devel November 2019

devel@uclibc-ng.org

4 participants
5 discussions

[PATCH] riscv64: fix comments borrowed from or1k port
by Yann Sionneau 17 Nov '19

17 Nov '19

Signed-off-by: Yann Sionneau <ysionneau(a)kalray.eu> --- libpthread/nptl/sysdeps/riscv64/libc-tls.c | 2 +- libpthread/nptl/sysdeps/riscv64/tls.h | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/libpthread/nptl/sysdeps/riscv64/libc-tls.c b/libpthread/nptl/sysdeps/riscv64/libc-tls.c index 500de1d..67c3a60 100644 --- a/libpthread/nptl/sysdeps/riscv64/libc-tls.c +++ b/libpthread/nptl/sysdeps/riscv64/libc-tls.c @@ -17,7 +17,7 @@ #include <sysdeps/generic/libc-… [View More]

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[PATCH] utils and enabled UCLIBC_BUILD_SSP
by Eugene Yudin 17 Nov '19

17 Nov '19

Hi Waldemar, When building with crosstool-ng, the libssp library is compiled at the final stage of the compiler (after uClibc-ng was built), resulting in the chicken-and-egg problem with utils. The attached patch fixes the problem by building utils without stack smashing protector. [ALL ] mipsel-ndms-linux-uclibc-gcc ../utils/getconf.c -o ../utils/getconf -Wall -Wstrict-prototypes -Wstrict-aliasing -Wno-nonnull-compare -funsigned-char -fno-builtin -fno-asm -fmerge-all-constants -… [View More]msoft-float -std=gnu99 -mabi=32 -mnan=legacy -fstack-protector -nostdinc -I../include -I../include -include libc-symbols.h -I../libc/sysdeps/linux/mips -I../libc/sysdeps/linux -I../ldso/ldso/mips -I../ldso/include -I. -Os -fstrict-aliasing -mno-split-addresses -pipe -D__USE_STDIO_FUTEXES__ -DHAVE_FORCED_UNWIND -D_LIBC_REENTRANT -I../libpthread/nptl -I../libpthread/nptl -I../libpthread/nptl/sysdeps/unix/sysv/linux/mips -I../libpthread/nptl/sysdeps/mips -I../libpthread/nptl/sysdeps/mips -I../libpthread/nptl/sysdeps/unix/sysv/linux -I../libpthread/nptl/sysdeps/unix/sysv/linux -I../libpthread/nptl/sysdeps/pthread -I../libpthread/nptl/sysdeps/pthread/bits -I../libpthread/nptl/sysdeps/generic -I../libc/sysdeps/linux/common -isystem /home/eugene/Documents/work/cases/13220_toolchain/crosstool-ng/.build/mipsel-ndms-linux-uclibc/buildtools/lib/gcc/mipsel-ndms-linux-uclibc/8.1.0/include-fixed -isystem /home/eugene/Documents/work/cases/13220_toolchain/crosstool-ng/.build/mipsel-ndms-linux-uclibc/buildtools/lib/gcc/mipsel-ndms-linux-uclibc/8.1.0/include -I/home/eugene/x-tools/mipsel-ndms-linux-uclibc/mipsel-ndms-linux-uclibc/sysroot/usr/include/ -DNDEBUG -fstack-protector-all -I../ldso/ldso/mips -I../ldso/include -DUCLIBC_RUNTIME_PREFIX="/" -DUCLIBC_LDSO="ld-uClibc.so.1" -I..///home/eugene/x-tools/mipsel-ndms-linux-uclibc/mipsel-ndms-linux-uclibc/sysroot/usr/include/ -DNOT_IN_libc -B../lib -Wl,-rpath-link,../lib -fstack-protector-all -I../ldso/ldso/mips -I../ldso/include -DUCLIBC_RUNTIME_PREFIX="/" -DUCLIBC_LDSO="ld-uClibc.so.1" -I..///home/eugene/x-tools/mipsel-ndms-linux-uclibc/mipsel-ndms-linux-uclibc/sysroot/usr/include/ -DNOT_IN_libc -B../lib -Wl,-rpath-link,../lib -DGETCONF_DIR='"/home/eugene/Documents/work/cases/13220_toolchain/crosstool-ng/.build/mipsel-ndms-linux-uclibc/build/build-libc-final/multilib/utils"' -MT ../utils/getconf -MD -MP -MF ../utils/.getconf.dep [ALL ] ../utils/getconf.c: In function 'main': [ALL ] ../utils/getconf.c:1238:6: warning: statement will never be executed [-Wswitch-unreachable] [ALL ] { [ALL ] ^ [ALL ] /home/eugene/Documents/work/cases/13220_toolchain/crosstool-ng/.build/mipsel-ndms-linux-uclibc/buildtools/lib/gcc/mipsel-ndms-linux-uclibc/8.1.0/../../../../mipsel-ndms-linux-uclibc/bin/ld: cannot find -lssp_nonshared [ALL ] /home/eugene/Documents/work/cases/13220_toolchain/crosstool-ng/.build/mipsel-ndms-linux-uclibc/buildtools/lib/gcc/mipsel-ndms-linux-uclibc/8.1.0/../../../../mipsel-ndms-linux-uclibc/bin/ld: cannot find -lssp [ERROR] collect2: error: ld returned 1 exit status [ALL ] Makefile.in:114: recipe for target '../utils/getconf' failed -- Best regards, Eugene [View Less]

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about "implement fexecve from glibc"
by Yann Sionneau 17 Nov '19

17 Nov '19

Hello, About https://cgit.uclibc-ng.org/cgi/cgit/uclibc-ng.git/commit/?id=858ffad2170762… I'm not sure why exactly sizeof(int)*3 in the following line: char buf[sizeof "/proc/self/fd/" + sizeof (int) * 3]; IIUC, this is supposed to give room for the ascii decimal representation of the file descriptor number. Maybe we could read the max file descriptor number configured in the kernel from "/proc/sys/fs/file-max" (or "/proc/sys/file-max" for old systems?). So: 1/ fopen("/proc/sys/fs/… [View More]

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fix PTRAVE_EVENT_SECCOMP typo in ptrace.h
by Joris Vink 17 Nov '19

17 Nov '19

Hi, This diff fixes a typo in the PTRACE_EVENT_SECCOMP event code. The typo itself was introduced in 2012 when syncing with glibc header files and was itself fixed in 2013 in the glibc headers. diff --git a/libc/sysdeps/linux/common/sys/ptrace.h b/libc/sysdeps/linux/common/sys/ptrace.h index 6b3c7b574..ebafe4e27 100644 --- a/libc/sysdeps/linux/common/sys/ptrace.h +++ b/libc/sysdeps/linux/common/sys/ptrace.h @@ -171,7 +171,7 @@ enum __ptrace_eventcodes PTRACE_EVENT_EXEC = 4, … [View More]

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getenv() bug
by Ata, John (US) 14 Nov '19

14 Nov '19

Hi, The getenv() library call can trap under certain conditions. It compares the passed in environment variable name (var) with the name=variables (*ep) in the environment area and returns a pointer to the value in the environment if it exists. To accomplish this, it does a memcmp() using the length of the passed in name (len) for each environment variable (*ep) against the passed in name (var). So memcmp will attempt to scan both strings for len bytes. However, if for some reason, len is … [View More]

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devel November 2019