From: Jochen Strohbeck <jochen@strohbeck.net>
To: newlib@sourceware.org
Subject: Hard faults using sprintf() and float
Date: Fri, 24 Mar 2017 08:31:00 -0000 [thread overview]
Message-ID: <46f40c33-b4c9-5c80-3b68-dd5e23bab8c0@strohbeck.net> (raw)
Hello,
I'm using newlib 2.4.0 as provided by the ASF / Atmel Studio
Installation. I'm on a SAME70 and my app is heavily using float32 and
therefore I'm interested in using printf and co. in my FreeRTOS / lwip
environment. Now it seems to me that there is a problem in memory
allocation stuff but I can't get deeper. Looks like sprintf with "%.3e"
format string results in a hard fault which I tracked down to the newlib
library. Any idea what I can do ?
Regards
In Hard Fault Handler
SCB->HFSR = 0x40000000
Forced Hard Fault
SCB->CFSR = 0x00008200
Bus fault:
r0 = 0x36353931
r1 = 0x00000000
r2 = 0x00000004
r3 = 0x2040b970
r12 = 0xfadffbfe
lr = 0x004461ff
pc = 0x00447128 <-- !!
psr = 0x81010000
_Balloc():
447118: 6cc3 ldr r3, [r0, #76] ; 0x4c
:
447126: b180 cbz r0, 44714a <_Balloc+0x32>
447128: 6802 ldr r2, [r0, #0] <-- !!
44712a: f843 2024 str.w r2, [r3, r4, lsl #2]
:
44715e: 6044 str r4, [r0, #4]
447160: 6086 str r6, [r0, #8]
447162: e7e4 b.n 44712e <_Balloc+0x16>
next reply other threads:[~2017-03-24 8:31 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-24 8:31 Jochen Strohbeck [this message]
2017-03-24 9:38 ` Sebastian Huber
2017-03-24 11:46 ` Jochen Strohbeck
2017-03-24 13:41 ` Richard Earnshaw (lists)
2017-03-27 8:48 ` Jochen Strohbeck
2017-04-03 13:19 ` Jochen Strohbeck
2017-04-03 18:57 ` onkel.jack
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