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kernel support for loading compressed apps - part 1

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git-svn-id: svn://kolibrios.org@237 a494cfbc-eb01-0410-851d-a64ba20cac60
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Sergey Semyonov (Serge)
2006-12-17 06:22:59 +00:00
parent 46d4105bf9
commit 54e1aacfec
7 changed files with 705 additions and 569 deletions
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16
kernel/trunk/core/debug.inc
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@@ -127,16 +127,16 @@ debug_getcontext:
imul eax, tss_step/32
add eax, tss_data
mov edi, edx
cmp [l.cs - tss_sceleton + eax], app_code
cmp [eax+TSS._cs], app_code
jnz .ring0
lea esi, [l.eip - tss_sceleton + eax]
lea esi, [eax+TSS._eip]
shr ecx, 2
rep movsd
jmp .ret
.ring0:
; note that following code assumes that all interrupt/exception handlers
; saves ring-3 context by push ds es, pushad in this order
mov esi, [l.esp0 - tss_sceleton + eax]
mov esi, [eax+TSS._esp0]
; top of ring0 stack: ring3 stack ptr (ss+esp), iret data (cs+eip+eflags), ds, es, pushad
sub esi, 8+12+8+20h
lodsd
@@ -186,14 +186,14 @@ debug_setcontext:
imul eax, tss_step/32
add eax, tss_data
mov esi, edx
cmp [l.cs - tss_sceleton + eax], app_code
cmp [eax+TSS._cs], app_code
jnz .ring0
lea edi, [l.eip - tss_sceleton + eax]
lea edi, [eax+TSS._eip]
shr ecx, 2
rep movsd
jmp .stiret
.ring0:
mov edi, [l.esp0 - tss_sceleton + eax]
mov edi, [eax+TSS._esp0]
sub edi, 8+12+8+20h
mov eax, [esi+24h]
stosd
@@ -249,7 +249,7 @@ debug_set_drx:
test byte [eax+10h], 55h
jnz .okret
imul eax, ebp, tss_step/32
and byte [eax + tss_data + l.trap - tss_sceleton], not 1
and byte [eax + tss_data + TSS._trap], not 1
.okret:
and dword [esp+36], 0
sti
@@ -291,7 +291,7 @@ debug_set_drx:
and [eax+10h+2], dx
or [eax+10h+2], bx ; set R/W and LEN fields
imul eax, ebp, tss_step/32
or byte [eax + tss_data + l.trap - tss_sceleton], 1
or byte [eax + tss_data + TSS._trap], 1
jmp .okret
debug_read_process_memory: