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Fix stack overruns

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This commit is contained in:
Justin C. Miller
2019-04-16 23:39:52 -07:00
parent 6302e8b73a
commit 910b5116f4
5 changed files with 22 additions and 20 deletions
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2
src/kernel/boot.s
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@@ -48,7 +48,7 @@ interrupts_disable:
section .bss section .bss
align 0x100 align 0x100
idle_stack_begin: idle_stack_begin:
resb 0x1000 ; 4KiB stack space resb 0x4000 ; 16KiB stack space
global idle_stack_end global idle_stack_end
idle_stack_end: idle_stack_end:

6
src/kernel/interrupts.cpp
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@@ -184,7 +184,10 @@ isr_handler(cpu_state *regs)
uintptr_t cr2 = 0; uintptr_t cr2 = 0;
__asm__ __volatile__ ("mov %%cr2, %0" : "=r"(cr2)); __asm__ __volatile__ ("mov %%cr2, %0" : "=r"(cr2));
if (!page_manager::get()->fault_handler(cr2)) { if ((regs->errorcode & 0x9) == 0 &&
page_manager::get()->fault_handler(cr2))
break;
cons->set_color(11); cons->set_color(11);
cons->puts("\nPage Fault:\n"); cons->puts("\nPage Fault:\n");
cons->set_color(); cons->set_color();
@@ -200,7 +203,6 @@ isr_handler(cpu_state *regs)
print_stacktrace(2); print_stacktrace(2);
_halt(); _halt();
} }
}
break; break;
case isr::isrTimer: case isr::isrTimer:

2
src/libraries/kutil/include/kutil/logger.h
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@@ -110,7 +110,7 @@ void fatal(area_t area, const char *fmt, ...);
} // namespace log } // namespace log
namespace logs { namespace logs {
#define LOG(name, lvl) extern log::area_t name; #define LOG(name, lvl) extern const log::area_t name;
#include "log_areas.inc" #include "log_areas.inc"
#undef LOG #undef LOG
} // namespace logs } // namespace logs

2
src/libraries/kutil/include/kutil/slab_allocator.h
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@@ -29,7 +29,7 @@ public:
/// \returns An allocated element /// \returns An allocated element
inline item_type * pop() inline item_type * pop()
{ {
if (this->empty()) allocate(); if (this->empty()) this->allocate();
kassert(!this->empty(), "Slab allocator is empty after allocate()"); kassert(!this->empty(), "Slab allocator is empty after allocate()");
item_type *item = this->pop_front(); item_type *item = this->pop_front();
kutil::memset(item, 0, sizeof(item_type)); kutil::memset(item, 0, sizeof(item_type));

4
src/libraries/kutil/logger.cpp
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@@ -7,7 +7,7 @@
namespace kutil { namespace kutil {
namespace logs { namespace logs {
#define LOG(name, lvl) \ #define LOG(name, lvl) \
log::area_t name = #name ## _h; \ const log::area_t name = #name ## _h; \
const char * name ## _name = #name; const char * name ## _name = #name;
#include "log_areas.inc" #include "log_areas.inc"
#undef LOG #undef LOG
@@ -19,7 +19,7 @@ using kutil::memset;
using kutil::memcpy; using kutil::memcpy;
logger *logger::s_log = nullptr; logger *logger::s_log = nullptr;
const char *logger::s_level_names[] = {"", "debug", " info", " warn", "error", "fatal"}; const char *logger::s_level_names[] = {"", "debug", "info", "warn", "error", "fatal"};
logger::logger() : logger::logger() :
m_buffer(nullptr, 0), m_buffer(nullptr, 0),