diff --git a/components/esp_common/include/esp_attr.h b/components/esp_common/include/esp_attr.h
index c8c6c4d5f0c..8d78cfa9be6 100644
--- a/components/esp_common/include/esp_attr.h
+++ b/components/esp_common/include/esp_attr.h
@@ -90,7 +90,17 @@ extern "C" {
 
 // Forces a string into DRAM instead of flash
 // Use as esp_rom_printf(DRAM_STR("Hello world!\n"));
-#define DRAM_STR(str) (__extension__({static const DRAM_ATTR char __c[] = (str); (const char *)&__c;}))
+// The string is placed into a uniquely-named variable in a uniquely-named
+// subsection of .dram1. Both names are derived from a single __COUNTER__ value.
+// This avoids "section type conflict" errors under LTO, where the local static
+// variables generated by DRAM_STR in different translation units would otherwise
+// share the same name and the same DRAM_ATTR section name after the units are merged.
+#define DRAM_STR(str) _DRAM_STR_IMPL(str, __COUNTER__)
+#define _DRAM_STR_COMBINE(x, y) x ## y
+#define _DRAM_STR_IMPL(str, counter) \
+    _DRAM_STR_IMPL2(str, _DRAM_STR_COMBINE(__c, counter), _SECTION_ATTR_IMPL(".dram1.str", counter))
+#define _DRAM_STR_IMPL2(str, varname, attr) \
+    (__extension__({static const attr char varname[] = (str); (const char *)&varname;}))
 
 #if CONFIG_SOC_RTC_FAST_MEM_SUPPORTED || CONFIG_SOC_RTC_SLOW_MEM_SUPPORTED
 // Forces data into RTC memory. See "docs/deep-sleep-stub.rst"