2021-03-05 01:44 CET

View Issue Details Jump to Notes ]
IDProjectCategoryView StatusLast Update
0002489Frama-CKernel > libcpublic2020-06-12 08:59
Assigned Tomaroneze 
Platformx86_64OSopamOS Version
Product Version 
Target VersionFixed in VersionFrama-C 21-Scandium 
Summary0002489: unistd.h declares __fc_ttyname but it has no definition
DescriptionWhen compiling __fc_runtime.c, I get

/usr/bin/ld: __fc_runtime.o:(.data.rel+0x0): undefined reference to `__fc_ttyname'
collect2: error: ld returned 1 exit status
Steps To Reproducegcc -I$(frama-c -print-share-path)/libc -nostdinc -D__FC_MACHDEP_X86_64 -o __fc_runtime.o -c $(frama-c -print-share-path)/libc/__fc_runtime.c

(ignore the warnings)

echo "int main () { return 0; }" > main.c

gcc main.c __fc_runtime.o

You should get the error.
Additional Informationgcc version 8.3.0 (debian buster)
frama-c version 20.0 (Calcium)
TagsNo tags attached.
Attached Files




vkraus (reporter)

Sorry, the steps are collapsed on a single line. The first command runs from gcc to __fc_runtime.c, and the second from "echo ..." to "> main.c".


maroneze (administrator)

Thanks for the report. I believe adding a "unistd.c" file with a non-extern declaration for that symbol should suffice. We'll also add a non-regression test to avoid re-introducing this kind of bug in the future.


maroneze (administrator)

Last edited: 2020-01-22 15:48

View 2 revisions

Fixed in commit https://git.frama-c.com/pub/frama-c/commit/eca7b9d1ec736b4e24806140ffe0a2df3607c67a.


-Issue History
Date Modified Username Field Change
2020-01-08 20:51 vkraus New Issue
2020-01-08 20:51 vkraus Status new => assigned
2020-01-08 20:51 vkraus Assigned To => maroneze
2020-01-08 20:54 vkraus Note Added: 0006929
2020-01-15 18:43 maroneze Note Added: 0006930
2020-01-15 18:43 maroneze Status assigned => confirmed
2020-01-22 15:47 maroneze Note Added: 0006932
2020-01-22 15:47 maroneze Status confirmed => resolved
2020-01-22 15:47 maroneze Fixed in Version => Frama-C GIT, precise the release id
2020-01-22 15:47 maroneze Resolution open => fixed
2020-01-22 15:48 maroneze Note Edited: 0006932 View Revisions
2020-06-12 08:59 signoles Fixed in Version Frama-C GIT, precise the release id => Frama-C 21-Scandium
2020-06-12 08:59 signoles Status resolved => closed
+Issue History