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[build] Ensure an entry point symbol exists in all builds

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Commit 623469d ("[build] Eliminate unused sections at link-time")
introduced a regression in several build formats, in which the prefix
would end up being garbage-collected out of existence.  Fix by
ensuring that an entry symbol exists in each possible prefix, and is
required by the linker script.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2011-02-23 20:20:55 +00:00
parent 7ef314514c
commit 295c2fd671
7 changed files with 16 additions and 3 deletions
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7
src/arch/i386/prefix/nbiprefix.S
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@@ -17,7 +17,7 @@ file_header:
.byte 0
.byte 0 /* No flags */
.word 0x0000, 0x07c0 /* Load header to 0x07c0:0x0000 */
.word entry, 0x07c0 /* Start execution at 0x07c0:entry */
.word start, 0x07c0 /* Start execution at 0x07c0:entry */
.size file_header, . - file_header
/*****************************************************************************
@@ -49,7 +49,8 @@ memlen: .long -512
* NBI entry point
*****************************************************************************
*/
entry:
.globl start
start:
/* Install iPXE */
call install
@@ -71,7 +72,7 @@ entry:
int $0x19
.previous
.size entry, . - entry
.size start, . - start
nbi_header_end:
.org 512