Move init regs to separate section

kuznia-rdzeni · Aug 9, 2024 · ab57393 · ab57393
1 parent bf8b0e4
commit ab57393
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Showing 4 changed files with 13 additions and 8 deletions.
diff --git a/test/asm/init_regs.s b/test/asm/init_regs.s
@@ -35,6 +35,7 @@
 .endm
 
 .macro INIT_REGS_ALLOCATION
-.org 0x100
+.section .init_regs, "a", @nobits
 .skip 0x80
+.previous
 .endm
diff --git a/test/asm/interrupt.asm b/test/asm/interrupt.asm
@@ -101,5 +101,4 @@ fail:
     j int_handler
     li x31, 0xae  # should never happen
 
-.bss
-    INIT_REGS_ALLOCATION
+INIT_REGS_ALLOCATION
diff --git a/test/asm/link.ld b/test/asm/link.ld
@@ -1,11 +1,17 @@
-OUTPUT_ARCH( "riscv" )
+OTPUT_ARCH( "riscv" )
 
 start = 0;
 
 SECTIONS
 {
   .text : { *(.text) }
   . = 0x100000000; /* start from 2**32 - trick to emulate Harvard architecture (memory addresses will start from 0) */
-  .data : { *(.data) *(.bss) }
-  _end = .;
+  .data : {
+      *(.data)
+      *(.bss)
+
+      . =  _end_init_regs > . ? 0x1000 : .;  /* skip .init_regs origin allocation if not used */
+      *(.init_regs)
+      _end_init_regs = .;
+   }
 }
diff --git a/test/asm/wfi_int.asm b/test/asm/wfi_int.asm
@@ -29,5 +29,4 @@ skip:
 .org 0x100
     j handler
 
-.data
-    INIT_REGS_ALLOCATION
+INIT_REGS_ALLOCATION