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| author | andreast <andreast@FreeBSD.org> | 2010-11-17 19:28:48 +0000 |
|---|---|---|
| committer | andreast <andreast@FreeBSD.org> | 2010-11-17 19:28:48 +0000 |
| commit | e7675da8d7a7ffb411fc9b1fbdd398e5ee268e8c (patch) | |
| tree | bbfe066e9793dc2bc6bb9a5973daf19569d3937c /sys/boot/powerpc | |
| parent | 567f54688569eed4fa86cd6942f566e7c7e050c9 (diff) | |
| download | FreeBSD-src-e7675da8d7a7ffb411fc9b1fbdd398e5ee268e8c.zip FreeBSD-src-e7675da8d7a7ffb411fc9b1fbdd398e5ee268e8c.tar.gz | |
Make sure the .bss is cleared at the beginning. The pSeries OF ELF loader does
not clear .bss automatically.
Approved by: nwhitehorn (mentor)
Diffstat (limited to 'sys/boot/powerpc')
| -rw-r--r-- | sys/boot/powerpc/ofw/start.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/sys/boot/powerpc/ofw/start.c b/sys/boot/powerpc/ofw/start.c index 60c5db7..8637e1f 100644 --- a/sys/boot/powerpc/ofw/start.c +++ b/sys/boot/powerpc/ofw/start.c @@ -50,7 +50,20 @@ _start: \n\ addi %r1,%r1,stack@l \n\ addi %r1,%r1,16384 \n\ \n\ - b startup \n\ + /* Clear the .bss!!! */ \n\ + li %r0,0 \n\ + lis %r8,_edata@ha \n\ + addi %r8,%r8,_edata@l\n\ + lis %r9,_end@ha \n\ + addi %r9,%r9,_end@l \n\ + \n\ +1: cmpw 0,%r8,%r9 \n\ + bge 2f \n\ + stw %r0,0(%r8) \n\ + addi %r8,%r8,4 \n\ + b 1b \n\ + \n\ +2: b startup \n\ "); void |
