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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/hci/shell.c
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@@ -29,11 +29,6 @@
*
*/
static struct command commands[0]
__table_start ( struct command, commands );
static struct command commands_end[0]
__table_end ( struct command, commands );
/** The shell prompt string */
static const char shell_prompt[] = "gPXE> ";
@@ -65,7 +60,7 @@ static int help_exec ( int argc __unused, char **argv __unused ) {
unsigned int hpos = 0;
printf ( "\nAvailable commands:\n\n" );
for ( command = commands ; command < commands_end ; command++ ) {
for_each_table_entry ( command, COMMANDS ) {
hpos += printf ( " %s", command->name );
if ( hpos > ( 16 * 4 ) ) {
printf ( "\n" );