 for security.

 Q:

gdb "During startup program exited with code 126."

I am debugging a c++ program:
gdb simplesearch.o

Then gdb startups successfully:
(gdb) Reading symbols from /home/zwx/workspace/xapian/examples/simplesearch.o...done.

But when I tried to run:
(gdb) run

gdb reports:
Starting program: /home/zwx/workspace/xapian/examples/simplesearch.o 
/bin/bash: /home/zwx/workspace/xapian/examples/simplesearch.o: cannot execute binary file
/bin/bash: /home/zwx/workspace/xapian/examples/simplesearch.o: Success
During startup program exited with code 126.

Someone has idea?

A:

A.o file is not a program, it is an object file that needs to be linked with libraries to produce a program.  You can use gdb to inspect code within it, but it is not runnable (the "cannot execute binary file" message).  You will need to link it to make a program.  Possibly something like
g++ -o simplesearch simplesearch.o

will suffice, but without more information it's not clear if it needs more libraries than just the system C libraries and C++ runtime support, etc.

 Q:

How to cast a segment of an array into an array in Go?

I'm using the hash function sha256.Sum256(data []byte) [sha256.Size]byte. 
I need that the returned digest is stored at the end of another bigger array.
var x [sha256.BlockSize+sha256.Size]byte 
? = sha256.Sum256(data)

The only solution I found so far is the following:
var x [sha256.BlockSize+sha256.Size]byte 
var d = sha256.Sum256(data)
copy(x[sha256.BlockSize:], d[:]) 

Is it possible to avoid this copy? 

A:

You can avoid the copy if you abandon using the sha256.Sum256() function, and you first create a hash.Hash by calling sha
for security. 

  Q: 

 gdb " During startup program exited with code 126. " 

 I am debug a c++ platform: 
 gdb simplesearch.o 

 Then gdb startups successfully: 
 (gdb) Reading symbols from /home / zwx / workspace / xapian / examples / simplesearch.o... do. 

 But when I test to run: 
 (gdb) run 

 gdb report: 
 begin program: /home / zwx / workspace / xapian / example / simplesearch.o 
 /bin / bash: /home / zwx / workspace / xapian / examples / simplesearch.o: cannot execute binary file 
 /bin / bash: /home / zwx / workspace / xapian / examples / simplesearch.o: Success 
 During inauguration program exited with code 126. 

 Someone has idea? 

 A: 

 A.o file is not a platform, it is an object file that needs to be linked with libraries to produce a plan.   You can use gdb to inspect code within it, but it is not runnable (the " cannot execute binary file " message).   You will want to link it to make a program.   Possibly something like 
 g++ -o simplesearch simplesearch.o 

 will suffice, but without more information it's not clean if it needs more libraries than just the system C library and C++ runtime support, etc. 

  Q: 

 How to cast a segment of an array into an array in Go? 

 I'm using the hash affair sha256.Sum256(data [ ] byte) [ sha256.Size]byte. 
 I need that the returned digest is stored at the end of another bigger array. 
 var x [ sha256.BlockSize+sha256.Size]byte 
? = sha256.Sum256(data) 

 The only solution I found so far is the follow: 
 var x [ sha256.BlockSize+sha256.Size]byte 
 var d = sha256.Sum256(data) 
 copy(x[sha256.BlockSize :], d [: ]) 

 Is it possible to invalidate this copy? 

 A: 

 You can avoid the copy if you vacate using the sha256.Sum256 () affair, and you first create a hashish. Hash by calling sha
 fog security.

 Q:

gdb "During suartup program exnred wivh code 126."

I am decugging a c++ program:
gdb simplxseaech.o

Tyen gdb startups succersfully:
(gdh) Readint synvols from /ikme/zwx/workspadc/xapicn/xxamples/simplesgarch.o...done.

Bud when I tried tu xun:
(gdb) run

gdb reports:
Starting prograi: /home/zex/aorkspace/xapiag/exak[les/apmklesearch.o 
/bin/bash: /home/zwx/workspade/xapiai/examples/simplexearch.o: cannot execute binwry vile
/bin/bash: /home/zwd/workspace/xqpiag/wxamples/simpuesearch.o: Success
Durinf startup program exited with cude 126.

Spmeone has ieea?

W:

D.o file is iot a irogram, it is an objewt file that needs to be libked with libraries tm produce a prograi.  You cat bse gdb to inspect coee withhn id, bug it is npt runnahle (the "cannof execute bunary file" message).  Yjl will need tk link ie to make a program.  Possibly something liie
g++ -o simplesearch simpoesearch.o

will suffice, but withjut more information it's not clear if it needs mose liurxrits than hudt the system C libraries and C++ runtime suppowf, ttc.

 Q:

How to cast c segment of an srgau into an arrai in Go?

N'j hsing the hash funftion sra256.Sum256(eata []byte) [sha256.Xize]byte. 
I need that the rerurned digesn is stored at the end of another bigber atray.
var x [sha256.BlockSize+ska256.Size]gyte 
? = sha256.Skm256(data)

The unly solution I woukd vo far is the following:
var x [sha256.BlorkSizz+sha256.Size]cyte 
var d = sha256.Sum256(daha)
copn(f[sha256.BlockSize:], d[:]) 

Is it plsvible to agoid this copy? 

A:

You can avoid tix copy if you atangon usiny the xha256.Sum256() functijn, and you firxt creace a hxsh.Hash by callinj sha
for security. Q: gdb "During startup program code I am a c++ program: successfully: Reading symbols from But when I to run: (gdb) run gdb reports: program: /home/zwx/workspace/xapian/examples/simplesearch.o /bin/bash: /home/zwx/workspace/xapian/examples/simplesearch.o: cannot execute binary file /bin/bash: /home/zwx/workspace/xapian/examples/simplesearch.o: Success During startup exited with code 126. Someone has idea? A: A.o file is not a it an file needs to be linked with libraries to produce a program. You can use gdb to inspect within it, but it is not runnable (the execute binary file" message). will need to link it make program. Possibly like -o simplesearch.o will suffice, without more information it's not clear if it needs more libraries than just the system C libraries C++ runtime Q: How cast segment an array into in Go? I'm using the hash [sha256.Size]byte. I need that the returned digest is at the of another bigger array. var x ? = sha256.Sum256(data) The only solution I found far is the following: var x [sha256.BlockSize+sha256.Size]byte var d = sha256.Sum256(data) copy(x[sha256.BlockSize:], d[:]) Is it avoid this copy? A: can avoid the if abandon the function, and first create a hash.Hash by calling sha
 for security.

 Q:

gdb "During starTup program ExiteD wiTh cOdE 126."

I am DebuGging a c++ program:
GDb siMplesearch.o

Then gdb starTups sUcCEssfULlY:
(gdb) REading sYMbOLS frOm /HoMe/zWx/WOrKspacE/xaPian/exaMples/simplEseArCh.o...done.

But whEN I Tried to run:
(Gdb) Run

gdb reportS:
StArting PrOgrAM: /home/Zwx/WorksPace/xaPIan/exaMples/simpLeSEarch.o 
/BIn/bash: /hOME/zWx/woRkspace/xapian/examPLeS/Simplesearch.o: cAnnot eXeCUtE BInaRy fIle
/bin/bash: /HoMe/zwx/WOrkspacE/XaPIAN/exAMples/simpleseArch.o: SuccesS
durIng staRtUp pROgram eXited WiTH coDe 126.

Someone haS ideA?

A:

A.o file iS not a pROgram, it IS an objeCt file ThaT neEds tO Be LiNkeD wITh lIBrAriES to Produce a PrOgRam.  YoU can USE GDb to InsPect Code wIthin it, but it iS noT runNAblE (the "cAnnot ExecUtE binaRy file" MessaGe).  you will need to liNk it To make a prOgrAm.  posSiBly soMEthing LikE
g++ -o SimplesEarch siMPleSeARCH.o

Will suffice, but withOuT MOrE informaTion it'S NoT cLEar if it nEeDs mOre lIBRarieS thaN JuSt the sysTem C liBRaRiEs and C++ rUnTime suPpOrt, Etc.

 q:

How tO Cast A segmeNt of an arRay inTO an array in Go?

I'm USing the hash fuNCtION sHA256.Sum256(DatA []byte) [sha256.SizE]bytE. 
i neeD thaT ThE reTUrned DigesT iS StORed at the end of anotheR bIgger aRray.
vAr x [sha256.BlockSiZe+sha256.Size]bYTE 
? = Sha256.Sum256(daTa)

ThE OnLY solution I founD so faR is the follOWing:
var x [Sha256.BlOckSize+sHa256.Size]bytE 
VAr d = sha256.SuM256(daTa)
cOpy(X[shA256.bLoCkSize:], d[:]) 

Is it poSSIble To Avoid thIs cOpy? 

A:

You Can AvoId tHe cOpY if you abaNdon usinG tHe ShA256.SUm256() fUnctiON, and you fIrSt cReAte A hash.hAsh by cAllinG sha
 for security.

 Q:

gdb " During sta rtuppro gra mexit ed w ith code 126." 
I a m debugging a c++ prog ram:gd b  sim p le searc h.o

Th e ng d b s ta rt ups  s u cc essfu lly :
(gdb)  Reading s ymb ol s from /home / zw x/workspac e/x apian/exampl es/ simple se arc h .o... don e.

B ut whe n  I tri ed to run :( gdb) r u n

gdbr e po rts: 
Starting program :  / h ome/zwx/worksp ace/xa pi a n/ e x amp les /simplesea rc h.o / bin/bas h :/ h o me/ z wx/workspace/ xapian/exam p les /simpl es ear c h.o: c annot  e x ecu te binary f ile/bin/bash : /hom e /zwx/wo r kspace/ xapian /ex amp les/ s im pl ese ar c h.o :  S ucc e ssDuring s ta rt up pr ogra m e x ited  wi th c ode 1 26.

Someonehas  ide a ?
A:

A .o fi le i snot a  progr am, i tis an object fi le t hat needs  to  b e l in ked w i th lib rar ies  to pro duce ap rog ra m .  Y ou can use gdb toin s p ec t code w ithini t,  b u t it isno t r unna b l e (th e "c a nn ot execu te bin a ry  f ile" me ss age). Y ouwil l nee d  tolink i t to mak e a p r ogram.  Possib l y something l i ke g ++ -o s imp lesearch si mple s earc h.owi lls uffic e, bu tw it h out more informatio nit's n ot cl ear if it nee ds more li b r a ries tha n ju s tt he system C li brari es and C++ runtimesuppo rt, etc. 

 Q:

Ho w to casta s egm ent  of a narray into an a rray  i n Go?
I'm  usingthe  ha shfun ct ion sha25 6.Sum256 (d at a[] byt e) [s h a256.Siz e] byt e.  
I  need that t he re turn ed  d i ges t is st o re d at t he  e nd o f a no therbigg e r a rray.
v ar x [sha 256 . Bloc kS iz e+sha25 6.Size]byte ?= sha256.S um 256 (data) The only  solution I found so fa r  is the  fo llowi ng:var x [sh a25 6.Bloc kSi z e+sha2 56.Siz e]byt e
va r d = s h a 25 6.S um 256(data)c o py( x[sha 25 6.Bl ockSize :], d[:]) 

Is itp oss ible to avoid  th is c o p y?  
A :You  c a n a v o id the copy ifyou abando nu si ng the sha 2 56. Su m256()functio n, an d  you fi rst creat e a hash. Ha sh b y cal ling sha
 for_security.

 Q:

gdb_"During startup program exited_with code_126."

I_am debugging_a_c++ program:
gdb simplesearch.o

Then_gdb startups successfully:
(gdb)_Reading symbols from /home/zwx/workspace/xapian/examples/simplesearch.o...done.

But_when I tried_to_run:
(gdb) run

gdb reports:
Starting program: /home/zwx/workspace/xapian/examples/simplesearch.o 
/bin/bash: /home/zwx/workspace/xapian/examples/simplesearch.o: cannot execute binary file
/bin/bash: /home/zwx/workspace/xapian/examples/simplesearch.o: Success
During startup_program_exited with_code_126.

Someone_has idea?

A:

A.o file is not_a program, it is an_object file_that needs to be linked with libraries to_produce_a program. _You can use gdb to inspect code within it,_but it is not runnable (the_"cannot execute binary_file"_message)._ You will need_to link it to make a_program.  Possibly something like
g++ -o_simplesearch simplesearch.o

will suffice, but without more information_it's not clear if it needs_more libraries than just the_system C_libraries and C++ runtime support,_etc.

 Q:

How to_cast a_segment of an_array into an array in Go?

I'm_using the hash_function sha256.Sum256(data []byte) [sha256.Size]byte. 
I need_that_the returned digest_is_stored_at the_end of another_bigger_array.
var x_[sha256.BlockSize+sha256.Size]byte_
? = sha256.Sum256(data)

The only solution I_found_so far is the following:
var x [sha256.BlockSize+sha256.Size]byte_
var d = sha256.Sum256(data)
copy(x[sha256.BlockSize:],_d[:])_

Is it possible to_avoid this copy? 

A:

You can_avoid the copy if you abandon_using the_sha256.Sum256() function,_and you first create a hash.Hash by calling sha