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-rw-r--r--libc/sysdeps/linux/alpha/Makefile10
-rw-r--r--libc/sysdeps/linux/alpha/crt1.S (renamed from libc/sysdeps/linux/alpha/crt0.S)80
2 files changed, 43 insertions, 47 deletions
diff --git a/libc/sysdeps/linux/alpha/Makefile b/libc/sysdeps/linux/alpha/Makefile
index 5c7310b38..c37858380 100644
--- a/libc/sysdeps/linux/alpha/Makefile
+++ b/libc/sysdeps/linux/alpha/Makefile
@@ -19,8 +19,8 @@
TOPDIR=../../../../
include $(TOPDIR)Rules.mak
-CRT0_SRC = crt0.S
-CRT0_OBJ = crt0.o crt1.o
+CRT_SRC = crt1.S
+CRT_OBJ = crt1.o
CTOR_TARGETS=$(TOPDIR)lib/crti.o $(TOPDIR)lib/crtn.o
SSRC=__longjmp.S brk.S bsd-_setjmp.S bsd-setjmp.S clone.S \
@@ -36,12 +36,12 @@ OBJ_LIST=../../../obj.sysdeps.$(TARGET_ARCH)
all: $(OBJ_LIST)
-$(OBJ_LIST): $(OBJS) $(CRT0_OBJ) $(CTOR_TARGETS)
+$(OBJ_LIST): $(OBJS) $(CRT_OBJ) $(CTOR_TARGETS)
echo $(patsubst %, sysdeps/linux/$(TARGET_ARCH)/%, $(OBJS)) > $(OBJ_LIST)
$(INSTALL) -d $(TOPDIR)lib/
- cp $(CRT0_OBJ) $(TOPDIR)lib/
+ cp $(CRT_OBJ) $(TOPDIR)lib/
-$(CRT0_OBJ): $(CRT0_SRC)
+$(CRT_OBJ): $(CRT_SRC)
$(CC) $(ASFLAGS) -DL_$* $< -c -o $*.o
$(STRIPTOOL) -x -R .note -R .comment $*.o
diff --git a/libc/sysdeps/linux/alpha/crt0.S b/libc/sysdeps/linux/alpha/crt1.S
index e8d0c5498..0831ecf6f 100644
--- a/libc/sysdeps/linux/alpha/crt0.S
+++ b/libc/sysdeps/linux/alpha/crt1.S
@@ -19,66 +19,62 @@
02111-1307 USA. */
#include <features.h>
+#include <asm/regdef.h>
-#define a0 $16 /* argument registers (caller-saved) */
-#define a1 $17
-#define a2 $18
-#define a3 $19
-#define a4 $20
-#define a5 $21
-#define ra $26 /* return address register */
-
-#define s6 $15
-#define fp s6 /* frame-pointer (s6 in frame-less procedures) */
-#define gp $29 /* global pointer */
-#define sp $30 /* stack pointer */
-#define zero $31 /* reads as zero, writes are noops */
-
- .text
- .align 3
- .global _start
- .ent _start, 0
- .type _start,@function
-#if ! defined(__UCLIBC_CTOR_DTOR__)
- .weak _init
- .weak _fini
+.text
+.global _start
+.ent _start,0
+.type _start,%function
+#if defined(__UCLIBC_CTOR_DTOR__)
+.type _init,%function
+.type _fini,%function
+#else
+.weak _init
+.weak _fini
#endif
- .type __uClibc_main,@function
+.type __uClibc_main,%function
/* Stick in a dummy reference to main(), so that if an application
* is linking when the main() function is in a static library (.a)
* we can be sure that main() actually gets linked in */
- .type main,@function
+.type main,%function
_start:
- .frame fp, 0, zero
- mov zero, fp
+ .frame $15, 0, $15
br gp, 1f
1: ldgp gp, 0(gp)
subq sp, 16, sp
+ mov 0, $15
.prologue 0
- ldl a0, 16(sp) /* get argc */
- lda a1, 24(sp) /* get argv */
- addq a0, 1, a2
- s8addq a2, a1, a2 /* Calculate environ */
+ /* Load address of the user's main function. */
+ lda a0, main
+
+ ldl a1, 16(sp) /* get argc */
+ lda a2, 24(sp) /* get argv */
+
+ /* Load address of our own entry points to .fini and .init. */
+ lda a3, _init
+ lda a4, _fini
- /* Call the user's main function, and exit with its value.
- But let the libc call main. */
+ /* Store address of the shared library termination function. */
+ mov v0, a5
+
+ /* Provide the highest stack address to the user code. */
+ stq sp, 0(sp)
+
+ /* Call the user's main function, and exit with its value.
+ * But let the libc call main. */
jsr ra, __uClibc_main
- /* Die very horribly if exit returns. Call_pal hlt is callable from
- kernel mode only; this will result in an illegal instruction trap. */
+ /* Die very horribly if exit returns. Call_pal hlt is callable from
+ * kernel mode only; this will result in an illegal instruction trap. */
call_pal 0
.end _start
-/* For ECOFF backwards compatibility. */
-.weak __start;
- __start = _start
-
/* Define a symbol for the first piece of initialized data. */
- .data
- .globl __data_start
+.data
+.global __data_start
__data_start:
- .long 0
- .weak data_start
+.long 0
+.weak data_start
data_start = __data_start