Modified: trunk/fs/binfmt_flat.c (8925 => 8926)
--- trunk/fs/binfmt_flat.c 2010-06-18 08:30:08 UTC (rev 8925)
+++ trunk/fs/binfmt_flat.c 2010-06-18 08:33:22 UTC (rev 8926)
@@ -122,10 +122,16 @@
* memory and creates the pointer tables from them, and puts their
* addresses on the "stack", returning the new stack pointer value.
*/
-
+#ifndef CONFIG_APP_STACK_L1
static unsigned long create_flat_tables(
unsigned long pp,
struct linux_binprm * bprm)
+#else
+static unsigned long create_flat_tables(
+ unsigned long pp,
+ struct linux_binprm * bprm,
+ unsigned long l1_ram_offset)
+#endif
{
unsigned long *argv,*envp;
unsigned long * sp;
@@ -148,7 +154,11 @@
put_user(argc, sp);
current->mm->arg_start = (unsigned long) p;
while (argc-->0) {
+#ifndef CONFIG_APP_STACK_L1
put_user((unsigned long) p, argv++);
+#else
+ put_user((unsigned long) p + l1_ram_offset, argv++);
+#endif
do {
get_user(dummy, p); p++;
} while (dummy);
@@ -156,7 +166,11 @@
put_user((unsigned long) NULL, argv);
current->mm->arg_end = current->mm->env_start = (unsigned long) p;
while (envc-->0) {
- put_user((unsigned long)p, envp); envp++;
+#ifndef CONFIG_APP_STACK_L1
+ put_user((unsigned long)p, envp++);
+#else
+ put_user((unsigned long)p + l1_ram_offset, envp++);
+#endif
do {
get_user(dummy, p); p++;
} while (dummy);
@@ -390,7 +404,7 @@
#endif
flat_v2_reloc_t r;
unsigned long *ptr;
-
+
r.value = rl;
#if defined(CONFIG_COLDFIRE)
ptr = (unsigned long *) (current->mm->start_code + r.reloc.offset);
@@ -403,7 +417,7 @@
"(address %p, currently %x) into segment %s\n",
r.reloc.offset, ptr, (int)*ptr, segment[r.reloc.type]);
#endif
-
+
switch (r.reloc.type) {
case OLD_FLAT_RELOC_TYPE_TEXT:
*ptr += current->mm->start_code;
@@ -422,7 +436,7 @@
#ifdef DEBUG
printk("Relocation became %x\n", (int)*ptr);
#endif
-}
+}
/****************************************************************************/
@@ -481,7 +495,7 @@
ret = -ENOEXEC;
goto err;
}
-
+
/* Don't allow old format executables to use shared libraries */
if (rev == OLD_FLAT_VERSION && id != 0) {
printk("BINFMT_FLAT: shared libraries are not available before rev 0x%x\n",
@@ -587,7 +601,7 @@
fpos = ntohl(hdr->data_start);
#ifdef CONFIG_BINFMT_ZFLAT
if (flags & FLAT_FLAG_GZDATA) {
- result = decompress_exec(bprm, fpos, (char *) datapos,
+ result = decompress_exec(bprm, fpos, (char *) datapos,
data_len + (relocs * sizeof(unsigned long)), 0);
} else
#endif
@@ -722,7 +736,7 @@
libinfo->lib_list[id].loaded = 1;
libinfo->lib_list[id].entry = (0x00ffffff & ntohl(hdr->entry)) + textpos;
libinfo->lib_list[id].build_date = ntohl(hdr->build_date);
-
+
/*
* We just load the allocations into some temporary memory to
* help simplify all this mumbo jumbo
@@ -802,7 +816,7 @@
for (i=0; i < relocs; i++)
old_reloc(ntohl(reloc[i]));
}
-
+
flush_icache_range(start_code, end_code);
if (flags & FLAT_FLAG_L1STK) {
@@ -826,7 +840,7 @@
}
/* zero the BSS, BRK and stack areas */
- memset((void*)(datapos + data_len), 0, bss_len +
+ memset((void*)(datapos + data_len), 0, bss_len +
(memp + memp_size - stack_len - /* end brk */
libinfo->lib_list[id].start_brk) + /* start brk */
stack_len);
@@ -912,12 +926,12 @@
stack_len += (bprm->argc + 1) * sizeof(char *); /* the argv array */
stack_len += (bprm->envc + 1) * sizeof(char *); /* the envp array */
stack_len += FLAT_STACK_ALIGN - 1; /* reserve for upcoming alignment */
-
+
l1stack_base = 0;
res = load_flat_file(bprm, &libinfo, 0, &stack_len, &l1stack_base);
if (IS_ERR_VALUE(res))
return res;
-
+
/* Update data segment pointers for all libraries */
for (i=0; i<MAX_SHARED_LIBS; i++)
if (libinfo.lib_list[i].loaded)
@@ -940,8 +954,16 @@
* (char *) --p =
((char *) page_address(bprm->page[i/PAGE_SIZE]))[i % PAGE_SIZE];
+#ifndef CONFIG_APP_STACK_L1
sp = (unsigned long *) create_flat_tables(p, bprm);
-
+#else
+ if (l1stack_base)
+ sp = (unsigned long *) create_flat_tables(p, bprm, l1stack_base +
+ stack_len - ramstack_top);
+ else
+ sp = (unsigned long *) create_flat_tables(p, bprm, 0);
+#endif
+
/* Fake some return addresses to ensure the call chain will
* initialise library in order for us. We are required to call
* lib 1 first, then 2, ... and finally the main program (id 0).
@@ -957,7 +979,7 @@
}
}
#endif
-
+
/* Stash our initial stack pointer into the mm structure */
current->mm->start_stack = (unsigned long )sp;
