diff options
| -rw-r--r-- | gdb/ChangeLog | 8 | ||||
| -rw-r--r-- | gdb/alphafbsd-tdep.c | 53 | ||||
| -rw-r--r-- | gdb/config/alpha/fbsd.mt | 2 | ||||
| -rw-r--r-- | gdb/config/alpha/tm-fbsd.h | 8 |
4 files changed, 69 insertions, 2 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 7a6525506c1..0c6d5248be4 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,11 @@ +2001-01-25 Mark Kettenis <kettenis@gnu.org> + + * config/alpha/tm-fbsd.h: Update copyright. + (USE_STRUCT_CONVENTION): Define in terms of + alphabsd_use_struct_convention. + * config/alpha/fbsd.mt (TDEPFILES): Add alphafbsd-tdep.c. + * alphafbsd-tdep.c: New file. + 2001-01-24 Fernando Nasser <fnasser@redhat.com> * top.c (print_gdb_version): Update Copyright year. diff --git a/gdb/alphafbsd-tdep.c b/gdb/alphafbsd-tdep.c new file mode 100644 index 00000000000..e2d47491067 --- /dev/null +++ b/gdb/alphafbsd-tdep.c @@ -0,0 +1,53 @@ +/* Target-dependent code for FreeBSD/Alpha. + Copyright 2001 Free Software Foundation, Inc. + + This file is part of GDB. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include "defs.h" +#include "value.h" + +int +alphafbsd_use_struct_convention (int gcc_p, struct type *type) +{ + enum type_code code; + int i; + + /* All aggregate types that won't fit in a register must be returned + in memory. */ + if (TYPE_LENGTH (type) > REGISTER_SIZE) + return 1; + + /* The only aggregate types that can be returned in a register are + structs and unions. Arrays must be returned in memory. */ + code = TYPE_CODE (type); + if (code != TYPE_CODE_STRUCT && code != TYPE_CODE_UNION) + return 1; + + /* We need to check if this struct/union is "integer" like. For + this to be true, the offset of each adressable subfield must be + zero. Note that bit fields are not addressable. */ + for (i = 0; i < TYPE_NFIELDS (type); i++) + { + /* If the field bitsize is non-zero, it isn't adressable. */ + if (TYPE_FIELD_BITPOS (type, i) != 0 + && TYPE_FIELD_BITSIZE (type, i) == 0) + return 1; + } + + return 0; +} diff --git a/gdb/config/alpha/fbsd.mt b/gdb/config/alpha/fbsd.mt index 6d33977c07a..48e54fa818b 100644 --- a/gdb/config/alpha/fbsd.mt +++ b/gdb/config/alpha/fbsd.mt @@ -1,3 +1,3 @@ # Target: FreeBSD/Alpha -TDEPFILES= alpha-tdep.o +TDEPFILES= alpha-tdep.o alphafbsd-tdep.o TM_FILE= tm-fbsd.h diff --git a/gdb/config/alpha/tm-fbsd.h b/gdb/config/alpha/tm-fbsd.h index 73086e463ec..315712c5bc9 100644 --- a/gdb/config/alpha/tm-fbsd.h +++ b/gdb/config/alpha/tm-fbsd.h @@ -1,5 +1,5 @@ /* Target-dependent definitions for FreeBSD/Alpha. - Copyright (C) 2000 Free Software Foundation, Inc. + Copyright 2000, 2001 Free Software Foundation, Inc. This file is part of GDB. @@ -23,6 +23,12 @@ #include "alpha/tm-alpha.h" +/* FreeBSD uses the old gcc convention for struct returns. */ + +#undef USE_STRUCT_CONVENTION +#define USE_STRUCT_CONVENTION(gcc_p, type) \ + alphafbsd_use_struct_convention (gcc_p, type) + /* Number of traps that happen between exec'ing the shell to run an inferior, and when we finally get to the inferior code. The default is right for FreeBSD. */ |