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| author | H. Peter Anvin <hpa@zytor.com> | 2010-06-27 12:02:48 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2010-06-27 12:02:48 -0700 |
| commit | b775b0040fe57ef71ec9cd98f9c124a3d116269b (patch) | |
| tree | ec85cf4b93d4d6ad4e5aa0eeeff0c8db14149a6c /core/isolinux.asm | |
| parent | 7ccf85b2a873bba3f363ad2df05457dd160c3f6d (diff) | |
| download | syslinux-b775b0040fe57ef71ec9cd98f9c124a3d116269b.tar.gz | |
Export the 64-bit partition offset and use it in chain.c
When used with the "fs" option to chain.c32, we need to know our own
filesystem offset. That means knowing if we used the MBR vs GPT
partition information, as well as if we ended up using the passed-in
information or not.
Resolve this by providing an explicit pointer to the current partition
offset. Eventually this should be replaced by some kind of statfs()
call.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'core/isolinux.asm')
| -rw-r--r-- | core/isolinux.asm | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/core/isolinux.asm b/core/isolinux.asm index 80607679..d9d630ee 100644 --- a/core/isolinux.asm +++ b/core/isolinux.asm @@ -101,7 +101,7 @@ ISOFlags resb 1 ; Flags for ISO directory search RetryCount resb 1 ; Used for disk access retries alignb 8 -bsHidden resq 1 ; Used in hybrid mode +Hidden resq 1 ; Used in hybrid mode bsSecPerTrack resw 1 ; Used in hybrid mode bsHeads resw 1 ; Used in hybrid mode @@ -242,8 +242,8 @@ _start_hybrid: pop eax pop ebx .nooffset: - mov [cs:bsHidden],eax - mov [cs:bsHidden+4],ebx + mov [cs:Hidden],eax + mov [cs:Hidden+4],ebx mov si,bios_cbios jcxz _start_common @@ -779,8 +779,8 @@ getlinsec_ebios: xor edx,edx shld edx,eax,2 shl eax,2 ; Convert to HDD sectors - add eax,[bsHidden] - adc edx,[bsHidden+4] + add eax,[Hidden] + adc edx,[Hidden+4] shl bp,2 .loop: @@ -852,7 +852,7 @@ getlinsec_ebios: getlinsec_cbios: xor edx,edx shl eax,2 ; Convert to HDD sectors - add eax,[bsHidden] + add eax,[Hidden] shl bp,2 .loop: @@ -1165,8 +1165,8 @@ init_fs: .hybrid: movzx ebp,word [MaxTransfer] .common: - mov ecx,[bsHidden] - mov ebx,[bsHidden+4] + mov ecx,[Hidden] + mov ebx,[Hidden+4] mov si,[bsHeads] mov di,[bsSecPerTrack] pm_call fs_init |