From 47793d6a29f63869e7dbc583576cb8bf351cd504 Mon Sep 17 00:00:00 2001
From: Dan Albert <danalbert@google.com>
Date: Thu, 21 Aug 2014 12:13:24 -0700
Subject: [PATCH] Remove _flush_cache(2) for mips64.

Also remove declaration.

The only user is compiler-rt, and they can replace that call with one to
syscall(2). compiler-rt doesn't currently build on mips64 anyway.

Bug: 11156955
Change-Id: Ieae0ba49c8e7aa50253401fc1d7c2d17bc867d39
---
 libc/SYSCALLS.TXT                        |  2 +-
 libc/arch-mips64/syscalls/_flush_cache.S | 27 ------------------------
 libc/include/sys/cachectl.h              |  1 -
 3 files changed, 1 insertion(+), 29 deletions(-)
 delete mode 100644 libc/arch-mips64/syscalls/_flush_cache.S

diff --git a/libc/SYSCALLS.TXT b/libc/SYSCALLS.TXT
index 38ae8310a..bfa13b701 100644
--- a/libc/SYSCALLS.TXT
+++ b/libc/SYSCALLS.TXT
@@ -315,7 +315,7 @@ int     __set_tls:__ARM_NR_set_tls(void*)                                 arm
 int     cacheflush:__ARM_NR_cacheflush(long start, long end, long flags)  arm
 
 # MIPS-specific
-int     _flush_cache:cacheflush(char* addr, const int nbytes, const int op) mips,mips64
+int     _flush_cache:cacheflush(char* addr, const int nbytes, const int op) mips
 int     __set_tls:set_thread_area(void*) mips,mips64
 
 # x86-specific
diff --git a/libc/arch-mips64/syscalls/_flush_cache.S b/libc/arch-mips64/syscalls/_flush_cache.S
deleted file mode 100644
index 997ccecb0..000000000
--- a/libc/arch-mips64/syscalls/_flush_cache.S
+++ /dev/null
@@ -1,27 +0,0 @@
-/* Generated by gensyscalls.py. Do not edit. */
-
-#include <private/bionic_asm.h>
-
-    .hidden __set_errno
-
-ENTRY(_flush_cache)
-    .set push
-    .set noreorder
-    li v0, __NR_cacheflush
-    syscall
-    bnez a3, 1f
-    move a0, v0
-    j ra
-    nop
-1:
-    move t0, ra
-    bal     2f
-    nop
-2:
-    .cpsetup ra, t1, 2b
-    LA t9,__set_errno
-    .cpreturn
-    j t9
-    move ra, t0
-    .set pop
-END(_flush_cache)
diff --git a/libc/include/sys/cachectl.h b/libc/include/sys/cachectl.h
index 57e6ae787..a302ff806 100644
--- a/libc/include/sys/cachectl.h
+++ b/libc/include/sys/cachectl.h
@@ -31,6 +31,5 @@
 #ifdef __mips__
 #include <asm/cachectl.h>
 extern int __cachectl (void *addr, __const int nbytes, __const int op);
-extern int _flush_cache (char *addr, __const int nbytes, __const int op);
 #endif
 #endif /* sys/cachectl.h */