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bca718 |
Allows testing of AVX512 changes in a chroot (normally as root)
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bca718 |
without build issues.
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bca718 |
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bca718 |
commit d7e06450b9d730d7b62ba52f611585810fa902df
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bca718 |
Author: Carlos O'Donell <carlos@redhat.com>
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bca718 |
Date: Tue Jul 16 17:55:43 2013 -0400
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bca718 |
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bca718 |
BZ #15711: Avoid circular dependency for syscall.h
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bca718 |
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bca718 |
The generated header is compiled with `-ffreestanding' to avoid any
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bca718 |
circular dependencies against the installed implementation headers.
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bca718 |
Such a dependency would require the implementation header to be
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bca718 |
installed before the generated header could be built (See bug 15711).
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bca718 |
In current practice the generated header dependencies do not include
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bca718 |
any of the implementation headers removed by the use of `-ffreestanding'.
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bca718 |
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bca718 |
---
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bca718 |
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bca718 |
2013-07-15 Carlos O'Donell <carlos@redhat.com>
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bca718 |
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bca718 |
[BZ #15711]
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bca718 |
* sysdeps/unix/sysv/linux/Makefile ($(objpfx)bits/syscall%h):
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bca718 |
Avoid system header dependency with -ffreestanding.
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bca718 |
($(objpfx)bits/syscall%d): Likewise.
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bca718 |
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bca718 |
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
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bca718 |
index f580635..94916a2 100644
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bca718 |
--- a/sysdeps/unix/sysv/linux/Makefile
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bca718 |
+++ b/sysdeps/unix/sysv/linux/Makefile
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bca718 |
@@ -50,6 +50,13 @@ tests += tst-clone
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bca718 |
# be the condition for those options to use in a C #if condition.
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bca718 |
# abi-includes may be defined to a list of headers to include
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bca718 |
# in the generated header, if the default does not suffice.
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bca718 |
+#
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bca718 |
+# The generated header is compiled with `-ffreestanding' to avoid any
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bca718 |
+# circular dependencies against the installed implementation headers.
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bca718 |
+# Such a dependency would require the implementation header to be
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bca718 |
+# installed before the generated header could be built (See bug 15711).
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bca718 |
+# In current practice the generated header dependencies do not include
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bca718 |
+# any of the implementation headers removed by the use of `-ffreestanding'.
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bca718 |
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bca718 |
$(objpfx)bits/syscall%h $(objpfx)bits/syscall%d: ../sysdeps/unix/sysv/linux/sys/syscall.h
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bca718 |
$(make-target-directory)
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bca718 |
@@ -64,7 +71,7 @@ $(objpfx)bits/syscall%h $(objpfx)bits/syscall%d: ../sysdeps/unix/sysv/linux/sys/
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bca718 |
echo ''; \
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bca718 |
$(if $(abi-variants), \
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bca718 |
$(foreach v,$(abi-variants),\
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bca718 |
- $(CC) -E -MD -MP -MF $(@:.h=.d)-t$(v) -MT '$(@:.d=.h) $(@:.h=.d)' \
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bca718 |
+ $(CC) -ffreestanding -E -MD -MP -MF $(@:.h=.d)-t$(v) -MT '$(@:.d=.h) $(@:.h=.d)' \
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bca718 |
-x c $(sysincludes) $< $(abi-$(v)-options) \
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bca718 |
-D_LIBC -dM | \
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bca718 |
sed -n 's@^#define __NR_\([^ ]*\) .*$$@#define SYS_\1 __NR_\1@p' | \
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bca718 |
@@ -75,7 +82,7 @@ $(objpfx)bits/syscall%h $(objpfx)bits/syscall%d: ../sysdeps/unix/sysv/linux/sys/
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bca718 |
$(if $(abi-$(v)-condition),echo '#endif';) \
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bca718 |
rm -f $(@:.d=.h).new$(v); \
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bca718 |
), \
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bca718 |
- $(CC) -E -MD -MP -MF $(@:.h=.d)-t$(v) -MT '$(@:.d=.h) $(@:.h=.d)' \
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bca718 |
+ $(CC) -ffreestanding -E -MD -MP -MF $(@:.h=.d)-t$(v) -MT '$(@:.d=.h) $(@:.h=.d)' \
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bca718 |
-x c $(sysincludes) $< \
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bca718 |
-D_LIBC -dM | \
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bca718 |
sed -n 's@^#define __NR_\([^ ]*\) .*$$@#define SYS_\1 __NR_\1@p' | \
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