** Also affects: linux (Ubuntu Cosmic)
Importance: Undecided
Status: Incomplete
** Changed in: linux (Ubuntu Cosmic)
Status: Incomplete => Fix Committed
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https://bugs.launchpad.net/bugs/1783167
Title:
linux 4.17.0-5 fails to build on ppc64el with gcc-8
Status in linux package in Ubuntu:
Fix Committed
Status in linux source package in Cosmic:
Fix Committed
Bug description:
In file included from
/tmp/kernel-cascardo-e4c3144-A9Vl/build/arch/powerpc/kernel/syscalls.c:24:
/tmp/kernel-cascardo-e4c3144-A9Vl/build/include/linux/syscalls.h:233:18:
error: 'sys_mmap2' alias between functions of incompatible types 'l
ong int(long unsigned int, size_t, long unsigned int, long unsigned int,
long unsigned int, long unsigned int)' {aka 'long int(long uns
igned int, long unsigned int, long unsigned int, long unsigned int, long
unsigned int, long unsigned int)'} and 'long int(long int, lo
ng int, long int, long int, long int, long int)' [-Werror=attribute-alias]
asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
^~~
/tmp/kernel-cascardo-e4c3144-A9Vl/build/include/linux/syscalls.h:222:2: note:
in expansion of macro '__SYSCALL_DEFINEx'
__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
^~~~~~~~~~~~~~~~~
/tmp/kernel-cascardo-e4c3144-A9Vl/build/include/linux/syscalls.h:216:36:
note: in expansion of macro 'SYSCALL_DEFINEx'
#define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
^~~~~~~~~~~~~~~
/tmp/kernel-cascardo-e4c3144-A9Vl/build/arch/powerpc/kernel/syscalls.c:65:1:
note: in expansion of macro 'SYSCALL_DEFINE6'
SYSCALL_DEFINE6(mmap2, unsigned long, addr, size_t, len,
^~~~~~~~~~~~~~~
/tmp/kernel-cascardo-e4c3144-A9Vl/build/include/linux/syscalls.h:238:18:
note: aliased declaration here
asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
^~~~~~~~
/tmp/kernel-cascardo-e4c3144-A9Vl/build/include/linux/syscalls.h:222:2: note:
in expansion of macro '__SYSCALL_DEFINEx'
__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
^~~~~~~~~~~~~~~~~
/tmp/kernel-cascardo-e4c3144-A9Vl/build/include/linux/syscalls.h:216:36:
note: in expansion of macro 'SYSCALL_DEFINEx'
#define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
^~~~~~~~~~~~~~~
/tmp/kernel-cascardo-e4c3144-A9Vl/build/arch/powerpc/kernel/syscalls.c:65:1:
note: in expansion of macro 'SYSCALL_DEFINE6'
SYSCALL_DEFINE6(mmap2, unsigned long, addr, size_t, len,
^~~~~~~~~~~~~~~
/tmp/kernel-cascardo-e4c3144-A9Vl/build/include/linux/syscalls.h:233:18:
error: 'sys_mmap' alias between functions of incompatible types 'lo
ng int(long unsigned int, size_t, long unsigned int, long unsigned int,
long unsigned int, off_t)' {aka 'long int(long unsigned int, l
ong unsigned int, long unsigned int, long unsigned int, long unsigned int,
long int)'} and 'long int(long int, long int, long int, lo
ng int, long int, long int)' [-Werror=attribute-alias]
asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
^~~
/tmp/kernel-cascardo-e4c3144-A9Vl/build/include/linux/syscalls.h:222:2: note:
in expansion of macro '__SYSCALL_DEFINEx'
__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
^~~~~~~~~~~~~~~~~
/tmp/kernel-cascardo-e4c3144-A9Vl/build/include/linux/syscalls.h:216:36:
note: in expansion of macro 'SYSCALL_DEFINEx'
#define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
^~~~~~~~~~~~~~~
/tmp/kernel-cascardo-e4c3144-A9Vl/build/arch/powerpc/kernel/syscalls.c:72:1:
note: in expansion of macro 'SYSCALL_DEFINE6'
SYSCALL_DEFINE6(mmap, unsigned long, addr, size_t, len,
^~~~~~~~~~~~~~~
/tmp/kernel-cascardo-e4c3144-A9Vl/build/include/linux/syscalls.h:238:18:
note: aliased declaration here
asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
^~~~~~~~
/tmp/kernel-cascardo-e4c3144-A9Vl/build/include/linux/syscalls.h:222:2: note:
in expansion of macro '__SYSCALL_DEFINEx'
__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
^~~~~~~~~~~~~~~~~
/tmp/kernel-cascardo-e4c3144-A9Vl/build/include/linux/syscalls.h:216:36:
note: in expansion of macro 'SYSCALL_DEFINEx'
#define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
^~~~~~~~~~~~~~~
/tmp/kernel-cascardo-e4c3144-A9Vl/build/arch/powerpc/kernel/syscalls.c:72:1:
note: in expansion of macro 'SYSCALL_DEFINE6'
SYSCALL_DEFINE6(mmap, unsigned long, addr, size_t, len,
^~~~~~~~~~~~~~~
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