diff options
Diffstat (limited to 'gdb/i386bsd-nat.c')
| -rw-r--r-- | gdb/i386bsd-nat.c | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/gdb/i386bsd-nat.c b/gdb/i386bsd-nat.c index ad5a301..a941d5b 100644 --- a/gdb/i386bsd-nat.c +++ b/gdb/i386bsd-nat.c @@ -382,19 +382,39 @@ kernel_u_size (void) return (sizeof (struct user)); } -/* See i386bsd-tdep.c. */ -extern int i386bsd_sigcontext_pc_offset; - void _initialize_i386bsd_nat (void) { + int sc_pc_offset; + /* To support the recognition of signal handlers, i386bsd-tdep.c hardcodes some constants. Inclusion of this file means that we are compiling a native debugger, which means that we can use the system header files and sysctl(3) to get at the relevant information. */ +#if defined (__FreeBSD_version) && __FreeBSD_version >= 400011 + extern int i386fbsd4_sc_pc_offset; +#define SC_PC_OFFSET i386fbsd4_sc_pc_offset +#elif defined (NetBSD) || defined (__NetBSD_Version__) + extern int i386nbsd_sc_pc_offset; +#define SC_PC_OFFSET i386nbsd_sc_pc_offset +#else + extern int i386bsd_sc_pc_offset; +#define SC_PC_OFFSET i386bsd_sc_pc_offset +#endif + /* Override the default value for the offset of the program counter in the sigcontext structure. */ - i386bsd_sigcontext_pc_offset = offsetof (struct sigcontext, sc_pc); + sc_pc_offset = offsetof (struct sigcontext, sc_pc); + + if (SC_PC_OFFSET != sc_pc_offset) + { + warning ("\ +offsetof (struct sigcontext, sc_pc) yields %d instead of %d.\n\ +Please report this to <bug-gdb@gnu.org>.", + sc_pc_offset, SC_PC_OFFSET); + } + + SC_PC_OFFSET = sc_pc_offset; } |