https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115148
Bug ID: 115148
Summary: [SH] [12/13/14 Regression]: libcanberra fails with
'unaligned opcodes detected in executable segment'
Product: gcc
Version: 14.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: glaubitz at physik dot fu-berlin.de
CC: olegendo at gcc dot gnu.org
Target Milestone: ---
Target: sh*-*-*
Since gcc 12, building libcanberra on sh4 fails with:
(unstable-sh4-sbuild)glaubitz@z6:/build/libcanberra-x2Sqti/libcanberra-0.30/src$
gcc-12 -DHAVE_CONFIG_H -I. -I.. -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64
-D_TIME_BITS=64 -Wdate-time -D_FORTIFY_SOURCE=2 -pipe -Wall -W -Wextra -Winline
-Wvla -Wundef -Wformat=2 -Wlogical-op -Wsign-compare -Wformat-security
-Wmissing-include-dirs -Wformat-nonliteral -Wold-style-definition
-Wpointer-arith -Winit-self -Wdeclaration-after-statement -Wfloat-equal
-Wmissing-prototypes -Wstrict-prototypes -Wredundant-decls
-Wmissing-declarations -Wmissing-noreturn -Wshadow -Wendif-labels -Wcast-align
-Wstrict-aliasing=2 -Wwrite-strings -Wno-long-long -Wno-overlength-strings
-Wno-unused-parameter -Wno-missing-field-initializers -Wno-unused-result
-Wunsafe-loop-optimizations -Wpacked -Werror=overflow -Wp,-D_FORTIFY_SOURCE=2
-ffast-math -fno-common -fdiagnostics-show-option -fno-strict-aliasing
-ffunction-sections -fdata-sections
-DCA_PLUGIN_PATH=\"/usr/lib/sh4-linux-gnu/libcanberra-0.30\"
-DCA_MACHINE_ID=\"/var/lib/dbus/machine-id\" -g -O2
-Werror=implicit-function-declaration
-ffile-prefix-map=/build/libcanberra-x2Sqti/libcanberra-0.30/=.
-specs=/usr/share/dpkg/pie-compile.specs -fstack-protector-strong -Wformat
-Werror=format-security -c read-vorbis.c -fPIC -DPIC -o
.libs/libcanberra_la-read-vorbis.o
{standard input}: Assembler messages:
{standard input}: Error: unaligned opcodes detected in executable segment
(unstable-sh4-sbuild)glaubitz@z6:/build/libcanberra-x2Sqti/libcanberra-0.30/src$
This goes away when reducing the optimization to -O1:
(unstable-sh4-sbuild)glaubitz@z6:/build/libcanberra-x2Sqti/libcanberra-0.30/src$
gcc-12 -DHAVE_CONFIG_H -I. -I.. -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64
-D_TIME_BITS=64 -Wdate-time -D_FORTIFY_SOURCE=2 -pipe -Wall -W -Wextra -Winline
-Wvla -Wundef -Wformat=2 -Wlogical-op -Wsign-compare -Wformat-security
-Wmissing-include-dirs -Wformat-nonliteral -Wold-style-definition
-Wpointer-arith -Winit-self -Wdeclaration-after-statement -Wfloat-equal
-Wmissing-prototypes -Wstrict-prototypes -Wredundant-decls
-Wmissing-declarations -Wmissing-noreturn -Wshadow -Wendif-labels -Wcast-align
-Wstrict-aliasing=2 -Wwrite-strings -Wno-long-long -Wno-overlength-strings
-Wno-unused-parameter -Wno-missing-field-initializers -Wno-unused-result
-Wunsafe-loop-optimizations -Wpacked -Werror=overflow -Wp,-D_FORTIFY_SOURCE=2
-ffast-math -fno-common -fdiagnostics-show-option -fno-strict-aliasing
-ffunction-sections -fdata-sections
-DCA_PLUGIN_PATH=\"/usr/lib/sh4-linux-gnu/libcanberra-0.30\"
-DCA_MACHINE_ID=\"/var/lib/dbus/machine-id\" -g -O1
-Werror=implicit-function-declaration
-ffile-prefix-map=/build/libcanberra-x2Sqti/libcanberra-0.30/=.
-specs=/usr/share/dpkg/pie-compile.specs -fstack-protector-strong -Wformat
-Werror=format-security -c read-vorbis.c -fPIC -DPIC -o
.libs/libcanberra_la-read-vorbis.o
(unstable-sh4-sbuild)glaubitz@z6:/build/libcanberra-x2Sqti/libcanberra-0.30/src$
or switching to gcc 11:
(unstable-sh4-sbuild)glaubitz@z6:/build/libcanberra-x2Sqti/libcanberra-0.30/src$
gcc-11 -DHAVE_CONFIG_H -I. -I.. -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64
-D_TIME_BITS=64 -Wdate-time -D_FORTIFY_SOURCE=2 -pipe -Wall -W -Wextra -Winline
-Wvla -Wundef -Wformat=2 -Wlogical-op -Wsign-compare -Wformat-security
-Wmissing-include-dirs -Wformat-nonliteral -Wold-style-definition
-Wpointer-arith -Winit-self -Wdeclaration-after-statement -Wfloat-equal
-Wmissing-prototypes -Wstrict-prototypes -Wredundant-decls
-Wmissing-declarations -Wmissing-noreturn -Wshadow -Wendif-labels -Wcast-align
-Wstrict-aliasing=2 -Wwrite-strings -Wno-long-long -Wno-overlength-strings
-Wno-unused-parameter -Wno-missing-field-initializers -Wno-unused-result
-Wunsafe-loop-optimizations -Wpacked -Werror=overflow -Wp,-D_FORTIFY_SOURCE=2
-ffast-math -fno-common -fdiagnostics-show-option -fno-strict-aliasing
-ffunction-sections -fdata-sections
-DCA_PLUGIN_PATH=\"/usr/lib/sh4-linux-gnu/libcanberra-0.30\"
-DCA_MACHINE_ID=\"/var/lib/dbus/machine-id\" -g -O2
-Werror=implicit-function-declaration
-ffile-prefix-map=/build/libcanberra-x2Sqti/libcanberra-0.30/=.
-specs=/usr/share/dpkg/pie-compile.specs -fstack-protector-strong -Wformat
-Werror=format-security -c read-vorbis.c -fPIC -DPIC -o
.libs/libcanberra_la-read-vorbis.o
(unstable-sh4-sbuild)glaubitz@z6:/build/libcanberra-x2Sqti/libcanberra-0.30/src$
This might be related to PR101952. I'll try to isolate the offending
optimization flag now. Will also attach the preprocessed source shortly.
