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um: pass siginfo to guest process

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UML guest processes now get correct siginfo_t for SIGTRAP, SIGFPE,
SIGILL and SIGBUS. Specifically, si_addr and si_code are now correct
where previously they were si_addr = NULL and si_code = 128.

Signed-off-by: Martin Pärtel <martin.partel@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Martin Pärtel
2012-08-02 00:49:17 +02:00
committed by Richard Weinberger
parent d4afcba95f
commit d3c1cfcdb4
10 changed files with 71 additions and 34 deletions
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13
arch/um/include/shared/kern_util.h
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@@ -9,6 +9,8 @@
#include "sysdep/ptrace.h"
#include "sysdep/faultinfo.h"
struct siginfo;
extern int uml_exitcode;
extern int ncpus;
@@ -22,7 +24,7 @@ extern void free_stack(unsigned long stack, int order);
extern int do_signal(void);
extern void interrupt_end(void);
extern void relay_signal(int sig, struct uml_pt_regs *regs);
extern void relay_signal(int sig, struct siginfo *si, struct uml_pt_regs *regs);
extern unsigned long segv(struct faultinfo fi, unsigned long ip,
int is_user, struct uml_pt_regs *regs);
@@ -33,9 +35,8 @@ extern unsigned int do_IRQ(int irq, struct uml_pt_regs *regs);
extern int smp_sigio_handler(void);
extern void initial_thread_cb(void (*proc)(void *), void *arg);
extern int is_syscall(unsigned long addr);
extern void timer_handler(int sig, struct uml_pt_regs *regs);
extern void timer_handler(int sig, struct uml_pt_regs *regs);
extern void timer_handler(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs);
extern int start_uml(void);
extern void paging_init(void);
@@ -59,9 +60,9 @@ extern unsigned long from_irq_stack(int nested);
extern void syscall_trace(struct uml_pt_regs *regs, int entryexit);
extern int singlestepping(void *t);
extern void segv_handler(int sig, struct uml_pt_regs *regs);
extern void bus_handler(int sig, struct uml_pt_regs *regs);
extern void winch(int sig, struct uml_pt_regs *regs);
extern void segv_handler(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs);
extern void bus_handler(int sig, struct siginfo *si, struct uml_pt_regs *regs);
extern void winch(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs);
extern void fatal_sigsegv(void) __attribute__ ((noreturn));