Re: CVS commit: src/tests/lib/libc/gen

[christos%zoulas.com@localhost (Christos Zoulas)]

On Apr 23,  9:48am, martin%duskware.de@localhost (Martin Husemann) wrote:
-- Subject: Re: CVS commit: src/tests/lib/libc/gen

| On Sun, Apr 22, 2012 at 08:25:11PM +0000, Christos Zoulas wrote:
| > There is no portable way to do this; sigbus according to ToG does not
| > define what si_addr contains.
| 
| I read it differently:
| 
| The <signal.h> header shall define the siginfo_t type as a structure,
| which shall include at least the following members:
| 
| int           si_signo  Signal number. 
| int           si_code   Signal code. 
| int           si_errno  If non-zero, an errno value associated with 
|                         this signal, as described in <errno.h>. 
| pid_t         si_pid    Sending process ID. 
| uid_t         si_uid    Real user ID of sending process. 
| void         *si_addr   Address of faulting instruction. 
| int           si_status Exit value or signal. 
| long          si_band   Band event for SIGPOLL. 
| union sigval  si_value  Signal value. 
| 
| 
| This is from:
| 
|    http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/signal.h.html
| 
| 
| I think we should modify the test to use RAS_START() and RAS_END() to verify
| the faulting code address and ignore the associated data address.

Keep reading and then it is the following table:


Signal

Member

Value

SIGILL, SIGFPE

void * si_addr

Address of faulting instruction.

SIGSEGV, SIGBUS

void * si_addr

Address of faulting memory reference.

SIGCHLD

pid_t si_pid

Child process ID.

 

int si_status

Exit value or signal.

 

uid_t si_uid

Real user ID of the process that sent the signal. 

[OB XSR]  SIGPOLL

long si_band

Band event for POLL_IN, POLL_OUT, or POLL_MSG. 


christos