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authorjhb <jhb@FreeBSD.org>2002-09-19 18:46:29 +0000
committerjhb <jhb@FreeBSD.org>2002-09-19 18:46:29 +0000
commit03dc7bc4a4835049f8702ae7cd0097de1673c8f5 (patch)
treec1476f925d34a2b15d6347328a15e33a91997d2f /sys/ddb
parent862a7a02065e4deed0e9939de05e07f75b74325c (diff)
downloadFreeBSD-src-03dc7bc4a4835049f8702ae7cd0097de1673c8f5.zip
FreeBSD-src-03dc7bc4a4835049f8702ae7cd0097de1673c8f5.tar.gz
Implement db_print_backtrace() if DDB is compiled into the kernel. This
MD function is just a wrapper around db_stack_trace_cmd() that prints out a backtrace of curthread. Currently, this function is only implemented on i386 and alpha (and the alpha version isn't quite tested yet, will do that in a bit). Other changes: - For i386, fix a bug in the raw frame address case. The eip we extract from the passed in frame address does not match the frame we received. Thus, instead of printing a bogus frame with the wrong eip, go ahead and advance frame down to the same frame as the eip we are using. - For alpha, attempt to add a way of doing a raw trace for alpha. Instead of passing a frame address in 'addr', pass in a pointer to a structure containing PC and KSP and use those to start the backtrace. The alpha db_print_backtrace() uses asm to read in the current PC and KSP values into such a request. Tested on: i386 Requested by: many
Diffstat (limited to 'sys/ddb')
-rw-r--r--sys/ddb/ddb.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/ddb/ddb.h b/sys/ddb/ddb.h
index ce3ffc4..1eb87ba 100644
--- a/sys/ddb/ddb.h
+++ b/sys/ddb/ddb.h
@@ -134,6 +134,9 @@ db_cmdfcn_t ipc_port_print;
db_cmdfcn_t vm_page_print;
#endif
+/* Scare the user with backtrace of curthread to console. */
+void db_print_backtrace(void);
+
/*
* Command table.
*/
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