tmedicci commented on PR #14805:
URL: https://github.com/apache/nuttx/pull/14805#issuecomment-2483699730
> __STDC_NO_ATOMICS__
Hi @zyfeier ! Thanks fo your quick response!
In fact, `__STDC_NO_ATOMICS__` wasn't being set. I was able to make it work
with the following patch:
```
diff --git a/arch/xtensa/src/lx6/Toolchain.defs
b/arch/xtensa/src/lx6/Toolchain.defs
index a979b9a0de..76fee69376 100644
--- a/arch/xtensa/src/lx6/Toolchain.defs
+++ b/arch/xtensa/src/lx6/Toolchain.defs
@@ -97,7 +97,7 @@ ifeq ($(CONFIG_ARCH_INSTRUMENT_ALL),y)
ARCHOPTIMIZATION += -finstrument-functions
endif
-ARCHCFLAGS += -fno-common
+ARCHCFLAGS := -fno-common
ARCHCXXFLAGS += -fno-common
ARCHCFLAGS += -Wall -Wstrict-prototypes -Wshadow -Wundef -Wno-attributes
-Wno-unknown-pragmas
@@ -156,7 +156,7 @@ ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
endif
ifeq ($(CONFIG_LIBC_ARCH_ATOMIC),y)
- CFLAGS += -D__STDC_NO_ATOMICS__
+ ARCHCFLAGS += -D__STDC_NO_ATOMICS__
endif
# Default toolchain
```
I had to set `__STDC_NO_ATOMICS__` to `ARCHCFLAGS`. However, this flag was
being set twice while compiling `esp32_boot.c` and a redefinition error
occurred. That's why I had to change it to `ARCHCFLAGS := -fno-common` (to let
it be defined instead of redefined to avoid duplication). I couldn't find
`ARCHCFLAGS :=` anywhere else in the firmware (I couldn't understand why it was
being redefined when processing `esp32_boot.c` too), so I'm not sure if this
patch is acceptable. Any ideas?
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