Differential D18387

amd64: handle small memmove buffers with overlapping stores
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Authored by mjg on Nov 30 2018, 9:02 AM.

Details

Reviewers

kib

Commits

rS341351: amd64: handle small memmove buffers with overlapping stores

Summary

Similar to https://reviews.freebsd.org/D17660 . Handling sizes of > 32 backwards will be updated later.

Diff Detail

Repository

rS FreeBSD src repository - subversion

Lint

Lint Not Applicable

Unit

Tests Not Applicable

Event Timeline

mjg created this revision.Nov 30 2018, 9:02 AM

kib accepted this revision.Nov 30 2018, 3:52 PM

This revision is now accepted and ready to land.Nov 30 2018, 3:52 PM

Closed by commit rS341351: amd64: handle small memmove buffers with overlapping stores (authored by mjg). · Explain WhyNov 30 2018, 8:59 PM

This revision was automatically updated to reflect the committed changes.

Herald added a subscriber: imp. · View Herald TranscriptNov 30 2018, 8:59 PM

Revision Contents
Changeset List

Path

Size

head/

lib/

libc/

amd64/

string/

memmove.S

92 lines

sys/

amd64/

support.S

91 lines

Diff 51449

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head/lib/libc/amd64/string/memmove.S

	Show All 37 Lines
	/* Local stuff. */			/* Local stuff. */

	#include "patchlevel.h"			#include "patchlevel.h"
	#include "tcpd.h"			#include "tcpd.h"

	int allow_severity = SEVERITY; /* run-time adjustable */			int allow_severity = SEVERITY; /* run-time adjustable */
	int deny_severity = LOG_WARNING; /* ditto */			int deny_severity = LOG_WARNING; /* ditto */

	main(argc, argv)			main(int argc, char **argv)
	int argc;
	char **argv;
	{			{
	struct request_info request;			struct request_info request;
	char path[MAXPATHNAMELEN];			char path[MAXPATHNAMELEN];

	/* Attempt to prevent the creation of world-writable files. */			/* Attempt to prevent the creation of world-writable files. */

	#ifdef DAEMON_UMASK			#ifdef DAEMON_UMASK
	umask(DAEMON_UMASK);			umask(DAEMON_UMASK);
	▲ Show 20 Lines • Show All 64 Lines • Show Last 20 Lines