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[MIPS] IRIX: Linux coding style cleanups.

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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle 2007-02-05 00:05:08 +00:00
parent 3f21cdee41
commit c917061751
1 changed files with 173 additions and 148 deletions
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321
arch/mips/kernel/irixelf.c
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@ -10,6 +10,8 @@
* Copyright (C) 1996 - 2004 David S. Miller <dm@engr.sgi.com>
* Copyright (C) 2004 - 2005 Steven J. Hill <sjhill@realitydiluted.com>
*/
#undef DEBUG
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/stat.h>
@ -40,8 +42,6 @@
#include <linux/elf.h>
#undef DEBUG
static int load_irix_binary(struct linux_binprm * bprm, struct pt_regs * regs);
static int load_irix_library(struct file *);
static int irix_core_dump(long signr, struct pt_regs * regs,
@ -52,72 +52,102 @@ static struct linux_binfmt irix_format = {
irix_core_dump, PAGE_SIZE
};
#ifdef DEBUG
/* Debugging routines. */
static char *get_elf_p_type(Elf32_Word p_type)
{
int i = (int) p_type;
#ifdef DEBUG
switch (p_type) {
case PT_NULL:
return "PT_NULL";
break;
switch(i) {
case PT_NULL: return("PT_NULL"); break;
case PT_LOAD: return("PT_LOAD"); break;
case PT_DYNAMIC: return("PT_DYNAMIC"); break;
case PT_INTERP: return("PT_INTERP"); break;
case PT_NOTE: return("PT_NOTE"); break;
case PT_SHLIB: return("PT_SHLIB"); break;
case PT_PHDR: return("PT_PHDR"); break;
case PT_LOPROC: return("PT_LOPROC/REGINFO"); break;
case PT_HIPROC: return("PT_HIPROC"); break;
default: return("PT_BOGUS"); break;
case PT_LOAD:
return "PT_LOAD";
break;
case PT_DYNAMIC:
return "PT_DYNAMIC";
break;
case PT_INTERP:
return "PT_INTERP";
break;
case PT_NOTE:
return "PT_NOTE";
break;
case PT_SHLIB:
return "PT_SHLIB";
break;
case PT_PHDR:
return "PT_PHDR";
break;
case PT_LOPROC:
return "PT_LOPROC/REGINFO";
break;
case PT_HIPROC:
return "PT_HIPROC";
break;
default:
return "PT_BOGUS";
break;
}
#endif
}
static void print_elfhdr(struct elfhdr *ehp)
{
int i;
printk("ELFHDR: e_ident<");
for(i = 0; i < (EI_NIDENT - 1); i++) printk("%x ", ehp->e_ident[i]);
printk("%x>\n", ehp->e_ident[i]);
printk(" e_type[%04x] e_machine[%04x] e_version[%08lx]\n",
(unsigned short) ehp->e_type, (unsigned short) ehp->e_machine,
(unsigned long) ehp->e_version);
printk(" e_entry[%08lx] e_phoff[%08lx] e_shoff[%08lx] "
"e_flags[%08lx]\n",
(unsigned long) ehp->e_entry, (unsigned long) ehp->e_phoff,
(unsigned long) ehp->e_shoff, (unsigned long) ehp->e_flags);
printk(" e_ehsize[%04x] e_phentsize[%04x] e_phnum[%04x]\n",
(unsigned short) ehp->e_ehsize, (unsigned short) ehp->e_phentsize,
(unsigned short) ehp->e_phnum);
printk(" e_shentsize[%04x] e_shnum[%04x] e_shstrndx[%04x]\n",
(unsigned short) ehp->e_shentsize, (unsigned short) ehp->e_shnum,
(unsigned short) ehp->e_shstrndx);
pr_debug("ELFHDR: e_ident<");
for (i = 0; i < (EI_NIDENT - 1); i++)
pr_debug("%x ", ehp->e_ident[i]);
pr_debug("%x>\n", ehp->e_ident[i]);
pr_debug(" e_type[%04x] e_machine[%04x] e_version[%08lx]\n",
(unsigned short) ehp->e_type, (unsigned short) ehp->e_machine,
(unsigned long) ehp->e_version);
pr_debug(" e_entry[%08lx] e_phoff[%08lx] e_shoff[%08lx] "
"e_flags[%08lx]\n",
(unsigned long) ehp->e_entry, (unsigned long) ehp->e_phoff,
(unsigned long) ehp->e_shoff, (unsigned long) ehp->e_flags);
pr_debug(" e_ehsize[%04x] e_phentsize[%04x] e_phnum[%04x]\n",
(unsigned short) ehp->e_ehsize,
(unsigned short) ehp->e_phentsize,
(unsigned short) ehp->e_phnum);
pr_debug(" e_shentsize[%04x] e_shnum[%04x] e_shstrndx[%04x]\n",
(unsigned short) ehp->e_shentsize,
(unsigned short) ehp->e_shnum,
(unsigned short) ehp->e_shstrndx);
}
static void print_phdr(int i, struct elf_phdr *ep)
{
printk("PHDR[%d]: p_type[%s] p_offset[%08lx] p_vaddr[%08lx] "
"p_paddr[%08lx]\n", i, get_elf_p_type(ep->p_type),
(unsigned long) ep->p_offset, (unsigned long) ep->p_vaddr,
(unsigned long) ep->p_paddr);
printk(" p_filesz[%08lx] p_memsz[%08lx] p_flags[%08lx] "
"p_align[%08lx]\n", (unsigned long) ep->p_filesz,
(unsigned long) ep->p_memsz, (unsigned long) ep->p_flags,
(unsigned long) ep->p_align);
pr_debug("PHDR[%d]: p_type[%s] p_offset[%08lx] p_vaddr[%08lx] "
"p_paddr[%08lx]\n", i, get_elf_p_type(ep->p_type),
(unsigned long) ep->p_offset, (unsigned long) ep->p_vaddr,
(unsigned long) ep->p_paddr);
pr_debug(" p_filesz[%08lx] p_memsz[%08lx] p_flags[%08lx] "
"p_align[%08lx]\n", (unsigned long) ep->p_filesz,
(unsigned long) ep->p_memsz, (unsigned long) ep->p_flags,
(unsigned long) ep->p_align);
}
static void dump_phdrs(struct elf_phdr *ep, int pnum)
{
int i;
for(i = 0; i < pnum; i++, ep++) {
if((ep->p_type == PT_LOAD) ||
(ep->p_type == PT_INTERP) ||
(ep->p_type == PT_PHDR))
for (i = 0; i < pnum; i++, ep++) {
if ((ep->p_type == PT_LOAD) ||
(ep->p_type == PT_INTERP) ||
(ep->p_type == PT_PHDR))
print_phdr(i, ep);
}
}
#endif /* DEBUG */
static void set_brk(unsigned long start, unsigned long end)
{
@ -156,11 +186,10 @@ static unsigned long * create_irix_tables(char * p, int argc, int envc,
elf_addr_t *envp;
elf_addr_t *sp, *csp;
#ifdef DEBUG
printk("create_irix_tables: p[%p] argc[%d] envc[%d] "
"load_addr[%08x] interp_load_addr[%08x]\n",
p, argc, envc, load_addr, interp_load_addr);
#endif
pr_debug("create_irix_tables: p[%p] argc[%d] envc[%d] "
"load_addr[%08x] interp_load_addr[%08x]\n",
p, argc, envc, load_addr, interp_load_addr);
sp = (elf_addr_t *) (~15UL & (unsigned long) p);
csp = sp;
csp -= exec ? DLINFO_ITEMS*2 : 2;
@ -181,7 +210,7 @@ static unsigned long * create_irix_tables(char * p, int argc, int envc,
sp -= 2;
NEW_AUX_ENT(0, AT_NULL, 0);
if(exec) {
if (exec) {
sp -= 11*2;
NEW_AUX_ENT (0, AT_PHDR, load_addr + exec->e_phoff);
@ -245,9 +274,7 @@ static unsigned int load_irix_interp(struct elfhdr * interp_elf_ex,
last_bss = 0;
error = load_addr = 0;
#ifdef DEBUG
print_elfhdr(interp_elf_ex);
#endif
/* First of all, some simple consistency checks */
if ((interp_elf_ex->e_type != ET_EXEC &&
@ -258,7 +285,7 @@ static unsigned int load_irix_interp(struct elfhdr * interp_elf_ex,
}
/* Now read in all of the header information */
if(sizeof(struct elf_phdr) * interp_elf_ex->e_phnum > PAGE_SIZE) {
if (sizeof(struct elf_phdr) * interp_elf_ex->e_phnum > PAGE_SIZE) {
printk("IRIX interp header bigger than a page (%d)\n",
(sizeof(struct elf_phdr) * interp_elf_ex->e_phnum));
return 0xffffffff;
@ -267,15 +294,15 @@ static unsigned int load_irix_interp(struct elfhdr * interp_elf_ex,
elf_phdata = kmalloc(sizeof(struct elf_phdr) * interp_elf_ex->e_phnum,
GFP_KERNEL);
if(!elf_phdata) {
printk("Cannot kmalloc phdata for IRIX interp.\n");
return 0xffffffff;
if (!elf_phdata) {
printk("Cannot kmalloc phdata for IRIX interp.\n");
return 0xffffffff;
}
/* If the size of this structure has changed, then punt, since
* we will be doing the wrong thing.
*/
if(interp_elf_ex->e_phentsize != 32) {
if (interp_elf_ex->e_phentsize != 32) {
printk("IRIX interp e_phentsize == %d != 32 ",
interp_elf_ex->e_phentsize);
kfree(elf_phdata);
@ -286,61 +313,71 @@ static unsigned int load_irix_interp(struct elfhdr * interp_elf_ex,
(char *) elf_phdata,
sizeof(struct elf_phdr) * interp_elf_ex->e_phnum);
#ifdef DEBUG
dump_phdrs(elf_phdata, interp_elf_ex->e_phnum);
#endif
eppnt = elf_phdata;
for(i=0; i<interp_elf_ex->e_phnum; i++, eppnt++) {
if(eppnt->p_type == PT_LOAD) {
int elf_type = MAP_PRIVATE | MAP_DENYWRITE;
int elf_prot = 0;
unsigned long vaddr = 0;
if (eppnt->p_flags & PF_R) elf_prot = PROT_READ;
if (eppnt->p_flags & PF_W) elf_prot |= PROT_WRITE;
if (eppnt->p_flags & PF_X) elf_prot |= PROT_EXEC;
elf_type |= MAP_FIXED;
vaddr = eppnt->p_vaddr;
for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) {
if (eppnt->p_type == PT_LOAD) {
int elf_type = MAP_PRIVATE | MAP_DENYWRITE;
int elf_prot = 0;
unsigned long vaddr = 0;
if (eppnt->p_flags & PF_R)
elf_prot = PROT_READ;
if (eppnt->p_flags & PF_W)
elf_prot |= PROT_WRITE;
if (eppnt->p_flags & PF_X)
elf_prot |= PROT_EXEC;
elf_type |= MAP_FIXED;
vaddr = eppnt->p_vaddr;
pr_debug("INTERP do_mmap(%p, %08lx, %08lx, %08lx, %08lx, %08lx) ",
interpreter, vaddr,
(unsigned long) (eppnt->p_filesz + (eppnt->p_vaddr & 0xfff)),
(unsigned long) elf_prot, (unsigned long) elf_type,
(unsigned long) (eppnt->p_offset & 0xfffff000));
down_write(&current->mm->mmap_sem);
error = do_mmap(interpreter, vaddr,
eppnt->p_filesz + (eppnt->p_vaddr & 0xfff),
elf_prot, elf_type,
eppnt->p_offset & 0xfffff000);
up_write(&current->mm->mmap_sem);
pr_debug("INTERP do_mmap"
"(%p, %08lx, %08lx, %08lx, %08lx, %08lx) ",
interpreter, vaddr,
(unsigned long)
(eppnt->p_filesz + (eppnt->p_vaddr & 0xfff)),
(unsigned long)
elf_prot, (unsigned long) elf_type,
(unsigned long)
(eppnt->p_offset & 0xfffff000));
if(error < 0 && error > -1024) {
printk("Aieee IRIX interp mmap error=%d\n", error);
break; /* Real error */
}
pr_debug("error=%08lx ", (unsigned long) error);
if(!load_addr && interp_elf_ex->e_type == ET_DYN) {
load_addr = error;
pr_debug("load_addr = error ");
}
down_write(&current->mm->mmap_sem);
error = do_mmap(interpreter, vaddr,
eppnt->p_filesz + (eppnt->p_vaddr & 0xfff),
elf_prot, elf_type,
eppnt->p_offset & 0xfffff000);
up_write(&current->mm->mmap_sem);
/* Find the end of the file mapping for this phdr, and keep
* track of the largest address we see for this.
*/
k = eppnt->p_vaddr + eppnt->p_filesz;
if(k > elf_bss) elf_bss = k;
if (error < 0 && error > -1024) {
printk("Aieee IRIX interp mmap error=%d\n",
error);
break; /* Real error */
}
pr_debug("error=%08lx ", (unsigned long) error);
if (!load_addr && interp_elf_ex->e_type == ET_DYN) {
load_addr = error;
pr_debug("load_addr = error ");
}
/* Do the same thing for the memory mapping - between
* elf_bss and last_bss is the bss section.
*/
k = eppnt->p_memsz + eppnt->p_vaddr;
if(k > last_bss) last_bss = k;
pr_debug("\n");
}
/*
* Find the end of the file mapping for this phdr, and
* keep track of the largest address we see for this.
*/
k = eppnt->p_vaddr + eppnt->p_filesz;
if (k > elf_bss)
elf_bss = k;
/* Do the same thing for the memory mapping - between
* elf_bss and last_bss is the bss section.
*/
k = eppnt->p_memsz + eppnt->p_vaddr;
if (k > last_bss)
last_bss = k;
pr_debug("\n");
}
}
/* Now use mmap to map the library into memory. */
if(error < 0 && error > -1024) {
if (error < 0 && error > -1024) {
pr_debug("got error %d\n", error);
kfree(elf_phdata);
return 0xffffffff;
@ -377,7 +414,7 @@ static int verify_binary(struct elfhdr *ehp, struct linux_binprm *bprm)
return -ENOEXEC;
/* First of all, some simple consistency checks */
if((ehp->e_type != ET_EXEC && ehp->e_type != ET_DYN) ||
if ((ehp->e_type != ET_EXEC && ehp->e_type != ET_DYN) ||
!bprm->file->f_op->mmap) {
return -ENOEXEC;
}
@ -388,7 +425,7 @@ static int verify_binary(struct elfhdr *ehp, struct linux_binprm *bprm)
* XXX all registers as 64bits on cpu's capable of this at
* XXX exception time plus frob the XTLB exception vector.
*/
if((ehp->e_flags & EF_MIPS_ABI2))
if ((ehp->e_flags & EF_MIPS_ABI2))
return -ENOEXEC;
return 0;
@ -410,7 +447,7 @@ static inline int look_for_irix_interpreter(char **name,
struct file *file = NULL;
*name = NULL;
for(i = 0; i < pnum; i++, epp++) {
for (i = 0; i < pnum; i++, epp++) {
if (epp->p_type != PT_INTERP)
continue;
@ -467,8 +504,8 @@ static inline void map_executable(struct file *fp, struct elf_phdr *epp, int pnu
unsigned int tmp;
int i, prot;
for(i = 0; i < pnum; i++, epp++) {
if(epp->p_type != PT_LOAD)
for (i = 0; i < pnum; i++, epp++) {
if (epp->p_type != PT_LOAD)
continue;
/* Map it. */
@ -483,23 +520,23 @@ static inline void map_executable(struct file *fp, struct elf_phdr *epp, int pnu
up_write(&current->mm->mmap_sem);
/* Fixup location tracking vars. */
if((epp->p_vaddr & 0xfffff000) < *estack)
if ((epp->p_vaddr & 0xfffff000) < *estack)
*estack = (epp->p_vaddr & 0xfffff000);
if(!*laddr)
if (!*laddr)
*laddr = epp->p_vaddr - epp->p_offset;
if(epp->p_vaddr < *scode)
if (epp->p_vaddr < *scode)
*scode = epp->p_vaddr;
tmp = epp->p_vaddr + epp->p_filesz;
if(tmp > *ebss)
if (tmp > *ebss)
*ebss = tmp;
if((epp->p_flags & PF_X) && *ecode < tmp)
if ((epp->p_flags & PF_X) && *ecode < tmp)
*ecode = tmp;
if(*edata < tmp)
if (*edata < tmp)
*edata = tmp;
tmp = epp->p_vaddr + epp->p_memsz;
if(tmp > *ebrk)
if (tmp > *ebrk)
*ebrk = tmp;
}
@ -513,12 +550,12 @@ static inline int map_interpreter(struct elf_phdr *epp, struct elfhdr *ihp,
int i;
*eentry = 0xffffffff;
for(i = 0; i < pnum; i++, epp++) {
if(epp->p_type != PT_INTERP)
for (i = 0; i < pnum; i++, epp++) {
if (epp->p_type != PT_INTERP)
continue;
/* We should have fielded this error elsewhere... */
if(*eentry != 0xffffffff)
if (*eentry != 0xffffffff)
return -1;
set_fs(old_fs);
@ -604,9 +641,7 @@ static int load_irix_binary(struct linux_binprm * bprm, struct pt_regs * regs)
if (elf_ex.e_shnum > 20)
goto out;
#ifdef DEBUG
print_elfhdr(&elf_ex);
#endif
/* Now read in all of the header information */
size = elf_ex.e_phentsize * elf_ex.e_phnum;
@ -622,13 +657,11 @@ static int load_irix_binary(struct linux_binprm * bprm, struct pt_regs * regs)
if (retval < 0)
goto out_free_ph;
#ifdef DEBUG
dump_phdrs(elf_phdata, elf_ex.e_phnum);
#endif
/* Set some things for later. */
for(i = 0; i < elf_ex.e_phnum; i++) {
switch(elf_phdata[i].p_type) {
for (i = 0; i < elf_ex.e_phnum; i++) {
switch (elf_phdata[i].p_type) {
case PT_INTERP:
has_interp = 1;
elf_ihdr = &elf_phdata[i];
@ -667,7 +700,7 @@ static int load_irix_binary(struct linux_binprm * bprm, struct pt_regs * regs)
if (elf_interpreter) {
retval = verify_irix_interpreter(&interp_elf_ex);
if(retval)
if (retval)
goto out_free_interp;
}
@ -706,12 +739,12 @@ static int load_irix_binary(struct linux_binprm * bprm, struct pt_regs * regs)
&load_addr, &start_code, &elf_bss, &end_code,
&end_data, &elf_brk);
if(elf_interpreter) {
if (elf_interpreter) {
retval = map_interpreter(elf_phdata, &interp_elf_ex,
interpreter, &interp_load_addr,
elf_ex.e_phnum, old_fs, &elf_entry);
kfree(elf_interpreter);
if(retval) {
if (retval) {
set_fs(old_fs);
printk("Unable to load IRIX ELF interpreter\n");
send_sig(SIGSEGV, current, 0);
@ -809,12 +842,12 @@ static int load_irix_library(struct file *file)
return -ENOEXEC;
/* First of all, some simple consistency checks. */
if(elf_ex.e_type != ET_EXEC || elf_ex.e_phnum > 2 ||
if (elf_ex.e_type != ET_EXEC || elf_ex.e_phnum > 2 ||
!file->f_op->mmap)
return -ENOEXEC;
/* Now read in all of the header information. */
if(sizeof(struct elf_phdr) * elf_ex.e_phnum > PAGE_SIZE)
if (sizeof(struct elf_phdr) * elf_ex.e_phnum > PAGE_SIZE)
return -ENOEXEC;
elf_phdata = kmalloc(sizeof(struct elf_phdr) * elf_ex.e_phnum, GFP_KERNEL);
@ -825,15 +858,15 @@ static int load_irix_library(struct file *file)
sizeof(struct elf_phdr) * elf_ex.e_phnum);
j = 0;
for(i=0; i<elf_ex.e_phnum; i++)
if((elf_phdata + i)->p_type == PT_LOAD) j++;
for (i=0; i<elf_ex.e_phnum; i++)
if ((elf_phdata + i)->p_type == PT_LOAD) j++;
if(j != 1) {
if (j != 1) {
kfree(elf_phdata);
return -ENOEXEC;
}
while(elf_phdata->p_type != PT_LOAD) elf_phdata++;
while (elf_phdata->p_type != PT_LOAD) elf_phdata++;
/* Now use mmap to map the library into memory. */
down_write(&current->mm->mmap_sem);
@ -889,9 +922,7 @@ unsigned long irix_mapelf(int fd, struct elf_phdr __user *user_phdrp, int cnt)
return -EFAULT;
}
#ifdef DEBUG
dump_phdrs(user_phdrp, cnt);
#endif
for (i = 0; i < cnt; i++, hp++) {
if (__get_user(type, &hp->p_type))
@ -905,14 +936,14 @@ unsigned long irix_mapelf(int fd, struct elf_phdr __user *user_phdrp, int cnt)
filp = fget(fd);
if (!filp)
return -EACCES;
if(!filp->f_op) {
if (!filp->f_op) {
printk("irix_mapelf: Bogon filp!\n");
fput(filp);
return -EACCES;
}
hp = user_phdrp;
for(i = 0; i < cnt; i++, hp++) {
for (i = 0; i < cnt; i++, hp++) {
int prot;
retval = __get_user(vaddr, &hp->p_vaddr);
@ -1015,8 +1046,6 @@ static int notesize(struct memelfnote *en)
return sz;
}
/* #define DEBUG */
#define DUMP_WRITE(addr, nr) \
if (!dump_write(file, (addr), (nr))) \
goto end_coredump;
@ -1093,9 +1122,7 @@ static int irix_core_dump(long signr, struct pt_regs * regs, struct file *file)
segs++;
}
#ifdef DEBUG
printk("irix_core_dump: %d segs taking %d bytes\n", segs, size);
#endif
pr_debug("irix_core_dump: %d segs taking %d bytes\n", segs, size);
/* Set up header. */
memcpy(elf.e_ident, ELFMAG, SELFMAG);
@ -1221,7 +1248,7 @@ static int irix_core_dump(long signr, struct pt_regs * regs, struct file *file)
struct elf_phdr phdr;
int sz = 0;
for(i = 0; i < numnote; i++)
for (i = 0; i < numnote; i++)
sz += notesize(&notes[i]);
phdr.p_type = PT_NOTE;
@ -1241,7 +1268,7 @@ static int irix_core_dump(long signr, struct pt_regs * regs, struct file *file)
dataoff = offset = roundup(offset, PAGE_SIZE);
/* Write program headers for segments dump. */
for(vma = current->mm->mmap, i = 0;
for (vma = current->mm->mmap, i = 0;
i < segs && vma != NULL; vma = vma->vm_next) {
struct elf_phdr phdr;
size_t sz;
@ -1267,7 +1294,7 @@ static int irix_core_dump(long signr, struct pt_regs * regs, struct file *file)
DUMP_WRITE(&phdr, sizeof(phdr));
}
for(i = 0; i < numnote; i++)
for (i = 0; i < numnote; i++)
if (!writenote(&notes[i], file))
goto end_coredump;
@ -1275,7 +1302,7 @@ static int irix_core_dump(long signr, struct pt_regs * regs, struct file *file)
DUMP_SEEK(dataoff);
for(i = 0, vma = current->mm->mmap;
for (i = 0, vma = current->mm->mmap;
i < segs && vma != NULL;
vma = vma->vm_next) {
unsigned long addr = vma->vm_start;
@ -1284,9 +1311,7 @@ static int irix_core_dump(long signr, struct pt_regs * regs, struct file *file)
if (!maydump(vma))
continue;
i++;
#ifdef DEBUG
printk("elf_core_dump: writing %08lx %lx\n", addr, len);
#endif
pr_debug("elf_core_dump: writing %08lx %lx\n", addr, len);
DUMP_WRITE((void __user *)addr, len);
}