https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64542
Bug ID: 64542 Summary: ARM use of ARM instruction on Thumb-only target Product: gcc Version: 4.9.3 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: joel at gcc dot gnu.org $ arm-rtems4.11-gcc --version arm-rtems4.11-gcc (GCC) 4.9.3 20150104 (prerelease) arm-rtems4.11-gcc --pipe -mthumb -march=armv6-m --pipe -DHAVE_CONFIG_H -I../../.. -I../../../../../../lib/include -g -O2 -Wall -Wimplicit-function-declaration -Wstrict-prototypes -Wnested-externs -MT libscorecpu_a-cpu.o -MD -MP -MF .deps/libscorecpu_a-cpu.Tpo -c -o libscorecpu_a-cpu.o `test -f 'cpu.c' || echo '/users/joel/test-gcc/rtems/cpukit/score/cpu/arm/'`cpu.c {standard input}: Assembler messages: {standard input}:187: Error: selected processor does not support ARM opcodes {standard input}:188: Error: attempt to use an ARM instruction on a Thumb-only processor -- `mrs r3,cpsr' {standard input}:189: Error: attempt to use an ARM instruction on a Thumb-only processor -- `bic r3,#(1<<7)' {standard input}:190: Error: attempt to use an ARM instruction on a Thumb-only processor -- `orr r3,r0' {standard input}:191: Error: attempt to use an ARM instruction on a Thumb-only processor -- `msr cpsr,r3' {standard input}:192: Error: attempt to use an ARM instruction on a Thumb-only processor -- `add r3,pc,#1' {standard input}:193: Error: attempt to use an ARM instruction on a Thumb-only processor -- `bx r3' {standard input}:218: Error: selected processor does not support ARM opcodes {standard input}:219: Error: attempt to use an ARM instruction on a Thumb-only processor -- `mrs r0,cpsr' {standard input}:220: Error: attempt to use an ARM instruction on a Thumb-only processor -- `and r0,#(1<<7)' {standard input}:221: Error: attempt to use an ARM instruction on a Thumb-only processor -- `add r3,pc,#1' {standard input}:222: Error: attempt to use an ARM instruction on a Thumb-only processor -- `bx r3'