score: add old syscall support (cf52c468) · Commits · e / devices / android_kernel_teracube_emerald

arch/score/include/asm/unistd.h

+5 −0

Original line number	Diff line number	Diff line
		@@ -3,6 +3,11 @@

		#define __ARCH_HAVE_MMU

		#define __ARCH_WANT_SYSCALL_NO_AT
		#define __ARCH_WANT_SYSCALL_NO_FLAGS
		#define __ARCH_WANT_SYSCALL_OFF_T
		#define __ARCH_WANT_SYSCALL_DEPRECATED

		#include <asm-generic/unistd.h>

		#endif /* _ASM_SCORE_UNISTD_H */

+13 −0

Original line number	Diff line number	Diff line
		@@ -499,3 +499,16 @@ ENTRY(sys_sigaltstack)
		mv r4, r0
		la r8, score_sigaltstack
		br r8

		#ifdef __ARCH_WANT_SYSCALL_DEPRECATED
		ENTRY(sys_fork)
		mv r4, r0
		la r8, score_fork
		br r8

		ENTRY(sys_vfork)
		mv r4, r0
		la r8, score_vfork
		br r8
		#endif /* __ARCH_WANT_SYSCALL_DEPRECATED */

+22 −2

Original line number	Diff line number	Diff line
		@@ -25,6 +25,7 @@

		#include <linux/file.h>
		#include <linux/fs.h>
		#include <linux/mm.h>
		#include <linux/mman.h>
		#include <linux/module.h>
		#include <linux/unistd.h>
		@@ -49,8 +50,7 @@ sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
		}

		down_write(&current->mm->mmap_sem);
		error = do_mmap_pgoff(file, addr, len, prot, flags,
		pgoff >> (PAGE_SHIFT - 12));
		error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
		up_write(&current->mm->mmap_sem);

		if (file)
		@@ -59,6 +59,19 @@ sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
		return error;
		}

		asmlinkage long
		sys_mmap(unsigned long addr, unsigned long len, unsigned long prot,
		unsigned long flags, unsigned long fd, off_t pgoff)
		{
		return sys_mmap2(addr, len, prot, flags, fd, pgoff >> PAGE_SHIFT);
		}

		asmlinkage long
		score_fork(struct pt_regs *regs)
		{
		return do_fork(SIGCHLD, regs->regs[0], regs, 0, NULL, NULL);
		}

		/*
		* Clone a task - this clones the calling program thread.
		* This is called indirectly via a small wrapper
		@@ -81,6 +94,13 @@ score_clone(struct pt_regs *regs)
		parent_tidptr, child_tidptr);
		}

		asmlinkage long
		score_vfork(struct pt_regs *regs)
		{
		return do_fork(CLONE_VFORK \| CLONE_VM \| SIGCHLD,
		regs->regs[0], regs, 0, NULL, NULL);
		}

		/*
		* sys_execve() executes a new program.
		* This is called indirectly via a small wrapper