Merge pull request #2694 from particle-iot/feature/printf-i-long-long

[services] add long long support to printf/scanf
particle-iot · Sep 19, 2023 · 4169b07 · 4169b07
2 parents 5a83bd0 + a5ea7a3
commit 4169b07
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diff --git a/build/arm-tools.mk b/build/arm-tools.mk
@@ -10,8 +10,10 @@ include $(COMMON_BUILD)/common-tools.mk
 AR = $(GCC_ARM_PATH)$(GCC_PREFIX)gcc-ar
 
 # Newlib has a bug in fake stdin/stdout/stderr implementation and leaks memory
-# Stub printf/fprintf out
+# Stub printf/fprintf out, override printf/scanf for 64-bit int/unsigned support
 CFLAGS += -fno-builtin-puts -fno-builtin-printf -Wl,--wrap=puts -Wl,--wrap=printf
+CFLAGS += -Wl,--wrap=_printf_i -Wl,--wrap=_svfprintf_r
+CFLAGS += -Wl,--wrap=_scanf_i -Wl,--wrap=__ssvfscanf_r
 
 #
 # default flags for targeting ARM Cortex-M3