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authorUlrich Drepper <drepper@redhat.com>2002-09-05 10:28:51 +0000
committerUlrich Drepper <drepper@redhat.com>2002-09-05 10:28:51 +0000
commit92b27c7470ca2844e4e1265746cb56ad1f664df3 (patch)
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Update.
2002-07-29 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/__longjmp.S: Moved to... * sysdeps/powerpc/powerpc32/__longjmp.S: ...here. * sysdeps/powerpc/add_n.S: Moved to... * sysdeps/powerpc/powerpc32/add_n.S: ...here. * sysdeps/powerpc/addmul_1.S: Moved to... * sysdeps/powerpc/powerpc32/addmul_1.S: ...here. * sysdeps/powerpc/atomicity.h: Moved to... * sysdeps/powerpc/powerpc32/atomicity.h: ...here. * sysdeps/powerpc/backtrace.c: Moved to... * sysdeps/powerpc/powerpc32/backtrace.c: ...here. * sysdeps/powerpc/bp-asm.h: Moved to... * sysdeps/powerpc/powerpc32/bp-asm.h: ...here. * sysdeps/powerpc/bsd-_setjmp.S: Moved to... * sysdeps/powerpc/powerpc32/bsd-_setjmp.S: ...here. * sysdeps/powerpc/bsd-setjmp.S: Moved to... * sysdeps/powerpc/powerpc32/bsd-setjmp.S: ...here. * sysdeps/powerpc/dl-machine.c: Moved to... * sysdeps/powerpc/powerpc32/dl-machine.c: ...here. * sysdeps/powerpc/dl-machine.h: Moved to... * sysdeps/powerpc/powerpc32/dl-machine.h: ...here. * sysdeps/powerpc/dl-start.S: Moved to... * sysdeps/powerpc/powerpc32/dl-start.S: ...here. * sysdeps/powerpc/gprrest0.S: Moved to... * sysdeps/powerpc/powerpc32/gprrest0.S: ...here. * sysdeps/powerpc/gprrest1.S: Moved to... * sysdeps/powerpc/powerpc32/gprrest1.S: ...here. * sysdeps/powerpc/gprsave0.S: Moved to... * sysdeps/powerpc/powerpc32/gprsave0.S: ...here. * sysdeps/powerpc/gprsave1.S: Moved to... * sysdeps/powerpc/powerpc32/gprsave1.S: ...here. * sysdeps/powerpc/lshift.S: Moved to... * sysdeps/powerpc/powerpc32/lshift.S: ...here. * sysdeps/powerpc/memset.S: Moved to... * sysdeps/powerpc/powerpc32/memset.S: ...here. * sysdeps/powerpc/mul_1.S: Moved to... * sysdeps/powerpc/powerpc32/mul_1.S: ...here. * sysdeps/powerpc/ppc-mcount.S: Moved to... * sysdeps/powerpc/powerpc32/ppc-mcount.S: ...here. * sysdeps/powerpc/register-dump.h: Moved to... * sysdeps/powerpc/powerpc32/register-dump.h: ...here. * sysdeps/powerpc/rshift.S: Moved to... * sysdeps/powerpc/powerpc32/rshift.S: ...here. * sysdeps/powerpc/setjmp.S: Moved to... * sysdeps/powerpc/powerpc32/setjmp.S: ...here. * sysdeps/powerpc/stpcpy.S: Moved to... * sysdeps/powerpc/powerpc32/stpcpy.S: ...here. * sysdeps/powerpc/strchr.S: Moved to... * sysdeps/powerpc/powerpc32/strchr.S: ...here. * sysdeps/powerpc/strcmp.S: Moved to... * sysdeps/powerpc/powerpc32/strcmp.S: ...here. * sysdeps/powerpc/strcpy.S: Moved to... * sysdeps/powerpc/powerpc32/strcpy.S: ...here. * sysdeps/powerpc/strlen.S: Moved to... * sysdeps/powerpc/powerpc32/strlen.S: ...here. * sysdeps/powerpc/sub_n.S: Moved to... * sysdeps/powerpc/powerpc32/sub_n.S: ...here. * sysdeps/powerpc/submul_1.S: Moved to... * sysdeps/powerpc/powerpc32/submul_1.S: ...here. * sysdeps/powerpc/elf/bzero.S: Moved to... * sysdeps/powerpc/powerpc32/elf/bzero.S: ...here. * sysdeps/powerpc/elf/start.S: Moved to... * sysdeps/powerpc/powerpc32/elf/start.S: ...here. * sysdeps/powerpc/fpu/__longjmp.S: Moved to... * sysdeps/powerpc/powerpc32/fpu/__longjmp.S: ...here. * sysdeps/powerpc/fpu/fprrest.S: Moved to... * sysdeps/powerpc/powerpc32/fpu/fprrest.S: ...here. * sysdeps/powerpc/fpu/fprsave.S: Moved to... * sysdeps/powerpc/powerpc32/fpu/fprsave.S: ...here. * sysdeps/powerpc/fpu/setjmp.S: Moved to... * sysdeps/powerpc/powerpc32/fpu/setjmp.S: ...here. * sysdeps/powerpc/fpu/s_copysign.S: Moved to... * sysdeps/powerpc/powerpc32/fpu/s_copysign.S: ...here. * sysdeps/powerpc/fpu/s_copysignf.S: Moved to... * sysdeps/powerpc/powerpc32/fpu/s_copysignf.S: ...here. * sysdeps/unix/sysv/linux/powerpc/brk.S: Moved to... * sysdeps/unix/sysv/linux/powerpc/powerpc32/brk.S: ...here. * sysdeps/unix/sysv/linux/powerpc/clone.S: Moved to... * sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S: ...here. * sysdeps/unix/sysv/linux/powerpc/glob64.c: Moved to... * sysdeps/unix/sysv/linux/powerpc/powerpc32/glob64.c: ...here. * sysdeps/unix/sysv/linux/powerpc/kernel_stat.h: Moved to... * sysdeps/unix/sysv/linux/powerpc/powerpc32/kernel_stat.h: ...here. * sysdeps/unix/sysv/linux/powerpc/socket.S: Moved to... * sysdeps/unix/sysv/linux/powerpc/powerpc32/socket.S: ...here. * sysdeps/unix/sysv/linux/powerpc/sysdep.h: Moved to... * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h: ...here. * sysdeps/unix/sysv/linux/powerpc/syscalls.list: Moved to... * sysdeps/unix/sysv/linux/powerpc/powerpc32/syscalls.list: ...here. Support PowerPC64. Separate powerpc into powerpc/powerpc32 and powerpc/powerpc64. 2002-07-29 Steven Munroe <sjmunroe@us.ibm.com> * FAQ.in: Add powerpc64 to supported targets list. Also state the minimum gcc version is 3.2 * README: Add powerpc64 to supported targets list. * configure.in: Change machine=powerpc to machine=powerpc/powerpc32. Add powerpc64 and machine=powerpc/powerpc64. (HAVE_ASM_GLOBAL_DOT_NAME): Define if linux*powerpc/powerpc64*. * shlib-versions: Set DEFAULT version to 2.2.5 for powerpc64. * sysdeps/powerpc/Dist: Remove dl-machine.c, dl-start.S, ppc-mcount.S, gprsave1.S, gprsave0.S, gprrest1.S, and gprrest0.S. * sysdeps/powerpc/powerpc32/Dist: New file. * sysdeps/powerpc/Implies: Remove wordsize-32 and powerpc/soft-fp. * sysdeps/powerpc/powerpc32/Implies: New file. * sysdeps/powerpc/Makefile(cflags): Remove powerpc32 specific cflags. ($(with-fp) = no): Move test to powerpc32/Makefile. ($(subdir) = misc): Move to powerpc32/Makefile. ($(build-shared) = yes): Move to powerpc32/Makefile. ($(subdir) = csu): Move to powerpc32/Makefile. (sysdep-rtld-routines): Remove dl-start. Moved these bits to ... * sysdeps/powerpc/powerpc32/Makefile: New file. * sysdeps/powerpc/Versions: Remove libgcc functions. * sysdeps/powerpc/powerpc32/Versions: New file. * sysdeps/powerpc/fpu/Makefile: Remove fprsave and fprrest. * sysdeps/powerpc/powerpc32/fpu/Makefile: New file. * sysdeps/unix/sysv/linux/configure.in (powerpc*): Set arch_minimum_kernel=2.4.19 for powerpc/powerpc64. Also set libc_cv_gcc_unwind_find_fde=yes only if !powerpc/powerpc64. ($machine): Add powerpc/powerpc64 to if ... | for libc_cv_slibdir=/libc64. (powerpc*): Set ldd_rewrite_script. * sysdeps/unix/sysv/linux/powerpc/ldd-rewrite.sed: New file. * sysdeps/unix/sysv/linux/powerpc/Dist: Remove clone.S. * sysdeps/unix/sysv/linux/powerpc/powerpc32/Dist: New file. Add clone.S. * sysdeps/unix/sysv/linux/powerpc/Makefile: Remove oldgetrlimit64. * sysdeps/unix/sysv/linux/powerpc/Versions: Remove GLIBC_2.0 functions. Remove GLIBC_2.2 functions except getrlimit and setrlimit. Moved them to ... * sysdeps/unix/sysv/linux/powerpc/powerpc32/Versions: New file. 2002-09-04 Ulrich Drepper <drepper@redhat.com> * libio/tst-atime.c: Include <errno.h>. (do_test): Only perform fstatvfs check if ST_NOATIME is defined. 2002-09-03 Isamu Hasegawa <isamu@yamato.ibm.com> * posix/regcomp.c (regcomp): Append "__restrict" modifier to avoid warnings of some compilers. (build_collating_symbol): Change the type of characters from "unsigned char" to "char", and append a cast to "char*" pointer in array subscript. (build_collating_symbol): Likewise. (build_equiv_class): Likewise. (build_charclass): Likewise. (re_compile_pattern): Remove incorrect cast. (re_compile_fastmap_iter): Change the type of characters from "unsigned char" to "char", and append a cast to "char*" pointer in array subscript. (parse_bracket_exp): Likewise. * posix/regex_internal.c (re_string_construct_common): Likewise. (re_string_allocate): Likewise. (re_string_construct): Likewise. (re_string_realloc_buffers): Likewise. (build_wcs_buffer): Likewise. (re_string_reconstruct): Likewise. * posix/regex_internal.h: Change the type of characters in re_string_t and bracket_elem_t from "unsigned char" to "char". * posix/regexec.c (regexec): Append "__restrict" modifier to avoid warnings of some compilers. (transit_state_bkref_loop): Change the type of characters from "unsigned char" to "char", and append a cast to "char*" pointer in array subscript. (check_node_accept_bytes): Likewise. (find_collation_sequence_value): Likewise.
Diffstat (limited to 'sysdeps/powerpc/powerpc32/dl-start.S')
-rw-r--r--sysdeps/powerpc/powerpc32/dl-start.S105
1 files changed, 105 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc32/dl-start.S b/sysdeps/powerpc/powerpc32/dl-start.S
new file mode 100644
index 0000000000..527982bfdf
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/dl-start.S
@@ -0,0 +1,105 @@
+/* Machine-dependent ELF startup code. PowerPC version.
+ Copyright (C) 1995-2000, 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+
+/* Initial entry point code for the dynamic linker.
+ The C function `_dl_start' is the real entry point;
+ its return value is the user program's entry point. */
+ENTRY(_start)
+/* We start with the following on the stack, from top:
+ argc (4 bytes);
+ arguments for program (terminated by NULL);
+ environment variables (terminated by NULL);
+ arguments for the program loader. */
+
+/* Call _dl_start with one parameter pointing at argc */
+ mr r3,r1
+/* (we have to frob the stack pointer a bit to allow room for
+ _dl_start to save the link register). */
+ li r4,0
+ addi r1,r1,-16
+ stw r4,0(r1)
+ bl _dl_start@local
+
+ /* FALLTHRU */
+ENTRY(_dl_start_user)
+/* Now, we do our main work of calling initialisation procedures.
+ The ELF ABI doesn't say anything about parameters for these,
+ so we just pass argc, argv, and the environment.
+ Changing these is strongly discouraged (not least because argc is
+ passed by value!). */
+
+/* Put our GOT pointer in r31, */
+ bl _GLOBAL_OFFSET_TABLE_-4@local
+ mflr r31
+/* the address of _start in r30, */
+ mr r30,r3
+/* &_dl_argc in 29, &_dl_argv in 27, and _dl_loaded in 28. */
+ lwz r28,_rtld_global@got(r31)
+ lwz r29,_dl_argc@got(r31)
+ lwz r27,_dl_argv@got(r31)
+
+/* Call _dl_init (_dl_loaded, _dl_argc, _dl_argv, _dl_argv+_dl_argc+1). */
+ lwz r3,0(r28)
+ lwz r4,0(r29)
+ lwz r5,0(r27)
+ slwi r6,r4,2
+ add r6,r5,r6
+ addi r6,r6,4
+ bl _dl_init_internal@local
+
+/* Now, to conform to the ELF ABI, we have to: */
+/* Pass argc (actually _dl_argc) in r3; */
+ lwz r3,0(r29)
+/* pass argv (actually _dl_argv) in r4; */
+ lwz r4,0(r27)
+/* pass envp (actually _dl_argv+_dl_argc+1) in r5; */
+ slwi r5,r3,2
+ add r6,r4,r5
+ addi r5,r6,4
+/* pass the auxilary vector in r6. This is passed to us just after _envp. */
+2: lwzu r0,4(r6)
+ cmpwi r0,0
+ bne 2b
+ addi r6,r6,4
+/* Pass a termination function pointer (in this case _dl_fini) in r7. */
+ lwz r7,_dl_fini@got(r31)
+/* Now, call the start function in r30... */
+ mtctr r30
+ lwz r26,_dl_starting_up@got(r31)
+/* Pass the stack pointer in r1 (so far so good), pointing to a NULL value.
+ (This lets our startup code distinguish between a program linked statically,
+ which linux will call with argc on top of the stack which will hopefully
+ never be zero, and a dynamically linked program which will always have
+ a NULL on the top of the stack).
+ Take the opportunity to clear LR, so anyone who accidentally returns
+ from _start gets SEGV. Also clear the next few words of the stack. */
+
+ li r31,0
+ stw r31,0(r1)
+ mtlr r31
+ stw r31,4(r1)
+ stw r31,8(r1)
+ stw r31,12(r1)
+/* Clear _dl_starting_up. */
+ stw r31,0(r26)
+/* Go do it! */
+ bctr
+END(_start)