diff options
Diffstat (limited to 'bfd/vms-alpha.c')
| -rw-r--r-- | bfd/vms-alpha.c | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/bfd/vms-alpha.c b/bfd/vms-alpha.c index e31a9e4..5bf32d6 100644 --- a/bfd/vms-alpha.c +++ b/bfd/vms-alpha.c @@ -34,6 +34,7 @@ */ #include "sysdep.h" +#include <limits.h> #include "bfd.h" #include "bfdlink.h" #include "libbfd.h" @@ -71,6 +72,9 @@ #define MIN(a,b) ((a) < (b) ? (a) : (b)) +#ifndef CHAR_BIT +#define CHAR_BIT 8 +#endif /* The r_type field in a reloc is one of the following values. */ #define ALPHA_R_IGNORE 0 @@ -2520,10 +2524,27 @@ _bfd_vms_slurp_etir (bfd *abfd, struct bfd_link_info *info) _bfd_vms_etir_name (cmd)); return FALSE; } - if ((int)op2 < 0) /* Shift right. */ - op1 >>= -(int)op2; - else /* Shift left. */ - op1 <<= (int)op2; + if ((bfd_signed_vma) op2 < 0) + { + /* Shift right. */ + bfd_vma sign; + op2 = -op2; + if (op2 >= CHAR_BIT * sizeof (op1)) + op2 = CHAR_BIT * sizeof (op1) - 1; + /* op1 = (bfd_signed_vma) op1 >> op2; */ + sign = op1 & ((bfd_vma) 1 << (CHAR_BIT * sizeof (op1) - 1)); + op1 >>= op2; + sign >>= op2; + op1 = (op1 ^ sign) - sign; + } + else + { + /* Shift left. */ + if (op2 >= CHAR_BIT * sizeof (op1)) + op1 = 0; + else + op1 <<= op2; + } if (!_bfd_vms_push (abfd, op1, RELC_NONE)) /* FIXME: sym. */ return FALSE; break; |