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committer: mfx <mfx> 1126929315 +0000
This commit is contained in:
Markus F.X.J. Oberhumer
2005-09-17 03:55:15 +00:00
parent ee8c7453bd
commit c33584e683
1 changed files with 31 additions and 31 deletions
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src/p_vmlinx.cpp
+31 -31
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@@ -487,37 +487,37 @@ void PackVmlinuxI386::unpack(OutputFile *fo)
//-----
//
//----- arch/i386/boot/compressed/upx-head.S
// .text
// .text
//startup_32: .globl startup_32 # In: %esi=0x90000 setup data "real_mode pointer"
// #cli # this must be true already
// #cli # this must be true already
//
// /* The only facts about segments here, that are true for all kernels:
// * %cs is a valid "flat" code segment; no other segment reg is valid;
// * the next segment after %cs is a valid "flat" data segment, but
// * no segment register designates it yet.
// */
// movl %cs,%eax; addl $1<<3,%eax # the next segment after %cs
// movl %eax,%ds
// movl %eax,%es
// leal 0x9000(%esi),%ecx # 0x99000 typical
// movl %ecx,-8(%ecx) # 32-bit offset for stack pointer
// movl %eax,-4(%ecx) # segment for stack pointer
// lss -8(%ecx),%esp # %ss:%esp= %ds:0x99000
// /* Linux Documentation/i386/boot.txt "SAMPLE BOOT CONFIGURATION" says
// 0x8000-0x8FFF Stack and heap [inside the "real mode segment",
// just below the command line at offset 0x9000].
// /* The only facts about segments here, that are true for all kernels:
// * %cs is a valid "flat" code segment; no other segment reg is valid;
// * the next segment after %cs is a valid "flat" data segment, but
// * no segment register designates it yet.
// */
// movl %cs,%eax; addl $1<<3,%eax # the next segment after %cs
// movl %eax,%ds
// movl %eax,%es
// leal 0x9000(%esi),%ecx # 0x99000 typical
// movl %ecx,-8(%ecx) # 32-bit offset for stack pointer
// movl %eax,-4(%ecx) # segment for stack pointer
// lss -8(%ecx),%esp # %ss:%esp= %ds:0x99000
// /* Linux Documentation/i386/boot.txt "SAMPLE BOOT CONFIGURATION" says
// 0x8000-0x8FFF Stack and heap [inside the "real mode segment",
// just below the command line at offset 0x9000].
//
// arch/i386/boot/compressed/head.S "Do the decompression ..." says
// %esi contains the "real mode pointer" [as a 32-bit addr].
// arch/i386/boot/compressed/head.S "Do the decompression ..." says
// %esi contains the "real mode pointer" [as a 32-bit addr].
//
// In any case, avoid EBDA (Extended BIOS Data Area) below 0xA0000.
// boot.txt says 0x9A000 is the limit. LILO goes up to 0x9B000.
// */
// In any case, avoid EBDA (Extended BIOS Data Area) below 0xA0000.
// boot.txt says 0x9A000 is the limit. LILO goes up to 0x9B000.
// */
//
// pushl $0; popf # subsumes "cli; cld"; also clears NT for buggy BIOS
// pushl $0; popf # subsumes "cli; cld"; also clears NT for buggy BIOS
//
// movl $ 0x100000,%eax # destination of uncompression (and entry point)
// push %cs
// movl $ 0x100000,%eax # destination of uncompression (and entry point)
// push %cs
/* Fall into .text of upx-compressed vmlinux. */
//-----
@@ -550,17 +550,17 @@ void PackVmlinuxI386::unpack(OutputFile *fo)
//all: vmlinux
//
//vmlinux: upx-piggy.o $(OBJECTS)
// $(LD) $(ZLINKFLAGS) -o vmlinux $(OBJECTS) upx-piggy.o
// $(LD) $(ZLINKFLAGS) -o vmlinux $(OBJECTS) upx-piggy.o
//
//bvmlinux: upx-piggy.o $(OBJECTS)
// $(LD) $(BZLINKFLAGS) -o bvmlinux $(OBJECTS) upx-piggy.o
// $(LD) $(BZLINKFLAGS) -o bvmlinux $(OBJECTS) upx-piggy.o
//
//upx-piggy.o: $(SYSTEM)
// $(RM) -f $@
// upx --best -o $@ $<
//upx-piggy.o: $(SYSTEM)
// $(RM) -f $@
// upx --best -o $@ $<
//
//clean:
// rm -f vmlinux bvmlinux _tmp_*
// rm -f vmlinux bvmlinux _tmp_*
//-----
//