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kern: svcOutputDebugString, svcGetThreadPriority, svcGetThreadId

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This commit is contained in:
Michael Scire 2020-07-09 13:07:38 -07:00
parent 1a0696f8a3
commit a2eb93fde8
4 changed files with 93 additions and 15 deletions
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3
libraries/libmesosphere/include/mesosphere/kern_debug_log.hpp
View file

@ -15,6 +15,7 @@
*/
#pragma once
#include <mesosphere/kern_common.hpp>
#include <mesosphere/svc/kern_svc_k_user_pointer.hpp>
namespace ams::kern {
@ -26,6 +27,8 @@ namespace ams::kern {
static NOINLINE void Printf(const char *format, ...) __attribute__((format(printf, 1, 2)));
static NOINLINE void VPrintf(const char *format, ::std::va_list vl);
static NOINLINE Result PrintUserString(ams::kern::svc::KUserPointer<const char *> user_str, size_t len);
};
}

66
libraries/libmesosphere/source/kern_debug_log.cpp
View file

@ -404,18 +404,52 @@ namespace ams::kern {
char g_print_buffer[0x400];
void PutString(const char *str) {
if (g_initialized_impl) {
while (*str) {
const char c = *(str++);
if (c == '\n') {
KDebugLogImpl::PutChar('\r');
}
KDebugLogImpl::PutChar(c);
}
KDebugLogImpl::Flush();
/* Only print if the implementation is initialized. */
if (!g_initialized_impl) {
return;
}
while (*str) {
/* Get a character. */
const char c = *(str++);
/* Print the character. */
if (c == '\n') {
KDebugLogImpl::PutChar('\r');
}
KDebugLogImpl::PutChar(c);
}
KDebugLogImpl::Flush();
}
#if defined(MESOSPHERE_ENABLE_DEBUG_PRINT)
Result PutUserString(ams::kern::svc::KUserPointer<const char *> user_str, size_t len) {
/* Only print if the implementation is initialized. */
if (!g_initialized_impl) {
return ResultSuccess();
}
for (size_t i = 0; i < len; ++i) {
/* Get a character. */
char c;
R_TRY(user_str.CopyArrayElementTo(std::addressof(c), i));
/* Print the character. */
if (c == '\n') {
KDebugLogImpl::PutChar('\r');
}
KDebugLogImpl::PutChar(c);
}
KDebugLogImpl::Flush();
return ResultSuccess();
}
#endif
}
@ -455,4 +489,18 @@ namespace ams::kern {
VSNPrintfImpl(dst, dst_size, format, vl);
}
Result KDebugLog::PrintUserString(ams::kern::svc::KUserPointer<const char *> user_str, size_t len) {
/* If printing is enabled, print the user string. */
#if defined(MESOSPHERE_ENABLE_DEBUG_PRINT)
if (KTargetSystem::IsDebugLoggingEnabled()) {
KScopedInterruptDisable di;
KScopedSpinLock lk(g_debug_log_lock);
R_TRY(PutUserString(user_str, len));
}
#endif
return ResultSuccess();
}
}

13
libraries/libmesosphere/source/svc/kern_svc_debug_string.cpp
View file

@ -21,20 +21,29 @@ namespace ams::kern::svc {
namespace {
Result OutputDebugString(KUserPointer<const char *> debug_str, size_t len) {
/* Succeed immediately if there's nothing to output. */
R_SUCCEED_IF(len == 0);
/* Ensure that the data being output is in range. */
R_UNLESS(GetCurrentProcess().GetPageTable().Contains(KProcessAddress(debug_str.GetUnsafePointer()), len), svc::ResultInvalidCurrentMemory());
/* Output the string. */
return KDebugLog::PrintUserString(debug_str, len);
}
}
/* ============================= 64 ABI ============================= */
Result OutputDebugString64(KUserPointer<const char *> debug_str, ams::svc::Size len) {
MESOSPHERE_PANIC("Stubbed SvcOutputDebugString64 was called.");
return OutputDebugString(debug_str, len);
}
/* ============================= 64From32 ABI ============================= */
Result OutputDebugString64From32(KUserPointer<const char *> debug_str, ams::svc::Size len) {
MESOSPHERE_PANIC("Stubbed SvcOutputDebugString64From32 was called.");
return OutputDebugString(debug_str, len);
}
}

26
libraries/libmesosphere/source/svc/kern_svc_thread.cpp
View file

@ -21,7 +21,25 @@ namespace ams::kern::svc {
namespace {
Result GetThreadPriority(int32_t *out_priority, ams::svc::Handle thread_handle) {
/* Get the thread from its handle. */
KScopedAutoObject thread = GetCurrentProcess().GetHandleTable().GetObject<KThread>(thread_handle);
R_UNLESS(thread.IsNotNull(), svc::ResultInvalidHandle());
/* Get the thread's priority. */
*out_priority = thread->GetPriority();
return ResultSuccess();
}
Result GetThreadId(uint64_t *out_thread_id, ams::svc::Handle thread_handle) {
/* Get the thread from its handle. */
KScopedAutoObject thread = GetCurrentProcess().GetHandleTable().GetObject<KThread>(thread_handle);
R_UNLESS(thread.IsNotNull(), svc::ResultInvalidHandle());
/* Get the thread's id. */
*out_thread_id = thread->GetId();
return ResultSuccess();
}
}
@ -44,7 +62,7 @@ namespace ams::kern::svc {
}
Result GetThreadPriority64(int32_t *out_priority, ams::svc::Handle thread_handle) {
MESOSPHERE_PANIC("Stubbed SvcGetThreadPriority64 was called.");
return GetThreadPriority(out_priority, thread_handle);
}
Result SetThreadPriority64(ams::svc::Handle thread_handle, int32_t priority) {
@ -60,7 +78,7 @@ namespace ams::kern::svc {
}
Result GetThreadId64(uint64_t *out_thread_id, ams::svc::Handle thread_handle) {
MESOSPHERE_PANIC("Stubbed SvcGetThreadId64 was called.");
return GetThreadId(out_thread_id, thread_handle);
}
Result GetDebugFutureThreadInfo64(ams::svc::lp64::LastThreadContext *out_context, uint64_t *thread_id, ams::svc::Handle debug_handle, int64_t ns) {
@ -98,7 +116,7 @@ namespace ams::kern::svc {
}
Result GetThreadPriority64From32(int32_t *out_priority, ams::svc::Handle thread_handle) {
MESOSPHERE_PANIC("Stubbed SvcGetThreadPriority64From32 was called.");
return GetThreadPriority(out_priority, thread_handle);
}
Result SetThreadPriority64From32(ams::svc::Handle thread_handle, int32_t priority) {
@ -114,7 +132,7 @@ namespace ams::kern::svc {
}
Result GetThreadId64From32(uint64_t *out_thread_id, ams::svc::Handle thread_handle) {
MESOSPHERE_PANIC("Stubbed SvcGetThreadId64From32 was called.");
return GetThreadId(out_thread_id, thread_handle);
}
Result GetDebugFutureThreadInfo64From32(ams::svc::ilp32::LastThreadContext *out_context, uint64_t *thread_id, ams::svc::Handle debug_handle, int64_t ns) {