keyboards/annepro2/ld: Add per-variant linker scripts (#24999)

C18 has an MCU with 16K SRAM, up from C15's 8K.

Split the linker script into C15 and C18 variants to make use of the
larger RAM capacity of C18.

4 files changed, 94 insertions, 2 deletions

diff --git a/keyboards/annepro2/c15/rules.mk b/keyboards/annepro2/c15/rules.mk
index f35d9002ef..cd056527b7 100644
--- a/keyboards/annepro2/c15/rules.mk
+++ b/keyboards/annepro2/c15/rules.mk
@@ -4,7 +4,7 @@ ARMV = 6
 USE_FPU = no
 MCU_FAMILY = HT32
 MCU_SERIES = HT32F523xx
-MCU_LDSCRIPT = HT32F52342_ANNEPRO2
+MCU_LDSCRIPT = HT32F52342_ANNEPRO2_C15
 MCU_STARTUP = ht32f523xx
 
 BOARD = ANNEPRO2_C15
diff --git a/keyboards/annepro2/c18/rules.mk b/keyboards/annepro2/c18/rules.mk
index b310454c5d..414e3f855d 100644
--- a/keyboards/annepro2/c18/rules.mk
+++ b/keyboards/annepro2/c18/rules.mk
@@ -4,7 +4,7 @@ ARMV = 6
 USE_FPU = no
 MCU_FAMILY = HT32
 MCU_SERIES = HT32F523xx
-MCU_LDSCRIPT = HT32F52342_ANNEPRO2
+MCU_LDSCRIPT = HT32F52352_ANNEPRO2_C18
 MCU_STARTUP = ht32f523xx
 
 BOARD = ANNEPRO2_C18
diff --git a/keyboards/annepro2/ld/HT32F52342_ANNEPRO2.ld b/keyboards/annepro2/ld/HT32F52342_ANNEPRO2_C15.ld
index 544400b948..544400b948 100644
--- a/keyboards/annepro2/ld/HT32F52342_ANNEPRO2.ld
+++ b/keyboards/annepro2/ld/HT32F52342_ANNEPRO2_C15.ld
diff --git a/keyboards/annepro2/ld/HT32F52352_ANNEPRO2_C18.ld b/keyboards/annepro2/ld/HT32F52352_ANNEPRO2_C18.ld
new file mode 100644
index 0000000000..0ac02d6c89
--- /dev/null
+++ b/keyboards/annepro2/ld/HT32F52352_ANNEPRO2_C18.ld
@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2013-2016 Fabio UJonathan A. Kollaschtzig, http://fabioutzig.com
+ *           (c) 2020 Yaotian Feng (Codetector) <codetector@codetector.cn>
+ *           (c) 2025 Michał Kopeć <michal@nozomi.space>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/*
+ * HT32F52342 w/ Anne Pro 2 bootloader memory setup.
+ */
+MEMORY {
+    flash0   : org = 0x00004000, len = 64k - 16k       /* firmware */
+    flash1   : org = 0x00000000, len = 0
+    flash2   : org = 0x00000000, len = 0
+    flash3   : org = 0x00000000, len = 0
+    flash4   : org = 0x00000000, len = 0
+    flash5   : org = 0x00000000, len = 0
+    flash6   : org = 0x00000000, len = 0
+    flash7   : org = 0x00000000, len = 0
+    ram0     : org = 0x20000000, len = 16k             /* RAM */
+    ram1     : org = 0x00000000, len = 0
+    ram2     : org = 0x00000000, len = 0
+    ram3     : org = 0x00000000, len = 0
+    ram4     : org = 0x00000000, len = 0
+    ram5     : org = 0x00000000, len = 0
+    ram6     : org = 0x00000000, len = 0
+    ram7     : org = 0x00000000, len = 0
+}
+
+/* For each data/text section two region are defined, a virtual region
+   and a load region (_LMA suffix).*/
+
+/* Flash region to be used for exception vectors.*/
+REGION_ALIAS("VECTORS_FLASH", flash0);
+REGION_ALIAS("VECTORS_FLASH_LMA", flash0);
+
+/* Flash region to be used for constructors and destructors.*/
+REGION_ALIAS("XTORS_FLASH", flash0);
+REGION_ALIAS("XTORS_FLASH_LMA", flash0);
+
+/* Flash region to be used for code text.*/
+REGION_ALIAS("TEXT_FLASH", flash0);
+REGION_ALIAS("TEXT_FLASH_LMA", flash0);
+
+/* Flash region to be used for read only data.*/
+REGION_ALIAS("RODATA_FLASH", flash0);
+REGION_ALIAS("RODATA_FLASH_LMA", flash0);
+
+/* Flash region to be used for various.*/
+REGION_ALIAS("VARIOUS_FLASH", flash0);
+REGION_ALIAS("VARIOUS_FLASH_LMA", flash0);
+
+/* Flash region to be used for RAM(n) initialization data.*/
+REGION_ALIAS("RAM_INIT_FLASH_LMA", flash0);
+
+/* RAM region to be used for Main stack. This stack accommodates the processing
+   of all exceptions and interrupts.*/
+REGION_ALIAS("MAIN_STACK_RAM", ram0);
+
+/* RAM region to be used for the process stack. This is the stack used by
+   the main() function.*/
+REGION_ALIAS("PROCESS_STACK_RAM", ram0);
+
+/* RAM region to be used for data segment.*/
+REGION_ALIAS("DATA_RAM", ram0);
+REGION_ALIAS("DATA_RAM_LMA", flash0);
+
+/* RAM region to be used for BSS segment.*/
+REGION_ALIAS("BSS_RAM", ram0);
+
+/* RAM region to be used for the default heap.*/
+REGION_ALIAS("HEAP_RAM", ram0);
+
+/* Generic rules inclusion.*/
+INCLUDE rules.ld