r...@zoidberg:~/gnu/gcc/trunk/build/gcc$ ./xgcc -v Using built-in specs. COLLECT_GCC=./xgcc Target: arm-unknown-linux-gnueabi Configured with: ../configure --target=arm-unknown-linux-gnueabi --prefix=/home/ryan/x-tools/arm-unknown-linux-gnueabi --with-sysroot=/home/ryan/x-tools/arm-unknown-linux-gnueabi/arm-unknown-linux-gnueabi//sys-root --enable-languages=c,c++ --disable-multilib --with-float=soft --disable-sjlj-exceptions --enable-__cxa_atexit --with-local-prefix=/home/ryan/x-tools/arm-unknown-linux-gnueabi/arm-unknown-linux-gnueabi/sys-root --disable-nls --enable-threads=posix --enable-symvers=gnu --enable-c99 --enable-long-long --enable-target-optspace Thread model: posix gcc version 4.5.0 20100204 (experimental) [trunk revision 156492] (GCC)
r...@zoidberg:~/gnu/gcc/trunk/build/gcc$ touch t.c r...@zoidberg:~/gnu/gcc/trunk/build/gcc$ ./cc1plus -quiet t.c -mfpu=foo t.c:1:0: error: invalid floating point option: -mfpu=foo t.c:1:0: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. (gdb) bt #0 0x08a06fd6 in arm_override_options () at ../../gcc/config/arm/arm.c:1645 #1 0x087b7a6c in process_options () at ../../gcc/toplev.c:1810 #2 0x087b8528 in do_compile () at ../../gcc/toplev.c:2389 #3 0x087b8624 in toplev_main (argc=4, argv=0xbffff364) at ../../gcc/toplev.c:2447 #4 0x083cd2ab in main (argc=4, argv=0xbffff364) at ../../gcc/main.c:35 Patch: 2010-02-04 Ryan Mansfield <rmansfi...@qnx.com> PR target/xxxxx * config/arm/arm.c (arm_override_options): Handle invalid arguments to -mfpu. Index: arm.c =================================================================== --- arm.c (revision 156492) +++ arm.c (working copy) @@ -1292,6 +1292,7 @@ unsigned i; enum processor_type target_arch_cpu = arm_none; enum processor_type selected_cpu = arm_none; + const char *default_fpu_name; /* Set up the flags based on the cpu/architecture selected by the user. */ for (i = ARRAY_SIZE (arm_select); i--;) @@ -1618,29 +1619,31 @@ target_fpe_name); } - if (target_fpu_name == NULL) - { #ifdef FPUTYPE_DEFAULT - target_fpu_name = FPUTYPE_DEFAULT; + default_fpu_name = FPUTYPE_DEFAULT; #else - if (arm_arch_cirrus) - target_fpu_name = "maverick"; - else - target_fpu_name = "fpe2"; + if (arm_arch_cirrus) + default_fpu_name = "maverick"; + else + default_fpu_name = "fpe2"; #endif - } arm_fpu_desc = NULL; for (i = 0; i < ARRAY_SIZE (all_fpus); i++) { - if (streq (all_fpus[i].name, target_fpu_name)) - { - arm_fpu_desc = &all_fpus[i]; - break; - } - } - if (!arm_fpu_desc) - error ("invalid floating point option: -mfpu=%s", target_fpu_name); + if (streq (all_fpus[i].name, default_fpu_name)) + arm_fpu_desc = &all_fpus[i]; + if (target_fpu_name) + { + if (streq (all_fpus[i].name, target_fpu_name)) + { + arm_fpu_desc = &all_fpus[i]; + break; + } + if (i == ARRAY_SIZE (all_fpus) - 1) + error ("invalid floating point option: -mfpu=%s", target_fpu_name); + } + } switch (arm_fpu_desc->model) { -- Summary: ARM: Segfault when invalid -mfpu argument is specified. Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: rmansfield at qnx dot com GCC build triplet: i686-pc-linux-gnu GCC host triplet: i686-pc-linux-gnu GCC target triplet: arm-unknown-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42957
