| Commit message (Expand) | Author | Age | Files | Lines |
|---|
| * | protect against long double type mismatches (mainly powerpc for now)•••check in configure to be polite (failing early if we're going to fail)
and in vfprintf.c since that is the point at which a mismatching type
would be extremely dangerous.
| Rich Felker | 2013-08-02 | 1 | -0/+21 |
| * | work around gcc 4.8's generation of self-referential mem* functions at -O3 | Rich Felker | 2013-08-01 | 1 | -0/+10 |
| * | do not include math modules in the default -O3 optimization set•••it's not clear that -O3 helps them, and gcc seems to have floating
point optimization bugs that introduce additional failures when -O3 is
used on some of these files.
| Rich Felker | 2013-07-24 | 1 | -1/+1 |
| * | enhance build process to allow selective -O3 optimization•••the motivation for this patch is that the vast majority of libc is
code that does not benefit at all from optimizations, but that certain
components like string/memory operations can be major performance
bottlenecks.
at the same time, the old -falign-*=1 options are removed, since they
were only beneficial for avoiding bloat when global -O3 was used, and
in that case, they may have prevented some of the performance gains.
to be the most useful, this patch will need further tuning. in
particular, research is needed to determine which components should be
built with -O3 by default, and it may be desirable to remove the
hard-coded -O3 and instead allow more customization of the
optimization level used for selected modules.
| Rich Felker | 2013-07-22 | 1 | -12/+54 |
| * | fix invalid C in new trycppif tests in configure script•••an empty program is not valid and would be reasonable grounds for the
compiler to give an error, which would break these tests.
| Rich Felker | 2013-07-18 | 1 | -1/+2 |
| * | add build system support for arch endian & float abi variants | Rich Felker | 2013-07-18 | 1 | -0/+32 |
| * | treat invalid C as an error even if warnings aren't enabled. | Rich Felker | 2012-12-11 | 1 | -1/+11 |
| * | fix error in configure script using >/dev/null in noclobber mode | Rich Felker | 2012-11-18 | 1 | -1/+1 |
| * | Merge remote-tracking branch 'ppc-port/ppc-squashed' | Rich Felker | 2012-11-14 | 1 | -0/+1 |
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| | * | PPC port cleaned up, static linking works well now. | rofl0r | 2012-11-13 | 1 | -0/+1 |
| * | | fix "configure --prefix=" and improve path/arg handling in configure•••previously, empty string was treated as "use default". this is
apparently not compatible with standard configure semantics where an
empty prefix puts everything under /. the new logic should be a lot
cleaner and not suffer from such issues.
| Rich Felker | 2012-11-08 | 1 | -16/+12 |
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| * | further pcc fixes in configure•••-lpcc only works if -nostdlib is not passed, so it's useless. instead,
use -print-file-name to look up the full pathname for libpcc.a, and
check whether that succeeds before trying to link with the result.
also, silence pcc's junk printed on stdout during tests.
| Rich Felker | 2012-10-26 | 1 | -3/+4 |
| * | add support for detecting pcc's compiler runtime•••in old versions of pcc, the directory containing libpcc.a was not in
the library path, and other options like -print-file-name may have
been needed to locate it. however, -print-file-name itself seems to
have been added around the same time that the directory was added to
the search path, and moreover, I see no evidence that older versions
of pcc are capable of building a working musl shared library. thus, it
seems reasonable to just test whether -lpcc is accepted.
| Rich Felker | 2012-10-26 | 1 | -0/+1 |
| * | configure: test not just compiling but linking with -march/-mtune•••pcc wrongly passes any option beginning with -m to the linker, and
will break at link time if these options were added to CFLAGS. testing
linking lets us catch this at configure time and skip them.
| Rich Felker | 2012-10-25 | 1 | -2/+2 |
| * | use $CC rather than "$CC" in configure script•••this is necessary to allow $CC with arguments in it
| Rich Felker | 2012-10-18 | 1 | -4/+4 |
| * | tell the assembler to mark all files as not requiring executable stack•••for some reason this option is undocumented. not sure when it was
added, so I'm using a configure test. gcc was already setting the mark
correctly for C files, but assembler source files would need ugly
.note boilerplate in every single file to achieve this without the
option to the assembler.
blame whoever thought it would be a good idea to make the stack
executable by default rather than doing it the other way around...
| Rich Felker | 2012-10-03 | 1 | -0/+7 |
| * | microblaze port•••based on initial work by rdp, with heavy modifications. some features
including threads are untested because qemu app-level emulation seems
to be broken and I do not have a proper system image for testing.
| Rich Felker | 2012-09-29 | 1 | -0/+1 |
| * | add LIBCC (compiler runtime) logic and override to configure•••this should both fix the issue with ARM needing -lgcc_eh (although
that's really a bug in the libgcc build process that's causing
considerable bloat, which should be fixed) and make it easier to build
musl using clang/llvm in place of gcc. unfortunately I don't know a
good way to detect and support pcc's -lpcc since it's not in pcc's
default library search path...
| Rich Felker | 2012-09-10 | 1 | -0/+7 |
| * | get rid of eh_frame bloat•••if needed for debugging, it will be output in the .debug_frame section
instead, where it is not part of the loaded program and where the
strip command is free to strip it.
| Rich Felker | 2012-08-29 | 1 | -3/+12 |
| * | add gnu hash support in the dynamic linker•••based on the patches contributed by boris brezillon.
| Rich Felker | 2012-08-25 | 1 | -1/+1 |
| * | support configuring cross compiling with CROSS_COMPILE prefix variable | Rich Felker | 2012-08-14 | 1 | -3/+6 |
| * | make configure accept mipsel | Rich Felker | 2012-08-05 | 1 | -1/+1 |
| * | remove configure check disabling shared libraries on mips | Rich Felker | 2012-08-05 | 1 | -4/+0 |
| * | disable dynamic linking on mips for now (broken) | Rich Felker | 2012-07-12 | 1 | -0/+5 |
| * | initial version of mips (o32) port, based on work by Richard Pennington (rdp)•••basically, this version of the code was obtained by starting with
rdp's work from his ellcc source tree, adapting it to musl's build
system and coding style, auditing the bits headers for discrepencies
with kernel definitions or glibc/LSB ABI or large file issues, fixing
up incompatibility with the old binutils from aboriginal linux, and
adding some new special cases to deal with the oddities of sigaction
and pipe syscall interfaces on mips.
at present, minimal test programs work, but some interfaces are broken
or missing. threaded programs probably will not link.
| Rich Felker | 2012-07-11 | 1 | -0/+1 |
| * | configure: only use -ffloat-store on i386•••this option is expensive and only used on old gcc's that lack
-fexcess-precision=standed, but it's not needed on non-i386 archs
where floating point does not have excess precision anyway.
if musl ever supports m68k, i think it will need to be special-cased
too. i'm not aware of any other archs with excess precision.
| Rich Felker | 2012-07-03 | 1 | -1/+1 |
| * | check for ld support of -Bsymbolic-functions; disable shared if not avail•••this issue affects the last gpl2 version of binutils, which some
people are still using out of aversion to gpl3. musl requires
-Bsymbolic-functions because it's the only way to make a libc.so
that's able to operate prior to dynamic linking but that still behaves
correctly with respect to global vars that may be moved to the main
program via copy relocations.
| Rich Felker | 2012-06-07 | 1 | -0/+7 |
| * | use -nostdlib in linker tests to avoid possible missing crt/lib issues | Rich Felker | 2012-06-07 | 1 | -1/+1 |
| * | avoid linking main program in linker tests•••it's possible that the user has provided a compiler that does not have
any libc to link to, so linking a main program is a bad idea. instead,
generate an empty shared library with no dependencies.
| Rich Felker | 2012-06-07 | 1 | -2/+2 |
| * | make configure try to disable stack protector•••in theory we could support stack protector in the libc itself, and
users wanting to experiment with such usage could add
-fstack-protector to CFLAGS intentionally. but to avoid breakage in
the default case, override broken distro-patched gcc that forces stack
protector on.
| Rich Felker | 2012-06-06 | 1 | -0/+2 |
| * | add configure check for gnu linker hash style setting•••some broken distro-provided toolchains have modified gcc to produce
only "gnu hash" dynamic hash table by default. as this is unsupported
by musl, that results in a non-working libc.so. we detect and switch
this on in configure rather than hard-coding it in the Makefile
because it's not supported by old binutils versions, but that might
not even be relevant since old binutils versions already fail from
-Bsymbolic-functions being missing. at some point I may review whether
this should just go in the Makefile...
| Rich Felker | 2012-06-06 | 1 | -1/+20 |
| * | fix configure build/host/target terminology usage | Rich Felker | 2012-06-03 | 1 | -13/+14 |
| * | yet another try to get the check for gcc right... | Rich Felker | 2012-05-14 | 1 | -1/+1 |
| * | fix error in last configure change (lack of escaping) | Rich Felker | 2012-05-14 | 1 | -1/+1 |
| * | correct the check for gcc (previous version failed for cross compilers) | Rich Felker | 2012-05-13 | 1 | -1/+1 |
| * | add -frounding-math to build | Rich Felker | 2012-05-05 | 1 | -0/+1 |
| * | initial commit of configure script•••this script is not based on autoconf; however it attempts to follow
the same interface contracts for ease of integration with build
systems. it is also not necessary to use musl. manually written
config.mak files are still supported, as is building without any
config.mak at all as long as you are happy with the default options
and you supply at least ARCH on the command line to make.
| Rich Felker | 2012-05-04 | 1 | -0/+275 |
