From: Saul Wold <sgw@linux.intel.com>
To: Phil Staub <Phil.Staub@windriver.com>
Cc: openembedded-core@lists.openembedded.org
Subject: Re: [PATCH] mips: Fix libaio system call interface
Date: Tue, 29 Jan 2013 20:43:05 -0800 [thread overview]
Message-ID: <5108A4D9.6010702@linux.intel.com> (raw)
In-Reply-To: <1359487681-9335-1-git-send-email-Phil.Staub@windriver.com>
On 01/29/2013 11:28 AM, Phil Staub wrote:
> The io_syscallX wrappers in syscall-mips.h discard error return status
> by overwriting the value returned in v0 from the system call with -1.
>
> Modify this behavior by returning the negative of the return value on
> error (as identified by a3 != 0). This convention is consistent with
> the behavior observed in syscall-ppc.h.
>
> For a description of the MIPS system call interface, see:
>
> http://www.linux-mips.org/wiki/Syscall
>
> Signed-off-by: Phil Staub <Phil.Staub@windriver.com>
> ---
> .../libaio/libaio_fix_for_mips_syscall.patch | 57 ++++++++++++++++++++
> meta/recipes-extended/libaio/libaio_0.3.109.bb | 6 ++-
> 2 files changed, 61 insertions(+), 2 deletions(-)
> create mode 100644 meta/recipes-extended/libaio/libaio/libaio_fix_for_mips_syscall.patch
>
> diff --git a/meta/recipes-extended/libaio/libaio/libaio_fix_for_mips_syscall.patch b/meta/recipes-extended/libaio/libaio/libaio_fix_for_mips_syscall.patch
> new file mode 100644
> index 0000000..0408865
> --- /dev/null
> +++ b/meta/recipes-extended/libaio/libaio/libaio_fix_for_mips_syscall.patch
> @@ -0,0 +1,57 @@
> +diff -urp libaio-0.3.109.orig/src/syscall-mips.h libaio-0.3.109/src/syscall-mips.h
> +--- libaio-0.3.109.orig/src/syscall-mips.h 2013-01-23 20:17:55.750897706 -0800
> ++++ libaio-0.3.109/src/syscall-mips.h 2013-01-23 13:13:34.143660455 -0800
> +@@ -76,7 +76,7 @@ type fname(atype a) \
> + \
> + if (__a3 == 0) \
> + return (type) __v0; \
> +- return (type) -1; \
> ++ return (type) -(__v0); \
> + }
> +
> + #define io_syscall2(type,fname,sname,atype,a,btype,b) \
> +@@ -100,7 +100,7 @@ type fname(atype a, btype b) \
> + \
> + if (__a3 == 0) \
> + return (type) __v0; \
> +- return (type) -1; \
> ++ return (type) -(__v0); \
> + }
> +
> + #define io_syscall3(type,fname,sname,atype,a,btype,b,ctype,c) \
> +@@ -125,7 +125,7 @@ type fname(atype a, btype b, ctype c) \
> + \
> + if (__a3 == 0) \
> + return (type) __v0; \
> +- return (type) -1; \
> ++ return (type) -(__v0); \
> + }
> +
> + #define io_syscall4(type,fname,sname,atype,a,btype,b,ctype,c,dtype,d) \
> +@@ -150,7 +150,7 @@ type fname(atype a, btype b, ctype c, dt
> + \
> + if (__a3 == 0) \
> + return (type) __v0; \
> +- return (type) -1; \
> ++ return (type) -(__v0); \
> + }
> +
> + #if (_MIPS_SIM == _MIPS_SIM_ABI32)
> +@@ -186,7 +186,7 @@ type fname(atype a, btype b, ctype c, dt
> + \
> + if (__a3 == 0) \
> + return (type) __v0; \
> +- return (type) -1; \
> ++ return (type) -(__v0); \
> + }
> +
> + #endif /* (_MIPS_SIM == _MIPS_SIM_ABI32) */
> +@@ -216,7 +216,7 @@ type fname (atype a,btype b,ctype c,dtyp
> + \
> + if (__a3 == 0) \
> + return (type) __v0; \
> +- return (type) -1; \
> ++ return (type) -(__v0); \
> + }
> +
> + #endif /* (_MIPS_SIM == _MIPS_SIM_NABI32) || (_MIPS_SIM == _MIPS_SIM_ABI64) */
> diff --git a/meta/recipes-extended/libaio/libaio_0.3.109.bb b/meta/recipes-extended/libaio/libaio_0.3.109.bb
> index 161b712..23641ed 100644
> --- a/meta/recipes-extended/libaio/libaio_0.3.109.bb
> +++ b/meta/recipes-extended/libaio/libaio_0.3.109.bb
> @@ -5,13 +5,15 @@ HOMEPAGE = "http://lse.sourceforge.net/io/aio.html"
> LICENSE = "LGPLv2.1+"
> LIC_FILES_CHKSUM = "file://COPYING;md5=d8045f3b8f929c1cb29a1e3fd737b499"
>
> -PR = "r1"
> +PR = "r2"
>
> SRC_URI = "${DEBIAN_MIRROR}/main/liba/libaio/libaio_${PV}.orig.tar.gz \
> file://00_arches.patch \
> file://toolchain.patch \
> file://destdir.patch \
> - file://libaio_fix_for_x32.patch"
> + file://libaio_fix_for_x32.patch \
> + file://libaio_fix_for_mips_syscall.patch \
> +"
This needs to be rebased to Master.
Sau!
>
> SRC_URI[md5sum] = "435a5b16ca6198eaf01155263d855756"
> SRC_URI[sha256sum] = "bf4a457253cbaab215aea75cb6e18dc8d95bbd507e9920661ff9bdd288c8778d"
>
next prev parent reply other threads:[~2013-01-30 4:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-29 19:28 [PATCH] mips: Fix libaio system call interface Phil Staub
2013-01-30 4:43 ` Saul Wold [this message]
2013-01-30 16:35 ` Phil Staub
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5108A4D9.6010702@linux.intel.com \
--to=sgw@linux.intel.com \
--cc=Phil.Staub@windriver.com \
--cc=openembedded-core@lists.openembedded.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.