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authorJoern Rennecke <joern.rennecke@embecosm.com>2003-07-04 16:07:01 +0000
committerJoern Rennecke <joern.rennecke@embecosm.com>2003-07-04 16:07:01 +0000
commit3a51fda6618deaecb1fba81789b4913ee2e4eba0 (patch)
tree22857acdf87a9f49f94f04baf947775d7e8ba559 /ld/emulparams
parent27e28cc5db6f165661167247f6c60db4f706921c (diff)
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Allow to override sh64 initial stack value with --defsym:
* emulparams/shelf32.sh (STACK_ADDR): Don't define. (OTHER_SECTIONS): Include .stack. * emulparams/shelf64.sh (OTHER_SECTIONS): Likewise.
Diffstat (limited to 'ld/emulparams')
-rw-r--r--ld/emulparams/shelf32.sh17
-rw-r--r--ld/emulparams/shelf64.sh9
2 files changed, 22 insertions, 4 deletions
diff --git a/ld/emulparams/shelf32.sh b/ld/emulparams/shelf32.sh
index c05da3f..757f6a7 100644
--- a/ld/emulparams/shelf32.sh
+++ b/ld/emulparams/shelf32.sh
@@ -3,7 +3,6 @@
SCRIPT_NAME=elf
OUTPUT_FORMAT=${OUTPUT_FORMAT-"elf32-sh64"}
TEXT_START_ADDR=0x1000
-STACK_ADDR='ALIGN (0x40000) + 0x40000'
MAXPAGESIZE=128
ARCH=sh
MACHINE=sh5
@@ -34,9 +33,21 @@ DTOR_END='___dtors_end = .;'
# Do not use the varname=${varname-'string'} construct here; there are
# problems with that on some shells (e.g. on Solaris) where there is a bug
# that trigs when $varname contains a "}".
-OTHER_SECTIONS='
+# The effect of the .stack definition is like setting STACK_ADDR to 0x80000,
+# except that the setting can be overridden, e.g. --defsym _stack=0xff000,
+# and that we put an extra sentinal value at the bottom.
+# N.B. We can't use PROVIDE to set the default value in a symbol because
+# the address is needed to place the .stack section, which in turn is needed
+# to hold the sentinel value(s).
+OTHER_SECTIONS="
+ .stack ${RELOCATING-0}${RELOCATING+(DEFINED(_stack) ? _stack : ALIGN (0x40000) + 0x40000)} :
+ {
+ ${RELOCATING+_stack = .;}
+ *(.stack)
+ LONG(0xdeaddead)
+ }
.cranges 0 : { *(.cranges) }
-'
+"
# We need to adjust sizes in the .cranges section after relaxation, so
# we need an after_allocation function, and it goes in this file.
diff --git a/ld/emulparams/shelf64.sh b/ld/emulparams/shelf64.sh
index 2c9a9c5..61a0c8b 100644
--- a/ld/emulparams/shelf64.sh
+++ b/ld/emulparams/shelf64.sh
@@ -6,4 +6,11 @@ EXTRA_EM_FILE=
. ${srcdir}/emulparams/shelf32.sh
# We do not need .cranges
-OTHER_SECTIONS=''
+OTHER_SECTIONS="
+ .stack ${RELOCATING-0}${RELOCATING+(DEFINED(_stack) ? _stack : ALIGN (0x40000) + 0x40000)} :
+ {
+ ${RELOCATING+_stack = .;}
+ *(.stack)
+ LONG(0xdeaddead)
+ }
+"