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Geza Lore ff425369ac
Reduce .rodata footprint of trace initialization (#3250) 
Trace initialization (tracep->decl* functions) used to explicitly pass
the complete hierarchical names of signals as string constants. This
contains a lot of redundancy (path prefixes), does not scale well with
large designs and resulted in .rodata sections (the string constants) in
ELF executables being extremely large.

This patch changes the API of trace initialization that allows pushing
and popping name prefixes as we walk the hierarchy tree, which are
prepended to declared signal names at run-time during trace
initialization. This in turn allows us to emit repeat path/name
components only once, effectively removing all duplicate path prefixes.
On SweRV EH1 this reduces the .rodata section in a --trace build by 94%.

Additionally, trace declarations are now emitted in lexical order by
hierarchical signal names, and the top level trace initialization
function respects --output-split-ctrace.
2021-12-19 15:15:07 +00:00
..
gtkwave Update GTKwave from upstream. 2021-09-01 20:45:41 -04:00
vltstd Fix DPI open array handling issues, and do internal coverage (#2350). 2020-12-09 22:15:34 -05:00
.gitignore Support VPI product info, warning calls, etc, bug588. 2013-01-17 21:40:37 -05:00
verilated_config.h.in Commentary: Cleanup all include/* header comments. 2021-03-20 17:46:00 -04:00
verilated_cov_key.h Commentary: Cleanup all include/* header comments. 2021-03-20 17:46:00 -04:00
verilated_cov.cpp Internals: More const. No functional change intended. 2021-11-25 09:05:50 -05:00
verilated_cov.h Commentary 2021-03-28 11:50:05 -04:00
verilated_dpi.cpp Internals: Remove some unused arguments. 2021-11-28 13:44:16 -05:00
verilated_dpi.h Includes: Refactor verilated.h and deprecate verilated_heavy.h (#2701). 2021-07-24 10:00:33 -04:00
verilated_fst_c.cpp Reduce .rodata footprint of trace initialization (#3250) 2021-12-19 15:15:07 +00:00
verilated_fst_c.h Commentary on traces (#2925) 2021-05-13 18:57:39 -04:00
verilated_fst_sc.cpp Add FST SystemC tracing (#2806) 2021-04-06 16:18:58 -04:00
verilated_fst_sc.h Internals: Add more const. No functional change. 2021-06-18 22:24:08 -04:00
verilated_funcs.h Fix VL_STREAML_FAST_QQI with 64 bit left-hand-side (#3232) (#3235) 2021-12-09 17:30:04 -05:00
verilated_heavy.h Includes: Refactor verilated.h and deprecate verilated_heavy.h (#2701). 2021-07-24 10:00:33 -04:00
verilated_imp.h Internals: Revert previous commit const for clang. 2021-11-25 09:47:06 -05:00
verilated_intrinsics.h Commentary: Cleanup all include/* header comments. 2021-03-20 17:46:00 -04:00
verilated_profiler.h Internals: More const. No functional change intended. 2021-11-25 09:05:50 -05:00
verilated_save.cpp Internals: More const. No functional change intended. 2021-11-25 09:05:50 -05:00
verilated_save.h Internals: More const. No functional change intended. 2021-11-25 09:05:50 -05:00
verilated_sc.h Commentary: Cleanup all include/* header comments. 2021-03-20 17:46:00 -04:00
verilated_sym_props.h Internals: More const. No functional change intended. 2021-11-25 09:05:50 -05:00
verilated_syms.h Includes: Refactor verilated.h and deprecate verilated_heavy.h (#2701). 2021-07-24 10:00:33 -04:00
verilated_threads.cpp Verilator_gantt now shows the predicted mtask times, eval times, and additional statistics. 2021-09-23 22:59:36 -04:00
verilated_threads.h Internals: More const. No functional change intended. 2021-11-25 09:05:50 -05:00
verilated_trace_defs.h Improve scope types in FST and VCD traces (#2805). 2021-04-07 09:55:11 -04:00
verilated_trace_imp.cpp Reduce .rodata footprint of trace initialization (#3250) 2021-12-19 15:15:07 +00:00
verilated_trace.h Reduce .rodata footprint of trace initialization (#3250) 2021-12-19 15:15:07 +00:00
verilated_types.h Primary inputs and outputs (VL_INW/VL_OUTW) now use VlWide type (#3236). 2021-12-09 19:41:33 -05:00
verilated_vcd_c.cpp Reduce .rodata footprint of trace initialization (#3250) 2021-12-19 15:15:07 +00:00
verilated_vcd_c.h Internals: More const. No functional change intended. 2021-11-25 09:05:50 -05:00
verilated_vcd_sc.cpp Commentary: Cleanup all include/* header comments. 2021-03-20 17:46:00 -04:00
verilated_vcd_sc.h Internals: Use C++11 const and initializers. No functional change intended. 2021-07-24 08:36:11 -04:00
verilated_vpi.cpp Internals: More const. No functional change intended. 2021-11-26 17:55:36 -05:00
verilated_vpi.h Internals: Add more const. No functional change. 2021-06-18 22:24:08 -04:00
verilated.cpp Reduce .rodata footprint of trace initialization (#3250) 2021-12-19 15:15:07 +00:00
verilated.h Reduce .rodata footprint of trace initialization (#3250) 2021-12-19 15:15:07 +00:00
verilated.mk.in Remove unused CFG_CXXFLAGS_STD_OLDEST 2021-09-26 16:01:25 -04:00
verilated.v Commentary: Cleanup all include/* header comments. 2021-03-20 17:46:00 -04:00
verilatedos.h Fix timescale portability on Arm64 (#3222). 2021-11-28 15:47:19 -05:00