Changeset ae84e38 in mainline for uspace/lib/c/arch/sparc64/src/entry.S

Timestamp:

2018-04-10T18:51:14Z (7 years ago)

Author:

Jiří Zárevúcky <jiri.zarevucky@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

ad0d1f5

Parents:

20287223

Message:

Remove _gp from sparc linker script.

The global pointer is set by each PIC function individually,
so the value loaded to %l7 here is never used.
Especially if libc is shared library, since then the GOT
of main has a different address than the GOT of the main
executable (if there even is one).

File:

• uspace/lib/c/arch/sparc64/src/entry.S (modified) (1 diff)

uspace/lib/c/arch/sparc64/src/entry.S

@@ -47 +47 @@
 
         # Pass pcb_ptr as the first argument to __main()
+        call __main
         mov %i1, %o0
-        sethi %hi(_gp), %l7
-        call __main
-        or %l7, %lo(_gp), %l7