxxxxxxxx> wrote:
On 05/24/2011 12:27 PM, Alan Cox wrote:
Not sure whether you mean the source code or the object code. I build
kernel with debug symbols so the sizes are bit higher.
nm will tell you the actual sizes. I think the n_gsm code is about 500
bytes or so and chunks of it inline.
Not counting the crc table I assume.
I forget but I think including - its a tiny tiny bit of code once inlined.
I used nm on both flavours.
dynamic crc table based on polynomial and bit order
---------------------------------------------------
00000000 00000026 T crc8
00000030 000000dc T crc8_create
fixed crc table with table selection based on bit order
-------------------------------------------------------
00000000 00000026 T crc8
00000030 0000002b T crc8_create
00000100 00000100 r crc8_table_lsb
00000000 00000100 r crc8_table_msb
The first requires the user to provide buffer to hold the table. The
difference is in the crc_create() function (maybe better named
crc_populate_table() in first, and crc_select_table() in second). It is
177 bytes larger. The crc calculating function is 38 bytes. Still pretty
small I would think.
Gr. AvS
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