diff options
Diffstat (limited to 'ld/ldexp.c')
| -rw-r--r-- | ld/ldexp.c | 31 |
1 files changed, 28 insertions, 3 deletions
@@ -1,7 +1,5 @@ /* This module handles expression trees. - Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, - 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 - Free Software Foundation, Inc. + Copyright 1991-2013 Free Software Foundation, Inc. Written by Steve Chamberlain of Cygnus Support <sac@cygnus.com>. This file is part of the GNU Binutils. @@ -81,6 +79,7 @@ exp_print_token (token_code_type code, int infix_p) { GE, ">=" }, { LSHIFT, "<<" }, { RSHIFT, ">>" }, + { LOG2CEIL, "LOG2CEIL" }, { ALIGN_K, "ALIGN" }, { BLOCK, "BLOCK" }, { QUAD, "QUAD" }, @@ -135,6 +134,28 @@ exp_print_token (token_code_type code, int infix_p) } static void +make_log2ceil (void) +{ + bfd_vma value = expld.result.value; + bfd_vma result = -1; + bfd_boolean round_up = FALSE; + + do + { + result++; + /* If more than one bit is set in the value we will need to round up. */ + if ((value > 1) && (value & 1)) + round_up = TRUE; + } + while (value >>= 1); + + if (round_up) + result += 1; + expld.result.section = NULL; + expld.result.value = result; +} + +static void make_abs (void) { if (expld.result.section != NULL) @@ -242,6 +263,10 @@ fold_unary (etree_type *tree) make_abs (); break; + case LOG2CEIL: + make_log2ceil (); + break; + case '~': expld.result.value = ~expld.result.value; break; |