--- /dev/null
+/* Any assmbly language/system dependent hacks needed to setup boot1.c so it
+ * will work as expected and cope with whatever platform specific wierdness is
+ * needed for this architecture. */
+
+/* Overrive the default _dl_boot function, and replace it with a bit of asm.
+ * Then call the real _dl_boot function, which is now named _dl_boot2. */
+
+asm("\
+.text
+.globl _dl_boot
+_dl_boot:
+ mov r7, sp
+@ ldr r0, [sp], #4
+ mov r0,sp
+ bl _dl_boot2
+ mov r6, r0
+ mov r0, r7
+ mov pc, r6
+.previous\n\
+");
+
+#define _dl_boot _dl_boot2
+#define DL_BOOT(X) static void * __attribute__ ((unused)) _dl_boot (X)
+
+
+ /* It seems ARM needs an offset here */
+#undef ELFMAGIC
+#define ELFMAGIC ELFMAG+load_addr
+
+
+
--- /dev/null
+/* Any assmbly language/system dependent hacks needed to setup boot1.c so it
+ * will work as expected and cope with whatever platform specific wierdness is
+ * needed for this architecture. */
+
+/* Overrive the default _dl_boot function, and replace it with a bit of asm.
+ * Then call the real _dl_boot function, which is now named _dl_boot2. */
+
+asm("\
+.text
+.globl _dl_boot
+_dl_boot:
+ mov r7, sp
+@ ldr r0, [sp], #4
+ mov r0,sp
+ bl _dl_boot2
+ mov r6, r0
+ mov r0, r7
+ mov pc, r6
+.previous\n\
+");
+
+#define _dl_boot _dl_boot2
+#define DL_BOOT(X) static void * __attribute__ ((unused)) _dl_boot (X)
+
+
+ /* It seems ARM needs an offset here */
+#undef ELFMAGIC
+#define ELFMAGIC ELFMAG+load_addr
+
+
+
#define ALLOW_ZERO_PLTGOT
+/* Some arches may need to override this in boot1_arch.h */
+#define ELFMAGIC ELFMAG
+
/* This is a poor man's malloc, used prior to resolving our internal poor man's malloc */
#define DL_MALLOC(SIZE) ((void *) (malloc_buffer += SIZE, malloc_buffer - SIZE)) ; REALIGN();
/*
void _dl_debug_state(void);
char *_dl_get_last_path_component(char *path);
+#include "boot1_arch.h"
+
/* When we enter this piece of code, the program stack looks like this:
argc argument counter (integer)
NULL
auxv_t[0...N] Auxiliary Vector Table elements (mixed types)
*/
-void _dl_boot(unsigned int args)
+
+DL_BOOT(unsigned long args)
{
unsigned int argc;
char **argv, **envp;
- int status;
-
unsigned long load_addr;
unsigned long *got;
unsigned long *aux_dat;
unsigned long *chains;
int indx;
int _dl_secure;
+ int status;
/* WARNING! -- we cannot make _any_ funtion calls until we have
/* First obtain the information on the stack that tells us more about
what binary is loaded, where it is loaded, etc, etc */
- GET_ARGV(aux_dat, args);
+ GET_ARGV(aux_dat,args);
+#if defined(__arm__)
+ aux_dat+=1;
+#endif
argc = *(aux_dat - 1);
- argv = (char **) aux_dat;
+ argv = (char **) aux_dat;
aux_dat += argc; /* Skip over the argv pointers */
aux_dat++; /* Skip over NULL at end of argv */
envp = (char **) aux_dat;
aux_dat++; /* Skip over the envp pointers */
aux_dat++; /* Skip over NULL at end of envp */
- /* Place -1 here as a checkpoint. We check later to see if it was changed
+ /* Place -1 here as a checkpoint. We later check if it was changed
* when we read in the auxv_t */
auxv_t[AT_UID].a_type = -1;
Elf32_auxv_t *auxv_entry = (Elf32_auxv_t*) aux_dat;
if (auxv_entry->a_type <= AT_EGID) {
- _dl_memcpy_inline(&(auxv_t[auxv_entry->a_type]), auxv_entry, sizeof(Elf32_auxv_t));
+ _dl_memcpy_inline(&(auxv_t[auxv_entry->a_type]),
+ auxv_entry, sizeof(Elf32_auxv_t));
}
aux_dat += 2;
}
* (esp since SEND_STDERR() needs this on some platforms... */
load_addr = auxv_t[AT_BASE].a_un.a_val;
header = (elfhdr *) auxv_t[AT_BASE].a_un.a_ptr;
-
- /* check the ELF header to make sure everything looks ok. */
+
+ /* Check the ELF header to make sure everything looks ok. */
if (! header || header->e_ident[EI_CLASS] != ELFCLASS32 ||
header->e_ident[EI_VERSION] != EV_CURRENT ||
- _dl_strncmp_inline((void *)header, ELFMAG, SELFMAG) != 0)
+ _dl_strncmp_inline((void *)header, ELFMAGIC, SELFMAG) != 0)
{
- SEND_STDERR("invalid ELF header\n");
+ SEND_STDERR("Invalid ELF header\n");
_dl_exit(0);
}
#ifdef DL_DEBUG
SEND_ADDRESS_STDERR(load_addr, 1);
#endif
+
/* Locate the global offset table. Since this code must be PIC
* we can take advantage of the magic offset register, if we
* happen to know what that is for this architecture. If not,
- * we can always read stuff out of the ELF file to fine it... */
+ * we can always read stuff out of the ELF file to find it... */
#if defined(__i386__)
__asm__("\tmovl %%ebx,%0\n\t" : "=a" (got));
#elif defined(__m68k__)
__asm__ ("movel %%a5,%0" : "=g" (got))
#elif defined(__sparc__)
__asm__("\tmov %%l7,%0\n\t" : "=r" (got))
+#elif defined(__arm__)
+ __asm__("\tmov %0, r10\n\t" : "=r"(got));
#else
/* Do things the slow way in C */
{
#ifdef USE_CACHE
_dl_unmap_cache();
#endif
-
/* ldd uses uses this. I am not sure how you pick up the other flags */
if (_dl_trace_loaded_objects) {
_dl_warn = _dl_getenv("LD_WARN", envp);
* Now we go through and look for REL and RELA records that indicate fixups
* to the GOT tables. We need to do this in reverse order so that COPY
* directives work correctly */
-
-
goof = _dl_loaded_modules ? _dl_fixup(_dl_loaded_modules) : 0;
and we have to manually search for entries that require fixups.
Solaris gets this one right, from what I understand. */
-
if (_dl_symbol_tables)
goof += _dl_copy_fixups(_dl_symbol_tables);
-
if (goof || _dl_trace_loaded_objects)
_dl_exit(0);
if (_dl_envp)
*_dl_envp = (unsigned long) envp;
-
{
int i;
elf_phdr *ppnt;
/*
* Transfer control to the application.
*/
+ status = 0; /* Used on x86, but not on other arches */
START();
}
int _dl_fixup(struct elf_resolve *tpnt)
{
int goof = 0;
-
+
if (tpnt->next)
goof += _dl_fixup(tpnt->next);
-
if (tpnt->dynamic_info[DT_REL]) {
#ifdef ELF_USES_RELOCA
_dl_fdprintf(2, "%s: can't handle REL relocation records\n",
if (tpnt->init_flag & RELOCS_DONE)
return goof;
tpnt->init_flag |= RELOCS_DONE;
-
goof += _dl_parse_relocation_information(tpnt,
tpnt->dynamic_info[DT_REL], tpnt->dynamic_info[DT_RELSZ], 0);
#endif
if (tpnt->init_flag & RELOCS_DONE)
return goof;
tpnt->init_flag |= RELOCS_DONE;
-
goof += _dl_parse_relocation_information(tpnt,
tpnt->dynamic_info[DT_RELA], tpnt->dynamic_info[DT_RELASZ], 0);
#else
if (tpnt->init_flag & JMP_RELOCS_DONE)
return goof;
tpnt->init_flag |= JMP_RELOCS_DONE;
-
if (!_dl_not_lazy || *_dl_not_lazy == 0)
_dl_parse_lazy_relocation_information(tpnt,
tpnt->dynamic_info[DT_JMPREL], tpnt->dynamic_info[DT_PLTRELSZ], 0);
--- /dev/null
+/* Any assmbly language/system dependent hacks needed to setup boot1.c so it
+ * will work as expected and cope with whatever platform specific wierdness is
+ * needed for this architecture. See arm/boot1_arch.h for an example of what
+ * can be done.
+ */
+
+#define DL_BOOT(X) void _dl_boot (X)
--- /dev/null
+/* Any assmbly language/system dependent hacks needed to setup boot1.c so it
+ * will work as expected and cope with whatever platform specific wierdness is
+ * needed for this architecture. See arm/boot1_arch.h for an example of what
+ * can be done.
+ */
+
+#define DL_BOOT(X) void _dl_boot (X)
#define ALLOW_ZERO_PLTGOT
+/* Some arches may need to override this in boot1_arch.h */
+#define ELFMAGIC ELFMAG
+
/* This is a poor man's malloc, used prior to resolving our internal poor man's malloc */
#define DL_MALLOC(SIZE) ((void *) (malloc_buffer += SIZE, malloc_buffer - SIZE)) ; REALIGN();
/*
void _dl_debug_state(void);
char *_dl_get_last_path_component(char *path);
+#include "boot1_arch.h"
+
/* When we enter this piece of code, the program stack looks like this:
argc argument counter (integer)
NULL
auxv_t[0...N] Auxiliary Vector Table elements (mixed types)
*/
-void _dl_boot(unsigned int args)
+
+DL_BOOT(unsigned long args)
{
unsigned int argc;
char **argv, **envp;
- int status;
-
unsigned long load_addr;
unsigned long *got;
unsigned long *aux_dat;
unsigned long *chains;
int indx;
int _dl_secure;
+ int status;
/* WARNING! -- we cannot make _any_ funtion calls until we have
/* First obtain the information on the stack that tells us more about
what binary is loaded, where it is loaded, etc, etc */
- GET_ARGV(aux_dat, args);
+ GET_ARGV(aux_dat,args);
+#if defined(__arm__)
+ aux_dat+=1;
+#endif
argc = *(aux_dat - 1);
- argv = (char **) aux_dat;
+ argv = (char **) aux_dat;
aux_dat += argc; /* Skip over the argv pointers */
aux_dat++; /* Skip over NULL at end of argv */
envp = (char **) aux_dat;
aux_dat++; /* Skip over the envp pointers */
aux_dat++; /* Skip over NULL at end of envp */
- /* Place -1 here as a checkpoint. We check later to see if it was changed
+ /* Place -1 here as a checkpoint. We later check if it was changed
* when we read in the auxv_t */
auxv_t[AT_UID].a_type = -1;
Elf32_auxv_t *auxv_entry = (Elf32_auxv_t*) aux_dat;
if (auxv_entry->a_type <= AT_EGID) {
- _dl_memcpy_inline(&(auxv_t[auxv_entry->a_type]), auxv_entry, sizeof(Elf32_auxv_t));
+ _dl_memcpy_inline(&(auxv_t[auxv_entry->a_type]),
+ auxv_entry, sizeof(Elf32_auxv_t));
}
aux_dat += 2;
}
* (esp since SEND_STDERR() needs this on some platforms... */
load_addr = auxv_t[AT_BASE].a_un.a_val;
header = (elfhdr *) auxv_t[AT_BASE].a_un.a_ptr;
-
- /* check the ELF header to make sure everything looks ok. */
+
+ /* Check the ELF header to make sure everything looks ok. */
if (! header || header->e_ident[EI_CLASS] != ELFCLASS32 ||
header->e_ident[EI_VERSION] != EV_CURRENT ||
- _dl_strncmp_inline((void *)header, ELFMAG, SELFMAG) != 0)
+ _dl_strncmp_inline((void *)header, ELFMAGIC, SELFMAG) != 0)
{
- SEND_STDERR("invalid ELF header\n");
+ SEND_STDERR("Invalid ELF header\n");
_dl_exit(0);
}
#ifdef DL_DEBUG
SEND_ADDRESS_STDERR(load_addr, 1);
#endif
+
/* Locate the global offset table. Since this code must be PIC
* we can take advantage of the magic offset register, if we
* happen to know what that is for this architecture. If not,
- * we can always read stuff out of the ELF file to fine it... */
+ * we can always read stuff out of the ELF file to find it... */
#if defined(__i386__)
__asm__("\tmovl %%ebx,%0\n\t" : "=a" (got));
#elif defined(__m68k__)
__asm__ ("movel %%a5,%0" : "=g" (got))
#elif defined(__sparc__)
__asm__("\tmov %%l7,%0\n\t" : "=r" (got))
+#elif defined(__arm__)
+ __asm__("\tmov %0, r10\n\t" : "=r"(got));
#else
/* Do things the slow way in C */
{
#ifdef USE_CACHE
_dl_unmap_cache();
#endif
-
/* ldd uses uses this. I am not sure how you pick up the other flags */
if (_dl_trace_loaded_objects) {
_dl_warn = _dl_getenv("LD_WARN", envp);
* Now we go through and look for REL and RELA records that indicate fixups
* to the GOT tables. We need to do this in reverse order so that COPY
* directives work correctly */
-
-
goof = _dl_loaded_modules ? _dl_fixup(_dl_loaded_modules) : 0;
and we have to manually search for entries that require fixups.
Solaris gets this one right, from what I understand. */
-
if (_dl_symbol_tables)
goof += _dl_copy_fixups(_dl_symbol_tables);
-
if (goof || _dl_trace_loaded_objects)
_dl_exit(0);
if (_dl_envp)
*_dl_envp = (unsigned long) envp;
-
{
int i;
elf_phdr *ppnt;
/*
* Transfer control to the application.
*/
+ status = 0; /* Used on x86, but not on other arches */
START();
}
int _dl_fixup(struct elf_resolve *tpnt)
{
int goof = 0;
-
+
if (tpnt->next)
goof += _dl_fixup(tpnt->next);
-
if (tpnt->dynamic_info[DT_REL]) {
#ifdef ELF_USES_RELOCA
_dl_fdprintf(2, "%s: can't handle REL relocation records\n",
if (tpnt->init_flag & RELOCS_DONE)
return goof;
tpnt->init_flag |= RELOCS_DONE;
-
goof += _dl_parse_relocation_information(tpnt,
tpnt->dynamic_info[DT_REL], tpnt->dynamic_info[DT_RELSZ], 0);
#endif
if (tpnt->init_flag & RELOCS_DONE)
return goof;
tpnt->init_flag |= RELOCS_DONE;
-
goof += _dl_parse_relocation_information(tpnt,
tpnt->dynamic_info[DT_RELA], tpnt->dynamic_info[DT_RELASZ], 0);
#else
if (tpnt->init_flag & JMP_RELOCS_DONE)
return goof;
tpnt->init_flag |= JMP_RELOCS_DONE;
-
if (!_dl_not_lazy || *_dl_not_lazy == 0)
_dl_parse_lazy_relocation_information(tpnt,
tpnt->dynamic_info[DT_JMPREL], tpnt->dynamic_info[DT_PLTRELSZ], 0);
#define ALLOW_ZERO_PLTGOT
+/* Some arches may need to override this in boot1_arch.h */
+#define ELFMAGIC ELFMAG
+
/* This is a poor man's malloc, used prior to resolving our internal poor man's malloc */
#define DL_MALLOC(SIZE) ((void *) (malloc_buffer += SIZE, malloc_buffer - SIZE)) ; REALIGN();
/*
void _dl_debug_state(void);
char *_dl_get_last_path_component(char *path);
+#include "boot1_arch.h"
+
/* When we enter this piece of code, the program stack looks like this:
argc argument counter (integer)
NULL
auxv_t[0...N] Auxiliary Vector Table elements (mixed types)
*/
-void _dl_boot(unsigned int args)
+
+DL_BOOT(unsigned long args)
{
unsigned int argc;
char **argv, **envp;
- int status;
-
unsigned long load_addr;
unsigned long *got;
unsigned long *aux_dat;
unsigned long *chains;
int indx;
int _dl_secure;
+ int status;
/* WARNING! -- we cannot make _any_ funtion calls until we have
/* First obtain the information on the stack that tells us more about
what binary is loaded, where it is loaded, etc, etc */
- GET_ARGV(aux_dat, args);
+ GET_ARGV(aux_dat,args);
+#if defined(__arm__)
+ aux_dat+=1;
+#endif
argc = *(aux_dat - 1);
- argv = (char **) aux_dat;
+ argv = (char **) aux_dat;
aux_dat += argc; /* Skip over the argv pointers */
aux_dat++; /* Skip over NULL at end of argv */
envp = (char **) aux_dat;
aux_dat++; /* Skip over the envp pointers */
aux_dat++; /* Skip over NULL at end of envp */
- /* Place -1 here as a checkpoint. We check later to see if it was changed
+ /* Place -1 here as a checkpoint. We later check if it was changed
* when we read in the auxv_t */
auxv_t[AT_UID].a_type = -1;
Elf32_auxv_t *auxv_entry = (Elf32_auxv_t*) aux_dat;
if (auxv_entry->a_type <= AT_EGID) {
- _dl_memcpy_inline(&(auxv_t[auxv_entry->a_type]), auxv_entry, sizeof(Elf32_auxv_t));
+ _dl_memcpy_inline(&(auxv_t[auxv_entry->a_type]),
+ auxv_entry, sizeof(Elf32_auxv_t));
}
aux_dat += 2;
}
* (esp since SEND_STDERR() needs this on some platforms... */
load_addr = auxv_t[AT_BASE].a_un.a_val;
header = (elfhdr *) auxv_t[AT_BASE].a_un.a_ptr;
-
- /* check the ELF header to make sure everything looks ok. */
+
+ /* Check the ELF header to make sure everything looks ok. */
if (! header || header->e_ident[EI_CLASS] != ELFCLASS32 ||
header->e_ident[EI_VERSION] != EV_CURRENT ||
- _dl_strncmp_inline((void *)header, ELFMAG, SELFMAG) != 0)
+ _dl_strncmp_inline((void *)header, ELFMAGIC, SELFMAG) != 0)
{
- SEND_STDERR("invalid ELF header\n");
+ SEND_STDERR("Invalid ELF header\n");
_dl_exit(0);
}
#ifdef DL_DEBUG
SEND_ADDRESS_STDERR(load_addr, 1);
#endif
+
/* Locate the global offset table. Since this code must be PIC
* we can take advantage of the magic offset register, if we
* happen to know what that is for this architecture. If not,
- * we can always read stuff out of the ELF file to fine it... */
+ * we can always read stuff out of the ELF file to find it... */
#if defined(__i386__)
__asm__("\tmovl %%ebx,%0\n\t" : "=a" (got));
#elif defined(__m68k__)
__asm__ ("movel %%a5,%0" : "=g" (got))
#elif defined(__sparc__)
__asm__("\tmov %%l7,%0\n\t" : "=r" (got))
+#elif defined(__arm__)
+ __asm__("\tmov %0, r10\n\t" : "=r"(got));
#else
/* Do things the slow way in C */
{
#ifdef USE_CACHE
_dl_unmap_cache();
#endif
-
/* ldd uses uses this. I am not sure how you pick up the other flags */
if (_dl_trace_loaded_objects) {
_dl_warn = _dl_getenv("LD_WARN", envp);
* Now we go through and look for REL and RELA records that indicate fixups
* to the GOT tables. We need to do this in reverse order so that COPY
* directives work correctly */
-
-
goof = _dl_loaded_modules ? _dl_fixup(_dl_loaded_modules) : 0;
and we have to manually search for entries that require fixups.
Solaris gets this one right, from what I understand. */
-
if (_dl_symbol_tables)
goof += _dl_copy_fixups(_dl_symbol_tables);
-
if (goof || _dl_trace_loaded_objects)
_dl_exit(0);
if (_dl_envp)
*_dl_envp = (unsigned long) envp;
-
{
int i;
elf_phdr *ppnt;
/*
* Transfer control to the application.
*/
+ status = 0; /* Used on x86, but not on other arches */
START();
}
int _dl_fixup(struct elf_resolve *tpnt)
{
int goof = 0;
-
+
if (tpnt->next)
goof += _dl_fixup(tpnt->next);
-
if (tpnt->dynamic_info[DT_REL]) {
#ifdef ELF_USES_RELOCA
_dl_fdprintf(2, "%s: can't handle REL relocation records\n",
if (tpnt->init_flag & RELOCS_DONE)
return goof;
tpnt->init_flag |= RELOCS_DONE;
-
goof += _dl_parse_relocation_information(tpnt,
tpnt->dynamic_info[DT_REL], tpnt->dynamic_info[DT_RELSZ], 0);
#endif
if (tpnt->init_flag & RELOCS_DONE)
return goof;
tpnt->init_flag |= RELOCS_DONE;
-
goof += _dl_parse_relocation_information(tpnt,
tpnt->dynamic_info[DT_RELA], tpnt->dynamic_info[DT_RELASZ], 0);
#else
if (tpnt->init_flag & JMP_RELOCS_DONE)
return goof;
tpnt->init_flag |= JMP_RELOCS_DONE;
-
if (!_dl_not_lazy || *_dl_not_lazy == 0)
_dl_parse_lazy_relocation_information(tpnt,
tpnt->dynamic_info[DT_JMPREL], tpnt->dynamic_info[DT_PLTRELSZ], 0);
--- /dev/null
+/* Any assmbly language/system dependent hacks needed to setup boot1.c so it
+ * will work as expected and cope with whatever platform specific wierdness is
+ * needed for this architecture. See arm/boot1_arch.h for an example of what
+ * can be done.
+ */
+
+#define DL_BOOT(X) void _dl_boot (X)
--- /dev/null
+/* Any assmbly language/system dependent hacks needed to setup boot1.c so it
+ * will work as expected and cope with whatever platform specific wierdness is
+ * needed for this architecture. See arm/boot1_arch.h for an example of what
+ * can be done.
+ */
+
+#define DL_BOOT(X) void _dl_boot (X)
--- /dev/null
+/* Any assmbly language/system dependent hacks needed to setup boot1.c so it
+ * will work as expected and cope with whatever platform specific wierdness is
+ * needed for this architecture. See arm/boot1_arch.h for an example of what
+ * can be done.
+ */
+
+#define DL_BOOT(X) void _dl_boot (X)
--- /dev/null
+/* Any assmbly language/system dependent hacks needed to setup boot1.c so it
+ * will work as expected and cope with whatever platform specific wierdness is
+ * needed for this architecture. See arm/boot1_arch.h for an example of what
+ * can be done.
+ */
+
+#define DL_BOOT(X) void _dl_boot (X)
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