Usermode - More ARM stuff

diff --git a/Usermode/Libraries/acess.ld_src/acess_armv7.ld.h b/Usermode/Libraries/acess.ld_src/acess_armv7.ld.h
new file mode 100644 (file)
index 0000000..c338f46
--- /dev/null
+++ b/Usermode/Libraries/acess.ld_src/acess_armv7.ld.h
@@ -0,0 +1,235 @@
+/* Script for -z combreloc: combine and sort reloc sections */
+OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm",
+             "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SEARCH_DIR(__LIBDIR)
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  PROVIDE (__executable_start = SEGMENT_START("text-segment", 0x8000)); . = SEGMENT_START("text-segment", 0x8000);
+  .interp         : { *(.interp) }
+  .note.gnu.build-id : { *(.note.gnu.build-id) }
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+  .gnu.version_d  : { *(.gnu.version_d) }
+  .gnu.version_r  : { *(.gnu.version_r) }
+  .rel.dyn        :
+    {
+      *(.rel.init)
+      *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*)
+      *(.rel.fini)
+      *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*)
+      *(.rel.data.rel.ro* .rel.gnu.linkonce.d.rel.ro.*)
+      *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*)
+      *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*)
+      *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*)
+      *(.rel.ctors)
+      *(.rel.dtors)
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+      PROVIDE_HIDDEN (__rel_iplt_start = .);
+      *(.rel.iplt)
+      PROVIDE_HIDDEN (__rel_iplt_end = .);
+      PROVIDE_HIDDEN (__rela_iplt_start = .);
+      PROVIDE_HIDDEN (__rela_iplt_end = .);
+    }
+  .rela.dyn       :
+    {
+      *(.rela.init)
+      *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*)
+      *(.rela.fini)
+      *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*)
+      *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*)
+      *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*)
+      *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*)
+      *(.rela.ctors)
+      *(.rela.dtors)
+      *(.rela.got)
+      *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*)
+      PROVIDE_HIDDEN (__rel_iplt_start = .);
+      PROVIDE_HIDDEN (__rel_iplt_end = .);
+      PROVIDE_HIDDEN (__rela_iplt_start = .);
+      *(.rela.iplt)
+      PROVIDE_HIDDEN (__rela_iplt_end = .);
+    }
+  .rel.plt        :
+    {
+      *(.rel.plt)
+    }
+  .rela.plt       :
+    {
+      *(.rela.plt)
+    }
+  .init           :
+  {
+    KEEP (*(.init))
+  } =0
+  .plt            : { *(.plt) }
+  .iplt           : { *(.iplt) }
+  .text           :
+  {
+    *(.text.unlikely .text.*_unlikely)
+    *(.text.exit .text.exit.*)
+    *(.text.startup .text.startup.*)
+    *(.text.hot .text.hot.*)
+    *(.text .stub .text.* .gnu.linkonce.t.*)
+    /* .gnu.warning sections are handled specially by elf32.em.  */
+    *(.gnu.warning)
+    *(.glue_7t) *(.glue_7) *(.vfp11_veneer) *(.v4_bx)
+  } =0
+  .fini           :
+  {
+    KEEP (*(.fini))
+  } =0
+  PROVIDE (__etext = .);
+  PROVIDE (_etext = .);
+  PROVIDE (etext = .);
+  .rodata         : { *(.rodata .rodata.* .gnu.linkonce.r.*) }
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+  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) }
+   PROVIDE_HIDDEN (__exidx_start = .);
+  .ARM.exidx   : { *(.ARM.exidx* .gnu.linkonce.armexidx.*) }
+   PROVIDE_HIDDEN (__exidx_end = .);
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+  .eh_frame       : ONLY_IF_RO { KEEP (*(.eh_frame)) }
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+     the same address within the page on the next page up.  */
+  . = ALIGN(CONSTANT (MAXPAGESIZE)) + (. & (CONSTANT (MAXPAGESIZE) - 1));
+  /* Exception handling  */
+  .eh_frame       : ONLY_IF_RW { KEEP (*(.eh_frame)) }
+  .gcc_except_table   : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) }
+  /* Thread Local Storage sections  */
+  .tdata         : { *(.tdata .tdata.* .gnu.linkonce.td.*) }
+  .tbss                  : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) }
+  .preinit_array     :
+  {
+    PROVIDE_HIDDEN (__preinit_array_start = .);
+    KEEP (*(.preinit_array))
+    PROVIDE_HIDDEN (__preinit_array_end = .);
+  }
+  .init_array     :
+  {
+    PROVIDE_HIDDEN (__init_array_start = .);
+    KEEP (*(SORT(.init_array.*)))
+    KEEP (*(.init_array))
+    PROVIDE_HIDDEN (__init_array_end = .);
+  }
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+  {
+    PROVIDE_HIDDEN (__fini_array_start = .);
+    KEEP (*(SORT(.fini_array.*)))
+    KEEP (*(.fini_array))
+    PROVIDE_HIDDEN (__fini_array_end = .);
+  }
+  .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))
+  }
+  .dtors          :
+  {
+    KEEP (*crtbegin.o(.dtors))
+    KEEP (*crtbegin?.o(.dtors))
+    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
+    KEEP (*(SORT(.dtors.*)))
+    KEEP (*(.dtors))
+  }
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+      _end.  Align after .bss to ensure correct alignment even if the
+      .bss section disappears because there are no input sections.
+      FIXME: Why do we need it? When there is no .bss section, we don't
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+  . = ALIGN(32 / 8);
+  . = ALIGN(32 / 8);
+  __end__ = . ;
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+  /* Stabs debugging sections.  */
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+  .stab.indexstr 0 : { *(.stab.indexstr) }
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+  /* DWARF debug sections.
+     Symbols in the DWARF debugging sections are relative to the beginning
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+  /* DWARF 1 */
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+  /* GNU DWARF 1 extensions */
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+  /* DWARF 2 */
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+  .debug_str      0 : { *(.debug_str .zdebug_str) }
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+  /* SGI/MIPS DWARF 2 extensions */
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+  .debug_funcnames 0 : { *(.debug_funcnames .zdebug_funcnames) }
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+    .stack         0x80000 :
+  {
+    _stack = .;
+    *(.stack)
+  }
+  .ARM.attributes 0 : { KEEP (*(.ARM.attributes)) KEEP (*(.gnu.attributes)) }
+  .note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) }
+  /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) }
+}
+
+

diff --git a/Usermode/Libraries/crt0.o_src/crt0.armv7.S b/Usermode/Libraries/crt0.o_src/crt0.armv7.S
new file mode 100644 (file)
index 0000000..77b9c2d
--- /dev/null
+++ b/Usermode/Libraries/crt0.o_src/crt0.armv7.S
@@ -0,0 +1,24 @@
+@
+@ Acess2
+@ C Runtime 0
+@ - crt0.arm7.asm
+
+.globl start
+start:
+       bl main
+       push {r0}
+
+       ldr r0, = _crt0_exit_handler
+       ldr r0, [r0]
+       tst r0, r0
+       blxne r0
+
+       pop {r0}        
+
+       bl _exit
+       b .     @ This should never be reached
+
+.section .bss
+.globl _crt0_exit_handler
+_crt0_exit_handler:
+       .long   0