MIPS mmap_privanon in .S in case gcc learns how to 'bal'.

2012-03-14 08:24:04 -07:00 · 2012-03-14 08:24:04 -07:00 · 340c3963d8
commit 340c3963d8
parent ef15cf9847
1 changed files with 7 additions and 0 deletions
--- a/src/stub/src/mipsel.r3000-linux.elf-fold.S
+++ b/src/stub/src/mipsel.r3000-linux.elf-fold.S
@ -200,6 +200,13 @@ mprotect: .globl mprotect
 #define a4_sys 0x10
 #define a5_sys 0x14

+MAP_PRIVATE=  0x002
+MAP_ANONYMOUS=0x800  # not same as i386
+
+mmap_privanon: .globl mmap_privanon
+        ori a3,a3,MAP_PRIVATE|MAP_ANONYMOUS
+        li t0,-1  # fd
+        li t1,0   # offset
 mmap: .globl mmap
        addiu sp,sp,-sp_frame
        sw t0,a4_sys(sp)