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Diffstat (limited to 'src/libmach/map.c')
| -rw-r--r-- | src/libmach/map.c | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/src/libmach/map.c b/src/libmach/map.c deleted file mode 100644 index cd5ef0985..000000000 --- a/src/libmach/map.c +++ /dev/null @@ -1,183 +0,0 @@ -// Derived from Inferno libmach/map.c and -// Plan 9 from User Space src/libmach/map.c -// -// http://code.swtch.com/plan9port/src/tip/src/libmach/map.c -// http://code.google.com/p/inferno-os/source/browse/utils/libmach/map.c -// -// -// Copyright © 1994-1999 Lucent Technologies Inc. -// Power PC support Copyright © 1995-2004 C H Forsyth (forsyth@terzarima.net). -// Portions Copyright © 1997-1999 Vita Nuova Limited. -// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com). -// Revisions Copyright © 2000-2004 Lucent Technologies Inc. and others. -// Portions Copyright © 2001-2007 Russ Cox. -// Portions Copyright © 2009 The Go Authors. All rights reserved. -// -// Permission is hereby granted, free of charge, to any person obtaining a copy -// of this software and associated documentation files (the "Software"), to deal -// in the Software without restriction, including without limitation the rights -// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -// copies of the Software, and to permit persons to whom the Software is -// furnished to do so, subject to the following conditions: -// -// The above copyright notice and this permission notice shall be included in -// all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -// THE SOFTWARE. - -/* - * file map routines - */ -#include <u.h> -#include <libc.h> -#include <bio.h> -#include <mach.h> - -Map * -newmap(Map *map, int n) -{ - int size; - - size = sizeof(Map)+(n-1)*sizeof(Seg); - if (map == 0) - map = malloc(size); - else - map = realloc(map, size); - if (map == 0) { - werrstr("out of memory: %r"); - return 0; - } - memset(map, 0, size); - map->nsegs = n; - return map; -} - -int -setmap(Map *map, int fd, uvlong b, uvlong e, vlong f, char *name, Maprw *rw) -{ - int i; - - if (map == 0) - return 0; - for (i = 0; i < map->nsegs; i++) - if (!map->seg[i].inuse) - break; - if (i >= map->nsegs) - return 0; - map->seg[i].b = b; - map->seg[i].e = e; - map->seg[i].f = f; - map->seg[i].inuse = 1; - map->seg[i].name = name; - map->seg[i].fd = fd; - map->seg[i].rw = rw; - return 1; -} - -/* -static uvlong -stacktop(int pid) -{ - char buf[64]; - int fd; - int n; - char *cp; - - snprint(buf, sizeof(buf), "/proc/%d/segment", pid); - fd = open(buf, 0); - if (fd < 0) - return 0; - n = read(fd, buf, sizeof(buf)-1); - close(fd); - buf[n] = 0; - if (strncmp(buf, "Stack", 5)) - return 0; - for (cp = buf+5; *cp && *cp == ' '; cp++) - ; - if (!*cp) - return 0; - cp = strchr(cp, ' '); - if (!cp) - return 0; - while (*cp && *cp == ' ') - cp++; - if (!*cp) - return 0; - return strtoull(cp, 0, 16); -} -*/ - -int -findseg(Map *map, char *name) -{ - int i; - - if (!map) - return -1; - for (i = 0; i < map->nsegs; i++) - if (map->seg[i].inuse && !strcmp(map->seg[i].name, name)) - return i; - return -1; -} - -void -unusemap(Map *map, int i) -{ - if (map != 0 && 0 <= i && i < map->nsegs) - map->seg[i].inuse = 0; -} - -int -fdrw(Map *map, Seg *s, uvlong addr, void *v, uint n, int isread) -{ - int tot, m; - - USED(map); - - for(tot=0; tot<n; tot+=m){ - if(isread) - m = pread(s->fd, (uchar*)v+tot, n-tot, addr+tot); - else - m = pwrite(s->fd, (uchar*)v+tot, n-tot, addr+tot); - if(m == 0){ - werrstr("short %s", isread ? "read" : "write"); - return -1; - } - if(m < 0){ - werrstr("%s %d at %#llux (+%#llux): %r", isread ? "read" : "write", n, addr, s->f); - return -1; - } - } - return 0; -} - - -Map* -loadmap(Map *map, int fd, Fhdr *fp) -{ - map = newmap(map, 2); - if (map == 0) - return 0; - - map->seg[0].b = fp->txtaddr; - map->seg[0].e = fp->txtaddr+fp->txtsz; - map->seg[0].f = fp->txtoff; - map->seg[0].fd = fd; - map->seg[0].inuse = 1; - map->seg[0].name = "text"; - map->seg[0].rw = fdrw; - map->seg[1].b = fp->dataddr; - map->seg[1].e = fp->dataddr+fp->datsz; - map->seg[1].f = fp->datoff; - map->seg[1].fd = fd; - map->seg[1].inuse = 1; - map->seg[1].name = "data"; - map->seg[0].rw = fdrw; - return map; -} |