From f19ebbbc84d82398ddf408cd0817c60b84651457 Mon Sep 17 00:00:00 2001 From: Mark Kettenis Date: Fri, 7 Jul 2000 00:30:35 +0000 Subject: [PATCH] * config/i386/tm-linux.h: Add longjmp support. (JB_ELEMENT_SIZE, JB_PC): New defines. (GET_LONGJMP_TARGET): Define. (get_longjmp_target): Add prototype. --- gdb/ChangeLog | 5 +++++ gdb/config/i386/tm-linux.h | 17 +++++++++++++++++ 2 files changed, 22 insertions(+) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 82ebff9a4ac..7a924632fce 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,10 @@ 2000-07-07 Mark Kettenis + * config/i386/tm-linux.h: Add longjmp support. + (JB_ELEMENT_SIZE, JB_PC): New defines. + (GET_LONGJMP_TARGET): Define. + (get_longjmp_target): Add prototype. + * breakpoint.c (bpstat_what): Keep returning BPSTAT_WHAT_SET_LONGJMP_RESUME when hitting multiple longjmp() breakpoints instead of signalling an error by returning diff --git a/gdb/config/i386/tm-linux.h b/gdb/config/i386/tm-linux.h index d6a4616620c..1572a303abf 100644 --- a/gdb/config/i386/tm-linux.h +++ b/gdb/config/i386/tm-linux.h @@ -136,5 +136,22 @@ extern CORE_ADDR i386_linux_skip_solib_resolver (CORE_ADDR pc); /* N_FUN symbols in shared libaries have 0 for their values and need to be relocated. */ #define SOFUN_ADDRESS_MAYBE_MISSING + + +/* 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 5 /* Array index of saved PC. */ + +/* 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 /* #ifndef TM_LINUX_H */ -- 2.30.2