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Add comments about ARM configure -fno-unwind-tables handling.

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This commit is contained in:
Joseph Myers 2013-03-11 23:55:55 +00:00
parent 7f86996afc
commit b7845b6388
5 changed files with 21 additions and 0 deletions
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9
ports/ChangeLog.arm
View file

@ -1,3 +1,12 @@
2013-03-11 Joseph Myers <joseph@codesourcery.com>
* sysdeps/arm/preconfigure.in: Add comment about
-fno-unwind-tables addition to CFLAGS.
* sysdeps/arm/preconfigure: Regenerated.
* sysdeps/unix/sysv/linux/arm/configure.in: Add comment about
-fno-unwind-tables removal from CFLAGS.
* sysdeps/unix/sysv/linux/arm/configure: Regenerated.
2013-03-11 Roland McGrath <roland@hack.frob.com>
* sysdeps/arm/bits/setjmp.h: Test [!__ASSEMBLER__] rather than [!_ASM].

5
ports/sysdeps/arm/preconfigure
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@ -5,6 +5,11 @@ case "$machine" in
arm*)
case $config_os in
linux-gnueabi*)
# If the compiler enables unwind tables by default, this causes
# problems with undefined symbols in -nostdlib link tests. To
# avoid this, add -fno-unwind-tables here and remove it in
# sysdeps/unix/sysv/linux/arm/configure.in after those tests have
# been run.
if "${CFLAGS+set}" != "set" ; then
CFLAGS="-g -O2"
fi

5
ports/sysdeps/arm/preconfigure.in
View file

@ -5,6 +5,11 @@ case "$machine" in
arm*)
case $config_os in
linux-gnueabi*)
# If the compiler enables unwind tables by default, this causes
# problems with undefined symbols in -nostdlib link tests. To
# avoid this, add -fno-unwind-tables here and remove it in
# sysdeps/unix/sysv/linux/arm/configure.in after those tests have
# been run.
if [ "${CFLAGS+set}" != "set" ]; then
CFLAGS="-g -O2"
fi

1
ports/sysdeps/unix/sysv/linux/arm/configure vendored
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@ -2,4 +2,5 @@
# Local configure fragment for sysdeps/unix/sysv/linux/arm.
libc_cv_gcc_unwind_find_fde=no
# Remove -fno-unwind-tables that was added in sysdeps/arm/preconfigure.in.
CFLAGS=${CFLAGS% -fno-unwind-tables}

1
ports/sysdeps/unix/sysv/linux/arm/configure.in
View file

@ -2,4 +2,5 @@ GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
# Local configure fragment for sysdeps/unix/sysv/linux/arm.
libc_cv_gcc_unwind_find_fde=no
# Remove -fno-unwind-tables that was added in sysdeps/arm/preconfigure.in.
CFLAGS=${CFLAGS% -fno-unwind-tables}