diff options
Diffstat (limited to 'src/arch/i386/transitions/librm.S')
| -rwxr-xr-x | src/arch/i386/transitions/librm.S | 43 |
1 files changed, 20 insertions, 23 deletions
diff --git a/src/arch/i386/transitions/librm.S b/src/arch/i386/transitions/librm.S index 7e9fd45d..8cf1f7f5 100755 --- a/src/arch/i386/transitions/librm.S +++ b/src/arch/i386/transitions/librm.S @@ -19,9 +19,6 @@ #define SIZEOF_I386_ALL_REGS ( SIZEOF_REAL_MODE_REGS + SIZEOF_I386_FLAGS ) .arch i386 - .section ".text16", "ax", @progbits - .section ".text16.data", "aw", @progbits - .section ".data16", "aw", @progbits /**************************************************************************** * Global descriptor table @@ -47,7 +44,7 @@ #else #define RM_LIMIT_16_19__AVL__SIZE__GRANULARITY 0x00 #endif - .section ".data16" + .section ".data16", "aw", @progbits .align 16 gdt: gdtr: /* The first GDT entry is unused, the GDTR can fit here. */ @@ -99,7 +96,7 @@ gdt_end: * %edi : Physical base of protected-mode code (virt_offset) **************************************************************************** */ - .section ".text16" + .section ".text16", "ax", @progbits .code16 .globl init_librm init_librm: @@ -149,7 +146,7 @@ init_librm: popl %eax lret - .section ".text16" + .section ".text16", "ax", @progbits .code16 .weak idt_init set_seg_base: @@ -177,7 +174,7 @@ idt_init: /* Reuse the return opcode here */ * **************************************************************************** */ - .section ".text16" + .section ".text16", "ax", @progbits .code16 real_to_prot: /* Make sure we have our data segment available */ @@ -209,7 +206,7 @@ real_to_prot: orb $CR0_PE, %al movl %eax, %cr0 data32 ljmp $VIRTUAL_CS, $1f - .section ".text" + .section ".text", "ax", @progbits .code32 1: /* Set up protected-mode data segments and stack pointer */ @@ -240,7 +237,7 @@ real_to_prot: ret /* Default IDTR with no interrupts */ - .section ".data16" + .section ".data16", "aw", @progbits .weak idtr idtr: rm_idtr: @@ -266,7 +263,7 @@ rm_idtr: * **************************************************************************** */ - .section ".text" + .section ".text", "ax", @progbits .code32 prot_to_real: /* Add return address to data to be moved to RM stack */ @@ -296,7 +293,7 @@ prot_to_real: movw %ax, %gs movw %ax, %ss ljmp $REAL_CS, $1f - .section ".text16" + .section ".text16", "ax", @progbits .code16 1: /* Switch to real mode */ @@ -328,13 +325,13 @@ p2r_jump_target: * rather than .data16 because code needs to be able to locate * the data segment. */ - .section ".data16" + .section ".data16", "aw", @progbits p2r_jump_vector: .word p2r_jump_target .globl rm_cs rm_cs: .word 0 .globl rm_ds - .section ".text16.data" + .section ".text16.data", "aw", @progbits rm_ds: .word 0 /**************************************************************************** @@ -378,7 +375,7 @@ rm_ds: .word 0 #define PC_OFFSET_FUNCTION ( PC_OFFSET_RETADDR + 4 ) #define PC_OFFSET_END ( PC_OFFSET_FUNCTION + 4 ) - .section ".text16" + .section ".text16", "ax", @progbits .code16 .globl prot_call prot_call: @@ -403,7 +400,7 @@ prot_call: movl $PC_OFFSET_END, %ecx pushl $1f jmp real_to_prot - .section ".text" + .section ".text", "ax", @progbits .code32 1: /* Set up environment expected by C code */ @@ -419,7 +416,7 @@ prot_call: movl $PC_OFFSET_END, %ecx pushl $1f jmp prot_to_real - .section ".text16" + .section ".text16", "ax", @progbits .code16 1: /* Reload GDT and IDT, restore registers and flags and return */ @@ -475,7 +472,7 @@ prot_call: #define RC_OFFSET_FUNCTION ( RC_OFFSET_RETADDR + 4 ) #define RC_OFFSET_END ( RC_OFFSET_FUNCTION + 4 ) - .section ".text" + .section ".text", "ax", @progbits .code32 .globl real_call real_call: @@ -487,7 +484,7 @@ real_call: movl $( RC_OFFSET_RETADDR + 4 /* function pointer copy */ ), %ecx pushl $1f jmp prot_to_real - .section ".text16" + .section ".text16", "ax", @progbits .code16 1: /* Call real-mode function */ @@ -503,7 +500,7 @@ real_call: movl $RC_OFFSET_RETADDR, %ecx pushl $1f jmp real_to_prot - .section ".text" + .section ".text", "ax", @progbits .code32 1: /* Restore registers and return */ @@ -514,7 +511,7 @@ real_call: /* Function vector, used because "call xx(%sp)" is not a valid * 16-bit expression. */ - .section ".data16" + .section ".data16", "aw", @progbits rc_function: .word 0, 0 /**************************************************************************** @@ -551,7 +548,7 @@ rc_function: .word 0, 0 * to us. **************************************************************************** */ - .section ".data" + .section ".data", "aw", @progbits .globl rm_sp rm_sp: .word 0 .globl rm_ss @@ -567,13 +564,13 @@ pm_esp: .long _estack **************************************************************************** */ /* Internal copies, created by init_librm (which runs in real mode) */ - .section ".data16" + .section ".data16", "aw", @progbits _virt_offset: .long 0 _text16: .long 0 _data16: .long 0 /* Externally-visible copies, created by real_to_prot */ - .section ".data" + .section ".data", "aw", @progbits .globl virt_offset virt_offset: .long 0 .globl text16 |