Date: Thu, 10 Feb 2011 19:13:25 +0300 From: Chagin Dmitry <dchagin@freebsd.org> To: Rui Paulo <rpaulo@freebsd.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r211804 - in head/sys: amd64/amd64 i386/i386 Message-ID: <20110210161325.GA29246@dchagin.static.corbina.ru> In-Reply-To: <201008250910.o7P9AWsv005437@svn.freebsd.org> References: <201008250910.o7P9AWsv005437@svn.freebsd.org>
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[-- Attachment #1 --] On Wed, Aug 25, 2010 at 09:10:32AM +0000, Rui Paulo wrote: > Author: rpaulo > Date: Wed Aug 25 09:10:32 2010 > New Revision: 211804 > URL: http://svn.freebsd.org/changeset/base/211804 > > Log: > Call the necessary DTrace function pointers when we have different kinds > of traps. > > Sponsored by: The FreeBSD Foundation > > Modified: > head/sys/amd64/amd64/trap.c > head/sys/i386/i386/trap.c > > Modified: head/sys/amd64/amd64/trap.c > ============================================================================== > --- head/sys/amd64/amd64/trap.c Wed Aug 25 08:49:21 2010 (r211803) > +++ head/sys/amd64/amd64/trap.c Wed Aug 25 09:10:32 2010 (r211804) > @@ -109,6 +109,13 @@ dtrace_doubletrap_func_t dtrace_doubletr > * implementation opaque. > */ > systrace_probe_func_t systrace_probe_func; > + > +/* > + * These hooks are necessary for the pid, usdt and fasttrap providers. > + */ > +dtrace_fasttrap_probe_ptr_t dtrace_fasttrap_probe_ptr; > +dtrace_pid_probe_ptr_t dtrace_pid_probe_ptr; > +dtrace_return_probe_ptr_t dtrace_return_probe_ptr; > #endif > > extern void trap(struct trapframe *frame); > @@ -239,6 +246,55 @@ trap(struct trapframe *frame) > if (dtrace_trap_func != NULL) > if ((*dtrace_trap_func)(frame, type)) > goto out; > + if (type == T_DTRACE_PROBE || type == T_DTRACE_RET || > + type == T_BPTFLT) { > + struct reg regs; > + > + regs.r_r15 = frame->tf_r15; > + regs.r_r14 = frame->tf_r14; > + regs.r_r13 = frame->tf_r13; > + regs.r_r12 = frame->tf_r12; > + regs.r_r11 = frame->tf_r11; > + regs.r_r10 = frame->tf_r10; > + regs.r_r9 = frame->tf_r9; > + regs.r_r8 = frame->tf_r8; > + regs.r_rdi = frame->tf_rdi; > + regs.r_rsi = frame->tf_rsi; > + regs.r_rbp = frame->tf_rbp; > + regs.r_rbx = frame->tf_rbx; > + regs.r_rdx = frame->tf_rdx; > + regs.r_rcx = frame->tf_rcx; > + regs.r_rax = frame->tf_rax; > + regs.r_rip = frame->tf_rip; > + regs.r_cs = frame->tf_cs; > + regs.r_rflags = frame->tf_rflags; > + regs.r_rsp = frame->tf_rsp; > + regs.r_ss = frame->tf_ss; > + if (frame->tf_flags & TF_HASSEGS) { > + regs.r_ds = frame->tf_ds; > + regs.r_es = frame->tf_es; > + regs.r_fs = frame->tf_fs; > + regs.r_gs = frame->tf_gs; > + } else { > + regs.r_ds = 0; > + regs.r_es = 0; > + regs.r_fs = 0; > + regs.r_gs = 0; hi, maybe use fill_regs() would more appropriate here? -- Have fun! chd [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.16 (FreeBSD) iEYEARECAAYFAk1UDqQACgkQ0t2Tb3OO/O16swCgvH/nvHHS8kVZPJudogpdRzZf DQkAn3i3QDJpVNs3CB3+r7/TOVqCRlIX =o0c/ -----END PGP SIGNATURE-----help
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