From 07154156593021837537ef9af44b05730b4dd57f Mon Sep 17 00:00:00 2001 From: Bob Wilson Date: Wed, 23 Jul 2003 19:56:30 +0000 Subject: [PATCH] crti.asm (_init, _fini): Increase frame size to 64. * config/xtensa/crti.asm (_init, _fini): Increase frame size to 64. * config/xtensa/lib1funcs.asm (__mulsi3, __udivsi3, __divsi3, __umodsi3, __modsi3): Increase frame size to 32. From-SVN: r69719 --- gcc/ChangeLog | 6 ++++++ gcc/config/xtensa/crti.asm | 4 ++-- gcc/config/xtensa/lib1funcs.asm | 29 +++++++++++++++++------------ 3 files changed, 25 insertions(+), 14 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6e591f3e096..2439b1da944 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2003-07-23 Bob Wilson + + * config/xtensa/crti.asm (_init, _fini): Increase frame size to 64. + * config/xtensa/lib1funcs.asm (__mulsi3, __udivsi3, __divsi3, + __umodsi3, __modsi3): Increase frame size to 32. + 2003-07-23 Geoffrey Keating * config/rs6000/host-darwin.c: ANSIfy, update comment for sigaltstack diff --git a/gcc/config/xtensa/crti.asm b/gcc/config/xtensa/crti.asm index 8019ed1c3db..8668b0d2409 100644 --- a/gcc/config/xtensa/crti.asm +++ b/gcc/config/xtensa/crti.asm @@ -34,11 +34,11 @@ .type _init,@function .align 4 _init: - entry sp, 40 + entry sp, 64 .section .fini .globl _fini .type _fini,@function .align 4 _fini: - entry sp, 40 + entry sp, 64 diff --git a/gcc/config/xtensa/lib1funcs.asm b/gcc/config/xtensa/lib1funcs.asm index 72cd958841b..632d56276da 100644 --- a/gcc/config/xtensa/lib1funcs.asm +++ b/gcc/config/xtensa/lib1funcs.asm @@ -30,8 +30,13 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA #include "xtensa-config.h" - # Define macros for the ABS and ADDX* instructions to handle cases - # where they are not included in the Xtensa processor configuration. +# Note: These functions use a minimum stack frame size of 32. This is +# necessary for Xtensa configurations that only support a fixed register +# window size of 8, where even leaf functions (such as these) need to +# allocate space for a 4-word "extra save area". + +# Define macros for the ABS and ADDX* instructions to handle cases +# where they are not included in the Xtensa processor configuration. .macro do_abs dst, src, tmp #if XCHAL_HAVE_ABS @@ -75,7 +80,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA .global __mulsi3 .type __mulsi3,@function __mulsi3: - entry sp, 16 + entry sp, 32 #if XCHAL_HAVE_MUL16 or a4, a2, a3 @@ -174,11 +179,11 @@ __mulsi3: #endif /* L_mulsi3 */ - # Define a macro for the NSAU (unsigned normalize shift amount) - # instruction, which computes the number of leading zero bits, - # to handle cases where it is not included in the Xtensa processor - # configuration. - +# Define a macro for the NSAU (unsigned normalize shift amount) +# instruction, which computes the number of leading zero bits, +# to handle cases where it is not included in the Xtensa processor +# configuration. + .macro do_nsau cnt, val, tmp, a #if XCHAL_HAVE_NSA nsau \cnt, \val @@ -237,7 +242,7 @@ __nsau_data: .global __udivsi3 .type __udivsi3,@function __udivsi3: - entry sp, 16 + entry sp, 32 bltui a3, 2, .Lle_one # check if the divisor <= 1 mov a6, a2 # keep dividend in a6 @@ -296,7 +301,7 @@ __udivsi3: .global __divsi3 .type __divsi3,@function __divsi3: - entry sp, 16 + entry sp, 32 xor a7, a2, a3 # sign = dividend ^ divisor do_abs a6, a2, a4 # udividend = abs(dividend) do_abs a3, a3, a4 # udivisor = abs(divisor) @@ -361,7 +366,7 @@ __divsi3: .global __umodsi3 .type __umodsi3,@function __umodsi3: - entry sp, 16 + entry sp, 32 bltui a3, 2, .Lle_one # check if the divisor is <= 1 do_nsau a5, a2, a6, a7 # dividend_shift = nsau(dividend) @@ -413,7 +418,7 @@ __umodsi3: .global __modsi3 .type __modsi3,@function __modsi3: - entry sp, 16 + entry sp, 32 mov a7, a2 # save original (signed) dividend do_abs a2, a2, a4 # udividend = abs(dividend) do_abs a3, a3, a4 # udivisor = abs(divisor) -- 2.30.2