From daefc6601ddd2c41a281b3a61664809437b7c0bb Mon Sep 17 00:00:00 2001 From: Alexander Kabaev Date: Wed, 4 Jan 2006 23:17:52 +0000 Subject: Add -w parameter which tells kgdb to open kmem-based targets in read-write mode. This allows one to use kgdb on /dev/mem and be able to patch memory on a live system. This is identical to what -wcore used to do in previous gdb versions for FreeBSD. Requested by: wpaul --- gnu/usr.bin/gdb/kgdb/main.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'gnu') diff --git a/gnu/usr.bin/gdb/kgdb/main.c b/gnu/usr.bin/gdb/kgdb/main.c index 0336bd846b3ac..12bc3c468f91c 100644 --- a/gnu/usr.bin/gdb/kgdb/main.c +++ b/gnu/usr.bin/gdb/kgdb/main.c @@ -302,7 +302,7 @@ main(int argc, char *argv[]) struct stat st; struct captured_main_args args; char *s; - int a, ch, quiet; + int a, ch, quiet, writecore; dumpnr = -1; @@ -327,8 +327,9 @@ main(int argc, char *argv[]) } quiet = 0; + writecore = 0; - while ((ch = getopt(argc, argv, "ac:d:fn:qr:v")) != -1) { + while ((ch = getopt(argc, argv, "ac:d:fn:qr:vw")) != -1) { switch (ch) { case 'a': annotation_level++; @@ -372,6 +373,9 @@ main(int argc, char *argv[]) case 'v': /* increase verbosity. */ verbose++; break; + case 'w': /* core file is writeable. */ + writecore = 1; + break; case '?': default: usage(); @@ -464,7 +468,8 @@ main(int argc, char *argv[]) } if (remote == NULL) { - kvm = kvm_openfiles(kernel, vmcore, NULL, O_RDONLY, kvm_err); + kvm = kvm_openfiles(kernel, vmcore, NULL, + writecore ? O_RDWR : O_RDONLY, kvm_err); if (kvm == NULL) errx(1, kvm_err); atexit(kgdb_atexit); -- cgit v1.3