esp32: also add -mfix-esp32-psram-cache-issue to LDFLAGS

xtensa-esp32-elf-gcc selects among the multilib configurations based
on the presence of -mfix-esp32-psram-cache-issue flag. Pass this flag
in LDFLAGS so that the correct libraries are linked.

Reported in https://github.com/espressif/esp-idf/issues/3624

diff --git a/components/esp32/Makefile.projbuild b/components/esp32/Makefile.projbuild
index 0ae77a69d28073bd9cc96bb20cc8183293396848..cf8746f2686255267f0007b8701871fccd71b798 100644 (file)
--- a/components/esp32/Makefile.projbuild
+++ b/components/esp32/Makefile.projbuild
@@ -2,6 +2,7 @@
 ifdef CONFIG_SPIRAM_CACHE_WORKAROUND
 CFLAGS+=-mfix-esp32-psram-cache-issue
 CXXFLAGS+=-mfix-esp32-psram-cache-issue
+LDFLAGS+=-mfix-esp32-psram-cache-issue
 endif
 
 # Enable dynamic esp_timer overflow value if building unit tests