Difference between revisions of "Overlay generator"
From esoterum.org
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*<code>'''common_ancestors.common'''</code>: Generated by overlay_generator to record common ancestor information so that it need not be recalculated later | *<code>'''common_ancestors.common'''</code>: Generated by overlay_generator to record common ancestor information so that it need not be recalculated later | ||
*<code>'''included_functions.funcs'''</code>: List of functions included in overlay, generated by overlay_generator | *<code>'''included_functions.funcs'''</code>: List of functions included in overlay, generated by overlay_generator | ||
| − | *<code>'''graph_[1-8].dot'''</code> and <code>'''graph_[1-8].ps'''</code>: dotty and postscript representations of GCCFG at various stages of construction, graphs | + | *<code>'''graph_[1-8].dot'''</code> and <code>'''graph_[1-8].ps'''</code>: dotty and postscript representations of GCCFG at various stages of construction, graphs following graph_4 each represent an overlay algorithm |
| + | |||
| + | |||
| + | === Makefile settings === | ||
| + | *Auto overlay Makefile: | ||
| + | :<code>'''MY_CFLAGS += -fdump-tree-cfg -ffunction-sections -Wl,--auto-overlay -Wl,--auto-overlay=linker.script'''</code> (note that the cfg switch is not required here) | ||
| + | :<code>'''LDFLAGS += -Wl,-Map,spu.map -Wl,--auto-overlay -Wl,--gc-sections'''</code> (-Map,spu.map switch is not required, -gc-sections is used to dump unused .bss .txt and .data sections in spu.map) | ||
| + | *Makefile with linker.script.ed === | ||
| + | :<code>'''LDFLAGS= -Wl,-T,linker.script -Wl,-Map,spu.map -Wl,--gc-sections (-gc-sections is used to dump unused .bss .txt and .data sections in spu.map) | ||
Revision as of 01:43, 15 November 2009
List of support files
function_sizes.nm: Required by overlay_generator, generated from object files using the command line:
nm --size-sort *.o > function_sizes.nm
region_sizes_file.dat: Used by script to describe what sizes of scratchpad memory to use, the contents are three space delimited numbers given in bytes: start_size stop_size step_sizeroot_node.configure_overlay_generator: Used by script to describe the root function for the project folderobject_filename.cfg: Needed by overlay generator to determine GCCFG of project code, one file is generated for each object file by gcc when the-fdump-tree-cfgswitch is given inCFLAGS
List of files generated by overlay_generator
common_ancestors.common: Generated by overlay_generator to record common ancestor information so that it need not be recalculated laterincluded_functions.funcs: List of functions included in overlay, generated by overlay_generatorgraph_[1-8].dotandgraph_[1-8].ps: dotty and postscript representations of GCCFG at various stages of construction, graphs following graph_4 each represent an overlay algorithm
Makefile settings
- Auto overlay Makefile:
MY_CFLAGS += -fdump-tree-cfg -ffunction-sections -Wl,--auto-overlay -Wl,--auto-overlay=linker.script(note that the cfg switch is not required here)LDFLAGS += -Wl,-Map,spu.map -Wl,--auto-overlay -Wl,--gc-sections(-Map,spu.map switch is not required, -gc-sections is used to dump unused .bss .txt and .data sections in spu.map)
- Makefile with linker.script.ed ===
LDFLAGS= -Wl,-T,linker.script -Wl,-Map,spu.map -Wl,--gc-sections (-gc-sections is used to dump unused .bss .txt and .data sections in spu.map)
