FreeChainXenon/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

tm.texi (MAX_OFILE_ALIGNMENT): Document default.

Browse source 
gcc/

2006-11-30  Carlos O'Donell  <carlos@codesourcery.com>

	* doc/tm.texi (MAX_OFILE_ALIGNMENT): Document default.
	* config/elfos.h [!MAX_OFILE_ALIGNMENT] (MAX_OFILE_ALIGNMENT): 
	Default is the largest alignment supported for 32-bit ELF and 
	representable on a 32-bit host.

From-SVN: r119374
This commit is contained in:
Carlos O'Donell 2006-11-30 19:25:08 +00:00 • committed by Carlos O'Donell
parent 2a061db501
commit 11d90e2dd0
3 changed files with 21 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
gcc/ChangeLog
View file

@ -1,3 +1,10 @@
2006-11-30 Carlos O'Donell <carlos@codesourcery.com>
* doc/tm.texi (MAX_OFILE_ALIGNMENT): Document default.
* config/elfos.h [!MAX_OFILE_ALIGNMENT] (MAX_OFILE_ALIGNMENT):
Default is the largest alignment supported for 32-bit ELF and
representable on a 32-bit host.
2006-11-30 Janis Johnson <janis187@us.ibm.com>
* config/dfp-bit.c (DFP_TO_INT): Use wider precision.

13
gcc/config/elfos.h
View file

@ -40,12 +40,15 @@ Boston, MA 02110-1301, USA. */
#undef USER_LABEL_PREFIX
#define USER_LABEL_PREFIX ""
/* Biggest alignment supported by the object file format of this
machine. Use this macro to limit the alignment which can be
specified using the `__attribute__ ((aligned (N)))' construct. If
not defined, the default value is `BIGGEST_ALIGNMENT'. */
/* The biggest alignment supported by ELF in bits. 32-bit ELF
supports section alignment up to (0x80000000 * 8), while
64-bit ELF supports (0x8000000000000000 * 8). If this macro
is not defined, the default is the largest alignment supported
by 32-bit ELF and representable on a 32-bit host. Use this
macro to limit the alignment which can be specified using
the `__attribute__ ((aligned (N)))' construct. */
#ifndef MAX_OFILE_ALIGNMENT
#define MAX_OFILE_ALIGNMENT (32768 * 8)
#define MAX_OFILE_ALIGNMENT (((unsigned int) 1 << 28) * 8)
#endif
/* Use periods rather than dollar signs in special g++ assembler names. */

6
gcc/doc/tm.texi
View file

@ -1078,6 +1078,12 @@ Biggest alignment supported by the object file format of this machine.
Use this macro to limit the alignment which can be specified using the
@code{__attribute__ ((aligned (@var{n})))} construct. If not defined,
the default value is @code{BIGGEST_ALIGNMENT}.
On systems that use ELF, the default (in @file{config/elfos.h}) is
the largest supported 32-bit ELF section alignment representable on
a 32-bit host e.g. @samp{(((unsigned HOST_WIDEST_INT) 1 << 28) * 8)}.
On 32-bit ELF the largest supported section alignment in bits is
@samp{(0x80000000 * 8)}, but this is not representable on 32-bit hosts.
@end defmac
@defmac DATA_ALIGNMENT (@var{type}, @var{basic-align})