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Capture new PID from fork #7

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Capture new PID from fork #7

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71b0fee
Capture new PID from fork (nice for debugging)
Mar 22, 2020
c38df12
Disable warning of unused variable.
Mar 23, 2020
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13 changes: 11 additions & 2 deletions p-allocator.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -6,12 +6,19 @@ extern uint8_t end[];
uint8_t* heap_top;
uint8_t* stack_bottom;

// turn off optimization to facilitate debugging of forking new copies
#pragma GCC push_options
#pragma GCC optimize ("O0")

void process_main() {
sys_kdisplay(KDISPLAY_MEMVIEWER);

// Fork three new copies. (But ignore failures.)
(void) sys_fork();
(void) sys_fork();
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-variable"
pid_t pid1 = sys_fork();
pid_t pid2 = sys_fork();
#pragma GCC diagnostic pop

pid_t p = sys_getpid();
srand(p);
Expand Down Expand Up @@ -48,3 +55,5 @@ void process_main() {
sys_yield();
}
}

#pragma GCC pop_options