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Author SHA1 Message Date
Jan (janneke) Nieuwenhuizen 8c53e22434
ARM: libtcc1: Add support for TinyCC. 
* lib/libtcc1.c: (__udivdi3, __umoddi3, __lshrdi3, __ashldi3,
__fixunsxfdi)[__arm__ && __TINYC__]: Use __mesabi functions.
 2021-01-23 08:43:42 +01:00
Jan (janneke) Nieuwenhuizen 553539ad75
libtcc1: Remove mesabi dependencies for TinyCC. 
* lib/libtcc1.c (__divdi3, __moddi3, __udivdi3, __umoddi3, __lshrdi3,
__ashldi3, __ashrdi3, __floatundixf, __fixunsxfdi, __fixxfdi,
__fixsfdi)[__TINYC__]: No stub printing.
 2021-01-23 08:43:41 +01:00
Jan (janneke) Nieuwenhuizen ddd8349827
mescc: Mes C Library: div: Avoid __raise for TinyCC. 
* lib/mes/div.c (__raise)[__TINYC__]: New macro.
 2021-01-23 08:43:41 +01:00
Jan (janneke) Nieuwenhuizen ede49daabb
mescc: Mes C Library: Add __mesabi_umod, __mesabi_udiv. 
* lib/mes/div.c (__mesabi_umod, __mesabi_udiv): New functions.
* include/mes/lib.h: Add prototypes.
 2021-01-23 08:43:41 +01:00
Danny Milosavljevic c1dcdc5d7e
ARM: Implement long division. 
* lib/mes/div.c (__mesabi_log2i): New procedure.
(__mesabi_uldiv1): New procedure.
(__mesabi_uldiv): Use it.

Co-Authored-By: Nathalie Kopaczewski <natkopa@gmail.com>
 2021-01-23 08:43:41 +01:00
Jan (janneke) Nieuwenhuizen 13b69f4b9b
tests: Add 70-ternary-arithmetic-argument.c. 
* lib/tests/scaffold/70-ternary-arithmetic-argument.c: New file.
* build-aux/check-mescc.sh (tcc_tests, xfail_tests): Add it.
 2021-01-23 08:43:41 +01:00
Danny Milosavljevic 10bcb3709b
ARM: Speed up __mesabi_uldiv for powers-of-two divisors. 
* lib/mes/div.c (__mesabi_uldiv): Speed up division for powers-of-two
divisors.
 2021-01-23 08:43:41 +01:00
Paul Dersey 4492173466
Mes C Library: stdlib/qsort.c: Fix qswap segfault. 
* stdlib/qsort.c (qswap): Remove hard coded buffer size.  Allow
swapping of objects of arbitrary size.
 2021-01-23 08:43:05 +01:00
Jan (janneke) Nieuwenhuizen b601eb64af
mescc: Mes C Library: ntoab: Use unsigned base. 
This fixes 60-math, 60-math-itoa, 70-printf-simple, 70-printf.

* lib/mes/ntoab.c (ntoab): Use unsigned base.
* include/mes/lib.h: Update prototype.
 2020-12-13 22:19:06 +01:00
Jan (janneke) Nieuwenhuizen fa4147a284
mescc: Use signed division for x86, x86_64 when appropriate. 
This fixes 36-compare-arithmetic.c

* module/mescc/i386/as.scm (i386:r0/r1, i386:r0%r1): Do not reset
signed?.
* module/mescc/x86_64/as.scm (x86_64:r0/r1, x86_64:r0%r1): Likewise.
* lib/tests/scaffold/36-compare-arithmetic.c (main): Use unique exit
value per failure.
 2020-10-06 19:53:02 +02:00
Jan (janneke) Nieuwenhuizen 84ff05a839
mescc: Mes C Library: Support gcc-10. 
See <https://lists.gnu.org/archive/html/bug-mes/2020-07/msg00000.html>.

Reported by Vagrant Cascadian <vagrant@reproducible-builds.org>.

* include/setjmp.h (jmp_buf): Remove.
* include/errno.h (errno): Mark extern.
* include/mes/lib-mini.h (environ, errno, __stdin, __stdout, __stderr):
Likewise.
* lib/mes/globals.c: New file; define them.
* build-aux/configure-lib.sh (libc_mini_shared_SOURCES,
libmescc_SOURCES): Add it.
* build-aux/test-c.sh: Always use -l c-mini as a minimum.
 2020-10-06 13:13:44 +02:00
Jan (janneke) Nieuwenhuizen 0650e08744
mescc: Mes C Library: x86_64: Add syscall-internal. 
This resurrects the x86_64 build.

* lib/linux/x86_64-mes-gcc/syscall-internal.c (__sys_call_internal),
lib/linux/x86_64-mes-mescc/syscall-internal.c: New file.
 2020-10-06 10:05:33 +02:00
Jan (janneke) Nieuwenhuizen e16d1e469a
mescc: Mes C Library: x86_64: Introduce __sys_call and friends. 
This prepares for x86_64 syscall-internal.

* lib/linux/x86_64-mes-gcc/syscall.c (__sys_call, __sys_call1,
__sys_call2, __sys_call3, __sys_call4): New functions, copied from ...
(_sys_call, _sys_call1, _sys_call2, _sys_call3, _sys_call4): ... these.
Use them, handle errno only.
 2020-10-06 10:05:33 +02:00
Jan (janneke) Nieuwenhuizen 1c128c7a9f
mescc: Mes C Library: x86: Use long for syscalls. 
The Linux signature uses long, also this allows for making
_sys_call and friends architecture-independent.

* lib/linux/x86-mes-mescc/syscall-internal.c (__sys_call_internal,
__sys_call2_internal): Use long.  Update callers.
* lib/linux/x86-mes-mescc/syscall.c (__sys_call, __sys_call1,
__sys_call2, __sys_call3, __sys_call4, _sys_call, _sys_call1,
_sys_call2, _sys_call3, _sys_call4): Likewise.
 2020-10-06 10:05:33 +02:00
Jan (janneke) Nieuwenhuizen 5f8a424328
mescc: Mes C Library: Remove redundant prototypes. 
* lib/linux/x86-mes-gcc/syscall.c(__sys_call, __sys_call1, __sys_call2,
__sys_call3, __sys_call4): Remove prototype.
 2020-10-06 10:05:33 +02:00
Jan (janneke) Nieuwenhuizen c11a721c36
mescc: Mes C Library: Whitespace fixes. 
* lib/linux/signal.c (signal): Whitespace fixes.
* lib/linux/time.c (time): Likewise.
 2020-10-06 10:04:42 +02:00
Danny Milosavljevic afac5847e7
div: Remove libgcc-compatible API. 
* lib/mes/div.c (__aeabi_idiv): Delete procedure.
(__aeabi_idivmod): Delete procedure.
(__aeabi_uidivmod): Delete procedure.
(__aeabi_uidiv): Delete procedure.
 2020-10-06 10:04:29 +02:00
Danny Milosavljevic 9db916bba1
Revert syscall split (of commit 55d38162be); 
just copy the two syscalls I need for __raise instead.

* lib/linux/arm-mes-gcc/syscall-internal.c (__sys_call_internal): New procedure.
(__sys_call2_internal): New procedure.
(__raise): Use them.
(__sys_call, __sys_call2, __sys_call3, __sys_call4, __sys_call6): Move to...
* lib/linux/arm-mes-gcc/syscall.c: ...here.
* lib/linux/arm-mes-mescc/syscall-internal.c (__sys_call_internal): New procedure.
(__sys_call2_internal): New procedure.
(__raise): Use them.
(__sys_call, __sys_call2, __sys_call3, __sys_call4, __sys_call6): Move to...
* lib/linux/arm-mes-mescc/syscall.c: ...here.
* lib/linux/x86-mes-gcc/syscall-internal.c (__sys_call_internal): New procedure.
(__sys_call2_internal): New procedure.
(__raise): Use them.
(__sys_call, __sys_call2, __sys_call3, __sys_call4, __sys_call6): Move to...
* lib/linux/x86-mes-gcc/syscall.c: ...here.
* lib/linux/x86-mes-mescc/syscall-internal.c (__sys_call_internal): New procedure.
(__sys_call2_internal): New procedure.
(__raise): Use them.
(__sys_call, __sys_call2, __sys_call3, __sys_call4, __sys_call6): Move to...
* lib/linux/x86-mes-mescc/syscall.c: ...here.
 2020-10-06 10:04:29 +02:00
Danny Milosavljevic 3ed3b51371
div: Add comment about __aeabi_idiv. 
* lib/mes/div.c (__aeabi_idiv): Add comment.
 2020-10-06 10:04:29 +02:00
Danny Milosavljevic 95c71f3178
div: Move __aeabi_idiv to __GNUC__; introduce __mesabi_idiv. 
* lib/mes/div.c (__aeabi_idiv): Move for conditional compilation.
(__mesabi_idiv): New procedure.
* module/mescc/armv4/as.scm (armv4:r0/r1): Use __mesabi_idiv.
 2020-10-06 10:04:28 +02:00
Jan (janneke) Nieuwenhuizen 3973e87219
ARM: Add missing instruction. 
* lib/arm-mes/arm.M1: Add missing define.
 2020-10-06 10:04:28 +02:00
Danny Milosavljevic e3aba5d464
test: Make 7l-struct-any-size-array-simple compatible with default ARM gcc. 
* lib/tests/scaffold/7l-struct-any-size-array-simple.c: Make "signed"
explicit in signed char types.
 2020-08-22 21:01:45 +02:00
Danny Milosavljevic 7e23d98494
test: Make 7r-sign-extend compatible with default ARM gcc. 
* lib/tests/scaffold/7r-sign-extend.c: Make "signed" explicit in
signed char types.
 2020-08-22 21:01:36 +02:00
Danny Milosavljevic acf86208ed
ARM: Support comparing 32 bit values. 
* lib/arm-mes/arm.M1 (cmp____$i32,%r0): New macro.
(cmp____$i32,%r1): New macro.
(cmp____$i32,%r2): New macro.
 2020-06-19 02:45:51 +02:00
Danny Milosavljevic d9bda45853
ARM: Handle signed values in r-byte-mem-add, r-word-mem-add. 
* lib/arm-mes/arm.M1 (ldrb___%r0,(%r1)): Delete macro.
(ldrh___%r0,(%r0)): Delete macro.
(ldrsh__%r0,(%r0)): New macro.
(ldrh___%r0,(%r1)): Delete macro.
(ldrsh__%r0,(%r1)): New macro.
(ldrh___%r1,(%r1)): Delete macro.
(ldrsh__%r1,(%r1)): New macro.
(ldrh___%r2,(%r2)): Delete macro.
(ldrsh__%r2,(%r2)): New macro.
(ldrh___%r3,(%r3)): Delete macro.
(ldrsh__%r3,(%r3)): New macro.
(ldrsb__%r0,(%r1)): New macro.
* module/mescc/armv4/as.scm (armv4:r-byte-mem-add): Use ldrsb.
(armv4:r-word-mem-add): Use ldrsh, add____$i32,(%r0).
(armv4:word-mem->r): Use ldrsh.
 2020-06-19 02:45:33 +02:00
Danny Milosavljevic 821d1b8fe9
ntoab: Simplify LONG_MIN case. 
* lib/mes/ntoab.c (ntoab): Simplify LONG_MIN case.

Co-Authored-By: Nathalie Kopaczewski <natkopa@gmail.com>
 2020-06-17 00:21:57 +02:00
Danny Milosavljevic b11510f4da
ntoab: Handle LONG_MIN case. 
* lib/mes/ntoab.c (ntoab): Handle LONG_MIN case.
* lib/tests/scaffold/60-math.c (main): Add test for INT_MIN and hex.
 2020-06-15 11:26:43 +02:00
Danny Milosavljevic 449f3c7e00
Add ARM gcc scaffold assembly. 
* lib/linux/arm-mes-gcc/exit-42.S: New file.
* lib/linux/arm-mes-gcc/hello-mes.S: New file.
 2020-06-13 19:44:29 +02:00
Danny Milosavljevic 6478476ed7
Implement setjmp for ARM mescc. 
* include/setjmp.h: Add ARM case.
* lib/arm-mes-mescc/setjmp.c: New file.
 2020-06-12 23:20:17 +02:00
Danny Milosavljevic 48ecb2f29e
test: Test signed division. 
* lib/tests/scaffold/36-compare-arithmetic.c (main): Test signed division.
 2020-06-10 17:04:55 +02:00
Danny Milosavljevic 3f03574050
ldiv: Work around missing struct return feature. 
* lib/mes/div.c (__mesabi_ldiv): Remove return type.
(__mesabi_imod): Adapt call site.
(__aeabi_idiv): Adapt call site and move it to conditional compilation.
(__aeabi_idivmod): Adapt call site.
 2020-06-10 15:46:12 +02:00
Danny Milosavljevic d42f99e6cf
mescc: Mes C Library: Hang at the end if necessary. 
* lib/linux/arm-mes-mescc/crt1.c (_start): Hang at the end if necessary.
 2020-06-10 13:14:33 +02:00
Danny Milosavljevic 040220acee
Add ARM backend. 
* build-aux/build-guile.sh: Add ARM backend.
* lib/arm-mes/arm.M1: New file.
* module/mescc/armv4/as.scm: New file.
* module/mescc/armv4/info.scm: New file.
* module/mescc/mescc.scm: Use it.
* module/mescc/M1.scm (info->M1): Support ARM symbolic instructions,
including little endian instructions.  Align functions.
 2020-06-10 13:11:07 +02:00
Jan Nieuwenhuizen 80419817e6
ARM: Mes C Library: Support gcc-sans-libc. 
* lib/linux/arm-mes-gcc/crt1.c: New file.
* lib/linux/arm-mes-gcc/mini.c: New file.
* lib/arm-mes-gcc/setjmp.c: New file.

Co-Authored-By: Danny Milosavljevic <dannym@scratchpost.org>
 2020-06-04 21:59:30 +02:00
Danny Milosavljevic b0347bf53d
ntoab: Make sure not to get stuck on base 1. 
* lib/mes/ntoab.c (ntoab): Make sure not to get stuck on base 1.
 2020-06-03 20:56:51 +02:00
Danny Milosavljevic 1f47a76e7a
mescc: Mes C Library: Add crt1, mini. 
* lib/linux/arm-mes-mescc/crt1.c: New file.
* lib/linux/arm-mes-mescc/mini.c: New file.
 2020-06-03 20:46:41 +02:00
Danny Milosavljevic 85e690ea64
ARM: Mes C Library: Add comment. 
* lib/linux/time.c: Add comment.
 2020-06-03 11:24:03 +02:00
Jan Nieuwenhuizen be1ff7e625
ARM: Mes C Library: Add compile stub for time. 
* lib/linux/time.c (time)[SYS_gettimeofday]: Implement using gettimeofday.
(time)[!SYS_time && !SYS_gettimeofday]: Compile stub.
 2020-06-03 10:41:37 +02:00
Danny Milosavljevic a944400112
waitpid: Support ARM. 
* lib/linux/waitpid.c (waitpid): Support ARM.
 2020-06-03 00:55:07 +02:00
Danny Milosavljevic 65013db594
Add ARM linker support files. 
* lib/linux/arm-mes/elf32-0exit-42.hex2,
lib/linux/arm-mes/elf32-0header.hex2,
lib/linux/arm-mes/elf32-0hello-mes.hex2,
lib/linux/arm-mes/elf32-body-exit-42.hex2,
lib/linux/arm-mes/elf32-body-hello-mes.hex2,
lib/linux/arm-mes/elf32-footer-single-main.hex2,
lib/linux/arm-mes/elf32-header.hex2: New files.
 2020-06-02 20:27:52 +02:00
Danny Milosavljevic 4775de0021
Raise SIGABRT on abort(). 
* lib/stdlib/abort.c (abort): Raise SIGABRT.
 2020-06-02 15:05:12 +02:00
Danny Milosavljevic 55d38162be
Introduce libmescc.a; Put division by integer in there; split syscalls' errno off. 
* build-aux/configure-lib.sh (libmescc_SOURCES): Add lib/mes/div.c,
lib/linux/*/syscall-internal.c.
* build-aux/build-lib.sh: Add libmescc.a.
* build-aux/build-mes.sh: On gcc, add "-lmescc".
* build-aux/test-c.sh: Add "-lmescc".
* build-aux/check.sh.in: Add mescc to LIBS.
* module/mescc/mescc.scm (mescc:link): Add "mescc".
* module/mescc.scm (mescc:main): Update documentation of "-nodefaultlibs"
and "-nostdlib".
* lib/mes/div.c (ldiv): Rename to...
(__mesabi_ldiv): ...this.  Avoid assert.
(__mesabi_div0): Avoid assert.
(__aeabi_idivmod): New procedure.
(__aeabi_idiv): New procedure.
(__aeabi_uidivmod): New procedure.
(__aeabi_uidiv): New procedure.
* lib/linux/x86-mes-gcc/syscall.c (__sys_call, __sys_call1, __sys_call2,
__sys_call3, __sys_call4): Move to...
* lib/linux/x86-mes-gcc/syscall-internal.c: ...here.
(__raise): New procedure.
* lib/linux/x86-mes-mescc/syscall.c (__sys_call, __sys_call1, __sys_call2,
__sys_call3, __sys_call4): Move to...
* lib/linux/x86-mes-mescc/syscall-internal.c: ...here.
(__raise): New procedure.
* lib/linux/arm-mes-gcc/syscall.c: New file.
* lib/linux/arm-mes-gcc/syscall-internal.c: New file.
* lib/linux/arm-mes-mescc/syscall.c: New file.
* lib/linux/arm-mes-mescc/syscall-internal.c: New file.
* lib/gnu/syscall.c (__syscall, __syscall2, __syscall_get, __syscall_put):
Move to...
* lib/gnu/syscall-internal.c: ...here.
 2020-06-02 15:04:13 +02:00
Danny Milosavljevic fbc249832c
Prepare tests for ARMv4. 
* lib/tests/io/90-stat.c,
lib/tests/scaffold/76-pointer-arithmetic.c,
lib/tests/scaffold/7k-for-each-elem.c,
lib/tests/scaffold/85-sizeof.c: Prepare tests for ARMv4.
 2020-06-02 14:30:02 +02:00
Jan Nieuwenhuizen d8fca8321e
mescc: Mes C Library: Fix execlp, execvp for file names with slash. 
Reported by mid-kid.

* lib/posix/execlp.c (execlp): Do not use search_path when file name
contains a slash (WAS: when file name starts with slash).
* lib/posix/execvp.c (execvp): Likewise.
 2020-01-20 22:47:52 +01:00
Jan Nieuwenhuizen 3abd3e0bcc
mescc: Mes C Library: lseek: Be careful clearing read buffer. 
* lib/linux/lseek.c (_lseek): New function.
* lib/linux/lseek.c (lseek): Use it to check if we should reset read
buffer.
* lib/mes/__buffered_read.c (__read_buffer_max): New variable.
(__buffered_read_init): Add environment override: MES_READ_BUFFER.
(__buffered_read): Use it.
 2020-01-20 22:47:52 +01:00
Jan Nieuwenhuizen ec9aecea07
freebsd: Initial x86 scaffold. 
* lib/freebsd/x86-mes-gcc/crt1.c: New file.
* lib/freebsd/x86-mes-gcc/exit-42.S: New file.
* lib/freebsd/x86-mes-gcc/hello-mes.S: New file.
* lib/freebsd/x86-mes-gcc/mini.c: New file.
* lib/freebsd/x86-mes-mescc/crt1.c: New file.
* lib/freebsd/x86-mes-mescc/mini.c: New file.
* lib/freebsd/x86-mes/elf32-0exit-42.hex2: New file.
* lib/freebsd/x86-mes/elf32-0header.hex2: New file.
* lib/freebsd/x86-mes/elf32-0hello-mes.hex2: New file.
* lib/freebsd/x86-mes/elf32-body-exit-42.hex2: New file.
* lib/freebsd/x86-mes/elf32-body-hello-mes.hex2: New file.
* lib/freebsd/x86-mes/elf32-footer-single-main.hex2: New file.
* lib/freebsd/x86-mes/elf32-header.hex2: New file.
 2019-12-17 21:08:18 +01:00
Jan Nieuwenhuizen 34106fc420
build: Prepare for kernel variants. 
* configure: Fix detection of Arch, FreeBSD.
* lib/linux/x86-mes-gcc/exit-42.S: Move from ...
* lib/x86-mes-gcc/exit-42.S: ... here.
* lib/linux/x86-mes-gcc/hello-mes.S: Move from ...
* lib/x86-mes-gcc/hello-mes.S: ... here.
* lib/linux/x86-mes-mescc/exit-42.S: Move from ...
* lib/x86-mes-mescc/exit-42.S: ... here.
* lib/linux/x86-mes-mescc/hello-mes.S: Move from ...
* lib/x86-mes-mescc/hello-mes.S: ... here.
* lib/linux/x86-mes/elf32-0exit-42.hex2: Move from ...
* lib/x86-mes/elf32-0exit-42.hex2: ... here.
* lib/linux/x86-mes/elf32-0header.hex2: Move from ...
* lib/x86-mes/elf32-0header.hex2: ... here.
* lib/linux/x86-mes/elf32-0hello-mes.hex2: Move from ...
* lib/x86-mes/elf32-0hello-mes.hex2: ... here.
* lib/linux/x86-mes/elf32-body-exit-42.hex2: Move from ...
* lib/x86-mes/elf32-body-exit-42.hex2: ... here.
* lib/linux/x86-mes/elf32-body-hello-mes.hex2: Move from ...
* lib/x86-mes/elf32-body-hello-mes.hex2: ... here.
* lib/linux/x86-mes/elf32-footer-single-main.hex2: Move from ...
* lib/x86-mes/elf32-footer-single-main.hex2: ... here.
* lib/linux/x86-mes/elf32-header.hex2: Move from ...
* lib/x86-mes/elf32-header.hex2: ... here.
* lib/linux/x86_64-mes-gcc/exit-42.S: Move from ...
* lib/x86_64-mes-gcc/exit-42.S: ... here.
* lib/linux/x86_64-mes-gcc/hello-mes.S: Move from ...
* lib/x86_64-mes-gcc/hello-mes.S: ... here.
* lib/linux/x86_64-mes-mescc/exit-42.S: Move from ...
* lib/x86_64-mes-mescc/exit-42.S: ... here.
* lib/linux/x86_64-mes-mescc/hello-mes.S: Move from ...
* lib/x86_64-mes-mescc/hello-mes.S: ... here.
* lib/linux/x86_64-mes/elf64-0exit-42.hex2: Move from ...
* lib/x86_64-mes/elf64-0exit-42.hex2: ... here.
* lib/linux/x86_64-mes/elf64-0header.hex2: Move from ...
* lib/x86_64-mes/elf64-0header.hex2: ... here.
* lib/linux/x86_64-mes/elf64-0hello-mes.hex2: Move from ...
* lib/x86_64-mes/elf64-0hello-mes.hex2: ... here.
* lib/linux/x86_64-mes/elf64-body-exit-42.hex2: Move from ...
* lib/x86_64-mes/elf64-body-exit-42.hex2: ... here.
* lib/linux/x86_64-mes/elf64-body-hello-mes.hex2: Move from ...
* lib/x86_64-mes/elf64-body-hello-mes.hex2: ... here.
* lib/linux/x86_64-mes/elf64-footer-single-main.hex2: Move from ...
* lib/x86_64-mes/elf64-footer-single-main.hex2: ... here.
* lib/linux/x86_64-mes/elf64-header.hex2: Move from ...
* lib/x86_64-mes/elf64-header.hex2: ... here.
* module/mescc.scm (parse-opts): Support --kernel.
* module/mescc/mescc.scm (kernel-find): New function.
* module/mescc/mescc.scm (hex2->elf): Use it to find kernel-specific ELF
snippets.
* build-aux/install.sh.in: Install it.
 2019-12-17 21:07:35 +01:00
Jan Nieuwenhuizen c673c9d303
mescc: Mes C Library: Add ioctl3 stub. 2019-12-13 21:52:31 +01:00
Jan Nieuwenhuizen f5bf3f4cf6
mescc: Mes C Library: Fix access stub. 
* lib/stub/access.c (access): Use _open3 to give more meaningful
behaviour.  Fixes hanging of mes.
 2019-12-13 21:52:31 +01:00
Jan Nieuwenhuizen 7c6da0c213
hurd: Fixes for upgrade to debian-hurd-20190220.img. 
* include/mach/mach-init.h (__mach_host_self, __mach_task_self):
Remove macro magic.
(mach_host_self, mach_task_self): Remove macro magic; declare as function.
* lib/mach/mach-init.c (mach_host_self, mach_task_self): New function.
(mach_init): Use them.
* lib/gnu/hurd-start.c (_hurd_start): Use mach_task_self ().
* lib/gnu/_exit.c (_exit): Likewise.
 2019-12-13 21:52:31 +01:00