8adcd665fb
This patch enables the user land to use the CPU's single stepping mode on x86_32 platforms. It is needed to enable the use of GDB monitor for user-level debugging. Was: 'foc_single_step_x86.patch'
172 lines
3.3 KiB
C++
172 lines
3.3 KiB
C++
/* IA32/AMD64 specific */
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INTERFACE[ia32,amd64]:
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#include "idt_init.h"
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EXTENSION class Config
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{
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public:
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enum
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{
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// can access user memory directly
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Access_user_mem = Access_user_mem_direct,
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/// Timer vector used with APIC timer or IOAPIC
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Apic_timer_vector = APIC_IRQ_BASE + 0,
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};
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static unsigned scheduler_irq_vector;
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enum Scheduler_config
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{
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SCHED_PIT = 0,
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SCHED_RTC,
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SCHED_APIC,
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SCHED_HPET,
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#ifdef CONFIG_SCHED_PIT
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Scheduler_mode = SCHED_PIT,
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Scheduler_granularity = 1000U,
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Default_time_slice = 10 * Scheduler_granularity,
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#endif
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#ifdef CONFIG_ONE_SHOT
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Scheduler_one_shot = true,
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#else
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Scheduler_one_shot = false,
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#endif
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#ifdef CONFIG_SCHED_RTC
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Scheduler_mode = SCHED_RTC,
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# ifdef CONFIG_SLOW_RTC
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Scheduler_granularity = 15625U,
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# else
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Scheduler_granularity = 976U,
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# endif
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Default_time_slice = 10 * Scheduler_granularity,
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#endif
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#ifdef CONFIG_SCHED_APIC
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Scheduler_mode = SCHED_APIC,
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# ifdef CONFIG_ONE_SHOT
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Scheduler_granularity = 1U,
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Default_time_slice = 10000 * Scheduler_granularity,
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# else
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Scheduler_granularity = 1000U,
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Default_time_slice = 10 * Scheduler_granularity,
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# endif
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#endif
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#ifdef CONFIG_SCHED_HPET
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Scheduler_mode = SCHED_HPET,
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Scheduler_granularity = 1000U,
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Default_time_slice = 10 * Scheduler_granularity,
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#endif
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};
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enum
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{
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Pic_prio_modify = true,
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#ifdef CONFIG_SYNC_TSC
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Kip_timer_uses_rdtsc = true,
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#else
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Kip_timer_uses_rdtsc = false,
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#endif
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};
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static bool apic;
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#ifdef CONFIG_WATCHDOG
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static bool watchdog;
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#else
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static const bool watchdog = false;
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#endif
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// static const bool hlt_works_ok = false;
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static bool hlt_works_ok;
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#ifdef CONFIG_USER_SINGLE_STEP
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static const bool user_single_step = true;
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#else
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static const bool user_single_step = false;
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#endif
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// the default uart to use for serial console
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static const unsigned default_console_uart = 1;
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static const unsigned default_console_uart_baudrate = 115200;
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static char const char_micro;
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static bool found_vmware;
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enum {
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Is_ux = 0,
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};
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};
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IMPLEMENTATION[ia32,amd64]:
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#include <cstring>
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bool Config::hlt_works_ok = true;
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bool Config::found_vmware = false;
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char const Config::char_micro = '\265';
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bool Config::apic = false;
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unsigned Config::scheduler_irq_vector;
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#ifdef CONFIG_WATCHDOG
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bool Config::watchdog = false;
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#endif
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const char *const Config::kernel_warn_config_string =
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#ifdef CONFIG_SCHED_RTC
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" CONFIG_SCHED_RTC is on\n"
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#endif
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#ifndef CONFIG_INLINE
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" CONFIG_INLINE is off\n"
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#endif
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#ifndef CONFIG_NDEBUG
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" CONFIG_NDEBUG is off\n"
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#endif
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#ifndef CONFIG_NO_FRAME_PTR
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" CONFIG_NO_FRAME_PTR is off\n"
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#endif
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#ifdef CONFIG_LIST_ALLOC_SANITY
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" CONFIG_LIST_ALLOC_SANITY is on\n"
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#endif
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#ifdef CONFIG_BEFORE_IRET_SANITY
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" CONFIG_BEFORE_IRET_SANITY is on\n"
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#endif
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#ifdef CONFIG_FINE_GRAINED_CPUTIME
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" CONFIG_FINE_GRAINED_CPUTIME is on\n"
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#endif
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#ifdef CONFIG_JDB_ACCOUNTING
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" CONFIG_JDB_ACCOUNTING is on\n"
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#endif
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"";
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IMPLEMENT FIASCO_INIT
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void
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Config::init_arch()
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{
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#ifdef CONFIG_WATCHDOG
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if (Koptions::o()->opt(Koptions::F_watchdog))
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{
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watchdog = true;
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apic = true;
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}
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#endif
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if (Koptions::o()->opt(Koptions::F_nohlt))
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hlt_works_ok = false;
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if (Koptions::o()->opt(Koptions::F_apic))
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apic = true;
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if (Scheduler_mode == SCHED_APIC)
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apic = true;
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}
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