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| author | Eli Zaretskii <eliz@gnu.org> | 2001-07-29 08:14:45 +0000 |
|---|---|---|
| committer | Eli Zaretskii <eliz@gnu.org> | 2001-07-29 08:14:45 +0000 |
| commit | 22b089e625f66921a8199a117007c8c712519037 (patch) | |
| tree | 210b736e4a82fdbd6e51719c8c32effa81f24067 | |
| parent | b80d7c8eb8898f1dea2d6d78cd0f2003f2dc8a08 (diff) | |
| download | gdb-22b089e625f66921a8199a117007c8c712519037.tar.gz | |
Support for stepping through longjmp in DJGPP programs:
* config/i386/tm-go32.h (JB_ELEMENT_SIZE, JB_PC): New macros.
(GET_LONGJMP_TARGET): Define to call get_longjmp_target.
(get_longjmp_target): Add prototype.
| -rw-r--r-- | gdb/ChangeLog | 8 | ||||
| -rw-r--r-- | gdb/NEWS | 2 | ||||
| -rw-r--r-- | gdb/config/i386/tm-go32.h | 16 |
3 files changed, 26 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index ac8e0a1c1b6..741377a1387 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,11 @@ +2001-07-29 Eli Zaretskii <eliz@is.elta.co.il> + + Support for stepping through longjmp in DJGPP programs: + + * config/i386/tm-go32.h (JB_ELEMENT_SIZE, JB_PC): New macros. + (GET_LONGJMP_TARGET): Define to call get_longjmp_target. + (get_longjmp_target): Add prototype. + 2001-07-28 Andrew Cagney <ac131313@redhat.com> * version.in: Bump version number to 5.0.90-cvs. @@ -165,6 +165,8 @@ which is part of the DJGPP development kit). DWARF2 debug info is now supported. +It is now possible to `step' and `next' through calls to `longjmp'. + * Changes in documentation. All GDB documentation was converted to GFDL, the GNU Free diff --git a/gdb/config/i386/tm-go32.h b/gdb/config/i386/tm-go32.h index f416396a3f5..024f4fbe355 100644 --- a/gdb/config/i386/tm-go32.h +++ b/gdb/config/i386/tm-go32.h @@ -48,4 +48,20 @@ #undef FRAME_SAVED_PC #define FRAME_SAVED_PC(FRAME) (read_memory_integer ((FRAME)->frame + 4, 4)) +/* Support for longjmp. */ + +/* Details about jmp_buf. It's supposed to be an array of integers. */ + +#define JB_ELEMENT_SIZE 4 /* Size of elements in jmp_buf. */ +#define JB_PC 8 /* Array index of saved PC inside jmp_buf. */ + +/* 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. */ + +#define GET_LONGJMP_TARGET(addr) get_longjmp_target (addr) +extern int get_longjmp_target (CORE_ADDR *addr); + #endif /* TM_GO32_H */ |