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Scilab is a scientific software package for numerical computationsproviding a powerful open computing environment for engineering andscientific applications. Developed since 1990 by researchers from INRIA(French National Institute for Research in Computer Science and Control) andENPC (National School of Bridges and Roads), it is now maintained anddeveloped by Scilab Consortium since its creation in May 2003 and integratedinto Digiteo Foundation in July 2008. The current version is 5.2.1 (February2010).
Transcript of Stack Corruption
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7/4/2015 Stackcorruption
http://www.keil.com/forum/59751/ 1/1
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AuthorKumarReddyPosted20May201513:24GMTToolsetARM
StackcorruptionHello,
IamworkingonAT91SAM9G20,Keil5.10.Iampassingaconstantstructurepointertoafunction.
typedefstruct{intTestintOkFlag}StructNode
typedefconstStructNode*constNode_t
afterpassingthenode3timesrecursivelythroughafunction
stackdataisgettingcorrupted.
AmIdoinganymistake,Pleasesuggest.
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AuthorPerWestermarkPosted20May201513:44GMTToolsetARM
RE:StackcorruptionSohaveyouverifiedthatthestackisbigenough?Andhaveyouverifiedifthereareotherstructuresthatareneighbourwiththestackandmightoverwritethestack?Andhaveyouverifiedyouruseofpointersorarraystocheckforuseofinvalidpointersoroutofboundsaccessestoarrays?
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AuthorKumarReddyPosted20May201513:58GMTToolsetARM
RE:StackcorruptionIhaveabundantstack,Iamnotmodifyinganydatainsidethefunction,Ihavetrimmedthefunctiontominimal,forjustpassingaduplicatenodebutdatavariablespresentinthefirstcalleraregettingcorrupted.
Iamtypecastingaautovariabletoconsttype
StructNodeNodeNode_tNodePtr=&Node
IsuspecttheremightbeissuewithNode_ttypecastfromNode
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AuthorReinhardKeilPosted28May201512:25GMTToolsetARM
RE:StackcorruptionPassinganaddressofastackbasedvariablecanbetrickysincethelifetimeofthevariableendsatthefunctionreturn.
Whenthereferencepointerofsuchavariableisusedafterthat,yougetastackcorruption.Isuggestthatyouanalyzeyourprogramforsuchascenario.
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