adds some hooks for SMT startup

2025-11-29 12:49:50 +01:00
parent 5f220ff09b
commit c8ea882b3e
5 changed files with 51 additions and 356 deletions
--- a/env/riscv_vp/rom.lds
+++ b/env/riscv_vp/rom.lds
@@ -4,174 +4,9 @@ ENTRY( _start )

 INCLUDE memory_map.ld

-PHDRS
-{
-  rom PT_LOAD;
-  ram_init PT_LOAD;
-  ram PT_NULL;
-  dram PT_NULL;
-}
+REGION_ALIAS("REGION_TEXT", rom);
+REGION_ALIAS("REGION_RODATA", rom);
+REGION_ALIAS("REGION_DATA", ram);
+REGION_ALIAS("REGION_BSS", ram);

-SECTIONS
-{
-  __stack_size = DEFINED(__stack_size) ? __stack_size : 2K;
-
-  .init ORIGIN(rom)        :
-  {
-    KEEP (*(SORT_NONE(.init)))
-  } >rom AT>rom :rom
-
-  .text           :
-  {
-    *(.text.unlikely .text.unlikely.*)
-    *(.text.startup .text.startup.*)
-    *(.text .text.*)
-    *(.gnu.linkonce.t.*)
-  } >rom AT>rom :rom
-
-  .fini           :
-  {
-    KEEP (*(SORT_NONE(.fini)))
-  } >rom AT>rom :rom
-
-  PROVIDE (__etext = .);
-  PROVIDE (_etext = .);
-  PROVIDE (etext = .);
-
-  .rodata         :
-  {
-    *(.rdata)
-    *(.rodata .rodata.*)
-    *(.gnu.linkonce.r.*)
-  } >rom AT>rom :rom
-
-  . = ALIGN(4);
-
-  .preinit_array  :
-  {
-    PROVIDE_HIDDEN (__preinit_array_start = .);
-    KEEP (*(.preinit_array))
-    PROVIDE_HIDDEN (__preinit_array_end = .);
-  } >rom AT>rom :rom
-
-  .init_array     :
-  {
-    PROVIDE_HIDDEN (__init_array_start = .);
-    KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
-    KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .ctors))
-    PROVIDE_HIDDEN (__init_array_end = .);
-  } >rom AT>rom :rom
-
-  .fini_array     :
-  {
-    PROVIDE_HIDDEN (__fini_array_start = .);
-    KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))
-    KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .dtors))
-    PROVIDE_HIDDEN (__fini_array_end = .);
-  } >rom AT>rom :rom
-
-  .ctors          :
-  {
-    /* gcc uses crtbegin.o to find the start of
-       the constructors, so we make sure it is
-       first.  Because this is a wildcard, it
-       doesn't matter if the user does not
-       actually link against crtbegin.o; the
-       linker won't look for a file to match a
-       wildcard.  The wildcard also means that it
-       doesn't matter which directory crtbegin.o
-       is in.  */
-    KEEP (*crtbegin.o(.ctors))
-    KEEP (*crtbegin?.o(.ctors))
-    /* We don't want to include the .ctor section from
-       the crtend.o file until after the sorted ctors.
-       The .ctor section from the crtend file contains the
-       end of ctors marker and it must be last */
-    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
-    KEEP (*(SORT(.ctors.*)))
-    KEEP (*(.ctors))
-  } >rom AT>rom :rom
-
-  .dtors          :
-  {
-    KEEP (*crtbegin.o(.dtors))
-    KEEP (*crtbegin?.o(.dtors))
-    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
-    KEEP (*(SORT(.dtors.*)))
-    KEEP (*(.dtors))
-  } >rom AT>rom :rom
-
-  .dummy          :
-  {
-	*(.comment.*)
-
-  }
-  .lalign         :
-  {
-    . = ALIGN(4);
-    PROVIDE( _data_lma = . );
-  } >rom AT>rom :rom
-
-  .dalign         :
-  {
-    . = ALIGN(4);
-    PROVIDE( _data = . );
-  } >ram AT>rom :ram_init
-
-  .data          :
-  {
-    __DATA_BEGIN__ = .;
-    *(.data .data.*)
-    *(.gnu.linkonce.d.*)
-  } >ram AT>rom :ram_init
-
-  .sdata          :
-  {
-    __SDATA_BEGIN__ = .;
-    *(.sdata .sdata.*)
-    *(.gnu.linkonce.s.*)
-  } >ram AT>rom :ram_init
-
-  .srodata        :
-  {
-    *(.srodata.cst16)
-    *(.srodata.cst8)
-    *(.srodata.cst4)
-    *(.srodata.cst2)
-    *(.srodata .srodata.*)
-  } >ram AT>rom :ram_init
-
-  . = ALIGN(4);
-  PROVIDE( _edata = . );
-  PROVIDE( edata = . );
-
-  PROVIDE( _fbss = . );
-  PROVIDE( __bss_start = . );
-  .bss            :
-  {
-    *(.sbss*)
-    *(.gnu.linkonce.sb.*)
-    *(.bss .bss.*)
-    *(.gnu.linkonce.b.*)
-    *(COMMON)
-    . = ALIGN(4);
-  } >ram AT>ram :ram
-
-  . = ALIGN(8);
-  __BSS_END__ = .;
-  __global_pointer$ = MIN(__SDATA_BEGIN__ + 0x800,  MAX(__DATA_BEGIN__ + 0x800, __BSS_END__ - 0x800));
-  PROVIDE( _end = . );
-  PROVIDE( end = . );
-
-  .stack ORIGIN(ram) + LENGTH(ram) - __stack_size :
-  {
-    PROVIDE( _heap_end = . );
-    . = __stack_size;
-    PROVIDE( _sp = . );
-  } >ram AT>ram :ram
-
-
-  
-  PROVIDE( tohost = . );
-  PROVIDE( fromhost = . + 8 );
-}
+INCLUDE sections.ld