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Copy pathpatches_main.c
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29 lines (29 loc) · 1.57 KB
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/*
* Single translation unit for all injected CFW patch code.
*
* Historically the patch sources below were each compiled and PLACED as a
* separate relocatable blob, which meant they could not call one another and
* patch_compress.py had to lay out several blobs at several base addresses. Compiling
* them as ONE translation unit instead yields a SINGLE blob: build.py's mini-linker
* resolves any cross-file call/relocation, and every injected entry point is simply
* base + its offset in the one blob.
*
* The sources deliberately share no typedef / macro / function names, so a plain
* #include chain compiles cleanly. Each keeps its own `#include <stdint.h>` (idempotent
* via the standard header guard). Order is not significant — build.py looks functions
* up by name.
*
* Being one translation unit is also what lets the injected code take the address of
* its own functions (z_stream zalloc/zfree, the seq_tick osTimer callback) with plain
* `&fn`: -fropi makes an intra-CU function address PC-relative and relocation-free, so
* no load address is needed at build time. Splitting these back into separate CUs would
* turn those into absolute relocations that build.py rejects.
*
* decompress.c (frag_write: the CompressMode-driven per-fragment 1bpp->4bpp expander)
* was dropped in the 2.2.6.10 rebase — stock now uses CompressMode itself for RLE/LZ4,
* and image_deferred in zlib_glue.c is the better decompressor. The file is kept in the
* tree for reference but is deliberately NOT built.
*/
#include "zlib_glue.c"
#include "settings_ext.c"
#include "gesture_fwd.c"