Re: [PATCH 2/6] exec: simplify the compat syscall handling
From: Christoph Hellwig <hch@lst.de>
Date: 2020-06-15 15:09:36
Also in:
linux-arch, linux-fsdevel, linux-mips, linux-s390, linuxppc-dev, lkml, sparclinux
On Mon, Jun 15, 2020 at 04:46:15PM +0200, Arnd Bergmann wrote:
quoted hunk ↗ jump to hunk
How about this one:diff --git a/arch/x86/entry/syscall_x32.c b/arch/x86/entry/syscall_x32.c index 3d8d70d3896c..0ce15807cf54 100644 --- a/arch/x86/entry/syscall_x32.c +++ b/arch/x86/entry/syscall_x32.c@@ -16,6 +16,9 @@ #undef __SYSCALL_X32 #undef __SYSCALL_COMMON +#define __x32_sys_execve __x64_sys_execve +#define __x32_sys_execveat __x64_sys_execveat +
arch/x86/entry/syscall_x32.c:19:26: error: ‘__x64_sys_execve’ undeclared here (not in a function); did you mean ‘__x32_sys_execve’?
19 | #define __x32_sys_execve __x64_sys_execve
| ^~~~~~~~~~~~~~~~
arch/x86/entry/syscall_x32.c:22:39: note: in expansion of macro ‘__x32_sys_execve’
22 | #define __SYSCALL_X32(nr, sym) [nr] = __x32_##sym,
| ^~~~~~
./arch/x86/include/generated/asm/syscalls_64.h:344:1: note: in expansion of macro ‘__SYSCALL_X32’
344 | __SYSCALL_X32(520, sys_execve)
| ^~~~~~~~~~~~~
arch/x86/entry/syscall_x32.c:20:28: error: ‘__x64_sys_execveat’ undeclared here (not in a function); did you mean ‘__x32_sys_execveat’?
20 | #define __x32_sys_execveat __x64_sys_execveat
| ^~~~~~~~~~~~~~~~~~
arch/x86/entry/syscall_x32.c:22:39: note: in expansion of macro ‘__x32_sys_execveat’
22 | #define __SYSCALL_X32(nr, sym) [nr] = __x32_##sym,
| ^~~~~~
./arch/x86/include/generated/asm/syscalls_64.h:369:1: note: in expansion of macro ‘__SYSCALL_X32’
369 | __SYSCALL_X32(545, sys_execveat)
| ^~~~~~~~~~~~~
make[2]: *** [scripts/Makefile.build:281: arch/x86/entry/syscall_x32.o] Error 1
make[1]: *** [scripts/Makefile.build:497: arch/x86/entry] Error 2
make[1]: *** Waiting for unfinished jobs....
kernel/exit.o: warning: objtool: __x64_sys_exit_group()+0x14: unreachable instruction
make: *** [Makefile:1764: arch/x86] Error 2
make: *** Waiting for unfinished jobs....
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