This is the mail archive of the java-patches@gcc.gnu.org mailing list for the Java project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: [patch] libffi EABI sys_cacheflush

From: David Daney <ddaney at avtrex dot com>
To: Steven Newbury <s_j_newbury at yahoo dot co dot uk>
Cc: java-patches at gcc dot gnu dot org
Date: Sat, 04 Aug 2007 09:38:22 -0700
Subject: Re: [patch] libffi EABI sys_cacheflush
References: <463939.53882.qm@web25008.mail.ukl.yahoo.com>

Steven Newbury wrote:

The existing code in FFI_INIT_TRAMPOLINE calls sys_cacheflush using only the
OABI syscall interface ie. the syscall number is encoded in the swi
instruction.
This patch passes the syscall number in r7 and calls "swi 0" as is needed by
the EABI Linux syscall ABI.
2007-08-03 Steven Newbury <s_j_newbury@yahoo.co.uk>

* src/arm/ffi.c (FFI_INIT_TRAMPOLINE): Use EABI syscall ABI for sys_cacheflush.

An alternative would be to call the __clear_cache() function provided by libgcc, or even better implement __builtin___clear_cache for arm and use that.

David Daney

Follow-Ups:
- Re: [patch] libffi EABI sys_cacheflush
  - From: Steven Newbury
- Re: [patch] libffi EABI sys_cacheflush
  - From: Steven Newbury

References:
- [patch] libffi EABI sys_cacheflush
  - From: Steven Newbury

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]