[PATCH 2/2] bsps/sparc: Fix BSS initialization
Sebastian Huber
sebastian.huber at embedded-brains.de
Wed May 14 08:57:03 UTC 2014
Use __bss_start available via %g2 to clear the BSS section. The usage
of _edata resulted in a copy of [_edata, __bss_start) from ROM to RAM
and then a clear to zero of this area.
Clear now only [__bss_start, _end).
---
c/src/lib/libbsp/sparc/shared/start/start.S | 2 --
1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/c/src/lib/libbsp/sparc/shared/start/start.S b/c/src/lib/libbsp/sparc/shared/start/start.S
index a1b3ff0..65dd559 100644
--- a/c/src/lib/libbsp/sparc/shared/start/start.S
+++ b/c/src/lib/libbsp/sparc/shared/start/start.S
@@ -344,8 +344,6 @@ copy_data:
/* clear the bss */
1:
- sethi %hi(_edata),%g2
- or %g2,%lo(_edata),%g2 ! g2 = start of bss
sethi %hi(_end),%g3
or %g3,%lo(_end),%g3 ! g3 = end of bss
mov %g0,%g1 ! so std has two zeros
--
1.7.7
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