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Historically a lot of these existed because we did not have a distinction between what was modular code and what was providing support to modules via EXPORT_SYMBOL and friends. That changed when we forked out support for the latter into the export.h file. This means we should be able to reduce the usage of module.h in code that is obj-y Makefile or bool Kconfig. The advantage in doing so is that module.h itself sources about 15 other headers; adding significantly to what we feed cpp, and it can obscure what headers we are effectively using. Since module.h was the source for init.h (for __init) and for export.h (for EXPORT_SYMBOL) we consider each obj-y/bool instance for the presence of either and replace as needed. In the case of the n32/o32 files, we have to get rid of a couple no-op MODULE_ tags to facilitate the module.h removal. They piggy back off the fs/ elf binary support, which is also a bool Kconfig. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/14032/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
114 lines
3.1 KiB
C
114 lines
3.1 KiB
C
/*
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* Support for n32 Linux/MIPS ELF binaries.
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* Author: Ralf Baechle (ralf@linux-mips.org)
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*
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* Copyright (C) 1999, 2001 Ralf Baechle
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* Copyright (C) 1999, 2001 Silicon Graphics, Inc.
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*
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* Heavily inspired by the 32-bit Sparc compat code which is
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* Copyright (C) 1995, 1996, 1997, 1998 David S. Miller (davem@redhat.com)
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* Copyright (C) 1995, 1996, 1997, 1998 Jakub Jelinek (jj@ultra.linux.cz)
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*/
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#define ELF_ARCH EM_MIPS
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#define ELF_CLASS ELFCLASS32
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#ifdef __MIPSEB__
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#define ELF_DATA ELFDATA2MSB;
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#else /* __MIPSEL__ */
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#define ELF_DATA ELFDATA2LSB;
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#endif
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/* ELF register definitions */
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#define ELF_NGREG 45
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#define ELF_NFPREG 33
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typedef unsigned long elf_greg_t;
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typedef elf_greg_t elf_gregset_t[ELF_NGREG];
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typedef double elf_fpreg_t;
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typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
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/*
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* This is used to ensure we don't load something for the wrong architecture.
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*/
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#define elf_check_arch elfn32_check_arch
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#define TASK32_SIZE 0x7fff8000UL
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#undef ELF_ET_DYN_BASE
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#define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2)
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#include <asm/processor.h>
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#include <linux/elfcore.h>
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#include <linux/compat.h>
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#include <linux/math64.h>
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#define elf_prstatus elf_prstatus32
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struct elf_prstatus32
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{
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struct elf_siginfo pr_info; /* Info associated with signal */
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short pr_cursig; /* Current signal */
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unsigned int pr_sigpend; /* Set of pending signals */
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unsigned int pr_sighold; /* Set of held signals */
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pid_t pr_pid;
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pid_t pr_ppid;
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pid_t pr_pgrp;
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pid_t pr_sid;
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struct compat_timeval pr_utime; /* User time */
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struct compat_timeval pr_stime; /* System time */
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struct compat_timeval pr_cutime;/* Cumulative user time */
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struct compat_timeval pr_cstime;/* Cumulative system time */
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elf_gregset_t pr_reg; /* GP registers */
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int pr_fpvalid; /* True if math co-processor being used. */
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};
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#define elf_prpsinfo elf_prpsinfo32
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struct elf_prpsinfo32
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{
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char pr_state; /* numeric process state */
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char pr_sname; /* char for pr_state */
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char pr_zomb; /* zombie */
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char pr_nice; /* nice val */
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unsigned int pr_flag; /* flags */
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__kernel_uid_t pr_uid;
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__kernel_gid_t pr_gid;
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pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid;
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/* Lots missing */
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char pr_fname[16]; /* filename of executable */
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char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */
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};
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#define elf_caddr_t u32
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#define init_elf_binfmt init_elfn32_binfmt
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#define jiffies_to_timeval jiffies_to_compat_timeval
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static __inline__ void
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jiffies_to_compat_timeval(unsigned long jiffies, struct compat_timeval *value)
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{
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/*
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* Convert jiffies to nanoseconds and separate with
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* one divide.
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*/
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u64 nsec = (u64)jiffies * TICK_NSEC;
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u32 rem;
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value->tv_sec = div_u64_rem(nsec, NSEC_PER_SEC, &rem);
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value->tv_usec = rem / NSEC_PER_USEC;
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}
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#define ELF_CORE_EFLAGS EF_MIPS_ABI2
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#undef TASK_SIZE
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#define TASK_SIZE TASK_SIZE32
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#undef cputime_to_timeval
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#define cputime_to_timeval cputime_to_compat_timeval
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static __inline__ void
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cputime_to_compat_timeval(const cputime_t cputime, struct compat_timeval *value)
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{
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unsigned long jiffies = cputime_to_jiffies(cputime);
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value->tv_usec = (jiffies % HZ) * (1000000L / HZ);
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value->tv_sec = jiffies / HZ;
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}
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#include "../../../fs/binfmt_elf.c"
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