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Add code model medlow to cflags and move the kernel load address from

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just before the memory hole to 4 megs.  Special case building exception.s
like locore.s, it needs to at the beginning so the branches out from the
trap table don't overflow.
This commit is contained in:
Jake Burkholder 2001-08-06 02:18:39 +00:00
parent b2c98acc5e
commit a03f751e5a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=81173
3 changed files with 13 additions and 10 deletions
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9
sys/conf/Makefile.sparc64
View File

@ -65,7 +65,7 @@ INCLUDES+= -I/usr/include
.endif
COPTS= ${INCLUDES} ${IDENT} -D_KERNEL -include opt_global.h
CFLAGS= ${COPTFLAGS} ${CWARNFLAGS} ${DEBUG} ${COPTS}
CFLAGS= ${COPTFLAGS} ${CWARNFLAGS} ${DEBUG} ${COPTS} -mcmodel=medlow
# XXX LOCORE means "don't declare C stuff" not "for locore.s".
ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS}
@ -99,9 +99,9 @@ NORMAL_M= perl5 $S/kern/makeobjops.pl -c $<; \
GEN_CFILES= $S/$M/$M/genassym.c
SYSTEM_CFILES= vnode_if.c hints.c config.c
SYSTEM_SFILES= $S/$M/$M/locore.s
SYSTEM_SFILES= $S/$M/$M/locore.s $S/$M/$M/exception.s
SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
SYSTEM_OBJS= locore.o vnode_if.o ${OBJS} hints.o config.o hack.So
SYSTEM_OBJS= locore.o exception.o vnode_if.o ${OBJS} hints.o config.o hack.So
SYSTEM_LD= @${LD} ${FMT} -Bdynamic -T $S/conf/ldscript.$M \
-export-dynamic -dynamic-linker /red/herring \
-o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
@ -178,6 +178,9 @@ kernel-clobber:
locore.o: $S/$M/$M/locore.s assym.s
${NORMAL_S}
exception.o: $S/$M/$M/exception.s assym.s
${NORMAL_S}
# This is a hack. BFD "optimizes" away dynamic mode if there are no
# dynamic references. We could probably do a '-Bforcedynamic' mode like
# in the a.out ld. For now, this works.

6
sys/conf/files.sparc64
View File

@ -16,10 +16,10 @@ sparc64/sparc64/db_disasm.c optional ddb
sparc64/sparc64/db_interface.c optional ddb
sparc64/sparc64/db_trace.c optional ddb
sparc64/sparc64/elf_machdep.c standard
# locore.s needs to be handled in Makefile to put it first. Otherwise it's
# now normal.
# locore.s and exception.s need to be handled in Makefile to put them first.
# Otherwise it's they're normal.
# sparc64/sparc64/locore.s standard
sparc64/sparc64/exception.s standard
# sparc64/sparc64/exception.s standard
sparc64/sparc64/fp.c standard
sparc64/sparc64/machdep.c standard
sparc64/sparc64/pmap.c standard

8
sys/conf/ldscript.sparc64
View File

@ -9,7 +9,7 @@ ENTRY(_start)
SECTIONS
{
/* Read-only sections, merged into text segment: */
. = 0x60000000000 + SIZEOF_HEADERS;
. = 0x400000 + SIZEOF_HEADERS;
.interp : { *(.interp) }
.hash : { *(.hash) }
.dynsym : { *(.dynsym) }
@ -128,7 +128,7 @@ SECTIONS
.init :
{
KEEP (*(.init))
} = 0x60000000000
} = 0x400000
.text :
{
*(.trap)
@ -138,11 +138,11 @@ SECTIONS
/* .gnu.warning sections are handled specially by elf32.em. */
*(.gnu.warning)
*(.gnu.linkonce.t.*)
} = 0x60000000000
} = 0x400000
.fini :
{
KEEP (*(.fini))
} = 0x60000000000
} = 0x400000
PROVIDE (__etext = .);
PROVIDE (_etext = .);
PROVIDE (etext = .);