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Update.
2001-07-26 kaz Kojima <kkojima@rr.iij4u.or.jp> * sysdeps/sh/dl-machine.h (elf_machine_load_address): Don't use multi-line strings. (FUN_ADDR, FGR_SAVE, ELF_MACHINE_RUNTIME_TRAMPOLINE): Likewise. (elf_machine_rela): Handle unaligned relocation.
This commit is contained in:
Ulrich Drepper
parent
370f00c3a7
commit
045fcd2621
@ -1,3 +1,10 @@
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2001-07-26 kaz Kojima <kkojima@rr.iij4u.or.jp>
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* sysdeps/sh/dl-machine.h (elf_machine_load_address): Don't use
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multi-line strings.
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(FUN_ADDR, FGR_SAVE, ELF_MACHINE_RUNTIME_TRAMPOLINE): Likewise.
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(elf_machine_rela): Handle unaligned relocation.
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2001-06-07 David Mosberger <davidm@hpl.hp.com>
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* sysdeps/ia64/dl-symaddr.c (_dl_symbol_address): Update call to
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14
NEWS
14
NEWS
@ -1,4 +1,4 @@
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GNU C Library NEWS -- history of user-visible changes. 2001-6-18
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GNU C Library NEWS -- history of user-visible changes. 2001-7-25
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Copyright (C) 1992-2000, 2001 Free Software Foundation, Inc.
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See the end for copying conditions.
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@ -16,6 +16,18 @@ Version 2.2.4
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* Speed of regex for single-byte locales is back to previous levels.
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Patch by Isamu Hasegawa.
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* Alpha, SPARC, and IA-64 now also using floating stacks
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* Startup time of internatioanlized applications greatly improved through
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iconv cache. Use iconvconfig to generate the cache file.
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Contributed by Ulrich Drepper.
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* The IA-64 specific part of ld.so was rewritten to eliminate some pretty
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severe performance problems. Patch by David Mosberger.
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* The Hurd port got a lot more functionality like AIO, various stdio
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extensions, etc. Mainly done by Roland McGrath.
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Version 2.2.3
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@ -1,3 +1,7 @@
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2001-07-26 kaz Kojima <kkojima@rr.iij4u.or.jp>
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* sysdeps/sh/pt-machine.h (THREAD_SELF, INIT_THREAD_SELF): Defined.
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2001-07-24 Ulrich Drepper <drepper@redhat.com>
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* tst-context.c (main): Print explanation before bailing out
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@ -44,3 +44,13 @@ testandset (int *spinlock)
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of the stack, just something somewhere in the current frame. */
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#define CURRENT_STACK_FRAME stack_pointer
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register char * stack_pointer __asm__ ("r15");
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/* Return the thread descriptor for the current thread. */
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struct _pthread_descr_struct;
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#define THREAD_SELF \
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({ struct _pthread_descr_struct *self; \
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__asm__("stc gbr,%0" : "=r" (self)); self;})
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/* Initialize the thread-unique value. */
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#define INIT_THREAD_SELF(descr, nr) \
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({ __asm__("ldc %0,gbr" : : "r" (descr));})
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@ -53,15 +53,15 @@ static inline Elf32_Addr __attribute__ ((unused))
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elf_machine_load_address (void)
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{
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Elf32_Addr addr;
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asm ("mov.l .L1,r0
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mov.l .L3,r2
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add r12,r2
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mov.l @(r0,r12),r0
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bra .L2
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sub r0,r2
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.align 2
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.L1: .long _dl_start@GOT
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.L3: .long _dl_start@GOTOFF
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asm ("mov.l .L1,r0\n\
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mov.l .L3,r2\n\
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add r12,r2\n\
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mov.l @(r0,r12),r0\n\
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bra .L2\n\
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sub r0,r2\n\
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.align 2\n\
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.L1: .long _dl_start@GOT\n\
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.L3: .long _dl_start@GOTOFF\n\
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.L2: mov r2,%0"
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: "=r" (addr) : : "r0", "r1", "r2");
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return addr;
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@ -114,13 +114,13 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
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#ifdef SHARED
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#define FUN_ADDR "\
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mov.l 1f,r2
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mova 1f,r0
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bra 2f
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add r0,r2 ! Get GOT address in r2
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0: .align 2
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1: .long _GLOBAL_OFFSET_TABLE_
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2: mov.l 3f,r0
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mov.l 1f,r2\n\
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mova 1f,r0\n\
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bra 2f\n\
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add r0,r2 ! Get GOT address in r2\n\
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0: .align 2\n\
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1: .long _GLOBAL_OFFSET_TABLE_\n\
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2: mov.l 3f,r0\n\
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add r2,r0"
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#define GOTJMP(x) #x "@GOTOFF"
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#else
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@ -131,27 +131,27 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
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#ifdef HAVE_FPU
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#define FGR_SAVE "\
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sts.l fpscr, @-r15
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mov #8,r3
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swap.w r3, r3
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lds r3, fpscr
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fmov.s fr11, @-r15
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fmov.s fr10, @-r15
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fmov.s fr9, @-r15
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fmov.s fr8, @-r15
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fmov.s fr7, @-r15
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fmov.s fr6, @-r15
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fmov.s fr5, @-r15
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sts.l fpscr, @-r15\n\
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mov #8,r3\n\
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swap.w r3, r3\n\
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lds r3, fpscr\n\
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fmov.s fr11, @-r15\n\
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fmov.s fr10, @-r15\n\
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fmov.s fr9, @-r15\n\
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fmov.s fr8, @-r15\n\
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fmov.s fr7, @-r15\n\
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fmov.s fr6, @-r15\n\
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fmov.s fr5, @-r15\n\
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fmov.s fr4, @-r15"
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#define FGR_LOAD "\
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fmov.s @r15+, fr4
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fmov.s @r15+, fr5
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fmov.s @r15+, fr6
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fmov.s @r15+, fr7
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fmov.s @r15+, fr8
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fmov.s @r15+, fr9
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fmov.s @r15+, fr10
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fmov.s @r15+, fr11
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fmov.s @r15+, fr4\n\
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fmov.s @r15+, fr5\n\
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fmov.s @r15+, fr6\n\
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fmov.s @r15+, fr7\n\
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fmov.s @r15+, fr8\n\
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fmov.s @r15+, fr9\n\
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fmov.s @r15+, fr10\n\
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fmov.s @r15+, fr11\n\
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lds.l @r15+, fpscr"
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#else
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#define FGR_SAVE ""
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@ -160,140 +160,140 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
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#ifndef PROF
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# define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\
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.text
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.globl _dl_runtime_resolve
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.type _dl_runtime_resolve, @function
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.align 5
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_dl_runtime_resolve:
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mov.l r2,@-r15
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mov.l r3,@-r15
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mov.l r4,@-r15
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mov.l r5,@-r15
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mov.l r6,@-r15
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mov.l r7,@-r15
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mov.l r12,@-r15
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movt r3 ! Save T flag.
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mov.l r3,@-r15
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" FGR_SAVE "
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sts.l pr,@-r15
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tst r0,r0
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bt 1f
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mov r0,r2
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1:
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mov r0,r4 ! PLT type
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mov r2,r5 ! link map address
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" FUN_ADDR "
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jsr @r0 ! Call resolver.
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mov r1,r6 ! reloc offset
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lds.l @r15+,pr ! Get register content back.
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" FGR_LOAD "
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mov.l @r15+,r3
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shal r3 ! Lode T flag.
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mov.l @r15+,r12
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mov.l @r15+,r7
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mov.l @r15+,r6
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mov.l @r15+,r5
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mov.l @r15+,r4
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mov.l @r15+,r3
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jmp @r0 ! Jump to function address.
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mov.l @r15+,r2
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.align 2
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3:
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.long " GOTJMP (fixup) "
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.size _dl_runtime_resolve, .-_dl_runtime_resolve
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.globl _dl_runtime_profile
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.type _dl_runtime_profile, @function
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.align 5
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_dl_runtime_profile:
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mov.l r2,@-r15
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mov.l r3,@-r15
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mov.l r4,@-r15
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mov.l r5,@-r15
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mov.l r6,@-r15
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mov.l r7,@-r15
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mov.l r12,@-r15
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movt r3 ! Save T flag.
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mov.l r3,@-r15
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" FGR_SAVE "
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sts.l pr,@-r15
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tst r0,r0
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bt 1f
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mov r0,r2
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1:
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mov r0,r4 ! PLT type
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mov r2,r5 ! link map address
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sts pr,r7 ! return address
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" FUN_ADDR "
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jsr @r0 ! Call resolver.
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mov r1,r6 ! reloc offset
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lds.l @r15+,pr ! Get register content back.
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" FGR_LOAD "
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mov.l @r15+,r3
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shal r3 ! Lode T flag.
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mov.l @r15+,r12
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mov.l @r15+,r7
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mov.l @r15+,r6
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mov.l @r15+,r5
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mov.l @r15+,r4
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mov.l @r15+,r3
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jmp @r0 ! Jump to function address.
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mov.l @r15+,r2
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.align 2
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3:
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.long " GOTJMP (profile_fixup) "
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.size _dl_runtime_profile, .-_dl_runtime_profile
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.previous
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.text\n\
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.globl _dl_runtime_resolve\n\
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.type _dl_runtime_resolve, @function\n\
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.align 5\n\
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_dl_runtime_resolve:\n\
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mov.l r2,@-r15\n\
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mov.l r3,@-r15\n\
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mov.l r4,@-r15\n\
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mov.l r5,@-r15\n\
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mov.l r6,@-r15\n\
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mov.l r7,@-r15\n\
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mov.l r12,@-r15\n\
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movt r3 ! Save T flag.\n\
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mov.l r3,@-r15\n\
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" FGR_SAVE "\n\
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sts.l pr,@-r15\n\
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tst r0,r0\n\
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bt 1f\n\
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mov r0,r2\n\
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1:\n\
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mov r0,r4 ! PLT type\n\
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mov r2,r5 ! link map address\n\
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" FUN_ADDR "\n\
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jsr @r0 ! Call resolver.\n\
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mov r1,r6 ! reloc offset\n\
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lds.l @r15+,pr ! Get register content back.\n\
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" FGR_LOAD "\n\
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mov.l @r15+,r3\n\
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shal r3 ! Lode T flag.\n\
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mov.l @r15+,r12\n\
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mov.l @r15+,r7\n\
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mov.l @r15+,r6\n\
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mov.l @r15+,r5\n\
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mov.l @r15+,r4\n\
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mov.l @r15+,r3\n\
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jmp @r0 ! Jump to function address.\n\
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mov.l @r15+,r2\n\
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.align 2\n\
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3:\n\
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.long " GOTJMP (fixup) "\n\
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.size _dl_runtime_resolve, .-_dl_runtime_resolve\n\
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\n\
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.globl _dl_runtime_profile\n\
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.type _dl_runtime_profile, @function\n\
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.align 5\n\
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_dl_runtime_profile:\n\
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mov.l r2,@-r15\n\
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mov.l r3,@-r15\n\
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mov.l r4,@-r15\n\
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mov.l r5,@-r15\n\
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mov.l r6,@-r15\n\
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mov.l r7,@-r15\n\
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mov.l r12,@-r15\n\
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movt r3 ! Save T flag.\n\
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mov.l r3,@-r15\n\
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" FGR_SAVE "\n\
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sts.l pr,@-r15\n\
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tst r0,r0\n\
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bt 1f\n\
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mov r0,r2\n\
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1:\n\
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mov r0,r4 ! PLT type\n\
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mov r2,r5 ! link map address\n\
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sts pr,r7 ! return address\n\
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" FUN_ADDR "\n\
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jsr @r0 ! Call resolver.\n\
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mov r1,r6 ! reloc offset\n\
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lds.l @r15+,pr ! Get register content back.\n\
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" FGR_LOAD "\n\
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mov.l @r15+,r3\n\
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shal r3 ! Lode T flag.\n\
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mov.l @r15+,r12\n\
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mov.l @r15+,r7\n\
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mov.l @r15+,r6\n\
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mov.l @r15+,r5\n\
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mov.l @r15+,r4\n\
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mov.l @r15+,r3\n\
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jmp @r0 ! Jump to function address.\n\
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mov.l @r15+,r2\n\
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.align 2\n\
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3:\n\
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.long " GOTJMP (profile_fixup) "\n\
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.size _dl_runtime_profile, .-_dl_runtime_profile\n\
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.previous\n\
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");
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#else
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# define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\
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.text
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.globl _dl_runtime_resolve
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.globl _dl_runtime_profile
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.type _dl_runtime_resolve, @function
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.type _dl_runtime_profile, @function
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.align 5
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_dl_runtime_resolve:
|
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_dl_runtime_profile:
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mov.l r2,@-r15
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mov.l r3,@-r15
|
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mov.l r4,@-r15
|
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mov.l r5,@-r15
|
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mov.l r6,@-r15
|
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mov.l r7,@-r15
|
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mov.l r12,@-r15
|
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movt r3 ! Save T flag.
|
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mov.l r3,@-r15
|
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" FGR_SAVE "
|
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sts.l pr,@-r15
|
||||
tst r0,r0
|
||||
bt 1f
|
||||
mov r0,r2
|
||||
1:
|
||||
mov r0,r4 ! PLT type
|
||||
mov r2,r5 ! link map address
|
||||
sts pr,r7 ! return address
|
||||
" FUN_ADDR "
|
||||
jsr @r0 ! Call resolver.
|
||||
mov r1,r6 ! reloc offset
|
||||
lds.l @r15+,pr ! Get register content back.
|
||||
" FGR_LOAD "
|
||||
mov.l @r15+,r3
|
||||
shal r3 ! Lode T flag.
|
||||
mov.l @r15+,r12
|
||||
mov.l @r15+,r7
|
||||
mov.l @r15+,r6
|
||||
mov.l @r15+,r5
|
||||
mov.l @r15+,r4
|
||||
mov.l @r15+,r3
|
||||
jmp @r0 ! Jump to function address.
|
||||
mov.l @r15+,r2
|
||||
.align 2
|
||||
3:
|
||||
.long " GOTJMP (fixup) "
|
||||
.size _dl_runtime_resolve, .-_dl_runtime_resolve
|
||||
.size _dl_runtime_profile, .-_dl_runtime_profile
|
||||
.previous
|
||||
.text\n\
|
||||
.globl _dl_runtime_resolve\n\
|
||||
.globl _dl_runtime_profile\n\
|
||||
.type _dl_runtime_resolve, @function\n\
|
||||
.type _dl_runtime_profile, @function\n\
|
||||
.align 5\n\
|
||||
_dl_runtime_resolve:\n\
|
||||
_dl_runtime_profile:\n\
|
||||
mov.l r2,@-r15\n\
|
||||
mov.l r3,@-r15\n\
|
||||
mov.l r4,@-r15\n\
|
||||
mov.l r5,@-r15\n\
|
||||
mov.l r6,@-r15\n\
|
||||
mov.l r7,@-r15\n\
|
||||
mov.l r12,@-r15\n\
|
||||
movt r3 ! Save T flag.\n\
|
||||
mov.l r3,@-r15\n\
|
||||
" FGR_SAVE "\n\
|
||||
sts.l pr,@-r15\n\
|
||||
tst r0,r0\n\
|
||||
bt 1f\n\
|
||||
mov r0,r2\n\
|
||||
1:\n\
|
||||
mov r0,r4 ! PLT type\n\
|
||||
mov r2,r5 ! link map address\n\
|
||||
sts pr,r7 ! return address\n\
|
||||
" FUN_ADDR "\n\
|
||||
jsr @r0 ! Call resolver.\n\
|
||||
mov r1,r6 ! reloc offset\n\
|
||||
lds.l @r15+,pr ! Get register content back.\n\
|
||||
" FGR_LOAD "\n\
|
||||
mov.l @r15+,r3\n\
|
||||
shal r3 ! Lode T flag.\n\
|
||||
mov.l @r15+,r12\n\
|
||||
mov.l @r15+,r7\n\
|
||||
mov.l @r15+,r6\n\
|
||||
mov.l @r15+,r5\n\
|
||||
mov.l @r15+,r4\n\
|
||||
mov.l @r15+,r3\n\
|
||||
jmp @r0 ! Jump to function address.\n\
|
||||
mov.l @r15+,r2\n\
|
||||
.align 2\n\
|
||||
3:\n\
|
||||
.long " GOTJMP (fixup) "\n\
|
||||
.size _dl_runtime_resolve, .-_dl_runtime_resolve\n\
|
||||
.size _dl_runtime_profile, .-_dl_runtime_profile\n\
|
||||
.previous\n\
|
||||
");
|
||||
#endif
|
||||
|
||||
@ -446,6 +446,29 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
|
||||
const Elf32_Sym *sym, const struct r_found_version *version,
|
||||
Elf32_Addr *const reloc_addr)
|
||||
{
|
||||
Elf32_Addr value;
|
||||
|
||||
#define COPY_UNALIGNED_WORD(sw, tw, align) \
|
||||
{ \
|
||||
void *__s = &(sw), *__t = &(tw); \
|
||||
switch ((align)) \
|
||||
{ \
|
||||
case 0: \
|
||||
*(unsigned long *) __t = *(unsigned long *) __s; \
|
||||
break; \
|
||||
case 2: \
|
||||
*((unsigned short *) __t)++ = *((unsigned short *) __s)++; \
|
||||
*((unsigned short *) __t) = *((unsigned short *) __s); \
|
||||
break; \
|
||||
default: \
|
||||
*((unsigned char *) __t)++ = *((unsigned char *) __s)++; \
|
||||
*((unsigned char *) __t)++ = *((unsigned char *) __s)++; \
|
||||
*((unsigned char *) __t)++ = *((unsigned char *) __s)++; \
|
||||
*((unsigned char *) __t) = *((unsigned char *) __s); \
|
||||
break; \
|
||||
} \
|
||||
}
|
||||
|
||||
if (ELF32_R_TYPE (reloc->r_info) == R_SH_RELATIVE)
|
||||
{
|
||||
#ifndef RTLD_BOOTSTRAP
|
||||
@ -453,15 +476,20 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
|
||||
#endif
|
||||
{
|
||||
if (reloc->r_addend)
|
||||
*reloc_addr = map->l_addr + reloc->r_addend;
|
||||
value = map->l_addr + reloc->r_addend;
|
||||
else
|
||||
*reloc_addr += map->l_addr;
|
||||
{
|
||||
COPY_UNALIGNED_WORD (*reloc_addr, value, (int) reloc_addr & 3);
|
||||
value += map->l_addr;
|
||||
}
|
||||
COPY_UNALIGNED_WORD (value, *reloc_addr, (int) reloc_addr & 3);
|
||||
}
|
||||
}
|
||||
else if (ELF32_R_TYPE (reloc->r_info) != R_SH_NONE)
|
||||
{
|
||||
const Elf32_Sym *const refsym = sym;
|
||||
Elf32_Addr value = RESOLVE (&sym, version, ELF32_R_TYPE (reloc->r_info));
|
||||
|
||||
value = RESOLVE (&sym, version, ELF32_R_TYPE (reloc->r_info));
|
||||
if (sym)
|
||||
value += sym->st_value;
|
||||
value += reloc->r_addend;
|
||||
@ -489,6 +517,7 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
|
||||
break;
|
||||
case R_SH_GLOB_DAT:
|
||||
case R_SH_JMP_SLOT:
|
||||
/* These addresses are always aligned. */
|
||||
*reloc_addr = value;
|
||||
break;
|
||||
case R_SH_DIR32:
|
||||
@ -509,17 +538,20 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
|
||||
used while loading those libraries. */
|
||||
value -= map->l_addr + refsym->st_value + reloc->r_addend;
|
||||
#endif
|
||||
*reloc_addr = value;
|
||||
COPY_UNALIGNED_WORD (value, *reloc_addr, (int) reloc_addr & 3);
|
||||
break;
|
||||
}
|
||||
case R_SH_REL32:
|
||||
*reloc_addr = (value - (Elf32_Addr) reloc_addr);
|
||||
value = (value - (Elf32_Addr) reloc_addr);
|
||||
COPY_UNALIGNED_WORD (value, *reloc_addr, (int) reloc_addr & 3);
|
||||
break;
|
||||
default:
|
||||
_dl_reloc_bad_type (map, ELF32_R_TYPE (reloc->r_info), 0);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
#undef COPY_UNALIGNED_WORD
|
||||
}
|
||||
|
||||
static inline void
|
||||
|
||||
Loading…
Reference in New Issue
Block a user