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Author	SHA1	Message	Date
kcbanner	d226b74ae8	dwarf: add ExpressionError to work around the compiler not being able to infer it ... dwarf: implement OP.entry_value, add tests	2023-07-20 22:58:15 -04:00
kcbanner	21d0154139	dwarf: skip register tests on unimplemented arch / os, add tests for type convesions ... debug: dupeContext -> copyContext	2023-07-20 22:58:15 -04:00
kcbanner	021f537863	dwarf: fixup default endianness in ExpressionOptions, add control flow tests	2023-07-20 22:58:15 -04:00
kcbanner	54ca62fef4	dwarf: fixup regBytes for the case where there is no context support ... expressions: add more tests, fix tests for mipsel debug: add lookupModuleName implementation for macos	2023-07-20 22:58:15 -04:00
kcbanner	5c0d4cef1a	debug: add dupeContext, store a pointer to a copy of ThreadContext on UnwindContext	2023-07-20 22:58:15 -04:00
kcbanner	463bbe7807	dwarf: implement constx,addrx, begin adding DWARF expression tests	2023-07-20 22:58:15 -04:00
kcbanner	5f72c6508d	debug: rename StackTraceContext to ThreadContext ... dwarf: use ThreadContext instead of os.ucontext_t dwarf: add regBytes impl for windows dwarf: fixup expression types for non-native	2023-07-20 22:58:15 -04:00
kcbanner	8547c42ba5	dwarf: expression fixups for non-64bit arches, check call_frame_context when writing expressions	2023-07-20 22:58:15 -04:00
kcbanner	424b1299a8	dwarf: add expression writer	2023-07-20 22:58:14 -04:00
kcbanner	ad5f74c0b1	dwarf: introduce ExpressionContext, add more expression opcodes	2023-07-20 22:58:14 -04:00
kcbanner	576ffaa329	darwin: update mcontext_t definition for aarch64 to add neon state	2023-07-20 22:58:14 -04:00
kcbanner	412cd789bf	debug: fixup base address calculations for macho ... dwarf: fixup x86 register mapping logic dwarf: change the register context update to update in-place instead of copying debug: always print the unwind error type	2023-07-20 22:58:14 -04:00
kcbanner	b85f84061a	dwarf: don't dupe function names, as they are backed by the memory mapped sections ... dwarf: const-correctness fixups dwarf: implement the remaining register rules dwarf: start implmenting the DWARF expression stack machine	2023-07-20 22:58:14 -04:00
kcbanner	62598c2187	debug: rework how unwind errors are printed, and add module name lookup for linux ... This change enhances stack trace output to include a note that debug info was missing, and therefore the stack trace may not be accurate. For example, if the user is using a libc compiled with -fomit-frame-pointer and doesn't have debug symbols installed, any traces that begin in a libc function may not unwind correctly. This allows the user to notice this and potentially install debug symbols to improve the output.	2023-07-20 22:58:14 -04:00
kcbanner	f04f9705cc	dwarf: add support for DWARF5 DW_AT_ranges in subprograms, add DebugRangeIterator ... Some DWARF5 subprograms have non-contiguous instruction ranges. An example of such a function is `puts` in Ubuntu's libc. This change fixes name lookups for functions that use DW_AT_range in their DIE.	2023-07-20 22:58:14 -04:00
kcbanner	395ab474eb	dwarf: fix logic error in eh_frame_hdry binary search	2023-07-20 22:58:14 -04:00
kcbanner	6a5e2b713f	debug: de-duplicate some code in macos ModuleDebugInfo	2023-07-20 22:58:14 -04:00
kcbanner	ccc9f82068	c: fixup getcontext ... debug: supports_context -> have_ucontext, supports_getcontext -> have_getcontext test: rework dwarf_unwind test case to also test the non-libc path	2023-07-20 22:58:14 -04:00
kcbanner	7bc1695f15	c: musl doesn't implement getcontext, so defer to our implementation in that case	2023-07-20 22:58:14 -04:00
kcbanner	9c908ea814	test: add standalone test for DWARF unwinding with -fomit-frame-pointer	2023-07-20 22:58:14 -04:00
kcbanner	23d9b59b86	c: add getcontext ... debug: make getContext public	2023-07-20 22:58:14 -04:00
kcbanner	f991b9dc05	debug: fix reading -gdwarf generated debug sections in COFF files ... I had accidentally regressed support for -gdwarf in 461fb499f3 when I changed the logic to use the already-mapped exe/dll image instead of loading it from disk. The string table is mapped as all zeroes by the loader, so if a section header's name is longer than 8 bytes (like the ones generated by -gdwarf), then the name can't be read. Now, if any section headers require the string table, the file is mapped from disk. windows: Add NtCreateSection/NtMapViewOfSection/NtUnmapViewOfSection	2023-07-20 22:58:14 -04:00
kcbanner	caa334712f	linux: rework getcontext to closer match the specification (saved IP/SP match the state after it would return) ... debug: fixup ucontext_t check	2023-07-20 22:58:14 -04:00
kcbanner	89ef004646	debug: x86 unwinding support, more unwinding fixes ... - Fix unwindFrame using the previous FDE row instead of the current one - Handle unwinding through noreturn functions - Add x86-linux getcontext - Fixup x86_64-linux getcontext not restoring the fp env - Fix start_addr filtering on x86-windows	2023-07-20 22:58:14 -04:00
kcbanner	5cd8ab2473	debug: enhance writeCurrentStackTrace to use context-based unwinding when available	2023-07-20 22:58:14 -04:00
kcbanner	a9b6f2d929	dwarf: add support for .debug_frame and CIE version 4	2023-07-20 22:58:14 -04:00
kcbanner	41832aa1e6	linux: add getcontext for x86_64	2023-07-20 22:58:14 -04:00
kcbanner	6abf1fbfe6	update to new builtin syntax	2023-07-20 22:58:14 -04:00
kcbanner	84a1244b6c	dwarf: use eh_frame length if it's available	2023-07-20 22:58:14 -04:00
kcbanner	521988299d	add more safety checks when searching for eh_frame entries using findEntry	2023-07-20 22:58:13 -04:00
kcbanner	a47212c72e	- rebase and update to lastest master	2023-07-20 22:58:13 -04:00
kcbanner	adbc5bbdb3	dwarf: fixup pointer cast	2023-07-20 22:58:13 -04:00
kcbanner	5781016c35	dwarf: add support for .eh_frame_hdr when unwinding ... - .eh_frame_hdr contains a binary-searchable data structure for finding an FDE. If present, we can use this section to avoid having to parse the entire FDE/CIE list in the binary, instead only entries that are actually required for unwinding are read. - rework the inputs pc-relative pointer decoding to support both already-mapped sections as well as sections mapped from a file - store the VirtualMachine on UnwindContext so the allocations can be reused	2023-07-20 22:58:13 -04:00
kcbanner	dd2035735f	debug: fix memory leak when an error occurs opening a pdb file	2023-07-20 22:58:13 -04:00
kcbanner	865d4d2d8c	debug: more fixups for mips linux not having ucontext_t ... - increase test-std max_rss to 1.1 above the CI observed amount	2023-07-20 22:58:13 -04:00
kcbanner	5ebca4392e	debug: fixing more compile errors on arches that I hadn't tested on yet	2023-07-20 22:58:13 -04:00
kcbanner	551f153718	dwarf: fixes for non-64 bit systems	2023-07-20 22:58:13 -04:00
kcbanner	2f75d20d87	debug: use an explicit context type instead of anytype for dumpStackTraceFromBase, update crash_report to use this for exceptions	2023-07-20 22:58:13 -04:00
kcbanner	d74c8acdfb	dwarf: fixup for sort changes	2023-07-20 22:58:13 -04:00
kcbanner	d1a9bb1fea	debug: fixup context detection for wasi	2023-07-20 22:58:13 -04:00
kcbanner	a325d7f6d1	fmt and cleanup	2023-07-20 22:58:13 -04:00
kcbanner	c98e03fc7e	- rework CFI instruction parsing to not use std.meta ... - move register formatting code to zig-dwardump	2023-07-20 22:58:13 -04:00
kcbanner	e72e762d1e	dwarf: implement more register mappings, fix up macos compile	2023-07-20 22:58:13 -04:00
kcbanner	9145ff7da0	dwarf: implement more register number mappings ... - add dwarf.abi.RegisterContext to handle register numbers changing based on DWARF format	2023-07-20 22:58:13 -04:00
kcbanner	b449d98a93	- rework StackIterator to optionally use debug_info to unwind the stack ... - add abi routines for getting register values - unwding is working!	2023-07-20 22:58:13 -04:00
kcbanner	69399fbb82	- add default register rule ... - fixup eh pointer decoding	2023-07-20 22:58:13 -04:00
kcbanner	a0a40c2e7e	- implement more opcodes	2023-07-20 22:58:13 -04:00
kcbanner	7b4611cfb3	- move writing code to zig-dwarfdump ... - implement restore_state, restore_extended, offset_extended	2023-07-20 22:58:13 -04:00
kcbanner	338df862d1	- fix remember_state ... - implement def_cfa_register	2023-07-20 22:58:13 -04:00
kcbanner	f3f3c877e0	- add DWARF expression parser ... - change read apis to use a stream - add register formatters	2023-07-20 22:58:13 -04:00