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January 03, 2015 [Issue 13742] undefined reference to __coverage | ||||
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https://issues.dlang.org/show_bug.cgi?id=13742 --- Comment #1 from Martin Nowak <code@dawg.eu> --- Another occurence of this issue. https://github.com/kiith-sa/D-YAML/issues/20 -- |
March 28, 2015 [Issue 13742] undefined reference to __coverage | ||||
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https://issues.dlang.org/show_bug.cgi?id=13742 jiki@red.email.ne.jp changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jiki@red.email.ne.jp --- Comment #2 from jiki@red.email.ne.jp --- I hit this on Windows. Reduced test case is here. COMMAND: dmd -cov -g -c test.d f.d dmd -cov -g -main test.obj f.obj OUTPUT: Error 42: Symbol Undefined ___coverage --- errorlevel 1 SOURCE FILES: f.d --------------------- import std.algorithm; void func(alias pred)() { int[] range; range.find!pred(0); } --------------------- test.d --------------------- import f; enum mypred = (int a, int b)=>false; //bool mypred(int a, int b) { return false; } -- WORK AROUND void test() { func!mypred(); } --------------------- -- |
April 13, 2015 [Issue 13742] undefined reference to __coverage | ||||
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https://issues.dlang.org/show_bug.cgi?id=13742 --- Comment #3 from Martin Nowak <code@dawg.eu> --- (In reply to jiki from comment #2) > I hit this on Windows. > Reduced test case is here. Also confirmed for linux. A temporary workaround for your case is to only generate a single object file. dmd -cov -g -c -oftmp.o test.d f.d dmd -cov -g -main tmp.o Hope that also works on Windows. -- |
April 13, 2015 [Issue 13742] undefined reference to __coverage | ||||
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https://issues.dlang.org/show_bug.cgi?id=13742 Martin Nowak <code@dawg.eu> changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P1 |P4 -- |
July 24, 2015 [Issue 13742] undefined reference to __coverage | ||||
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https://issues.dlang.org/show_bug.cgi?id=13742 Marc Schütz <schuetzm@gmx.net> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |schuetzm@gmx.net -- |
February 02, 2016 [Issue 13742] undefined reference to __coverage | ||||
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https://issues.dlang.org/show_bug.cgi?id=13742 Sönke Ludwig <sludwig@outerproduct.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |sludwig@outerproduct.org --- Comment #4 from Sönke Ludwig <sludwig@outerproduct.org> --- For completeness sake, this is what I reduced from vibe.d: foo.d --- import bar; void clear() { void foo() {} performLocked!(() => foo); } --- bar.d --- import core.thread; void performLocked(alias PROC)() { assert(false); } --- main.d --- import foo; void main() {} --- dmd -lib -oflib.a bar.d foo.d -cov dmd -oftest lib.a main.d -cov -> lib.a(foo.o):foo.d:function _D3bar50__T13performLockedS28_D3foo5clearFZ9__lambda2MFZvZ13performLockedMFNaNbNiNfZv: error: undefined reference to '__coverage' -- |
February 03, 2016 [Issue 13742] undefined reference to __coverage | ||||
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https://issues.dlang.org/show_bug.cgi?id=13742 Luís Marques <luis@luismarques.eu> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |luis@luismarques.eu -- |
April 24, 2017 [Issue 13742] undefined reference to __coverage | ||||
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https://issues.dlang.org/show_bug.cgi?id=13742 Les De Ridder <dlang@lesderid.net> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |dlang@lesderid.net -- |
January 07, 2018 [Issue 13742] undefined reference to __coverage | ||||
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https://issues.dlang.org/show_bug.cgi?id=13742 --- Comment #5 from Martin Nowak <code@dawg.eu> --- Apparently happens because the __coverage symbols is defined twice in foo.o (2.078.0), once as BSS symbols and once as undefined symbol. nm lib.a foo.o: 0000000000000000 t 0000000000000000 d __bcoverage 0000000000000000 b __coverage U __coverage U _D3bar12__ModuleInfoZ Interestingly works when you swap foo.d and bar.d on the command line. -- |
January 07, 2018 [Issue 13742] undefined reference to __coverage | ||||
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https://issues.dlang.org/show_bug.cgi?id=13742 --- Comment #6 from Martin Nowak <code@dawg.eu> --- The problem seems to be that the `performLocked!(() => foo);` has a location in bar.d and tries to increment bar's location, but the bar object is already emitted. When objects are done all symbols get reset and further references from other objects add an external undefined symbol, this seems to trigger the linker bug. As __coverage is local (static) symbol, referencing it from another object file isn't possible atm. anyhow. So I think the root cause is that the compile order bar.d foo.d ends up moving the nested template function pure nothrow @nogc @safe void bar.performLocked!(foo.clear().foo()).performLocked(int) to the foo.o object, where it can no longer reference bar.d's coverage symbol. -- |
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