summaryrefslogtreecommitdiffstats
path: root/meta/packages/gcc/gcc-3.4.4/gcc-3.4.0-arm-softfloat.patch
diff options
context:
space:
mode:
Diffstat (limited to 'meta/packages/gcc/gcc-3.4.4/gcc-3.4.0-arm-softfloat.patch')
-rw-r--r--meta/packages/gcc/gcc-3.4.4/gcc-3.4.0-arm-softfloat.patch256
1 files changed, 0 insertions, 256 deletions
diff --git a/meta/packages/gcc/gcc-3.4.4/gcc-3.4.0-arm-softfloat.patch b/meta/packages/gcc/gcc-3.4.4/gcc-3.4.0-arm-softfloat.patch
deleted file mode 100644
index f53d64b374..0000000000
--- a/meta/packages/gcc/gcc-3.4.4/gcc-3.4.0-arm-softfloat.patch
+++ /dev/null
@@ -1,256 +0,0 @@
1#
2# Submitted:
3#
4# Dimitry Andric <dimitry@andric.com>, 2004-05-01
5#
6# Description:
7#
8# Nicholas Pitre released this patch for gcc soft-float support here:
9# http://lists.arm.linux.org.uk/pipermail/linux-arm/2003-October/006436.html
10#
11# This version has been adapted to work with gcc 3.4.0.
12#
13# The original patch doesn't distinguish between softfpa and softvfp modes
14# in the way Nicholas Pitre probably meant. His description is:
15#
16# "Default is to use APCS-32 mode with soft-vfp. The old Linux default for
17# floats can be achieved with -mhard-float or with the configure
18# --with-float=hard option. If -msoft-float or --with-float=soft is used then
19# software float support will be used just like the default but with the legacy
20# big endian word ordering for double float representation instead."
21#
22# Which means the following:
23#
24# * If you compile without -mhard-float or -msoft-float, you should get
25# software floating point, using the VFP format. The produced object file
26# should have these flags in its header:
27#
28# private flags = 600: [APCS-32] [VFP float format] [software FP]
29#
30# * If you compile with -mhard-float, you should get hardware floating point,
31# which always uses the FPA format. Object file header flags should be:
32#
33# private flags = 0: [APCS-32] [FPA float format]
34#
35# * If you compile with -msoft-float, you should get software floating point,
36# using the FPA format. This is done for compatibility reasons with many
37# existing distributions. Object file header flags should be:
38#
39# private flags = 200: [APCS-32] [FPA float format] [software FP]
40#
41# The original patch from Nicholas Pitre contained the following constructs:
42#
43# #define SUBTARGET_EXTRA_ASM_SPEC "%{!mcpu=*:-mcpu=xscale} \
44# %{mhard-float:-mfpu=fpa} \
45# %{!mhard-float: %{msoft-float:-mfpu=softfpa;:-mfpu=softvfp}}"
46#
47# However, gcc doesn't accept this ";:" notation, used in the 3rd line. This
48# is probably the reason Robert Schwebel modified it to:
49#
50# #define SUBTARGET_EXTRA_ASM_SPEC "%{!mcpu=*:-mcpu=xscale} \
51# %{mhard-float:-mfpu=fpa} \
52# %{!mhard-float: %{msoft-float:-mfpu=softfpa -mfpu=softvfp}}"
53#
54# But this causes the following behaviour:
55#
56# * If you compile without -mhard-float or -msoft-float, the compiler generates
57# software floating point instructions, but *nothing* is passed to the
58# assembler, which results in an object file which has flags:
59#
60# private flags = 0: [APCS-32] [FPA float format]
61#
62# This is not correct!
63#
64# * If you compile with -mhard-float, the compiler generates hardware floating
65# point instructions, and passes "-mfpu=fpa" to the assembler, which results
66# in an object file which has the same flags as in the previous item, but now
67# those *are* correct.
68#
69# * If you compile with -msoft-float, the compiler generates software floating
70# point instructions, and passes "-mfpu=softfpa -mfpu=softvfp" (in that
71# order) to the assembler, which results in an object file with flags:
72#
73# private flags = 600: [APCS-32] [VFP float format] [software FP]
74#
75# This is not correct, because the last "-mfpu=" option on the assembler
76# command line determines the actual FPU convention used (which should be FPA
77# in this case).
78#
79# Therefore, I modified this patch to get the desired behaviour. Every
80# instance of the notation:
81#
82# %{msoft-float:-mfpu=softfpa -mfpu=softvfp}
83#
84# was changed to:
85#
86# %{msoft-float:-mfpu=softfpa} %{!msoft-float:-mfpu=softvfp}
87#
88# I also did the following:
89#
90# * Modified all TARGET_DEFAULT macros I could find to include ARM_FLAG_VFP, to
91# be consistent with Nicholas' original patch.
92# * Removed any "msoft-float" or "mhard-float" from all MULTILIB_DEFAULTS
93# macros I could find. I think that if you compile without any options, you
94# would like to get the defaults. :)
95# * Removed the extra -lfloat option from LIBGCC_SPEC, since it isn't needed
96# anymore. (The required functions are now in libgcc.)
97
98diff -urNd gcc-3.4.0-orig/gcc/config/arm/coff.h gcc-3.4.0/gcc/config/arm/coff.h
99--- gcc-3.4.0-orig/gcc/config/arm/coff.h 2004-02-24 15:25:22.000000000 +0100
100+++ gcc-3.4.0/gcc/config/arm/coff.h 2004-05-01 19:07:06.059409600 +0200
101@@ -31,11 +31,16 @@
102 #define TARGET_VERSION fputs (" (ARM/coff)", stderr)
103
104 #undef TARGET_DEFAULT
105-#define TARGET_DEFAULT (ARM_FLAG_SOFT_FLOAT | ARM_FLAG_APCS_32 | ARM_FLAG_APCS_FRAME | ARM_FLAG_MMU_TRAPS)
106+#define TARGET_DEFAULT \
107+ ( ARM_FLAG_SOFT_FLOAT \
108+ | ARM_FLAG_VFP \
109+ | ARM_FLAG_APCS_32 \
110+ | ARM_FLAG_APCS_FRAME \
111+ | ARM_FLAG_MMU_TRAPS )
112
113 #ifndef MULTILIB_DEFAULTS
114 #define MULTILIB_DEFAULTS \
115- { "marm", "mlittle-endian", "msoft-float", "mapcs-32", "mno-thumb-interwork" }
116+ { "marm", "mlittle-endian", "mapcs-32", "mno-thumb-interwork" }
117 #endif
118
119 /* This is COFF, but prefer stabs. */
120diff -urNd gcc-3.4.0-orig/gcc/config/arm/elf.h gcc-3.4.0/gcc/config/arm/elf.h
121--- gcc-3.4.0-orig/gcc/config/arm/elf.h 2004-02-24 15:25:22.000000000 +0100
122+++ gcc-3.4.0/gcc/config/arm/elf.h 2004-05-01 19:12:16.976486400 +0200
123@@ -46,7 +46,9 @@
124
125 #ifndef SUBTARGET_ASM_FLOAT_SPEC
126 #define SUBTARGET_ASM_FLOAT_SPEC "\
127-%{mapcs-float:-mfloat} %{msoft-float:-mfpu=softfpa}"
128+%{mapcs-float:-mfloat} \
129+%{mhard-float:-mfpu=fpa} \
130+%{!mhard-float: %{msoft-float:-mfpu=softfpa} %{!msoft-float:-mfpu=softvfp}}"
131 #endif
132
133 #ifndef ASM_SPEC
134@@ -106,12 +108,17 @@
135 #endif
136
137 #ifndef TARGET_DEFAULT
138-#define TARGET_DEFAULT (ARM_FLAG_SOFT_FLOAT | ARM_FLAG_APCS_32 | ARM_FLAG_APCS_FRAME | ARM_FLAG_MMU_TRAPS)
139+#define TARGET_DEFAULT \
140+ ( ARM_FLAG_SOFT_FLOAT \
141+ | ARM_FLAG_VFP \
142+ | ARM_FLAG_APCS_32 \
143+ | ARM_FLAG_APCS_FRAME \
144+ | ARM_FLAG_MMU_TRAPS )
145 #endif
146
147 #ifndef MULTILIB_DEFAULTS
148 #define MULTILIB_DEFAULTS \
149- { "marm", "mlittle-endian", "msoft-float", "mapcs-32", "mno-thumb-interwork", "fno-leading-underscore" }
150+ { "marm", "mlittle-endian", "mapcs-32", "mno-thumb-interwork", "fno-leading-underscore" }
151 #endif
152
153 #define TARGET_ASM_FILE_START_APP_OFF true
154diff -urNd gcc-3.4.0-orig/gcc/config/arm/linux-elf.h gcc-3.4.0/gcc/config/arm/linux-elf.h
155--- gcc-3.4.0-orig/gcc/config/arm/linux-elf.h 2004-01-31 07:18:11.000000000 +0100
156+++ gcc-3.4.0/gcc/config/arm/linux-elf.h 2004-05-01 19:19:06.935979200 +0200
157@@ -30,9 +30,27 @@
158 /* Do not assume anything about header files. */
159 #define NO_IMPLICIT_EXTERN_C
160
161-/* Default is to use APCS-32 mode. */
162+/*
163+ * Default is to use APCS-32 mode with soft-vfp.
164+ * The old Linux default for floats can be achieved with -mhard-float
165+ * or with the configure --with-float=hard option.
166+ * If -msoft-float or --with-float=soft is used then software float
167+ * support will be used just like the default but with the legacy
168+ * big endian word ordering for double float representation instead.
169+ */
170+
171 #undef TARGET_DEFAULT
172-#define TARGET_DEFAULT (ARM_FLAG_APCS_32 | ARM_FLAG_MMU_TRAPS)
173+#define TARGET_DEFAULT \
174+ ( ARM_FLAG_APCS_32 \
175+ | ARM_FLAG_SOFT_FLOAT \
176+ | ARM_FLAG_VFP \
177+ | ARM_FLAG_MMU_TRAPS )
178+
179+#undef SUBTARGET_EXTRA_ASM_SPEC
180+#define SUBTARGET_EXTRA_ASM_SPEC "\
181+%{!mcpu=*:-mcpu=xscale} \
182+%{mhard-float:-mfpu=fpa} \
183+%{!mhard-float: %{msoft-float:-mfpu=softfpa} %{!msoft-float:-mfpu=softvfp}}"
184
185 #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6
186
187@@ -40,7 +58,7 @@
188
189 #undef MULTILIB_DEFAULTS
190 #define MULTILIB_DEFAULTS \
191- { "marm", "mlittle-endian", "mhard-float", "mapcs-32", "mno-thumb-interwork" }
192+ { "marm", "mlittle-endian", "mapcs-32", "mno-thumb-interwork" }
193
194 #define CPP_APCS_PC_DEFAULT_SPEC "-D__APCS_32__"
195
196@@ -55,7 +73,7 @@
197 %{shared:-lc} \
198 %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
199
200-#define LIBGCC_SPEC "%{msoft-float:-lfloat} -lgcc"
201+#define LIBGCC_SPEC "-lgcc"
202
203 /* Provide a STARTFILE_SPEC appropriate for GNU/Linux. Here we add
204 the GNU/Linux magical crtbegin.o file (see crtstuff.c) which
205diff -urNd gcc-3.4.0-orig/gcc/config/arm/t-linux gcc-3.4.0/gcc/config/arm/t-linux
206--- gcc-3.4.0-orig/gcc/config/arm/t-linux 2003-09-20 23:09:07.000000000 +0200
207+++ gcc-3.4.0/gcc/config/arm/t-linux 2004-05-01 20:31:59.102846400 +0200
208@@ -4,7 +4,10 @@
209 LIBGCC2_DEBUG_CFLAGS = -g0
210
211 LIB1ASMSRC = arm/lib1funcs.asm
212-LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx
213+LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx \
214+ _negdf2 _addsubdf3 _muldivdf3 _cmpdf2 _unorddf2 _fixdfsi _fixunsdfsi \
215+ _truncdfsf2 _negsf2 _addsubsf3 _muldivsf3 _cmpsf2 _unordsf2 \
216+ _fixsfsi _fixunssfsi
217
218 # MULTILIB_OPTIONS = mhard-float/msoft-float
219 # MULTILIB_DIRNAMES = hard-float soft-float
220diff -urNd gcc-3.4.0-orig/gcc/config/arm/unknown-elf.h gcc-3.4.0/gcc/config/arm/unknown-elf.h
221--- gcc-3.4.0-orig/gcc/config/arm/unknown-elf.h 2004-02-24 15:25:22.000000000 +0100
222+++ gcc-3.4.0/gcc/config/arm/unknown-elf.h 2004-05-01 19:09:09.016212800 +0200
223@@ -30,7 +30,12 @@
224
225 /* Default to using APCS-32 and software floating point. */
226 #ifndef TARGET_DEFAULT
227-#define TARGET_DEFAULT (ARM_FLAG_SOFT_FLOAT | ARM_FLAG_APCS_32 | ARM_FLAG_APCS_FRAME | ARM_FLAG_MMU_TRAPS)
228+#define TARGET_DEFAULT \
229+ ( ARM_FLAG_SOFT_FLOAT \
230+ | ARM_FLAG_VFP \
231+ | ARM_FLAG_APCS_32 \
232+ | ARM_FLAG_APCS_FRAME \
233+ | ARM_FLAG_MMU_TRAPS )
234 #endif
235
236 /* Now we define the strings used to build the spec file. */
237diff -urNd gcc-3.4.0-orig/gcc/config/arm/xscale-elf.h gcc-3.4.0/gcc/config/arm/xscale-elf.h
238--- gcc-3.4.0-orig/gcc/config/arm/xscale-elf.h 2003-07-02 01:26:43.000000000 +0200
239+++ gcc-3.4.0/gcc/config/arm/xscale-elf.h 2004-05-01 20:15:36.620105600 +0200
240@@ -49,11 +49,12 @@
241 endian, regardless of the endian-ness of the memory
242 system. */
243
244-#define SUBTARGET_EXTRA_ASM_SPEC "%{!mcpu=*:-mcpu=xscale} \
245- %{mhard-float:-mfpu=fpa} \
246- %{!mhard-float: %{msoft-float:-mfpu=softfpa;:-mfpu=softvfp}}"
247+#define SUBTARGET_EXTRA_ASM_SPEC "\
248+%{!mcpu=*:-mcpu=xscale} \
249+%{mhard-float:-mfpu=fpa} \
250+%{!mhard-float: %{msoft-float:-mfpu=softfpa} %{!msoft-float:-mfpu=softvfp}}"
251
252 #ifndef MULTILIB_DEFAULTS
253 #define MULTILIB_DEFAULTS \
254- { "mlittle-endian", "mno-thumb-interwork", "marm", "msoft-float" }
255+ { "mlittle-endian", "mno-thumb-interwork", "marm" }
256 #endif
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2025-12-12 10:03:40 +0000