[Xenomai-git] Gilles Chanteperdrix : signals: reduce signals handling memory footprint
Module: xenomai-head
Branch: master
Commit: 264b76b939fb2625b091a18133871e874479f97c
URL:
http://git.xenomai.org/?p=xenomai-head.git;a=commit;h=264b76b939fb2625b091a18133871e874479f97c
Author: Gilles Chanteperdrix gilles.chanteperd...@xenomai.org
Date: Fri Dec 4 23:27:17 2009 +0100
signals: reduce signals handling memory footprint
---
include/asm-arm/syscall.h |9 +---
include/asm-blackfin/syscall.h |8 +---
include/asm-generic/syscall.h | 18
include/asm-nios2/syscall.h|8 +---
include/asm-powerpc/syscall.h |9 +---
include/asm-x86/syscall.h | 93 ++-
src/skins/common/bind.c| 38
7 files changed, 98 insertions(+), 85 deletions(-)
diff --git a/include/asm-arm/syscall.h b/include/asm-arm/syscall.h
index be16e9c..0b51492 100644
--- a/include/asm-arm/syscall.h
+++ b/include/asm-arm/syscall.h
@@ -201,13 +201,6 @@ static inline int __xn_interrupted_p(struct pt_regs *regs)
err = XENOMAI_DO_SYSCALL_INNER(nr, shifted_id, \
op, sigs, args); \
res = xnsig_dispatch(sigs, res, err); \
- \
- while (sigs.nsigs sigs.remaining) { \
- sigs.nsigs = 0; \
- err = XENOMAI_DO_SYSCALL_INNER \
- (0, 0, __xn_sys_get_next_sigs, sigs); \
- res = xnsig_dispatch_next(sigs, res, err); \
- } \
} while (res == -ERESTART); \
res;\
})
@@ -226,6 +219,8 @@ static inline int __xn_interrupted_p(struct pt_regs *regs)
XENOMAI_DO_SYSCALL(5,0,op,a1,a2,a3,a4,a5)
#define XENOMAI_SYSBIND(a1,a2,a3,a4) \
XENOMAI_DO_SYSCALL(4,0,__xn_sys_bind,a1,a2,a3,a4)
+#define XENOMAI_SYSSIGS(sigs) \
+ XENOMAI_DO_SYSCALL_INNER(0, 0, __xn_sys_get_next_sigs, sigs)
#define XENOMAI_SKINCALL0(id,op) \
XENOMAI_DO_SYSCALL(0,id,op)
diff --git a/include/asm-blackfin/syscall.h b/include/asm-blackfin/syscall.h
index 02cc143..9f90611 100644
--- a/include/asm-blackfin/syscall.h
+++ b/include/asm-blackfin/syscall.h
@@ -221,12 +221,6 @@ static inline int __xn_interrupted_p(struct pt_regs *regs)
__err__ = XENOMAI_DO_SYSCALL_INNER(nr, shifted_id, \
op, __sigs__,
##args); \
__res__ = xnsig_dispatch(__sigs__, __res__, __err__); \
- while (__sigs__.nsigs __sigs__.remaining) { \
- __sigs__.nsigs = 0; \
- __err__ = XENOMAI_DO_SYSCALL_INNER \
- (0, 0, __xn_sys_get_next_sigs,
__sigs__); \
- __res__ = xnsig_dispatch_next(__sigs__,
__res__, __err__); \
- } \
} while (__res__ == -ERESTART); \
__res__;\
})
@@ -238,6 +232,8 @@ static inline int __xn_interrupted_p(struct pt_regs *regs)
#define XENOMAI_SYSCALL4(op,a1,a2,a3,a4)
XENOMAI_DO_SYSCALL(4,0,op,a1,a2,a3,a4)
#define XENOMAI_SYSCALL5(op,a1,a2,a3,a4,a5)
XENOMAI_DO_SYSCALL(5,0,op,a1,a2,a3,a4,a5)
#define XENOMAI_SYSBIND(a1,a2,a3,a4)
XENOMAI_DO_SYSCALL(4,0,__xn_sys_bind,a1,a2,a3,a4)
+#define XENOMAI_SYSSIGS(sigs) \
+ XENOMAI_DO_SYSCALL_INNER(0, 0, __xn_sys_get_next_sigs, sigs)
#define XENOMAI_SKINCALL0(id,op)XENOMAI_DO_SYSCALL(0,id,op)
#define XENOMAI_SKINCALL1(id,op,a1) XENOMAI_DO_SYSCALL(1,id,op,a1)
diff --git a/include/asm-generic/syscall.h b/include/asm-generic/syscall.h
index 926498b..483b99f 100644
--- a/include/asm-generic/syscall.h
+++ b/include/asm-generic/syscall.h
@@ -158,10 +158,15 @@ static inline int __xn_safe_strncpy_from_user(char *dst,
#else /* !__KERNEL__ */
#ifdef __cplusplus
-extern C
+extern C {
#endif /* __cplusplus */
int __xnsig_dispatch(struct xnsig *sigs, int cumulated_error, int last_error);
+int __xnsig_dispatch_safe(struct xnsig *sigs, int cumulated_error, int
last_error);
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
/* Called to dispatch signals which interrupted a system call. */
static inline int xnsig_dispatch(struct xnsig *sigs, int cumul, int last)
{
@@ -170,16 +175,11 @@ static inline int xnsig_dispatch(struct xnsig *sigs, int
cumul, int last)
[Xenomai-git] Gilles Chanteperdrix : signals: reduce signals handling memory footprint
Module: xenomai-gch Branch: for-head Commit: e7e1d7638ee8d3de1099c68311766bfd4e534f31 URL: http://git.xenomai.org/?p=xenomai-gch.git;a=commit;h=e7e1d7638ee8d3de1099c68311766bfd4e534f31 Author: Gilles Chanteperdrix gilles.chanteperd...@xenomai.org Date: Wed Dec 2 17:12:21 2009 +0100 signals: reduce signals handling memory footprint --- Makefile.in| 193 +- aclocal.m4 | 323 +- config/Makefile.in | 43 +- configure | 5860 doc/Makefile.in| 131 +- doc/docbook/Makefile.in| 131 +- doc/docbook/custom-stylesheets/Makefile.in | 131 +- doc/docbook/custom-stylesheets/xsl/Makefile.in | 131 +- .../custom-stylesheets/xsl/common/Makefile.in | 43 +- doc/docbook/custom-stylesheets/xsl/fo/Makefile.in | 43 +- .../custom-stylesheets/xsl/html/Makefile.in| 43 +- doc/docbook/xenomai/Makefile.in| 43 +- doc/doxygen/Makefile.in| 43 +- doc/man/Makefile.in| 215 +- doc/txt/Makefile.in| 82 +- include/Makefile.in| 192 +- include/analogy/Makefile.in| 105 +- include/asm-arm/Makefile.in| 170 +- include/asm-arm/bits/Makefile.in | 105 +- include/asm-arm/syscall.h |9 +- include/asm-blackfin/Makefile.in | 170 +- include/asm-blackfin/bits/Makefile.in | 105 +- include/asm-blackfin/syscall.h |8 +- include/asm-generic/Makefile.in| 170 +- include/asm-generic/bits/Makefile.in | 105 +- include/asm-generic/syscall.h | 18 +- include/asm-nios2/Makefile.in | 170 +- include/asm-nios2/bits/Makefile.in | 105 +- include/asm-nios2/syscall.h|8 +- include/asm-powerpc/Makefile.in| 170 +- include/asm-powerpc/bits/Makefile.in | 105 +- include/asm-powerpc/syscall.h |9 +- include/asm-sim/Makefile.in| 170 +- include/asm-sim/bits/Makefile.in | 105 +- include/asm-x86/Makefile.in| 170 +- include/asm-x86/bits/Makefile.in | 105 +- include/asm-x86/syscall.h | 93 +- include/native/Makefile.in | 105 +- include/nucleus/Makefile.in| 105 +- include/posix/Makefile.in | 170 +- include/posix/sys/Makefile.in | 105 +- include/psos+/Makefile.in | 105 +- include/rtai/Makefile.in | 105 +- include/rtdm/Makefile.in | 105 +- include/uitron/Makefile.in | 105 +- include/vrtx/Makefile.in | 105 +- include/vxworks/Makefile.in| 105 +- scripts/Makefile.in| 104 +- src/Makefile.in| 131 +- src/drvlib/Makefile.in | 131 +- src/drvlib/analogy/Makefile.in | 149 +- src/include/Makefile.in| 47 +- src/include/xeno_config.h.in |3 - src/rtdk/Makefile.in | 137 +- src/skins/Makefile.in | 131 +- src/skins/common/Makefile.in | 97 +- src/skins/common/bind.c| 38 + src/skins/native/Makefile.in | 203 +- src/skins/posix/Makefile.in| 191 +- src/skins/psos+/Makefile.in| 155 +- src/skins/rtai/Makefile.in | 125 +- src/skins/rtdm/Makefile.in | 125 +- src/skins/uitron/Makefile.in | 143 +- src/skins/vrtx/Makefile.in | 179 +- src/skins/vxworks/Makefile.in | 185 +- src/testsuite/Makefile.in | 131 +- src/testsuite/clocktest/Makefile.in| 133 +- src/testsuite/cyclic/Makefile.in | 133 +- src/testsuite/irqbench/Makefile.in | 137 +- src/testsuite/klatency/Makefile.in | 133 +- src/testsuite/latency/Makefile.in | 133 +- src/testsuite/sigtest/Makefile.in | 133 +- src/testsuite/switchtest/Makefile.in | 133 +- src/testsuite/unit/Makefile.in | 149 +- src/utils/Makefile.in
[Xenomai-git] Gilles Chanteperdrix : signals: reduce signals handling memory footprint
Module: xenomai-gch
Branch: for-head
Commit: 264b76b939fb2625b091a18133871e874479f97c
URL:
http://git.xenomai.org/?p=xenomai-gch.git;a=commit;h=264b76b939fb2625b091a18133871e874479f97c
Author: Gilles Chanteperdrix gilles.chanteperd...@xenomai.org
Date: Fri Dec 4 23:27:17 2009 +0100
signals: reduce signals handling memory footprint
---
include/asm-arm/syscall.h |9 +---
include/asm-blackfin/syscall.h |8 +---
include/asm-generic/syscall.h | 18
include/asm-nios2/syscall.h|8 +---
include/asm-powerpc/syscall.h |9 +---
include/asm-x86/syscall.h | 93 ++-
src/skins/common/bind.c| 38
7 files changed, 98 insertions(+), 85 deletions(-)
diff --git a/include/asm-arm/syscall.h b/include/asm-arm/syscall.h
index be16e9c..0b51492 100644
--- a/include/asm-arm/syscall.h
+++ b/include/asm-arm/syscall.h
@@ -201,13 +201,6 @@ static inline int __xn_interrupted_p(struct pt_regs *regs)
err = XENOMAI_DO_SYSCALL_INNER(nr, shifted_id, \
op, sigs, args); \
res = xnsig_dispatch(sigs, res, err); \
- \
- while (sigs.nsigs sigs.remaining) { \
- sigs.nsigs = 0; \
- err = XENOMAI_DO_SYSCALL_INNER \
- (0, 0, __xn_sys_get_next_sigs, sigs); \
- res = xnsig_dispatch_next(sigs, res, err); \
- } \
} while (res == -ERESTART); \
res;\
})
@@ -226,6 +219,8 @@ static inline int __xn_interrupted_p(struct pt_regs *regs)
XENOMAI_DO_SYSCALL(5,0,op,a1,a2,a3,a4,a5)
#define XENOMAI_SYSBIND(a1,a2,a3,a4) \
XENOMAI_DO_SYSCALL(4,0,__xn_sys_bind,a1,a2,a3,a4)
+#define XENOMAI_SYSSIGS(sigs) \
+ XENOMAI_DO_SYSCALL_INNER(0, 0, __xn_sys_get_next_sigs, sigs)
#define XENOMAI_SKINCALL0(id,op) \
XENOMAI_DO_SYSCALL(0,id,op)
diff --git a/include/asm-blackfin/syscall.h b/include/asm-blackfin/syscall.h
index 02cc143..9f90611 100644
--- a/include/asm-blackfin/syscall.h
+++ b/include/asm-blackfin/syscall.h
@@ -221,12 +221,6 @@ static inline int __xn_interrupted_p(struct pt_regs *regs)
__err__ = XENOMAI_DO_SYSCALL_INNER(nr, shifted_id, \
op, __sigs__,
##args); \
__res__ = xnsig_dispatch(__sigs__, __res__, __err__); \
- while (__sigs__.nsigs __sigs__.remaining) { \
- __sigs__.nsigs = 0; \
- __err__ = XENOMAI_DO_SYSCALL_INNER \
- (0, 0, __xn_sys_get_next_sigs,
__sigs__); \
- __res__ = xnsig_dispatch_next(__sigs__,
__res__, __err__); \
- } \
} while (__res__ == -ERESTART); \
__res__;\
})
@@ -238,6 +232,8 @@ static inline int __xn_interrupted_p(struct pt_regs *regs)
#define XENOMAI_SYSCALL4(op,a1,a2,a3,a4)
XENOMAI_DO_SYSCALL(4,0,op,a1,a2,a3,a4)
#define XENOMAI_SYSCALL5(op,a1,a2,a3,a4,a5)
XENOMAI_DO_SYSCALL(5,0,op,a1,a2,a3,a4,a5)
#define XENOMAI_SYSBIND(a1,a2,a3,a4)
XENOMAI_DO_SYSCALL(4,0,__xn_sys_bind,a1,a2,a3,a4)
+#define XENOMAI_SYSSIGS(sigs) \
+ XENOMAI_DO_SYSCALL_INNER(0, 0, __xn_sys_get_next_sigs, sigs)
#define XENOMAI_SKINCALL0(id,op)XENOMAI_DO_SYSCALL(0,id,op)
#define XENOMAI_SKINCALL1(id,op,a1) XENOMAI_DO_SYSCALL(1,id,op,a1)
diff --git a/include/asm-generic/syscall.h b/include/asm-generic/syscall.h
index 926498b..483b99f 100644
--- a/include/asm-generic/syscall.h
+++ b/include/asm-generic/syscall.h
@@ -158,10 +158,15 @@ static inline int __xn_safe_strncpy_from_user(char *dst,
#else /* !__KERNEL__ */
#ifdef __cplusplus
-extern C
+extern C {
#endif /* __cplusplus */
int __xnsig_dispatch(struct xnsig *sigs, int cumulated_error, int last_error);
+int __xnsig_dispatch_safe(struct xnsig *sigs, int cumulated_error, int
last_error);
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
/* Called to dispatch signals which interrupted a system call. */
static inline int xnsig_dispatch(struct xnsig *sigs, int cumul, int last)
{
@@ -170,16 +175,11 @@ static inline int xnsig_dispatch(struct xnsig *sigs, int
cumul, int last)
[Xenomai-git] Gilles Chanteperdrix : signals: reduce signals handling memory footprint
Module: xenomai-gch
Branch: for-head
Commit: dd97d5ef89be95bb26fa86ad19b014eff3444fc1
URL:
http://git.xenomai.org/?p=xenomai-gch.git;a=commit;h=dd97d5ef89be95bb26fa86ad19b014eff3444fc1
Author: Gilles Chanteperdrix gilles.chanteperd...@xenomai.org
Date: Wed Dec 2 17:12:21 2009 +0100
signals: reduce signals handling memory footprint
---
include/asm-generic/syscall.h | 18 +-
include/asm-x86/syscall.h | 35 ++-
src/skins/common/bind.c | 40
3 files changed, 59 insertions(+), 34 deletions(-)
diff --git a/include/asm-generic/syscall.h b/include/asm-generic/syscall.h
index 926498b..483b99f 100644
--- a/include/asm-generic/syscall.h
+++ b/include/asm-generic/syscall.h
@@ -158,10 +158,15 @@ static inline int __xn_safe_strncpy_from_user(char *dst,
#else /* !__KERNEL__ */
#ifdef __cplusplus
-extern C
+extern C {
#endif /* __cplusplus */
int __xnsig_dispatch(struct xnsig *sigs, int cumulated_error, int last_error);
+int __xnsig_dispatch_safe(struct xnsig *sigs, int cumulated_error, int
last_error);
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
/* Called to dispatch signals which interrupted a system call. */
static inline int xnsig_dispatch(struct xnsig *sigs, int cumul, int last)
{
@@ -170,16 +175,11 @@ static inline int xnsig_dispatch(struct xnsig *sigs, int
cumul, int last)
return last;
}
-/* Called to dispatch additional signals (received with the special
- system call __xn_sys_get_next_sigs), it may happen that this
- syscall was in fact called whereas no additional signal was
- pending, in this case, ignore the syscall return value (last) and
- preserve the cumulated error. */
-static inline int xnsig_dispatch_next(struct xnsig *sigs, int cumul, int last)
+static inline int xnsig_dispatch_safe(struct xnsig *sigs, int cumul, int last)
{
if (sigs-nsigs)
- return __xnsig_dispatch(sigs, cumul, last);
- return cumul;
+ return __xnsig_dispatch_safe(sigs, cumul, last);
+ return last;
}
#endif /* !__KERNEL__ */
diff --git a/include/asm-x86/syscall.h b/include/asm-x86/syscall.h
index 7b6aa20..26ea33f 100644
--- a/include/asm-x86/syscall.h
+++ b/include/asm-x86/syscall.h
@@ -166,15 +166,19 @@ static inline void __xn_get_ebp(void **dest)
asm volatile(movl %%ebp, %0: =m(*dest));
}
+#define XENOMAI_SIGS_TO_SYSARG(sigs) \
+ (((struct frame *)sigs)-last_fp)
+
#define XENOMAI_SYS_MUX_INNER(nr, op, args...) \
({ \
unsigned __resultvar; \
asm volatile ( \
LOADARGS_##nr \
movl %1, %%eax\n\t\
+ pushl %%ebp\n\t \
movl %2, %%ebp\n\t\
DOSYSCALL \
- movl (%%ebp), %%ebp\n\t \
+ popl %%ebp\n\t\
RESTOREARGS_##nr\
: =a (__resultvar)\
: i (__xn_mux_code(0, op)) ASMFMT_##nr(args) \
@@ -195,13 +199,6 @@ static inline void __xn_get_ebp(void **dest)
f.sigs.nsigs = 0; \
err = XENOMAI_SYS_MUX_INNER(nr, op, fp, args); \
res = xnsig_dispatch(f.sigs, res, err);\
- \
- while (f.sigs.nsigs f.sigs.remaining) { \
- f.sigs.nsigs = 0; \
- err = XENOMAI_SYS_MUX_INNER \
- (0, __xn_sys_get_next_sigs, fp);\
- res = xnsig_dispatch_next(f.sigs, res, err); \
- } \
} while (res == -ERESTART); \
res;\
})
@@ -212,9 +209,10 @@ static inline void __xn_get_ebp(void **dest)
asm volatile ( \
LOADARGS_##nr \
movl %1, %%eax\n\t\
+ pushl %%ebp\n\t \
movl %2, %%ebp\n\t\
DOSYSCALLSAFE \
- movl (%%ebp), %%ebp\n\t \
+ popl %%ebp\n\t\
RESTOREARGS_##nr
[Xenomai-git] Gilles Chanteperdrix : signals: reduce signals handling memory footprint
Module: xenomai-gch
Branch: for-head
Commit: 578708c5ccc5fe19ca8f5c8b0fed92f9125c1487
URL:
http://git.xenomai.org/?p=xenomai-gch.git;a=commit;h=578708c5ccc5fe19ca8f5c8b0fed92f9125c1487
Author: Gilles Chanteperdrix gilles.chanteperd...@xenomai.org
Date: Wed Dec 2 17:12:21 2009 +0100
signals: reduce signals handling memory footprint
---
include/asm-arm/syscall.h |9 +---
include/asm-blackfin/syscall.h |8 +---
include/asm-generic/syscall.h | 18
include/asm-nios2/syscall.h|8 +---
include/asm-powerpc/syscall.h |9 +---
include/asm-x86/syscall.h | 93 ++-
src/skins/common/bind.c| 38
7 files changed, 98 insertions(+), 85 deletions(-)
diff --git a/include/asm-arm/syscall.h b/include/asm-arm/syscall.h
index be16e9c..0b51492 100644
--- a/include/asm-arm/syscall.h
+++ b/include/asm-arm/syscall.h
@@ -201,13 +201,6 @@ static inline int __xn_interrupted_p(struct pt_regs *regs)
err = XENOMAI_DO_SYSCALL_INNER(nr, shifted_id, \
op, sigs, args); \
res = xnsig_dispatch(sigs, res, err); \
- \
- while (sigs.nsigs sigs.remaining) { \
- sigs.nsigs = 0; \
- err = XENOMAI_DO_SYSCALL_INNER \
- (0, 0, __xn_sys_get_next_sigs, sigs); \
- res = xnsig_dispatch_next(sigs, res, err); \
- } \
} while (res == -ERESTART); \
res;\
})
@@ -226,6 +219,8 @@ static inline int __xn_interrupted_p(struct pt_regs *regs)
XENOMAI_DO_SYSCALL(5,0,op,a1,a2,a3,a4,a5)
#define XENOMAI_SYSBIND(a1,a2,a3,a4) \
XENOMAI_DO_SYSCALL(4,0,__xn_sys_bind,a1,a2,a3,a4)
+#define XENOMAI_SYSSIGS(sigs) \
+ XENOMAI_DO_SYSCALL_INNER(0, 0, __xn_sys_get_next_sigs, sigs)
#define XENOMAI_SKINCALL0(id,op) \
XENOMAI_DO_SYSCALL(0,id,op)
diff --git a/include/asm-blackfin/syscall.h b/include/asm-blackfin/syscall.h
index 02cc143..9f90611 100644
--- a/include/asm-blackfin/syscall.h
+++ b/include/asm-blackfin/syscall.h
@@ -221,12 +221,6 @@ static inline int __xn_interrupted_p(struct pt_regs *regs)
__err__ = XENOMAI_DO_SYSCALL_INNER(nr, shifted_id, \
op, __sigs__,
##args); \
__res__ = xnsig_dispatch(__sigs__, __res__, __err__); \
- while (__sigs__.nsigs __sigs__.remaining) { \
- __sigs__.nsigs = 0; \
- __err__ = XENOMAI_DO_SYSCALL_INNER \
- (0, 0, __xn_sys_get_next_sigs,
__sigs__); \
- __res__ = xnsig_dispatch_next(__sigs__,
__res__, __err__); \
- } \
} while (__res__ == -ERESTART); \
__res__;\
})
@@ -238,6 +232,8 @@ static inline int __xn_interrupted_p(struct pt_regs *regs)
#define XENOMAI_SYSCALL4(op,a1,a2,a3,a4)
XENOMAI_DO_SYSCALL(4,0,op,a1,a2,a3,a4)
#define XENOMAI_SYSCALL5(op,a1,a2,a3,a4,a5)
XENOMAI_DO_SYSCALL(5,0,op,a1,a2,a3,a4,a5)
#define XENOMAI_SYSBIND(a1,a2,a3,a4)
XENOMAI_DO_SYSCALL(4,0,__xn_sys_bind,a1,a2,a3,a4)
+#define XENOMAI_SYSSIGS(sigs) \
+ XENOMAI_DO_SYSCALL_INNER(0, 0, __xn_sys_get_next_sigs, sigs)
#define XENOMAI_SKINCALL0(id,op)XENOMAI_DO_SYSCALL(0,id,op)
#define XENOMAI_SKINCALL1(id,op,a1) XENOMAI_DO_SYSCALL(1,id,op,a1)
diff --git a/include/asm-generic/syscall.h b/include/asm-generic/syscall.h
index 926498b..483b99f 100644
--- a/include/asm-generic/syscall.h
+++ b/include/asm-generic/syscall.h
@@ -158,10 +158,15 @@ static inline int __xn_safe_strncpy_from_user(char *dst,
#else /* !__KERNEL__ */
#ifdef __cplusplus
-extern C
+extern C {
#endif /* __cplusplus */
int __xnsig_dispatch(struct xnsig *sigs, int cumulated_error, int last_error);
+int __xnsig_dispatch_safe(struct xnsig *sigs, int cumulated_error, int
last_error);
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
/* Called to dispatch signals which interrupted a system call. */
static inline int xnsig_dispatch(struct xnsig *sigs, int cumul, int last)
{
@@ -170,16 +175,11 @@ static inline int xnsig_dispatch(struct xnsig *sigs, int
cumul, int last)
