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feat: ft_write

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lohhiiccc 2026-06-12 13:41:13 +02:00
parent 274cf8281e
commit 6285fdd11b
3 changed files with 26 additions and 3 deletions
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5
Makefile
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@ -1,5 +1,5 @@
NASM=nasm NASM=nasm
NASMFLAGS=-f elf64 -g -F dwarf NASMFLAGS=-f elf64 -g -F dwarf -D PIC
AR=ar AR=ar
ARFLAGS=rcs ARFLAGS=rcs
CC=gcc CC=gcc
@ -12,7 +12,8 @@ SHARED_LIB=lib$(LIB_NAME).so
SRCS=$(SRC_DIR)/ft_strlen.asm \ SRCS=$(SRC_DIR)/ft_strlen.asm \
$(SRC_DIR)/ft_strcpy.asm \ $(SRC_DIR)/ft_strcpy.asm \
$(SRC_DIR)/ft_strcmp.asm $(SRC_DIR)/ft_strcmp.asm \
$(SRC_DIR)/ft_write.asm
OBJS=$(patsubst $(SRC_DIR)/%.asm,$(OBJ_DIR)/%.o,$(SRCS)) OBJS=$(patsubst $(SRC_DIR)/%.asm,$(OBJ_DIR)/%.o,$(SRCS))
DEPS=$(OBJS:.o=.d) DEPS=$(OBJS:.o=.d)

21
src/ft_write.asm Normal file
View file

@ -0,0 +1,21 @@
global ft_write
extern __errno_location
section .text
ft_write:
mov eax, 1
syscall
; if rax >= 0
test rax, rax
jns .done
neg rax
mov edi, eax
call __errno_location wrt ..plt
mov dword [rax], edi
mov eax, -1
.done:
ret

3
src/mylib.h
View file

@ -1,7 +1,7 @@
#ifndef MYLIB_H #ifndef MYLIB_H
#define MYLIB_H #define MYLIB_H
#include <string.h> #include <sys/types.h>
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { extern "C" {
#endif #endif
@ -9,6 +9,7 @@ extern "C" {
size_t ft_strlen(char *str); size_t ft_strlen(char *str);
char *ft_strcpy(char *dest, const char *src); char *ft_strcpy(char *dest, const char *src);
int ft_strcmp (const char *p1, const char *p2); int ft_strcmp (const char *p1, const char *p2);
ssize_t ft_write(int fildes, const void *buf, size_t nbyte);
#ifdef __cplusplus #ifdef __cplusplus
} }