diff options
Diffstat (limited to 'sim')
| -rw-r--r-- | sim/ppc/ChangeLog | 19 | ||||
| -rw-r--r-- | sim/ppc/hw_init.c | 42 | ||||
| -rw-r--r-- | sim/ppc/hw_register.c | 11 | ||||
| -rw-r--r-- | sim/ppc/psim.c | 32 | ||||
| -rw-r--r-- | sim/ppc/psim.h | 11 | ||||
| -rw-r--r-- | sim/ppc/sim_calls.c | 32 |
6 files changed, 83 insertions, 64 deletions
diff --git a/sim/ppc/ChangeLog b/sim/ppc/ChangeLog index 0dd4306..a9bc004 100644 --- a/sim/ppc/ChangeLog +++ b/sim/ppc/ChangeLog @@ -1,3 +1,22 @@ +2003-06-20 Andrew Cagney <cagney@redhat.com> + + * sim_calls.c (sim_create_inferior): Assert that + psim_write_register succeeded. + (sim_fetch_register, sim_store_register): Make "regname" constant. + Delete Altivec hack. Return result from psim_read_register / + psim_write_register. + * psim.h (psim_read_register, psim_write_register): Change return + type to int. Update comments. + * psim.c: Update copyright. + (psim_stack): Assert that the psim_read_register worked. + (psim_read_register, psim_read_register): Return the register's + size. Allocate the cooked buffer dynamically. + * hw_register.c: Update copyright. + (do_register_init): Check that psim_write_register succeeded. + * hw_init.c: Update copyright. + (create_ppc_elf_stack_frame, create_ppc_aix_stack_frame): Assert + that the register transfer worked. + 2003-06-19 Andrew Cagney <cagney@redhat.com> * ld-insn.h: Update copyright. diff --git a/sim/ppc/hw_init.c b/sim/ppc/hw_init.c index 86e753c..253ef7c 100644 --- a/sim/ppc/hw_init.c +++ b/sim/ppc/hw_init.c @@ -1,6 +1,6 @@ /* This file is part of the program psim. - Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au> + Copyright 1994, 1997, 2003 Andrew Cagney This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -591,16 +591,16 @@ create_ppc_elf_stack_frame(device *me, start_argv, start_envp); /* set up the registers */ - psim_write_register(device_system(me), -1, - &top_of_stack, "sp", cooked_transfer); - psim_write_register(device_system(me), -1, - &argc, "r3", cooked_transfer); - psim_write_register(device_system(me), -1, - &start_argv, "r4", cooked_transfer); - psim_write_register(device_system(me), -1, - &start_envp, "r5", cooked_transfer); - psim_write_register(device_system(me), -1, - &start_aux, "r6", cooked_transfer); + ASSERT (psim_write_register(device_system(me), -1, + &top_of_stack, "sp", cooked_transfer) > 0); + ASSERT (psim_write_register(device_system(me), -1, + &argc, "r3", cooked_transfer) > 0); + ASSERT (psim_write_register(device_system(me), -1, + &start_argv, "r4", cooked_transfer) > 0); + ASSERT (psim_write_register(device_system(me), -1, + &start_envp, "r5", cooked_transfer) > 0); + ASSERT (psim_write_register(device_system(me), -1, + &start_aux, "r6", cooked_transfer) > 0); } static void @@ -619,16 +619,16 @@ create_ppc_aix_stack_frame(device *me, create_ppc_elf_stack_frame(me, bottom_of_stack, argv, envp); /* extract argument addresses from registers */ - psim_read_register(device_system(me), 0, - &top_of_stack, "r1", cooked_transfer); - psim_read_register(device_system(me), 0, - &core_argc, "r3", cooked_transfer); - psim_read_register(device_system(me), 0, - &core_argv, "r4", cooked_transfer); - psim_read_register(device_system(me), 0, - &core_envp, "r5", cooked_transfer); - psim_read_register(device_system(me), 0, - &core_aux, "r6", cooked_transfer); + ASSERT (psim_read_register(device_system(me), 0, + &top_of_stack, "r1", cooked_transfer) > 0); + ASSERT (psim_read_register(device_system(me), 0, + &core_argc, "r3", cooked_transfer) > 0); + ASSERT (psim_read_register(device_system(me), 0, + &core_argv, "r4", cooked_transfer) > 0); + ASSERT (psim_read_register(device_system(me), 0, + &core_envp, "r5", cooked_transfer) > 0); + ASSERT (psim_read_register(device_system(me), 0, + &core_aux, "r6", cooked_transfer) > 0); /* extract arguments from registers */ device_error(me, "Unfinished procedure create_ppc_aix_stack_frame\n"); diff --git a/sim/ppc/hw_register.c b/sim/ppc/hw_register.c index f361e46..549ecf9 100644 --- a/sim/ppc/hw_register.c +++ b/sim/ppc/hw_register.c @@ -1,6 +1,6 @@ /* This file is part of the program psim. - Copyright (C) 1994-1996, Andrew Cagney <cagney@highland.com.au> + Copyright 1994, 1995, 1996, 2003 Andrew Cagney This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -98,10 +98,11 @@ do_register_init(device *me, DTRACE(register, ("%d.%s=0x%lx\n", processor, name, (unsigned long)value)); } - psim_write_register(system, processor, /* all processors */ - &value, - name, - cooked_transfer); + if (psim_write_register(system, processor, /* all processors */ + &value, + name, + cooked_transfer) <= 0) + error("Invalid register name %s\n", name); } } diff --git a/sim/ppc/psim.c b/sim/ppc/psim.c index 76bb452..1eb8e00 100644 --- a/sim/ppc/psim.c +++ b/sim/ppc/psim.c @@ -1,6 +1,6 @@ /* This file is part of the program psim. - Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au> + Copyright 1994, 1995, 1996, 1997, 2003 Andrew Cagney This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -729,7 +729,8 @@ psim_stack(psim *system, "/openprom/init/stack"); if (stack_device != (device*)0) { unsigned_word stack_pointer; - psim_read_register(system, 0, &stack_pointer, "sp", cooked_transfer); + ASSERT (psim_read_register(system, 0, &stack_pointer, "sp", + cooked_transfer) > 0); device_ioctl(stack_device, NULL, /*cpu*/ 0, /*cia*/ @@ -766,7 +767,7 @@ psim_run(psim *system) /* storage manipulation functions */ INLINE_PSIM\ -(void) +(int) psim_read_register(psim *system, int which_cpu, void *buf, @@ -774,7 +775,7 @@ psim_read_register(psim *system, transfer_mode mode) { register_descriptions description; - char cooked_buf[sizeof(unsigned_8)]; + char *cooked_buf; cpu *processor; /* find our processor */ @@ -792,7 +793,8 @@ psim_read_register(psim *system, /* find the register description */ description = register_description(reg); if (description.type == reg_invalid) - error("psim_read_register() invalid register name `%s'\n", reg); + return 0; + cooked_buf = alloca (description.size); /* get the cooked value */ switch (description.type) { @@ -877,12 +879,13 @@ psim_read_register(psim *system, memcpy(buf/*dest*/, cooked_buf/*src*/, description.size); } + return description.size; } INLINE_PSIM\ -(void) +(int) psim_write_register(psim *system, int which_cpu, const void *buf, @@ -891,7 +894,7 @@ psim_write_register(psim *system, { cpu *processor; register_descriptions description; - char cooked_buf[sizeof(unsigned_8)]; + char *cooked_buf; /* find our processor */ if (which_cpu == MAX_NR_PROCESSORS) { @@ -901,21 +904,23 @@ psim_write_register(psim *system, else which_cpu = system->last_cpu; } + + /* find the description of the register */ + description = register_description(reg); + if (description.type == reg_invalid) + return 0; + cooked_buf = alloca (description.size); + if (which_cpu == -1) { int i; for (i = 0; i < system->nr_cpus; i++) psim_write_register(system, i, buf, reg, mode); - return; + return description.size; } ASSERT(which_cpu >= 0 && which_cpu < system->nr_cpus); processor = system->processors[which_cpu]; - /* find the description of the register */ - description = register_description(reg); - if (description.type == reg_invalid) - error("psim_write_register() invalid register name %s\n", reg); - /* If the data is comming in raw (target order), need to cook it into host order before putting it into PSIM's internal structures */ if (mode == raw_transfer) { @@ -981,6 +986,7 @@ psim_write_register(psim *system, } + return description.size; } diff --git a/sim/ppc/psim.h b/sim/ppc/psim.h index f0cf3a5..8c1c920 100644 --- a/sim/ppc/psim.h +++ b/sim/ppc/psim.h @@ -138,21 +138,24 @@ extern event_queue *psim_event_queue -/* manipulate the state (registers or memory) of a processor within +/* Manipulate the state (registers or memory) of a processor within the system. In the case of memory, the read/write is performed using the specified processors address translation tables. Where applicable, WHICH_CPU == -1 indicates all processors and - WHICH_CPU == <nr_cpus> indicates the `current' processor. */ + WHICH_CPU == <nr_cpus> indicates the `current' processor. -extern void psim_read_register + The register functions return the size of the register, or 0 if the + register's name is not recognized. */ + +extern int psim_read_register (psim *system, int which_cpu, void *host_ordered_buf, const char reg[], transfer_mode mode); -extern void psim_write_register +extern int psim_write_register (psim *system, int which_cpu, const void *buf, diff --git a/sim/ppc/sim_calls.c b/sim/ppc/sim_calls.c index 22aa21b..040ce83 100644 --- a/sim/ppc/sim_calls.c +++ b/sim/ppc/sim_calls.c @@ -1,6 +1,6 @@ /* This file is part of the program psim. - Copyright (C) 1994-1996,1998, Andrew Cagney <cagney@highland.com.au> + Copyright 1994, 1995, 1996, 1998, 2003 Andrew Cagney This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -180,7 +180,7 @@ sim_write (SIM_DESC sd, SIM_ADDR mem, unsigned char *buf, int length) int sim_fetch_register (SIM_DESC sd, int regno, unsigned char *buf, int length) { - char *regname; + const char *regname; if (simulator == NULL) { return 0; @@ -194,43 +194,33 @@ sim_fetch_register (SIM_DESC sd, int regno, unsigned char *buf, int length) But there are loops that just walk through the entire list of names and try to get everything. */ regname = gdbarch_register_name (current_gdbarch, regno); - /* FIXME: ezannoni 2002/04/15 Remove the 'vr' and 'vscr' check - once AltiVec support is committed. */ - if (! regname || regname[0] == '\0' - || (regname[0] == 'v' && regname[1] == 'r') - || (strcmp (regname, "vscr") == 0)) + if (! regname || regname[0] == '\0') return -1; TRACE(trace_gdb, ("sim_fetch_register(regno=%d(%s), buf=0x%lx)\n", regno, regname, (long)buf)); - psim_read_register(simulator, MAX_NR_PROCESSORS, - buf, regname, raw_transfer); - return -1; + return psim_read_register(simulator, MAX_NR_PROCESSORS, + buf, regname, raw_transfer); } int sim_store_register (SIM_DESC sd, int regno, unsigned char *buf, int length) { - char *regname; + const char *regname; if (simulator == NULL) return 0; /* See comments in sim_fetch_register, above. */ regname = gdbarch_register_name (current_gdbarch, regno); - /* FIXME: ezannoni 2002/04/15 Remove the 'vr' and 'vscr' check - once AltiVec support is committed. */ - if (! regname || regname[0] == '\0' - || (regname[0] == 'v' && regname[1] == 'r') - || (strcmp (regname, "vscr") == 0)) + if (! regname || regname[0] == '\0') return -1; TRACE(trace_gdb, ("sim_store_register(regno=%d(%s), buf=0x%lx)\n", regno, regname, (long)buf)); - psim_write_register(simulator, MAX_NR_PROCESSORS, - buf, regname, raw_transfer); - return -1; + return psim_write_register(simulator, MAX_NR_PROCESSORS, + buf, regname, raw_transfer); } @@ -263,8 +253,8 @@ sim_create_inferior (SIM_DESC sd, psim_init(simulator); psim_stack(simulator, argv, envp); - psim_write_register(simulator, -1 /* all start at same PC */, - &entry_point, "pc", cooked_transfer); + ASSERT (psim_write_register(simulator, -1 /* all start at same PC */, + &entry_point, "pc", cooked_transfer) > 0); return SIM_RC_OK; } |