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[tables] Redefine methods for accessing linker tables

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Intel's C compiler (icc) chokes on the zero-length arrays that we
currently use as part of the mechanism for accessing linker table
entries.  Abstract away the zero-length arrays, to make a port to icc
easier.

Introduce macros such as for_each_table_entry() to simplify the common
case of iterating over all entries in a linker table.

Represent table names as #defined string constants rather than
unquoted literals; this avoids visual confusion between table names
and C variable or type names, and also allows us to force a
compilation error in the event of incorrect table names.
This commit is contained in:
Michael Brown
2009-03-12 19:41:40 +00:00
parent 3ed468e0c5
commit 1266d7902b
48 changed files with 239 additions and 264 deletions
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7
src/drivers/bus/eisa.c
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@@ -7,11 +7,6 @@
#include <unistd.h>
#include <gpxe/eisa.h>
static struct eisa_driver eisa_drivers[0]
__table_start ( struct eisa_driver, eisa_drivers );
static struct eisa_driver eisa_drivers_end[0]
__table_end ( struct eisa_driver, eisa_drivers );
static void eisabus_remove ( struct root_device *rootdev );
/**
@@ -57,7 +52,7 @@ static int eisa_probe ( struct eisa_device *eisa ) {
eisa->slot, eisa->vendor_id, eisa->prod_id,
isa_id_string ( eisa->vendor_id, eisa->prod_id ), eisa->ioaddr );
for ( driver = eisa_drivers; driver < eisa_drivers_end; driver++ ) {
for_each_table_entry ( driver, EISA_DRIVERS ) {
for ( i = 0 ; i < driver->id_count ; i++ ) {
id = &driver->ids[i];
if ( id->vendor_id != eisa->vendor_id )