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Showing content from https://github.com/espressif/esp-idf/commit/977854975 below:

Merge branch 'bugfix/tw28146_make_wifi_iram_optimization_configurable… · espressif/esp-idf@9778549 · GitHub

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 @@ -72,6 +72,14 @@ else()

72 72


 register_component()

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 target_link_libraries(esp32 "-L ${CMAKE_CURRENT_SOURCE_DIR}/lib")

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 # Add a different linker search path depending on WiFi optimisations

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  if (CONFIG_ESP32_WIFI_IRAM_OPT)

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 target_link_libraries(esp32 "-L ${CMAKE_CURRENT_SOURCE_DIR}/ld/wifi_iram_opt")

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  else()

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 target_link_libraries(esp32 "-L ${CMAKE_CURRENT_SOURCE_DIR}/ld/wifi_iram_noopt")

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  endif()

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  if(NOT CONFIG_NO_BLOBS)

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 target_link_libraries(esp32 coexist core espnow mesh net80211 phy pp rtc smartconfig wpa2 wpa wps)

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  endif()

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 @@ -1165,7 +1165,14 @@ config ESP32_WIFI_SOFTAP_BEACON_MAX_LEN

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 932 (752+36*5).

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 Setting a longer beacon length also assists with debugging as the conflicting root nodes can be identified more quickly.

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 config ESP32_WIFI_IRAM_OPT

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 bool "WiFi IRAM speed optimization"

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 default y

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 help

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 Select this option to place frequently called Wi-Fi library functions in IRAM. When this option is disabled,

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 more than 10Kbytes of IRAM memory will be saved but Wi-Fi throughput will be reduced.

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 endmenu # Wi-Fi

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 menu PHY

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 @@ -18,6 +18,13 @@ endif

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 #specifies its own scripts.

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 LINKER_SCRIPTS += esp32.common.ld esp32.rom.ld esp32.peripherals.ld

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 # Add a different linker search path depending on WiFi optimisations

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 ifdef CONFIG_ESP32_WIFI_IRAM_OPT

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 COMPONENT_ADD_LDFLAGS += -L $(COMPONENT_PATH)/ld/wifi_iram_opt

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 else

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 COMPONENT_ADD_LDFLAGS += -L $(COMPONENT_PATH)/ld/wifi_iram_noopt

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 endif

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 #Force pure functions from libgcc.a to be linked from ROM

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 LINKER_SCRIPTS += esp32.rom.libgcc.ld

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 @@ -159,6 +159,7 @@ SECTIONS

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  *libheap.a:multi_heap_poisoning.*(.literal .text .literal.* .text.*)

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  *libesp32.a:panic.*(.literal .text .literal.* .text.*)

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  *libesp32.a:core_dump.*(.literal .text .literal.* .text.*)

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 INCLUDE wifi_iram.ld

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  *libapp_trace.a:(.literal .text .literal.* .text.*)

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  *libxtensa-debug-module.a:eri.*(.literal .text .literal.* .text.*)

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  *librtc.a:(.literal .text .literal.* .text.*)


 @@ -326,6 +327,7 @@ SECTIONS

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 _text_start = ABSOLUTE(.);

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 *(.literal .text .literal.* .text.* .stub .gnu.warning .gnu.linkonce.literal.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*)

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 *(.irom0.text) /* catch stray ICACHE_RODATA_ATTR */

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 *(.wifi0iram .wifi0iram.*) /* catch stray WIFI_IRAM_ATTR */

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 *(.fini.literal)

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 *(.fini)

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 *(.gnu.version)

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 @@ -0,0 +1,2 @@

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 /* This snippet does nothing, if WiFi IRAM optimisations

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 are disabled. */

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 @@ -0,0 +1,4 @@

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 /* Link WiFi library .wifi0iram sections to IRAM

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 if this snippet is included */

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 *libnet80211.a:( .wifi0iram .wifi0iram.*)

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 *libpp.a:( .wifi0iram .wifi0iram.*)

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