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-rw-r--r--gdb/ChangeLog5
-rw-r--r--gdb/config/i386/tm-linux.h17
2 files changed, 22 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 82ebff9..7a92463 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,10 @@
2000-07-07 Mark Kettenis <kettenis@gnu.org>
+ * 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 d6a4616..1572a30 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 */