From: Szabolcs Nagy <szabolcs.nagy@arm.com>
Date: Thu, 7 Apr 2022 12:18:48 +0000 (+0100)
Subject: cheri: elf: elfptr_t l_map_start in link_map struct
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=15458dd00f538c02becb3ec01192adf0e4a58a9d;p=thirdparty%2Fglibc.git

cheri: elf: elfptr_t l_map_start in link_map struct

Use a capability for the load segment start that covers all load
segments so pointers can be derived from it.

It should have RX permission and a separate capability used for
writable pointers.
---

diff --git a/include/link.h b/include/link.h
index 0ac82d7c774..7632ae33d36 100644
--- a/include/link.h
+++ b/include/link.h
@@ -252,7 +252,8 @@ struct link_map
 
     /* Start and finish of memory map for this object.  l_map_start
        need not be the same as l_addr.  */
-    ElfW(Addr) l_map_start, l_map_end;
+    elfptr_t l_map_start;
+    ElfW(Addr) l_map_end;
     /* End of the executable part of the mapping.  */
     ElfW(Addr) l_text_end;