cregit-Linux how code gets into the kernel

Release 4.10 arch/powerpc/kernel/sys_ppc32.c

/*
 * sys_ppc32.c: Conversion between 32bit and 64bit native syscalls.
 *
 * Copyright (C) 2001 IBM
 * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
 *
 * These routines maintain argument size conversion between 32bit and 64bit
 * environment.
 *
 *      This program is free software; you can redistribute it and/or
 *      modify it under the terms of the GNU General Public License
 *      as published by the Free Software Foundation; either version
 *      2 of the License, or (at your option) any later version.
 */

#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/fs.h> 
#include <linux/mm.h> 
#include <linux/file.h> 
#include <linux/signal.h>
#include <linux/resource.h>
#include <linux/times.h>
#include <linux/smp.h>
#include <linux/sem.h>
#include <linux/msg.h>
#include <linux/shm.h>
#include <linux/poll.h>
#include <linux/personality.h>
#include <linux/stat.h>
#include <linux/mman.h>
#include <linux/in.h>
#include <linux/syscalls.h>
#include <linux/unistd.h>
#include <linux/sysctl.h>
#include <linux/binfmts.h>
#include <linux/security.h>
#include <linux/compat.h>
#include <linux/ptrace.h>
#include <linux/elf.h>
#include <linux/ipc.h>
#include <linux/slab.h>

#include <asm/ptrace.h>
#include <asm/types.h>
#include <linux/uaccess.h>
#include <asm/unistd.h>
#include <asm/time.h>
#include <asm/mmu_context.h>
#include <asm/ppc-pci.h>
#include <asm/syscalls.h>
#include <asm/switch_to.h>



asmlinkage long ppc32_select(u32 n, compat_ulong_t __user *inp, compat_ulong_t __user *outp, compat_ulong_t __user *exp, compat_uptr_t tvp_x) { /* sign extend n */ return compat_sys_select((int)n, inp, outp, exp, compat_ptr(tvp_x)); }

Contributors

PersonTokensPropCommitsCommitProp
anton blanchardanton blanchard3572.92%266.67%
andrew mortonandrew morton1327.08%133.33%
Total48100.00%3100.00%


unsigned long compat_sys_mmap2(unsigned long addr, size_t len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long pgoff) { /* This should remain 12 even if PAGE_SIZE changes */ return sys_mmap(addr, len, prot, flags, fd, pgoff << 12); }

Contributors

PersonTokensPropCommitsCommitProp
anton blanchardanton blanchard2756.25%266.67%
al viroal viro2143.75%133.33%
Total48100.00%3100.00%

/* * long long munging: * The 32 bit ABI passes long longs in an odd even register pair. */
compat_ssize_t compat_sys_pread64(unsigned int fd, char __user *ubuf, compat_size_t count, u32 reg6, u32 poshi, u32 poslo) { return sys_pread64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo); }

Contributors

PersonTokensPropCommitsCommitProp
anton blanchardanton blanchard4595.74%133.33%
stephen rothwellstephen rothwell12.13%133.33%
linus torvaldslinus torvalds12.13%133.33%
Total47100.00%3100.00%


compat_ssize_t compat_sys_pwrite64(unsigned int fd, const char __user *ubuf, compat_size_t count, u32 reg6, u32 poshi, u32 poslo) { return sys_pwrite64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo); }

Contributors

PersonTokensPropCommitsCommitProp
anton blanchardanton blanchard4593.75%240.00%
david howellsdavid howells12.08%120.00%
linus torvaldslinus torvalds12.08%120.00%
stephen rothwellstephen rothwell12.08%120.00%
Total48100.00%5100.00%


compat_ssize_t compat_sys_readahead(int fd, u32 r4, u32 offhi, u32 offlo, u32 count) { return sys_readahead(fd, ((loff_t)offhi << 32) | offlo, count); }

Contributors

PersonTokensPropCommitsCommitProp
anton blanchardanton blanchard3897.44%266.67%
stephen rothwellstephen rothwell12.56%133.33%
Total39100.00%3100.00%


asmlinkage int compat_sys_truncate64(const char __user * path, u32 reg4, unsigned long high, unsigned long low) { return sys_truncate(path, (high << 32) | low); }

Contributors

PersonTokensPropCommitsCommitProp
anton blanchardanton blanchard3594.59%250.00%
linus torvaldslinus torvalds12.70%125.00%
stephen rothwellstephen rothwell12.70%125.00%
Total37100.00%4100.00%


asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo, u32 lenhi, u32 lenlo) { return sys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo, ((loff_t)lenhi << 32) | lenlo); }

Contributors

PersonTokensPropCommitsCommitProp
amit aroraamit arora54100.00%1100.00%
Total54100.00%1100.00%


asmlinkage int compat_sys_ftruncate64(unsigned int fd, u32 reg4, unsigned long high, unsigned long low) { return sys_ftruncate(fd, (high << 32) | low); }

Contributors

PersonTokensPropCommitsCommitProp
anton blanchardanton blanchard3497.14%266.67%
stephen rothwellstephen rothwell12.86%133.33%
Total35100.00%3100.00%


long ppc32_fadvise64(int fd, u32 unused, u32 offset_high, u32 offset_low, size_t len, int advice) { return sys_fadvise64(fd, (u64)offset_high << 32 | offset_low, len, advice); }

Contributors

PersonTokensPropCommitsCommitProp
anton blanchardanton blanchard42100.00%1100.00%
Total42100.00%1100.00%


asmlinkage long compat_sys_sync_file_range2(int fd, unsigned int flags, unsigned offset_hi, unsigned offset_lo, unsigned nbytes_hi, unsigned nbytes_lo) { loff_t offset = ((loff_t)offset_hi << 32) | offset_lo; loff_t nbytes = ((loff_t)nbytes_hi << 32) | nbytes_lo; return sys_sync_file_range(fd, offset, nbytes, flags); }

Contributors

PersonTokensPropCommitsCommitProp
david woodhousedavid woodhouse65100.00%1100.00%
Total65100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
anton blanchardanton blanchard37765.79%933.33%
david woodhousedavid woodhouse6511.34%13.70%
amit aroraamit arora549.42%13.70%
andrew mortonandrew morton254.36%311.11%
al viroal viro213.66%13.70%
stephen rothwellstephen rothwell61.05%27.41%
david howellsdavid howells40.70%27.41%
linus torvaldslinus torvalds40.70%27.41%
arnd bergmannarnd bergmann30.52%13.70%
tejun heotejun heo30.52%13.70%
daniel jacobowitzdaniel jacobowitz30.52%13.70%
greg kroah-hartmangreg kroah-hartman30.52%13.70%
adrian bunkadrian bunk30.52%13.70%
benjamin herrenschmidtbenjamin herrenschmidt20.35%13.70%
Total573100.00%27100.00%
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