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Add IWRAM section attribute macro to mimic -ffunction-sections

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See the comment added in this commit for details. Currently unused.
Would save some IWRAM usage in the matrix implementation at the cost of
readability. If one operation on a matrix size is used, most other
operations will likely be used too, so in practice this may not change
IWRAM usage much. Only including the matrix sizes that are used in the
final binary would likely have a greater impact. FURTHER TESTING
REQUIRED.
This commit is contained in:
Madeline Busig 2024-10-08 00:00:22 -07:00
parent 64ae33535b
commit 59b1bf5cda
1 changed files with 5 additions and 0 deletions
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5
include/mtl/target.hpp
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@ -27,6 +27,11 @@
#ifdef __GBA__
// If a section attribute is used, the symbol will be placed in the section
// exactly as specified. This means that when -ffunction-sections is used, functions
// will no longer be placed in separate sections. This macro is used to mimic
// the effect of -ffunction-sections while still placing the function in IWRAM.
#define GBA_IWRAM_FUNC(f) [[gnu::section(".iwram." #f), gnu::long_call]]
#define GBA_IWRAM [[gnu::section(".iwram"), gnu::long_call]]
#define GBA_EWRAM [[gnu::section(".ewram"), gnu::long_call]]
#define GBA_IWRAM_DATA [[gnu::section(".iwram")]]