From fc5b254aa6be44352ff69e6dabf178d641cf3c2d Mon Sep 17 00:00:00 2001 From: Jason Molenda Date: Mon, 14 Dec 1998 23:55:25 +0000 Subject: [PATCH] 1998-12-14 Anthony Thompson (athompso@cambridge.arm.com) * remote-rdp.c (rdp_init): Don't discard first character on reset. (translate_open_mode): Define table. (exec_swi): Handle SWI_Clock. SWI_Open now handles stdin/stdout. SWI_Write returns number of bytes not written. SWI_Read does the same. SWI_Seek should return success/failure flag. Fix SWI_Flen. A patch from PR 15841 for the RDP (Demon) interface. --- gdb/ChangeLog | 8 +++++ gdb/remote-rdp.c | 93 ++++++++++++++++++++++++++++++++++-------------- 2 files changed, 74 insertions(+), 27 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 4141ed463d5..f0b6220945b 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,11 @@ +1998-12-14 Anthony Thompson (athompso@cambridge.arm.com) + + * remote-rdp.c (rdp_init): Don't discard first character on reset. + (translate_open_mode): Define table. + (exec_swi): Handle SWI_Clock. SWI_Open now handles stdin/stdout. + SWI_Write returns number of bytes not written. SWI_Read does the + same. SWI_Seek should return success/failure flag. Fix SWI_Flen. + 1998-12-14 J.T. Conklin * config/i386/nbsd.mh, config/m68k/nbsd.mh, config/ns32k/nbsd.mh diff --git a/gdb/remote-rdp.c b/gdb/remote-rdp.c index 35422a53216..4b6d4680372 100644 --- a/gdb/remote-rdp.c +++ b/gdb/remote-rdp.c @@ -320,15 +320,16 @@ rdp_init (cold, tty) { case SERIAL_TIMEOUT: break; + case RDP_RESET: while ((restype = SERIAL_READCHAR (io, 1)) == RDP_RESET) ; - while ((restype = SERIAL_READCHAR (io, 1)) > 0) + do { printf_unfiltered ("%c", isgraph (restype) ? restype : ' '); } - while ((restype = SERIAL_READCHAR (io, 1)) > 0) - ; + while ((restype = SERIAL_READCHAR (io, 1)) > 0); + if (tty) { printf_unfiltered ("\nThe board has sent notification that it was reset.\n"); @@ -337,9 +338,12 @@ rdp_init (cold, tty) sleep (3); if (tty) printf_unfiltered ("\nTrying again.\n"); + cold = 0; break; + default: break; + case RDP_RES_VALUE: { int resval = SERIAL_READCHAR (io, 1); @@ -807,6 +811,26 @@ argsin; #define SWI_GenerateError 0x71 +#ifndef O_BINARY +#define O_BINARY 0 +#endif + +static int translate_open_mode[] = +{ + O_RDONLY, /* "r" */ + O_RDONLY+O_BINARY, /* "rb" */ + O_RDWR, /* "r+" */ + O_RDWR +O_BINARY, /* "r+b" */ + O_WRONLY +O_CREAT+O_TRUNC, /* "w" */ + O_WRONLY+O_BINARY+O_CREAT+O_TRUNC, /* "wb" */ + O_RDWR +O_CREAT+O_TRUNC, /* "w+" */ + O_RDWR +O_BINARY+O_CREAT+O_TRUNC, /* "w+b" */ + O_WRONLY +O_APPEND+O_CREAT,/* "a" */ + O_WRONLY+O_BINARY+O_APPEND+O_CREAT,/* "ab" */ + O_RDWR +O_APPEND+O_CREAT,/* "a+" */ + O_RDWR +O_BINARY+O_APPEND+O_CREAT /* "a+b" */ +}; + static int exec_swi (swi, args) int swi; @@ -836,31 +860,41 @@ exec_swi (swi, args) case SWI_Time: args->n = callback->time (callback, NULL); return 1; + + case SWI_Clock : + /* return number of centi-seconds... */ + args->n = +#ifdef CLOCKS_PER_SEC + (CLOCKS_PER_SEC >= 100) + ? (clock() / (CLOCKS_PER_SEC / 100)) + : ((clock() * 100) / CLOCKS_PER_SEC) ; +#else + /* presume unix... clock() returns microseconds */ + clock() / 10000 ; +#endif + return 1 ; + case SWI_Remove: args->n = callback->unlink (callback, args->s); return 1; case SWI_Rename: args->n = callback->rename (callback, args[0].s, args[1].s); return 1; - case SWI_Open: - i = 0; - -#ifdef O_BINARY - if (args[1].n & 1) - i |= O_BINARY; -#endif - if (args[1].n & 2) - i |= O_RDWR; - - if (args[1].n & 4) - { - i |= O_CREAT; - } - - if (args[1].n & 8) - i |= O_APPEND; - args->n = callback->open (callback, args->s, i); + case SWI_Open: + /* Now we need to decode the Demon open mode */ + i = translate_open_mode[args[1].n]; + + /* Filename ":tt" is special: it denotes stdin/out */ + if (strcmp(args->s,":tt")==0) + { + if (i == O_RDONLY ) /* opening tty "r" */ + args->n = 0 /* stdin */ ; + else + args->n = 1 /* stdout */ ; + } + else + args->n = callback->open (callback, args->s, i); return 1; case SWI_Close: @@ -868,25 +902,30 @@ exec_swi (swi, args) return 1; case SWI_Write: - args->n = callback->write (callback, args[0].n, args[1].s, args[1].n); + /* Return the number of bytes *not* written */ + args->n = args[1].n - + callback->write (callback, args[0].n, args[1].s, args[1].n); return 1; + case SWI_Read: { char *copy = alloca (args[2].n); int done = callback->read (callback, args[0].n, copy, args[2].n); if (done > 0) - remote_rdp_xfer_inferior_memory (args[0].n, copy, done, 1, 0); - args->n -= done; + remote_rdp_xfer_inferior_memory (args[1].n, copy, done, 1, 0); + args->n = args[2].n-done; return 1; } case SWI_Seek: - args->n = callback->lseek (callback, args[0].n, args[1].n, 0) >= 0; + /* Return non-zero on failure */ + args->n = callback->lseek (callback, args[0].n, args[1].n, 0) < 0; return 1; + case SWI_Flen: { - long old = callback->lseek (callback, args->n, 1, 1); - args->n = callback->lseek (callback, args->n, 2, 0); + long old = callback->lseek (callback, args->n, 0, SEEK_CUR); + args->n = callback->lseek (callback, args->n, 0, SEEK_END); callback->lseek (callback, args->n, old, 0); return 1; } -- 2.30.2