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Hi, I have the misfortune to run solaris2.5.1 on my nice dual P200 Vectra. I tried to build gdb-970817 using this version of egcs: Reading specs from /p/lib/gcc-lib/i386-pc-solaris2.5.1/egcs-2.90.06/specs gcc version egcs-2.90.06 970907 (gcc2-970802 experimental) My first compile failed because neither R_PSR nor PS_FLAG_CARRY was defined. Here's a kludge to work around that. --- procfs.c.orig Sat Sep 27 12:22:02 1997 +++ procfs.c Sat Sep 27 12:21:50 1997 @@ -5218,6 +5218,7 @@ procfs_lwp_creation_handler (pi, syscall /* If lwp_create failed, then nothing interesting happened. Continue the process and go back to sleep. */ +#if defined (R_PSR) && defined (PS_FLAG_CARRY) if (pi->prstatus.pr_reg[R_PSR] & PS_FLAG_CARRY) { /* _lwp_create failed */ pi->prrun.pr_flags &= PRSTEP; @@ -5228,6 +5229,7 @@ procfs_lwp_creation_handler (pi, syscall return 0; } +#endif /* At this point, the new thread is stopped at it's first instruction, and the parent is stopped at the exit from lwp_create. */ Next attempt failed because TIDGET is not defined and hence, procfs_pid_to_str (used below) is not defined. Here's the really ugly kludge I used to work around that. --- sol-thread.c.orig Sat Sep 27 12:21:09 1997 +++ sol-thread.c Sat Sep 27 12:20:38 1997 @@ -121,7 +121,11 @@ static int sol_thread_alive PARAMS ((int #define THREAD_FLAG 0x80000000 #define is_thread(ARG) (((ARG) & THREAD_FLAG) != 0) #define is_lwp(ARG) (((ARG) & THREAD_FLAG) == 0) +#ifdef TIDGET #define GET_LWP(LWP_ID) (TIDGET(LWP_ID)) +#else +# define GET_LWP(LWP_ID) 1 /* Kludge!! */ +#endif #define GET_THREAD(THREAD_ID) (((THREAD_ID) >> 16) & 0x7fff) #define BUILD_LWP(LWP_ID, PID) ((LWP_ID) << 16 | (PID)) #define BUILD_THREAD(THREAD_ID, PID) (THREAD_FLAG | BUILD_LWP (THREAD_ID, PID)) @@ -1213,9 +1217,11 @@ solaris_pid_to_str (pid) { static char buf[100]; +#ifdef TIDGET /* in case init failed to resolve the libthread_db library */ if (!procfs_suppress_run) return procfs_pid_to_str (pid); +#endif if (is_thread (pid)) { Finally, I got this (inexplicable to me) link error: ... te.o main.o inflow.o gnu-regex.o ../bfd/libbfd.a ../readline/libreadline.a ../opcodes/libopcodes.a ../libiberty/libiberty.a -ltermlib -ldl -lm ../mmalloc/libmmalloc.a ../libiberty/libiberty.a ld: fatal: entry point symbol `xport-dynamic' is undefined collect2: ld returned 1 exit status make[1]: *** [gdb] Error 1 make[1]: Leaving directory `/tmp/gdb-970817/gdb' make: *** [all-gdb] Error 2 [Exit 2]