svn commit: r358304 - head/stand/powerpc/ofw

[Brandon Bergren]

Author: bdragon
Date: Tue Feb 25 00:45:09 2020
New Revision: 358304
URL: https://svnweb.freebsd.org/changeset/base/358304

Log:
  [PowerPC] Fix LLD10 linking of ofw loader on ppc
  
  Before this change, LLD10 was creating several extra PT_LOAD sections,
  which OFW does not understand.
  
  Like we do for the kernel already, specify the program headers manually.
  
  Additionally, to work around a crash in our base ld.bfd, we need to
  actually assign something to the output section. LLD does not need this.
  
  One side effect of this change is the removal of the GNU_STACK header.
  This is more correct, since we are using a statically-allocated stack and
  RWX mappings across the board this early in boot.
  
  Reviewed by:	jhibbits, Fangrui Song <i at maskray.me>
  Sponsored by:	Tag1 Consulting, Inc.
  Differential Revision:	https://reviews.freebsd.org/D23778

Modified:
  head/stand/powerpc/ofw/ldscript.powerpc

Modified: head/stand/powerpc/ofw/ldscript.powerpc
==============================================================================
--- head/stand/powerpc/ofw/ldscript.powerpc	Tue Feb 25 00:37:13 2020	(r358303)
+++ head/stand/powerpc/ofw/ldscript.powerpc	Tue Feb 25 00:45:09 2020	(r358304)
@@ -6,11 +6,15 @@ OUTPUT_ARCH(powerpc:common)
 ENTRY(_start)
 SEARCH_DIR(/usr/lib);
 PROVIDE (__stack = 0);
+PHDRS
+{
+	text PT_LOAD;
+}
 SECTIONS
 {
   /* Read-only sections, merged into text segment: */
   . = 0x02c00000 + SIZEOF_HEADERS;
-  .interp     : { *(.interp) 	}
+  .interp     : { *(.interp) 	} :text
   .hash          : { *(.hash)		}
   .dynsym        : { *(.dynsym)		}
   .dynstr        : { *(.dynstr)		}