mirror of
https://github.com/Fennix-Project/Kernel.git
synced 2025-05-28 15:34:33 +00:00
61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
#include <types.h>
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#include <debug.h>
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#include "../kernel.h"
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#ifndef STACK_CHK_GUARD_VALUE
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#if UINTPTR_MAX == UINT32_MAX
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#define STACK_CHK_GUARD_VALUE 0x25F6CC8D
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#else
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#define STACK_CHK_GUARD_VALUE 0xBADFE2EC255A8572
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#endif
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#endif
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__attribute__((weak)) uintptr_t __stack_chk_guard = 0;
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__attribute__((weak)) uintptr_t __stack_chk_guard_init(void)
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{
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return STACK_CHK_GUARD_VALUE;
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}
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static void __attribute__((constructor, no_stack_protector)) __construct_stk_chk_guard()
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{
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if (__stack_chk_guard == 0)
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__stack_chk_guard = __stack_chk_guard_init();
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}
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// https://opensource.apple.com/source/xnu/xnu-1504.7.4/libkern/stack_protector.c.auto.html
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// static void __guard_setup(void) __attribute__((constructor));
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// static void __guard_setup(void)
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// {
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// read_random(__stack_chk_guard, sizeof(__stack_chk_guard));
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// }
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__attribute__((weak, noreturn, no_stack_protector)) void __stack_chk_fail(void)
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{
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TaskingPanic();
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error("Stack smashing detected!");
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KPrint("\eFF0000Stack smashing detected!");
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#if defined(__amd64__) || defined(__i386__)
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while (1)
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asmv("cli; hlt");
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#elif defined(__aarch64__)
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asmv("wfe");
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#endif
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}
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// https://github.com/gcc-mirror/gcc/blob/master/libssp/ssp.c
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__attribute__((weak, noreturn, no_stack_protector)) void __chk_fail(void)
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{
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TaskingPanic();
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error("Buffer overflow detected!");
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KPrint("\eFF0000Buffer overflow detected!");
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#if defined(__amd64__) || defined(__i386__)
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while (1)
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asmv("cli; hlt");
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#elif defined(__aarch64__)
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asmv("wfe");
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#endif
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}
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