diff --git a/commands/i386/pc/drivemap_int13h.S b/commands/i386/pc/drivemap_int13h.S index 4403496..b460cd7 100644 --- a/commands/i386/pc/drivemap_int13h.S +++ b/commands/i386/pc/drivemap_int13h.S @@ -19,7 +19,7 @@ #include -#define INT13H_OFFSET(x) ((x) - EXT_C(grub_drivemap_handler)) +#define INT13H_OFFSET(x) ((x) - LOCAL (base)) .code16 @@ -27,6 +27,7 @@ /* The replacement int13 handler. Preserve all registers. */ FUNCTION(grub_drivemap_handler) +LOCAL (base): /* Save %dx for future restore. */ push %dx /* Push flags. Used to simulate interrupt with original flags. */ @@ -35,12 +36,7 @@ FUNCTION(grub_drivemap_handler) /* Map the drive number (always in DL). */ push %ax push %bx -#ifdef APPLE_CC - grub_drivemap_mapstart_ofs = INT13H_OFFSET(EXT_C(grub_drivemap_mapstart)) - movw $grub_drivemap_mapstart_ofs, %bx -#else - movw $INT13H_OFFSET(EXT_C(grub_drivemap_mapstart)), %bx -#endif + movw $INT13H_OFFSET(LOCAL (mapstart)), %bx more_remaining: movw %cs:(%bx), %ax @@ -66,12 +62,7 @@ not_found: popf pushf -#ifdef APPLE_CC - grub_drivemap_oldhandler_ofs = INT13H_OFFSET (EXT_C (grub_drivemap_oldhandler)) - lcall *%cs:grub_drivemap_oldhandler_ofs -#else - lcall *%cs:INT13H_OFFSET (EXT_C (grub_drivemap_oldhandler)) -#endif + lcall *%cs:INT13H_OFFSET (LOCAL (oldhandler)) push %bp mov %sp, %bp @@ -94,11 +85,7 @@ norestore: popf pushf -#ifdef APPLE_CC - lcall *%cs:grub_drivemap_oldhandler_ofs -#else - lcall *%cs:INT13H_OFFSET (EXT_C (grub_drivemap_oldhandler)) -#endif + lcall *%cs:INT13H_OFFSET (LOCAL (oldhandler)) push %bp mov %sp, %bp @@ -111,9 +98,13 @@ norestore: /* Far pointer to the old handler. Stored as a CS:IP in the style of real-mode IVT entries (thus PI:SC in mem). */ VARIABLE(grub_drivemap_oldhandler) +LOCAL (oldhandler): .word 0x0, 0x0 /* This label MUST be at the end of the copied block, since the installer code reserves additional space for mappings at runtime and copies them over it. */ -.align 2 + .align 2 + VARIABLE(grub_drivemap_mapstart) +LOCAL (mapstart): + .byte 0 diff --git a/genmk.rb b/genmk.rb index 9574ce9..7dec8af 100644 --- a/genmk.rb +++ b/genmk.rb @@ -133,7 +133,7 @@ else -rm -f $@ -rm -f address@hidden $(TARGET_CC) $(#{prefix}_LDFLAGS) $(TARGET_LDFLAGS) -Wl,-r,-d -o address@hidden #{pre_obj} #{mod_obj} - $(OBJCONV) -f$(TARGET_MODULE_FORMAT) -nr:_grub_mod_init:grub_mod_init -nr:_grub_mod_fini:grub_mod_fini -wd1106 -nu -nd address@hidden $@ + $(OBJCONV) -f$(TARGET_MODULE_FORMAT) -nr:_grub_mod_init:grub_mod_init -nr:_grub_mod_fini:grub_mod_fini -wd1106 -ew2030 -ew2050 -nu -nd address@hidden $@ -rm -f address@hidden endif diff --git a/kern/i386/pc/startup.S b/kern/i386/pc/startup.S index 1a896ed..2df23ec 100644 --- a/kern/i386/pc/startup.S +++ b/kern/i386/pc/startup.S @@ -53,7 +53,7 @@ #include #include -#define ABS(x) ((x) - _start + GRUB_BOOT_MACHINE_KERNEL_ADDR + 0x200) +#define ABS(x) ((x) - LOCAL (base) + GRUB_BOOT_MACHINE_KERNEL_ADDR + 0x200) .file "startup.S" @@ -66,16 +66,15 @@ .globl start, _start start: _start: +LOCAL (base): /* * Guarantee that "main" is loaded at 0x0:0x8200. */ -#ifdef APPLE_CC - codestart_abs = ABS(codestart) - 0x10000 - ljmp $0, $(codestart_abs) +#ifdef __APPLE__ + ljmp $0, $(ABS(LOCAL (codestart)) - 0x10000) #else - ljmp $0, $ABS(codestart) + ljmp $0, $ABS(LOCAL (codestart)) #endif - /* * Compatibility version number * @@ -180,7 +179,7 @@ multiboot_trampoline: .code16 /* the real mode code continues... */ -codestart: +LOCAL (codestart): cli /* we're not safe here! */ /* set up %ds, %ss, and %es */ @@ -1158,7 +1157,7 @@ FUNCTION(grub_console_real_putchar) */ /* this table is used in translate_keycode below */ -translation_table: +LOCAL (translation_table): .word GRUB_CONSOLE_KEY_LEFT, GRUB_TERM_LEFT .word GRUB_CONSOLE_KEY_RIGHT, GRUB_TERM_RIGHT .word GRUB_CONSOLE_KEY_UP, GRUB_TERM_UP @@ -1180,11 +1179,10 @@ translate_keycode: pushw %bx pushw %si -#ifdef APPLE_CC - translation_table_abs = ABS (translation_table) - 0x10000 - movw $(translation_table_abs), %si +#ifdef __APPLE__ + movw $(ABS(LOCAL (translation_table)) - 0x10000), %si #else - movw $ABS(translation_table), %si + movw $ABS(LOCAL (translation_table)), %si #endif 1: lodsw diff --git a/mmap/i386/pc/mmap_helper.S b/mmap/i386/pc/mmap_helper.S index c6d12fd..7439545 100644 --- a/mmap/i386/pc/mmap_helper.S +++ b/mmap/i386/pc/mmap_helper.S @@ -19,32 +19,27 @@ #include -#define DS(x) ((x) - segstart) +#define DS(x) ((x) - LOCAL (segstart)) -segstart: +LOCAL (segstart): VARIABLE(grub_machine_mmaphook_start) .code16 VARIABLE(grub_machine_mmaphook_int12) push %ds push %cs pop %ds -#ifdef APPLE_CC - grub_machine_mmaphook_kblow_rel = DS (EXT_C (grub_machine_mmaphook_kblow)) - movw (grub_machine_mmaphook_kblow_rel), %ax -#else - movw DS (EXT_C (grub_machine_mmaphook_kblow)), %ax -#endif + movw DS (LOCAL (kblow)), %ax pop %ds iret VARIABLE(grub_machine_mmaphook_int15) pushf cmpw $0xe801, %ax - jz e801 + jz LOCAL (e801) cmpw $0xe820, %ax - jz e820 + jz LOCAL (e820) cmpb $0x88, %ah - jz h88 + jz LOCAL (h88) popf /* ljmp */ .byte 0xea @@ -53,67 +48,44 @@ VARIABLE (grub_machine_mmaphook_int15offset) VARIABLE (grub_machine_mmaphook_int15segment) .word 0 -e801: +LOCAL (e801): popf push %ds push %cs pop %ds -#ifdef APPLE_CC - grub_machine_mmaphook_kbin16mb_rel = DS (EXT_C (grub_machine_mmaphook_kbin16mb)) - grub_machine_mmaphook_64kbin4gb_rel = DS (EXT_C (grub_machine_mmaphook_64kbin4gb)) - movw (grub_machine_mmaphook_kbin16mb_rel), %ax - movw (grub_machine_mmaphook_64kbin4gb_rel), %bx -#else - movw DS (EXT_C (grub_machine_mmaphook_kbin16mb)), %ax - movw DS (EXT_C (grub_machine_mmaphook_64kbin4gb)), %bx -#endif + movw DS (LOCAL (kbin16mb)), %ax + movw DS (LOCAL (m64kbin4gb)), %bx movw %ax, %cx movw %bx, %dx pop %ds clc iret -h88: +LOCAL (h88): popf push %ds push %cs pop %ds -#ifdef APPLE_CC - movw (grub_machine_mmaphook_kbin16mb_rel), %ax -#else - movw DS (EXT_C (grub_machine_mmaphook_kbin16mb)), %ax -#endif + movw DS (LOCAL (kbin16mb)), %ax pop %ds clc iret -e820: -#ifdef APPLE_CC - mmaphook_mmap_rel = DS(mmaphook_mmap) - mmaphook_mmap_num_rel = DS(EXT_C(grub_machine_mmaphook_mmap_num)) -#endif +LOCAL (e820): popf push %ds push %cs pop %ds cmpw $20, %cx - jb errexit -#ifdef APPLE_CC - cmpw (mmaphook_mmap_num_rel), %bx -#else - cmpw DS (EXT_C (grub_machine_mmaphook_mmap_num)), %bx -#endif - jae errexit + jb LOCAL (errexit) + cmpw DS (LOCAL (mmap_num)), %bx + jae LOCAL (errexit) cmp $0x534d4150, %edx - jne errexit + jne LOCAL (errexit) push %si push %di movw $20, %cx -#ifdef APPLE_CC - movl $(mmaphook_mmap_rel), %esi -#else - movw $(DS(mmaphook_mmap)), %si -#endif + movw $(DS(LOCAL (mmaphook_mmap))), %si mov %bx, %ax imul $20, %ax add %ax, %si @@ -122,19 +94,15 @@ e820: pop %si movl $20, %ecx inc %bx -#ifdef APPLE_CC - cmpw (mmaphook_mmap_num_rel), %bx -#else - cmpw DS(EXT_C(grub_machine_mmaphook_mmap_num)), %bx -#endif - jb noclean + cmpw DS(LOCAL (mmap_num)), %bx + jb LOCAL (noclean) xor %bx, %bx -noclean: +LOCAL (noclean): mov $0x534d4150, %eax pop %ds clc iret -errexit: +LOCAL (errexit): mov $0x534d4150, %eax pop %ds stc @@ -142,13 +110,18 @@ errexit: iret VARIABLE(grub_machine_mmaphook_mmap_num) +LOCAL (mmap_num): .word 0 VARIABLE(grub_machine_mmaphook_kblow) +LOCAL (kblow): .word 0 VARIABLE (grub_machine_mmaphook_kbin16mb) +LOCAL (kbin16mb): .word 0 VARIABLE (grub_machine_mmaphook_64kbin4gb) +LOCAL (m64kbin4gb): .word 0 -mmaphook_mmap: +LOCAL (mmaphook_mmap): /* Memory map is placed just after the interrupt handlers. */ VARIABLE(grub_machine_mmaphook_end) + .byte 0