Mercurial > hg > index.cgi

annotate extra/README @ 464:9134f6426c57

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Fix think-o in PCR optimization fix from previous commit Need to make sure we don't encode a larger offset size than needed if we guess a 16 bit offset with "pretend max" in effect.
author William Astle <lost@l-w.ca>
date Wed, 28 Feb 2018 23:15:35 -0700
parents 3832a68d83ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
72
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
1 These files are extra utility type scripts that can be used for various
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
2 purposes.
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
3
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
4 as
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
5
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
6 This is a sort of front-end script that makes lwasm look approximately like
182
e0cc66fd0551 Added gcc6809lw patch to extras
lost@l-w.ca
parents: 72
diff changeset
7 gnu as which is useful for using lwasm as a backend to gcc. You may need to
e0cc66fd0551 Added gcc6809lw patch to extras
lost@l-w.ca
parents: 72
diff changeset
8 edit it to make it work fully.
72
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
9
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
10 ld
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
11
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
12 Similar to the "as" script above except for lwlink.
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
13
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
14
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
15 ar
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
16
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
17 Similar to the "as" script above except for lwar.
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
18
396
d0c0fede5021 Update to gcc6809lw patch which may help compilation of some sources
William Astle <lost@l-w.ca>
parents: 340
diff changeset
19 gcc6809lw-*.patch
182
e0cc66fd0551 Added gcc6809lw patch to extras
lost@l-w.ca
parents: 72
diff changeset
20
e0cc66fd0551 Added gcc6809lw patch to extras
lost@l-w.ca
parents: 72
diff changeset
21 These are patches to the main gcc source distribution for specific releases.
340
b0fb675d1ed4 Add gcc 4.6.4 version of gcc6809
William Astle <lost@l-w.ca>
parents: 196
diff changeset
22 The last number after the dash is a patch level for the specific patch. It
b0fb675d1ed4 Add gcc 4.6.4 version of gcc6809
William Astle <lost@l-w.ca>
parents: 196
diff changeset
23 is worth noting that a patch for a particular minor version of GCC may work
b0fb675d1ed4 Add gcc 4.6.4 version of gcc6809
William Astle <lost@l-w.ca>
parents: 196
diff changeset
24 with later minor versions in the same release sequence. That is, a patch
b0fb675d1ed4 Add gcc 4.6.4 version of gcc6809
William Astle <lost@l-w.ca>
parents: 196
diff changeset
25 for 4.6.1 might work with 4.6.4. These are different to the official
b0fb675d1ed4 Add gcc 4.6.4 version of gcc6809
William Astle <lost@l-w.ca>
parents: 196
diff changeset
26 gcc6809 releases in the following ways. First, all the source for as-6809
b0fb675d1ed4 Add gcc 4.6.4 version of gcc6809
William Astle <lost@l-w.ca>
parents: 196
diff changeset
27 is removed. Also, the special "helper" makefile and directory is removed.
b0fb675d1ed4 Add gcc 4.6.4 version of gcc6809
William Astle <lost@l-w.ca>
parents: 196
diff changeset
28 Also, as of this writing, the latest "official" release was for gcc 4.3.4
b0fb675d1ed4 Add gcc 4.6.4 version of gcc6809
William Astle <lost@l-w.ca>
parents: 196
diff changeset
29 which does not build on 64 bit linux.
182
e0cc66fd0551 Added gcc6809lw patch to extras
lost@l-w.ca
parents: 72
diff changeset
30
196
83bb31ca8b6a Elaborated the readme for the gcc6809 patch
William Astle <lost@l-w.ca>
parents: 182
diff changeset
31 In the event you have used the "official" gcc6809 with the default as6809
83bb31ca8b6a Elaborated the readme for the gcc6809 patch
William Astle <lost@l-w.ca>
parents: 182
diff changeset
32 assembler that comes with it, you should be aware that while lwasm is mostly
83bb31ca8b6a Elaborated the readme for the gcc6809 patch
William Astle <lost@l-w.ca>
parents: 182
diff changeset
33 compatible with it syntax wise, there are differences, particularly in
83bb31ca8b6a Elaborated the readme for the gcc6809 patch
William Astle <lost@l-w.ca>
parents: 182
diff changeset
34 pseudo operations and source line syntax (most notably that you must have
83bb31ca8b6a Elaborated the readme for the gcc6809 patch
William Astle <lost@l-w.ca>
parents: 182
diff changeset
35 whitespace preceeding assembler directives and instructions). You will
83bb31ca8b6a Elaborated the readme for the gcc6809 patch
William Astle <lost@l-w.ca>
parents: 182
diff changeset
36 likely not run into these unless you are using inline asm. Refer to the
83bb31ca8b6a Elaborated the readme for the gcc6809 patch
William Astle <lost@l-w.ca>
parents: 182
diff changeset
37 lwtools documentation for the specific line format required by lwasm.
83bb31ca8b6a Elaborated the readme for the gcc6809 patch
William Astle <lost@l-w.ca>
parents: 182
diff changeset
38
83bb31ca8b6a Elaborated the readme for the gcc6809 patch
William Astle <lost@l-w.ca>
parents: 182
diff changeset
39 It is worth noting that neither gcc6809 nor lwtools comes with a standard C
83bb31ca8b6a Elaborated the readme for the gcc6809 patch
William Astle <lost@l-w.ca>
parents: 182
diff changeset
40 library.
83bb31ca8b6a Elaborated the readme for the gcc6809 patch
William Astle <lost@l-w.ca>
parents: 182
diff changeset
41
83bb31ca8b6a Elaborated the readme for the gcc6809 patch
William Astle <lost@l-w.ca>
parents: 182
diff changeset
42 It is also worth noting that for many projects, it will be more flexible to
83bb31ca8b6a Elaborated the readme for the gcc6809 patch
William Astle <lost@l-w.ca>
parents: 182
diff changeset
43 invoke lwlink directly rather than using the ld script or gcc as a front
83bb31ca8b6a Elaborated the readme for the gcc6809 patch
William Astle <lost@l-w.ca>
parents: 182
diff changeset
44 end. See the lwtools documentation for details on using lwlink.
72
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
45
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
46 To use these scripts, you really need to understand how to build a gcc as a
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
47 cross compiler. The basics are that you put the as, ld, and ar scripts
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
48 whereever you plan to put your cross-development binaries. Then, when
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
49 building the cross compiler, you tell it where the scripts are.
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
50
196
83bb31ca8b6a Elaborated the readme for the gcc6809 patch
William Astle <lost@l-w.ca>
parents: 182
diff changeset
51 Please note that the following recipe is an example only. If you are
83bb31ca8b6a Elaborated the readme for the gcc6809 patch
William Astle <lost@l-w.ca>
parents: 182
diff changeset
52 planning to install multiple instances of gcc6809 for different targets, you
83bb31ca8b6a Elaborated the readme for the gcc6809 patch
William Astle <lost@l-w.ca>
parents: 182
diff changeset
53 will most certainly need to modify the steps below. Providing a complete
83bb31ca8b6a Elaborated the readme for the gcc6809 patch
William Astle <lost@l-w.ca>
parents: 182
diff changeset
54 understanding of building a gcc toolchain for cross compilation is well
83bb31ca8b6a Elaborated the readme for the gcc6809 patch
William Astle <lost@l-w.ca>
parents: 182
diff changeset
55 beyond the scope of this document.
83bb31ca8b6a Elaborated the readme for the gcc6809 patch
William Astle <lost@l-w.ca>
parents: 182
diff changeset
56
83bb31ca8b6a Elaborated the readme for the gcc6809 patch
William Astle <lost@l-w.ca>
parents: 182
diff changeset
57 The following works for a single installation.
72
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
58
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
59 1. Install the ar, as, and ld scripts named m6809-unknown-{as,ar,ld} in a
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
60 directory in your path, say /usr/local/coco/bin/.
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
61
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
62 2. Make symbolic links to /bin/true for similarly named nm, objdump, ranlib,
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
63 and strip in the same directory Some of these may not be necessary.
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
64
182
e0cc66fd0551 Added gcc6809lw patch to extras
lost@l-w.ca
parents: 72
diff changeset
65 3. Unpack gcc and apply the gcc6809 patch. The gcc6809lw* patch file
e0cc66fd0551 Added gcc6809lw patch to extras
lost@l-w.ca
parents: 72
diff changeset
66 in this directory is known to work with these instructions.
72
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
67
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
68 4. Make sure /usr/local/coco/bin is in your PATH
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
69
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
70 5. Make sure "." is NOT in your path or is at the END of PATH. If you have
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
71 gazillions of errors pop up compiling "gemodes.c", this is your problem.
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
72
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
73 6. In a directory (other than the gcc source, say "gcc-build" at the same
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
74 level as the main gcc directory, do (assuming gcc 4.3.4):
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
75
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
76 configure --enable-languages=c --target=m6809-unknown \
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
77 --program-prefix=m6809-unknown- --enable-obsolete \
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
78 --srcdir=../gcc-4.3.4 --disable-threads --disable-nls \
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
79 --disable-libssp --prefix=/usr/local/coco \
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
80 --with-as=/usr/local/coco/bin/m6809-unknown-as \
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
81 --with-ld=/usr/local/coco/bin/m6809-unknown-ld \
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
82 --with-ar=/usr/local/coco/bin/m6809-unknown-ar
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
83
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
84 NOTE: the last three are required to prevent selection of the wrong binutils
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
85 programs at runtime.
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
86
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
87 --with-sysroot might be useful if you have a C library involved.
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
88
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
89 7. Run "make". If errors appear, troubleshoot.
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
90
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
91 8. Run "make install". Note that you will have to have your PATH variable
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
92 for "root" set up correctly if your install prefix requires root privileges.
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
93
84eb35251849 Added extra scripts that can be used to run gcc6809 with lwtools as its binutils
lost@l-w.ca
parents:
diff changeset
94 The above is WOMM certified. YMMV.
396
d0c0fede5021 Update to gcc6809lw patch which may help compilation of some sources
William Astle <lost@l-w.ca>
parents: 340
diff changeset
95
d0c0fede5021 Update to gcc6809lw patch which may help compilation of some sources
William Astle <lost@l-w.ca>
parents: 340
diff changeset
96 NOTES ABOUT SPECIFIC PATCHES
d0c0fede5021 Update to gcc6809lw patch which may help compilation of some sources
William Astle <lost@l-w.ca>
parents: 340
diff changeset
97 ============================
d0c0fede5021 Update to gcc6809lw patch which may help compilation of some sources
William Astle <lost@l-w.ca>
parents: 340
diff changeset
98
418
3832a68d83ef Fix internal compiler error on "var2 = var1 + 1" patterns
William Astle <lost@l-w.ca>
parents: 417
diff changeset
99 Old gcc6809 patches have been removed to avoid confusion.
409
c8ae69cdb5a9 Update gcc6809 patch to work with pragma=newsource
William Astle <lost@l-w.ca>
parents: 396
diff changeset
100
418
3832a68d83ef Fix internal compiler error on "var2 = var1 + 1" patterns
William Astle <lost@l-w.ca>
parents: 417
diff changeset
101 The -6 patch fixes a code generation ICE. The previous -4 patch fixed a code
3832a68d83ef Fix internal compiler error on "var2 = var1 + 1" patterns
William Astle <lost@l-w.ca>
parents: 417
diff changeset
102 generation error that could have a substantial impact. The -3 patch fixed
3832a68d83ef Fix internal compiler error on "var2 = var1 + 1" patterns
William Astle <lost@l-w.ca>
parents: 417
diff changeset
103 some compatibilty with new lwtools versions. The -2 patch fixed a major set
3832a68d83ef Fix internal compiler error on "var2 = var1 + 1" patterns
William Astle <lost@l-w.ca>
parents: 417
diff changeset
104 of ICEs by completely removing the "soft registers" business. They're
3832a68d83ef Fix internal compiler error on "var2 = var1 + 1" patterns
William Astle <lost@l-w.ca>
parents: 417
diff changeset
105 apparently not needed with gcc 4.6.x at all and it's not clear they were
3832a68d83ef Fix internal compiler error on "var2 = var1 + 1" patterns
William Astle <lost@l-w.ca>
parents: 417
diff changeset
106 even needed with gcc 4.3.x. They also had the side effect of causing things
3832a68d83ef Fix internal compiler error on "var2 = var1 + 1" patterns
William Astle <lost@l-w.ca>
parents: 417
diff changeset
107 to break even if they weren't in use so they had to go. In other words, the
3832a68d83ef Fix internal compiler error on "var2 = var1 + 1" patterns
William Astle <lost@l-w.ca>
parents: 417
diff changeset
108 -6 patch is the current best version to use so there's no point including
3832a68d83ef Fix internal compiler error on "var2 = var1 + 1" patterns
William Astle <lost@l-w.ca>
parents: 417
diff changeset
109 the old ones.
416
b4d0eafc5bfe Fix code generation error in gcc6809
William Astle <lost@l-w.ca>
parents: 415
diff changeset
110