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1eb8a49836
linux/arch/x86/entry
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Masahiro Yamada 1eb8a49836 x86/syscalls: Clear 'offset' and 'prefix' in case they are set in env 
If the environment variable 'prefix' is set on the build host, it is
wrongly used as syscall macro prefixes.

  $ export prefix=/usr
  $ make -s defconfig all
  In file included from ./arch/x86/include/asm/unistd.h:20,
                   from <stdin>:2:
  ./arch/x86/include/generated/uapi/asm/unistd_64.h:4:9: warning: missing whitespace after the macro name
      4 | #define __NR_/usrread 0
        |         ^~~~~

arch/x86/entry/syscalls/Makefile should clear 'offset' and 'prefix'.

Fixes: 3cba325b35 ("x86/syscalls: Switch to generic syscallhdr.sh")
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210525115420.679416-1-masahiroy@kernel.org
2021-05-25 16:59:23 +02:00
..
syscalls x86/syscalls: Clear 'offset' and 'prefix' in case they are set in env 2021-05-25 16:59:23 +02:00
vdso A single fix for the x86 VDSO build infrastructure to address a compiler 2021-04-26 10:17:34 -07:00
vsyscall x86/mm: Convert mmu context ia32_compat into a proper flags field 2020-10-26 13:46:47 +01:00
calling.h x86/entry: Split PUSH_AND_CLEAR_REGS into two submacros 2021-05-12 10:49:15 +02:00
common.c x86/entry: Use int everywhere for system call numbers 2021-05-25 10:07:00 +02:00
entry_32.S - turn the stack canary into a normal __percpu variable on 32-bit which 2021-04-27 17:45:09 -07:00
entry_64_compat.S x86/sev-es: Introduce ip_within_syscall_gap() helper 2021-03-08 14:22:17 +01:00
entry_64.S x86/entry/64: Sign-extend system calls on entry to int 2021-05-20 15:19:49 +02:00
Makefile x86/entry: Actually disable stack protector 2020-07-19 13:07:10 +02:00
syscall_32.c x86/syscalls: Stop filling syscall arrays with *_sys_ni_syscall 2021-05-20 15:03:59 +02:00
syscall_64.c x86/syscalls: Stop filling syscall arrays with *_sys_ni_syscall 2021-05-20 15:03:59 +02:00
syscall_x32.c x86/syscalls: Stop filling syscall arrays with *_sys_ni_syscall 2021-05-20 15:03:59 +02:00
thunk_32.S x86/entry: Remove unused THUNKs 2020-08-26 12:41:54 +02:00
thunk_64.S x86/entry: Remove put_ret_addr_in_rdi THUNK macro argument 2021-01-19 11:06:14 +01:00