Sync betaflight to Gitea

2026-08-03 16:37:10 +08:00
commit ad3163cf91
4712 changed files with 3301380 additions and 0 deletions
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+/*
+ * Linker script for the Betaflight N6570-DK FSBL stub.
+ *
+ * Boot ROM loads the signed FSBL into AXISRAM2 secure starting at 0x34180400
+ * (the 0x400 offset matches `STM32_SigningTool_CLI -align`). All sections
+ * live in this single region — the boot ROM populates .data alongside
+ * .text during load, so .data LMA == VMA and the startup .data copy is a
+ * no-op. 256 KiB sits within the system DFU FSBL slot's payload cap and
+ * well below AXISRAM2's 1 MiB limit.
+ */
+
+ENTRY(Reset_Handler)
+
+_Min_Stack_Size = 0x1000;
+
+MEMORY
+{
+    RAM (rwx) : ORIGIN = 0x34180400, LENGTH = 256K
+}
+
+_estack = ORIGIN(RAM) + LENGTH(RAM);
+_sstack = _estack - _Min_Stack_Size;
+
+SECTIONS
+{
+    .isr_vector :
+    {
+        . = ALIGN(4);
+        KEEP(*(.isr_vector))
+        . = ALIGN(4);
+    } > RAM
+
+    .text :
+    {
+        . = ALIGN(4);
+        *(.text)
+        *(.text.*)
+        *(.glue_7)
+        *(.glue_7t)
+        *(.eh_frame)
+        . = ALIGN(4);
+    } > RAM
+
+    .rodata :
+    {
+        . = ALIGN(4);
+        *(.rodata)
+        *(.rodata.*)
+        . = ALIGN(4);
+    } > RAM
+
+    .ARM.extab :
+    {
+        *(.ARM.extab* .gnu.linkonce.armextab.*)
+    } > RAM
+
+    .ARM :
+    {
+        __exidx_start = .;
+        *(.ARM.exidx*)
+        __exidx_end = .;
+    } > RAM
+
+    _sidata = LOADADDR(.data);
+
+    .data :
+    {
+        . = ALIGN(4);
+        _sdata = .;
+        *(.data)
+        *(.data.*)
+        . = ALIGN(4);
+        _edata = .;
+    } > RAM
+
+    .bss :
+    {
+        . = ALIGN(4);
+        _sbss = .;
+        __bss_start__ = .;
+        *(.bss)
+        *(.bss.*)
+        *(COMMON)
+        . = ALIGN(4);
+        _ebss = .;
+        __bss_end__ = .;
+    } > RAM
+
+    /* Reserve stack at the top of RAM. Linker fails the build if we
+     * overflow into .bss. */
+    ._stack_reservation :
+    {
+        . = ALIGN(8);
+        . = . + _Min_Stack_Size;
+        . = ALIGN(8);
+    } > RAM
+
+    /DISCARD/ :
+    {
+        *(.ARM.attributes)
+        *(.comment)
+    }
+}