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On Thu, 02 Feb 2006 15:03:53 +0000 |
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Ed W <lists@××××××××××.com> wrote: |
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> I am trying to get Xen running under a hardened kernel. The machine |
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> is currently booted with "selinux=1 enforcing=0". I am having |
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> trouble compiling: |
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File a bug. These unresolved symbols indicate those files have been |
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compiled with the stack protector on, as can be seen from the |
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compilation lines. However while the ebuild does do the 'filter-flags |
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-fPIE -fstack-protector' the build is ignoring CFLAGS for some of its |
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compilations. |
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|
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An alternative for now, is to switch to the -hardenednopiessp variant |
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of your compiler and build it with that. |
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|
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> gcc -DDEBUG -D_ACPI_ -DTEXTADDR=0x000D0000 -I. -I../../../tools/libxc |
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> -Wall -fno-builtin -O2 -msoft-float -m32 -march=i686 -D__ASSEMBLY__ |
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> -DDEBUG -D_ACPI_ -DTEXTADDR=0x000D0000 -c trap.S |
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> gcc -DDEBUG -D_ACPI_ -DTEXTADDR=0x000D0000 -I. -I../../../tools/libxc |
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> -Wall -fno-builtin -O2 -msoft-float -m32 -march=i686 -c vm86.c |
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> gcc -DDEBUG -D_ACPI_ -DTEXTADDR=0x000D0000 -I. -I../../../tools/libxc |
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> -Wall -fno-builtin -O2 -msoft-float -m32 -march=i686 -c setup.c |
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> gcc -DDEBUG -D_ACPI_ -DTEXTADDR=0x000D0000 -I. -I../../../tools/libxc |
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> -Wall -fno-builtin -O2 -msoft-float -m32 -march=i686 -c util.c |
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> cpp -P -DDEBUG -D_ACPI_ -DTEXTADDR=0x000D0000 vmxassist.ld > |
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> vmxassist.tmp ld -o vmxassist -m elf_i386 -nostdlib --fatal-warnings |
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> -N -T vmxassist.tmp head.o trap.o vm86.o setup.o util.o |
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> vm86.o: In function `address': |
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> vm86.c:(.text+0x19): undefined reference to `__guard' |
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> vm86.c:(.text+0x56): undefined reference to `__stack_smash_handler' |
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> vm86.o: In function `trace': |
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> vm86.c:(.text+0xe9): undefined reference to `__guard' |
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> vm86.c:(.text+0x141): undefined reference to `__guard' |
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> vm86.c:(.text+0x15d): undefined reference to `__stack_smash_handler' |
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> vm86.o: In function `getreg': |
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> vm86.c:(.text+0x278): undefined reference to `__guard' |
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> vm86.o: In function `.L23': |
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> ...etc... |
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> |
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> |
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> I have tried various combinations of compiler using gcc-config. |
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> Neither gcc-3.4.4 or gcc-3.3.6 seem to do any better, hardened or not |
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> |
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> I suspect that this could be a problem with the compiler still using |
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> some hardend profile despite me asking for a non-hardened gcc? Can |
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> anyone please help debug this |
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> |
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> Ed W |
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-- |
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Kevin F. Quinn |
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