diff options
Diffstat (limited to 'gdb/config')
| -rw-r--r-- | gdb/config/i386/tm-i386nw.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gdb/config/i386/tm-i386nw.h b/gdb/config/i386/tm-i386nw.h index 45af050..087b09c 100644 --- a/gdb/config/i386/tm-i386nw.h +++ b/gdb/config/i386/tm-i386nw.h @@ -29,3 +29,22 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* Stop backtracing when we wander into main. */ #define FRAME_CHAIN_VALID_ALTERNATE + + +/* Offsets (in target ints) into jmp_buf. Not defined in any system header + file, so we have to step through setjmp/longjmp with a debugger and figure + them out. */ + +#define JB_ELEMENT_SIZE 4 /* jmp_buf[] is array of ints */ + +#define JB_PC 6 /* Setjmp()'s return PC saved here */ + +/* Figure out where the longjmp will land. Slurp the args out of the stack. + We expect the first arg to be a pointer to the jmp_buf structure from which + we extract the pc (JB_PC) that we will land at. The pc is copied into ADDR. + This routine returns true on success */ + +extern int +get_longjmp_target PARAMS ((CORE_ADDR *)); + +#define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR) |