[U-Boot] [PATCH 0/3] sh: fix private library and use it by default
Masahiro Yamada (3): sh: rename private library file name sh: import missing private libraries from Linux 3.19 sh: enable CONFIG_USE_PRIVATE_LIBGCC by default
arch/sh/Kconfig | 3 + arch/sh/lib/Makefile | 13 +- arch/sh/lib/{ashiftlt.S => ashlsi3.S} | 0 arch/sh/lib/ashrdi3.c | 27 ++ arch/sh/lib/{lshiftrt.S => lshrsi3.S} | 0 arch/sh/lib/udiv_qrnnd.S | 60 ++++ arch/sh/lib/udivsi3.S | 66 ++++ arch/sh/lib/udivsi3_i4i-Os.S | 128 +++++++ arch/sh/lib/udivsi3_i4i.S | 645 ++++++++++++++++++++++++++++++++++ 9 files changed, 940 insertions(+), 2 deletions(-) rename arch/sh/lib/{ashiftlt.S => ashlsi3.S} (100%) create mode 100644 arch/sh/lib/ashrdi3.c rename arch/sh/lib/{lshiftrt.S => lshrsi3.S} (100%) create mode 100644 arch/sh/lib/udiv_qrnnd.S create mode 100644 arch/sh/lib/udivsi3.S create mode 100644 arch/sh/lib/udivsi3_i4i-Os.S create mode 100644 arch/sh/lib/udivsi3_i4i.S
Rename two files to the corresponding file names in Linux. This helps us find missing libraries in the next commit.
Signed-off-by: Masahiro Yamada yamada.m@jp.panasonic.com ---
arch/sh/lib/Makefile | 4 ++-- arch/sh/lib/{ashiftlt.S => ashlsi3.S} | 0 arch/sh/lib/{lshiftrt.S => lshrsi3.S} | 0 3 files changed, 2 insertions(+), 2 deletions(-) rename arch/sh/lib/{ashiftlt.S => ashlsi3.S} (100%) rename arch/sh/lib/{lshiftrt.S => lshrsi3.S} (100%)
diff --git a/arch/sh/lib/Makefile b/arch/sh/lib/Makefile index 1304f4e..a50f24e 100644 --- a/arch/sh/lib/Makefile +++ b/arch/sh/lib/Makefile @@ -15,5 +15,5 @@ obj-y += time.o endif obj-$(CONFIG_CMD_SH_ZIMAGEBOOT) += zimageboot.o
-lib-$(CONFIG_USE_PRIVATE_LIBGCC) += ashiftrt.o ashiftlt.o lshiftrt.o \ - ashldi3.o ashrsi3.o lshrdi3.o movmem.o +lib-$(CONFIG_USE_PRIVATE_LIBGCC) += movmem.o ashldi3.o lshrdi3.o \ + ashlsi3.o ashrsi3.o ashiftrt.o lshrsi3.o diff --git a/arch/sh/lib/ashiftlt.S b/arch/sh/lib/ashlsi3.S similarity index 100% rename from arch/sh/lib/ashiftlt.S rename to arch/sh/lib/ashlsi3.S diff --git a/arch/sh/lib/lshiftrt.S b/arch/sh/lib/lshrsi3.S similarity index 100% rename from arch/sh/lib/lshiftrt.S rename to arch/sh/lib/lshrsi3.S
Hi,
2015-02-10 21:37 GMT+09:00 Masahiro Yamada yamada.m@jp.panasonic.com:
Rename two files to the corresponding file names in Linux. This helps us find missing libraries in the next commit.
Signed-off-by: Masahiro Yamada yamada.m@jp.panasonic.com
Applied, thanks.
Best regards, Nobuhiro
arch/sh/lib/Makefile | 4 ++-- arch/sh/lib/{ashiftlt.S => ashlsi3.S} | 0 arch/sh/lib/{lshiftrt.S => lshrsi3.S} | 0 3 files changed, 2 insertions(+), 2 deletions(-) rename arch/sh/lib/{ashiftlt.S => ashlsi3.S} (100%) rename arch/sh/lib/{lshiftrt.S => lshrsi3.S} (100%)
diff --git a/arch/sh/lib/Makefile b/arch/sh/lib/Makefile index 1304f4e..a50f24e 100644 --- a/arch/sh/lib/Makefile +++ b/arch/sh/lib/Makefile @@ -15,5 +15,5 @@ obj-y += time.o endif obj-$(CONFIG_CMD_SH_ZIMAGEBOOT) += zimageboot.o
-lib-$(CONFIG_USE_PRIVATE_LIBGCC) += ashiftrt.o ashiftlt.o lshiftrt.o \
ashldi3.o ashrsi3.o lshrdi3.o movmem.o+lib-$(CONFIG_USE_PRIVATE_LIBGCC) += movmem.o ashldi3.o lshrdi3.o \
ashlsi3.o ashrsi3.o ashiftrt.o lshrsi3.odiff --git a/arch/sh/lib/ashiftlt.S b/arch/sh/lib/ashlsi3.S similarity index 100% rename from arch/sh/lib/ashiftlt.S rename to arch/sh/lib/ashlsi3.S diff --git a/arch/sh/lib/lshiftrt.S b/arch/sh/lib/lshrsi3.S similarity index 100% rename from arch/sh/lib/lshiftrt.S rename to arch/sh/lib/lshrsi3.S -- 1.9.1
SuperH is supposed to support the Private Library feature, but it is actually not working.
If CONFIG_USE_PRIVATE_LIBGCC is enabled, the build fails for the undefined references to '__sdivsi3_i4i' and '__udivsi3_i4i'.
To fix this error, import missing libraries from Linux 3.19 and adjust them for U-Boot: - Remove "#include <linux/module.h>" and "EXPORT_SYMBOL(...)" - Use SPDX-License-Identifier
Signed-off-by: Masahiro Yamada yamada.m@jp.panasonic.com ---
arch/sh/lib/Makefile | 13 +- arch/sh/lib/ashrdi3.c | 27 ++ arch/sh/lib/udiv_qrnnd.S | 60 ++++ arch/sh/lib/udivsi3.S | 66 +++++ arch/sh/lib/udivsi3_i4i-Os.S | 128 +++++++++ arch/sh/lib/udivsi3_i4i.S | 645 +++++++++++++++++++++++++++++++++++++++++++ 6 files changed, 937 insertions(+), 2 deletions(-) create mode 100644 arch/sh/lib/ashrdi3.c create mode 100644 arch/sh/lib/udiv_qrnnd.S create mode 100644 arch/sh/lib/udivsi3.S create mode 100644 arch/sh/lib/udivsi3_i4i-Os.S create mode 100644 arch/sh/lib/udivsi3_i4i.S
diff --git a/arch/sh/lib/Makefile b/arch/sh/lib/Makefile index a50f24e..f7ae4f8 100644 --- a/arch/sh/lib/Makefile +++ b/arch/sh/lib/Makefile @@ -15,5 +15,14 @@ obj-y += time.o endif obj-$(CONFIG_CMD_SH_ZIMAGEBOOT) += zimageboot.o
-lib-$(CONFIG_USE_PRIVATE_LIBGCC) += movmem.o ashldi3.o lshrdi3.o \ - ashlsi3.o ashrsi3.o ashiftrt.o lshrsi3.o +udivsi3-y := udivsi3_i4i-Os.o + +ifneq ($(CONFIG_CC_OPTIMIZE_FOR_SIZE),y) +udivsi3-$(CONFIG_CPU_SH3) := udivsi3_i4i.o +udivsi3-$(CONFIG_CPU_SH4) := udivsi3_i4i.o +endif +udivsi3-y += udivsi3.o + +lib-$(CONFIG_USE_PRIVATE_LIBGCC) += movmem.o ashldi3.o ashrdi3.o lshrdi3.o \ + ashlsi3.o ashrsi3.o ashiftrt.o lshrsi3.o \ + udiv_qrnnd.o $(udivsi3-y) diff --git a/arch/sh/lib/ashrdi3.c b/arch/sh/lib/ashrdi3.c new file mode 100644 index 0000000..f30359b --- /dev/null +++ b/arch/sh/lib/ashrdi3.c @@ -0,0 +1,27 @@ +#include "libgcc.h" + +long long __ashrdi3(long long u, word_type b) +{ + DWunion uu, w; + word_type bm; + + if (b == 0) + return u; + + uu.ll = u; + bm = 32 - b; + + if (bm <= 0) { + /* w.s.high = 1..1 or 0..0 */ + w.s.high = + uu.s.high >> 31; + w.s.low = uu.s.high >> -bm; + } else { + const unsigned int carries = (unsigned int) uu.s.high << bm; + + w.s.high = uu.s.high >> b; + w.s.low = ((unsigned int) uu.s.low >> b) | carries; + } + + return w.ll; +} diff --git a/arch/sh/lib/udiv_qrnnd.S b/arch/sh/lib/udiv_qrnnd.S new file mode 100644 index 0000000..159d405 --- /dev/null +++ b/arch/sh/lib/udiv_qrnnd.S @@ -0,0 +1,60 @@ +/* Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, + 2004, 2005, 2006 + Free Software Foundation, Inc. + + * SPDX-License-Identifier: GPL-2.0+ + */ + +!! libgcc routines for the Renesas / SuperH SH CPUs. +!! Contributed by Steve Chamberlain. +!! sac@cygnus.com + +!! ashiftrt_r4_x, ___ashrsi3, ___ashlsi3, ___lshrsi3 routines +!! recoded in assembly by Toshiyasu Morita +!! tm@netcom.com + +/* SH2 optimizations for ___ashrsi3, ___ashlsi3, ___lshrsi3 and + ELF local label prefixes by J"orn Rennecke + amylaar@cygnus.com */ + + /* r0: rn r1: qn */ /* r0: n1 r4: n0 r5: d r6: d1 */ /* r2: __m */ + /* n1 < d, but n1 might be larger than d1. */ + .global __udiv_qrnnd_16 + .balign 8 +__udiv_qrnnd_16: + div0u + cmp/hi r6,r0 + bt .Lots + .rept 16 + div1 r6,r0 + .endr + extu.w r0,r1 + bt 0f + add r6,r0 +0: rotcl r1 + mulu.w r1,r5 + xtrct r4,r0 + swap.w r0,r0 + sts macl,r2 + cmp/hs r2,r0 + sub r2,r0 + bt 0f + addc r5,r0 + add #-1,r1 + bt 0f +1: add #-1,r1 + rts + add r5,r0 + .balign 8 +.Lots: + sub r5,r0 + swap.w r4,r1 + xtrct r0,r1 + clrt + mov r1,r0 + addc r5,r0 + mov #-1,r1 + bf/s 1b + shlr16 r1 +0: rts + nop diff --git a/arch/sh/lib/udivsi3.S b/arch/sh/lib/udivsi3.S new file mode 100644 index 0000000..53409f1 --- /dev/null +++ b/arch/sh/lib/udivsi3.S @@ -0,0 +1,66 @@ +/* Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, + 2004, 2005 + Free Software Foundation, Inc. + + * SPDX-License-Identifier: GPL-2.0+ + */ + +!! libgcc routines for the Renesas / SuperH SH CPUs. +!! Contributed by Steve Chamberlain. +!! sac@cygnus.com + + .balign 4 + .global __udivsi3 + .type __udivsi3, @function +div8: + div1 r5,r4 +div7: + div1 r5,r4; div1 r5,r4; div1 r5,r4 + div1 r5,r4; div1 r5,r4; div1 r5,r4; rts; div1 r5,r4 + +divx4: + div1 r5,r4; rotcl r0 + div1 r5,r4; rotcl r0 + div1 r5,r4; rotcl r0 + rts; div1 r5,r4 + +__udivsi3: + sts.l pr,@-r15 + extu.w r5,r0 + cmp/eq r5,r0 + bf/s large_divisor + div0u + swap.w r4,r0 + shlr16 r4 + bsr div8 + shll16 r5 + bsr div7 + div1 r5,r4 + xtrct r4,r0 + xtrct r0,r4 + bsr div8 + swap.w r4,r4 + bsr div7 + div1 r5,r4 + lds.l @r15+,pr + xtrct r4,r0 + swap.w r0,r0 + rotcl r0 + rts + shlr16 r5 + +large_divisor: + mov #0,r0 + xtrct r4,r0 + xtrct r0,r4 + bsr divx4 + rotcl r0 + bsr divx4 + rotcl r0 + bsr divx4 + rotcl r0 + bsr divx4 + rotcl r0 + lds.l @r15+,pr + rts + rotcl r0 diff --git a/arch/sh/lib/udivsi3_i4i-Os.S b/arch/sh/lib/udivsi3_i4i-Os.S new file mode 100644 index 0000000..54988ee --- /dev/null +++ b/arch/sh/lib/udivsi3_i4i-Os.S @@ -0,0 +1,128 @@ +/* Copyright (C) 2006 Free Software Foundation, Inc. + + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* Moderately Space-optimized libgcc routines for the Renesas SH / + STMicroelectronics ST40 CPUs. + Contributed by J"orn Rennecke joern.rennecke@st.com. */ + +/* Size: 186 bytes jointly for udivsi3_i4i and sdivsi3_i4i + sh4-200 run times: + udiv small divisor: 55 cycles + udiv large divisor: 52 cycles + sdiv small divisor, positive result: 59 cycles + sdiv large divisor, positive result: 56 cycles + sdiv small divisor, negative result: 65 cycles (*) + sdiv large divisor, negative result: 62 cycles (*) + (*): r2 is restored in the rts delay slot and has a lingering latency + of two more cycles. */ + .balign 4 + .global __udivsi3_i4i + .global __udivsi3_i4 + .set __udivsi3_i4, __udivsi3_i4i + .type __udivsi3_i4i, @function + .type __sdivsi3_i4i, @function +__udivsi3_i4i: + sts pr,r1 + mov.l r4,@-r15 + extu.w r5,r0 + cmp/eq r5,r0 + swap.w r4,r0 + shlr16 r4 + bf/s large_divisor + div0u + mov.l r5,@-r15 + shll16 r5 +sdiv_small_divisor: + div1 r5,r4 + bsr div6 + div1 r5,r4 + div1 r5,r4 + bsr div6 + div1 r5,r4 + xtrct r4,r0 + xtrct r0,r4 + bsr div7 + swap.w r4,r4 + div1 r5,r4 + bsr div7 + div1 r5,r4 + xtrct r4,r0 + mov.l @r15+,r5 + swap.w r0,r0 + mov.l @r15+,r4 + jmp @r1 + rotcl r0 +div7: + div1 r5,r4 +div6: + div1 r5,r4; div1 r5,r4; div1 r5,r4 + div1 r5,r4; div1 r5,r4; rts; div1 r5,r4 + +divx3: + rotcl r0 + div1 r5,r4 + rotcl r0 + div1 r5,r4 + rotcl r0 + rts + div1 r5,r4 + +large_divisor: + mov.l r5,@-r15 +sdiv_large_divisor: + xor r4,r0 + .rept 4 + rotcl r0 + bsr divx3 + div1 r5,r4 + .endr + mov.l @r15+,r5 + mov.l @r15+,r4 + jmp @r1 + rotcl r0 + + .global __sdivsi3_i4i + .global __sdivsi3_i4 + .global __sdivsi3 + .set __sdivsi3_i4, __sdivsi3_i4i + .set __sdivsi3, __sdivsi3_i4i +__sdivsi3_i4i: + mov.l r4,@-r15 + cmp/pz r5 + mov.l r5,@-r15 + bt/s pos_divisor + cmp/pz r4 + neg r5,r5 + extu.w r5,r0 + bt/s neg_result + cmp/eq r5,r0 + neg r4,r4 +pos_result: + swap.w r4,r0 + bra sdiv_check_divisor + sts pr,r1 +pos_divisor: + extu.w r5,r0 + bt/s pos_result + cmp/eq r5,r0 + neg r4,r4 +neg_result: + mova negate_result,r0 + ; + mov r0,r1 + swap.w r4,r0 + lds r2,macl + sts pr,r2 +sdiv_check_divisor: + shlr16 r4 + bf/s sdiv_large_divisor + div0u + bra sdiv_small_divisor + shll16 r5 + .balign 4 +negate_result: + neg r0,r0 + jmp @r2 + sts macl,r2 diff --git a/arch/sh/lib/udivsi3_i4i.S b/arch/sh/lib/udivsi3_i4i.S new file mode 100644 index 0000000..c529f75 --- /dev/null +++ b/arch/sh/lib/udivsi3_i4i.S @@ -0,0 +1,645 @@ +/* Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, + 2004, 2005, 2006 + Free Software Foundation, Inc. + + * SPDX-License-Identifier: GPL-2.0+ + */ + +!! libgcc routines for the Renesas / SuperH SH CPUs. +!! Contributed by Steve Chamberlain. +!! sac@cygnus.com + +!! ashiftrt_r4_x, ___ashrsi3, ___ashlsi3, ___lshrsi3 routines +!! recoded in assembly by Toshiyasu Morita +!! tm@netcom.com + +/* SH2 optimizations for ___ashrsi3, ___ashlsi3, ___lshrsi3 and + ELF local label prefixes by J"orn Rennecke + amylaar@cygnus.com */ + +/* This code used shld, thus is not suitable for SH1 / SH2. */ + +/* Signed / unsigned division without use of FPU, optimized for SH4. + Uses a lookup table for divisors in the range -128 .. +128, and + div1 with case distinction for larger divisors in three more ranges. + The code is lumped together with the table to allow the use of mova. */ +#ifdef CONFIG_CPU_LITTLE_ENDIAN +#define L_LSB 0 +#define L_LSWMSB 1 +#define L_MSWLSB 2 +#else +#define L_LSB 3 +#define L_LSWMSB 2 +#define L_MSWLSB 1 +#endif + + .balign 4 + .global __udivsi3_i4i + .global __udivsi3_i4 + .set __udivsi3_i4, __udivsi3_i4i + .type __udivsi3_i4i, @function +__udivsi3_i4i: + mov.w c128_w, r1 + div0u + mov r4,r0 + shlr8 r0 + cmp/hi r1,r5 + extu.w r5,r1 + bf udiv_le128 + cmp/eq r5,r1 + bf udiv_ge64k + shlr r0 + mov r5,r1 + shll16 r5 + mov.l r4,@-r15 + div1 r5,r0 + mov.l r1,@-r15 + div1 r5,r0 + div1 r5,r0 + bra udiv_25 + div1 r5,r0 + +div_le128: + mova div_table_ix,r0 + bra div_le128_2 + mov.b @(r0,r5),r1 +udiv_le128: + mov.l r4,@-r15 + mova div_table_ix,r0 + mov.b @(r0,r5),r1 + mov.l r5,@-r15 +div_le128_2: + mova div_table_inv,r0 + mov.l @(r0,r1),r1 + mov r5,r0 + tst #0xfe,r0 + mova div_table_clz,r0 + dmulu.l r1,r4 + mov.b @(r0,r5),r1 + bt/s div_by_1 + mov r4,r0 + mov.l @r15+,r5 + sts mach,r0 + /* clrt */ + addc r4,r0 + mov.l @r15+,r4 + rotcr r0 + rts + shld r1,r0 + +div_by_1_neg: + neg r4,r0 +div_by_1: + mov.l @r15+,r5 + rts + mov.l @r15+,r4 + +div_ge64k: + bt/s div_r8 + div0u + shll8 r5 + bra div_ge64k_2 + div1 r5,r0 +udiv_ge64k: + cmp/hi r0,r5 + mov r5,r1 + bt udiv_r8 + shll8 r5 + mov.l r4,@-r15 + div1 r5,r0 + mov.l r1,@-r15 +div_ge64k_2: + div1 r5,r0 + mov.l zero_l,r1 + .rept 4 + div1 r5,r0 + .endr + mov.l r1,@-r15 + div1 r5,r0 + mov.w m256_w,r1 + div1 r5,r0 + mov.b r0,@(L_LSWMSB,r15) + xor r4,r0 + and r1,r0 + bra div_ge64k_end + xor r4,r0 + +div_r8: + shll16 r4 + bra div_r8_2 + shll8 r4 +udiv_r8: + mov.l r4,@-r15 + shll16 r4 + clrt + shll8 r4 + mov.l r5,@-r15 +div_r8_2: + rotcl r4 + mov r0,r1 + div1 r5,r1 + mov r4,r0 + rotcl r0 + mov r5,r4 + div1 r5,r1 + .rept 5 + rotcl r0; div1 r5,r1 + .endr + rotcl r0 + mov.l @r15+,r5 + div1 r4,r1 + mov.l @r15+,r4 + rts + rotcl r0 + + .global __sdivsi3_i4i + .global __sdivsi3_i4 + .global __sdivsi3 + .set __sdivsi3_i4, __sdivsi3_i4i + .set __sdivsi3, __sdivsi3_i4i + .type __sdivsi3_i4i, @function + /* This is link-compatible with a __sdivsi3 call, + but we effectively clobber only r1. */ +__sdivsi3_i4i: + mov.l r4,@-r15 + cmp/pz r5 + mov.w c128_w, r1 + bt/s pos_divisor + cmp/pz r4 + mov.l r5,@-r15 + neg r5,r5 + bt/s neg_result + cmp/hi r1,r5 + neg r4,r4 +pos_result: + extu.w r5,r0 + bf div_le128 + cmp/eq r5,r0 + mov r4,r0 + shlr8 r0 + bf/s div_ge64k + cmp/hi r0,r5 + div0u + shll16 r5 + div1 r5,r0 + div1 r5,r0 + div1 r5,r0 +udiv_25: + mov.l zero_l,r1 + div1 r5,r0 + div1 r5,r0 + mov.l r1,@-r15 + .rept 3 + div1 r5,r0 + .endr + mov.b r0,@(L_MSWLSB,r15) + xtrct r4,r0 + swap.w r0,r0 + .rept 8 + div1 r5,r0 + .endr + mov.b r0,@(L_LSWMSB,r15) +div_ge64k_end: + .rept 8 + div1 r5,r0 + .endr + mov.l @r15+,r4 ! zero-extension and swap using LS unit. + extu.b r0,r0 + mov.l @r15+,r5 + or r4,r0 + mov.l @r15+,r4 + rts + rotcl r0 + +div_le128_neg: + tst #0xfe,r0 + mova div_table_ix,r0 + mov.b @(r0,r5),r1 + mova div_table_inv,r0 + bt/s div_by_1_neg + mov.l @(r0,r1),r1 + mova div_table_clz,r0 + dmulu.l r1,r4 + mov.b @(r0,r5),r1 + mov.l @r15+,r5 + sts mach,r0 + /* clrt */ + addc r4,r0 + mov.l @r15+,r4 + rotcr r0 + shld r1,r0 + rts + neg r0,r0 + +pos_divisor: + mov.l r5,@-r15 + bt/s pos_result + cmp/hi r1,r5 + neg r4,r4 +neg_result: + extu.w r5,r0 + bf div_le128_neg + cmp/eq r5,r0 + mov r4,r0 + shlr8 r0 + bf/s div_ge64k_neg + cmp/hi r0,r5 + div0u + mov.l zero_l,r1 + shll16 r5 + div1 r5,r0 + mov.l r1,@-r15 + .rept 7 + div1 r5,r0 + .endr + mov.b r0,@(L_MSWLSB,r15) + xtrct r4,r0 + swap.w r0,r0 + .rept 8 + div1 r5,r0 + .endr + mov.b r0,@(L_LSWMSB,r15) +div_ge64k_neg_end: + .rept 8 + div1 r5,r0 + .endr + mov.l @r15+,r4 ! zero-extension and swap using LS unit. + extu.b r0,r1 + mov.l @r15+,r5 + or r4,r1 +div_r8_neg_end: + mov.l @r15+,r4 + rotcl r1 + rts + neg r1,r0 + +div_ge64k_neg: + bt/s div_r8_neg + div0u + shll8 r5 + mov.l zero_l,r1 + .rept 6 + div1 r5,r0 + .endr + mov.l r1,@-r15 + div1 r5,r0 + mov.w m256_w,r1 + div1 r5,r0 + mov.b r0,@(L_LSWMSB,r15) + xor r4,r0 + and r1,r0 + bra div_ge64k_neg_end + xor r4,r0 + +c128_w: + .word 128 + +div_r8_neg: + clrt + shll16 r4 + mov r4,r1 + shll8 r1 + mov r5,r4 + .rept 7 + rotcl r1; div1 r5,r0 + .endr + mov.l @r15+,r5 + rotcl r1 + bra div_r8_neg_end + div1 r4,r0 + +m256_w: + .word 0xff00 +/* This table has been generated by divtab-sh4.c. */ + .balign 4 +div_table_clz: + .byte 0 + .byte 1 + .byte 0 + .byte -1 + .byte -1 + .byte -2 + .byte -2 + .byte -2 + .byte -2 + .byte -3 + .byte -3 + .byte -3 + .byte -3 + .byte -3 + .byte -3 + .byte -3 + .byte -3 + .byte -4 + .byte -4 + .byte -4 + .byte -4 + .byte -4 + .byte -4 + .byte -4 + .byte -4 + .byte -4 + .byte -4 + .byte -4 + .byte -4 + .byte -4 + .byte -4 + .byte -4 + .byte -4 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -5 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 + .byte -6 +/* Lookup table translating positive divisor to index into table of + normalized inverse. N.B. the '0' entry is also the last entry of the + previous table, and causes an unaligned access for division by zero. */ +div_table_ix: + .byte -6 + .byte -128 + .byte -128 + .byte 0 + .byte -128 + .byte -64 + .byte 0 + .byte 64 + .byte -128 + .byte -96 + .byte -64 + .byte -32 + .byte 0 + .byte 32 + .byte 64 + .byte 96 + .byte -128 + .byte -112 + .byte -96 + .byte -80 + .byte -64 + .byte -48 + .byte -32 + .byte -16 + .byte 0 + .byte 16 + .byte 32 + .byte 48 + .byte 64 + .byte 80 + .byte 96 + .byte 112 + .byte -128 + .byte -120 + .byte -112 + .byte -104 + .byte -96 + .byte -88 + .byte -80 + .byte -72 + .byte -64 + .byte -56 + .byte -48 + .byte -40 + .byte -32 + .byte -24 + .byte -16 + .byte -8 + .byte 0 + .byte 8 + .byte 16 + .byte 24 + .byte 32 + .byte 40 + .byte 48 + .byte 56 + .byte 64 + .byte 72 + .byte 80 + .byte 88 + .byte 96 + .byte 104 + .byte 112 + .byte 120 + .byte -128 + .byte -124 + .byte -120 + .byte -116 + .byte -112 + .byte -108 + .byte -104 + .byte -100 + .byte -96 + .byte -92 + .byte -88 + .byte -84 + .byte -80 + .byte -76 + .byte -72 + .byte -68 + .byte -64 + .byte -60 + .byte -56 + .byte -52 + .byte -48 + .byte -44 + .byte -40 + .byte -36 + .byte -32 + .byte -28 + .byte -24 + .byte -20 + .byte -16 + .byte -12 + .byte -8 + .byte -4 + .byte 0 + .byte 4 + .byte 8 + .byte 12 + .byte 16 + .byte 20 + .byte 24 + .byte 28 + .byte 32 + .byte 36 + .byte 40 + .byte 44 + .byte 48 + .byte 52 + .byte 56 + .byte 60 + .byte 64 + .byte 68 + .byte 72 + .byte 76 + .byte 80 + .byte 84 + .byte 88 + .byte 92 + .byte 96 + .byte 100 + .byte 104 + .byte 108 + .byte 112 + .byte 116 + .byte 120 + .byte 124 + .byte -128 +/* 1/64 .. 1/127, normalized. There is an implicit leading 1 in bit 32. */ + .balign 4 +zero_l: + .long 0x0 + .long 0xF81F81F9 + .long 0xF07C1F08 + .long 0xE9131AC0 + .long 0xE1E1E1E2 + .long 0xDAE6076C + .long 0xD41D41D5 + .long 0xCD856891 + .long 0xC71C71C8 + .long 0xC0E07039 + .long 0xBACF914D + .long 0xB4E81B4F + .long 0xAF286BCB + .long 0xA98EF607 + .long 0xA41A41A5 + .long 0x9EC8E952 + .long 0x9999999A + .long 0x948B0FCE + .long 0x8F9C18FA + .long 0x8ACB90F7 + .long 0x86186187 + .long 0x81818182 + .long 0x7D05F418 + .long 0x78A4C818 + .long 0x745D1746 + .long 0x702E05C1 + .long 0x6C16C16D + .long 0x68168169 + .long 0x642C8591 + .long 0x60581606 + .long 0x5C9882BA + .long 0x58ED2309 +div_table_inv: + .long 0x55555556 + .long 0x51D07EAF + .long 0x4E5E0A73 + .long 0x4AFD6A06 + .long 0x47AE147B + .long 0x446F8657 + .long 0x41414142 + .long 0x3E22CBCF + .long 0x3B13B13C + .long 0x38138139 + .long 0x3521CFB3 + .long 0x323E34A3 + .long 0x2F684BDB + .long 0x2C9FB4D9 + .long 0x29E4129F + .long 0x27350B89 + .long 0x24924925 + .long 0x21FB7813 + .long 0x1F7047DD + .long 0x1CF06ADB + .long 0x1A7B9612 + .long 0x18118119 + .long 0x15B1E5F8 + .long 0x135C8114 + .long 0x11111112 + .long 0xECF56BF + .long 0xC9714FC + .long 0xA6810A7 + .long 0x8421085 + .long 0x624DD30 + .long 0x4104105 + .long 0x2040811 + /* maximum error: 0.987342 scaled: 0.921875*/
Now this feature works. Let's turn it on by default so we do not depend on specific tool-chains.
Signed-off-by: Masahiro Yamada yamada.m@jp.panasonic.com ---
arch/sh/Kconfig | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index ff8f5b5..2128f23 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -124,6 +124,9 @@ config SYS_CPU default "sh3" if CPU_SH3 default "sh4" if CPU_SH4
+config USE_PRIVATE_LIBGCC + default y + source "board/alphaproject/ap_sh4a_4a/Kconfig" source "board/espt/Kconfig" source "board/mpr2/Kconfig"
Hi,
2015-02-10 21:37 GMT+09:00 Masahiro Yamada yamada.m@jp.panasonic.com:
Now this feature works. Let's turn it on by default so we do not depend on specific tool-chains.
Signed-off-by: Masahiro Yamada yamada.m@jp.panasonic.com
Applied, thanks.
Best regards, Nobuhiro
arch/sh/Kconfig | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index ff8f5b5..2128f23 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -124,6 +124,9 @@ config SYS_CPU default "sh3" if CPU_SH3 default "sh4" if CPU_SH4
+config USE_PRIVATE_LIBGCC
default ysource "board/alphaproject/ap_sh4a_4a/Kconfig" source "board/espt/Kconfig" source "board/mpr2/Kconfig" -- 1.9.1
participants (2)
-
Masahiro Yamada -
Nobuhiro Iwamatsu