/* This code is used in dl-runtime.c to call the `fixup' function
and then redirect to the address it returns. */
#define TRAMPOLINE_TEMPLATE(tramp_name, fixup_name) \
- asm ("\
- .text
- .globl " #tramp_name "_0
- .type " #tramp_name "_0, @function
- .align 32
-" #tramp_name "_0:
- ! sethi %hi(1047552), %l2 - Done in .PLT0
- ldx [%l6 + 32 + 8], %o0
- sub %g1, %l6, %l0
- xor %l2, -1016, %l2
- sethi %hi(5120), %l3 ! 160 * 32
- add %l0, %l2, %l0
- sethi %hi(32768), %l4
- udivx %l0, %l3, %l3
- sllx %l3, 2, %l1
- add %l1, %l3, %l1
- sllx %l1, 10, %l2
- sub %l4, 4, %l4 ! No thanks to Sun for not obeying their own ABI
- sllx %l1, 5, %l1
- sub %l0, %l2, %l0
- udivx %l0, 24, %l0
- add %l0, %l4, %l0
- add %l1, %l0, %l1
- add %l1, %l1, %l0
- add %l0, %l1, %l0
- mov %i7, %o2
- call " #fixup_name "
- sllx %l0, 3, %o1
- jmp %o0
- restore
- .size " #tramp_name "_0, . - " #tramp_name "_0
-
- .globl " #tramp_name "_1
- .type " #tramp_name "_1, @function
- .align 32
-" #tramp_name "_1:
- ! srlx %g1, 12, %o1 - Done in .PLT1
- ldx [%l6 + 8], %o0
- add %o1, %o1, %o3
- sub %o1, 96, %o1 ! No thanks to Sun for not obeying their own ABI
- mov %i7, %o2
- call " #fixup_name "
- add %o1, %o3, %o1
- jmp %o0
- restore
- .size " #tramp_name "_1, . - " #tramp_name "_1
- .previous");
+ asm ("\n" \
+" .text\n" \
+" .globl " #tramp_name "_0\n" \
+" .type " #tramp_name "_0, @function\n" \
+" .align 32\n" \
+"\t" #tramp_name "_0:\n" \
+" ! sethi %hi(1047552), %l2 - Done in .PLT0\n" \
+" ldx [%l6 + 32 + 8], %o0\n" \
+" sub %g1, %l6, %l0\n" \
+" xor %l2, -1016, %l2\n" \
+" sethi %hi(5120), %l3 ! 160 * 32\n" \
+" add %l0, %l2, %l0\n" \
+" sethi %hi(32768), %l4\n" \
+" udivx %l0, %l3, %l3\n" \
+" sllx %l3, 2, %l1\n" \
+" add %l1, %l3, %l1\n" \
+" sllx %l1, 10, %l2\n" \
+" sub %l4, 4, %l4 ! No thanks to Sun for not obeying their own ABI\n" \
+" sllx %l1, 5, %l1\n" \
+" sub %l0, %l2, %l0\n" \
+" udivx %l0, 24, %l0\n" \
+" add %l0, %l4, %l0\n" \
+" add %l1, %l0, %l1\n" \
+" add %l1, %l1, %l0\n" \
+" add %l0, %l1, %l0\n" \
+" mov %i7, %o2\n" \
+" call " #fixup_name "\n" \
+" sllx %l0, 3, %o1\n" \
+" jmp %o0\n" \
+" restore\n" \
+" .size " #tramp_name "_0, . - " #tramp_name "_0\n" \
+"\n" \
+" .globl " #tramp_name "_1\n" \
+" .type " #tramp_name "_1, @function\n" \
+" .align 32\n" \
+"\t" #tramp_name "_1:\n" \
+" ! srlx %g1, 12, %o1 - Done in .PLT1\n" \
+" ldx [%l6 + 8], %o0\n" \
+" add %o1, %o1, %o3\n" \
+" sub %o1, 96, %o1 ! No thanks to Sun for not obeying their own ABI\n" \
+" mov %i7, %o2\n" \
+" call " #fixup_name "\n" \
+" add %o1, %o3, %o1\n" \
+" jmp %o0\n" \
+" restore\n" \
+" .size " #tramp_name "_1, . - " #tramp_name "_1\n" \
+" .previous\n");
#ifndef PROF
#define ELF_MACHINE_RUNTIME_TRAMPOLINE \
#define __S1(x) #x
#define __S(x) __S1(x)
-#define RTLD_START __asm__ ( "\
- .text
- .global _start
- .type _start, @function
- .align 32
-_start:
- /* Make room for functions to drop their arguments on the stack. */
- sub %sp, 6*8, %sp
- /* Pass pointer to argument block to _dl_start. */
- call _dl_start
- add %sp," __S(STACK_BIAS) "+22*8,%o0
- /* FALLTHRU */
- .size _start, .-_start
-
- .global _dl_start_user
- .type _dl_start_user, @function
-_dl_start_user:
- /* Load the GOT register. */
-1: call 11f
- sethi %hi(_GLOBAL_OFFSET_TABLE_-(1b-.)), %l7
-11: or %l7, %lo(_GLOBAL_OFFSET_TABLE_-(1b-.)), %l7
- /* Store the highest stack address. */
- sethi %hi(__libc_stack_end), %g5
- add %l7, %o7, %l7
- or %g5, %lo(__libc_stack_end), %g5
- /* Save the user entry point address in %l0. */
- mov %o0, %l0
- ldx [%l7 + %g5], %l1
- sethi %hi(_dl_skip_args), %g5
- add %sp, 6*8, %l2
- /* See if we were run as a command with the executable file name as an
- extra leading argument. If so, we must shift things around since we
- must keep the stack doubleword aligned. */
- or %g5, %lo(_dl_skip_args), %g5
- stx %l2, [%l1]
- ldx [%l7 + %g5], %i0
- ld [%i0], %i0
- brz,pt %i0, 2f
- ldx [%sp + " __S(STACK_BIAS) " + 22*8], %i5
- /* Find out how far to shift. */
- sethi %hi(_dl_argv), %l4
- sub %i5, %i0, %i5
- or %l4, %lo(_dl_argv), %l4
- sllx %i0, 3, %l6
- ldx [%l7 + %l4], %l4
- stx %i5, [%sp + " __S(STACK_BIAS) " + 22*8]
- add %sp, " __S(STACK_BIAS) " + 23*8, %i1
- add %i1, %l6, %i2
- ldx [%l4], %l5
- /* Copy down argv. */
-12: ldx [%i2], %i3
- add %i2, 8, %i2
- stx %i3, [%i1]
- brnz,pt %i3, 12b
- add %i1, 8, %i1
- sub %l5, %l6, %l5
- /* Copy down envp. */
-13: ldx [%i2], %i3
- add %i2, 8, %i2
- stx %i3, [%i1]
- brnz,pt %i3, 13b
- add %i1, 8, %i1
- /* Copy down auxiliary table. */
-14: ldx [%i2], %i3
- ldx [%i2 + 8], %i4
- add %i2, 16, %i2
- stx %i3, [%i1]
- stx %i4, [%i1 + 8]
- brnz,pt %i3, 14b
- add %i1, 16, %i1
- stx %l5, [%l4]
- /* %o0 = _dl_loaded, %o1 = argc, %o2 = argv, %o3 = envp. */
-2: sethi %hi(_dl_loaded), %o0
- add %sp, " __S(STACK_BIAS) " + 23*8, %o2
- orcc %o0, %lo(_dl_loaded), %o0
- sllx %i5, 3, %o3
- ldx [%l7 + %o0], %o0
- add %o3, 8, %o3
- mov %i5, %o1
- add %o2, %o3, %o3
- call _dl_init
- ldx [%o0], %o0
- /* Pass our finalizer function to the user in %g1. */
- sethi %hi(_dl_fini), %g1
- or %g1, %lo(_dl_fini), %g1
- ldx [%l7 + %g1], %g1
- /* Jump to the user's entry point and deallocate the extra stack we got. */
- jmp %l0
- add %sp, 6*8, %sp
- .size _dl_start_user, . - _dl_start_user
- .previous");
+#define RTLD_START __asm__ ( "\n" \
+" .text\n" \
+" .global _start\n" \
+" .type _start, @function\n" \
+" .align 32\n" \
+"_start:\n" \
+" /* Make room for functions to drop their arguments on the stack. */\n" \
+" sub %sp, 6*8, %sp\n" \
+" /* Pass pointer to argument block to _dl_start. */\n" \
+" call _dl_start\n" \
+" add %sp," __S(STACK_BIAS) "+22*8,%o0\n" \
+" /* FALLTHRU */\n" \
+" .size _start, .-_start\n" \
+"\n" \
+" .global _dl_start_user\n" \
+" .type _dl_start_user, @function\n" \
+"_dl_start_user:\n" \
+" /* Load the GOT register. */\n" \
+"1: call 11f\n" \
+" sethi %hi(_GLOBAL_OFFSET_TABLE_-(1b-.)), %l7\n" \
+"11: or %l7, %lo(_GLOBAL_OFFSET_TABLE_-(1b-.)), %l7\n" \
+" /* Store the highest stack address. */\n" \
+" sethi %hi(__libc_stack_end), %g5\n" \
+" add %l7, %o7, %l7\n" \
+" or %g5, %lo(__libc_stack_end), %g5\n" \
+" /* Save the user entry point address in %l0. */\n" \
+" mov %o0, %l0\n" \
+" ldx [%l7 + %g5], %l1\n" \
+" sethi %hi(_dl_skip_args), %g5\n" \
+" add %sp, 6*8, %l2\n" \
+" /* See if we were run as a command with the executable file name as an\n" \
+" extra leading argument. If so, we must shift things around since we\n" \
+" must keep the stack doubleword aligned. */\n" \
+" or %g5, %lo(_dl_skip_args), %g5\n" \
+" stx %l2, [%l1]\n" \
+" ldx [%l7 + %g5], %i0\n" \
+" ld [%i0], %i0\n" \
+" brz,pt %i0, 2f\n" \
+" ldx [%sp + " __S(STACK_BIAS) " + 22*8], %i5\n" \
+" /* Find out how far to shift. */\n" \
+" sethi %hi(_dl_argv), %l4\n" \
+" sub %i5, %i0, %i5\n" \
+" or %l4, %lo(_dl_argv), %l4\n" \
+" sllx %i0, 3, %l6\n" \
+" ldx [%l7 + %l4], %l4\n" \
+" stx %i5, [%sp + " __S(STACK_BIAS) " + 22*8]\n" \
+" add %sp, " __S(STACK_BIAS) " + 23*8, %i1\n" \
+" add %i1, %l6, %i2\n" \
+" ldx [%l4], %l5\n" \
+" /* Copy down argv. */\n" \
+"12: ldx [%i2], %i3\n" \
+" add %i2, 8, %i2\n" \
+" stx %i3, [%i1]\n" \
+" brnz,pt %i3, 12b\n" \
+" add %i1, 8, %i1\n" \
+" sub %l5, %l6, %l5\n" \
+" /* Copy down envp. */\n" \
+"13: ldx [%i2], %i3\n" \
+" add %i2, 8, %i2\n" \
+" stx %i3, [%i1]\n" \
+" brnz,pt %i3, 13b\n" \
+" add %i1, 8, %i1\n" \
+" /* Copy down auxiliary table. */\n" \
+"14: ldx [%i2], %i3\n" \
+" ldx [%i2 + 8], %i4\n" \
+" add %i2, 16, %i2\n" \
+" stx %i3, [%i1]\n" \
+" stx %i4, [%i1 + 8]\n" \
+" brnz,pt %i3, 14b\n" \
+" add %i1, 16, %i1\n" \
+" stx %l5, [%l4]\n" \
+" /* %o0 = _dl_loaded, %o1 = argc, %o2 = argv, %o3 = envp. */\n" \
+"2: sethi %hi(_dl_loaded), %o0\n" \
+" add %sp, " __S(STACK_BIAS) " + 23*8, %o2\n" \
+" orcc %o0, %lo(_dl_loaded), %o0\n" \
+" sllx %i5, 3, %o3\n" \
+" ldx [%l7 + %o0], %o0\n" \
+" add %o3, 8, %o3\n" \
+" mov %i5, %o1\n" \
+" add %o2, %o3, %o3\n" \
+" call _dl_init\n" \
+" ldx [%o0], %o0\n" \
+" /* Pass our finalizer function to the user in %g1. */\n" \
+" sethi %hi(_dl_fini), %g1\n" \
+" or %g1, %lo(_dl_fini), %g1\n" \
+" ldx [%l7 + %g1], %g1\n" \
+" /* Jump to the user's entry point and deallocate the extra stack we got. */\n" \
+" jmp %l0\n" \
+" add %sp, 6*8, %sp\n" \
+" .size _dl_start_user, . - _dl_start_user\n" \
+" .previous\n");
git://sourceware.org / glibc.git / commitdiff