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77 Commits

Author SHA1 Message Date
jdolecek
cedc87712e ELF copyargs: at the time this is executed, process's ucred doesn't 
contain the new uid/gid for suid/sgid binaries yet; determine AT_EUID
and AT_EGID by checking executed program vnode attributes in this case
 2002-11-13 15:49:44 +00:00
chs
993948e989 count executable image pages as executable for vm-usage purposes. 
also, always do the VTEXT vs. v_writecount mutual exclusion
(which we previously skipped if the text or data segment was empty).
 2002-10-05 22:34:02 +00:00
junyoung
8b656df79c Remove unnecessary code. 2002-10-04 03:17:37 +00:00
provos
0f09ed48a5 remove trailing \n in panic(). approved perry. 2002-09-27 15:35:29 +00:00
mycroft
30d477000a The entry point address for the interpreter must be adjusted by the text 
section VMA on all platforms.  It just happens to 0 normally on everything but
MIPS.
 2002-09-12 16:57:44 +00:00
christos
fea7af3bbe - Implement passing AT_{R,E}{U,G}ID in the elf aux vector. 
- Pass struct proc to copyargs
- fix svr4_copyargs functions
 2002-08-26 21:07:38 +00:00
simonb
4c67158999 Use "#ifdef __mips__" instead of "#ifdef mips"; shared libraries work 
for kernels compiled with gcc 3.x.
 2002-06-03 13:07:00 +00:00
thorpej
07d023a3aa Define ELF32_EHDR_FLAGS_OK()/ELF64_EHDR_FLAGS_OK() and use it 
as an added measure to make sure that we can execute a binary.
These default to (1) if elf_machdep.h does not override them.

On Sun2, ELF32_EHDR_FLAGS_OK() checks for the presense of EF_M68000,
since the 68010 cannot run binaries for the 68020-and-up.
 2002-01-28 22:15:54 +00:00
lukem
adc783d537 add RCSIDs 2001-11-12 15:25:01 +00:00
thorpej
e8ee04475d - Add a new vnode flag VEXECMAP, which indicates that a vnode has 
executable mappings.  Stop overloading VTEXT for this purpose (VTEXT
  also has another meaning).
- Rename vn_marktext() to vn_markexec(), and use it when executable
  mappings of a vnode are established.
- In places where we want to set VTEXT, set it in v_flag directly, rather
  than making a function call to do this (it no longer makes sense to
  use a function call, since we no longer overload VTEXT with VEXECMAP's
  meaning).

VEXECMAP suggested by Chuq Silvers.
 2001-10-30 15:32:01 +00:00
christos
f2a8a907b4 simplify an expression. 2001-07-29 21:24:23 +00:00
christos
3e1e7a68e5 adjust to the new copyargs footprint 2001-07-29 21:22:58 +00:00
christos
2c913b0983 Fix problem reported by Greg Woods, with ld -n generated binaries. 
Now if the requested alignment of the psection is less than PAGE_SIZE
we use readvn, not pagedvn and we don't adjust sizes.
 2001-07-15 20:52:35 +00:00
christos
69f5770270 - add exec_read_from and make exec_elf32 use it. 
- add a macho probe function
 2001-07-14 02:08:29 +00:00
jdolecek
27a5a43c04 In the check_header() function, bump the number of allowed section headers 
to 512. Apparently, there are ELF binaries with more than 128 section
headers - an example is one of Linux Word Perfect 8 utilities.

This fixes kern/12455 by Mark Davies.
 2001-05-07 17:09:13 +00:00
eeh
e938c4e842 *NEVER* cast a reference parameter (unless you're using C++). 2001-02-04 19:12:09 +00:00
mycroft
b29180b2ff Tighten up the ELF signature checks, and actually look for the ABI tag added 
in newer glibc versions.
 2000-12-15 06:14:21 +00:00
mycroft
f495cd9dc6 Introduce 2 new flags in types.h: 
* __HAVE_SYSCALL_INTERN.  If this is defined, e_syscall is replaced by
  e_syscall_intern, which is called at key places in the kernel.  This can be
  used to set a MD syscall handler pointer.  This obsoletes and replaces the
  *_HAS_SEPARATED_SYSCALL flags.
* __HAVE_MINIMAL_EMUL.  If this is defined, certain (deprecated) elements in
  struct emul are omitted.
 2000-12-11 05:28:59 +00:00
mrg
51858ad725 backout part of execsw/LKM changes: netbsd_elf32_signature() is used by 
the compat/netbsd32 code so de-static it again.
 2000-11-28 13:10:41 +00:00
jdolecek
baae0324b9 restructure struct emul and execsw, in preparation to make emulations LKMable: 
* move all exec-type specific information from struct emul to execsw[] and
  provide single struct emul per emulation
* elf:
  - kern/exec_elf32.c:probe_funcs[] is gone, execsw[] how has one entry
    per emulation and contains pointer to respective probe function
  - interp is allocated via MALLOC() rather than on stack
  - elf_args structure is allocated via MALLOC() rather than malloc()
* ecoff: the per-emulation hooks moved from alpha and mips specific code
  to OSF1 and Ultrix compat code as appropriate, execsw[] has one entry per
  emulation supporting ecoff with appropriate probe function
* the makecmds/probe functions don't set emulation, pointer to emulation is
  part of appropriate execsw[] entry
* constify couple of structures
 2000-11-21 00:37:49 +00:00
thorpej
38ee35826a NBPG -> PAGE_SIZE. 2000-11-14 22:14:53 +00:00
jdolecek
78b866e95a change the type of *syscallnames[] array to 'const char * const foo[]' 2000-11-13 21:32:15 +00:00
chs
a74393b970 remove unneeded includes. 2000-11-08 05:47:56 +00:00
thorpej
cd32ace8bb ANSI'ify. 2000-08-01 04:57:28 +00:00
matt
b4c1bfd1f3 modify load_file to load at relative vms'a as specified in the phdr's. 2000-07-13 02:35:25 +00:00
kleink
a5eeea36d4 Add back a failure return statement in check_header() which I accidently 
deleted in rev. 1.46; pointed out by Chris Demetriou.
 2000-07-11 06:23:38 +00:00
mrg
32aa199ccf remove include of <vm/vm.h> 2000-06-27 17:41:07 +00:00
mrg
89d0a3e519 remove redundant vm includes. 2000-06-26 14:38:50 +00:00
soren
14573dc679 defopt SYSCALL_DEBUG. 2000-06-06 18:26:32 +00:00
chs
a6d33cc1f2 add a new function vn_marktext() for exec code to let others know 
that the vnode is now being used as process text.
 2000-04-11 04:37:47 +00:00
eeh
8636e8eef7 Update for compat_netbsd32. 2000-02-06 16:49:51 +00:00
kleink
522cbf0248 Update to match new SVR4-style definition names in <sys/exec_elf.h>. 1999-10-25 13:55:06 +00:00
fvdl
811a6162c3 Allow execution of shared objects. This is silly, but is allowed in, 
for example, Solaris and Linux, and at least one Linux ldd implementation
even depends on it.
 1999-06-29 23:39:06 +00:00
cgd
1bce8c40fc ep_arglen is in units of 'sizeof (char *)', not in units of bytes. use 
howmany(value, sizeof (char *)) to get the right value.
 1999-04-30 23:02:06 +00:00
kleink
f69591d12d Use of casts as lvalues is a GNU C extension; rearrange slightly. 1999-02-10 17:03:26 +00:00
christos
fe1f028894 PR/6962: Paul Shupak: FreeBSD elf support. 1999-02-09 20:35:04 +00:00
christos
6434d50bd2 Fix 3 problems with the new signature code: 
- don't set position to 0, set it to NO_ADDR (cgd)
- no need to malloc size + 1 bytes (cgd)
- fix calculation of minimum note size section.
 1999-01-06 11:52:53 +00:00
christos
27e4ef39db Add support for parsing OS type note fields. 1998-12-23 15:08:37 +00:00
christos
10b5900f45 update for linux file move. 1998-10-03 20:39:32 +00:00
erh
8c963d5a04 Move elf function name macros to exec_elf.h. COMPAT_LINUX is no longer limited to ELFSIZE==32. 1998-10-01 16:06:24 +00:00
christos
34c5a58bb4 Make copyrights consistent; fix weird/trailing spaces add missing (c) etc. 1998-09-12 17:20:02 +00:00
christos
9b63f5f407 Assign copyright to TNF. 1998-09-05 14:30:31 +00:00
perry
275d1554aa Abolition of bcopy, ovbcopy, bcmp, and bzero, phase one. 
bcopy(x, y, z) ->  memcpy(y, x, z)
ovbcopy(x, y, z) -> memmove(y, x, z)
   bcmp(x, y, z) ->  memcmp(x, y, z)
  bzero(x, y)    ->  memset(x, 0, y)
 1998-08-04 04:03:10 +00:00
perry
730baa7431 fix sizeofs so they comply with the KNF style guide. yes, it is pedantic. 1998-07-31 22:50:48 +00:00
thorpej
6326c90134 Change the "aresid" argument of vn_rdwr() from an int * to a size_t *, 
to match the new uio_resid type.
 1998-07-28 18:37:47 +00:00
thorpej
816e12eac2 defopt COMPAT_SVR4 1998-06-26 00:07:06 +00:00
thorpej
311bac3348 defopt COMPAT_IBCS2 1998-06-25 23:22:37 +00:00
thorpej
c466f11939 defopt COMPAT_LINUX 1998-06-25 23:18:23 +00:00
kleink
fe2d01988e Fix some arithmetics lossage on typeless pointers. 1998-05-08 18:18:55 +00:00
fvdl
e5bc90f40c Merge with Lite2 + local changes 1998-03-01 02:20:01 +00:00