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https://github.com/RIOT-OS/RIOT.git
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b67daab1e8
Another endpoint that was forgotten to overwrite. This fixes the output of the `i2c_scan` shell command that is e.g. included in the test app in `tests/periph/i2c`.
37 lines
1.3 KiB
Makefile
37 lines
1.3 KiB
Makefile
# wrap stdio functions to use mpaland's printf instead of the one from the
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# standard C lib
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LINKFLAGS += -Wl,-wrap=printf
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LINKFLAGS += -Wl,-wrap=fprintf
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LINKFLAGS += -Wl,-wrap=dprintf
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LINKFLAGS += -Wl,-wrap=sprintf
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LINKFLAGS += -Wl,-wrap=snprintf
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LINKFLAGS += -Wl,-wrap=vprintf
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LINKFLAGS += -Wl,-wrap=vfprintf
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LINKFLAGS += -Wl,-wrap=vdprintf
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LINKFLAGS += -Wl,-wrap=vsprintf
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LINKFLAGS += -Wl,-wrap=vsnprintf
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LINKFLAGS += -Wl,-wrap=putchar
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LINKFLAGS += -Wl,-wrap=putc
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LINKFLAGS += -Wl,-wrap=fputc
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LINKFLAGS += -Wl,-wrap=puts
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LINKFLAGS += -Wl,-wrap=fputs
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# By wrapping the newlib only `_printf_common` symbol to the undefined
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# `__wrap__printf_common` symbol, linking will fail if any reference to
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# `_printf_common` remains. Since `_printf_common` is only used by newlib's
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# stdio, we will catch any instance of both mpaland-printf and newlib's stdio
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# being both linked in.
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LINKFLAGS += -Wl,-wrap=_printf_common
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LINKFLAGS += -Wl,-wrap=_fprintf_r
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LINKFLAGS += -Wl,-wrap=_printf_r
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LINKFLAGS += -Wl,-wrap=iprintf
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LINKFLAGS += -Wl,-wrap=fiprintf
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# Workaround for bug in the newlib headers shipped with e.g. Ubuntu 24.04 LTS
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# not defining PRId64 / PRIu64 / PRIx64 / PRIo64 in <inttypes.h> due to an issue
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# in <machine/_default_types.h>. Tested to cause no regression on fixed newlib
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# headers.
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ifneq (,$(filter newlib,$(FEATURES_USED)))
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CFLAGS += -D__int64_t_defined=1
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endif
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