diff options
Diffstat (limited to 'gdb/config/i386/tm-fbsd.h')
| -rw-r--r-- | gdb/config/i386/tm-fbsd.h | 56 |
1 files changed, 47 insertions, 9 deletions
diff --git a/gdb/config/i386/tm-fbsd.h b/gdb/config/i386/tm-fbsd.h index 0e2df32c52b..df278a802fb 100644 --- a/gdb/config/i386/tm-fbsd.h +++ b/gdb/config/i386/tm-fbsd.h @@ -1,5 +1,5 @@ -/* Target macro definitions for i386 running FreeBSD - Copyright (C) 1997 Free Software Foundation, Inc. +/* Target-dependent definitions for FreeBSD/i386. + Copyright (C) 1997, 2000 Free Software Foundation, Inc. This file is part of GDB. @@ -18,16 +18,54 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#include "i386/tm-i386bsd.h" +#ifndef TM_FBSD_H +#define TM_FBSD_H +#define HAVE_I387_REGS +#include "i386/tm-i386.h" -#undef NUM_REGS -#define NUM_REGS 14 +/* FreeBSD uses the old gcc convention for struct returns. */ +#define USE_STRUCT_CONVENTION(gcc_p, type) \ + generic_use_struct_convention (1, type) + -#undef IN_SOLIB_CALL_TRAMPOLINE -#define IN_SOLIB_CALL_TRAMPOLINE(pc, name) STREQ (name, "_DYNAMIC") +/* Support for longjmp. */ +/* Details about jmp_buf. It's supposed to be an array of integers. */ -extern i386_float_info (); -#define FLOAT_INFO i386_float_info () +#define JB_ELEMENT_SIZE 4 /* Size of elements in jmp_buf. */ +#define JB_PC 0 /* Array index of saved PC. */ + +/* Figure out where the longjmp will land. Store the address that + longjmp will jump to in *ADDR, and return non-zero if successful. */ + +extern int get_longjmp_target (CORE_ADDR *addr); +#define GET_LONGJMP_TARGET(addr) get_longjmp_target (addr) + + +/* Support for signal handlers. */ + +/* The sigtramp is above the user stack and immediately below + the user area. Using constants here allows for cross debugging. + These are tested for FreeBSD 3.4. */ + +#define SIGTRAMP_START(pc) 0xbfbfdf20 +#define SIGTRAMP_END(pc) 0xbfbfdff0 + +/* Offset to saved PC in sigcontext, from <sys/signal.h>. */ +#define SIGCONTEXT_PC_OFFSET 20 + + +/* Shared library support. */ + +#ifndef SVR4_SHARED_LIBS + +/* Return non-zero if we are in a shared library trampoline code stub. */ + +#define IN_SOLIB_CALL_TRAMPOLINE(pc, name) \ + (name && !strcmp(name, "_DYNAMIC")) + +#endif /* !SVR4_SHARED_LIBS */ + +#endif /* TM_FBSD_H */ |