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Adds eprintf (printf but print to stderr)

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Kwarde
2025-07-26 00:57:30 +02:00
parent 8a18695328
commit 69d7a52c62
2 changed files with 23 additions and 0 deletions
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7
src/console.asm
View File

@@ -16,6 +16,7 @@ section .text
global print global print
global puts global puts
global printf global printf
global eprintf
;----- print(*str[]) -----; ;----- print(*str[]) -----;
; Prints given string to the console to stdout ; Prints given string to the console to stdout
@@ -101,6 +102,12 @@ printf:
mov rax, FD_stdout mov rax, FD_stdout
jmp __INTERNAL_fmt jmp __INTERNAL_fmt
;----- eprintf(*format[], ...) -----;
; Same as printf, except prints to stderr
eprintf:
mov rax, FD_stderr
jmp __INTERNAL_fmt
;----- __INTERNAL_fmt(*format[], ...) -----; ;----- __INTERNAL_fmt(*format[], ...) -----;
; See printf description above, + ; See printf description above, +
; 1) Return value can be amount of printed characters or -errno (eg if bad FD was passed, -EBADF is returned) ; 1) Return value can be amount of printed characters or -errno (eg if bad FD was passed, -EBADF is returned)

16
src/tests.asm
View File

@@ -73,6 +73,7 @@ extern umask_get
extern print extern print
extern puts extern puts
extern printf extern printf
extern eprintf
;string.asm ;string.asm
extern strlen extern strlen
extern strcpy extern strcpy
@@ -114,6 +115,7 @@ section .rodata
TEST_print equ 1 TEST_print equ 1
TEST_puts equ 1 TEST_puts equ 1
TEST_printf equ 1 TEST_printf equ 1
TEST_eprintf equ 1
;string.asm_ ;string.asm_
TEST_strlen equ 1 TEST_strlen equ 1
TEST_strcpy equ 1 TEST_strcpy equ 1
@@ -249,6 +251,10 @@ section .rodata
printfStr3 db "%p | %16p | %016p | %#16p | %#016p\n%p | %016p | %16p | %#016p | %#16p\n",EOS printfStr3 db "%p | %16p | %016p | %#16p | %#016p\n%p | %016p | %16p | %#016p | %#16p\n",EOS
addTest(printf_null, "printf(''NULL pointer (%%s): %s\n'', itoa(128, 9, 0, 0))") addTest(printf_null, "printf(''NULL pointer (%%s): %s\n'', itoa(128, 9, 0, 0))")
printfStr4 db "NULL pointer (%%s): %s\n",EOS printfStr4 db "NULL pointer (%%s): %s\n",EOS
;eprintf()
addTestHeader(_eprintf, "eprintf")
addTest(eprintf1, "eprintf(''This is not an error :-)\n'')")
eprintfStr1 db "This is not an error :-)\n",EOS
; STRINGS FOR USE IN STRING FUNCTIOns ; STRINGS FOR USE IN STRING FUNCTIOns
str1 db "Hello, World!",EOS;13 str1 db "Hello, World!",EOS;13
str2 db "Hello, world!",EOS;13 str2 db "Hello, world!",EOS;13
@@ -826,6 +832,16 @@ _start:
assert_eq(26) assert_eq(26)
%endif %endif
;--- eprintf()
%if TEST_eprintf
printTestHeader(_eprintf)
printTest(eprintf1)
lea rdi, [rel eprintfStr1]
call eprintf
assert_eq(25)
%endif
;;; ;;;
;;; STRINGS FOR STRING FUNCTIONS ;;; STRINGS FOR STRING FUNCTIONS
;;; ;;;