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| author | Phil Staub <Phil.Staub@windriver.com> | 2013-01-31 08:35:25 -0800 |
|---|---|---|
| committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2013-02-01 15:41:19 +0000 |
| commit | 0d8f50c33e5ff71dc17121b5c293718a8ad602bd (patch) | |
| tree | 3fd49e9be5f267a55c0ff9eb09b1933a43761152 /meta/recipes-extended/libaio/libaio | |
| parent | dc7d181ab03ceab87a24d932130109003334dbf8 (diff) | |
| download | openembedded-core-0d8f50c33e5ff71dc17121b5c293718a8ad602bd.tar.gz openembedded-core-0d8f50c33e5ff71dc17121b5c293718a8ad602bd.tar.bz2 openembedded-core-0d8f50c33e5ff71dc17121b5c293718a8ad602bd.zip | |
libaio: Fix MIPS system call interface
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>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-extended/libaio/libaio')
| -rw-r--r-- | meta/recipes-extended/libaio/libaio/libaio_fix_for_mips_syscalls.patch | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/meta/recipes-extended/libaio/libaio/libaio_fix_for_mips_syscalls.patch b/meta/recipes-extended/libaio/libaio/libaio_fix_for_mips_syscalls.patch new file mode 100644 index 0000000000..022276af83 --- /dev/null +++ b/meta/recipes-extended/libaio/libaio/libaio_fix_for_mips_syscalls.patch @@ -0,0 +1,62 @@ +Upstream status: Inappropriate [embedded specific] + +Signed-off-by: Phil Staub <Phil.Staub@windriver.com> + +Index: libaio-0.3.109/src/syscall-mips.h +=================================================================== +--- libaio-0.3.109.orig/src/syscall-mips.h ++++ libaio-0.3.109/src/syscall-mips.h +@@ -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) */ |