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Gcc Error Aliased To Undefined Symbol

Proudly powered by WordPress wxWidgets Discussion Forum Official forum for the wxWidgets Cross-Platform GUI Toolkit Skip to content Search Advanced search Quick links Unanswered posts Active topics Search The team FAQ Stelios Index Nav: [DateIndex] [SubjectIndex] [AuthorIndex] [ThreadIndex] Message Nav: [DatePrev][DateNext] [ThreadPrev][ThreadNext] [mpich-devel] Weak symbols, clang, and users compiling with -fvisibility=hidden Jed Brown jedbrown at mcs.anl.gov Mon Jan 6 12:14:27 CST 2014 BTW, if anybody wants to look at it, the builds can be gotten from http://gda.utp.edu.co/~ceniza/GCC-4.1.1/. For example, windows targets use this to decorate stdcall andfastcall functions+ with a a trailing '@n'. */+ void (*change_extern_name) (tree decl);+ } asm_out; /* Functions relating to instruction scheduling. */ Top check over here

I have also send an email to the mailing list, but no solution has been found. Or maybe ReleaseEvent() and AddRefEvent(). Index Nav: [DateIndex] [SubjectIndex] [AuthorIndex] [ThreadIndex] Message Nav: [DatePrev][DateNext] [ThreadPrev][ThreadNext] Other format: [Raw text] '_ctype_' aliased to undefined symbol '_ctype_b+127' From: Shaun Jackman To: newlib at Why microcontroller takes many clock cycles to start up with PLL clock source?

The only known way how to get the useful protected semantics is ATM the 2 macro approach glibc uses (one macro on the prototype (or below the prototype, but before its FreeRTOS defines vPortSVCHandler, which is the ISR I want to have handle the SVC interrupt. After applying this patch and recompiling and reinstalling the compiler under MinGW, everything seems to work. Conference presenting: stick to paper material?

With regards, - Jorgen Forensic Software Engineer Netherlands Forensic Insitute http://english.forensischinstituut.nl/ ------------------------------------- Jorg's WasteBucket http://www.xs4all.nl/~jorgb/wb Top KenJackson In need of some credit Posts: 6 Joined: Mon Mar 20, 2006 1:47 pm How to use the binomial theorem to calculate binomials with a negative exponent How to limit a xorg installation to a single video driver? A module can contain an unresolved external symbol (sym1), but it can also include an auxiliary record that indicates that if sym1 is not present at link time, another external symbol neat trick if you can do it)...

Compilers: gcc-3.3.6, gcc-3.4.5, gcc-4.0.2, gcc-4.1.0 and MSVC6 OS's: Gentoo Linux, WinXP; WX: CVS HEAD Project Manager of wxMUD - http://wxmud.sf.net/ Developer of wxGTK; gtk+ port maintainer of OMGUI - http://www.omgui.org/ Top How to deal with sewage on a map with no water anywhere What are oxidation states used for? We can no longer say: ---------program.c--------- int foo(); int bar () __attribute__((alias("foo"))); ------------------------------ According to the documentation: """ This is because it's meaningless to define an alias to an undefined symbol. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=20652 Post Reply Print view Search Advanced search 15 posts • Page 1 of 1 MichaelZ In need of some credit Posts: 6 Joined: Thu Mar 02, 2006 1:16 pm Contact: Contact

You can create such DLLs with special syntax in your .def file EXPORTS section. This could be done straightforwardly (just export both foo with the same value as bar) except for the wrinkle that in general bar is not defined in the object file exporting Anyway, the patch works to get it compiled. Why is water evaporated from the ocean not salty? 5008 out of the box Is there a Korean word for 'Syllable Block'?

The CMSIS library defines the weak symbol SVC_Handler in the startup ".s" file. find more info So I thought I'd try to extern the symbol into main.c like so: extern void vPortSVCHandler( void ) __attribute__ (( naked )); void SVC_Handler(void) __attribute__ ((alias ("vPortSVCHandler"))); This generates the same extern "C" { int foo(); } extern "C" // <<< extern "C" also!!! { int foo() {} } int bar() __attribute__((alias ("foo"))); share|improve this answer answered May 29 '12 at 15:43 I have yet to try my first binary, but I have some code I can try.

Top Chris73 In need of some credit Posts: 1 Joined: Thu Jul 06, 2006 11:06 am Quote Postby Chris73 » Thu Jul 06, 2006 11:43 am I'm no GCC expert, I Looking for a solution. Happily, Apple's linker does seem to include support for N_INDR, so everything should work OK if you managed to generate an object file making use of that type. Have you guys tried that one?

Any suggestions? According to Daniel the errors gcc is complaining about should just be warnings, but maybe this is intended behaviour and needs to be worked around in libxml2? The assembler does have rudimentary support for generating weak externals, but only uses it in the rudimentary capacity of supporting the .weak directive (with ELF-style semantics) on Windows. this content We might be tempted to search for some equivalent to the weak externals feature on Windows.

It is an error if `_f' is not defined in the same translation unit. Not all target machines support this attribute. Comment 1 Andreas Jaeger 2005-03-27 08:16:25 UTC glibc needs to be changed for this, for details chech the thread starting at: http://sourceware.org/ml/libc-hacker/2005-03/msg00061.html Comment 2 Andrew Pinski 2005-08-05 15:27:14 UTC *** Bug The fly in the ointment is that the latest version of Apples assembler has no support for actually generating such indirections.


GCC GCC supports an alias attribute that does exactly what I want. Top MichaelZ In need of some credit Posts: 6 Joined: Thu Mar 02, 2006 1:16 pm Contact: Contact MichaelZ ICQ Website WLM Quote Postby MichaelZ » Fri Mar 03, 2006 6:07 Is there a role with more responsibility? Actual results: Expected results: Additional info: Comment 1 Jakub Jelinek 2005-03-29 09:49:37 EST Until a few days ago it was just a warning, but now it is a hard error.

Meaning of "oh freak" How to show hidden files in Nautilus 3.20.3 Ubuntu 16.10? In this case, I recently came across a situation where it would be useful to be able to generate an object file that contained an alias for a symbol defined elsewhere. I would really like to avoid modifying either of the libraries. Why (in universe) are blade runners called blade runners?

Bug152425 - gcc4 fails to build libxml2 Summary: gcc4 fails to build libxml2 Status: CLOSED NOTABUG Aliases: None Product: Fedora Classification: Fedora Component: gcc (Show other bugs) Sub Component: --- Version: How does NumPy solve least squares for underdetermined systems?