diff options
Diffstat (limited to 'src/include/ipxe/tables.h')
-rw-r--r-- | src/include/ipxe/tables.h | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/src/include/ipxe/tables.h b/src/include/ipxe/tables.h index 60f8efd..28a87da 100644 --- a/src/include/ipxe/tables.h +++ b/src/include/ipxe/tables.h @@ -444,75 +444,4 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); pointer >= table_start ( table ) ; \ pointer-- ) -/****************************************************************************** - * - * Intel's C compiler chokes on several of the constructs used in this - * file. The workarounds are ugly, so we use them only for an icc - * build. - * - */ -#define ICC_ALIGN_HACK_FACTOR 128 -#ifdef __ICC - -/* - * icc miscompiles zero-length arrays by inserting padding to a length - * of two array elements. We therefore have to generate the - * __table_entries() symbols by hand in asm. - * - */ -#undef __table_entries -#define __table_entries( table, idx ) ( { \ - extern __table_type ( table ) \ - __table_temp_sym ( idx, __LINE__ ) [] \ - __table_entry ( table, idx ) \ - asm ( __table_entries_sym ( table, idx ) ); \ - __asm__ ( ".ifndef %c0\n\t" \ - ".section " __table_section ( table, idx ) "\n\t" \ - ".align %c1\n\t" \ - "\n%c0:\n\t" \ - ".previous\n\t" \ - ".endif\n\t" \ - : : "i" ( __table_temp_sym ( idx, __LINE__ ) ), \ - "i" ( __table_alignment ( table ) ) ); \ - __table_temp_sym ( idx, __LINE__ ); } ) -#define __table_entries_sym( table, idx ) \ - "__tbl_" __table_name ( table ) "_" #idx -#define __table_temp_sym( a, b ) \ - ___table_temp_sym( __table_, a, _, b ) -#define ___table_temp_sym( a, b, c, d ) a ## b ## c ## d - -/* - * icc ignores __attribute__ (( aligned (x) )) when it is used to - * decrease the compiler's default choice of alignment (which may be - * higher than the alignment actually required by the structure). We - * work around this by forcing the alignment to a large multiple of - * the required value (so that we are never attempting to decrease the - * default alignment) and then postprocessing the object file to - * reduce the alignment back down to the "real" value. - * - */ -#undef __table_alignment -#define __table_alignment( table ) \ - ( ICC_ALIGN_HACK_FACTOR * __alignof__ ( __table_type ( table ) ) ) - -/* - * Because of the alignment hack, we must ensure that the compiler - * never tries to place multiple objects within the same section, - * otherwise the assembler will insert padding to the (incorrect) - * alignment boundary. Do this by appending the line number to table - * section names. - * - * Note that we don't need to worry about padding between array - * elements, since the alignment is declared on the variable (i.e. the - * whole array) rather than on the type (i.e. on all individual array - * elements). - */ -#undef __table_section -#define __table_section( table, idx ) \ - ".tbl." __table_name ( table ) "." __table_str ( idx ) \ - "." __table_xstr ( __LINE__ ) -#define __table_xstr( x ) __table_str ( x ) - -#endif /* __ICC */ - #endif /* _IPXE_TABLES_H */ |