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gh-135953: Profile a module or script with sampling profiler (#136777)

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László Kiss Kollár 2025-08-11 08:36:43 -03:00 • committed by GitHub
parent 70218b4008
commit 4497ad409e
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5 changed files with 864 additions and 79 deletions
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34
Python/remote_debug.h
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@ -50,9 +50,11 @@ extern "C" {
# include <mach-o/fat.h>
# include <mach-o/loader.h>
# include <mach-o/nlist.h>
# include <mach/error.h>
# include <mach/mach.h>
# include <mach/mach_vm.h>
# include <mach/machine.h>
# include <mach/task_info.h>
# include <sys/mman.h>
# include <sys/proc.h>
# include <sys/sysctl.h>
@ -1053,18 +1055,38 @@ _Py_RemoteDebug_ReadRemoteMemory(proc_handle_t *handle, uintptr_t remote_address
(mach_vm_size_t*)&result);
if (kr != KERN_SUCCESS) {
switch (kr) {
switch (err_get_code(kr)) {
case KERN_PROTECTION_FAILURE:
PyErr_Format(PyExc_PermissionError,
"Memory protection failure reading from PID %d at address "
"0x%lx (size %zu): insufficient permissions",
handle->pid, remote_address, len);
break;
case KERN_INVALID_ARGUMENT:
PyErr_Format(PyExc_ValueError,
"Invalid argument to mach_vm_read_overwrite for PID %d at "
"address 0x%lx (size %zu)",
handle->pid, remote_address, len);
case KERN_INVALID_ARGUMENT: {
// Perform a task_info check to see if the invalid argument is due
// to the process being terminated
task_basic_info_data_t task_basic_info;
mach_msg_type_number_t task_info_count = TASK_BASIC_INFO_COUNT;
kern_return_t task_valid_check = task_info(handle->task, TASK_BASIC_INFO,
(task_info_t)&task_basic_info,
&task_info_count);
if (task_valid_check == KERN_INVALID_ARGUMENT) {
PyErr_Format(PyExc_ProcessLookupError,
"Process %d is no longer accessible (process terminated)",
handle->pid);
} else {
PyErr_Format(PyExc_ValueError,
"Invalid argument to mach_vm_read_overwrite for PID %d at "
"address 0x%lx (size %zu) - check memory permissions",
handle->pid, remote_address, len);
}
break;
}
case KERN_NO_SPACE:
case KERN_MEMORY_ERROR:
PyErr_Format(PyExc_ProcessLookupError,
"Process %d memory space no longer available (process terminated)",
handle->pid);
break;
default:
PyErr_Format(PyExc_RuntimeError,