FM / tapset

/usr/share/systemtap/tapset

Name	Size	Mode	Actions
arm/	-	0755	rm
arm64/	-	0755	rm
bpf/	-	0755	rm
dyninst/	-	0755	rm
i386/	-	0755	rm
ia64/	-	0755	rm
linux/	-	0755	rm
mips/	-	0755	rm
powerpc/	-	0755	rm
riscv/	-	0755	rm
s390/	-	0755	rm
x86_64/	-	0755	rm
ansi.stp	4178	0644	edit dl rm
argv.stp	2721	0644	edit dl rm
choose_defined.stpm	208	0644	edit dl rm
container_of.stpm	235	0644	edit dl rm
context.stp	6103	0644	edit dl rm
errno.stp	9118	0644	edit dl rm
floatingpoint.stp	6936	0644	edit dl rm
indent-default.stp	59	0644	edit dl rm
indent.stp	4590	0644	edit dl rm
init.stp	269	0644	edit dl rm
input.stp	263	0644	edit dl rm
java.stp	1346	0644	edit dl rm
libperl5.26.3-64.stp	1339	0644	edit dl rm
libpython2.7-64.stp	522	0644	edit dl rm
livepatch.stp	3006	0644	edit dl rm
logging.stp	4132	0644	edit dl rm
macros.stpm	562	0644	edit dl rm
null.stp	17	0644	edit dl rm
offsetof.stpm	183	0644	edit dl rm
oneshot.stp	38	0644	edit dl rm
pn.stp	1588	0644	edit dl rm
print_stats.stpm	1719	0644	edit dl rm
private30.stpm	80	0644	edit dl rm
prometheus.stp	129	0644	edit dl rm
prometheus.stpm	8380	0644	edit dl rm
python.stp	474	0644	edit dl rm
python2.stp	29435	0644	edit dl rm
python3.stp	36655	0644	edit dl rm
queue_stats.stp	9487	0644	edit dl rm
random.stp	432	0644	edit dl rm
README	371	0644	edit dl rm
regex.stp	4107	0644	edit dl rm
registers.stp	11081	0644	edit dl rm
sizeof.stpm	212	0644	edit dl rm
speculative.stp	1746	0644	edit dl rm
sreg_arch.stpm	263	0644	edit dl rm
stap_staticmarkers.stp	9670	0644	edit dl rm
stopwatch.stp	3063	0644	edit dl rm
string.stp	7514	0644	edit dl rm
switchfile.stp	612	0644	edit dl rm
system.stp	593	0644	edit dl rm
this.stp	160	0644	edit dl rm
timers.stp	924	0644	edit dl rm
tls.stp	8099	0644	edit dl rm
tokenize.stp	2124	0644	edit dl rm
try_assign.stpm	768	0644	edit dl rm
type_defined.stpm	374	0644	edit dl rm
tzinfo.stp	930	0644	edit dl rm
uconversions-guru.stp	6078	0644	edit dl rm
uconversions.stp	36640	0644	edit dl rm

Edit: /usr/share/systemtap/tapset/uconversions-guru.stp (6078B)

/**
 * sfunction set_user_string - Writes a string to user memory
 * @addr: The user address to write the string to
 * @val: The string which is to be written
 *
 * Description: Writes the given string to a given user memory address.
 * Reports an error when writing to the given address fails.
 * Requires the use of guru mode (-g).
 */
function set_user_string (addr:long, val:string) %{ /* guru */
  __label__ deref_fault;
  store_uderef_string (STAP_ARG_val, STAP_ARG_addr, MAXSTRINGLEN);
  if (0) {
deref_fault: /* branched to from store_deref_string() */
    snprintf (CONTEXT->error_buffer, sizeof(CONTEXT->error_buffer),
        "user string copy fault at 0x%lx [man error::fault]", (uintptr_t) STAP_ARG_addr);
    CONTEXT->last_error = CONTEXT->error_buffer;
  }
%}

/**
 * sfunction set_user_string_n - Writes a string of given length to user memory
 * @addr: The user address to write the string to
 * @n: The maximum length of the string
 * @val: The string which is to be written
 *
 * Description: Writes the given string up to a maximum given length to a given
 * user memory address. Reports an error on string copy fault.
 * Requires the use of guru mode (-g).
 */
function set_user_string_n (addr:long, n:long, val:string) %{ /* guru */
  __label__ deref_fault;
  int64_t len = clamp_t(int64_t, STAP_ARG_n + 1, 1, MAXSTRINGLEN);
  store_uderef_string (STAP_ARG_val, STAP_ARG_addr, len);
  if (0) {
deref_fault: /* branched to from store_deref_string() */
    snprintf (CONTEXT->error_buffer, sizeof(CONTEXT->error_buffer),
        "user string copy fault at 0x%lx [man error::fault]", (uintptr_t) STAP_ARG_addr);
    CONTEXT->last_error = CONTEXT->error_buffer;
  }
%}

/**
 * sfunction set_user_string_arg - Writes a string to user memory.
 * @addr: The user address to write the string to
 * @val: The string which is to be written
 *
 * Description: Writes the given string to a given user memory address.
 * Reports a warning on string copy fault.
 * Requires the use of guru mode (-g).
 */
function set_user_string_arg (addr:long, val:string) { /* guru */
  if (val != user_string_nofault(addr)) {
    try {
      set_user_string_n(addr, strlen(val), val)
    } catch {
      warn(sprintf("unable to write %s to 0x%lx", val, addr))
    }
  }
}

/**
 * sfunction set_user_long - Writes a long value to user memory
 * @addr: The user address to write the long to
 * @val: The long which is to be written
 *
 * Description: Writes the long value to a given user memory address.
 * Reports an error when writing to the given address fails.
 * Requires the use of guru mode (-g).
 */
function set_user_long (addr:long, val:long) %{ /* guru */
  __label__ deref_fault;
  uwrite((long *) (uintptr_t) STAP_ARG_addr, STAP_ARG_val);
  if (0) {
deref_fault: /* branched to from uwrite() */
    snprintf (CONTEXT->error_buffer, sizeof(CONTEXT->error_buffer),
        "user long copy fault at 0x%p [man error::fault]", (void *) (uintptr_t) STAP_ARG_addr);
    CONTEXT->last_error = CONTEXT->error_buffer;
  }
%}

/**
 * sfunction set_user_int - Writes an int value to user memory
 * @addr: The user address to write the int to
 * @val: The int which is to be written
 *
 * Description: Writes the int value to a given user memory address.
 * Reports an error when writing to the given address fails.
 * Requires the use of guru mode (-g).
 */
function set_user_int (addr:long, val:long) %{ /* guru */
  __label__ deref_fault;
  uwrite((int *) (uintptr_t) STAP_ARG_addr, STAP_ARG_val);
  if (0) {
deref_fault: /* branched to from uwrite() */
    snprintf (CONTEXT->error_buffer, sizeof(CONTEXT->error_buffer),
        "user int copy fault at 0x%p [man error::fault]", (void *) (uintptr_t) STAP_ARG_addr);
    CONTEXT->last_error = CONTEXT->error_buffer;
  }
%}

/**
 * sfunction set_user_short - Writes a short value to user memory
 * @addr: The user address to write the short to
 * @val: The short which is to be written
 *
 * Description: Writes the short value to a given user memory address.
 * Reports an error when writing to the given address fails.
 * Requires the use of guru mode (-g).
 */
function set_user_short (addr:long, val:long) %{ /* guru */
  __label__ deref_fault;
  uwrite((short *) (uintptr_t) STAP_ARG_addr, STAP_ARG_val);
  if (0) {
deref_fault: /* branched to from uwrite() */
    snprintf (CONTEXT->error_buffer, sizeof(CONTEXT->error_buffer),
        "user short copy fault at 0x%p [man error::fault]", (void *) (uintptr_t) STAP_ARG_addr);
    CONTEXT->last_error = CONTEXT->error_buffer;
  }
%}

/**
 * sfunction set_user_char - Writes a char value to user memory
 * @addr: The user address to write the char to
 * @val: The char which is to be written
 *
 * Description: Writes the char value to a given user memory address.
 * Reports an error when writing to the given address fails.
 * Requires the use of guru mode (-g).
 */
function set_user_char (addr:long, val:long) %{ /* guru */
  __label__ deref_fault;
  uwrite((char *) (uintptr_t) STAP_ARG_addr, STAP_ARG_val);
  if (0) {
deref_fault: /* branched to from uwrite() */
    snprintf (CONTEXT->error_buffer, sizeof(CONTEXT->error_buffer),
        "user char copy fault at 0x%p [man error::fault]", (void *) (uintptr_t) STAP_ARG_addr);
    CONTEXT->last_error = CONTEXT->error_buffer;
  }
%}

/**
 * sfunction set_user_pointer - Writes a pointer value to user memory.
 * @addr: The user address to write the pointer to
 * @val: The pointer which is to be written
 *
 * Description: Writes the pointer value to a given user memory address.
 * Reports an error when writing to the given address fails.
 * Requires the use of guru mode (-g).
 */
function set_user_pointer (addr:long, val:long) %{ /* guru */
  __label__ deref_fault;
  uwrite((void **) (uintptr_t) STAP_ARG_addr, (uintptr_t)STAP_ARG_val);
  if (0) {
deref_fault: /* branched to from uwrite() */
    snprintf (CONTEXT->error_buffer, sizeof(CONTEXT->error_buffer),
        "user pointer copy fault at 0x%p [man error::fault]", (void *) (uintptr_t) STAP_ARG_addr);
    CONTEXT->last_error = CONTEXT->error_buffer;
  }
%}

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