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server: Fixed get_thread_context for x86_64.

This commit is contained in:
Alexandre Julliard 2006-07-11 12:06:38 +02:00
parent e4d3a72165
commit c242c3b3f3
1 changed files with 21 additions and 30 deletions
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51
server/ptrace.c
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@ -29,9 +29,6 @@
#ifdef HAVE_SYS_PTRACE_H
# include <sys/ptrace.h>
#endif
#ifdef HAVE_SYS_REG_H
#include <sys/reg.h>
#endif
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
@ -468,44 +465,38 @@ void get_selector_entry( struct thread *thread, int entry, unsigned int *base,
#endif
/* debug register offset in struct user */
#define DR_OFFSET(dr) ((int)((((struct user *)0)->u_debugreg) + (dr)))
/* retrieve a debug register */
static inline int get_debug_reg( int pid, int num, DWORD *data )
{
int res;
errno = 0;
res = ptrace( PTRACE_PEEKUSER, pid, DR_OFFSET(num), 0 );
if ((res == -1) && errno)
{
file_set_error();
return -1;
}
*data = res;
return 0;
}
#define DR_OFFSET(dr) ((((struct user *)0)->u_debugreg) + (dr))
/* retrieve the thread x86 registers */
void get_thread_context( struct thread *thread, CONTEXT *context, unsigned int flags )
{
int pid = get_ptrace_pid(thread);
int i, pid = get_ptrace_pid(thread);
long data[8];
/* all other regs are handled on the client side */
assert( (flags | CONTEXT_i386) == CONTEXT_DEBUG_REGISTERS );
if (!suspend_for_ptrace( thread )) return;
if (get_debug_reg( pid, 0, &context->Dr0 ) == -1) goto error;
if (get_debug_reg( pid, 1, &context->Dr1 ) == -1) goto error;
if (get_debug_reg( pid, 2, &context->Dr2 ) == -1) goto error;
if (get_debug_reg( pid, 3, &context->Dr3 ) == -1) goto error;
if (get_debug_reg( pid, 6, &context->Dr6 ) == -1) goto error;
if (get_debug_reg( pid, 7, &context->Dr7 ) == -1) goto error;
for (i = 0; i < 8; i++)
{
if (i == 4 || i == 5) continue;
errno = 0;
data[i] = ptrace( PTRACE_PEEKUSER, pid, DR_OFFSET(i), 0 );
if ((data[i] == -1) && errno)
{
file_set_error();
goto done;
}
}
context->Dr0 = data[0];
context->Dr1 = data[1];
context->Dr2 = data[2];
context->Dr3 = data[3];
context->Dr6 = data[6];
context->Dr7 = data[7];
context->ContextFlags |= CONTEXT_DEBUG_REGISTERS;
resume_after_ptrace( thread );
return;
error:
file_set_error();
done:
resume_after_ptrace( thread );
}