diff options
Diffstat (limited to 'sysdeps/alpha/dl-machine.h')
| -rw-r--r-- | sysdeps/alpha/dl-machine.h | 402 |
1 files changed, 203 insertions, 199 deletions
diff --git a/sysdeps/alpha/dl-machine.h b/sysdeps/alpha/dl-machine.h index c93da66..7b6dcec 100644 --- a/sysdeps/alpha/dl-machine.h +++ b/sysdeps/alpha/dl-machine.h @@ -127,7 +127,8 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile) { unsigned int val = 0xc39ffff7; unsigned int *slot, *end; - const Elf64_Rela *rela = D_PTR (l, l_info[DT_JMPREL]); + const Elf64_Rela *rela = (const Elf64_Rela *) + D_PTR (l, l_info[DT_JMPREL]); Elf64_Addr l_addr = l->l_addr; /* br t12,.+4; ldq t12,12(t12); nop; jmp t12,(t12),.+4 */ @@ -156,125 +157,126 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile) #define TRAMPOLINE_TEMPLATE(tramp_name, fixup_name, IMB) \ extern void tramp_name (void); \ asm ( "\ - .globl " #tramp_name " - .ent " #tramp_name " -" #tramp_name ": - lda $sp, -44*8($sp) - .frame $sp, 44*8, $26 - /* Preserve all integer registers that C normally doesn't. */ - stq $26, 0*8($sp) - stq $0, 1*8($sp) - stq $1, 2*8($sp) - stq $2, 3*8($sp) - stq $3, 4*8($sp) - stq $4, 5*8($sp) - stq $5, 6*8($sp) - stq $6, 7*8($sp) - stq $7, 8*8($sp) - stq $8, 9*8($sp) - stq $16, 10*8($sp) - stq $17, 11*8($sp) - stq $18, 12*8($sp) - stq $19, 13*8($sp) - stq $20, 14*8($sp) - stq $21, 15*8($sp) - stq $22, 16*8($sp) - stq $23, 17*8($sp) - stq $24, 18*8($sp) - stq $25, 19*8($sp) - stq $29, 20*8($sp) - stt $f0, 21*8($sp) - stt $f1, 22*8($sp) - stt $f10, 23*8($sp) - stt $f11, 24*8($sp) - stt $f12, 25*8($sp) - stt $f13, 26*8($sp) - stt $f14, 27*8($sp) - stt $f15, 28*8($sp) - stt $f16, 29*8($sp) - stt $f17, 30*8($sp) - stt $f18, 31*8($sp) - stt $f19, 32*8($sp) - stt $f20, 33*8($sp) - stt $f21, 34*8($sp) - stt $f22, 35*8($sp) - stt $f23, 36*8($sp) - stt $f24, 37*8($sp) - stt $f25, 38*8($sp) - stt $f26, 39*8($sp) - stt $f27, 40*8($sp) - stt $f28, 41*8($sp) - stt $f29, 42*8($sp) - stt $f30, 43*8($sp) - .mask 0x27ff01ff, -44*8 - .fmask 0xfffffc03, -(44-21)*8 - /* Set up our $gp */ - br $gp, .+4 - ldgp $gp, 0($gp) - .prologue 0 - /* Set up the arguments for fixup: */ - /* $16 = link_map out of plt0 */ - /* $17 = offset of reloc entry = ($28 - $27 - 20) /12 * 24 */ - /* $18 = return address */ - subq $28, $27, $17 - ldq $16, 8($27) - subq $17, 20, $17 - mov $26, $18 - addq $17, $17, $17 - /* Do the fixup */ - bsr $26, " ASM_ALPHA_NG_SYMBOL_PREFIX #fixup_name "..ng - /* Move the destination address into position. */ - mov $0, $27 - /* Restore program registers. */ - ldq $26, 0*8($sp) - ldq $0, 1*8($sp) - ldq $1, 2*8($sp) - ldq $2, 3*8($sp) - ldq $3, 4*8($sp) - ldq $4, 5*8($sp) - ldq $5, 6*8($sp) - ldq $6, 7*8($sp) - ldq $7, 8*8($sp) - ldq $8, 9*8($sp) - ldq $16, 10*8($sp) - ldq $17, 11*8($sp) - ldq $18, 12*8($sp) - ldq $19, 13*8($sp) - ldq $20, 14*8($sp) - ldq $21, 15*8($sp) - ldq $22, 16*8($sp) - ldq $23, 17*8($sp) - ldq $24, 18*8($sp) - ldq $25, 19*8($sp) - ldq $29, 20*8($sp) - ldt $f0, 21*8($sp) - ldt $f1, 22*8($sp) - ldt $f10, 23*8($sp) - ldt $f11, 24*8($sp) - ldt $f12, 25*8($sp) - ldt $f13, 26*8($sp) - ldt $f14, 27*8($sp) - ldt $f15, 28*8($sp) - ldt $f16, 29*8($sp) - ldt $f17, 30*8($sp) - ldt $f18, 31*8($sp) - ldt $f19, 32*8($sp) - ldt $f20, 33*8($sp) - ldt $f21, 34*8($sp) - ldt $f22, 35*8($sp) - ldt $f23, 36*8($sp) - ldt $f24, 37*8($sp) - ldt $f25, 38*8($sp) - ldt $f26, 39*8($sp) - ldt $f27, 40*8($sp) - ldt $f28, 41*8($sp) - ldt $f29, 42*8($sp) - ldt $f30, 43*8($sp) - /* Flush the Icache after having modified the .plt code. */ - " #IMB " - /* Clean up and turn control to the destination */ - lda $sp, 44*8($sp) - jmp $31, ($27) + .globl " #tramp_name " \n\ + .ent " #tramp_name " \n\ +" #tramp_name ": \n\ + lda $sp, -44*8($sp) \n\ + .frame $sp, 44*8, $26 \n\ + /* Preserve all integer registers that C normally \n\ + doesn't. */ \n\ + stq $26, 0*8($sp) \n\ + stq $0, 1*8($sp) \n\ + stq $1, 2*8($sp) \n\ + stq $2, 3*8($sp) \n\ + stq $3, 4*8($sp) \n\ + stq $4, 5*8($sp) \n\ + stq $5, 6*8($sp) \n\ + stq $6, 7*8($sp) \n\ + stq $7, 8*8($sp) \n\ + stq $8, 9*8($sp) \n\ + stq $16, 10*8($sp) \n\ + stq $17, 11*8($sp) \n\ + stq $18, 12*8($sp) \n\ + stq $19, 13*8($sp) \n\ + stq $20, 14*8($sp) \n\ + stq $21, 15*8($sp) \n\ + stq $22, 16*8($sp) \n\ + stq $23, 17*8($sp) \n\ + stq $24, 18*8($sp) \n\ + stq $25, 19*8($sp) \n\ + stq $29, 20*8($sp) \n\ + stt $f0, 21*8($sp) \n\ + stt $f1, 22*8($sp) \n\ + stt $f10, 23*8($sp) \n\ + stt $f11, 24*8($sp) \n\ + stt $f12, 25*8($sp) \n\ + stt $f13, 26*8($sp) \n\ + stt $f14, 27*8($sp) \n\ + stt $f15, 28*8($sp) \n\ + stt $f16, 29*8($sp) \n\ + stt $f17, 30*8($sp) \n\ + stt $f18, 31*8($sp) \n\ + stt $f19, 32*8($sp) \n\ + stt $f20, 33*8($sp) \n\ + stt $f21, 34*8($sp) \n\ + stt $f22, 35*8($sp) \n\ + stt $f23, 36*8($sp) \n\ + stt $f24, 37*8($sp) \n\ + stt $f25, 38*8($sp) \n\ + stt $f26, 39*8($sp) \n\ + stt $f27, 40*8($sp) \n\ + stt $f28, 41*8($sp) \n\ + stt $f29, 42*8($sp) \n\ + stt $f30, 43*8($sp) \n\ + .mask 0x27ff01ff, -44*8 \n\ + .fmask 0xfffffc03, -(44-21)*8 \n\ + /* Set up our $gp */ \n\ + br $gp, .+4 \n\ + ldgp $gp, 0($gp) \n\ + .prologue 0 \n\ + /* Set up the arguments for fixup: */ \n\ + /* $16 = link_map out of plt0 */ \n\ + /* $17 = offset of reloc entry = ($28 - $27 - 20) /12 * 24 */\n\ + /* $18 = return address */ \n\ + subq $28, $27, $17 \n\ + ldq $16, 8($27) \n\ + subq $17, 20, $17 \n\ + mov $26, $18 \n\ + addq $17, $17, $17 \n\ + /* Do the fixup */ \n\ + bsr $26, " ASM_ALPHA_NG_SYMBOL_PREFIX #fixup_name "..ng\n\ + /* Move the destination address into position. */ \n\ + mov $0, $27 \n\ + /* Restore program registers. */ \n\ + ldq $26, 0*8($sp) \n\ + ldq $0, 1*8($sp) \n\ + ldq $1, 2*8($sp) \n\ + ldq $2, 3*8($sp) \n\ + ldq $3, 4*8($sp) \n\ + ldq $4, 5*8($sp) \n\ + ldq $5, 6*8($sp) \n\ + ldq $6, 7*8($sp) \n\ + ldq $7, 8*8($sp) \n\ + ldq $8, 9*8($sp) \n\ + ldq $16, 10*8($sp) \n\ + ldq $17, 11*8($sp) \n\ + ldq $18, 12*8($sp) \n\ + ldq $19, 13*8($sp) \n\ + ldq $20, 14*8($sp) \n\ + ldq $21, 15*8($sp) \n\ + ldq $22, 16*8($sp) \n\ + ldq $23, 17*8($sp) \n\ + ldq $24, 18*8($sp) \n\ + ldq $25, 19*8($sp) \n\ + ldq $29, 20*8($sp) \n\ + ldt $f0, 21*8($sp) \n\ + ldt $f1, 22*8($sp) \n\ + ldt $f10, 23*8($sp) \n\ + ldt $f11, 24*8($sp) \n\ + ldt $f12, 25*8($sp) \n\ + ldt $f13, 26*8($sp) \n\ + ldt $f14, 27*8($sp) \n\ + ldt $f15, 28*8($sp) \n\ + ldt $f16, 29*8($sp) \n\ + ldt $f17, 30*8($sp) \n\ + ldt $f18, 31*8($sp) \n\ + ldt $f19, 32*8($sp) \n\ + ldt $f20, 33*8($sp) \n\ + ldt $f21, 34*8($sp) \n\ + ldt $f22, 35*8($sp) \n\ + ldt $f23, 36*8($sp) \n\ + ldt $f24, 37*8($sp) \n\ + ldt $f25, 38*8($sp) \n\ + ldt $f26, 39*8($sp) \n\ + ldt $f27, 40*8($sp) \n\ + ldt $f28, 41*8($sp) \n\ + ldt $f29, 42*8($sp) \n\ + ldt $f30, 43*8($sp) \n\ + /* Flush the Icache after having modified the .plt code. */\n\ + " #IMB " \n\ + /* Clean up and turn control to the destination */ \n\ + lda $sp, 44*8($sp) \n\ + jmp $31, ($27) \n\ .end " #tramp_name) #ifndef PROF @@ -292,85 +294,87 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile) its return value is the user program's entry point. */ #define RTLD_START asm ("\ -.text - .set at - .globl _start - .ent _start -_start: - br $gp, 0f -0: ldgp $gp, 0($gp) - .prologue 0 - /* Pass pointer to argument block to _dl_start. */ - mov $sp, $16 - bsr $26, "ASM_ALPHA_NG_SYMBOL_PREFIX"_dl_start..ng - .end _start - /* FALLTHRU */ - .globl _dl_start_user - .ent _dl_start_user -_dl_start_user: - .frame $30,0,$31,0 - .prologue 0 - /* Save the user entry point address in s0. */ - mov $0, $9 - /* Store the highest stack address. */ - stq $30, __libc_stack_end - /* See if we were run as a command with the executable file - name as an extra leading argument. */ - ldl $1, _dl_skip_args - bne $1, $fixup_stack -$fixup_stack_ret: - /* The special initializer gets called with the stack just - as the application's entry point will see it; it can - switch stacks if it moves these contents over. */ -" RTLD_START_SPECIAL_INIT " - /* Call _dl_init(_dl_loaded, argc, argv, envp) to run initializers. */ - ldq $16, _dl_loaded - ldq $17, 0($sp) - lda $18, 8($sp) - s8addq $17, 8, $19 - addq $19, $18, $19 - jsr $26, _dl_init - /* Pass our finalizer function to the user in $0. */ - lda $0, _dl_fini - /* Jump to the user's entry point. */ - mov $9, $27 - jmp ($9) -$fixup_stack: - /* Adjust the stack pointer to skip _dl_skip_args words. This - involves copying everything down, since the stack pointer must - always be 16-byte aligned. */ - ldq $2, 0($sp) - ldq $5, _dl_argv - subq $31, $1, $6 - subq $2, $1, $2 - s8addq $6, $5, $5 - mov $sp, $4 - s8addq $1, $sp, $3 - stq $2, 0($sp) - stq $5, _dl_argv - /* Copy down argv. */ -0: ldq $5, 8($3) - addq $4, 8, $4 - addq $3, 8, $3 - stq $5, 0($4) - bne $5, 0b - /* Copy down envp. */ -1: ldq $5, 8($3) - addq $4, 8, $4 - addq $3, 8, $3 - stq $5, 0($4) - bne $5, 1b - /* Copy down auxiliary table. */ -2: ldq $5, 8($3) - ldq $6, 16($3) - addq $4, 16, $4 - addq $3, 16, $3 - stq $5, -8($4) - stq $6, 0($4) - bne $5, 2b - br $fixup_stack_ret - .end _dl_start_user - .set noat +.text \n\ + .set at \n\ + .globl _start \n\ + .ent _start \n\ +_start: \n\ + br $gp, 0f \n\ +0: ldgp $gp, 0($gp) \n\ + .prologue 0 \n\ + /* Pass pointer to argument block to _dl_start. */ \n\ + mov $sp, $16 \n\ + bsr $26, "ASM_ALPHA_NG_SYMBOL_PREFIX"_dl_start..ng \n\ + .end _start \n\ + /* FALLTHRU */ \n\ + .globl _dl_start_user \n\ + .ent _dl_start_user \n\ +_dl_start_user: \n\ + .frame $30,0,$31,0 \n\ + .prologue 0 \n\ + /* Save the user entry point address in s0. */ \n\ + mov $0, $9 \n\ + /* Store the highest stack address. */ \n\ + stq $30, __libc_stack_end \n\ + /* See if we were run as a command with the executable \n\ + file name as an extra leading argument. */ \n\ + ldl $1, _dl_skip_args \n\ + bne $1, $fixup_stack \n\ +$fixup_stack_ret: \n\ + /* The special initializer gets called with the stack \n\ + just as the application's entry point will see it; \n\ + it can switch stacks if it moves these contents \n\ + over. */ \n\ +" RTLD_START_SPECIAL_INIT " \n\ + /* Call _dl_init(_dl_loaded, argc, argv, envp) to run \n\ + initializers. */ \n\ + ldq $16, _dl_loaded \n\ + ldq $17, 0($sp) \n\ + lda $18, 8($sp) \n\ + s8addq $17, 8, $19 \n\ + addq $19, $18, $19 \n\ + jsr $26, _dl_init \n\ + /* Pass our finalizer function to the user in $0. */ \n\ + lda $0, _dl_fini \n\ + /* Jump to the user's entry point. */ \n\ + mov $9, $27 \n\ + jmp ($9) \n\ +$fixup_stack: \n\ + /* Adjust the stack pointer to skip _dl_skip_args words.\n\ + This involves copying everything down, since the \n\ + stack pointer must always be 16-byte aligned. */ \n\ + ldq $2, 0($sp) \n\ + ldq $5, _dl_argv \n\ + subq $31, $1, $6 \n\ + subq $2, $1, $2 \n\ + s8addq $6, $5, $5 \n\ + mov $sp, $4 \n\ + s8addq $1, $sp, $3 \n\ + stq $2, 0($sp) \n\ + stq $5, _dl_argv \n\ + /* Copy down argv. */ \n\ +0: ldq $5, 8($3) \n\ + addq $4, 8, $4 \n\ + addq $3, 8, $3 \n\ + stq $5, 0($4) \n\ + bne $5, 0b \n\ + /* Copy down envp. */ \n\ +1: ldq $5, 8($3) \n\ + addq $4, 8, $4 \n\ + addq $3, 8, $3 \n\ + stq $5, 0($4) \n\ + bne $5, 1b \n\ + /* Copy down auxiliary table. */ \n\ +2: ldq $5, 8($3) \n\ + ldq $6, 16($3) \n\ + addq $4, 16, $4 \n\ + addq $3, 16, $3 \n\ + stq $5, -8($4) \n\ + stq $6, 0($4) \n\ + bne $5, 2b \n\ + br $fixup_stack_ret \n\ + .end _dl_start_user \n\ + .set noat \n\ .previous"); #ifndef RTLD_START_SPECIAL_INIT |