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0002413Frama-CPlug-in > E-ACSLpublic2018-12-05 15:112018-12-06 12:41
rmalak 
signoles 
normalmajoralways
confirmedopen 
x86_64Linux 4.18 OCaml 4.07.0Debian Sid
Frama-C 18-Argon 
 
0002413: missing E-ACSL code when ignoring asm annotation
Hi, //////////////// asm.c void func() { int i = 0; int *ptr=&i; /*@ assert \valid(ptr); */ *ptr = 0; } int main(int argc, char **argv) { func(); __asm__ (""); return 0; } ////////////////
$ frama-c -machdep gcc_x86_64 asm.c -e-acsl -then-last -print -ocode eacsl_asm.c [kernel] Parsing FRAMAC_SHARE/e-acsl/e_acsl_gmp_api.h (with preprocessing) [kernel] Parsing FRAMAC_SHARE/e-acsl/e_acsl.h (with preprocessing) [kernel] Parsing asm.c (with preprocessing) [e-acsl] beginning translation. [e-acsl] asm.c:11: Warning: E-ACSL construct `asm' is not yet supported. Ignoring annotation. [e-acsl] translation done in project "e-acsl". $ gcc -DE_ACSL_SEGMENT_MMODEL -Wno-attributes -I$(frama-c -print-share-path)/e-acsl/ -o asm eacsl_asm.c $(frama-c -print-share-path)/e-acsl/e_acsl_rtl.c $(frama-c -print-share-path)/../../lib/libeacsl-dlmalloc.a $(frama-c -print-share-path)/../../lib/libeacsl-gmp.a -lm $ ./asm Assertion failed at line 5 in function func. The failing predicate is: \valid(ptr). Aborted
When one comments the __asm__ line and compare the generated code, it seems that the list of missing functions are : __e_acsl_memory_clean __e_acsl_store_block __e_acsl_delete_block __e_acsl_initialize __e_acsl_full_init The problem is similar on Chlorine and Argon. i and ptr could also be global static variables, it doesn't change anything
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c asm.c (186) 2018-12-05 15:11
https://bts.frama-c.com/file_download.php?file_id=1292&type=bug
Issue History
2018-12-05 15:11rmalakNew Issue
2018-12-05 15:11rmalakStatusnew => assigned
2018-12-05 15:11rmalakAssigned To => signoles
2018-12-05 15:11rmalakFile Added: asm.c
2018-12-05 16:46signolesNote Added: 0006690
2018-12-05 16:46signolesStatusassigned => confirmed
2018-12-06 12:41rmalakNote Added: 0006692

Notes
(0006690)
signoles   
2018-12-05 16:46   
Thank you for the report. A workaround consists in adding the option -e-acsl-full-mmodel to E-ACSL (or -M when using e-acsl-gcc.sh).
(0006692)
rmalak   
2018-12-06 12:41   
Thanks !