Date: Thu, 8 Oct 2020 22:00:31 +0000 (UTC) From: "Alfredo Dal'Ava Junior" <alfredo@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r366548 - head/sys/powerpc/powerpc Message-ID: <202010082200.098M0VOG095150@repo.freebsd.org>
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Author: alfredo Date: Thu Oct 8 22:00:31 2020 New Revision: 366548 URL: https://svnweb.freebsd.org/changeset/base/366548 Log: [PowerPC] add machdep.uprintf_signal sysctl Add support for sysctl 'machdep.uprintf_signal' that prints debugging information on trap signal. Reviewed by: jhibbits, luporl, bdragon Sponsored by: Eldorado Research Institute (eldorado.org.br) Differential Revision: https://reviews.freebsd.org/D26004 Modified: head/sys/powerpc/powerpc/trap.c Modified: head/sys/powerpc/powerpc/trap.c ============================================================================== --- head/sys/powerpc/powerpc/trap.c Thu Oct 8 20:56:11 2020 (r366547) +++ head/sys/powerpc/powerpc/trap.c Thu Oct 8 22:00:31 2020 (r366548) @@ -153,6 +153,11 @@ static struct powerpc_exception powerpc_exceptions[] = { EXC_LAST, NULL } }; +static int uprintf_signal; +SYSCTL_INT(_machdep, OID_AUTO, uprintf_signal, CTLFLAG_RWTUN, + &uprintf_signal, 0, + "Print debugging information on trap signal to ctty"); + #define ESR_BITMASK \ "\20" \ "\040b0\037b1\036b2\035b3\034PIL\033PRR\032PTR\031FP" \ @@ -489,6 +494,14 @@ trap(struct trapframe *frame) ksi.ksi_code = (int) ucode; /* XXX, not POSIX */ ksi.ksi_addr = (void *)addr; ksi.ksi_trapno = type; + if (uprintf_signal) { + uprintf("pid %d comm %s: signal %d code %d type %d " + "addr 0x%lx r1 0x%lx srr0 0x%lx srr1 0x%lx\n", + p->p_pid, p->p_comm, sig, ucode, type, + (u_long)addr, (u_long)frame->fixreg[1], + (u_long)frame->srr0, (u_long)frame->srr1); + } + trapsignal(td, &ksi); }
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