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Make CPU code thread safe

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This commit is contained in:
Valentin Haudiquet
2023-10-08 16:40:03 +02:00
parent afc68c1c96
commit c878dee7e0
4 changed files with 23 additions and 1 deletions
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12
src/gdbstub/gdbstub.c
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@@ -183,6 +183,9 @@ void gdbstub_thread_gdb()
// g : read all registers -> send back all registers
char resp[32 * 8 + 8 + 1] = {0};
// Obtain CPU0 mutex
pthread_mutex_lock(cpu0_mutex);
// All general purpose registers in host byte order as chars
for(size_t i = 0; i < 32; i++)
{
@@ -194,6 +197,9 @@ void gdbstub_thread_gdb()
uint32_t pc = htonl(cpu0->pc);
snprintf(resp + 32 * 8, 9, "%08x", pc);
// Let go of CPU0 mutex
pthread_mutex_unlock(cpu0_mutex);
// Final packet size, send packet
size_t size = 32 * 8 + 8;
gdbstub_send_packet(resp, size);
@@ -202,6 +208,9 @@ void gdbstub_thread_gdb()
{
// G : write all registers -> read and set all registers
// Obtain CPU0 mutex
pthread_mutex_lock(cpu0_mutex);
// All general purpose registers in host byte order as chars
for(size_t i = 1; i < 32; i++)
{
@@ -218,6 +227,9 @@ void gdbstub_thread_gdb()
pc = ntohl(pc);
cpu0->pc = pc;
// Let go of CPU0 Mutex
pthread_mutex_unlock(cpu0_mutex);
gdbstub_send_packet("OK", 2);
}
else if(packet[0] == 'm')