* This file contains machine independent code for performing core dumps.
*
*/
+#if CONFIG_COREDUMP
#include <mach/vm_param.h>
#include <mach/thread_status.h>
-
+#include <sys/content_protection.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/signalvar.h>
#include <security/audit/audit.h>
+#if CONFIG_CSR
+#include <sys/codesign.h>
+#include <sys/csr.h>
+#endif
+
typedef struct {
int flavor; /* the number for this flavor */
mach_msg_type_number_t count; /* count of ints in this flavor */
{x86_EXCEPTION_STATE, x86_EXCEPTION_STATE_COUNT},
};
int mynum_flavors=3;
+#elif defined (__arm__)
+mythread_state_flavor_t thread_flavor_array[]={
+ {ARM_THREAD_STATE , ARM_THREAD_STATE_COUNT},
+ {ARM_VFP_STATE, ARM_VFP_STATE_COUNT},
+ {ARM_EXCEPTION_STATE, ARM_EXCEPTION_STATE_COUNT}
+ };
+int mynum_flavors=3;
+
+#elif defined (__arm64__)
+mythread_state_flavor_t thread_flavor_array[]={
+ {ARM_THREAD_STATE64 , ARM_THREAD_STATE64_COUNT},
+ /* ARM64_TODO: VFP */
+ {ARM_EXCEPTION_STATE64, ARM_EXCEPTION_STATE64_COUNT}
+ };
+int mynum_flavors=2;
#else
#error architecture not supported
#endif
int flavor_count;
} tir_t;
-/* XXX should be static */
-void collectth_state(thread_t th_act, void *tirp);
-
extern int freespace_mb(vnode_t vp);
/* XXX not in a Mach header anywhere */
-kern_return_t thread_getstatus(register thread_t act, int flavor,
+kern_return_t thread_getstatus(thread_t act, int flavor,
thread_state_t tstate, mach_msg_type_number_t *count);
void task_act_iterate_wth_args(task_t, void(*)(thread_t, void *), void *);
-extern kern_return_t task_suspend_internal(task_t);
-
-static cpu_type_t process_cpu_type(proc_t proc);
-static cpu_type_t process_cpu_subtype(proc_t proc);
#ifdef SECURE_KERNEL
__XNU_PRIVATE_EXTERN int do_coredump = 0; /* default: don't dump cores */
} else {
what_we_think = CPU_TYPE_I386;
}
+#elif defined (__arm__) || defined(__arm64__)
+ if (IS_64BIT_PROCESS(core_proc)) {
+ what_we_think = CPU_TYPE_ARM64;
+ } else {
+ what_we_think = CPU_TYPE_ARM;
+ }
#endif
return what_we_think;
}
} else {
what_we_think = CPU_SUBTYPE_I386_ALL;
}
+#elif defined (__arm__) || defined(__arm64__)
+ if (IS_64BIT_PROCESS(core_proc)) {
+ what_we_think = CPU_SUBTYPE_ARM64_ALL;
+ } else {
+ what_we_think = CPU_SUBTYPE_ARM_ALL;
+ }
#endif
return what_we_think;
}
-void
+static void
collectth_state(thread_t th_act, void *tirp)
{
vm_offset_t header;
t->hoffset = hoffset;
}
-
/*
* coredump
*
* Parameters: core_proc Process to dump core [*]
* reserve_mb If non-zero, leave filesystem with
* at least this much free space.
- * ignore_ulimit If set, ignore the process's core file ulimit.
+ * coredump_flags Extra options (ignore rlimit, run fsync)
*
* Returns: 0 Success
* EFAULT Failed
*/
#define MAX_TSTATE_FLAVORS 10
int
-coredump(proc_t core_proc, uint32_t reserve_mb, int ignore_ulimit)
+coredump(proc_t core_proc, uint32_t reserve_mb, int coredump_flags)
{
/* Begin assumptions that limit us to only the current process */
vfs_context_t ctx = vfs_context_current();
return (EFAULT);
}
+#if CONFIG_CSR
+ /* If the process is restricted, CSR isn't configured to allow
+ * restricted processes to be debugged, and CSR isn't configured in
+ * AppleInternal mode, then don't dump core. */
+ if (cs_restricted(core_proc) &&
+ csr_check(CSR_ALLOW_TASK_FOR_PID) &&
+ csr_check(CSR_ALLOW_APPLE_INTERNAL)) {
+#if CONFIG_AUDIT
+ audit_proc_coredump(core_proc, NULL, EFAULT);
+#endif
+ return (EFAULT);
+ }
+#endif
+
if (IS_64BIT_PROCESS(core_proc)) {
is_64 = 1;
mach_header_sz = sizeof(struct mach_header_64);
mapsize = get_vmmap_size(map);
- if ((mapsize >= core_proc->p_rlimit[RLIMIT_CORE].rlim_cur) && (ignore_ulimit == 0))
+ if (((coredump_flags & COREDUMP_IGNORE_ULIMIT) == 0) &&
+ (mapsize >= core_proc->p_rlimit[RLIMIT_CORE].rlim_cur))
return (EFAULT);
+
(void) task_suspend_internal(task);
MALLOC(alloced_name, char *, MAXPATHLEN, M_TEMP, M_NOWAIT | M_ZERO);
VATTR_INIT(&va); /* better to do it here than waste more stack in vnode_setsize */
VATTR_SET(&va, va_data_size, 0);
+ if (core_proc == initproc) {
+ VATTR_SET(&va, va_dataprotect_class, PROTECTION_CLASS_D);
+ }
vnode_setattr(vp, &va, ctx);
core_proc->p_acflag |= ACORE;
header_size = command_size + mach_header_sz;
- if (kmem_alloc(kernel_map, &header, (vm_size_t)header_size) != KERN_SUCCESS) {
+ if (kmem_alloc(kernel_map, &header, (vm_size_t)header_size, VM_KERN_MEMORY_DIAG) != KERN_SUCCESS) {
error = ENOMEM;
goto out;
}
sc64->maxprot = maxprot;
sc64->initprot = prot;
sc64->nsects = 0;
+ sc64->flags = 0;
} else {
sc = (struct segment_command *) (header + hoffset);
sc->cmd = LC_SEGMENT;
sc->maxprot = maxprot;
sc->initprot = prot;
sc->nsects = 0;
+ sc->flags = 0;
}
/*
error = vn_rdwr(UIO_WRITE, vp, (caddr_t)header, header_size, (off_t)0,
UIO_SYSSPACE, IO_NOCACHE|IO_NODELOCKED|IO_UNIT, cred, (int *) 0, core_proc);
kmem_free(kernel_map, header, header_size);
+
+ if ((coredump_flags & COREDUMP_FULLFSYNC) && error == 0)
+ error = VNOP_IOCTL(vp, F_FULLFSYNC, (caddr_t)NULL, 0, ctx);
out:
error1 = vnode_close(vp, FWRITE, ctx);
out2:
return (error);
}
+
+#else /* CONFIG_COREDUMP */
+
+/* When core dumps aren't needed, no need to compile this file at all */
+
+#error assertion failed: this section is not compiled
+
+#endif /* CONFIG_COREDUMP */
projects / apple / xnu.git / blobdiff