Commit Graph

49 Commits

Author SHA1 Message Date
Lephenixnoir dcaf203f46
stdio: improve printf extension API and type size support 2021-06-08 10:32:08 +02:00
Lephenixnoir 009a2eef6e
stdlib: add TinyMT-based rand, and malloc/etc for gint 2021-06-07 22:00:41 +02:00
Lephenixnoir 625a6af459
stdio: add asprintf and vasprintf 2021-06-07 19:09:55 +02:00
Lephenixnoir f52e0923bc
stdio: move the printf implementation from gint 2021-06-07 18:57:11 +02:00
Lephenixnoir cd7fe7a329
signal: simple implementation (DONE)
This version of signal (which does not rely on a notion of userland
processes and is thus excluded from Vhex) follows C99 semantics but does
not generate any signals by default.

Basically, the signal function sets up function pointers and the signal
function calls them. Termination signals call exit() while other signals
call _Exit(), which is a quicker program termination similar to abort().

C99 allows programs to long jump out of signal handlers (!) which is
unbelievably scary because it would bypass stack switching code in Vhex
as well as normal interrupt handler termination in gint.
2021-05-30 15:09:33 +02:00
Lephenixnoir 04e910441a
cmake: fix install dirs reversing at second build 2021-05-30 00:03:21 +02:00
Lephenixnoir 4b90740d3b
stdlib: add exit() based on target-provided _Exit()
This is implemented for gint only currently; on Vhex, _Exit() is likely
just going to be a syscall. For CASIOWIN, this is slightly more
difficult, as there is no native exit syscall.
2021-05-29 16:45:35 +02:00
Lephenixnoir e6d2aa0638
cmake: default to compiler install with gint, and GiteaPC support 2021-05-25 21:55:51 +02:00
Lephenixnoir 412d0f5623
cmake: set minimum version to 3.15 2021-05-25 21:31:50 +02:00
Lephenixnoir 1e7e2c656b
string: add and test strtok (DONE) 2021-05-24 10:25:32 +02:00
Lephenixnoir df9073e6ff
string: add and test str[n]casecmp and KMP str[case]str (DONE) 2021-05-24 10:04:54 +02:00
Lephenixnoir 8ffc104798
string: add and test strpbrk (DONE) 2021-05-23 18:11:12 +02:00
Lephenixnoir d105b1d60a
string: add stubs for strcoll and strxfrm (TEST)
These extend the stub locale; strcoll is simply strcmp and strxfrm is
simply strncpy.
2021-05-23 18:07:36 +02:00
Lephenixnoir cda27ac2db
string: add and test strspn and strcspn (DONE) 2021-05-23 18:02:38 +02:00
Lephenixnoir 8368ba70fd
string: split and fix strdup and strndup (DONE) 2021-05-23 17:58:04 +02:00
Lephenixnoir b78cec4f6d
string: add and test strerror (DONE) 2021-05-23 17:44:37 +02:00
Lephenixnoir 3792bbd9d1
string: split strcat and strncat (DONE) 2021-05-23 17:28:48 +02:00
Lephenixnoir 5d345b8da2
string: split and fix strcpy and strncpy (DONE) 2021-05-23 17:28:20 +02:00
Lephenixnoir d5ef8298ae
string: split strcmp and strncmp (DONE) 2021-05-23 17:27:58 +02:00
Lephenixnoir ab8bcc6928
string: use gint's (not-so-optimized-yet) memmove (DONE) 2021-05-23 16:52:39 +02:00
Lephenixnoir fd0d67191c
string: add memchr, memcmp, memmove for non-SuperH (TEST) 2021-05-23 16:52:39 +02:00
Lephenixnoir 5cfd2a7d85
string: use gint's optimized memcmp (DONE) 2021-05-23 16:52:35 +02:00
Lephenixnoir a354e38ccf
string: use gint's optimized memcpy (DONE) 2021-05-23 16:52:33 +02:00
Lephenixnoir b69e0fd299
string: use gint's optimized memset (DONE) 2021-05-23 16:52:29 +02:00
Lephenixnoir bd344d5bb2
string: split strchr, strchrnul and strrchr (TEST) 2021-05-23 16:07:01 +02:00
Lephenixnoir 6021c536f7
string: split strnlen, optimize strlen in assembler (DONE)
This change provides an optimized hand-written strlen function for
SuperH targets. The original plan was to declare the C-based naive
version weak and just let the linker figure out the proper one to use,
but unfortunately static libraries don't work like that; ld
intentionally stops at the first version even if it's weak. Instead,
some #ifdef's are used in the C-based strlen to not compile it when
unneeded.

The optimized strlen uses 4-byte accesses and cmp/str.
2021-05-23 16:00:12 +02:00
Lephenixnoir 591e453717
sh-generic: add CPU capabilities for optimized SH4 code
On sh-generic targets, the headers <bits/cpucap.h> (in C) and
<bits/asm/cpucap.h> (in assembler) provide definitions to acces the
__cpucap symbol which provides information on the CPU.

Currently, a single capability __CPUCAP_SH4ALDSP is defined; it
represents the SH4 extended instructions together with the integrated
DSP instructions. The main uses of this capability are [movua.l]
(unaligned reads) and [ldrc] (built-in tight loops).

Capabilities are initialized to 0 (their safest default) and the runtime
can enable them based on what hardware is running.
2021-05-23 15:31:01 +02:00
Lephenixnoir 24c6873429
cmake: fix include bits/ not being installed
The file(EXISTS) command needs absolute paths.
2021-05-23 15:27:10 +02:00
Lephenixnoir d6f606fa5c
string: add and test an optimized memchr (DONE)
This version works on both SH3 and SH4.
2021-05-23 14:30:35 +02:00
Lephenixnoir f5cca84ae8
stdlib: add and test strtod, strtof and atof (DONE)
This uses a generic function strto_fp similar to strto_int that is used
for strtol and its derivatives.
2021-05-21 23:56:35 +02:00
Lephenixnoir efb37cf783
stdlib: add and test strtold (DONE)
The method is rather naive - digits read as an integer, then multipled
by a power of 10 or 2. This does not always give exact results, but it's
close enough for now. A stub support for long double larger than 64 bits
is provided.
2021-05-21 22:49:55 +02:00
Lephenixnoir cc03641522
inttypes: add strtoimax and strtoumax 2021-05-20 16:05:20 +02:00
Lephenixnoir 9de2f5c391
math, fenv, complex: add headers through OpenLibm 2021-05-20 11:35:14 +02:00
Lephenixnoir 99339ae9f4
cmake: add arch-specific support flags 2021-05-20 11:35:14 +02:00
Lephenixnoir ade01b532e
stdlib: add atoi, atol and atoll 2021-05-20 11:35:14 +02:00
Lephenixnoir 06f975f75c
stdlib: add a test strtol, strtoul, strtoll (DONE)
The presumed bug where the value computed without the sign overflows
even though the negative result can be represented is not actually a
problem, because this only happens with signed results and the temporary
value is computed as unsigned (thus with extra range).
2021-05-20 11:03:19 +02:00
Lephenixnoir 5042236392
stdlib: reword strtoull into a generic strto_int
This new function will support strtol, strtoul, and strtoll as well.
2021-05-20 09:23:06 +02:00
Lephenixnoir b1dc3e77de
stdlib: add and test strtoull (DONE) 2021-05-19 21:50:08 +02:00
Lephenixnoir 36b4854137
inttypes: add imaxabs and imaxdiv (TEST) 2021-05-18 21:31:00 +02:00
Lephenixnoir 73b536bbb6
stdlib: add abs, labs, llabs, div, ldiv, lldiv (TEST) 2021-05-18 21:25:45 +02:00
Lephenixnoir 5f48a6b4e0
errno: add the errno variable and base macros
A <bits/errno.h> file will likely by added later on for each target to
add more specific values.
2021-05-16 18:12:46 +02:00
Lephenixnoir c87805ef10
ctype: add a simple implementation for the "C" locale (TEST) 2021-05-16 18:12:45 +02:00
Lephenixnoir fdf32aeb97
locale: add a stub that supports only the "C" locale (TEST)
This is enough to support the standard and likely the C++ library and
external programs to port, but also the most we can do without a proper
locale data storage and more target-specific developments that aren't a
priority right now.
2021-05-16 18:12:45 +02:00
Lephenixnoir 676601b894
assert: add a partial assert implementation (LDEPS)
This currently does not link because fprintf, stderr and abort are
missing on most platforms. But the code is there.
2021-05-16 18:12:45 +02:00
Lephenixnoir 4933d9c19f
cmake: remove unneeded separators in install paths 2021-05-16 18:01:21 +02:00
Lephenixnoir 6275b3e73b
move bits/unistd_32.h to bits/asm on all targets
Only Vhex had it at the correct place previously.
2021-05-11 09:22:34 +02:00
Lephenixnoir e719af2f63
update include hierarchy 2021-05-09 17:59:07 +02:00
Lephenixnoir 8993049f4e
update README and CMake install rules 2021-05-09 17:52:07 +02:00
Lephenixnoir ad9f92873b
new build system and source file hierarchy 2021-05-09 14:56:08 +02:00