The DOS .com prefix was brought over from legacy Etherboot but does not build. There has been no demand for .com images so this patch removes the prefix.
Signed-off-by: Stefan Hajnoczi <[email protected]> --- src/arch/i386/Makefile.pcbios | 1 - src/arch/i386/prefix/comprefix.S | 46 -------------------------------------- 2 files changed, 0 insertions(+), 47 deletions(-) delete mode 100644 src/arch/i386/prefix/comprefix.S diff --git a/src/arch/i386/Makefile.pcbios b/src/arch/i386/Makefile.pcbios index 3ebfc0c..ba153e9 100644 --- a/src/arch/i386/Makefile.pcbios +++ b/src/arch/i386/Makefile.pcbios @@ -25,7 +25,6 @@ MEDIA += dsk MEDIA += nbi MEDIA += hd MEDIA += raw -MEDIA += com MEDIA += exe # Padding rules diff --git a/src/arch/i386/prefix/comprefix.S b/src/arch/i386/prefix/comprefix.S deleted file mode 100644 index 2cbbca5..0000000 --- a/src/arch/i386/prefix/comprefix.S +++ /dev/null @@ -1,46 +0,0 @@ -/* We need a real mode stack that won't be stomped on by Etherboot - which starts at 0x20000. Choose something that's sufficiently high, - but not in DOC territory. Note that we couldn't do this in a real - .com program since stack variables are in the same segment as the - code and data, but this isn't really a .com program, it just looks - like one to make DOS load it into memory. It still has the 64kB - limitation of .com files though. */ -#define STACK_SEG 0x7000 -#define STACK_SIZE 0x4000 - - .text - .code16 - .arch i386 - .section ".prefix", "ax", @progbits - -/* Cheat a little with the relocations: .COM files are loaded at 0x100 */ -_prefix: - /* Set up temporary stack */ - movw $STACK_SEG, %ax - movw %ax, %ss - movw $STACK_SIZE, %sp - - pushl $0 /* No parameters to preserve for exit path */ - pushw $0 /* Dummy return address - use prefix_exit */ - - /* Calculate segment address of image start */ - pushw %cs - popw %ax - addw $(0x100/16), %ax - pushw %ax - pushw $_start - /* Calculated lcall to _start with %cs:0000 = image start */ - lret - - .section ".text16", "ax", @progbits -prefix_exit: - movw $0x4c00,%ax /* return to DOS */ - int $0x21 /* reach this on Quit */ -prefix_exit_end: - .previous - -/* The body of etherboot is attached here at build time. - * Force 16 byte alignment - */ - .align 16,0 -_body: -- 1.6.5 _______________________________________________ gPXE mailing list [email protected] http://etherboot.org/mailman/listinfo/gpxe
