Buildresult: powerpc-next/44x/sequoia_defconfig/powerpc-gcc4.6 built on Mar 5 2018, 12:19

kisskb

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Status:	OK
Date/Time:	Mar 5 2018, 12:19
Duration:	0:00:38.276516
Builder:	ka4
Revision:	powerpc: Keep const vars out of writable .sdata (`26a7f2efa8557bc235ef632d477b1aef6612bbc8)`
Target:	powerpc-next/44x/sequoia_defconfig/powerpc-gcc4.6
Branch:	powerpc-next
Compiler:	powerpc-gcc4.6 (powerpc-linux-gcc (GCC) 4.6.3)
Config:	44x/sequoia_defconfig (download)
Log:	Download original Possible warnings (2) kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] drivers/tty/serial/8250/8250_core.c:251:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify 26a7f2efa8557bc235ef632d477b1aef6612bbc8^{commit} 26a7f2efa8557bc235ef632d477b1aef6612bbc8 already have revision, skipping fetch # git checkout -q -f -B kisskb 26a7f2efa8557bc235ef632d477b1aef6612bbc8 # git clean -qxdf # git log -1 commit 26a7f2efa8557bc235ef632d477b1aef6612bbc8 Author: Segher Boessenkool <segher@kernel.crashing.org> Date: Wed Feb 28 17:02:49 2018 -0800 powerpc: Keep const vars out of writable .sdata Newer gcc will support "-mno-readonly-in-sdata"[1], which makes sure that the optimization on PPC32 for variables getting moved into the .sdata section will not apply to const variables (which must be in .rodata). This was originally noticed in mm/rodata_test.c when rodata_test_data was not static: c0695034 g O .data 00000004 rodata_test_data After this patch with an updated compiler, this is correctly in .rodata. [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82411 Reported-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < git log --format=%s --max-count=1 26a7f2efa8557bc235ef632d477b1aef6612bbc8 # < make -s -j 10 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_sequoia_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- 44x/sequoia_defconfig # make -s -j 10 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_sequoia_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq': /kisskb/src/drivers/tty/serial/8250/8250_core.c:251:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:231:19: note: 'i' was declared here INFO: Uncompressed kernel (size 0x483bec) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x500000) Image Name: Linux-4.16.0-rc3-g26a7f2e Created: Mon Mar 5 12:19:38 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2278810 Bytes = 2225.40 kB = 2.17 MB Load Address: 00500000 Entry Point: 0050110c Completed OK # rm -rf /kisskb/build/powerpc-next_44x_sequoia_defconfig_powerpc # Build took: 0:00:38.276516

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