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linux-user: Remove ELFLOAD32. 

The ABI-specific types used by linux_binprm and image_info
are different after forcing TARGET_ABI32 on.  Which means
that the parameters that load_elf_binary_multi sees are not
those that loader_exec passed.  This is inherently broken
and is more trouble than it's worth fixing.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
master
Richard Henderson 2010-04-22 17:24:58 -07:00 committed by Blue Swirl
parent e23886a91d
commit 6495a04457
5 changed files with 1 additions and 47 deletions
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1
Makefile.target
View File

@ -88,7 +88,6 @@ obj-y = main.o syscall.o strace.o mmap.o signal.o thunk.o \
elfload.o linuxload.o uaccess.o gdbstub.o cpu-uname.o
obj-$(TARGET_HAS_BFLT) += flatload.o
obj-$(TARGET_HAS_ELFLOAD32) += elfload32.o
obj-$(TARGET_I386) += vm86.o

6
configure vendored
View File

@ -2413,7 +2413,6 @@ ln -s $source_path/Makefile.target $target_dir/Makefile
echo "# Automatically generated by configure - do not modify" > $config_target_mak
bflt="no"
elfload32="no"
target_nptl="no"
interp_prefix1=`echo "$interp_prefix" | sed "s/%M/$target_arch2/g"`
echo "CONFIG_QEMU_PREFIX=\"$interp_prefix1\"" >> $config_target_mak
@ -2510,7 +2509,6 @@ case "$target_arch2" in
;;
sparc64)
TARGET_BASE_ARCH=sparc
elfload32="yes"
target_phys_bits=64
;;
sparc32plus)
@ -2609,10 +2607,6 @@ if test "$target_user_only" = "yes" \
-a "$nptl" = "yes" -a "$target_nptl" = "yes"; then
echo "CONFIG_USE_NPTL=y" >> $config_target_mak
fi
# 32 bit ELF loader in addition to native 64 bit loader?
if test "$target_user_only" = "yes" -a "$elfload32" = "yes"; then
echo "TARGET_HAS_ELFLOAD32=y" >> $config_target_mak
fi
if test "$target_user_only" = "yes" -a "$guest_base" = "yes"; then
echo "CONFIG_USE_GUEST_BASE=y" >> $config_target_mak
fi

30
linux-user/elfload32.c
View File

@ -1,30 +0,0 @@
#define TARGET_ABI32
#define load_elf_binary load_elf_binary32
#define do_init_thread do_init_thread32
#include "elfload.c"
#undef load_elf_binary
#undef do_init_thread
int load_elf_binary(struct linux_binprm *bprm, struct target_pt_regs *regs,
struct image_info *info);
int load_elf_binary_multi(struct linux_binprm *bprm,
struct target_pt_regs *regs,
struct image_info *info)
{
struct elfhdr *elf_ex;
int retval;
elf_ex = (struct elfhdr *) bprm->buf; /* exec-header */
if (elf_ex->e_ident[EI_CLASS] == ELFCLASS64) {
retval = load_elf_binary(bprm, regs, info);
} else {
retval = load_elf_binary32(bprm, regs, info);
if (personality(info->personality) == PER_LINUX)
info->personality = PER_LINUX32;
}
return retval;
}

6
linux-user/linuxload.c
View File

@ -184,11 +184,7 @@ int loader_exec(const char * filename, char ** argv, char ** envp,
&& bprm->buf[1] == 'E'
&& bprm->buf[2] == 'L'
&& bprm->buf[3] == 'F') {
#ifndef TARGET_HAS_ELFLOAD32
retval = load_elf_binary(bprm,regs,infop);
#else
retval = load_elf_binary_multi(bprm, regs, infop);
#endif
retval = load_elf_binary(bprm, regs, infop);
#if defined(TARGET_HAS_BFLT)
} else if (bprm->buf[0] == 'b'
&& bprm->buf[1] == 'F'

5
linux-user/qemu.h
View File

@ -171,11 +171,6 @@ int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
struct image_info * info);
int load_flt_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
struct image_info * info);
#ifdef TARGET_HAS_ELFLOAD32
int load_elf_binary_multi(struct linux_binprm *bprm,
struct target_pt_regs *regs,
struct image_info *info);
#endif
abi_long memcpy_to_target(abi_ulong dest, const void *src,
unsigned long len);