powerpc: Merge enough to start building in arch/powerpc.

This creates the directory structure under arch/powerpc and a bunch
of Kconfig files.  It does a first-cut merge of arch/powerpc/mm,
arch/powerpc/lib and arch/powerpc/platforms/powermac.  This is enough
to build a 32-bit powermac kernel with ARCH=powerpc.

For now we are getting some unmerged files from arch/ppc/kernel and
arch/ppc/syslib, or arch/ppc64/kernel.  This makes some minor changes
to files in those directories and files outside arch/powerpc.

The boot directory is still not merged.  That's going to be interesting.

Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 174 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/vmlinux.lds b/arch/powerpc/kernel/vmlinux.lds
new file mode 100644
index 00000000000..d62c288a81d
--- /dev/null
+++ b/arch/powerpc/kernel/vmlinux.lds
@@ -0,0 +1,174 @@
+/* Align . to a 8 byte boundary equals to maximum function alignment. */
+/* sched.text is aling to function alignment to secure we have same
+ * address even at second ld pass when generating System.map */
+/* spinlock.text is aling to function alignment to secure we have same
+ * address even at second ld pass when generating System.map */
+  /* DWARF debug sections.
+		Symbols in the DWARF debugging sections are relative to
+		the beginning of the section so we begin them at 0.  */
+  /* Stabs debugging sections.  */
+OUTPUT_ARCH(powerpc:common)
+jiffies = jiffies_64 + 4;
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  . = + SIZEOF_HEADERS;
+  .interp : { *(.interp) }
+  .hash : { *(.hash) }
+  .dynsym : { *(.dynsym) }
+  .dynstr : { *(.dynstr) }
+  .rel.text : { *(.rel.text) }
+  .rela.text : { *(.rela.text) }
+  .rel.data : { *(.rel.data) }
+  .rela.data : { *(.rela.data) }
+  .rel.rodata : { *(.rel.rodata) }
+  .rela.rodata : { *(.rela.rodata) }
+  .rel.got : { *(.rel.got) }
+  .rela.got : { *(.rela.got) }
+  .rel.ctors : { *(.rel.ctors) }
+  .rela.ctors : { *(.rela.ctors) }
+  .rel.dtors : { *(.rel.dtors) }
+  .rela.dtors : { *(.rela.dtors) }
+  .rel.bss : { *(.rel.bss) }
+  .rela.bss : { *(.rela.bss) }
+  .rel.plt : { *(.rel.plt) }
+  .rela.plt : { *(.rela.plt) }
+/*  .init          : { *(.init)	} =0*/
+  .plt : { *(.plt) }
+  .text :
+  {
+    *(.text)
+    . = ALIGN(8); __sched_text_start = .; *(.sched.text) __sched_text_end = .;
+    . = ALIGN(8); __lock_text_start = .; *(.spinlock.text) __lock_text_end = .;
+    *(.fixup)
+    *(.got1)
+    __got2_start = .;
+    *(.got2)
+    __got2_end = .;
+  }
+  _etext = .;
+  PROVIDE (etext = .);
+  .rodata : AT(ADDR(.rodata) - 0) { *(.rodata) *(.rodata.*) *(__vermagic) } .rodata1 : AT(ADDR(.rodata1) - 0) { *(.rodata1) } .pci_fixup : AT(ADDR(.pci_fixup) - 0) { __start_pci_fixups_early = .; *(.pci_fixup_early) __end_pci_fixups_early = .; __start_pci_fixups_header = .; *(.pci_fixup_header) __end_pci_fixups_header = .; __start_pci_fixups_final = .; *(.pci_fixup_final) __end_pci_fixups_final = .; __start_pci_fixups_enable = .; *(.pci_fixup_enable) __end_pci_fixups_enable = .; } __ksymtab : AT(ADDR(__ksymtab) - 0) { __start___ksymtab = .; *(__ksymtab) __stop___ksymtab = .; } __ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - 0) { __start___ksymtab_gpl = .; *(__ksymtab_gpl) __stop___ksymtab_gpl = .; } __kcrctab : AT(ADDR(__kcrctab) - 0) { __start___kcrctab = .; *(__kcrctab) __stop___kcrctab = .; } __kcrctab_gpl : AT(ADDR(__kcrctab_gpl) - 0) { __start___kcrctab_gpl = .; *(__kcrctab_gpl) __stop___kcrctab_gpl = .; } __ksymtab_strings : AT(ADDR(__ksymtab_strings) - 0) { *(__ksymtab_strings) } __param : AT(ADDR(__param) - 0) { __start___param = .; *(__param) __stop___param = .; }
+  .fini : { *(.fini) } =0
+  .ctors : { *(.ctors) }
+  .dtors : { *(.dtors) }
+  .fixup : { *(.fixup) }
+ __ex_table : {
+  __start___ex_table = .;
+  *(__ex_table)
+  __stop___ex_table = .;
+ }
+ __bug_table : {
+  __start___bug_table = .;
+  *(__bug_table)
+  __stop___bug_table = .;
+ }
+  /* Read-write section, merged into data segment: */
+  . = ALIGN(4096);
+  .data :
+  {
+    *(.data)
+    *(.data1)
+    *(.sdata)
+    *(.sdata2)
+    *(.got.plt) *(.got)
+    *(.dynamic)
+    CONSTRUCTORS
+  }
+
+  . = ALIGN(4096);
+  __nosave_begin = .;
+  .data_nosave : { *(.data.nosave) }
+  . = ALIGN(4096);
+  __nosave_end = .;
+
+  . = ALIGN(32);
+  .data.cacheline_aligned : { *(.data.cacheline_aligned) }
+
+  _edata = .;
+  PROVIDE (edata = .);
+
+  . = ALIGN(8192);
+  .data.init_task : { *(.data.init_task) }
+
+  . = ALIGN(4096);
+  __init_begin = .;
+  .init.text : {
+ _sinittext = .;
+ *(.init.text)
+ _einittext = .;
+  }
+  /* .exit.text is discarded at runtime, not link time,
+     to deal with references from __bug_table */
+  .exit.text : { *(.exit.text) }
+  .init.data : {
+    *(.init.data);
+    __vtop_table_begin = .;
+    *(.vtop_fixup);
+    __vtop_table_end = .;
+    __ptov_table_begin = .;
+    *(.ptov_fixup);
+    __ptov_table_end = .;
+  }
+  . = ALIGN(16);
+  __setup_start = .;
+  .init.setup : { *(.init.setup) }
+  __setup_end = .;
+  __initcall_start = .;
+  .initcall.init : {
+ *(.initcall1.init)
+ *(.initcall2.init)
+ *(.initcall3.init)
+ *(.initcall4.init)
+ *(.initcall5.init)
+ *(.initcall6.init)
+ *(.initcall7.init)
+  }
+  __initcall_end = .;
+
+  __con_initcall_start = .;
+  .con_initcall.init : { *(.con_initcall.init) }
+  __con_initcall_end = .;
+
+  .security_initcall.init : AT(ADDR(.security_initcall.init) - 0) { __security_initcall_start = .; *(.security_initcall.init) __security_initcall_end = .; }
+
+  __start___ftr_fixup = .;
+  __ftr_fixup : { *(__ftr_fixup) }
+  __stop___ftr_fixup = .;
+
+  . = ALIGN(32);
+  __per_cpu_start = .;
+  .data.percpu : { *(.data.percpu) }
+  __per_cpu_end = .;
+
+  . = ALIGN(4096);
+  __initramfs_start = .;
+  .init.ramfs : { *(.init.ramfs) }
+  __initramfs_end = .;
+
+  . = ALIGN(4096);
+  __init_end = .;
+
+  . = ALIGN(4096);
+  _sextratext = .;
+  _eextratext = .;
+
+  __bss_start = .;
+  .bss :
+  {
+   *(.sbss) *(.scommon)
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+  }
+  __bss_stop = .;
+
+  _end = . ;
+  PROVIDE (end = .);
+
+  /* Sections to be discarded. */
+  /DISCARD/ : {
+    *(.exitcall.exit)
+    *(.exit.data)
+  }
+}