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rp2: Link with nano.specs, add linker cref table #19299

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rp2: Link with nano.specs, add linker cref table #19299

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f2051ab
rp2: Add cross-reference table in the linker map file.
projectgus Jun 3, 2026
b353960
rp2: Link nano.specs for newlib-nano.
projectgus Jun 3, 2026
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4 changes: 4 additions & 0 deletions ports/rp2/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -538,6 +538,10 @@ target_link_options(${MICROPY_TARGET} PRIVATE
-Wl,--defsym=__micropy_c_heap_size__=${MICROPY_C_HEAP_SIZE}
-Wl,--wrap=runtime_init_clocks
-Wl,--print-memory-usage
-Wl,--cref
# pico-sdk already passes --specs=nosys.specs to stub out syscall handlers,
# passing nano.specs as well means that newlib-nano libc functions will be used
--specs=nano.specs
)

if(DEFINED PICO_FLASH_SIZE_BYTES)
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