Commit graph

33 commits

Author SHA1 Message Date
1e39d97c88 Synth: do not follow jumps outside of sub 2019-07-05 15:30:17 +02:00
a3a33d4c88 Add performance analysis code + gzip eval 2019-06-11 22:15:32 +02:00
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
8d49af7be8 Use bap 1.6 2019-05-28 17:00:44 +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
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
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
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
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