before deleting and restoring it.
(safe_symbol_file_add): Ensure that gdb_stderr is flushed before reassigning
it.
(handle_load_dll): Split into two functions so that WFI can handle shared
library events.
(child_solib_loaded_library_pathname): New function.
(child_clear_solibs): New function. Clears shared library list.
(child_solib_add): New function. Adds shared library symbols.
(dll_symbol_command): New function. Handles "dll-symbol" command.
(info_dll_command): New function. Handles info "sharedlibrary" command.
(handle_exceptions): Eliminate 'ignore_trap' argument.
(get_child_debug_event): Eliminate two arguments. Return "pid" when
appropriate. Break out on most events to allow WFI to handle stuff.
(child_wait): Accomodate get_child_debug_event changes.
(child_attach): Clear thread list and list of loaded dlls.
(child_create_inferior): Clear list of loaded dlls. Use wait_for_inferior in a
loop to look for first "trap".
(child_resume): Avoid accessing a possibly-freed thread pointer.
(_initialize_inftarg): Add "dll-symbols", "sharedlibrary", and "info
dll", and "info sharedlibrary" commands.
* config/i386/tm-cygwin.h: Add some shared library (aka DLL) hooks.
(handle_load_dll): Change DLL name to lower case.
(handle_exception): Add a second argument indicating whether a breakpoint
should be ignored. Return a 0 if the breakpoint was ignored.
(get_child_debug_event): Pass argument to handle_exception to control whether a
breakpoint should be ignored.
(child_create_inferior): Use modern cygwin API. Explicitly clear last_sig.
Pass FIRST_EXCEPTION to get_child_debug_event for detection of first
breakpoint.
* configure.in: Eliminate unneeded WINDRES/DLLTOOL tests left over after last change.
* configure: Regenerate.
* config/i386/nbsdelf.mt: New file.
* config/i386/tm-nbsdelf.h: New file.
* config/i386/tm-nbsd.h: change include of tm-nbsd.h to
the more explicit config/tm-nbsd.h.
* sol-thread.c (rw_common): Circumstances (eg. a bug in Sun's
thread_db library) may cause this function to be called with an
illegal address, in which case procfs_to_xfer_memory will
return zero. Return an error code instead of looping forever.
and i[3456]86-*-netbsdelf*.
* config/i386/nm-nbsdelf.h: New file.
* config/i386/nbsdelf.mh: New file.
* config/i386/nm-nbsd.h: change include of nm-nbsd.h to
the more explicit config/nm-nbsd.h.
* config/i386/tm-nbsd.h: change include of tm-i386bsd.h to
tm-i386.h.
(SIGTRAMP_START, SIGTRAMP_END, SIGCONTEXT_PC_OFFSET): Define.
-------------------------------------------------------------------
(CANNOT_STORE_REGISTER): Define to cannot_fetch_register instead
of CANNOT_FETCH_REGISTER, if not already defined.
(supply_gregset): Call supply_register with NULL as its second
argument instead of supplying our own zeroed out buffer.
(fill_gregset): Copy contents of correct registers instead of the
contents of register REGNO.
* gregset.h: New file. Typedefs for gdb_gregset_t and
gdb_fpregset_t, prototypes for supply_gregset and friends.
* procfs.c: Include gregset.h. Delete local prototypes for
supply_gregset etc., and local typedef gdb_gregset_t etc.
* sol-thread.c: Include gregset.h, delete local prototypes,
add appropriate casts to gdb_gregset_t.
* uw-thread.c, lin-thread.c, core-sol2.c, core-regset.c,
sparc-tdep.c, ptx4-nat.c, ppc-linux-nat.c, mipsv4-nat.c,
m88k-nat.c, m68klinux-nat.c, m68k-tdep.c, irix5-nat.c,
irix4-nat.c, ia64-linux-nat.c, i386v4-nat.c, cxux-nat.c,
arm-linux-nat.c, alpha-nat.c: Include gregset.h.
* config/nm-linux.h: Define GDB_GREGSET_T, GDB_FPREGET_T.
* config/sparc/tm-sun4sol2.h: Ditto.
* gdb.base/break.exp (bp on small function, optimized file):
Add a second pass pattern. The behavior differs here between stabs
and dwarf for one-line functions. Stabs preserves two line symbols
(one before the prologue and one after) with the same line number,
but dwarf regards these as duplicates and discards one of them.
Therefore the address after the prologue (where the breakpoint is)
has no exactly matching line symbol, and GDB reports the breakpoint
as if it were in the middle of a line rather than at the beginning.
sim:
* Makefile.in (interp.o): Depends on ppi.c .
(ppi.c): New rule.
* gencode.c (printonmatch, think, genopc): Deleted.
(MAX_NR_STUFF): Now 42.
(tab): Add SH-DSP CPU instructions.
Amalgamate ldc / stc / lds / sts instructions with similar
bit patterns. Fix opcodes of stc Rm_BANK,@-<REG_N>.
Fix semantics of lds.l @<REG_N>+,MACH (no sign extend).
(movsxy_tab): New array.
For movs, change MMMM field to GGGG, and mmmm field to MMMM.
Added entries for movx, movy and parallel processing insns.
(ppi_tab): New array.
(qfunc): Stabilize sort.
(expand_opcode): Handle [01][01]NN, [01][01]xx and [01][01]yy.
Handle 'M', 'G' 's' 'X', 'a', 'Y' and 'A'.
(dumptable): Now takes three arguments. Changed all callers.
Emit just one contigous jump table.
(filltable): Now takes an argument. Changed all callers.
Make index static.
(ppi_moves, expand_ppi_code, ppi_filltable, ppi_gensim): New functions.
(gensim_caselist): New function, broken out of gensim.
Handle opcode fields 'x', 'y', 's', 'M', 'G', 'X', 'a', and 'Y'.
Handle ref '9'.
(gensim): Handle 'N' in code field and '8' in refs field.
Call gensim_caselist - twice.
(ppi_index): New static variable.
(main): Unsupport default action.
Add dsp support for -x / -s option. Add -p option.
* interp.c (sh_jump_table, sh_dsp_table, ppi_table): Declare.
(saved_state_type): Rearrange to allow amalgamated ldc / stc /
lds / sts to work efficiently.
(target_dsp): New static variable.
(GBR, VBR, SSR, SPC, MACH, MACL): Reflect saved_state_type change.
(FPUL, Rn_BANK, SET_Rn_BANK, M, Q, S, T, SR_BL, SR_RB): Likewise.
(SR_MD, SR_RC, SET_SR_BIT, GET_SR, SET_RC, GET_FPSCR): Likewise.
(RS, RE, MOD, MOD_ME, DSP_R): Likewise.
(set_fpscr1): Likewise. Use target_dsp to check for dsp.
(MOD_MSi, SIG_BUS_FETCH): Deleted.
(CREG, SREG, PR, SR_MASK_DMY, SR_MASK_DMX, SR_DMY): New macros.
(SR_DMX, DSR, MOD_DELTA, GET_DSP_GRD): Likewise.
(SET_MOD): Reflect saved_state_type change. Set MOD_DELTA instead
of MOD_MS, and encode SR_DMY / SR_DMX into high word of MOD_ME.
(set_sr): Reflect saved_state_type change. Fix SR_RB handling.
Use SET_MOD.
(MA, L, TL, TB): Now controlled by ACE_FAST.
(SEXT32): Just cast to int.
(SIGN32): Fixed to only shift by 31.
(CHECK_INSN_PTR): SIGBUS at insn fetch now represented by insn_end 0.
(ppi_insn): Declare.
(ppi.c): Include.
(init_dsp): Set target_dsp. When it changes, switch end of
sh_jump_table with sh_dsp_table.
(sim_resume) Don't declare sh_jump_table0. Use sh_jump_table instead.
Don't Declare PR if it's #defined.
Fix single-stepping (Was broken in Mar 6 16:59:10 patch).
(sim_store_register, sim_read_register): Translate accesses to
reflect saved_state_type change.
* interp.c (set_sr): Set sr.
(SET_RC, MOD, MOD_MS, MOD_ME, SET_MOD, MOD_MS, MOD_ME): New macros.
(set_fpscr1): Don't bank-switch fpu registers when simulating sh-dsp.
(DSP_R): Fix definition.
(sim_resume): Remove outdated SET_SR use.
* interp.c (saved_state): New members for struct member asregs:
rs, re, insn_end, xram_start, yram_start.
(struct loop_bounds): New struct.
(SKIP_INSN): New macro.
(get_loop_bounds): New function.
(endianw): Renamed to global_endianw.
(maskw): negated bits.
(PC): Now insn_ptr.
(SR_MASK_RC, SR_RC_INCREMENT, SR_RC, RAISE_EXCEPTION): New macros.
(RS, RE, DSP_R, DSP_GRD, A1, A0, X0, X1, Y0, Y1, M0, A1G): Likewise.
(M1, A0G, RIAT, PT2H, PH2T, SET_NIP, CHECK_INSN_PTR): Likewise.
(SIG_BUS_FETCH): Likewise
(raise_exception, riat_fast): New functions.
(raise_buserror, sim_stop): Use raise_exception.
(PROCESS_SPECIAL_ADDRESS): Use xram_start / yram_start.
(BUSERROR, WRITE_BUSERROR, READ_BUSERROR):
Reverse sense of mask argument.
(FP_OP, set_dr): Use RAISE_EXCEPTION.
(wlat_fast, wwat_fast, wbat_fast, rlat_fast, rwat_fast, rbat_fast):
Declare. Remove redundant masking.
(wwat_fast, rwat_fast): Add argument endianw. Changed callers.
(MA): Updated for change pc -> PC.
(Delay_Slot): Use RIAT.
(empty): Deleted.
(trap): Remove argument little_endian. Add argument endianw.
Changed all callers. Use raise_exception.
(macw): Add argument endainw. Changed all callers.
(init_dsp): New function, extended after broken out of init_pointers.
(sim_resume): Replace pc with insn_ptr. Replace little_endian with
endianw. Replace nia with nip. Reverse sense of maskb / maskw /
maskl. Implement logic for zero-overhead loops. Don't try to
interpret garbage when getting a SIGBUS at insn fetch.
(sim_open): Call init_dsp.
* gencode.c (tab): Use SET_NIP instead of nia = . Use PH2T / PT2H /
RAISE_EXCEPTION where appropriate.
Add extra cycles for brai, braf , bsr, bsrf, jmp, jsr.
* interp.c (sim_store_register, sim_fetch_register):
Do proper endianness switch.
* interp.c (saved_state_type): New members for struct member asregs:
xymem_select, xmem, ymem, xmem_offset, ymem_offset.
(special_address): Delete.
(BUSERROR): Now a two-argument predicate.
(PROCESS_SPECIAL_ADDRESS, WRITE_BUSERROR, READ_BUSERROR): New macros.
(wlat_little, wwat_little, wbat_any, wlat_big, wwat_big): Delete.
(process_wlat_addr, process_wwat_addr): New functions.
(process_wbat_addr, process_rlat_addr, process_rwat_addr): Likewise.
(process_rbat_addr): Likewise.
(wlat_fast, wwat_fast, wbat_fast): Use WRITE_BUSERROR.
(rlat_little, rwat_little, rbat_any, rlat_big, rwat_big): Delete.
(rlat_fast, rwat_fast, rbat_fast): Use READ_BUSERROR.
(RWAT, RLAT, RBAT, WWAT, WLAT, WBAT): Delete SLOW versions.
(do_rdat, trap): Delete SLOW code.
(SEXT32, SIGN32): New macros.
(swap, swap16): Now integer in - integer out. Changed all callers.
(strswaplen, strnswap): Delete SLOW versions.
(init_pointers): Initialize dsp memory selection (preliminary).
(sim_store_register, sim_fetch_register): Use swap instead of
big / little endian read / write functions.
* interp.c (maskl): Deleted.
(endianw, endianb): New variables.
(special_address): Now inline.
(bp_holder): Put raising of buserror there, rename to:
(raise_buserror).
(BUSERROR): Now yields a value. Changed all users.
(wbat_big): Delete.
(wlat_fast, wwat_fast, wbat_fast): New functions.
(rlat_fast, rwat_fast, rbat_fast): Likewise.
(RWAT, RLAT, RBAT, WWAT, WLAT, WBAT): Use new functions.
(do_rdat, do_wdat): Likewise. Take maskl argument instead of
little_endian one. Changed caller macros.
(swap, swap16): Use w[rw]lat_big / w[rw]lat_little directly.
(strswaplen, strnswap): New functions.
(trap): Use them to fix up endian mismatches;
disable SYS_execve and SYS_execv; fix double address translation for
SYS_pipe and SYS_stat.
(sym_write, sym_read): Add endianness translation.
(sym_store_register, sym_fetch_register): Add maskl local variable.
(sim_open): Set endianw and endianb.
gdb:
* sh-tdep.c (sh_dsp_reg_names, sh3_dsp_reg_names): New arrays.
(sh_processor_type_table): Add entries for bfd_mach_sh_dsp and
bfd_mach_sh3_dsp.
(sh_show_regs): Floating point registers are called fr0-fr15.
For sh4, display fpul, fpscr and fr0-fr15 / dr0-dr14 as appropriate.
Handle sh-dsp and sh3-dsp.
config/sh/tm-sh.h (REGISTER_VIRTUAL_TYPE): sh-dsp / sh3-dsp
don't have floating point registers.
(DSR_REGNUM, A0G_REGNUM, A0_REGNUM, A1G_REGNUM, A1_REGNUM): Define.
(M0_REGNUM, M1_REGNUM, X0_REGNUM, X1_REGNUM, Y0_REGNUM): Likewise.
(Y1_REGNUM, MOD_REGNUM, RS_REGNUM, RE_REGNUM, R0B_REGNUM): Likewise.
