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authorEric Andersen <andersen@codepoet.org>2002-03-29 22:31:12 +0000
committerEric Andersen <andersen@codepoet.org>2002-03-29 22:31:12 +0000
commitf5980ff9299c469eb5c6920e67e9bf2b70925bba (patch)
treeccf5db83d81935b06f5416dd0680c8e2bb11ba09 /ldso
parent7719784a54932bac1db98d46a1933f3b1bbd192d (diff)
More mips support from sjhill
Diffstat (limited to 'ldso')
-rw-r--r--ldso/ldso/ldso.c6
-rw-r--r--ldso/ldso/mips/boot1_arch.h32
-rw-r--r--ldso/ldso/mips/dl-startup.h32
-rw-r--r--ldso/ldso/mips/dl-syscalls.h8
-rw-r--r--ldso/ldso/mips/ld_syscalls.h8
5 files changed, 84 insertions, 2 deletions
diff --git a/ldso/ldso/ldso.c b/ldso/ldso/ldso.c
index 825701dcd..456205adc 100644
--- a/ldso/ldso/ldso.c
+++ b/ldso/ldso/ldso.c
@@ -223,7 +223,7 @@ DL_BOOT(unsigned long args)
/* 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);
-#if defined(__arm__)
+#if defined(__arm__) || defined(__mips__)
aux_dat += 1;
#endif
argc = *(aux_dat - 1);
@@ -259,7 +259,7 @@ DL_BOOT(unsigned long args)
/* 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
-#ifndef __powerpc__
+#if !defined(__powerpc__) && !defined(__mips__)
|| _dl_strncmp((void *) header, ELFMAGIC, SELFMAG) != 0
#endif
) {
@@ -286,6 +286,8 @@ DL_BOOT(unsigned long args)
__asm__("\tmov %0, r10\n\t":"=r"(got));
#elif defined(__powerpc__)
__asm__("\tbl _GLOBAL_OFFSET_TABLE_-4@local\n\t":"=l"(got));
+#elif defined(__mips__)
+ __asm__("\tmove %0, $28\n\t":"=r"(got));
#else
/* Do things the slow way in C */
{
diff --git a/ldso/ldso/mips/boot1_arch.h b/ldso/ldso/mips/boot1_arch.h
new file mode 100644
index 000000000..e86ff77cf
--- /dev/null
+++ b/ldso/ldso/mips/boot1_arch.h
@@ -0,0 +1,32 @@
+/* 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.
+ */
+
+asm("
+ .text
+ .globl _dl_boot
+_dl_boot:
+ .set noreorder
+ bltzal $0, 0f
+ nop
+0: .cpload $31
+ .set reorder
+ # i386 ABI book says that the first entry of GOT holds
+ # the address of the dynamic structure. Though MIPS ABI
+ # doesn't say nothing about this, I emulate this here.
+ la $4, _DYNAMIC
+ # Subtract OFFSET_GP_GOT
+ sw $4, -0x7ff0($28)
+ move $4, $29
+ la $8, coff
+ bltzal $8, coff
+coff: subu $8, $31, $8
+ la $25, _dl_boot2
+ addu $25, $8
+ jalr $25
+");
+
+#define _dl_boot _dl_boot2
+#define DL_BOOT(X) static void __attribute__ ((unused)) _dl_boot (X)
diff --git a/ldso/ldso/mips/dl-startup.h b/ldso/ldso/mips/dl-startup.h
new file mode 100644
index 000000000..e86ff77cf
--- /dev/null
+++ b/ldso/ldso/mips/dl-startup.h
@@ -0,0 +1,32 @@
+/* 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.
+ */
+
+asm("
+ .text
+ .globl _dl_boot
+_dl_boot:
+ .set noreorder
+ bltzal $0, 0f
+ nop
+0: .cpload $31
+ .set reorder
+ # i386 ABI book says that the first entry of GOT holds
+ # the address of the dynamic structure. Though MIPS ABI
+ # doesn't say nothing about this, I emulate this here.
+ la $4, _DYNAMIC
+ # Subtract OFFSET_GP_GOT
+ sw $4, -0x7ff0($28)
+ move $4, $29
+ la $8, coff
+ bltzal $8, coff
+coff: subu $8, $31, $8
+ la $25, _dl_boot2
+ addu $25, $8
+ jalr $25
+");
+
+#define _dl_boot _dl_boot2
+#define DL_BOOT(X) static void __attribute__ ((unused)) _dl_boot (X)
diff --git a/ldso/ldso/mips/dl-syscalls.h b/ldso/ldso/mips/dl-syscalls.h
index 2327219df..feb54d4cf 100644
--- a/ldso/ldso/mips/dl-syscalls.h
+++ b/ldso/ldso/mips/dl-syscalls.h
@@ -4,6 +4,12 @@
* Linux/MIPS 2.4.17 version kernel.
*/
+#ifndef _SYS_STAT_H
+#define _SYS_STAT_H
+
+#define new_stat stat
+#include <asm/stat.h>
+
#define __NR_SYSCALL_BASE 4000
#define __NR_exit (__NR_SYSCALL_BASE + 1)
@@ -135,3 +141,5 @@ type name(atype a, btype b, ctype c, dtype d) \
return (type) __v0; \
return (type) -1; \
}
+
+#endif
diff --git a/ldso/ldso/mips/ld_syscalls.h b/ldso/ldso/mips/ld_syscalls.h
index 2327219df..feb54d4cf 100644
--- a/ldso/ldso/mips/ld_syscalls.h
+++ b/ldso/ldso/mips/ld_syscalls.h
@@ -4,6 +4,12 @@
* Linux/MIPS 2.4.17 version kernel.
*/
+#ifndef _SYS_STAT_H
+#define _SYS_STAT_H
+
+#define new_stat stat
+#include <asm/stat.h>
+
#define __NR_SYSCALL_BASE 4000
#define __NR_exit (__NR_SYSCALL_BASE + 1)
@@ -135,3 +141,5 @@ type name(atype a, btype b, ctype c, dtype d) \
return (type) __v0; \
return (type) -1; \
}
+
+#endif