[Xenomai-git] Philippe Gerum : cobalt/x86: drop %esp from mayday fixup in 32bit mode

2015-03-24 Thread git repository hosting 
Module: xenomai-3
Branch: master
Commit: 6ca5c4950139b323f39dbaac3303a816278745d3
URL:
http://git.xenomai.org/?p=xenomai-3.git;a=commit;h=6ca5c4950139b323f39dbaac3303a816278745d3

Author: Philippe Gerum 
Date:   Fri Feb 13 18:11:05 2015 +0100

cobalt/x86: drop %esp from mayday fixup in 32bit mode

We don't need this anymore, since %esp is part of the register frame
saved by int80.

---

 kernel/cobalt/arch/x86/include/asm/xenomai/thread.h |1 -
 kernel/cobalt/arch/x86/mayday.c |3 ---
 2 files changed, 4 deletions(-)

diff --git a/kernel/cobalt/arch/x86/include/asm/xenomai/thread.h 
b/kernel/cobalt/arch/x86/include/asm/xenomai/thread.h
index 544507c..f58caf7 100644
--- a/kernel/cobalt/arch/x86/include/asm/xenomai/thread.h
+++ b/kernel/cobalt/arch/x86/include/asm/xenomai/thread.h
@@ -39,7 +39,6 @@ struct xnarchtcb {
struct {
unsigned long ip;
unsigned long ax;
-   unsigned long sp;
} mayday;
 };
 
diff --git a/kernel/cobalt/arch/x86/mayday.c b/kernel/cobalt/arch/x86/mayday.c
index 22a9196..15f07bd 100644
--- a/kernel/cobalt/arch/x86/mayday.c
+++ b/kernel/cobalt/arch/x86/mayday.c
@@ -191,7 +191,6 @@ void *xnarch_get_mayday_page(void)
 void xnarch_handle_mayday(struct xnarchtcb *tcb, struct pt_regs *regs,
  unsigned long tramp)
 {
-   tcb->mayday.sp = regs->sp;
tcb->mayday.ip = regs->ip;
tcb->mayday.ax = regs->ax;
regs->ip = tramp;
@@ -204,12 +203,10 @@ void xnarch_fixup_mayday(struct xnarchtcb *tcb, struct 
pt_regs *regs)
test_thread_flag(TIF_IA32)) {
regs->ip = tcb->mayday.ip;
regs->ax = tcb->mayday.ax;
-   regs->sp = tcb->mayday.sp;
} else
regs->ax = tcb->mayday.ip;
 #else
regs->ip = tcb->mayday.ip;
regs->ax = tcb->mayday.ax;
-   regs->sp = tcb->mayday.sp;
 #endif
 }


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[Xenomai-git] Philippe Gerum : cobalt/x86: drop %esp from mayday fixup in 32bit mode

2015-02-13 Thread git repository hosting 
Module: xenomai-3
Branch: next
Commit: 6ca5c4950139b323f39dbaac3303a816278745d3
URL:
http://git.xenomai.org/?p=xenomai-3.git;a=commit;h=6ca5c4950139b323f39dbaac3303a816278745d3

Author: Philippe Gerum 
Date:   Fri Feb 13 18:11:05 2015 +0100

cobalt/x86: drop %esp from mayday fixup in 32bit mode

We don't need this anymore, since %esp is part of the register frame
saved by int80.

---

 kernel/cobalt/arch/x86/include/asm/xenomai/thread.h |1 -
 kernel/cobalt/arch/x86/mayday.c |3 ---
 2 files changed, 4 deletions(-)

diff --git a/kernel/cobalt/arch/x86/include/asm/xenomai/thread.h 
b/kernel/cobalt/arch/x86/include/asm/xenomai/thread.h
index 544507c..f58caf7 100644
--- a/kernel/cobalt/arch/x86/include/asm/xenomai/thread.h
+++ b/kernel/cobalt/arch/x86/include/asm/xenomai/thread.h
@@ -39,7 +39,6 @@ struct xnarchtcb {
struct {
unsigned long ip;
unsigned long ax;
-   unsigned long sp;
} mayday;
 };
 
diff --git a/kernel/cobalt/arch/x86/mayday.c b/kernel/cobalt/arch/x86/mayday.c
index 22a9196..15f07bd 100644
--- a/kernel/cobalt/arch/x86/mayday.c
+++ b/kernel/cobalt/arch/x86/mayday.c
@@ -191,7 +191,6 @@ void *xnarch_get_mayday_page(void)
 void xnarch_handle_mayday(struct xnarchtcb *tcb, struct pt_regs *regs,
  unsigned long tramp)
 {
-   tcb->mayday.sp = regs->sp;
tcb->mayday.ip = regs->ip;
tcb->mayday.ax = regs->ax;
regs->ip = tramp;
@@ -204,12 +203,10 @@ void xnarch_fixup_mayday(struct xnarchtcb *tcb, struct 
pt_regs *regs)
test_thread_flag(TIF_IA32)) {
regs->ip = tcb->mayday.ip;
regs->ax = tcb->mayday.ax;
-   regs->sp = tcb->mayday.sp;
} else
regs->ax = tcb->mayday.ip;
 #else
regs->ip = tcb->mayday.ip;
regs->ax = tcb->mayday.ax;
-   regs->sp = tcb->mayday.sp;
 #endif
 }


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