Add patches for TinyCC

This commit is contained in:
Ziyao 2022-04-03 10:27:48 +08:00
parent 5013f777b5
commit 79593d5689
2 changed files with 42 additions and 2 deletions

10
README
View File

@ -8,7 +8,7 @@ still missing,including:
- Full GNU-style inline assembly support.
The original versions of __syscall4(),__syscall5() and __syscall6()
don't work.They are replaced by assembly implemention in
/src/unistd/x86_64/syscall.S
/src/internal/x86_64/syscall.S
- math library is removed momently.
Because some missing floating-point features of TinyCC.I am working
on completing.
@ -25,6 +25,12 @@ To compile,simply run
./configure --target=x86_64 # The script cannot detect the
# platform with tcc because of
# missing option "-dumpmachine"
make
make # I finish my compiling in 10s with
two threads on i7-720QM @ 1.60GHz
All modified and addtional files are under MIT License as well.
Some changes are made to my TinyCC (This means I may have a different
version from yours,so if you fail to compile,try to apply the patches
listed in /tcc-patch/,including:
- empty_archive.patch
Enables TinyCC to generate empty ar archive

View File

@ -0,0 +1,34 @@
diff --git a/tcctools.c b/tcctools.c
index 4567b81..7c643dc 100644
--- a/tcctools.c
+++ b/tcctools.c
@@ -61,7 +61,7 @@ static int contains_any(const char *s, const char *list) {
}
static int ar_usage(int ret) {
- fprintf(stderr, "usage: tcc -ar [rcsv] lib file...\n");
+ fprintf(stderr, "usage: tcc -ar [rcsv] lib [file...]\n");
fprintf(stderr, "create library ([abdioptxN] not supported).\n");
return ret;
}
@@ -115,8 +115,9 @@ ST_FUNC int tcc_tool_ar(TCCState *s1, int argc, char **argv)
}
}
- if (!i_obj) // i_obj implies also i_lib. we require both.
+ if (!i_lib) // i_obj implies also i_lib.
ret = 1;
+ i_obj = i_obj ? i_obj : argc; // An empty archive will be generated if no input file is given
if (ret == 1)
return ar_usage(ret);
@@ -242,6 +243,9 @@ ST_FUNC int tcc_tool_ar(TCCState *s1, int argc, char **argv)
hofs++, fpos = 1;
// write header
fwrite("!<arch>\n", 8, 1, fh);
+ // create an empty archive
+ if (!funccnt)
+ goto the_end;
sprintf(stmp, "%-10d", (int)(strpos + (funccnt+1) * sizeof(int)));
memcpy(&arhdr.ar_size, stmp, 10);
fwrite(&arhdr, sizeof(arhdr), 1, fh);