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Fix confusions between host and target long types.

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Fix start_data computation.
Fix auxiliary infos setup.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3344 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
j_mayer 2007-10-07 15:59:45 +00:00
parent f2e63a42c9
commit 863cf0b72c
1 changed files with 61 additions and 47 deletions
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108
linux-user/elfload.c
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@ -124,6 +124,7 @@ static inline void init_thread(struct target_pt_regs *regs, struct image_info *i
/* XXX: it seems that r0 is zeroed after ! */
regs->ARM_r0 = 0;
/* For uClinux PIC binaries. */
/* XXX: Linux does this only on ARM with no MMU (do we care ?) */
regs->ARM_r10 = infop->start_data;
}
@ -516,8 +517,8 @@ static void bswap_sym(struct elf_sym *sym)
* to be put directly into the top of new user memory.
*
*/
static unsigned long copy_elf_strings(int argc,char ** argv, void **page,
target_ulong p)
static target_ulong copy_elf_strings(int argc,char ** argv, void **page,
target_ulong p)
{
char *tmp, *tmp1, *pag = NULL;
int len, offset = 0;
@ -566,8 +567,8 @@ static unsigned long copy_elf_strings(int argc,char ** argv, void **page,
return p;
}
unsigned long setup_arg_pages(target_ulong p, struct linux_binprm * bprm,
struct image_info * info)
target_ulong setup_arg_pages(target_ulong p, struct linux_binprm * bprm,
struct image_info * info)
{
target_ulong stack_base, size, error;
int i;
@ -605,7 +606,7 @@ unsigned long setup_arg_pages(target_ulong p, struct linux_binprm * bprm,
return p;
}
static void set_brk(unsigned long start, unsigned long end)
static void set_brk(target_ulong start, target_ulong end)
{
/* page-align the start and end addresses... */
start = HOST_PAGE_ALIGN(start);
@ -624,9 +625,9 @@ static void set_brk(unsigned long start, unsigned long end)
/* We need to explicitly zero any fractional pages after the data
section (i.e. bss). This would contain the junk from the file that
should not be in memory. */
static void padzero(unsigned long elf_bss, unsigned long last_bss)
static void padzero(target_ulong elf_bss, target_ulong last_bss)
{
unsigned long nbyte;
target_ulong nbyte;
if (elf_bss >= last_bss)
return;
@ -637,12 +638,12 @@ static void padzero(unsigned long elf_bss, unsigned long last_bss)
patch target_mmap(), but it is more complicated as the file
size must be known */
if (qemu_real_host_page_size < qemu_host_page_size) {
unsigned long end_addr, end_addr1;
target_ulong end_addr, end_addr1;
end_addr1 = (elf_bss + qemu_real_host_page_size - 1) &
~(qemu_real_host_page_size - 1);
end_addr = HOST_PAGE_ALIGN(elf_bss);
if (end_addr1 < end_addr) {
mmap((void *)end_addr1, end_addr - end_addr1,
mmap((void *)g2h(end_addr1), end_addr - end_addr1,
PROT_READ|PROT_WRITE|PROT_EXEC,
MAP_FIXED|MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
}
@ -659,18 +660,18 @@ static void padzero(unsigned long elf_bss, unsigned long last_bss)
}
static unsigned long create_elf_tables(target_ulong p, int argc, int envc,
struct elfhdr * exec,
unsigned long load_addr,
unsigned long load_bias,
unsigned long interp_load_addr, int ibcs,
struct image_info *info)
static target_ulong create_elf_tables(target_ulong p, int argc, int envc,
struct elfhdr * exec,
target_ulong load_addr,
target_ulong load_bias,
target_ulong interp_load_addr, int ibcs,
struct image_info *info)
{
target_ulong sp;
int size;
target_ulong u_platform;
const char *k_platform;
const int n = sizeof(target_ulong);
const int n = sizeof(elf_addr_t);
sp = p;
u_platform = 0;
@ -697,10 +698,20 @@ static unsigned long create_elf_tables(target_ulong p, int argc, int envc,
if (size & 15)
sp -= 16 - (size & 15);
/* This is correct because Linux defines
* elf_addr_t as Elf32_Off / Elf64_Off
*/
#if ELF_CLASS == ELFCLASS32
#define NEW_AUX_ENT(id, val) do { \
sp -= n; tputl(sp, val); \
sp -= n; tputl(sp, id); \
sp -= n; tput32(sp, val); \
sp -= n; tput32(sp, id); \
} while(0)
#else
#define NEW_AUX_ENT(id, val) do { \
sp -= n; tput64(sp, val); \
sp -= n; tput64(sp, id); \
} while(0)
#endif
NEW_AUX_ENT (AT_NULL, 0);
/* There must be exactly DLINFO_ITEMS entries here. */
@ -732,17 +743,17 @@ static unsigned long create_elf_tables(target_ulong p, int argc, int envc,
}
static unsigned long load_elf_interp(struct elfhdr * interp_elf_ex,
int interpreter_fd,
unsigned long *interp_load_addr)
static target_ulong load_elf_interp(struct elfhdr * interp_elf_ex,
int interpreter_fd,
target_ulong *interp_load_addr)
{
struct elf_phdr *elf_phdata = NULL;
struct elf_phdr *eppnt;
unsigned long load_addr = 0;
target_ulong load_addr = 0;
int load_addr_set = 0;
int retval;
unsigned long last_bss, elf_bss;
unsigned long error;
target_ulong last_bss, elf_bss;
target_ulong error;
int i;
elf_bss = 0;
@ -756,20 +767,20 @@ static unsigned long load_elf_interp(struct elfhdr * interp_elf_ex,
if ((interp_elf_ex->e_type != ET_EXEC &&
interp_elf_ex->e_type != ET_DYN) ||
!elf_check_arch(interp_elf_ex->e_machine)) {
return ~0UL;
return ~((target_ulong)0UL);
}
/* Now read in all of the header information */
if (sizeof(struct elf_phdr) * interp_elf_ex->e_phnum > TARGET_PAGE_SIZE)
return ~0UL;
return ~(target_ulong)0UL;
elf_phdata = (struct elf_phdr *)
malloc(sizeof(struct elf_phdr) * interp_elf_ex->e_phnum);
if (!elf_phdata)
return ~0UL;
return ~((target_ulong)0UL);
/*
* If the size of this structure has changed, then punt, since
@ -777,7 +788,7 @@ static unsigned long load_elf_interp(struct elfhdr * interp_elf_ex,
*/
if (interp_elf_ex->e_phentsize != sizeof(struct elf_phdr)) {
free(elf_phdata);
return ~0UL;
return ~((target_ulong)0UL);
}
retval = lseek(interpreter_fd, interp_elf_ex->e_phoff, SEEK_SET);
@ -818,8 +829,8 @@ static unsigned long load_elf_interp(struct elfhdr * interp_elf_ex,
if (eppnt->p_type == PT_LOAD) {
int elf_type = MAP_PRIVATE | MAP_DENYWRITE;
int elf_prot = 0;
unsigned long vaddr = 0;
unsigned long k;
target_ulong vaddr = 0;
target_ulong k;
if (eppnt->p_flags & PF_R) elf_prot = PROT_READ;
if (eppnt->p_flags & PF_W) elf_prot |= PROT_WRITE;
@ -839,7 +850,7 @@ static unsigned long load_elf_interp(struct elfhdr * interp_elf_ex,
/* Real error */
close(interpreter_fd);
free(elf_phdata);
return ~0UL;
return ~((target_ulong)0UL);
}
if (!load_addr_set && interp_elf_ex->e_type == ET_DYN) {
@ -884,7 +895,7 @@ static unsigned long load_elf_interp(struct elfhdr * interp_elf_ex,
free(elf_phdata);
*interp_load_addr = load_addr;
return ((unsigned long) interp_elf_ex->e_entry) + load_addr;
return ((target_ulong) interp_elf_ex->e_entry) + load_addr;
}
/* Best attempt to load symbols from this ELF object. */
@ -972,22 +983,22 @@ int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
struct elfhdr interp_elf_ex;
struct exec interp_ex;
int interpreter_fd = -1; /* avoid warning */
unsigned long load_addr, load_bias;
target_ulong load_addr, load_bias;
int load_addr_set = 0;
unsigned int interpreter_type = INTERPRETER_NONE;
unsigned char ibcs2_interpreter;
int i;
unsigned long mapped_addr;
target_ulong mapped_addr;
struct elf_phdr * elf_ppnt;
struct elf_phdr *elf_phdata;
unsigned long elf_bss, k, elf_brk;
target_ulong elf_bss, k, elf_brk;
int retval;
char * elf_interpreter;
unsigned long elf_entry, interp_load_addr = 0;
target_ulong elf_entry, interp_load_addr = 0;
int status;
unsigned long start_code, end_code, end_data;
unsigned long reloc_func_desc = 0;
unsigned long elf_stack;
target_ulong start_code, end_code, start_data, end_data;
target_ulong reloc_func_desc = 0;
target_ulong elf_stack;
char passed_fileno[6];
ibcs2_interpreter = 0;
@ -1043,10 +1054,11 @@ int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
elf_brk = 0;
elf_stack = ~0UL;
elf_stack = ~((target_ulong)0UL);
elf_interpreter = NULL;
start_code = ~0UL;
start_code = ~((target_ulong)0UL);
end_code = 0;
start_data = 0;
end_data = 0;
for(i=0;i < elf_ex.e_phnum; i++) {
@ -1180,9 +1192,9 @@ int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
/* OK, This is the point of no return */
info->end_data = 0;
info->end_code = 0;
info->start_mmap = (unsigned long)ELF_START_MMAP;
info->start_mmap = (target_ulong)ELF_START_MMAP;
info->mmap = 0;
elf_entry = (unsigned long) elf_ex.e_entry;
elf_entry = (target_ulong) elf_ex.e_entry;
/* Do this so that we can load the interpreter, if need be. We will
change some of these later */
@ -1199,7 +1211,7 @@ int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
for(i = 0, elf_ppnt = elf_phdata; i < elf_ex.e_phnum; i++, elf_ppnt++) {
int elf_prot = 0;
int elf_flags = 0;
unsigned long error;
target_ulong error;
if (elf_ppnt->p_type != PT_LOAD)
continue;
@ -1257,6 +1269,8 @@ int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
k = elf_ppnt->p_vaddr;
if (k < start_code)
start_code = k;
if (start_data < k)
start_data = k;
k = elf_ppnt->p_vaddr + elf_ppnt->p_filesz;
if (k > elf_bss)
elf_bss = k;
@ -1273,7 +1287,7 @@ int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
elf_brk += load_bias;
start_code += load_bias;
end_code += load_bias;
// start_data += load_bias;
start_data += load_bias;
end_data += load_bias;
if (elf_interpreter) {
@ -1289,7 +1303,7 @@ int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
close(interpreter_fd);
free(elf_interpreter);
if (elf_entry == ~0UL) {
if (elf_entry == ~((target_ulong)0UL)) {
printf("Unable to load interpreter\n");
free(elf_phdata);
exit(-1);
@ -1320,7 +1334,7 @@ int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
info->start_brk = info->brk = elf_brk;
info->end_code = end_code;
info->start_code = start_code;
info->start_data = end_code;
info->start_data = start_data;
info->end_data = end_data;
info->start_stack = bprm->p;