ramconfig.ld: Update link script files to use GNSS RAM

Add new sections to use GNSS RAM into link script files.
SPRESENSE · Feb 2, 2024 · 1f9e9f0 · 1f9e9f0
1 parent 5315875
commit 1f9e9f0
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Showing 2 changed files with 88 additions and 2 deletions.
diff --git a/Arduino15/packages/SPRESENSE/hardware/spresense/1.0.0/variants/spresense/ramconfig-new.ld b/Arduino15/packages/SPRESENSE/hardware/spresense/1.0.0/variants/spresense/ramconfig-new.ld
@@ -21,6 +21,7 @@
 MEMORY
 {
     ram (rwx)  : ORIGIN = 0x0d000000, LENGTH = 1536K
+    gnssram (rwx) : ORIGIN = 0x09000000, LENGTH = 640K
 }
 
 OUTPUT_ARCH(arm)
@@ -29,6 +30,47 @@ EXTERN(_vectors)       /* Force the vectors to be included in the output */
 EXTERN(__stack)        /* Force the __stack to be included in the output */
 SECTIONS
 {
+    /* GNSS memory */
+
+    .gnssram.text : {
+        _sgnsstext = ABSOLUTE(.);
+
+        /* Possible to locate text of any object file.
+         * *libxxx.a:*.o(.text .text.*)
+         * *libxxx.a:*.o(.rodata .rodata.*)
+         */
+
+    } > gnssram
+
+    .gnssram.data . : ALIGN(8) {
+        /* Possible to locate data of any object file.
+         * *libxxx.a:*.o(.data .data.*)
+         */
+
+    } > gnssram
+
+    .gnssram.bss . (NOLOAD) : {
+        . = ALIGN(4);
+        _gnssramsbss = ABSOLUTE(.);
+
+        /* Possible to locate bss of any object file.
+         * *libxxx.a:*.o(.bss .bss.*)
+         * *libxxx.a:*.o(COMMON)
+         */
+
+        . = ALIGN(4);
+        _gnssramebss = ABSOLUTE(.);
+    } > gnssram
+
+    /* Whatever is left from the GNSS memory is used as a special heap. */
+
+    _sgnssheap = ABSOLUTE(.);
+    _egnssheap = ORIGIN(gnssram) + LENGTH(gnssram);
+
+    ASSERT(_sgnssheap < _egnssheap, "Error: Out of memory")
+
+    /* Application memory */
+
     .text : {
         _stext = ABSOLUTE(.);
         *(.vectors)
@@ -50,7 +92,8 @@ SECTIONS
 
     .init_section : {
         _sinit = ABSOLUTE(.);
-        KEEP(*(.init_array .init_array.*))
+        KEEP(*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
+        KEEP(*(.init_array .ctors))
         _einit = ABSOLUTE(.);
     } > ram
 

diff --git a/Arduino15/packages/SPRESENSE/hardware/spresense/1.0.0/variants/spresense/ramconfig.ld b/Arduino15/packages/SPRESENSE/hardware/spresense/1.0.0/variants/spresense/ramconfig.ld
@@ -21,6 +21,7 @@
 MEMORY
 {
     ram (rwx)  : ORIGIN = 0x0d000000, LENGTH = 1536K
+    gnssram (rwx) : ORIGIN = 0x09000000, LENGTH = 640K
 }
 
 OUTPUT_ARCH(arm)
@@ -29,6 +30,47 @@ EXTERN(_vectors)       /* Force the vectors to be included in the output */
 EXTERN(__stack)        /* Force the __stack to be included in the output */
 SECTIONS
 {
+    /* GNSS memory */
+
+    .gnssram.text : {
+        _sgnsstext = ABSOLUTE(.);
+
+        /* Possible to locate text of any object file.
+         * *libxxx.a:*.o(.text .text.*)
+         * *libxxx.a:*.o(.rodata .rodata.*)
+         */
+
+    } > gnssram
+
+    .gnssram.data . : ALIGN(8) {
+        /* Possible to locate data of any object file.
+         * *libxxx.a:*.o(.data .data.*)
+         */
+
+    } > gnssram
+
+    .gnssram.bss . (NOLOAD) : {
+        . = ALIGN(4);
+        _gnssramsbss = ABSOLUTE(.);
+
+        /* Possible to locate bss of any object file.
+         * *libxxx.a:*.o(.bss .bss.*)
+         * *libxxx.a:*.o(COMMON)
+         */
+
+        . = ALIGN(4);
+        _gnssramebss = ABSOLUTE(.);
+    } > gnssram
+
+    /* Whatever is left from the GNSS memory is used as a special heap. */
+
+    _sgnssheap = ABSOLUTE(.);
+    _egnssheap = ORIGIN(gnssram) + LENGTH(gnssram);
+
+    ASSERT(_sgnssheap < _egnssheap, "Error: Out of memory")
+
+    /* Application memory */
+
     .text : {
         _stext = ABSOLUTE(.);
         *(.vectors)
@@ -50,7 +92,8 @@ SECTIONS
 
     .init_section : {
         _sinit = ABSOLUTE(.);
-        KEEP(*(.init_array .init_array.*))
+        KEEP(*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
+        KEEP(*(.init_array .ctors))
         _einit = ABSOLUTE(.);
     } > ram