xfnw/plan9fox
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

vmx: update openbsd kernel heuristics

Browse source 
in OpenBSD 6.9 and up, the kernel (bsd, bsd.mp) still has
the ostype symbols, but bsd.rd appears to have lost them,
even when decompressed.

so, as a result, we should use what we have, which isn't
much.
This commit is contained in:
Ori Bernstein 2021-09-25 16:57:58 +00:00
parent 6e8b8c8f1a
commit 235ef367d7
1 changed files with 6 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
sys/src/cmd/vmx/ksetup.c
View file

@ -728,7 +728,7 @@ obsdload(void)
static int
tryelf(void)
{
char *s;
char *s, *t;
if(!elfheaders()) return 0;
elfdata();
@ -736,6 +736,11 @@ tryelf(void)
s = symaddr(elfsym("ostype"));
if(s != nil && strcmp(s, "OpenBSD") == 0)
return obsdload();
/* from 6.9 up, bsd.rd has just these syms */
s = symaddr(elfsym("rd_root_image"));
t = symaddr(elfsym("rd_root_size"));
if(s != nil && t != nil)
return obsdload();
return 0;
}