ILP32 architectures, like x32 and n32, support 64-bit system call arguments, although they are nominally 32-bit architectures.
Add a new define which provides the size of system call arguments so generic libc code can use the best system call for those. Signed-off-by: Thomas Weißschuh <[email protected]> --- tools/include/nolibc/arch-mips.h | 1 + tools/include/nolibc/arch-x86.h | 2 ++ tools/include/nolibc/arch.h | 5 +++++ 3 files changed, 8 insertions(+) diff --git a/tools/include/nolibc/arch-mips.h b/tools/include/nolibc/arch-mips.h index 21b9959a08e2..c0da0cc309ce 100644 --- a/tools/include/nolibc/arch-mips.h +++ b/tools/include/nolibc/arch-mips.h @@ -72,6 +72,7 @@ #define _NOLIBC_SYSCALL_STACK_UNRESERVE #define _NOLIBC_SYSCALL_REG register long long +#define __NOLIBC_BITS_PER_SYSCALL_ARG 64 #endif /* _ABIO32 */ diff --git a/tools/include/nolibc/arch-x86.h b/tools/include/nolibc/arch-x86.h index 577e9b682eb3..0638f9316749 100644 --- a/tools/include/nolibc/arch-x86.h +++ b/tools/include/nolibc/arch-x86.h @@ -386,5 +386,7 @@ __asm__ ( ".popsection\n" ); +#define __NOLIBC_BITS_PER_SYSCALL_ARG 64 + #endif /* !defined(__x86_64__) */ #endif /* _NOLIBC_ARCH_X86_H */ diff --git a/tools/include/nolibc/arch.h b/tools/include/nolibc/arch.h index 24e0ec4fb2db..79ed5900f2a7 100644 --- a/tools/include/nolibc/arch.h +++ b/tools/include/nolibc/arch.h @@ -40,4 +40,9 @@ #error Unsupported Architecture #endif + +#ifndef __NOLIBC_BITS_PER_SYSCALL_ARG +#define __NOLIBC_BITS_PER_SYSCALL_ARG __BITS_PER_LONG +#endif + #endif /* _NOLIBC_ARCH_H */ -- 2.55.0
