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62 Commits 1 Branch 4 Tags
f9635841f6f4110cdef824a0547f94295fc247d6
Commit Graph
45 Commits
Author SHA1 Message Date
nnosov f9635841f6 right caculation of DW_OP_GNU_entry_value, use caller's information 2020-01-26 15:36:33 +04:00
nnosov 898fa1e5e8 add dictionary implementation 2020-01-25 17:26:16 +04:00
nnosov daf58bce70 save call-site parameters in caller 2020-01-25 17:25:59 +04:00
nnosov 4f94a9e1c2 dwarf stack: save expression and add is_exp_equal() to compare 
expressions
 2020-01-25 17:24:36 +04:00
nnosov e48cfddeb0 print_stack() raw implementation 2020-01-25 17:22:45 +04:00
nnosov 80018f8808 use CFA derived from DWARF info instad of libunwind caller's SP since 
libunwind don't show right SP for callers in shared objects
 2020-01-24 16:54:05 +04:00
nnosov 48f37ec3e8 better logging formatting, print_registers() 2020-01-24 15:45:33 +04:00
nnosov fdad3480f9 colorize log messages written to console correspondingly to severity of 
the message
 2020-01-24 14:57:20 +04:00
nnosov f48bf41cbb added print_registers() to context 2020-01-24 14:43:43 +04:00
nnosov 952b71d9d3 bunch of changes. mainly is: got right CFA from both libunwind & libdw 2020-01-23 19:49:51 +04:00
nnosov 15a56dfc63 fix dw_op_deref: fetch 8 byte value instead of 4 2020-01-17 09:47:28 +04:00
nnosov dcfbcd0952 implemented base support of DWARF lexical block and call site 2020-01-17 09:44:59 +04:00
nnosov e215c6af76 added dw_op_deref_size, adjusted dw_op_deref, fixed 
DW_OP_GNU_entry_value handling
 2020-01-17 09:44:01 +04:00
nnosov 6d6f0d2d45 another one fix to dw_op_breg_x. try to calc DW_OP_GNU_entry_value in 
caller frame
 2020-01-16 17:48:06 +04:00
nnosov 524c4fa52d fixes for operations: dw_op_addr, dw_op_deref, dw_op_breg_x. Dereference 
memory location if it's last on the dwarf stack
 2020-01-16 17:21:26 +04:00
nnosov 1e395e5cac fix for find dwarf CU for function, fix for find library base address 2020-01-16 16:51:36 +04:00
nnosov 18450ef1b2 added Makefile for framework 2020-01-16 16:41:33 +04:00
nnosov 7b69c304a9 .gitignore for framework 2020-01-16 16:41:03 +04:00
nnosov ba9db80f07 introduce parent frame 2020-01-16 16:22:17 +04:00
nnosov ab58889d93 better debug messaging 2020-01-16 15:30:05 +04:00
nnosov 1cddd773bc use two stage unwinding: 1st is simply detection of function name using 
libunwind and save functions cursor. 2nd - use dwarf information to cath
as more info as possible. this approach also allows to dereference
DW_OP_GNU_value operation since it need access to caller frame from
callee context
 2020-01-16 14:54:42 +04:00
nnosov eadbe9a80a small comment that seems that DW_OP_GNU_entry_value does something that 
DW_OP_entry_value
 2020-01-16 12:34:02 +04:00
nnosov 132e0d3854 temporary extract from pst_parameter location dwarf handling to 
handle_location()
 2020-01-16 12:33:07 +04:00
nnosov 80285dd94e fix SF in print_expr_block() due to wrong dereference of stack pointer 
to memory location
 2020-01-16 12:31:55 +04:00
nnosov a60045d9f4 do not handle return parameter value since it's unaccessible in stack 
trace (no functions returns)
 2020-01-14 19:28:38 +04:00
nnosov e2bdd31cef use internal linkedlist implementation instead of std::list, 
std::vector. make stack trace a bit more complex
 2020-01-14 18:03:11 +04:00
nnosov b49318cd11 retrieve return value of function, show frame number on print 2020-01-14 16:57:21 +04:00
nnosov 4bc8c15918 take care that parameter may have 'undefined' or 'constant' values 2020-01-14 14:54:47 +04:00
nnosov 2b3db0f936 better and more dwarf info printing 2020-01-14 14:20:03 +04:00
nnosov eb9dc1341d introduce printing functions and their parameters on base of dwarf info 2020-01-14 13:47:08 +04:00
nnosov fc6a81b460 move calc_expression() & get_value() from context to DWARF stack 2020-01-14 12:21:00 +04:00
nnosov 5ee3935dc2 move out value retrieval from expression evaluation. add get_value() 2020-01-14 11:48:08 +04:00
nnosov 6b43827894 create and use mapping between DW_OP_Rex/breg(x) and appropriate 
platform-dependent register number
 2020-01-14 09:12:00 +04:00
nnosov b955926d86 added DW_OP_GNU_entry_value operation handling 2020-01-14 08:56:49 +04:00
nnosov fdfce06ee0 one bug fix & reformeatting of the code 2020-01-13 22:13:39 +04:00
nnosov 2f7dfeca0b small reformatting of the code 2020-01-13 22:13:08 +04:00
nnosov 964c6d888e remove unused code 2020-01-13 19:45:08 +04:00
nnosov 1abe271d10 small refactoring and bug fixing of DWARF operations processing 2020-01-13 18:49:11 +04:00
nnosov a1954685e5 add suppoert of dw_op_fbreg & dw_op_call_frame_cfa DWARF operations and 
use them
 2020-01-13 18:37:56 +04:00
nnosov 50bebda6a1 initial implementation of DWARF Expression state machine parsing and 
it's usage for retrieve arguments/variables of function
 2020-01-13 17:21:46 +04:00
nnosov 08ba87ce98 raw and dirty implementation of handling of constant, stack, 
arithmetical and logical operations on DWARF expression stack machine
 2020-01-11 18:56:03 +04:00
nnosov 58f14a695d extract context from handler and move it to common. define functions to 
use in calculation of DWARF expressions
 2020-01-11 14:56:45 +04:00
nnosov 8f7fed23dc global refactoring: use libunwind to get stack frame, get rid on process 
base address, better DWARF DW_OP_XXX handling, initial implementation of
parameter's values retrieval
 2020-01-09 18:49:45 +04:00
nnosov 83fc2bc3ef beterr DWARF expressions logging, trying to get CFI info for registers 2020-01-05 12:29:18 +04:00
nnosov 1f3a6237ac pstrace: initial commit 2020-01-04 14:28:08 +04:00