tools: implement linker script generation

components/esp32/ld/esp32.common.ld.in

@@ -9,7 +9,9 @@ SECTIONS
   .rtc.text :
   {
     . = ALIGN(4);
-    *(.rtc.literal .rtc.text)
+
+    mapping[rtc_text]
+
     *rtc_wake_stub*.*(.literal .text .literal.* .text.*)
     _rtc_text_end = ABSOLUTE(.);
   } > rtc_iram_seg
@@ -49,8 +51,9 @@ SECTIONS
   .rtc.data :
   {
     _rtc_data_start = ABSOLUTE(.);
-    *(.rtc.data)
-    *(.rtc.rodata)
+
+    mapping[rtc_data]
+
     *rtc_wake_stub*.*(.data .rodata .data.* .rodata.* .bss .bss.*)
     _rtc_data_end = ABSOLUTE(.);
   } > rtc_data_location
@@ -61,7 +64,9 @@ SECTIONS
     _rtc_bss_start = ABSOLUTE(.);
     *rtc_wake_stub*.*(.bss .bss.*)
     *rtc_wake_stub*.*(COMMON)
-    *(.rtc.bss)
+
+    mapping[rtc_bss]
+
     _rtc_bss_end = ABSOLUTE(.);
   } > rtc_data_location
 
@@ -152,22 +157,9 @@ SECTIONS
   {
     /* Code marked as runnning out of IRAM */
     _iram_text_start = ABSOLUTE(.);
-    *(.iram1 .iram1.*)
-    *libesp_ringbuf.a:(.literal .text .literal.* .text.*)
-    *libfreertos.a:(.literal .text .literal.* .text.*)
-    *libheap.a:multi_heap.*(.literal .text .literal.* .text.*)
-    *libheap.a:multi_heap_poisoning.*(.literal .text .literal.* .text.*)
-    *libesp32.a:panic.*(.literal .text .literal.* .text.*)
-    *libesp32.a:core_dump.*(.literal .text .literal.* .text.*)
-    *libapp_trace.a:(.literal .text .literal.* .text.*)
-    *libxtensa-debug-module.a:eri.*(.literal .text .literal.* .text.*)
-    *librtc.a:(.literal .text .literal.* .text.*)
-    *libsoc.a:rtc_*.*(.literal .text .literal.* .text.*)
-    *libsoc.a:cpu_util.*(.literal .text .literal.* .text.*)
-    *libhal.a:(.literal .text .literal.* .text.*)
-    *libgcc.a:lib2funcs.*(.literal .text .literal.* .text.*)
-    *libspi_flash.a:spi_flash_rom_patch.*(.literal .text .literal.* .text.*)
-    *libgcov.a:(.literal .text .literal.* .text.*)
+
+    mapping[iram0_text]
+    
     INCLUDE esp32.spiram.rom-functions-iram.ld
     _iram_text_end = ABSOLUTE(.);
     _iram_end = ABSOLUTE(.);
@@ -187,8 +179,6 @@ SECTIONS
     *libbtdm_app.a:(.data .data.*)
     . = ALIGN (4);
     _btdm_data_end = ABSOLUTE(.);
-    *(.data)
-    *(.data.*)
     *(.gnu.linkonce.d.*)
     *(.data1)
     *(.sdata)
@@ -198,14 +188,9 @@ SECTIONS
     *(.sdata2.*)
     *(.gnu.linkonce.s2.*)
     *(.jcr)
-    *(.dram1 .dram1.*)
-    *libesp32.a:panic.*(.rodata .rodata.*)
-    *libphy.a:(.rodata .rodata.*)
-    *libsoc.a:rtc_clk.*(.rodata .rodata.*)
-    *libapp_trace.a:(.rodata .rodata.*)
-    *libgcov.a:(.rodata .rodata.*)
-    *libheap.a:multi_heap.*(.rodata .rodata.*)
-    *libheap.a:multi_heap_poisoning.*(.rodata .rodata.*)
+
+    mapping[dram0_data]
+
     INCLUDE esp32.spiram.rom-functions-dram.ld
     _data_end = ABSOLUTE(.);
     . = ALIGN(4);
@@ -239,6 +224,9 @@ SECTIONS
     *libbtdm_app.a:(.bss .bss.* COMMON)
     . = ALIGN (4);
     _btdm_bss_end = ABSOLUTE(.);
+
+    mapping[dram0_bss]
+
     *(.dynsbss)
     *(.sbss)
     *(.sbss.*)
@@ -248,11 +236,9 @@ SECTIONS
     *(.sbss2.*)
     *(.gnu.linkonce.sb2.*)
     *(.dynbss)
-    *(.bss)
-    *(.bss.*)
     *(.share.mem)
     *(.gnu.linkonce.b.*)
-    *(COMMON)
+
     . = ALIGN (8);
     _bss_end = ABSOLUTE(.);
     /* The heap starts right after end of this section */
@@ -265,8 +251,9 @@ SECTIONS
   .flash.rodata :
   {
     _rodata_start = ABSOLUTE(.);
-    *(.rodata)
-    *(.rodata.*)
+
+    mapping[flash_rodata]
+
     *(.irom1.text) /* catch stray ICACHE_RODATA_ATTR */
     *(.gnu.linkonce.r.*)
     *(.rodata1)
@@ -324,7 +311,10 @@ SECTIONS
   {
     _stext = .;
     _text_start = ABSOLUTE(.);
-    *(.literal .text .literal.* .text.* .stub .gnu.warning .gnu.linkonce.literal.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*)
+
+    mapping[flash_text]
+
+    *(.stub .gnu.warning .gnu.linkonce.literal.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*)
     *(.irom0.text) /* catch stray ICACHE_RODATA_ATTR */
     *(.fini.literal)
     *(.fini)

components/esp32/ld/esp32_fragments.lf

@@ -0,0 +1,80 @@
+[sections:text]
+entries:
+    .text+
+    .literal+
+
+[sections:data]
+entries:
+    .data+
+
+[sections:bss]
+entries:
+    .bss+
+
+[sections:common]
+entries:
+    COMMON
+
+[sections:rodata]
+entries:
+    .rodata+
+
+[sections:rtc_text]
+entries:
+    .rtc.text
+    .rtc.literal
+
+[sections:rtc_data]
+entries:
+    .rtc.data
+
+[sections:rtc_rodata]
+entries:
+    .rtc.rodata
+
+[sections:rtc_bss]
+entries:
+    .rtc.bss
+
+[sections:iram]
+entries:
+    .iram1+
+
+[sections:dram]
+entries:
+    .dram1+
+
+[scheme:default]
+entries:
+    text -> flash_text
+    rodata -> flash_rodata
+    data -> dram0_data
+    bss -> dram0_bss
+    common -> dram0_bss
+    iram -> iram0_text
+    dram -> dram0_data
+    rtc_text -> rtc_text
+    rtc_data -> rtc_data
+    rtc_rodata -> rtc_data
+    rtc_bss -> rtc_bss
+
+[scheme:rtc]
+entries:
+    text -> rtc_text
+    data -> rtc_data
+    rodata -> rtc_data
+    bss -> rtc_bss
+    common -> rtc_bss
+
+[scheme:noflash]
+entries:
+    text -> iram0_text
+    rodata -> dram0_data
+
+[scheme:noflash_data]
+entries:
+    rodata -> dram0_data
+
+[scheme:noflash_text]
+entries:
+    text -> iram0_text