From dfe4c900cb1d03533702c453c3a9abe6d41e545d Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Thu, 7 Nov 2002 22:28:16 +0000 Subject: * sysdeps/ia64/elf/initfini.c [HAVE_INITFINI_ARRAY] (gmon_initializer): New function. (.init prologue): If HAVE_INITFINI_ARRAY is true, don't call __gmon_start__ here. Call it from gmon_initializer() instead. 2002-03-12 H.J. Lu * elf/Makefile [$(have-initfini-array) = yes] (tests): Add tst-array1, tst-array2, and tst-array3. [$(have-initfini-array) = yes] (tests-static): Add tst-array3. [$(have-initfini-array) = yes] (modules-names): Add tst-array2dep. ($(objpfx)tst-array1.out): New target. ($(objpfx)tst-array2): Likewise. ($(objpfx)tst-array2.out): Likewise. ($(objpfx)tst-array3.out): Likewise. * elf/tst-array1.c: New file. * elf/tst-array1.exp: Likewise. * elf/tst-array2.c: Likewise. * elf/tst-array2dep.c: Likewise. * elf/tst-array2.exp: Likewise. * elf/tst-array3.c: Likewise. --- sysdeps/ia64/elf/initfini.c | 185 +++++++++++++++++++++++++------------------- 1 file changed, 107 insertions(+), 78 deletions(-) (limited to 'sysdeps/ia64') diff --git a/sysdeps/ia64/elf/initfini.c b/sysdeps/ia64/elf/initfini.c index 2e3234a2aa..5315abfee1 100644 --- a/sysdeps/ia64/elf/initfini.c +++ b/sysdeps/ia64/elf/initfini.c @@ -27,81 +27,110 @@ * crtn.s puts the corresponding function epilogues in the .init and .fini sections. */ -__asm__ ("\n\ -\n\ -#include \"defs.h\"\n\ -\n\ -/*@HEADER_ENDS*/\n\ -\n\ -/*@_init_PROLOG_BEGINS*/\n\ - .section .init\n\ - .align 16\n\ - .global _init#\n\ - .proc _init#\n\ -_init:\n\ - alloc r34 = ar.pfs, 0, 3, 0, 0\n\ - mov r32 = r12\n\ - mov r33 = b0\n\ - adds r12 = -16, r12\n\ - addl r14 = @ltoff(@fptr(__gmon_start__#)), gp\n\ - ;;\n\ - ld8 r15 = [r14]\n\ - ;;\n\ - cmp.eq p6, p7 = 0, r15\n\ - (p6) br.cond.dptk .L5\n\ -\n\ -/* we could use r35 to save gp, but we use the stack since that's what\n\ - * all the other init routines will do --davidm 00/04/05 */\n\ - st8 [r12] = gp, -16\n\ - br.call.sptk.many b0 = __gmon_start__# ;;\n\ - adds r12 = 16, r12\n\ - ;;\n\ - ld8 gp = [r12]\n\ - ;;\n\ -.L5:\n\ - .align 16\n\ - .endp _init#\n\ -\n\ -/*@_init_PROLOG_ENDS*/\n\ -\n\ -/*@_init_EPILOG_BEGINS*/\n\ - .section .init\n\ - .regstk 0,2,0,0\n\ - mov r12 = r32\n\ - mov ar.pfs = r34\n\ - mov b0 = r33\n\ - br.ret.sptk.many b0\n\ - .endp _init#\n\ -/*@_init_EPILOG_ENDS*/\n\ -\n\ -/*@_fini_PROLOG_BEGINS*/\n\ - .section .fini\n\ - .align 16\n\ - .global _fini#\n\ - .proc _fini#\n\ -_fini:\n\ - alloc r34 = ar.pfs, 0, 3, 0, 0\n\ - mov r32 = r12\n\ - mov r33 = b0\n\ - adds r12 = -16, r12\n\ - ;;\n\ - .align 16\n\ - .endp _fini#\n\ -\n\ -/*@_fini_PROLOG_ENDS*/\n\ - br.call.sptk.many b0 = i_am_not_a_leaf# ;;\n\ - ;;\n\ -\n\ -/*@_fini_EPILOG_BEGINS*/\n\ - .section .fini\n\ - mov r12 = r32\n\ - mov ar.pfs = r34\n\ - mov b0 = r33\n\ - br.ret.sptk.many b0\n\ - .endp _fini#\n\ -\n\ -/*@_fini_EPILOG_ENDS*/\n\ -\n\ -/*@TRAILER_BEGINS*/\n\ - .weak __gmon_start__#\n\ -"); +__asm__ ("\n\n" +"#include \"defs.h\"\n" +"\n" +"/*@HEADER_ENDS*/\n" +"\n" +"/*@_init_PROLOG_BEGINS*/\n"); + +#ifdef HAVE_INITFINI_ARRAY + +/* If we have working .init_array support, we want to keep the .init + section empty (apart from the mandatory prologue/epilogue. This + ensures that the default unwind conventions (return-pointer in b0, + frame state in ar.pfs, etc.) will do the Right Thing. To ensure + an empty .init section, we register gmon_initializer() via the + .init_array. + + --davidm 02/10/29 */ + +static void +gmon_initializer (void) +{ + extern void weak_function __gmon_start__ (void); + + if (__gmon_start__) + (*__gmon_start__)(); +} + +__asm__ (".section .init_array, \"aw\"\n" + "\tdata8 @fptr(gmon_initializer)\n"); + +#endif + +__asm__ (".section .init\n" +" .align 16\n" +" .global _init#\n" +" .proc _init#\n" +"_init:\n" +" alloc r34 = ar.pfs, 0, 3, 0, 0\n" +" mov r32 = r12\n" +" mov r33 = b0\n" +" adds r12 = -16, r12\n" +#ifdef HAVE_INITFINI_ARRAY + " ;;\n" /* see gmon_initializer() below */ +#else +" .weak __gmon_start__#\n" +" addl r14 = @ltoff(@fptr(__gmon_start__#)), gp\n" +" ;;\n" +" ld8 r15 = [r14]\n" +" ;;\n" +" cmp.eq p6, p7 = 0, r15\n" +" (p6) br.cond.dptk .L5\n" +"\n" +"/* we could use r35 to save gp, but we use the stack since that's what\n" +" * all the other init routines will do --davidm 00/04/05 */\n" +" st8 [r12] = gp, -16\n" +" br.call.sptk.many b0 = __gmon_start__# ;;\n" +" adds r12 = 16, r12\n" +" ;;\n" +" ld8 gp = [r12]\n" +" ;;\n" +".L5:\n" +#endif +" .align 16\n" +" .endp _init#\n" +"\n" +"/*@_init_PROLOG_ENDS*/\n" +"\n" +"/*@_init_EPILOG_BEGINS*/\n" +" .section .init\n" +" .regstk 0,2,0,0\n" +" mov r12 = r32\n" +" mov ar.pfs = r34\n" +" mov b0 = r33\n" +" br.ret.sptk.many b0\n" +" .endp _init#\n" +"/*@_init_EPILOG_ENDS*/\n" +"\n" +"/*@_fini_PROLOG_BEGINS*/\n" +" .section .fini\n" +" .align 16\n" +" .global _fini#\n" +" .proc _fini#\n" +"_fini:\n" +" alloc r34 = ar.pfs, 0, 3, 0, 0\n" +" mov r32 = r12\n" +" mov r33 = b0\n" +" adds r12 = -16, r12\n" +" ;;\n" +" .align 16\n" +" .endp _fini#\n" +"\n" +"/*@_fini_PROLOG_ENDS*/\n" +" br.call.sptk.many b0 = i_am_not_a_leaf# ;;\n" +" ;;\n" +"\n" +"/*@_fini_EPILOG_BEGINS*/\n" +" .section .fini\n" +" mov r12 = r32\n" +" mov ar.pfs = r34\n" +" mov b0 = r33\n" +" br.ret.sptk.many b0\n" +" .endp _fini#\n" +"\n" +"/*@_fini_EPILOG_ENDS*/\n" +"\n" +"/*@TRAILER_BEGINS*/\n" +); -- cgit v1.2.3