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Update from main archive 960811

This commit is contained in:
Ulrich Drepper 1996-08-12 02:04:57 +00:00
parent dca26bcb0c
commit f526ac60c5
2 changed files with 15 additions and 17 deletions
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4
sysdeps/alpha/divrem.h
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@ -29,8 +29,8 @@ division. The C compiler expects the functions
These are not normal C functions: instead of the normal calling These are not normal C functions: instead of the normal calling
sequence, these expect their arguments in registers t10 and t11, and sequence, these expect their arguments in registers t10 and t11, and
return the result in t12 (aka pv). Registers AT and v0 may be return the result in t12 (aka pv). Register AT may be clobbered
clobbered (assembly temporary), anything else must be saved. */ (assembly temporary), anything else must be saved. */
#include <sysdep.h> #include <sysdep.h>

28
sysdeps/alpha/dl-machine.h
View File

@ -135,8 +135,8 @@ _dl_runtime_resolve:
stq $29, 160($sp) stq $29, 160($sp)
.mask 0x27ff01ff, -168 .mask 0x27ff01ff, -168
/* Set up our $gp */ /* Set up our $gp */
br $gp, .+4 br $gp, 0f
ldgp $gp, 0($gp) 0: ldgp $gp, 0($gp)
.prologue 1 .prologue 1
/* Set up the arguments for _dl_runtime_resolve. */ /* Set up the arguments for _dl_runtime_resolve. */
/* $16 = link_map out of plt0 */ /* $16 = link_map out of plt0 */
@ -145,7 +145,7 @@ _dl_runtime_resolve:
mov $28, $17 mov $28, $17
/* Do the fixup */ /* Do the fixup */
bsr $26, fixup..ng bsr $26, fixup..ng
/* Move the destination address to a safe place. */ /* Move the destination address into position. */
mov $0, $27 mov $0, $27
/* Restore program registers. */ /* Restore program registers. */
ldq $26, 0($sp) ldq $26, 0($sp)
@ -169,19 +169,16 @@ _dl_runtime_resolve:
ldq $24, 144($sp) ldq $24, 144($sp)
ldq $25, 152($sp) ldq $25, 152($sp)
ldq $29, 160($sp) ldq $29, 160($sp)
/* Flush the Icache after having modified the .plt code. */
imb
/* Clean up and turn control to the destination */ /* Clean up and turn control to the destination */
lda $sp, 168($sp) lda $sp, 168($sp)
jmp $31, ($27) jmp $31, ($27)
.end _dl_runtime_resolve"); .end _dl_runtime_resolve");
/* The PLT uses Elf_Rel relocs. */ /* The PLT uses Elf64_Rela relocs. */
#define elf_machine_relplt elf_machine_rela #define elf_machine_relplt elf_machine_rela
/* Mask identifying addresses reserved for the user program,
where the dynamic linker should not map anything. */
/* FIXME */
#define ELF_MACHINE_USER_ADDRESS_MASK (~0x1FFFFFFFFUL)
/* Initial entry point code for the dynamic linker. /* Initial entry point code for the dynamic linker.
The C function `_dl_start' is the real entry point; The C function `_dl_start' is the real entry point;
its return value is the user program's entry point. */ its return value is the user program's entry point. */
@ -191,8 +188,8 @@ _dl_runtime_resolve:
.globl _start .globl _start
.globl _dl_start_user .globl _dl_start_user
_start: _start:
br $gp,.+4 br $gp,0f
ldgp $gp, 0($gp) 0: ldgp $gp, 0($gp)
/* Pass pointer to argument block to _dl_start. */ /* Pass pointer to argument block to _dl_start. */
mov $sp, $16 mov $sp, $16
bsr $26, _dl_start..ng bsr $26, _dl_start..ng
@ -226,7 +223,7 @@ _dl_start_user:
mov $9, $27 mov $9, $27
jmp ($9)"); jmp ($9)");
/* Nonzero iff TYPE describes relocation of a PLT entry, so /* Nonzero iff TYPE describes relocation of a PLT entry, so
PLT entries should not be allowed to define the value. */ PLT entries should not be allowed to define the value. */
#define elf_machine_pltrel_p(type) ((type) == R_ALPHA_JMP_SLOT) #define elf_machine_pltrel_p(type) ((type) == R_ALPHA_JMP_SLOT)
@ -302,9 +299,10 @@ elf_alpha_fix_plt(struct link_map *l,
plte[2] = 0x6bfb0000; plte[2] = 0x6bfb0000;
} }
/* Flush the instruction cache now that we've diddled. Tag it as /* At this point, if we've been doing runtime resolution, Icache is dirty.
modifying memory to checkpoint memory writes during optimization. */ This will be taken care of in _dl_runtime_resolve. If instead we are
asm volatile("call_pal 0x86" : : : "memory"); doing this as part of non-lazy startup relocation, that bit of code
hasn't made it into Icache yet, so there's nothing to clean up. */
} }
/* Perform the relocation specified by RELOC and SYM (which is fully resolved). /* Perform the relocation specified by RELOC and SYM (which is fully resolved).