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Hi A stack of patches from David Mosberger and myself cleaning up a number of ia64 specific files. Jes 2001-03-23 Jes Sorensen <jes@linuxcare.com> * sysdeps/unix/sysv/linux/ia64/sysdep.h (ENTRY): moved to ... * sysdeps/ia64/sysdep.h: ... here. * sysdeps/ia64/sysdep.h(LOCAL_ENTRY): Define. * sysdeps/ia64/sysdep.h(LOCAL_LEAF): Define. * sysdeps/ia64/_mcount.S(_mcount_ret_helper): Use LOCAL_LEAF() to declare instead of LEAF(). Suggestion from David Mosberger. 2001-03-21 David Mosberger <davidm@hpl.hp.com> * sysdeps/unix/sysv/linux/ia64/sysdep.h (CALL_MCOUNT): Add unwind directives. (PSEUDO): Drop .psr and .lsb directives. * sysdeps/unix/sysv/linux/ia64/setjmp.S: Ditto. Add unwind directives. * sysdeps/unix/sysv/linux/ia64/sysdep.S: Ditto. * sysdeps/ia64/elf/start.S: Misc cleanup: remove .psr and .lsb directives etc. * sysdeps/unix/sysv/linux/ia64/brk.S: Ditto. * sysdeps/unix/sysv/linux/ia64/__longjmp.S: Ditto. * sysdeps/ia64/_mcount.S: Remove .psr and .lsb directives (no longer needed). Add unwind directives. * sysdeps/ia64/sysdep.h: Define ASM_UNW_PRLG_RP, ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_PSP, ASM_UNW_PRLG_PR, and ASM_UNW_PRLG_GRSAVE. diff -urN -X /home/jes/exclude-libc /home/jes/cygnus/libc-2.2-200301/sysdeps/ia64/_mcount.S libc-2.2/sysdeps/ia64/_mcount.S --- /home/jes/cygnus/libc-2.2-200301/sysdeps/ia64/_mcount.S Thu Dec 7 20:26:31 2000 +++ libc-2.2/sysdeps/ia64/_mcount.S Fri Mar 23 15:07:17 2001 @@ -48,13 +48,11 @@ #undef ret - .psr abi64 - .psr lsb - .lsb - LEAF(_mcount) - alloc loc0 = ar.pfs, 4, 4, 3, 0 - mov loc1 = rp + .prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(4) + alloc loc1 = ar.pfs, 4, 4, 3, 0 + mov loc0 = rp + .body mov loc2 = r8 // gcc uses r8 to pass pointer to return structure ;; mov loc3 = r15 // gcc uses r15 to pass the static link to nested functions @@ -67,21 +65,27 @@ .mii mov gp = in1 mov r2 = ip - mov ar.pfs = loc0 + mov ar.pfs = loc1 } ;; - adds r2 = 1f - .here, r2 - mov b7 = loc1 + adds r2 = _mcount_ret_helper - .here, r2 + mov b7 = loc0 mov rp = in2 ;; mov r8 = loc2 mov r15 = loc3 mov b6 = r2 br.ret.sptk.few b6 +END(_mcount) -1: alloc r2 = ar.pfs, 0, 0, 9, 0 +LOCAL_LEAF(_mcount_ret_helper) + .prologue + .altrp b7 + .save ar.pfs, r40 + .body + alloc r2 = ar.pfs, 0, 0, 9, 0 mov ar.pfs = r40 br b7 -END(_mcount) +END(_mcount_ret_helper) weak_alias (_mcount, mcount) diff -urN -X /home/jes/exclude-libc /home/jes/cygnus/libc-2.2-200301/sysdeps/ia64/elf/start.S libc-2.2/sysdeps/ia64/elf/start.S --- /home/jes/cygnus/libc-2.2-200301/sysdeps/ia64/elf/start.S Mon Dec 11 10:20:57 2000 +++ libc-2.2/sysdeps/ia64/elf/start.S Thu Mar 22 14:43:48 2001 @@ -1,4 +1,4 @@ -/* Copyright (C) 1999, 2000 Free Software Foundation, Inc. +/* Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc. This file is part of the GNU C Library. Written by Jes Sorensen, <Jes.Sorensen@cern.ch>, April 1999. @@ -31,14 +31,8 @@ * out6: stack_end */ - .psr abi64 - .psr lsb - .lsb - - .text - - .global _start# - .proc _start# + .global _start + .proc _start _start: { .mlx @@ -59,11 +53,11 @@ } { .mfi mov ar.fpsr = r3 - addl out0 = @ltoff(@fptr(main#)), gp + addl out0 = @ltoff(@fptr(main)), gp } { .mfi - addl out4 = @ltoff(@fptr(_fini#)), gp - addl out3 = @ltoff(@fptr(_init#)), gp + addl out4 = @ltoff(@fptr(_fini)), gp + addl out3 = @ltoff(@fptr(_init)), gp ;; } { .mmi @@ -74,14 +68,14 @@ { .mib ld8 out4 = [out4] /* pointer to `fini' function descriptor */ mov out5 = ret0 /* dynamic linker destructor */ - br.call.sptk.few rp = __libc_start_main# + br.call.sptk.few rp = __libc_start_main } { .mib mov rp = r0 br.ret.sptk.few rp /* break miserably if we ever return */ ;; } - .endp _start# + .endp _start /* Define a symbol for the first piece of initialized data. */ .data diff -urN -X /home/jes/exclude-libc /home/jes/cygnus/libc-2.2-200301/sysdeps/ia64/sysdep.h libc-2.2/sysdeps/ia64/sysdep.h --- /home/jes/cygnus/libc-2.2-200301/sysdeps/ia64/sysdep.h Mon Jul 31 23:11:48 2000 +++ libc-2.2/sysdeps/ia64/sysdep.h Fri Mar 23 15:06:25 2001 @@ -21,11 +21,39 @@ #ifdef __ASSEMBLER__ +/* Macros to help writing .prologue directives in assembly code. */ +#define ASM_UNW_PRLG_RP 0x8 +#define ASM_UNW_PRLG_PFS 0x4 +#define ASM_UNW_PRLG_PSP 0x2 +#define ASM_UNW_PRLG_PR 0x1 +#define ASM_UNW_PRLG_GRSAVE(ninputs) (32+(ninputs)) + +#define ENTRY(name) \ + .text; \ + .align 32; \ + .proc C_SYMBOL_NAME(name); \ + .global C_SYMBOL_NAME(name); \ + C_LABEL(name) \ + CALL_MCOUNT + +#define LOCAL_ENTRY(name) \ + .text; \ + .align 32; \ + .proc C_SYMBOL_NAME(name); \ + C_LABEL(name) \ + CALL_MCOUNT + #define LEAF(name) \ .text; \ .align 32; \ .proc C_SYMBOL_NAME(name); \ .global name; \ + C_LABEL(name) + +#define LOCAL_LEAF(name) \ + .text; \ + .align 32; \ + .proc C_SYMBOL_NAME(name); \ C_LABEL(name) /* Mark the end of function SYM. */ diff -urN -X /home/jes/exclude-libc /home/jes/cygnus/libc-2.2-200301/sysdeps/unix/sysv/linux/ia64/__longjmp.S libc-2.2/sysdeps/unix/sysv/linux/ia64/__longjmp.S --- /home/jes/cygnus/libc-2.2-200301/sysdeps/unix/sysv/linux/ia64/__longjmp.S Sun Mar 18 22:19:56 2001 +++ libc-2.2/sysdeps/unix/sysv/linux/ia64/__longjmp.S Thu Mar 22 14:43:54 2001 @@ -1,4 +1,4 @@ -/* Copyright (C) 1999, 2000 Free Software Foundation, Inc. +/* Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc. Contributed by David Mosberger-Tang <davidm@hpl.hp.com>. The GNU C Library is free software; you can redistribute it and/or @@ -39,16 +39,9 @@ # define pNeg p7 /* is rotate count negative? */ - .psr abi64 - .psr lsb - .lsb - /* __longjmp(__jmp_buf buf, int val) */ - .text - .align 32 - .global __longjmp - .proc __longjmp -__longjmp: + +LEAF(__longjmp) alloc r8=ar.pfs,2,1,0,0 mov r27=ar.rsc add r2=0x98,in0 // r2 <- &jmpbuf.orig_jmp_buf_addr @@ -164,5 +157,4 @@ invala // virt. -> phys. regnum mapping may change mov pr=r24,-1 ret - .endp __longjmp - +END(__longjmp) diff -urN -X /home/jes/exclude-libc /home/jes/cygnus/libc-2.2-200301/sysdeps/unix/sysv/linux/ia64/brk.S libc-2.2/sysdeps/unix/sysv/linux/ia64/brk.S --- /home/jes/cygnus/libc-2.2-200301/sysdeps/unix/sysv/linux/ia64/brk.S Fri Jun 9 20:10:09 2000 +++ libc-2.2/sysdeps/unix/sysv/linux/ia64/brk.S Thu Mar 22 14:43:58 2001 @@ -1,5 +1,5 @@ /* brk system call for Linux/ia64 - Copyright (C) 1999, 2000 Free Software Foundation, Inc. + Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc. This file is part of the GNU C Library. Written by Stephane Eranian <eranian@hpl.hp.com> and Jes Sorensen, <Jes.Sorensen@cern.ch>, April 1999. @@ -19,31 +19,26 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ +#include <sysdep.h> + #include <asm/unistd.h> #include <asm/errno.h> - .text - .psr abi64 - .psr lsb - .lsb .global __curbrk .data .align 8 __curbrk: data8 0 - .weak ___brk_addr -___brk_addr = __curbrk - .text - .align 16 - .global __brk - .proc __brk -__brk: + +weak_alias (__curbrk, ___brk_addr) + +LEAF(__brk) mov r15=__NR_brk break.i __BREAK_SYSCALL ;; cmp.ltu p6,p0=ret0,r32 /* r32 is the input register, even though we haven't allocated a frame */ - addl r9=@ltoff(__curbrk#),gp + addl r9=@ltoff(__curbrk),gp ;; ld8 r9=[r9] (p6) mov ret0=ENOMEM @@ -51,8 +46,7 @@ ;; st8 [r9]=ret0 mov ret0=0 - br.ret.sptk.few rp - .endp __brk + ret +END(__brk) - .weak brk -brk = __brk +weak_alias (__brk, brk) diff -urN -X /home/jes/exclude-libc /home/jes/cygnus/libc-2.2-200301/sysdeps/unix/sysv/linux/ia64/setjmp.S libc-2.2/sysdeps/unix/sysv/linux/ia64/setjmp.S --- /home/jes/cygnus/libc-2.2-200301/sysdeps/unix/sysv/linux/ia64/setjmp.S Wed Nov 22 14:01:28 2000 +++ libc-2.2/sysdeps/unix/sysv/linux/ia64/setjmp.S Thu Mar 22 14:44:03 2001 @@ -1,4 +1,4 @@ -/* Copyright (C) 1999, 2000 Free Software Foundation, Inc. +/* Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc. Contributed by David Mosberger-Tang <davidm@hpl.hp.com>. The GNU C Library is free software; you can redistribute it and/or @@ -19,7 +19,7 @@ The layout of the jmp_buf is as follows. This is subject to change and user-code should never depend on the particular layout of jmp_buf! - + offset: description: ------- ------------ @@ -67,34 +67,25 @@ #include <sysdep.h> #include <features.h> - .text - .psr abi64 - .psr lsb - .lsb - /* The following two entry points are the traditional entry points: */ - .global setjmp - .proc setjmp -setjmp: alloc r8=ar.pfs,2,0,0,0 +LEAF(setjmp) + alloc r8=ar.pfs,2,0,0,0 mov in1=1 br.cond.sptk.many __sigsetjmp - .endp setjmp +END(setjmp) - .global _setjmp - .proc _setjmp -_setjmp: +LEAF(_setjmp) alloc r8=ar.pfs,2,0,0,0 mov in1=0 br.cond.sptk.many __sigsetjmp - .endp _setjmp +END(_setjmp) /* __sigsetjmp(__jmp_buf buf, int savemask) */ - .align 32 - .global __sigsetjmp - .proc __sigsetjmp -__sigsetjmp: - alloc loc0=ar.pfs,2,2,2,0 + +ENTRY(__sigsetjmp) + .prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(2) + alloc loc1=ar.pfs,2,2,2,0 mov r16=ar.unat ;; mov r17=ar.fpsr @@ -114,7 +105,8 @@ ;; stf.spill.nta [r8]=f2,32 stf.spill.nta [r9]=f3,32 - mov loc1=rp + mov loc0=rp + .body ;; stf.spill.nta [r8]=f4,32 stf.spill.nta [r9]=f5,32 @@ -157,7 +149,7 @@ mov r25=ar.unat mov out0=in0 - st8.nta [r2]=loc1,16 // b0 + st8.nta [r2]=loc0,16 // b0 st8.nta [r3]=r17,16 // b1 mov out1=in1 ;; @@ -167,7 +159,7 @@ st8.nta [r2]=r20,16 // b4 st8.nta [r3]=r21,16 // b5 ;; - st8.nta [r2]=loc0,16 // ar.pfs + st8.nta [r2]=loc1,16 // ar.pfs st8.nta [r3]=r22,16 // ar.lc ;; st8.nta [r2]=r24,16 // pr @@ -178,10 +170,10 @@ br.call.dpnt.few rp=__sigjmp_save .ret0: // force a new bundle ::q mov r8=0 - mov rp=loc1 - mov ar.pfs=loc0 + mov rp=loc0 + mov ar.pfs=loc1 ret - .endp __sigsetjmp +END(__sigsetjmp) weak_extern(_setjmp) weak_extern(setjmp) diff -urN -X /home/jes/exclude-libc /home/jes/cygnus/libc-2.2-200301/sysdeps/unix/sysv/linux/ia64/sysdep.S libc-2.2/sysdeps/unix/sysv/linux/ia64/sysdep.S --- /home/jes/cygnus/libc-2.2-200301/sysdeps/unix/sysv/linux/ia64/sysdep.S Fri Sep 29 12:42:33 2000 +++ libc-2.2/sysdeps/unix/sysv/linux/ia64/sysdep.S Thu Mar 22 23:05:55 2001 @@ -1,4 +1,4 @@ -/* Copyright (C) 1999, 2000 Free Software Foundation, Inc. +/* Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc. Contributed by David Mosberger-Tang <davidm@hpl.hp.com>. The GNU C Library is free software; you can redistribute it and/or @@ -19,10 +19,6 @@ #include <sysdep.h> #include <features.h> - .psr abi64 - .psr lsb - .lsb - .global errno .common errno,4,4 .type errno, @object @@ -34,16 +30,11 @@ .global _errno _errno = errno - .text - - .align 8 - - .global __syscall_error - .proc __syscall_error -__syscall_error: +ENTRY(__syscall_error) #ifdef _LIBC_REENTRANT + .prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(0) alloc r35=ar.pfs, 0, 4, 0, 0 - mov r32=b0 + mov r32=rp mov r33=r8 mov r34=r1 ;; @@ -51,7 +42,7 @@ .Lret0: /* force new bundle */ st4 [r8]=r33 mov r1=r34 - mov b0=r32 + mov rp=r32 mov r8=-1 mov ar.pfs=r35 #else /* _LIBC_REENTRANT */ @@ -71,8 +62,7 @@ st4 [r2]=r3 #endif /* _LIBC_REENTRANT */ ret // ret is #define'd in syscall.h! - .endp __syscall_error - +END(__syscall_error) ENTRY(__ia64_syscall) mov r15=r37 /* syscall number */ diff -urN -X /home/jes/exclude-libc /home/jes/cygnus/libc-2.2-200301/sysdeps/unix/sysv/linux/ia64/sysdep.h libc-2.2/sysdeps/unix/sysv/linux/ia64/sysdep.h --- /home/jes/cygnus/libc-2.2-200301/sysdeps/unix/sysv/linux/ia64/sysdep.h Fri Sep 29 12:43:57 2000 +++ libc-2.2/sysdeps/unix/sysv/linux/ia64/sysdep.h Fri Mar 23 15:04:19 2001 @@ -36,16 +36,20 @@ #undef CALL_MCOUNT #ifdef PROF -# define CALL_MCOUNT \ - .data; \ -1: data8 0; \ - .previous; \ - alloc out0 = ar.pfs, 8, 0, 4, 0; \ - mov out1 = gp; \ - mov out2 = rp; \ - ;; \ - addl out3 = @ltoff(1b), gp; \ - br.call.sptk.many rp = _mcount \ +# define CALL_MCOUNT \ + .data; \ +1: data8 0; /* XXX fixme: use .xdata8 once labels work */ \ + .previous; \ + .prologue; \ + .save ar.pfs, r40; \ + alloc out0 = ar.pfs, 8, 0, 4, 0; \ + mov out1 = gp; \ + .save rp, out2; \ + mov out2 = rp; \ + .body; \ + ;; \ + addl out3 = @ltoff(1b), gp; \ + br.call.sptk.many rp = _mcount \ ;; #else # define CALL_MCOUNT /* Do nothing. */ @@ -72,17 +76,6 @@ cmp.eq p6,p0=-1,r10;; \ (p6) br.cond.spnt.few __syscall_error; -#define ENTRY(name) \ - .psr abi64; \ - .psr lsb; \ - .lsb; \ - .text; \ - .align 32; \ - .proc C_SYMBOL_NAME(name); \ - .global C_SYMBOL_NAME(name); \ - C_LABEL(name) \ - CALL_MCOUNT - #define DO_CALL(num) \ mov r15=num; \ break __BREAK_SYSCALL;
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