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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/ldso/mips/dl-startup.h
parent7719784a54932bac1db98d46a1933f3b1bbd192d (diff)
More mips support from sjhill
Diffstat (limited to 'ldso/ldso/mips/dl-startup.h')
-rw-r--r--ldso/ldso/mips/dl-startup.h32
1 files changed, 32 insertions, 0 deletions
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)