Commit graph

48 commits

Author SHA1 Message Date
db32807dd0 Fix rbp pop heuristic
Add criterion to rbp pop detection:
  iii) that are the last references to %rbp in a `Def` in the
    subroutine's CFG (cf (ii)).
2019-06-11 18:44:05 +02:00
4d6187ac21 Fix recursive call synthesis 2019-06-11 03:22:55 +02:00
ec75b2fc92 Fix tail call synthesis 2019-06-11 03:22:22 +02:00
3b2cad0dc4 Revert to bap1.5 2019-06-11 03:21:56 +02:00
f1b84f1fbe Add make tarball 2019-05-28 21:40:05 +02:00
07e6fd821e README: dependencies instructions 2019-05-28 21:16:40 +02:00
ad07f1d30f check_gen_eh_f: better reporting 2019-05-28 21:12:49 +02:00
e7c007e811 Compile libdwarfw from master Makefile 2019-05-28 17:07:35 +02:00
8d49af7be8 Use bap 1.6 2019-05-28 17:00:44 +02:00
174c4e8143 master script: fix generate to same file 2019-05-28 16:35:17 +02:00
6df057260d Add uncommitted tests and curiosities 2019-04-05 16:39:21 +02:00
11fa3fab40 Check_gen: patch for flat vs pyramid clang tables
clang generates tables like this

      LOC           CFA      rbx   rbp   r14   r15   ra
   00000000000028a0 rsp+8    u     u     u     u     c-8
   00000000000028a1 rsp+16   u     u     u     u     c-8
   00000000000028a3 rsp+24   u     u     u     u     c-8
   00000000000028a5 rsp+32   u     u     u     u     c-8
   00000000000028a6 rsp+40   u     u     u     u     c-8
   00000000000028aa rsp+64   c-40  c-16  c-32  c-24  c-8
2019-04-05 16:32:00 +02:00
344ac84ef3 Ignore ghost subroutines for clang
A ghost subroutine is a subroutine having, in the IR representation, no
content. At clang -O0, some might be generated, eg.

<foo_func>:
foo_addr        nop

which translates to Empty in BIL.
2019-04-05 11:23:18 +02:00
6c18d9f537 Use rbp only on the subs where we need it 2019-04-05 11:23:13 +02:00
29ab916c55 Fix next_instr_graph out-of-subroutine pointers
The disasm-based next_instr_graph would introduce next instructions out
of the current subroutine for eg. calls, jmp to plts, etc.
2019-04-04 19:47:36 +02:00
5f7dfb6f5f Use disasm to generate next_instr_graph 2019-04-04 13:49:39 +02:00
3d336de196 Add flag to never go back to undefined rbp
Once rbp has been set in the DWARF, if this flag is set, nothing will
remove it from the table. This mimicks gcc and allows us to check easily
our tables against theirs.
2019-04-04 11:52:47 +02:00
4313ee91a7 Curiosities: mov %rsp, %rbp not switching to rbp tracking 2019-04-04 11:51:57 +02:00
c3050da113 Csmith checker: check rbp column 2019-04-03 18:20:03 +02:00
5d6929f84c csmith_gen: add COMPILE_CMD option 2019-04-03 12:22:07 +02:00
2b2d44c18e csmith/check_gen_eh_frame: verbose mode 2019-04-03 12:19:53 +02:00
30fe23b541 Fix rbp to rsp switch
Use rsp+16, because we'll pop the saved rbp from the stack just after
2019-04-03 12:19:53 +02:00
180e32a4b3 Generate RBP column when needed 2019-04-03 12:19:49 +02:00
fc8c9c45d6 Enhance eh_frame validity checker/differ 2019-03-31 16:26:55 +02:00
681153b954 Script to check csmith synth validity 2019-03-29 19:26:58 +01:00
719fa27f99 Ensure a crashing FDE still generates other FDEs 2019-03-29 19:24:51 +01:00
d7c1aaa6b5 CSmith: add script to generate tests 2019-03-18 20:50:49 +01:00
693a48f070 Add synthesize_dwarf.sh
Update documentation and Makefile accordingly.
2019-03-18 14:27:24 +01:00
8fa2bc5952 ml_dwarf_write: write to a separate file
Don't try to write into the ELF file directly, use objcopy.

Updated README
2019-03-18 14:20:53 +01:00
Francesco Zappa Nardelli
484b20c732 initial commit of ocaml->c wrappers. as bap linking is already complicated, two independent binaries communicate via a tmp.marshall file for now. 2018-12-30 10:10:51 -08:00
828abdf495 Remove relocation data in dwarf_write 2018-12-23 15:36:24 +01:00
effccb087e Convert Simplest types to C-like types 2018-12-23 12:27:38 +01:00
db2f5787d3 Tentative rewrite of Dareog to write DWARF to ELF
Rewrite from Simon Ser's code from Dareog. Yet untested.
2018-12-23 11:15:46 +01:00
465c951c0d Add libdwarfw as submodule 2018-12-07 17:16:18 +01:00
0c42aa6bcf Ignore and remove *.plugin compiled files
Added by mistake previously — link to a built file under _build. Should
not be there and prevents compilation.
2018-12-07 17:15:20 +01:00
5ecd56a134 Simplest: compute first and last address of sub 2018-11-20 16:55:56 +01:00
e021d781f4 Use AddrMap instead of CfaChange list 2018-11-19 18:11:20 +01:00
b395c98b78 Simplest: correctly add beg-of-block values 2018-11-19 16:09:56 +01:00
ee6ac40294 Frontend: print as readelf -wF 2018-11-19 16:09:37 +01:00
7ffc33d7a8 Simplest: catch inconsistent subroutine in of_prog 2018-11-16 19:11:52 +01:00
b4043249f9 Simplest: fix reverting from rbp to rsp 2018-11-16 18:25:53 +01:00
0f181e93cd Simplest: use rbp 2018-11-16 18:02:38 +01:00
9f09dec677 Simplest: change workflow 2018-11-16 18:02:38 +01:00
aec0ab59ad Simplest: use smallest blk addr as entry point 2018-11-16 18:02:12 +01:00
b7a5caf87f Simplify evaluation of affine rsp setting expr 2018-11-15 17:23:20 +01:00
745e0d96d9 Basic support for rsp tracking 2018-10-25 17:11:08 +02:00
4096c4bf19 Generate CFA tracking with RIP 2018-10-23 19:22:19 +02:00
194f3f8128 Initial commit 2018-10-12 18:45:04 +02:00