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misc: Move to standard C11 noreturn

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This commit is contained in:
mintsuki 2021-12-31 10:58:05 +01:00
parent 97eaf2777d
commit 3402b22cb6
17 changed files with 50 additions and 39 deletions
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4
decompressor/main.c
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@ -1,9 +1,9 @@
#include <stdint.h> #include <stdint.h>
#include <stddef.h> #include <stddef.h>
#include <stdnoreturn.h>
#include <tinf.h> #include <tinf.h>
__attribute__((noreturn)) noreturn void entry(uint8_t *compressed_stage2, size_t stage2_size, uint8_t boot_drive, int pxe) {
void entry(uint8_t *compressed_stage2, size_t stage2_size, uint8_t boot_drive, int pxe) {
// The decompressor should decompress compressed_stage2 to address 0x8000. // The decompressor should decompress compressed_stage2 to address 0x8000.
uint8_t *dest = (uint8_t *)0x8000; uint8_t *dest = (uint8_t *)0x8000;

7
stage23/entry.s2.c
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@ -1,3 +1,7 @@
#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
#include <stdnoreturn.h>
#include <lib/term.h> #include <lib/term.h>
#include <lib/real.h> #include <lib/real.h>
#include <lib/blib.h> #include <lib/blib.h>
@ -73,8 +77,7 @@ enum {
BOOTED_FROM_CD BOOTED_FROM_CD
}; };
__attribute__((noreturn)) noreturn void entry(uint8_t boot_drive, int boot_from) {
void entry(uint8_t boot_drive, int boot_from) {
// XXX DO NOT MOVE A20 ENABLE CALL // XXX DO NOT MOVE A20 ENABLE CALL
if (!a20_enable()) if (!a20_enable())
panic(false, "Could not enable A20 line"); panic(false, "Could not enable A20 line");

9
stage23/entry.s3.c
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@ -1,3 +1,6 @@
#include <stddef.h>
#include <stdint.h>
#include <stdnoreturn.h>
#include <lib/term.h> #include <lib/term.h>
#include <lib/real.h> #include <lib/real.h>
#include <lib/blib.h> #include <lib/blib.h>
@ -43,8 +46,7 @@ EFI_STATUS efi_main(
#endif #endif
} }
__attribute__((noreturn)) noreturn void uefi_entry(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable) {
void uefi_entry(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable) {
gST = SystemTable; gST = SystemTable;
gBS = SystemTable->BootServices; gBS = SystemTable->BootServices;
gRT = SystemTable->RuntimeServices; gRT = SystemTable->RuntimeServices;
@ -124,8 +126,7 @@ void uefi_entry(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable) {
} }
#endif #endif
__attribute__((noreturn)) noreturn void stage3_common(void) {
void stage3_common(void) {
init_flush_irqs(); init_flush_irqs();
init_io_apics(); init_io_apics();

7
stage23/lib/blib.h
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@ -4,6 +4,7 @@
#include <stddef.h> #include <stddef.h>
#include <stdint.h> #include <stdint.h>
#include <stdbool.h> #include <stdbool.h>
#include <stdnoreturn.h>
#include <fs/file.h> #include <fs/file.h>
#include <lib/part.h> #include <lib/part.h>
#include <lib/libc.h> #include <lib/libc.h>
@ -48,7 +49,7 @@ int digit_to_int(char c);
uint8_t bcd_to_int(uint8_t val); uint8_t bcd_to_int(uint8_t val);
uint8_t int_to_bcd(uint8_t val); uint8_t int_to_bcd(uint8_t val);
__attribute__((noreturn)) void panic(bool allow_menu, const char *fmt, ...); noreturn void panic(bool allow_menu, const char *fmt, ...);
int pit_sleep_and_quit_on_keypress(int seconds); int pit_sleep_and_quit_on_keypress(int seconds);
@ -80,9 +81,9 @@ void memcpy32to64(uint64_t, uint64_t, uint64_t);
typedef char symbol[]; typedef char symbol[];
__attribute__((noreturn)) void stage3_common(void); noreturn void stage3_common(void);
__attribute__((noreturn)) void common_spinup(void *fnptr, int args, ...); noreturn void common_spinup(void *fnptr, int args, ...);
#define no_unwind __attribute__((section(".no_unwind"))) #define no_unwind __attribute__((section(".no_unwind")))

3
stage23/lib/panic.s2.c
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@ -1,5 +1,6 @@
#include <stddef.h> #include <stddef.h>
#include <stdbool.h> #include <stdbool.h>
#include <stdnoreturn.h>
#include <lib/print.h> #include <lib/print.h>
#include <lib/real.h> #include <lib/real.h>
#include <lib/trace.h> #include <lib/trace.h>
@ -107,7 +108,7 @@ void fallback_get_cursor_pos(size_t *x, size_t *y) {
} }
#endif #endif
__attribute__((noreturn)) void panic(bool allow_menu, const char *fmt, ...) { noreturn void panic(bool allow_menu, const char *fmt, ...) {
va_list args; va_list args;
va_start(args, fmt); va_start(args, fmt);

3
stage23/lib/real.h
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@ -2,6 +2,7 @@
#define __LIB__REAL_H__ #define __LIB__REAL_H__
#include <stdint.h> #include <stdint.h>
#include <stdnoreturn.h>
#define rm_seg(x) ((uint16_t)(((int)x & 0xffff0) >> 4)) #define rm_seg(x) ((uint16_t)(((int)x & 0xffff0) >> 4))
#define rm_off(x) ((uint16_t)(((int)x & 0x0000f) >> 0)) #define rm_off(x) ((uint16_t)(((int)x & 0x0000f) >> 0))
@ -28,6 +29,6 @@ struct rm_regs {
void rm_int(uint8_t int_no, struct rm_regs *out_regs, struct rm_regs *in_regs); void rm_int(uint8_t int_no, struct rm_regs *out_regs, struct rm_regs *in_regs);
__attribute__((noreturn)) void rm_hcf(void); noreturn void rm_hcf(void);
#endif #endif

12
stage23/menu.c
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@ -1,6 +1,7 @@
#include <stdint.h> #include <stdint.h>
#include <stddef.h> #include <stddef.h>
#include <stdbool.h> #include <stdbool.h>
#include <stdnoreturn.h>
#include <menu.h> #include <menu.h>
#include <lib/print.h> #include <lib/print.h>
#include <lib/blib.h> #include <lib/blib.h>
@ -537,8 +538,8 @@ __attribute__((used))
static uintptr_t stack_at_first_entry = 0; static uintptr_t stack_at_first_entry = 0;
#endif #endif
__attribute__((noreturn, naked)) __attribute__((naked))
void menu(__attribute__((unused)) bool timeout_enabled) { noreturn void menu(__attribute__((unused)) bool timeout_enabled) {
#if defined (__i386__) #if defined (__i386__)
asm volatile ( asm volatile (
"pop %eax\n\t" "pop %eax\n\t"
@ -592,8 +593,8 @@ extern symbol s2_data_begin;
extern symbol s2_data_end; extern symbol s2_data_end;
#endif #endif
__attribute__((noreturn, used)) __attribute__((used))
static void _menu(bool timeout_enabled) { static noreturn void _menu(bool timeout_enabled) {
size_t data_size = (uintptr_t)data_end - (uintptr_t)data_begin; size_t data_size = (uintptr_t)data_end - (uintptr_t)data_begin;
#if bios == 1 #if bios == 1
size_t s2_data_size = (uintptr_t)s2_data_end - (uintptr_t)s2_data_begin; size_t s2_data_size = (uintptr_t)s2_data_end - (uintptr_t)s2_data_begin;
@ -867,8 +868,7 @@ timeout_aborted:
} }
} }
__attribute__((noreturn)) noreturn void boot(char *config) {
void boot(char *config) {
char *cmdline = config_get_value(config, 0, "KERNEL_CMDLINE"); char *cmdline = config_get_value(config, 0, "KERNEL_CMDLINE");
if (!cmdline) { if (!cmdline) {
cmdline = config_get_value(config, 0, "CMDLINE"); cmdline = config_get_value(config, 0, "CMDLINE");

7
stage23/menu.h
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@ -2,12 +2,11 @@
#define __MENU_H__ #define __MENU_H__
#include <stdbool.h> #include <stdbool.h>
#include <stdnoreturn.h>
__attribute__((noreturn)) noreturn void menu(bool timeout_enabled);
void menu(bool timeout_enabled);
__attribute__((noreturn)) noreturn void boot(char *config);
void boot(char *config);
char *config_entry_editor(const char *title, const char *orig_entry); char *config_entry_editor(const char *title, const char *orig_entry);

4
stage23/protos/linux.32.c
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@ -1,6 +1,8 @@
#include <stdint.h>
#include <stdnoreturn.h>
#include <sys/gdt.h> #include <sys/gdt.h>
__attribute__((noreturn)) void linux_spinup(void *entry, void *boot_params) { noreturn void linux_spinup(void *entry, void *boot_params) {
struct gdt_desc linux_gdt_descs[4]; struct gdt_desc linux_gdt_descs[4];
linux_gdt_descs[0] = (struct gdt_desc){0}; linux_gdt_descs[0] = (struct gdt_desc){0};
linux_gdt_descs[1] = (struct gdt_desc){0}; linux_gdt_descs[1] = (struct gdt_desc){0};

3
stage23/protos/linux.c
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@ -1,5 +1,6 @@
#include <stdint.h> #include <stdint.h>
#include <stddef.h> #include <stddef.h>
#include <stdnoreturn.h>
#include <protos/linux.h> #include <protos/linux.h>
#include <fs/file.h> #include <fs/file.h>
#include <lib/libc.h> #include <lib/libc.h>
@ -16,7 +17,7 @@
#include <drivers/edid.h> #include <drivers/edid.h>
#include <drivers/vga_textmode.h> #include <drivers/vga_textmode.h>
__attribute__((noreturn)) void linux_spinup(void *entry, void *boot_params); noreturn void linux_spinup(void *entry, void *boot_params);
// The following definitions and struct were copied and adapted from Linux // The following definitions and struct were copied and adapted from Linux
// kernel headers released under GPL-2.0 WITH Linux-syscall-note // kernel headers released under GPL-2.0 WITH Linux-syscall-note

4
stage23/protos/multiboot1.32.c
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@ -1,13 +1,13 @@
#include <stdint.h> #include <stdint.h>
#include <stddef.h> #include <stddef.h>
#include <stdbool.h> #include <stdbool.h>
#include <stdnoreturn.h>
#include <mm/vmm.h> #include <mm/vmm.h>
#if bios == 1 #if bios == 1
# include <sys/idt.h> # include <sys/idt.h>
#endif #endif
__attribute__((noreturn)) void multiboot1_spinup_32( noreturn void multiboot1_spinup_32(uint32_t entry_point, uint32_t multiboot1_info) {
uint32_t entry_point, uint32_t multiboot1_info) {
#if bios == 1 #if bios == 1
struct idtr idtr; struct idtr idtr;

5
stage23/protos/multiboot1.c
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@ -1,5 +1,6 @@
#include <stdint.h> #include <stdint.h>
#include <stddef.h> #include <stddef.h>
#include <stdnoreturn.h>
#include <protos/multiboot1.h> #include <protos/multiboot1.h>
#include <lib/libc.h> #include <lib/libc.h>
#include <lib/elf.h> #include <lib/elf.h>
@ -17,9 +18,7 @@
#include <mm/pmm.h> #include <mm/pmm.h>
#include <drivers/vga_textmode.h> #include <drivers/vga_textmode.h>
__attribute__((noreturn)) void multiboot1_spinup_32( noreturn void multiboot1_spinup_32(uint32_t entry_point, uint32_t multiboot1_info);
uint32_t entry_point,
uint32_t multiboot1_info);
bool multiboot1_load(char *config, char *cmdline) { bool multiboot1_load(char *config, char *cmdline) {
struct file_handle *kernel_file; struct file_handle *kernel_file;

4
stage23/protos/multiboot2.32.c
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@ -1,13 +1,13 @@
#include <stdint.h> #include <stdint.h>
#include <stddef.h> #include <stddef.h>
#include <stdbool.h> #include <stdbool.h>
#include <stdnoreturn.h>
#include <mm/vmm.h> #include <mm/vmm.h>
#if bios == 1 #if bios == 1
# include <sys/idt.h> # include <sys/idt.h>
#endif #endif
__attribute__((noreturn)) void multiboot2_spinup_32( noreturn void multiboot2_spinup_32(uint32_t entry_point, uint32_t multiboot2_info) {
uint32_t entry_point, uint32_t multiboot2_info) {
#if bios == 1 #if bios == 1
struct idtr idtr; struct idtr idtr;

6
stage23/protos/multiboot2.h
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@ -24,8 +24,9 @@
#include <stdint.h> #include <stdint.h>
#include <stdbool.h> #include <stdbool.h>
#include <stdnoreturn.h>
bool multiboot2_load(char *config, char* cmdline); bool multiboot2_load(char *config, char *cmdline);
/* How many bytes from the start of the file we search for the header. */ /* How many bytes from the start of the file we search for the header. */
#define MULTIBOOT_SEARCH 32768 #define MULTIBOOT_SEARCH 32768
@ -415,7 +416,6 @@ struct multiboot_tag_load_base_addr
uint32_t load_base_addr; uint32_t load_base_addr;
}; };
__attribute__((noreturn)) void multiboot2_spinup_32( noreturn void multiboot2_spinup_32(uint32_t entry_point, uint32_t multiboot1_info);
uint32_t entry_point, uint32_t multiboot1_info);
#endif #endif

3
stage23/protos/stivale.32.c
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@ -1,9 +1,10 @@
#include <stdint.h> #include <stdint.h>
#include <stddef.h> #include <stddef.h>
#include <stdbool.h> #include <stdbool.h>
#include <stdnoreturn.h>
#include <mm/vmm.h> #include <mm/vmm.h>
__attribute__((noreturn)) void stivale_spinup_32( noreturn void stivale_spinup_32(
int bits, bool level5pg, bool enable_nx, uint32_t pagemap_top_lv, int bits, bool level5pg, bool enable_nx, uint32_t pagemap_top_lv,
uint32_t entry_point_lo, uint32_t entry_point_hi, uint32_t entry_point_lo, uint32_t entry_point_hi,
uint32_t stivale_struct_lo, uint32_t stivale_struct_hi, uint32_t stivale_struct_lo, uint32_t stivale_struct_hi,

5
stage23/protos/stivale.c
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@ -1,6 +1,7 @@
#include <stdint.h> #include <stdint.h>
#include <stddef.h> #include <stddef.h>
#include <stdbool.h> #include <stdbool.h>
#include <stdnoreturn.h>
#include <protos/stivale.h> #include <protos/stivale.h>
#include <lib/libc.h> #include <lib/libc.h>
#include <lib/elf.h> #include <lib/elf.h>
@ -461,13 +462,13 @@ pagemap_t stivale_build_pagemap(bool level5pg, bool unmap_null, struct elf_range
extern symbol ImageBase; extern symbol ImageBase;
#endif #endif
__attribute__((noreturn)) void stivale_spinup_32( noreturn void stivale_spinup_32(
int bits, bool level5pg, uint32_t pagemap_top_lv, int bits, bool level5pg, uint32_t pagemap_top_lv,
uint32_t entry_point_lo, uint32_t entry_point_hi, uint32_t entry_point_lo, uint32_t entry_point_hi,
uint32_t stivale_struct_lo, uint32_t stivale_struct_hi, uint32_t stivale_struct_lo, uint32_t stivale_struct_hi,
uint32_t stack_lo, uint32_t stack_hi, uint32_t local_gdt); uint32_t stack_lo, uint32_t stack_hi, uint32_t local_gdt);
__attribute__((noreturn)) void stivale_spinup( noreturn void stivale_spinup(
int bits, bool level5pg, pagemap_t *pagemap, int bits, bool level5pg, pagemap_t *pagemap,
uint64_t entry_point, uint64_t _stivale_struct, uint64_t stack, uint64_t entry_point, uint64_t _stivale_struct, uint64_t stack,
bool enable_nx, uint32_t local_gdt) { bool enable_nx, uint32_t local_gdt) {

3
stage23/protos/stivale.h
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@ -3,6 +3,7 @@
#include <stdbool.h> #include <stdbool.h>
#include <stdint.h> #include <stdint.h>
#include <stdnoreturn.h>
#include <mm/vmm.h> #include <mm/vmm.h>
#include <lib/elf.h> #include <lib/elf.h>
@ -13,7 +14,7 @@ bool stivale_load_by_anchor(void **_anchor, const char *magic,
pagemap_t stivale_build_pagemap(bool level5pg, bool unmap_null, struct elf_range *ranges, size_t ranges_count, pagemap_t stivale_build_pagemap(bool level5pg, bool unmap_null, struct elf_range *ranges, size_t ranges_count,
bool want_fully_virtual, uint64_t physical_base, uint64_t virtual_base, bool want_fully_virtual, uint64_t physical_base, uint64_t virtual_base,
uint64_t direct_map_offset); uint64_t direct_map_offset);
__attribute__((noreturn)) void stivale_spinup( noreturn void stivale_spinup(
int bits, bool level5pg, pagemap_t *pagemap, int bits, bool level5pg, pagemap_t *pagemap,
uint64_t entry_point, uint64_t stivale_struct, uint64_t stack, uint64_t entry_point, uint64_t stivale_struct, uint64_t stack,
bool enable_nx, uint32_t local_gdt); bool enable_nx, uint32_t local_gdt);