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um: finish conversion to mcontext_t

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now we don't mix host and guest signal frame layouts anymore; moreover,
we don't need host's struct sigcontext at all.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Al Viro
2011-08-18 20:05:19 +01:00
committed by Richard Weinberger
parent 248b74c79e
commit ab1c0cc7c9
9 changed files with 67 additions and 81 deletions
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6
arch/um/os-Linux/signal.c
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@@ -14,7 +14,7 @@
#include "os.h"
#include "process.h"
#include "sysdep/barrier.h"
#include "sysdep/sigcontext.h"
#include "sysdep/mcontext.h"
void (*sig_info[NSIG])(int, struct uml_pt_regs *) = {
[SIGTRAP] = relay_signal,
@@ -34,7 +34,7 @@ static void sig_handler_common(int sig, mcontext_t *mc)
r.is_user = 0;
if (sig == SIGSEGV) {
/* For segfaults, we want the data from the sigcontext. */
copy_sc(&r, (struct sigcontext *)mc);
get_regs_from_mc(&r, mc);
GET_FAULTINFO_FROM_MC(r.faultinfo, mc);
}
@@ -84,7 +84,7 @@ static void real_alarm_handler(mcontext_t *mc)
struct uml_pt_regs regs;
if (mc != NULL)
copy_sc(&regs, (struct sigcontext *)mc);
get_regs_from_mc(&regs, mc);
regs.is_user = 0;
unblock_signals();
timer_handler(SIGVTALRM, &regs);