summaryrefslogtreecommitdiff
path: root/libc
AgeCommit message (Collapse)Author
2015-10-09add new architecture support for or1kWaldemar Brodkorb
Information about Openrisc: http://opencores.org/or1k/Main_Page Integrated from: https://github.com/openrisc/uClibc-or1k
2015-10-08xtensa: support call0 ABIMax Filippov
Most changes are mechanical replacement of 'retw' instruction with 'abi_ret' macro, defined to 'retw' or 'ret' according to ABI. Assembly code that makes calls is duplicated for call0 ABI with changed register numbers for parameters/return value and call instruction. 'entry' instructions are replaced with 'abi_entry' macro. More interesting changes: - non-leaf assembly functions (e.g. _dl_tlsdesc_dynamic, _dl_linux_resolve, SYSCALL_ERROR_HANDLER, PSEUDO) now need to preserve registers around intermediate calls they make, use temporary stack frame for that; - setjmp/longjmp only need to save and restore return address, stack pointer and callee-saved registers in the jmpbuf; - __clone and syscall functions had hardcoded offsets to parameter passed on stack, on call0 ABI they don't need stack frame, so the offset is different. Replace these offsets with FRAMESIZE macro. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2015-10-05libc: posix_fallocate must return an error number on failureYuriy Kolerov
posix_fallocate implementation in uClibc relies on fallocate system call - it just returns what fallocate returns. However fallocate returns -1 on failure and assigns an error number to errno variable. In the same time posix_fallocate must return an error number but not -1. What does this patch: if fallocate returns -1 then posix_fallocate returns errno. Otherwise posix_fallocate returns 0 on success. However there is a side effect - posix_fallocate sets errno on failure because fallocate does it. But POSIX does not forbid it thus it's not a problem. Signed-off-by: Yuriy Kolerov <yuriy.kolerov@synopsys.com>
2015-10-05libc: fix sign extension in fallocate()Yuriy Kolerov
For common generic syscall ABI fallocate syscall handler in kernel expects a 64-bit signed arguments for offset and len. However uClibc has 2 wrappers for this syscall: fallocate and fallocate64. On 32-bit machines fallocate (not fallocate64) expects 32-bit values of offset and len. Thus in this case uClibc's fallocate must pass to the syscall those values with sign extension. High word of 64-bit value must be 0 or 0xFFFFFFFF depending on sign of the original 32-bit value (offset or len). It is how sign extansion works - all high bits of the negative value must be 1. So on 32-bit machines uClibc's fallocate does sign extension incorrectly when 32-bit values are passed (offset or len). It just fills the second word of 64-bit value by zeros. E.g. fallocate works incorrectly when offset or length is negative value - in this case kernel thinks that positive values are passed. Solution is to call fallocate64 from fallocate and pass 32-bit values of offset and len to fallocate64. off_t type is automatically converted to off64_t with an appropriate sign extension. Then fallocate64 invokes kernel's system call properly. This error is detected in LTP's test kernel/syscalls/fallocate02: ----------->8---------- fallocate(..., 1, -1024, 1024) failed, expected errno:22: TEST_ERRNO=0 fallocate(..., 1, 1024, -1024) failed, expected errno:22: TEST_ERRNO=0 fallocate(..., 1, 12288, -1024) failed, expected errno:22: TEST_ERRNO=0 fallocate(..., 1, -24576, 1024) failed, expected errno:22: TEST_ERRNO=0 ----------->8---------- fallocate does not emit an error because negative values are passed to the kernel without sign extension and kernel thinks that it got valid positive values. Signed-off-by: Yuriy Kolerov <yuriy.kolerov@synopsys.com>
2015-10-05libc: fix setting return value and errno in fallocate()Yuriy Kolerov
fallocate system call must return 0 on success. On error, -1 is returned and errno is set to indicate the error. However there is an error in fallocate which is fixed by this patch - it does not set errno and returns invalid value on error (it returns error code instead of -1). This error is detected in LTP's test kernel/syscalls/fallocate02: ----------->8---------- fallocate(..., 1, 0, 1024) failed, expected errno:9: TEST_ERRNO=0 fallocate(..., 1, -1024, 1024) failed, expected errno:22: TEST_ERRNO=0 fallocate(..., 1, 1024, -1024) failed, expected errno:22: TEST_ERRNO=0 fallocate(..., 1, 12288, 0) failed, expected errno:22: TEST_ERRNO=0 fallocate(..., 1, 12288, -1024) failed, expected errno:22: TEST_ERRNO=0 fallocate(..., 1, -24576, 1024) failed, expected errno:22: TEST_ERRNO=0 ----------->8---------- Signed-off-by: Yuriy Kolerov <yuriy.kolerov@synopsys.com>
2015-08-14fix some type differences to linux-next for h8/300Waldemar Brodkorb
2015-08-14getenv: allow overwriting of functionWaldemar Brodkorb
This fixes static compile issues of sudo, because sudo uses it's own getenv implementation.
2015-08-14add mkstemps, mkstemps64 and mkostemps, mkostemps64 functionsRomain Naour
Change __gen_tempname() prototype in order to pass the additional suffix lenght. In __gen_tempname() add a new check for suffixlen. Update some comments in the code. Signed-off-by: Romain Naour <romain.naour@openwide.fr> Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
2015-08-02fix inline asm changing the stack pointer leading to segfaults problemmirabilos
2015-08-02fix MIPS N32 ABI Big Endian setjmp/longjmpmirabilos
access to the jmp_buf structure occasionally happens asymmetrically: fields defined in pointer size width (64 on N32) can be accessed as 32-bit words, but in that case, a̲l̲l̲ involved code must agree on that…
2015-08-02integrate old m68k vfork bugfix of pre-µClibc-ng treemirabilos
2015-07-22ARCv2: update memset() so it could be used without double load/storesClaudiu Zissulescu
Existing version of memset() relies on existence of 64-bit load/stores. While ARC HS38 may not have those instructions implemented in SoC. Proposed implementation checks if "-mno-ll64" option was passed to gcc (for ARCv2 "-mll64" is set implicitly by default) by checking __LL64__ definition and if it is not defined uses 32-bit load/stores. Signed-off-by: Claudiu Zissulescu <claziss@synopsys.com> Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Vineet Gupta <vgupta@synopsys.com>
2015-06-23xtensa: add ret_ERRVAL definitionMax Filippov
ret_ERRVAL is used by mq_timedsend and mq_timedreceive, it needs to be defined to retw, otherwise error return from those functions segfaults. This fixes the following testsuite failures: .... tst-mqueue1 FAIL tst-mqueue1 got 1 expected 0 Didn't expect signal from child: got `Segmentation fault' .... tst-mqueue2 FAIL tst-mqueue2 got 1 expected 0 Didn't expect signal from child: got `Segmentation fault' .... tst-mqueue3 FAIL tst-mqueue3 got 1 expected 0 Didn't expect signal from child: got `Segmentation fault' .... tst-mqueue4 FAIL tst-mqueue4 got 1 expected 0 Didn't expect signal from child: got `Segmentation fault' .... tst-mqueue5 FAIL tst-mqueue5 got 1 expected 0 Didn't expect signal from child: got `Segmentation fault' .... tst-mqueue6 FAIL tst-mqueue6 got 1 expected 0 Didn't expect signal from child: got `Segmentation fault' Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2015-06-23xtensa: fix stack frame size for NPTLMax Filippov
Cancellable syscalls use call8 to call functions that enable/disable cancellation, thus they cannot use the default FRAMESIZE. Redefine FRAMESIZE for such syscalls. This fixes the following testsuite failure: .... tst-mqueue8 FAIL tst-mqueue8 got 1 expected 0 going to cancel mq_receive in-time in-time mq_receive cancellation succeeded going to cancel mq_receive early Didn't expect signal from child: got `Segmentation fault' Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2015-06-10just use 4k pages for microblaze, the config are missing and never committed ↵Waldemar Brodkorb
into uClibc
2015-06-10use common ptrace.h for xtensa, fixes buildroot issues compiling enlightmentWaldemar Brodkorb
2015-06-10h8300: Makefile updateYoshinori Sato
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-06-10h8300: headers updateYoshinori Sato
- wire up new kernel Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-06-10h8300: Assembly functionsYoshinori Sato
- remove symbol prefix - new startup - new clone syscall support Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-06-10siginfo: add signal info for seccomp related SIGSYSDaniel Golle
uClibc doesn't define signal info for the SIGSYS signal which is issued in case of hitting a syscall prohibited by seccomp. This is sad as it makes debugging seccomp filter policies impossible on some architectures (at least ARM and PowerPC, maybe also others) which do not coincidentally set si_value.sival_int as the syscall number. To fix this, import the definitions and macros needed from glibc. Signed-off-by: Daniel Golle <daniel@makrotopia.org> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-06-10_scanf.c: Implement 'm' modifier for 'c' and '[' conversions.Will Newton
The current code implements the 'm' modifier only for 's' conversions and would cause a segfault if it was used for 'c' or '[' conversions. This patch extends the code to cover these cases too. The original version could write scanned data outside the passed buffer because index i used in the '[' conversion handling block was clobbered. Signed-off-by: Will Newton <will.newton@imgtec.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-06-10strftime: comment on %0xY %+nY %-nYBernhard Reutner-Fischer
Would fix: date -u +%4Y%2m%2d%2H%2M%2S Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-04-25Revert "Do not define unimplemented functions"Waldemar Brodkorb
This reverts commit bd3eaf83ef1b4954b6c0e7ba8bbdd29b2cd4a833. They are now implemented.
2015-04-24merge uClibc changesWaldemar Brodkorb
2015-04-22arm: Add BX and BXC macrosBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-04-22arm: Fix POP_RET for armv4t && interworkingBernhard Reutner-Fischer
It seems the condition was reversed which lead to e.g. arm-920t being confused Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-04-22NPTL: Rename a variableBernhard Reutner-Fischer
There seems to be a bug in gold with static TLS at least on x86_64 (?) Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-04-18fix static linking of pthread appsWaldemar Brodkorb
When compiling python you get duplicate symbol problem. Seen in the autobuilders of buildroot project.
2015-04-15merge uClibc masterWaldemar Brodkorb
2015-04-14arm: thumb1: Fix conflicting types for _v3Bernhard Reutner-Fischer
In file included from ./include/sys/syscall.h:33:0, from libc/sysdeps/linux/common/sync_file_range.c:10: libc/sysdeps/linux/common/sync_file_range.c: In function '__sync_file_range_nocancel': ./include/bits/syscalls.h:144:16: error: conflicting types for '_v3' register int _v3 __asm__ ("v3") = _v3tmp; ^ ./libc/sysdeps/linux/arm/sysdep.h:281:7: note: in expansion of macro 'LOAD_ARGS_7' LOAD_ARGS_##nr (args) \ ^ ./libc/sysdeps/linux/arm/sysdep.h:324:2: note: in expansion of macro 'INTERNAL_SYSCALL_RAW' INTERNAL_SYSCALL_RAW(SYS_ify(name), err, nr, args) ^ ./libc/sysdeps/linux/arm/sysdep.h:256:40: note: in expansion of macro 'INTERNAL_SYSCALL' ({ unsigned int _inline_sys_result = INTERNAL_SYSCALL (name, , nr, args); \ ^ libc/sysdeps/linux/common/sync_file_range.c:32:9: note: in expansion of macro 'INLINE_SYSCALL' return INLINE_SYSCALL(sync_file_range, 7, fd, 0, ^ In file included from ./libpthread/nptl/sysdeps/unix/sysv/linux/arm/sysdep-cancel.h:18:0, from ./include/cancel.h:58, from libc/sysdeps/linux/common/sync_file_range.c:15: ./libc/sysdeps/linux/arm/sysdep.h:280:21: note: previous definition of '_v3' was here register int *_v3 __asm__ ("v3") = _sys_buf; \ ... Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-04-13return NULL for realloc(p,0) like glibcWaldemar Brodkorb
See discussion here about the issue: https://sourceware.org/bugzilla/show_bug.cgi?id=12547 Fixes testsuite errors.
2015-04-13libc: Fix page-size in getifaddrs()Bernhard Reutner-Fischer
TODO: this could need a cleanup.. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-04-13buildsys: Do not build crt upon pregenBernhard Reutner-Fischer
No need to build crt when just generating headers Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-04-13buildsys: tweak ucontext_i.h prerequisitesBernhard Reutner-Fischer
ucontext_i.h too depends on uClibc_config.h. Update it to look like the other MANGLE generated files and tweak prereqs Fixes: make realclean ; make -j libc/misc/internals/__uClibc_main.i Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-04-12remove more of the link_warningsWaldemar Brodkorb
Only the stub warnings left for now.
2015-04-12remove link warningsWaldemar Brodkorb
As recently discussed on the pgsql mailinglist, this warnings are more or less useless and some configure scripts are failing when these warnings are enabled. http://www.postgresql.org/message-id/20150320132351.GS3636@alvh.no-ip.org
2015-03-31libc: Fix page-size in getifaddrs()Bernhard Reutner-Fischer
TODO: this could need a cleanup.. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-03-31buildsys: Do not build crt upon pregenBernhard Reutner-Fischer
No need to build crt when just generating headers Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-03-31buildsys: tweak ucontext_i.h prerequisitesBernhard Reutner-Fischer
ucontext_i.h too depends on uClibc_config.h. Update it to look like the other MANGLE generated files and tweak prereqs Fixes: make realclean ; make -j libc/misc/internals/__uClibc_main.i Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-03-29merge uClibc git masterWaldemar Brodkorb
2015-03-27ARC: don't hard-code ELF_NGREGAlexey Brodkin
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com> [updated changelog] Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-03-27ARC/signal: shield sa_restorer from compiler toggle side-effectsVineet Gupta
when building uClibc with -O0 (DODEBUG build) the default sigrestorer had some extra glue code generated for stack manipulation which was messing up resume from signal path. So annotate the function with -Os so that gcc would only generate the bare min 2 instruction TRAP sequence Reported-and-Debugged-by: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-03-26SH: add 't' to syscall clobber listBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-03-25utmp: favour POSIX utmpx over SVID utmpBernhard Reutner-Fischer
Note: _PATH_UTMPX == _PATH_UTMP and the utmp struct is identical to the utmpx struct so this only changes the external API entrypoints and NOT the underlying data source. This saves about 500b (~1300b from previously ~1950) while at it. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-03-25utmp: Remove unneeded aliasBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-03-24mips: switch float_t to floatBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-03-24utmp: indentBernhard Reutner-Fischer
indent only, no code changes Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-03-24utmp: Remove unneeded aliasesBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-03-24utmp: add _unlocked suffix to internal helpersBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-03-24buildsys: HAS_UTMP (XPG2, SVr4 compat) knobBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 05:46:13 +0000