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Commit8f1af8b

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linked: enforce maximum size of sketch in linker script
Stop the build when a sketch exceeds the maximum size defined by the'user_sketch' node in the device tree.Signed-off-by: Luca Burelli <l.burelli@arduino.cc>
1 parent6c82ffd commit8f1af8b

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3 files changed

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-4
lines changed

3 files changed

+5
-4
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‎extra/build.sh‎

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@@ -95,6 +95,7 @@ extra/gen_provides.py "${BUILD_DIR}/zephyr/zephyr.elf" -LF \
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"+kheap_llext_heap" \
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"+kheap__system_heap" \
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"*sketch_base_addr=_sketch_start" \
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"*sketch_max_size=_sketch_max_size" \
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"malloc=__wrap_malloc" \
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"free=__wrap_free" \
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"realloc=__wrap_realloc" \

‎loader/main.c‎

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@@ -66,6 +66,7 @@ void llext_entry(void *arg0, void *arg1, void *arg2)
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__attribute__((retain))constuintptr_tsketch_base_addr=DT_REG_ADDR(DT_GPARENT(DT_NODELABEL(user_sketch)))+
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DT_REG_ADDR(DT_NODELABEL(user_sketch));
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__attribute__((retain))constuintptr_tsketch_max_size=DT_REG_SIZE(DT_NODELABEL(user_sketch));
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staticintloader(conststructshell*sh)
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{

‎variants/_linked/linker_script.ld‎

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@@ -1,10 +1,9 @@
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INCLUDE"provides.ld"
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PROVIDE(TEXT_LENGTH =0x100000);
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MEMORY
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{
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FLASH (rx) :ORIGIN = _sketch_start +16,LENGTH = TEXT_LENGTH
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/* 16 below compensates for the zsk header that is added before the .bin*/
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FLASH (rx) :ORIGIN = _sketch_start +16,LENGTH = _sketch_max_size -16
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RAM (rwx) :ORIGIN = kheap_llext_heap,LENGTH = kheap_llext_heap_size
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}
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@@ -117,4 +116,4 @@ SECTIONS {
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.got : {
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KEEP(*(.got .got.* .got.plt .got.plt*))
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}
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}
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}

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