mirror/emacs
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/emacs.git synced 2024-12-29 11:02:01 +00:00
Code Issues Releases Activity

(unexec_regions_recorder, unexec_regions_merge):

Browse Source 
Don't assume regions are aligned to page boundary.
(print_load_command_name): Add LC_UUID if defined.
This commit is contained in:
YAMAMOTO Mitsuharu 2007-10-30 08:32:36 +00:00
parent e58a672c1d
commit ae7c60a92e
2 changed files with 36 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/ChangeLog
View File

@ -1,3 +1,9 @@
2007-10-30 YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
* unexmacosx.c (unexec_regions_recorder, unexec_regions_merge):
Don't assume regions are aligned to page boundary.
(print_load_command_name): Add LC_UUID if defined.
2007-10-30 Richard Stallman <rms@gnu.org>
* emacs.c (syms_of_emacs) <installation-directory>: Reflow docstring.

38
src/unexmacosx.c
View File

@ -443,15 +443,13 @@ unexec_regions_recorder (task_t task, void *rr, unsigned type,
while (num && num_unexec_regions < MAX_UNEXEC_REGIONS)
{
/* Subtract the size of trailing null pages from filesize. It
/* Subtract the size of trailing null bytes from filesize. It
can be smaller than vmsize in segment commands. In such a
case, trailing pages are initialized with zeros. */
for (p = ranges->address + ranges->size; p > ranges->address;
p -= sizeof (int))
if (*(((int *) p)-1))
break;
filesize = ROUNDUP_TO_PAGE_BOUNDARY (p - ranges->address);
assert (filesize <= ranges->size);
case, trailing bytes are initialized with zeros. */
for (p = ranges->address + ranges->size; p > ranges->address; p--)
if (*(((char *) p)-1))
break;
filesize = p - ranges->address;
unexec_regions[num_unexec_regions].filesize = filesize;
unexec_regions[num_unexec_regions++].range = *ranges;
@ -503,11 +501,19 @@ unexec_regions_merge ()
{
int i, n;
unexec_region_info r;
vm_size_t padsize;
qsort (unexec_regions, num_unexec_regions, sizeof (unexec_regions[0]),
&unexec_regions_sort_compare);
n = 0;
r = unexec_regions[0];
padsize = r.range.address & (pagesize - 1);
if (padsize)
{
r.range.address -= padsize;
r.range.size += padsize;
r.filesize += padsize;
}
for (i = 1; i < num_unexec_regions; i++)
{
if (r.range.address + r.range.size == unexec_regions[i].range.address
@ -520,6 +526,17 @@ unexec_regions_merge ()
{
unexec_regions[n++] = r;
r = unexec_regions[i];
padsize = r.range.address & (pagesize - 1);
if (padsize)
{
if ((unexec_regions[n-1].range.address
+ unexec_regions[n-1].range.size) == r.range.address)
unexec_regions[n-1].range.size -= padsize;
r.range.address -= padsize;
r.range.size += padsize;
r.filesize += padsize;
}
}
}
unexec_regions[n++] = r;
@ -562,6 +579,11 @@ print_load_command_name (int lc)
case LC_TWOLEVEL_HINTS:
printf ("LC_TWOLEVEL_HINTS");
break;
#ifdef LC_UUID
case LC_UUID:
printf ("LC_UUID ");
break;
#endif
default:
printf ("unknown ");
}