Updated libc

This commit is contained in:
Alex
2022-12-07 13:53:08 +02:00
parent bc92258a5f
commit 2b57c3126a
28 changed files with 360 additions and 65 deletions

8
libs/Makefile Normal file
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@ -0,0 +1,8 @@
build:
cp include/* ../out/system/include
make --quiet -C libgcc build
make --quiet -C libssp build
clean:
make -C libgcc clean
make -C libssp clean

6
libs/include/ssp.h Normal file
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#ifndef __FENNIX_LIBS_SSP_H__
#define __FENNIX_LIBS_SSP_H__
#include <types.h>
#endif // !__FENNIX_LIBS_SSP_H__

44
libs/libgcc/Makefile Normal file
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# Config file
include ../../../Makefile.conf
NAME=gcc
OBJECT_NAME=lib$(NAME).a
OUTPUT_DIR=../../out/system/lib/
CC = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)gcc
AR = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)ar
NASM = /usr/bin/nasm
C_SOURCES = $(shell find ./ -type f -name '*.c')
S_SOURCES = $(shell find ./ -type f -name '*.s')
ASM_SOURCES = $(shell find ./ -type f -name '*.asm')
OBJ = ${C_SOURCES:.c=.o} ${ASM_SOURCES:.asm=.o} ${S_SOURCES:.s=.o}
INCLUDE_DIR = ../include
ifeq ($(OSARCH), amd64)
ASM_ARCH := elf64
else ifeq ($(OSARCH), i686)
ASM_ARCH := elf32
endif
CFLAGS := -fPIC -I$(INCLUDE_DIR)
build: $(OBJECT_NAME)
$(OBJECT_NAME): $(OBJ)
$(AR) rcs $(OUTPUT_DIR)$@ $(OBJ)
%.o: %.c $(HEADERS) $(HEADERS2)
$(CC) $(CFLAGS) -std=c17 -c $< -o $@
%.o: %.cpp $(HEADERS) $(HEADERS2)
$(CC) $(CFLAGS) -std=c++20 -c $< -o $@
%.o: %.asm
$(NASM) $< -f $(ASM_ARCH) -o $@
clean:

0
libs/libgcc/cxa.cpp Normal file
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44
libs/libssp/Makefile Normal file
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# Config file
include ../../../Makefile.conf
NAME=ssp
OBJECT_NAME=lib$(NAME).a
OUTPUT_DIR=../../out/system/lib/
CC = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)gcc
AR = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)ar
NASM = /usr/bin/nasm
C_SOURCES = $(shell find ./ -type f -name '*.c')
S_SOURCES = $(shell find ./ -type f -name '*.s')
ASM_SOURCES = $(shell find ./ -type f -name '*.asm')
OBJ = ${C_SOURCES:.c=.o} ${ASM_SOURCES:.asm=.o} ${S_SOURCES:.s=.o}
INCLUDE_DIR = ../include
ifeq ($(OSARCH), amd64)
ASM_ARCH := elf64
else ifeq ($(OSARCH), i686)
ASM_ARCH := elf32
endif
CFLAGS := -fPIC -I$(INCLUDE_DIR)
build: $(OBJECT_NAME)
$(OBJECT_NAME): $(OBJ)
$(AR) rcs $(OUTPUT_DIR)$@ $(OBJ)
%.o: %.c $(HEADERS) $(HEADERS2)
$(CC) $(CFLAGS) -std=c17 -c $< -o $@
%.o: %.cpp $(HEADERS) $(HEADERS2)
$(CC) $(CFLAGS) -std=c++20 -c $< -o $@
%.o: %.asm
$(NASM) $< -f $(ASM_ARCH) -o $@
clean:

33
libs/libssp/ssp.c Normal file
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#ifndef STACK_CHK_GUARD_VALUE
#if UINTPTR_MAX == UINT32_MAX
#define STACK_CHK_GUARD_VALUE 0xDEAD57AC
#else
#define STACK_CHK_GUARD_VALUE 0xDEAD57AC00000000
#endif
#endif
__UINTPTR_TYPE__ __stack_chk_guard = 0;
static void __attribute__((constructor, no_stack_protector)) __guard_setup(void)
{
if (__stack_chk_guard == 0)
__stack_chk_guard = STACK_CHK_GUARD_VALUE;
}
__attribute__((weak, noreturn, no_stack_protector)) void __stack_chk_fail(void)
{
const char *msg = "Stack smashing detected";
__asm__ __volatile__("syscall"
:
: "a"(0), "D"(0x57AC)
: "rcx", "r11", "memory");
}
__attribute__((weak, noreturn, no_stack_protector)) void __chk_fail(void)
{
const char *msg = "Buffer overflow detected";
__asm__ __volatile__("syscall"
:
: "a"(0), "D"(0xF700)
: "rcx", "r11", "memory");
}