Date: Sun, 14 Dec 1997 18:18:39 -0800 (PST) From: Tor Egge <tegge@FreeBSD.ORG> To: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG, cvs-sys@FreeBSD.ORG Subject: cvs commit: src/sys/i386/i386 microtime.s mp_machdep.c simplelock.s swtch.s src/sys/i386/include lock.h profile.h src/sys/i386/isa apic_ipl.s ipl.s Message-ID: <199712150218.SAA26139@freefall.freebsd.org>
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tegge 1997/12/14 18:18:39 PST
Modified files:
sys/i386/i386 microtime.s mp_machdep.c simplelock.s
swtch.s
sys/i386/include lock.h profile.h
sys/i386/isa apic_ipl.s ipl.s
Log:
Add support for low resolution SMP kernel profiling.
- A nonprofiling version of s_lock (called s_lock_np) is used
by mcount.
- When profiling is active, more registers are clobbered in
seemingly simple assembly routines. This means that some
callers needed to save/restore extra registers.
- The stack pointer must have space for a 'fake' return address
in idle, to avoid stack underflow.
Revision Changes Path
1.35 +3 -1 src/sys/i386/i386/microtime.s
1.64 +6 -1 src/sys/i386/i386/mp_machdep.c
1.7 +31 -1 src/sys/i386/i386/simplelock.s
1.66 +3 -2 src/sys/i386/i386/swtch.s
1.5 +4 -1 src/sys/i386/include/lock.h
1.13 +7 -4 src/sys/i386/include/profile.h
1.17 +5 -1 src/sys/i386/isa/apic_ipl.s
1.19 +7 -3 src/sys/i386/isa/ipl.s
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