Date: Fri, 30 May 2003 13:30:13 -0700 (PDT) From: Juli Mallett <jmallett@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 32119 for review Message-ID: <200305302030.h4UKUDFZ068726@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=32119 Change 32119 by jmallett@jmallett_dalek on 2003/05/30 13:29:22 Enter DDB on breakpoint traps. This actually works. It also means we have to nest twice, for now. First the real problem, then panic("trap") then the debugger. This is enough to poke around a little. Affected files ... .. //depot/projects/mips/sys/mips/mips/trap.c#5 edit Differences ... ==== //depot/projects/mips/sys/mips/mips/trap.c#5 (text+ko) ==== @@ -25,6 +25,8 @@ * $FreeBSD$ */ +#include "opt_ddb.h" + #include <sys/param.h> #include <sys/kernel.h> #include <sys/systm.h> @@ -98,6 +100,18 @@ printf("bad virtual address = %p\n", badvaddr); printf(" cause = %x\n", cause); printf(" status = %lx\n", tf->tf_regs[TF_SR]); + + switch (code) { + case T_BREAK: +#if DDB + kdb_trap(code, tf); + break; +#endif + default: + goto dopanic; + } + return; +dopanic: if (panicstr != NULL) { printf("Double panic, resetting...\n"); cpu_reset();
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