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Support for stepping through longjmp in DJGPP programs:

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* 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.
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Eli Zaretskii 2001-07-29 08:03:36 +00:00
parent 2f83960e2c
commit 6c56c06965
3 changed files with 26 additions and 0 deletions
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8
gdb/ChangeLog
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@ -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>
Fix some PID/TPID fallout for HP/UX.

2
gdb/NEWS
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@ -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

16
gdb/config/i386/tm-go32.h
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@ -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 */