diff options
| author | Michael Brown | 2007-07-16 14:10:49 +0200 |
|---|---|---|
| committer | Michael Brown | 2007-07-16 14:10:49 +0200 |
| commit | 833d6cc8ececc11e7fd615972e407d0fca425545 (patch) | |
| tree | b3c2d0d4f20bc2af9f92fe5001a569d15900c735 /src | |
| parent | Revert "no need for depending on build library ("blib")" (diff) | |
| download | ipxe-833d6cc8ececc11e7fd615972e407d0fca425545.tar.gz ipxe-833d6cc8ececc11e7fd615972e407d0fca425545.tar.xz ipxe-833d6cc8ececc11e7fd615972e407d0fca425545.zip | |
Add __bss16() macro, and allow use of .bss16 section by removing
link-time check for section overlaps. (In order to avoid wasting
space in the executable image, .bss16 will overlap with the following
section, which is .text).
Diffstat (limited to 'src')
| -rw-r--r-- | src/arch/i386/Config | 2 | ||||
| -rw-r--r-- | src/arch/i386/include/librm.h | 8 |
2 files changed, 9 insertions, 1 deletions
diff --git a/src/arch/i386/Config b/src/arch/i386/Config index 436917f88..b4335b39a 100644 --- a/src/arch/i386/Config +++ b/src/arch/i386/Config @@ -130,7 +130,7 @@ endif # this is almost always a win. the kernel uses it, too. CFLAGS+= -mpreferred-stack-boundary=2 -LDFLAGS+= -N +LDFLAGS+= -N --no-check-sections ifeq "$(shell uname -s)" "FreeBSD" CFLAGS+= -DIMAGE_FREEBSD -DELF_IMAGE -DAOUT_IMAGE diff --git a/src/arch/i386/include/librm.h b/src/arch/i386/include/librm.h index 9e9498cb9..e583055ea 100644 --- a/src/arch/i386/include/librm.h +++ b/src/arch/i386/include/librm.h @@ -27,6 +27,14 @@ extern char *text16; __attribute__ (( section ( ".data16" ) )) \ _data16_ ## variable array __asm__ ( #variable ) +#define __bss16( variable ) \ + __attribute__ (( section ( ".bss16" ) )) \ + _data16_ ## variable __asm__ ( #variable ) + +#define __bss16_array( variable, array ) \ + __attribute__ (( section ( ".bss16" ) )) \ + _data16_ ## variable array __asm__ ( #variable ) + #define __text16( variable ) \ __attribute__ (( section ( ".text16.data" ) )) \ _text16_ ## variable __asm__ ( #variable ) |