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2020-01-24gdb: Don't reorder line table entries too much when sorting.Andrew Burgess1-1/+6
Don't reorder line table entries for the same address when sorting the line table, maintain the compiler given line order. Usually this will reflect the order in which lines are conceptually encountered at a given address. Consider this example: /* 1 */ volatile int global_var; /* 2 */ int __attribute__ ((noinline)) /* 3 */ bar () /* 4 */ { /* 5 */ return global_var; /* 6 */ } /* 7 */ static inline int __attribute__ ((always_inline)) /* 8 */ foo () /* 9 */ { /* 10 */ return bar (); /* 11 */ } /* 12 */ int /* 13 */ main () /* 14 */ { /* 15 */ global_var = 0; /* 16 */ return foo (); /* 17 */ } GCC 10 currently generates a line table like this (as shown by objdump): CU: ./test.c: File name Line number Starting address test.c 4 0x4004b0 test.c 5 0x4004b0 test.c 6 0x4004b6 test.c 6 0x4004b7 test.c 14 0x4003b0 test.c 15 0x4003b0 test.c 16 0x4003ba test.c 10 0x4003ba test.c 10 0x4003c1 The interesting entries are those for lines 16 and 10 at address 0x4003ba, these represent the call to foo and the inlined body of foo. With the current line table sorting GDB builds the line table like this (as shown by 'maintenance info line-table'): INDEX LINE ADDRESS 0 14 0x00000000004003b0 1 15 0x00000000004003b0 2 10 0x00000000004003ba 3 16 0x00000000004003ba 4 END 0x00000000004003c1 5 4 0x00000000004004b0 6 5 0x00000000004004b0 7 END 0x00000000004004b7 Notice that entries 2 and 3 for lines 10 and 16 are now in a different order to the line table as given by the compiler. With this patch applied the order is now: INDEX LINE ADDRESS 0 14 0x00000000004003b0 1 15 0x00000000004003b0 2 16 0x00000000004003ba 3 10 0x00000000004003ba 4 END 0x00000000004003c1 5 4 0x00000000004004b0 6 5 0x00000000004004b0 7 END 0x00000000004004b7 Notice that entries 2 and 3 are now in their original order again. The consequence of the incorrect ordering is that when stepping through inlined functions GDB will display the wrong line for the inner most frame. Here's a GDB session before this patch is applied: Starting program: /home/andrew/tmp/inline/test Temporary breakpoint 1, main () at test.c:15 15 /* 15 */ global_var = 0; (gdb) step 16 /* 16 */ return foo (); (gdb) step foo () at test.c:16 16 /* 16 */ return foo (); (gdb) step bar () at test.c:5 5 /* 5 */ return global_var; The step from line 15 to 16 was fine, but the next step should have taken us to line 10, instead we are left at line 16. The final step to line 5 is as expected. With this patch applied the session goes better: Starting program: /home/andrew/tmp/inline/test Temporary breakpoint 1, main () at test.c:15 15 /* 15 */ global_var = 0; (gdb) step 16 /* 16 */ return foo (); (gdb) step foo () at test.c:10 10 /* 10 */ return bar (); (gdb) step bar () at test.c:5 5 /* 5 */ return global_var; We now visit the lines as 15, 16, 10, 5 as we would like. The reason for this issue is that the inline frame unwinder is detecting that foo is inlined in main. When we stop at the shared address 0x4003ba the inline frame unwinder first shows us the outer frame, this information is extracted from the DWARF's DW_TAG_inlined_subroutine entries and passed via GDB's block data. When we step again the inlined frame unwinder moves us up the call stack to the inner most frame at which point the frame is displayed as normal, with the location for the address being looked up in the line table. As GDB uses the last line table entry for an address as "the" line to report for that address it is critical that GDB maintain the order of the line table entries. In the first case, by reordering the line table we report the wrong location. I had to make a small adjustment in find_pc_sect_line in order to correctly find the previous line in the line table. In some line tables I was seeing an actual line entry and an end of sequence marker at the same address, before this commit these would reorder to move the end of sequence marker before the line entry (end of sequence has line number 0). Now the end of sequence marker remains in its correct location, and in order to find a previous line we should step backward over any end of sequence markers. As an example, the binary: gdb/testsuite/outputs/gdb.dwarf2/dw2-ranges-func/dw2-ranges-func-lo-cold Has this line table before the patch: INDEX LINE ADDRESS 0 48 0x0000000000400487 1 END 0x000000000040048e 2 52 0x000000000040048e 3 54 0x0000000000400492 4 56 0x0000000000400497 5 END 0x000000000040049a 6 62 0x000000000040049a 7 END 0x00000000004004a1 8 66 0x00000000004004a1 9 68 0x00000000004004a5 10 70 0x00000000004004aa 11 72 0x00000000004004b9 12 END 0x00000000004004bc 13 76 0x00000000004004bc 14 78 0x00000000004004c0 15 80 0x00000000004004c5 16 END 0x00000000004004cc And after this patch: INDEX LINE ADDRESS 0 48 0x0000000000400487 1 52 0x000000000040048e 2 END 0x000000000040048e 3 54 0x0000000000400492 4 56 0x0000000000400497 5 END 0x000000000040049a 6 62 0x000000000040049a 7 66 0x00000000004004a1 8 END 0x00000000004004a1 9 68 0x00000000004004a5 10 70 0x00000000004004aa 11 72 0x00000000004004b9 12 END 0x00000000004004bc 13 76 0x00000000004004bc 14 78 0x00000000004004c0 15 80 0x00000000004004c5 16 END 0x00000000004004cc When calling find_pc_sect_line with the address 0x000000000040048e, in both cases we find entry #3, we then try to find the previous entry, which originally found this entry '2 52 0x000000000040048e', after the patch it finds '2 END 0x000000000040048e', which cases the lookup to fail. By skipping the END marker after this patch we get back to the correct entry, which is now #1: '1 52 0x000000000040048e', and everything works again. gdb/ChangeLog: * buildsym.c (lte_is_less_than): Delete. (buildsym_compunit::end_symtab_with_blockvector): Create local lambda function to sort line table entries, and use std::stable_sort instead of std::sort. * symtab.c (find_pc_sect_line): Skip backward over end of sequence markers when looking for a previous line. gdb/testsuite/ChangeLog: * gdb.dwarf2/dw2-inline-stepping.c: New file. * gdb.dwarf2/dw2-inline-stepping.exp: New file. Change-Id: Ia0309494be4cfd9dcc554f30209477f5f040b21b
2020-01-13gdb: add back declarations for _initialize functionsSimon Marchi1-1/+2
I'd like to enable the -Wmissing-declarations warning. However, it warns for every _initialize function, for example: CXX dcache.o /home/smarchi/src/binutils-gdb/gdb/dcache.c: In function ‘void _initialize_dcache()’: /home/smarchi/src/binutils-gdb/gdb/dcache.c:688:1: error: no previous declaration for ‘void _initialize_dcache()’ [-Werror=missing-declarations] _initialize_dcache (void) ^~~~~~~~~~~~~~~~~~ The only practical way forward I found is to add back the declarations, which were removed by this commit: commit 481695ed5f6e0a8a9c9c50bfac1cdd2b3151e6c9 Author: John Baldwin <jhb@FreeBSD.org> Date: Sat Sep 9 11:02:37 2017 -0700 Remove unnecessary function prototypes. I don't think it's a big problem to have the declarations for these functions, but if anybody has a better solution for this, I'll be happy to use it. gdb/ChangeLog: * aarch64-fbsd-nat.c (_initialize_aarch64_fbsd_nat): Add declaration. * aarch64-fbsd-tdep.c (_initialize_aarch64_fbsd_tdep): Add declaration. * aarch64-linux-nat.c (_initialize_aarch64_linux_nat): Add declaration. * aarch64-linux-tdep.c (_initialize_aarch64_linux_tdep): Add declaration. * aarch64-newlib-tdep.c (_initialize_aarch64_newlib_tdep): Add declaration. * aarch64-tdep.c (_initialize_aarch64_tdep): Add declaration. * ada-exp.y (_initialize_ada_exp): Add declaration. * ada-lang.c (_initialize_ada_language): Add declaration. * ada-tasks.c (_initialize_tasks): Add declaration. * agent.c (_initialize_agent): Add declaration. * aix-thread.c (_initialize_aix_thread): Add declaration. * alpha-bsd-nat.c (_initialize_alphabsd_nat): Add declaration. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Add declaration. * alpha-linux-tdep.c (_initialize_alpha_linux_tdep): Add declaration. * alpha-nbsd-tdep.c (_initialize_alphanbsd_tdep): Add declaration. * alpha-obsd-tdep.c (_initialize_alphaobsd_tdep): Add declaration. * alpha-tdep.c (_initialize_alpha_tdep): Add declaration. * amd64-darwin-tdep.c (_initialize_amd64_darwin_tdep): Add declaration. * amd64-dicos-tdep.c (_initialize_amd64_dicos_tdep): Add declaration. * amd64-fbsd-nat.c (_initialize_amd64fbsd_nat): Add declaration. * amd64-fbsd-tdep.c (_initialize_amd64fbsd_tdep): Add declaration. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Add declaration. * amd64-linux-tdep.c (_initialize_amd64_linux_tdep): Add declaration. * amd64-nbsd-nat.c (_initialize_amd64nbsd_nat): Add declaration. * amd64-nbsd-tdep.c (_initialize_amd64nbsd_tdep): Add declaration. * amd64-obsd-nat.c (_initialize_amd64obsd_nat): Add declaration. * amd64-obsd-tdep.c (_initialize_amd64obsd_tdep): Add declaration. * amd64-sol2-tdep.c (_initialize_amd64_sol2_tdep): Add declaration. * amd64-tdep.c (_initialize_amd64_tdep): Add declaration. * amd64-windows-nat.c (_initialize_amd64_windows_nat): Add declaration. * amd64-windows-tdep.c (_initialize_amd64_windows_tdep): Add declaration. * annotate.c (_initialize_annotate): Add declaration. * arc-newlib-tdep.c (_initialize_arc_newlib_tdep): Add declaration. * arc-tdep.c (_initialize_arc_tdep): Add declaration. * arch-utils.c (_initialize_gdbarch_utils): Add declaration. * arm-fbsd-nat.c (_initialize_arm_fbsd_nat): Add declaration. * arm-fbsd-tdep.c (_initialize_arm_fbsd_tdep): Add declaration. * arm-linux-nat.c (_initialize_arm_linux_nat): Add declaration. * arm-linux-tdep.c (_initialize_arm_linux_tdep): Add declaration. * arm-nbsd-nat.c (_initialize_arm_netbsd_nat): Add declaration. * arm-nbsd-tdep.c (_initialize_arm_netbsd_tdep): Add declaration. * arm-obsd-tdep.c (_initialize_armobsd_tdep): Add declaration. * arm-pikeos-tdep.c (_initialize_arm_pikeos_tdep): Add declaration. * arm-symbian-tdep.c (_initialize_arm_symbian_tdep): Add declaration. * arm-tdep.c (_initialize_arm_tdep): Add declaration. * arm-wince-tdep.c (_initialize_arm_wince_tdep): Add declaration. * auto-load.c (_initialize_auto_load): Add declaration. * auxv.c (_initialize_auxv): Add declaration. * avr-tdep.c (_initialize_avr_tdep): Add declaration. * ax-gdb.c (_initialize_ax_gdb): Add declaration. * bfin-linux-tdep.c (_initialize_bfin_linux_tdep): Add declaration. * bfin-tdep.c (_initialize_bfin_tdep): Add declaration. * break-catch-sig.c (_initialize_break_catch_sig): Add declaration. * break-catch-syscall.c (_initialize_break_catch_syscall): Add declaration. * break-catch-throw.c (_initialize_break_catch_throw): Add declaration. * breakpoint.c (_initialize_breakpoint): Add declaration. * bsd-uthread.c (_initialize_bsd_uthread): Add declaration. * btrace.c (_initialize_btrace): Add declaration. * charset.c (_initialize_charset): Add declaration. * cli/cli-cmds.c (_initialize_cli_cmds): Add declaration. * cli/cli-dump.c (_initialize_cli_dump): Add declaration. * cli/cli-interp.c (_initialize_cli_interp): Add declaration. * cli/cli-logging.c (_initialize_cli_logging): Add declaration. * cli/cli-script.c (_initialize_cli_script): Add declaration. * cli/cli-style.c (_initialize_cli_style): Add declaration. * coff-pe-read.c (_initialize_coff_pe_read): Add declaration. * coffread.c (_initialize_coffread): Add declaration. * compile/compile-cplus-types.c (_initialize_compile_cplus_types): Add declaration. * compile/compile.c (_initialize_compile): Add declaration. * complaints.c (_initialize_complaints): Add declaration. * completer.c (_initialize_completer): Add declaration. * copying.c (_initialize_copying): Add declaration. * corefile.c (_initialize_core): Add declaration. * corelow.c (_initialize_corelow): Add declaration. * cp-abi.c (_initialize_cp_abi): Add declaration. * cp-namespace.c (_initialize_cp_namespace): Add declaration. * cp-support.c (_initialize_cp_support): Add declaration. * cp-valprint.c (_initialize_cp_valprint): Add declaration. * cris-linux-tdep.c (_initialize_cris_linux_tdep): Add declaration. * cris-tdep.c (_initialize_cris_tdep): Add declaration. * csky-linux-tdep.c (_initialize_csky_linux_tdep): Add declaration. * csky-tdep.c (_initialize_csky_tdep): Add declaration. * ctfread.c (_initialize_ctfread): Add declaration. * d-lang.c (_initialize_d_language): Add declaration. * darwin-nat-info.c (_initialize_darwin_info_commands): Add declaration. * darwin-nat.c (_initialize_darwin_nat): Add declaration. * dbxread.c (_initialize_dbxread): Add declaration. * dcache.c (_initialize_dcache): Add declaration. * disasm-selftests.c (_initialize_disasm_selftests): Add declaration. * disasm.c (_initialize_disasm): Add declaration. * dtrace-probe.c (_initialize_dtrace_probe): Add declaration. * dummy-frame.c (_initialize_dummy_frame): Add declaration. * dwarf-index-cache.c (_initialize_index_cache): Add declaration. * dwarf-index-write.c (_initialize_dwarf_index_write): Add declaration. * dwarf2-frame-tailcall.c (_initialize_tailcall_frame): Add declaration. * dwarf2-frame.c (_initialize_dwarf2_frame): Add declaration. * dwarf2expr.c (_initialize_dwarf2expr): Add declaration. * dwarf2loc.c (_initialize_dwarf2loc): Add declaration. * dwarf2read.c (_initialize_dwarf2_read): Add declaration. * elfread.c (_initialize_elfread): Add declaration. * exec.c (_initialize_exec): Add declaration. * extension.c (_initialize_extension): Add declaration. * f-lang.c (_initialize_f_language): Add declaration. * f-valprint.c (_initialize_f_valprint): Add declaration. * fbsd-nat.c (_initialize_fbsd_nat): Add declaration. * fbsd-tdep.c (_initialize_fbsd_tdep): Add declaration. * filesystem.c (_initialize_filesystem): Add declaration. * findcmd.c (_initialize_mem_search): Add declaration. * findvar.c (_initialize_findvar): Add declaration. * fork-child.c (_initialize_fork_child): Add declaration. * frame-base.c (_initialize_frame_base): Add declaration. * frame-unwind.c (_initialize_frame_unwind): Add declaration. * frame.c (_initialize_frame): Add declaration. * frv-linux-tdep.c (_initialize_frv_linux_tdep): Add declaration. * frv-tdep.c (_initialize_frv_tdep): Add declaration. * ft32-tdep.c (_initialize_ft32_tdep): Add declaration. * gcore.c (_initialize_gcore): Add declaration. * gdb-demangle.c (_initialize_gdb_demangle): Add declaration. * gdb_bfd.c (_initialize_gdb_bfd): Add declaration. * gdbarch-selftests.c (_initialize_gdbarch_selftests): Add declaration. * gdbarch.c (_initialize_gdbarch): Add declaration. * gdbtypes.c (_initialize_gdbtypes): Add declaration. * gnu-nat.c (_initialize_gnu_nat): Add declaration. * gnu-v2-abi.c (_initialize_gnu_v2_abi): Add declaration. * gnu-v3-abi.c (_initialize_gnu_v3_abi): Add declaration. * go-lang.c (_initialize_go_language): Add declaration. * go32-nat.c (_initialize_go32_nat): Add declaration. * guile/guile.c (_initialize_guile): Add declaration. * h8300-tdep.c (_initialize_h8300_tdep): Add declaration. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Add declaration. * hppa-linux-tdep.c (_initialize_hppa_linux_tdep): Add declaration. * hppa-nbsd-nat.c (_initialize_hppanbsd_nat): Add declaration. * hppa-nbsd-tdep.c (_initialize_hppanbsd_tdep): Add declaration. * hppa-obsd-nat.c (_initialize_hppaobsd_nat): Add declaration. * hppa-obsd-tdep.c (_initialize_hppabsd_tdep): Add declaration. * hppa-tdep.c (_initialize_hppa_tdep): Add declaration. * i386-bsd-nat.c (_initialize_i386bsd_nat): Add declaration. * i386-cygwin-tdep.c (_initialize_i386_cygwin_tdep): Add declaration. * i386-darwin-nat.c (_initialize_i386_darwin_nat): Add declaration. * i386-darwin-tdep.c (_initialize_i386_darwin_tdep): Add declaration. * i386-dicos-tdep.c (_initialize_i386_dicos_tdep): Add declaration. * i386-fbsd-nat.c (_initialize_i386fbsd_nat): Add declaration. * i386-fbsd-tdep.c (_initialize_i386fbsd_tdep): Add declaration. * i386-gnu-nat.c (_initialize_i386gnu_nat): Add declaration. * i386-gnu-tdep.c (_initialize_i386gnu_tdep): Add declaration. * i386-go32-tdep.c (_initialize_i386_go32_tdep): Add declaration. * i386-linux-nat.c (_initialize_i386_linux_nat): Add declaration. * i386-linux-tdep.c (_initialize_i386_linux_tdep): Add declaration. * i386-nbsd-nat.c (_initialize_i386nbsd_nat): Add declaration. * i386-nbsd-tdep.c (_initialize_i386nbsd_tdep): Add declaration. * i386-nto-tdep.c (_initialize_i386nto_tdep): Add declaration. * i386-obsd-nat.c (_initialize_i386obsd_nat): Add declaration. * i386-obsd-tdep.c (_initialize_i386obsd_tdep): Add declaration. * i386-sol2-nat.c (_initialize_amd64_sol2_nat): Add declaration. * i386-sol2-tdep.c (_initialize_i386_sol2_tdep): Add declaration. * i386-tdep.c (_initialize_i386_tdep): Add declaration. * i386-windows-nat.c (_initialize_i386_windows_nat): Add declaration. * ia64-libunwind-tdep.c (_initialize_libunwind_frame): Add declaration. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Add declaration. * ia64-linux-tdep.c (_initialize_ia64_linux_tdep): Add declaration. * ia64-tdep.c (_initialize_ia64_tdep): Add declaration. * ia64-vms-tdep.c (_initialize_ia64_vms_tdep): Add declaration. * infcall.c (_initialize_infcall): Add declaration. * infcmd.c (_initialize_infcmd): Add declaration. * inflow.c (_initialize_inflow): Add declaration. * infrun.c (_initialize_infrun): Add declaration. * interps.c (_initialize_interpreter): Add declaration. * iq2000-tdep.c (_initialize_iq2000_tdep): Add declaration. * jit.c (_initialize_jit): Add declaration. * language.c (_initialize_language): Add declaration. * linux-fork.c (_initialize_linux_fork): Add declaration. * linux-nat.c (_initialize_linux_nat): Add declaration. * linux-tdep.c (_initialize_linux_tdep): Add declaration. * linux-thread-db.c (_initialize_thread_db): Add declaration. * lm32-tdep.c (_initialize_lm32_tdep): Add declaration. * m2-lang.c (_initialize_m2_language): Add declaration. * m32c-tdep.c (_initialize_m32c_tdep): Add declaration. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Add declaration. * m32r-linux-tdep.c (_initialize_m32r_linux_tdep): Add declaration. * m32r-tdep.c (_initialize_m32r_tdep): Add declaration. * m68hc11-tdep.c (_initialize_m68hc11_tdep): Add declaration. * m68k-bsd-nat.c (_initialize_m68kbsd_nat): Add declaration. * m68k-bsd-tdep.c (_initialize_m68kbsd_tdep): Add declaration. * m68k-linux-nat.c (_initialize_m68k_linux_nat): Add declaration. * m68k-linux-tdep.c (_initialize_m68k_linux_tdep): Add declaration. * m68k-tdep.c (_initialize_m68k_tdep): Add declaration. * machoread.c (_initialize_machoread): Add declaration. * macrocmd.c (_initialize_macrocmd): Add declaration. * macroscope.c (_initialize_macroscope): Add declaration. * maint-test-options.c (_initialize_maint_test_options): Add declaration. * maint-test-settings.c (_initialize_maint_test_settings): Add declaration. * maint.c (_initialize_maint_cmds): Add declaration. * mdebugread.c (_initialize_mdebugread): Add declaration. * memattr.c (_initialize_mem): Add declaration. * mep-tdep.c (_initialize_mep_tdep): Add declaration. * mi/mi-cmd-env.c (_initialize_mi_cmd_env): Add declaration. * mi/mi-cmds.c (_initialize_mi_cmds): Add declaration. * mi/mi-interp.c (_initialize_mi_interp): Add declaration. * mi/mi-main.c (_initialize_mi_main): Add declaration. * microblaze-linux-tdep.c (_initialize_microblaze_linux_tdep): Add declaration. * microblaze-tdep.c (_initialize_microblaze_tdep): Add declaration. * mips-fbsd-nat.c (_initialize_mips_fbsd_nat): Add declaration. * mips-fbsd-tdep.c (_initialize_mips_fbsd_tdep): Add declaration. * mips-linux-nat.c (_initialize_mips_linux_nat): Add declaration. * mips-linux-tdep.c (_initialize_mips_linux_tdep): Add declaration. * mips-nbsd-nat.c (_initialize_mipsnbsd_nat): Add declaration. * mips-nbsd-tdep.c (_initialize_mipsnbsd_tdep): Add declaration. * mips-sde-tdep.c (_initialize_mips_sde_tdep): Add declaration. * mips-tdep.c (_initialize_mips_tdep): Add declaration. * mips64-obsd-nat.c (_initialize_mips64obsd_nat): Add declaration. * mips64-obsd-tdep.c (_initialize_mips64obsd_tdep): Add declaration. * mipsread.c (_initialize_mipsread): Add declaration. * mn10300-linux-tdep.c (_initialize_mn10300_linux_tdep): Add declaration. * mn10300-tdep.c (_initialize_mn10300_tdep): Add declaration. * moxie-tdep.c (_initialize_moxie_tdep): Add declaration. * msp430-tdep.c (_initialize_msp430_tdep): Add declaration. * nds32-tdep.c (_initialize_nds32_tdep): Add declaration. * nios2-linux-tdep.c (_initialize_nios2_linux_tdep): Add declaration. * nios2-tdep.c (_initialize_nios2_tdep): Add declaration. * nto-procfs.c (_initialize_procfs): Add declaration. * objc-lang.c (_initialize_objc_language): Add declaration. * observable.c (_initialize_observer): Add declaration. * opencl-lang.c (_initialize_opencl_language): Add declaration. * or1k-linux-tdep.c (_initialize_or1k_linux_tdep): Add declaration. * or1k-tdep.c (_initialize_or1k_tdep): Add declaration. * osabi.c (_initialize_gdb_osabi): Add declaration. * osdata.c (_initialize_osdata): Add declaration. * p-valprint.c (_initialize_pascal_valprint): Add declaration. * parse.c (_initialize_parse): Add declaration. * ppc-fbsd-nat.c (_initialize_ppcfbsd_nat): Add declaration. * ppc-fbsd-tdep.c (_initialize_ppcfbsd_tdep): Add declaration. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Add declaration. * ppc-linux-tdep.c (_initialize_ppc_linux_tdep): Add declaration. * ppc-nbsd-nat.c (_initialize_ppcnbsd_nat): Add declaration. * ppc-nbsd-tdep.c (_initialize_ppcnbsd_tdep): Add declaration. * ppc-obsd-nat.c (_initialize_ppcobsd_nat): Add declaration. * ppc-obsd-tdep.c (_initialize_ppcobsd_tdep): Add declaration. * printcmd.c (_initialize_printcmd): Add declaration. * probe.c (_initialize_probe): Add declaration. * proc-api.c (_initialize_proc_api): Add declaration. * proc-events.c (_initialize_proc_events): Add declaration. * proc-service.c (_initialize_proc_service): Add declaration. * procfs.c (_initialize_procfs): Add declaration. * producer.c (_initialize_producer): Add declaration. * psymtab.c (_initialize_psymtab): Add declaration. * python/python.c (_initialize_python): Add declaration. * ravenscar-thread.c (_initialize_ravenscar): Add declaration. * record-btrace.c (_initialize_record_btrace): Add declaration. * record-full.c (_initialize_record_full): Add declaration. * record.c (_initialize_record): Add declaration. * regcache-dump.c (_initialize_regcache_dump): Add declaration. * regcache.c (_initialize_regcache): Add declaration. * reggroups.c (_initialize_reggroup): Add declaration. * remote-notif.c (_initialize_notif): Add declaration. * remote-sim.c (_initialize_remote_sim): Add declaration. * remote.c (_initialize_remote): Add declaration. * reverse.c (_initialize_reverse): Add declaration. * riscv-fbsd-nat.c (_initialize_riscv_fbsd_nat): Add declaration. * riscv-fbsd-tdep.c (_initialize_riscv_fbsd_tdep): Add declaration. * riscv-linux-nat.c (_initialize_riscv_linux_nat): Add declaration. * riscv-linux-tdep.c (_initialize_riscv_linux_tdep): Add declaration. * riscv-tdep.c (_initialize_riscv_tdep): Add declaration. * rl78-tdep.c (_initialize_rl78_tdep): Add declaration. * rs6000-aix-tdep.c (_initialize_rs6000_aix_tdep): Add declaration. * rs6000-lynx178-tdep.c (_initialize_rs6000_lynx178_tdep): Add declaration. * rs6000-nat.c (_initialize_rs6000_nat): Add declaration. * rs6000-tdep.c (_initialize_rs6000_tdep): Add declaration. * run-on-main-thread.c (_initialize_run_on_main_thread): Add declaration. * rust-exp.y (_initialize_rust_exp): Add declaration. * rx-tdep.c (_initialize_rx_tdep): Add declaration. * s12z-tdep.c (_initialize_s12z_tdep): Add declaration. * s390-linux-nat.c (_initialize_s390_nat): Add declaration. * s390-linux-tdep.c (_initialize_s390_linux_tdep): Add declaration. * s390-tdep.c (_initialize_s390_tdep): Add declaration. * score-tdep.c (_initialize_score_tdep): Add declaration. * ser-go32.c (_initialize_ser_dos): Add declaration. * ser-mingw.c (_initialize_ser_windows): Add declaration. * ser-pipe.c (_initialize_ser_pipe): Add declaration. * ser-tcp.c (_initialize_ser_tcp): Add declaration. * ser-uds.c (_initialize_ser_socket): Add declaration. * ser-unix.c (_initialize_ser_hardwire): Add declaration. * serial.c (_initialize_serial): Add declaration. * sh-linux-tdep.c (_initialize_sh_linux_tdep): Add declaration. * sh-nbsd-nat.c (_initialize_shnbsd_nat): Add declaration. * sh-nbsd-tdep.c (_initialize_shnbsd_tdep): Add declaration. * sh-tdep.c (_initialize_sh_tdep): Add declaration. * skip.c (_initialize_step_skip): Add declaration. * sol-thread.c (_initialize_sol_thread): Add declaration. * solib-aix.c (_initialize_solib_aix): Add declaration. * solib-darwin.c (_initialize_darwin_solib): Add declaration. * solib-dsbt.c (_initialize_dsbt_solib): Add declaration. * solib-frv.c (_initialize_frv_solib): Add declaration. * solib-svr4.c (_initialize_svr4_solib): Add declaration. * solib-target.c (_initialize_solib_target): Add declaration. * solib.c (_initialize_solib): Add declaration. * source-cache.c (_initialize_source_cache): Add declaration. * source.c (_initialize_source): Add declaration. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Add declaration. * sparc-linux-tdep.c (_initialize_sparc_linux_tdep): Add declaration. * sparc-nat.c (_initialize_sparc_nat): Add declaration. * sparc-nbsd-nat.c (_initialize_sparcnbsd_nat): Add declaration. * sparc-nbsd-tdep.c (_initialize_sparcnbsd_tdep): Add declaration. * sparc-obsd-tdep.c (_initialize_sparc32obsd_tdep): Add declaration. * sparc-sol2-tdep.c (_initialize_sparc_sol2_tdep): Add declaration. * sparc-tdep.c (_initialize_sparc_tdep): Add declaration. * sparc64-fbsd-nat.c (_initialize_sparc64fbsd_nat): Add declaration. * sparc64-fbsd-tdep.c (_initialize_sparc64fbsd_tdep): Add declaration. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Add declaration. * sparc64-linux-tdep.c (_initialize_sparc64_linux_tdep): Add declaration. * sparc64-nat.c (_initialize_sparc64_nat): Add declaration. * sparc64-nbsd-nat.c (_initialize_sparc64nbsd_nat): Add declaration. * sparc64-nbsd-tdep.c (_initialize_sparc64nbsd_tdep): Add declaration. * sparc64-obsd-nat.c (_initialize_sparc64obsd_nat): Add declaration. * sparc64-obsd-tdep.c (_initialize_sparc64obsd_tdep): Add declaration. * sparc64-sol2-tdep.c (_initialize_sparc64_sol2_tdep): Add declaration. * sparc64-tdep.c (_initialize_sparc64_adi_tdep): Add declaration. * stabsread.c (_initialize_stabsread): Add declaration. * stack.c (_initialize_stack): Add declaration. * stap-probe.c (_initialize_stap_probe): Add declaration. * std-regs.c (_initialize_frame_reg): Add declaration. * symfile-debug.c (_initialize_symfile_debug): Add declaration. * symfile-mem.c (_initialize_symfile_mem): Add declaration. * symfile.c (_initialize_symfile): Add declaration. * symmisc.c (_initialize_symmisc): Add declaration. * symtab.c (_initialize_symtab): Add declaration. * target.c (_initialize_target): Add declaration. * target-connection.c (_initialize_target_connection): Add declaration. * target-dcache.c (_initialize_target_dcache): Add declaration. * target-descriptions.c (_initialize_target_descriptions): Add declaration. * thread.c (_initialize_thread): Add declaration. * tic6x-linux-tdep.c (_initialize_tic6x_linux_tdep): Add declaration. * tic6x-tdep.c (_initialize_tic6x_tdep): Add declaration. * tilegx-linux-nat.c (_initialize_tile_linux_nat): Add declaration. * tilegx-linux-tdep.c (_initialize_tilegx_linux_tdep): Add declaration. * tilegx-tdep.c (_initialize_tilegx_tdep): Add declaration. * tracectf.c (_initialize_ctf): Add declaration. * tracefile-tfile.c (_initialize_tracefile_tfile): Add declaration. * tracefile.c (_initialize_tracefile): Add declaration. * tracepoint.c (_initialize_tracepoint): Add declaration. * tui/tui-hooks.c (_initialize_tui_hooks): Add declaration. * tui/tui-interp.c (_initialize_tui_interp): Add declaration. * tui/tui-layout.c (_initialize_tui_layout): Add declaration. * tui/tui-regs.c (_initialize_tui_regs): Add declaration. * tui/tui-stack.c (_initialize_tui_stack): Add declaration. * tui/tui-win.c (_initialize_tui_win): Add declaration. * tui/tui.c (_initialize_tui): Add declaration. * typeprint.c (_initialize_typeprint): Add declaration. * ui-style.c (_initialize_ui_style): Add declaration. * unittests/array-view-selftests.c (_initialize_array_view_selftests): Add declaration. * unittests/child-path-selftests.c (_initialize_child_path_selftests): Add declaration. * unittests/cli-utils-selftests.c (_initialize_cli_utils_selftests): Add declaration. * unittests/common-utils-selftests.c (_initialize_common_utils_selftests): Add declaration. * unittests/copy_bitwise-selftests.c (_initialize_copy_bitwise_utils_selftests): Add declaration. * unittests/environ-selftests.c (_initialize_environ_selftests): Add declaration. * unittests/filtered_iterator-selftests.c (_initialize_filtered_iterator_selftests): Add declaration. * unittests/format_pieces-selftests.c (_initialize_format_pieces_selftests): Add declaration. * unittests/function-view-selftests.c (_initialize_function_view_selftests): Add declaration. * unittests/help-doc-selftests.c (_initialize_help_doc_selftests): Add declaration. * unittests/lookup_name_info-selftests.c (_initialize_lookup_name_info_selftests): Add declaration. * unittests/main-thread-selftests.c (_initialize_main_thread_selftests): Add declaration. * unittests/memory-map-selftests.c (_initialize_memory_map_selftests): Add declaration. * unittests/memrange-selftests.c (_initialize_memrange_selftests): Add declaration. * unittests/mkdir-recursive-selftests.c (_initialize_mkdir_recursive_selftests): Add declaration. * unittests/observable-selftests.c (_initialize_observer_selftest): Add declaration. * unittests/offset-type-selftests.c (_initialize_offset_type_selftests): Add declaration. * unittests/optional-selftests.c (_initialize_optional_selftests): Add declaration. * unittests/parse-connection-spec-selftests.c (_initialize_parse_connection_spec_selftests): Add declaration. * unittests/rsp-low-selftests.c (_initialize_rsp_low_selftests): Add declaration. * unittests/scoped_fd-selftests.c (_initialize_scoped_fd_selftests): Add declaration. * unittests/scoped_mmap-selftests.c (_initialize_scoped_mmap_selftests): Add declaration. * unittests/scoped_restore-selftests.c (_initialize_scoped_restore_selftests): Add declaration. * unittests/string_view-selftests.c (_initialize_string_view_selftests): Add declaration. * unittests/style-selftests.c (_initialize_style_selftest): Add declaration. * unittests/tracepoint-selftests.c (_initialize_tracepoint_selftests): Add declaration. * unittests/tui-selftests.c (_initialize_tui_selftest): Add declaration. * unittests/unpack-selftests.c (_initialize_unpack_selftests): Add declaration. * unittests/utils-selftests.c (_initialize_utils_selftests): Add declaration. * unittests/vec-utils-selftests.c (_initialize_vec_utils_selftests): Add declaration. * unittests/xml-utils-selftests.c (_initialize_xml_utils): Add declaration. * user-regs.c (_initialize_user_regs): Add declaration. * utils.c (_initialize_utils): Add declaration. * v850-tdep.c (_initialize_v850_tdep): Add declaration. * valops.c (_initialize_valops): Add declaration. * valprint.c (_initialize_valprint): Add declaration. * value.c (_initialize_values): Add declaration. * varobj.c (_initialize_varobj): Add declaration. * vax-bsd-nat.c (_initialize_vaxbsd_nat): Add declaration. * vax-nbsd-tdep.c (_initialize_vaxnbsd_tdep): Add declaration. * vax-tdep.c (_initialize_vax_tdep): Add declaration. * windows-nat.c (_initialize_windows_nat): Add declaration. (_initialize_check_for_gdb_ini): Add declaration. (_initialize_loadable): Add declaration. * windows-tdep.c (_initialize_windows_tdep): Add declaration. * x86-bsd-nat.c (_initialize_x86_bsd_nat): Add declaration. * x86-linux-nat.c (_initialize_x86_linux_nat): Add declaration. * xcoffread.c (_initialize_xcoffread): Add declaration. * xml-support.c (_initialize_xml_support): Add declaration. * xstormy16-tdep.c (_initialize_xstormy16_tdep): Add declaration. * xtensa-linux-nat.c (_initialize_xtensa_linux_nat): Add declaration. * xtensa-linux-tdep.c (_initialize_xtensa_linux_tdep): Add declaration. * xtensa-tdep.c (_initialize_xtensa_tdep): Add declaration. Change-Id: I13eec7e0ed2b3c427377a7bdb055cf46da64def9
2020-01-09Fix memory leak of the demangled symbol nameChristian Biesinger1-9/+13
compute_and_set_names would only free the name if we did not find the name in the hashtable, but it needs to always free it. Solve this by moving the smart pointer outside the if. Thanks to PhilippeW for finding this. gdb/ChangeLog: 2020-01-09 Christian Biesinger <cbiesinger@google.com> * symtab.c (general_symbol_info::compute_and_set_names): Move the unique_xmalloc_ptr outside the if to always free the demangled name. Change-Id: Id7c6b8408432183700ccb5ff634818d6c5a3ac95
2020-01-08Change section_offsets to a std::vectorTom Tromey1-8/+6
This changes section_offsets to be specialization of a std::vector and updates all the users. It also removes the ANOFFSET and SIZEOF_N_SECTION_OFFSETS macros. Most of this is just a generic sort of cleanup, that reduces the number of lines of code. However, a couple spots were doing weird things. objfile_relocate did: - std::vector<struct section_offsets> - new_debug_offsets (SIZEOF_N_SECTION_OFFSETS (debug_objfile->num_sections)); ... which seems to greatly over-estimate the number of elements needed. This appeared in set_objfile_default_section_offset: - std::vector<struct section_offsets> offsets (objf->num_sections, - { { offset } }); ... which makes sense due to type safety, but is also actively confusing given that section_offsets was previously also a kind of vector type. Tested on x86-64 Fedora 30. gdb/ChangeLog 2020-01-08 Tom Tromey <tromey@adacore.com> * xcoffread.c (enter_line_range, read_xcoff_symtab) (process_xcoff_symbol, xcoff_symfile_offsets): Update. * symtab.h (MSYMBOL_VALUE_ADDRESS): Update. (struct section_offsets, ANOFFSET, SIZEOF_N_SECTION_OFFSETS): Remove. (section_offsets): New typedef. * symtab.c (fixup_section, get_msymbol_address): Update. * symmisc.c (dump_msymbols): Update. * symfile.h (relative_addr_info_to_section_offsets) (symfile_map_offsets_to_segments): Update. * symfile.c (build_section_addr_info_from_objfile) (init_objfile_sect_indices): Update. (struct place_section_arg): Change type of "offsets". (place_section): Update. (relative_addr_info_to_section_offsets): Change type of "section_offsets". Remove "num_sections" parameter. (default_symfile_offsets, syms_from_objfile_1) (set_objfile_default_section_offset): Update. (reread_symbols): No need to preserve section offsets by hand. (symfile_map_offsets_to_segments): Change type of "offsets". * stap-probe.c (relocate_address): Update. * stabsread.h (process_one_symbol): Update. * solib-target.c (struct lm_info_target) <offsets>: Change type. (solib_target_relocate_section_addresses): Update. * solib-svr4.c (enable_break, svr4_relocate_main_executable): Update. * solib-frv.c (frv_relocate_main_executable): Update. * solib-dsbt.c (dsbt_relocate_main_executable): Update. * solib-aix.c (solib_aix_get_section_offsets): Change return type. (solib_aix_solib_create_inferior_hook): Update. * remote.c (remote_target::get_offsets): Update. * psymtab.c (find_pc_sect_psymtab): Update. * psympriv.h (struct partial_symbol) <address, text_low, text_high>: Update. * objfiles.h (obj_section_offset): Update. (struct objfile) <section_offsets>: Change type. <num_sections>: Remove. (objfile_relocate): Update. * objfiles.c (entry_point_address_query): Update (relocate_one_symbol): Change type of "section_offsets". (objfile_relocate1, objfile_relocate1): Change type of "new_offsets". (objfile_rebase1): Update. * mipsread.c (mipscoff_symfile_read): Update. (read_alphacoff_dynamic_symtab): Remove "section_offsets" parameter. * mdebugread.c (parse_symbol): Change type of "section_offsets". (parse_external, psymtab_to_symtab_1): Update. * machoread.c (macho_symfile_offsets): Update. * ia64-tdep.c (ia64_find_unwind_table): Update. * hppa-tdep.c (read_unwind_info): Update. * hppa-bsd-tdep.c (hppabsd_find_global_pointer): Update. * dwarf2read.c (create_addrmap_from_index) (create_addrmap_from_aranges, dw2_find_pc_sect_compunit_symtab) (process_psymtab_comp_unit_reader, add_partial_symbol) (add_partial_subprogram, process_full_comp_unit) (read_file_scope, read_func_scope, read_lexical_block_scope) (read_call_site_scope, dwarf2_rnglists_process) (dwarf2_ranges_process, dwarf2_ranges_read) (dwarf_decode_lines_1, var_decode_location, new_symbol) (dwarf2_fetch_die_loc_sect_off, dwarf2_per_cu_text_offset): Update. * dwarf2-frame.c (execute_cfa_program, dwarf2_frame_find_fde): Update. * dtrace-probe.c (dtrace_probe::get_relocated_address): Update. * dbxread.c (read_dbx_symtab, read_ofile_symtab): Update. (process_one_symbol): Change type of "section_offsets". * ctfread.c (get_objfile_text_range): Update. * coffread.c (coff_symtab_read, enter_linenos) (process_coff_symbol): Update. * coff-pe-read.c (add_pe_forwarded_sym): Update. * amd64-windows-tdep.c (amd64_windows_find_unwind_info): Update. Change-Id: I147eb967e9b44d82f4048039de7bb44b80cd72fb
2020-01-01Update copyright year range in all GDB files.Joel Brobecker1-1/+1
gdb/ChangeLog: Update copyright year range in all GDB files.
2019-12-27Make symbol_set_names a member functionChristian Biesinger1-22/+22
This also renames it to make it clearer that this is not a cheap function (to compute_and_set_names). Also renames name to m_name to make the implementation of the renamed function more readable. Most of the places that access sym->m_name directly were also changed to call linkage_name () instead, to make it clearer which name they are accessing. gdb/ChangeLog: 2019-12-26 Christian Biesinger <cbiesinger@google.com> * ada-lang.c (ada_decode_symbol): Update. * buildsym.c (add_symbol_to_list): Update. * coffread.c (process_coff_symbol): Update. * ctfread.c (ctf_add_enum_member_cb): Update. (new_symbol): Update. (ctf_add_var_cb): Update. * dwarf2read.c (fixup_go_packaging): Update. (dwarf2_compute_name): Update. (new_symbol): Update. * jit.c (finalize_symtab): Update. * language.c (language_alloc_type_symbol): Update. * mdebugread.c (new_symbol): Update. * minsyms.c (minimal_symbol_reader::record_full): Update. (minimal_symbol_reader::install): Update. * psymtab.c (print_partial_symbols): Update. (psymbol_hash): Update. (psymbol_compare): Update. (add_psymbol_to_bcache): Update. (maintenance_check_psymtabs): Update. * stabsread.c (define_symbol): Update. * symtab.c (symbol_set_names): Rename to... (general_symbol_info::compute_and_set_names): ...this. (general_symbol_info::natural_name): Update. (general_symbol_info::search_name): Update. (fixup_section): Update. * symtab.h (struct general_symbol_info) <name>: Rename to... <m_name>: ...this. <compute_and_set_names>: Rename from... (symbol_set_names): ...this. (SYMBOL_SET_NAMES): Remove. (struct symbol) <ctor>: Update. Change-Id: I8da1f10cab4e0b89f19d5750fa4e6e2ac8d2b24f
2019-12-16Use a member function to set a symbol's languageChristian Biesinger1-9/+7
This removes symbol_set_language and SYMBOL_SET_LANGUAGE in favor of a new function general_symbol_info::set_language. symbol and minimal_symbol already inherit from that struct so this works naturally. gdb/ChangeLog: 2019-12-15 Christian Biesinger <cbiesinger@google.com> * ada-exp.y (write_ambiguous_var): Update. * coffread.c (process_coff_symbol): Update. * ctfread.c (ctf_add_enum_member_cb): Update. (new_symbol): Update. * dwarf2read.c (fixup_go_packaging): Update. (new_symbol): Update. * language.c (language_alloc_type_symbol): Update. * mdebugread.c (new_symbol): Update. * minsyms.c (minimal_symbol_reader::record_full): Update. * psymtab.c (add_psymbol_to_bcache): Update. * stabsread.c (define_symbol): Update. (read_enum_type): Update. * symtab.c (symbol_set_language): Make this a member function... (general_symbol_info::set_language): ... here. * symtab.h (struct general_symbol_info) <set_language>: New function. (SYMBOL_SET_LANGUAGE): Remove. (symbol_set_language): Remove. Change-Id: Ideafb6c384004b9adef793a1192735c501da41d5
2019-12-16Use an accessor function for general_symbol_info::languageChristian Biesinger1-31/+29
Also renames the member variable to m_language to make code easier to read when more functions become member functions. I was originally hoping to eventually make m_language private (after a few more patches), but unfortunately then it no longer counts as a POD type, which means gdbsupport/poison.h won't let us use memset to initialize this type, which psymtabs rely on to clear padding bytes so that bcache can work properly. gdb/ChangeLog: 2019-12-15 Christian Biesinger <cbiesinger@google.com> * ada-lang.c (ada_add_block_symbols): Update. (ada_collect_symbol_completion_matches): Update. * ax-gdb.c (gen_expr): Update. * block.c (block_lookup_symbol): Update. (block_lookup_symbol_primary): Update. (block_find_symbol): Update. * cp-namespace.c (cp_lookup_symbol_imports_or_template): Update. * dbxread.c (process_one_symbol): Update. * dictionary.c (insert_symbol_hashed): Update. (collate_pending_symbols_by_language): Update. (mdict_add_symbol): Update. * dwarf-index-write.c (write_psymbols): Update. * dwarf2read.c (fixup_go_packaging): Update. * findvar.c (read_var_value): Update. * ft32-tdep.c (ft32_skip_prologue): Update. * go-lang.c (go_symbol_package_name): Update. * language.h (scoped_switch_to_sym_language_if_auto:: scoped_switch_to_sym_language_if_auto): Update. * linespec.c (find_method): Update. (find_label_symbols_in_block): Update. * mdebugread.c (parse_symbol): Update. * mi/mi-cmd-stack.c (list_arg_or_local): Update. * minsyms.c (add_minsym_to_demangled_hash_table): Update. (minimal_symbol_reader::install): Update. * moxie-tdep.c (moxie_skip_prologue): Update. * parse.c (parse_exp_in_context): Update. * psymtab.c (psymbol_name_matches): Update. (match_partial_symbol): Update. (lookup_partial_symbol): Update. (psymbol_hash): Update. (psymbol_compare): Update. * python/py-framefilter.c (extract_sym): Update. (py_print_single_arg): Update. * stabsread.c (define_symbol): Update. * stack.c (print_frame_arg): Update. (find_frame_funname): Update. (info_frame_command_core): Update. * symfile.c (set_initial_language): Update. * symtab.c (symbol_set_demangled_name): Update. (symbol_get_demangled_name): Update. (symbol_set_language): Update. (symbol_find_demangled_name): Update. (symbol_set_names): Update. (general_symbol_info::natural_name): Update. (general_symbol_info::demangled_name): Update. (general_symbol_info::search_name): Update. (symbol_matches_search_name): Update. (eq_symbol_entry): Update. (iterate_over_symbols): Update. (completion_list_add_symbol): Update. (completion_list_add_msymbol): Update. (completion_list_add_fields): Update. * symtab.h (struct general_symbol_info) <language>: New function. <language>: Rename to... <m_language>: ...this. (SYMBOL_LANGUAGE): Remove. (MSYMBOL_LANGUAGE): Remove. (struct symbol) <ctor>: Update. * xstormy16-tdep.c (xstormy16_skip_prologue): Update. Change-Id: I6464d477457e61639c63ddf8b145e407a35c235a
2019-12-04gdb/mi: Add -max-results parameter to some -symbol-info-* commandsAndrew Burgess1-22/+31
Adds a new parameter -max-results to -symbol-info-functions, -symbol-info-variables, -symbol-info-types, and -symbol-info-modules. This parameter limits the number of results returned. This change still leaves -symbol-info-module-functions and -symbol-info-module-variables always returning all results, fixing these commands is slightly harder. There's currently no mechanism for the user of these commands to know if the result list has been truncated if you get back the maximum number of results, so if there are exactly 10 functions and you call '-symbol-info-functions --max-results 10' the reply would appear no different than if you had 20 functions and called with a max of 10. Right now, if you get back the maximum then you should assume that there might be more results available. One other thing to note is that the global_symbol_searcher::search by default returns SIZE_MAX results, there's no longer a mechanism to return an unlimited number of results, though hopefully this will not be a huge issue. gdb/ChangeLog: * mi/mi-symbol-cmds.c (mi_symbol_info): Take extra parameter, and add it into the search spec. (parse_max_results_option): New function. (mi_info_functions_or_variables): Parse -max-results flag and pass it to mi_symbol_info. (mi_cmd_symbol_info_modules): Likewise. (mi_cmd_symbol_info_types): Likewise. * symtab.c (global_symbol_searcher::add_matching_symbols): Change return type to bool, change result container into a set, and don't add new results if we have enough already. (global_symbol_searcher::add_matching_msymbols): Change return type to bool, and don't add new results if we have enough already. (sort_search_symbols_remove_dups): Delete. (global_symbol_searcher::search): Early exit from search loop when we have enough results. Use a std::set to collect the results from calling add_matching_symbols. * symtab.h (global_symbol_searcher) <set_max_seach_results>: New member function. (global_symbol_searcher) <m_max_search_results>: New member variable. (global_symbol_searcher) <add_matching_symbols>: Update header comment and change return type to bool. (global_symbol_searcher) <add_matching_msymbols>: Update header comment and change return type to bool. gdb/doc/ChangeLog: * doc/gdb.texinfo (GDB/MI Symbol Query): Add documentation of -max-results to some -symbol-info-* commands. gdb/testsuite/ChangeLog: * gdb.mi/mi-sym-info.exp: Add tests for -max-results parameter. Change-Id: I90a28feb55b388fb46461a096c5db08b6b0bd427
2019-12-04gdb: Split global symbol search into separate functionsAndrew Burgess1-195/+231
In preparation for the next commit, this commit restructures the code by splitting global_symbol_searcher::search into separate functions. There should be no functional changes after this commit. gdb/ChangeLog: * symtab.c (symbol_search::compare_search_syms): Update header comment. (global_symbol_searcher::is_suitable_msymbol): New function. (global_symbol_searcher::expand_symtabs): New function. (global_symbol_searcher::add_matching_symbols): New function. (global_symbol_searcher::add_matching_msymbols): New function. (global_symbol_searcher::search): Move most of the content into the new functions above, and call them as needed. * symtab.h (global_symbol_searcher) <expand_symtabs>: New member function. (global_symbol_searcher) <add_matching_symbols>: New member function. (global_symbol_searcher) <add_matching_msymbols>: New member function. (global_symbol_searcher) <is_suitable_msymbol>: New member function. Change-Id: I06b26920f35c268f7a38d8203dc2c2813aa501c6
2019-12-03Fix leak of symbol name in block_symbol_cachePhilippe Waroquiers1-14/+27
A symbol not found inserted in the cache has a xstrdup-ed name that must be freed, but only the struct block_symbol_cache is freed. Add a function destroy_block_symbol_cache that clears all slots before releasing the cache. 2019-12-03 Philippe Waroquiers <philippe.waroquiers@skynet.be> * symtab.c (symbol_cache_clear_slot): Move close to cleared type. (destroy_block_symbol_cache): New function. (symbol_cache:~symbol_cache) Call destroy_block_symbol_cache. (resize_symbol_cache): Likewise.
2019-11-27Precompute hash value for symbol_set_namesChristian Biesinger1-3/+6
We can also compute the hash for the mangled name on a background thread so make this function even faster (about a 7% speedup). gdb/ChangeLog: 2019-11-27 Christian Biesinger <cbiesinger@google.com> * minsyms.c (minimal_symbol_reader::install): Also compute the hash of the mangled name on the background thread. * symtab.c (symbol_set_names): Allow passing in the hash of the linkage_name. * symtab.h (symbol_set_names): Likewise. Change-Id: I044449e7eb60cffc1c43efd3412f2b485bd9faac
2019-11-27gdb: Split print_symbol_info into two partsAndrew Burgess1-34/+56
Split the function print_symbol_info into two parts, the new worker core returns a string, which print_symbol_info then prints. This will be useful in a later commit when some new MI commands will be added which will use the worker core to fill some MI output fields. There should be no user visible changes after this commit. gdb/ChangeLog: * symtab.c (symbol_to_info_string): New function, most content moved from print_symbol_info, but updated to return a std::string. (print_symbol_info): Update to use symbol_to_info_string and print returned string. * symtab.h (symbol_to_info_string): Declare new function. Change-Id: I6454ce43cacb61d32fbadb9e3655e70823085777
2019-11-27gdb: Introduce global_symbol_searcherAndrew Burgess1-92/+69
Introduce a new class to wrap up the parameters needed for the function search_symbols, which has now become a member function of this new class. The motivation is that search_symbols already takes a lot of parameters, and a future commit is going to add even more. This commit hopefully makes collecting the state required for a search easier. As part of this conversion the list of filenames in which to search has been converted to a std::vector. There should be no user visible changes after this commit. gdb/ChangeLog: * python/python.c (gdbpy_rbreak): Convert to using global_symbol_searcher. * symtab.c (file_matches): Convert return type to bool, change file list to std::vector, update header comment. (search_symbols): Rename to... (global_symbol_searcher::search): ...this and update now its a member function of global_symbol_searcher. Take account of the changes to file_matches. (symtab_symbol_info): Convert to using global_symbol_searcher. (rbreak_command): Likewise. (search_module_symbols): Likewise. * symtab.h (enum symbol_search): Update comment. (search_symbols): Remove declaration. (class global_symbol_searcher): New class. Change-Id: I488ab292a892d9e9e84775c632c5f198b6ad3710
2019-11-26Demangle minsyms in parallelTom Tromey1-9/+12
This patch introduces a simple parallel for_each and changes the minimal symbol reader to use it when computing the demangled name for a minimal symbol. This yields a speedup when reading minimal symbols. 2019-11-26 Christian Biesinger <cbiesinger@google.com> Tom Tromey <tom@tromey.com> * minsyms.c (minimal_symbol_reader::install): Use parallel_for_each. * gdbsupport/parallel-for.h: New file. * Makefile.in (HFILES_NO_SRCDIR): Add gdbsupport/parallel-for.h. Change-Id: I220341f70e94dd02df5dd424272c50a5afb64978
2019-11-26Remove unused rbreak_command_wrapper and other declarationsSimon Marchi1-8/+0
rbreak_command_wrapper is unused, so remove it. And while at it, remove other declarations around it. gdb/ChangeLog: * breakpoint.h (hbreak_command_wrapper, thbreak_command_wrapper, rbreak_command_wrapper): Remove. * symtab.c (rbreak_command_wrapper): Remove. Change-Id: If9782f205e4913f8dfc5beeaa526544f25e099c6
2019-11-22Replace SYMBOL_*_NAME accessors with member functionsChristian Biesinger1-21/+19
Similar to the MSYMBOL version of this patch, improves readability and will eventually allow making name private. gdb/ChangeLog: 2019-11-22 Christian Biesinger <cbiesinger@google.com> * ada-exp.y: Update. * ada-lang.c (sort_choices): Update. (ada_print_symbol_signature): Update. (resolve_subexp): Update. (ada_parse_renaming): Update. (ada_read_renaming_var_value): Update. (lesseq_defined_than): Update. (remove_extra_symbols): Update. (remove_irrelevant_renamings): Update. (ada_add_block_symbols): Update. (ada_collect_symbol_completion_matches): Update. (ada_is_renaming_symbol): Update. (aggregate_assign_from_choices): Update. (ada_evaluate_subexp): Update. (ada_has_this_exception_support): Update. (ada_is_non_standard_exception_sym): Update. (ada_add_exceptions_from_frame): Update. (ada_add_global_exceptions): Update. (ada_print_subexp): Update. * ax-gdb.c (gen_var_ref): Update. (gen_maybe_namespace_elt): Update. (gen_expr_for_cast): Update. (gen_expr): Update. * block.h: Update. * blockframe.c (find_pc_partial_function): Update. * breakpoint.c (print_breakpoint_location): Update. (update_static_tracepoint): Update. * btrace.c (ftrace_print_function_name): Update. (ftrace_function_switched): Update. * buildsym.c (find_symbol_in_list): Update. * c-exp.y: Update. * c-typeprint.c (c_print_typedef): Update. (c_type_print_template_args): Update. * cli/cli-cmds.c (edit_command): Update. (list_command): Update. (print_sal_location): Update. * coffread.c (patch_opaque_types): Update. (process_coff_symbol): Update. (coff_read_enum_type): Update. * compile/compile-c-symbols.c (c_symbol_substitution_name): Update. (convert_one_symbol): Update. (hash_symname): Update. (eq_symname): Update. * compile/compile-cplus-symbols.c (convert_one_symbol): Update. * compile/compile-cplus-types.c (debug_print_scope): Update. * compile/compile-loc2c.c (do_compile_dwarf_expr_to_c): Update. * compile/compile-object-load.c (get_out_value_type): Update. * cp-namespace.c (cp_scan_for_anonymous_namespaces): Update. (search_symbol_list): Update. (cp_lookup_symbol_imports_or_template): Update. * cp-support.c (overload_list_add_symbol): Update. * ctfread.c (psymtab_to_symtab): Update. * dbxread.c (cp_set_block_scope): Update. * dictionary.c (iter_match_first_hashed): Update. (iter_match_next_hashed): Update. (insert_symbol_hashed): Update. (iter_match_next_linear): Update. * dictionary.h: Update. * dwarf2loc.c (func_get_frame_base_dwarf_block): Update. (locexpr_describe_location_piece): Update. (locexpr_describe_location_1): Update. (locexpr_generate_c_location): Update. (loclist_describe_location): Update. (loclist_generate_c_location): Update. * dwarf2read.c (dw2_debug_names_lookup_symbol): Update. (read_func_scope): Update. (process_enumeration_scope): Update. (new_symbol): Update. (dwarf2_const_value): Update. (dwarf2_symbol_mark_computed): Update. * eval.c (evaluate_funcall): Update. (evaluate_subexp_standard): Update. * expprint.c (print_subexp_standard): Update. (dump_subexp_body_standard): Update. * f-valprint.c (info_common_command_for_block): Update. * findvar.c (get_hosting_frame): Update. (default_read_var_value): Update. * go-lang.c (go_symbol_package_name): Update. * guile/scm-block.c (bkscm_print_block_smob): Update. * guile/scm-symbol.c (syscm_print_symbol_smob): Update. (gdbscm_symbol_name): Update. (gdbscm_symbol_linkage_name): Update. (gdbscm_symbol_print_name): Update. * infcall.c (get_function_name): Update. * infcmd.c (jump_command): Update. (finish_command): Update. * infrun.c (insert_exception_resume_breakpoint): Update. * linespec.c (canonicalize_linespec): Update. (create_sals_line_offset): Update. (convert_linespec_to_sals): Update. (complete_label): Update. (find_label_symbols_in_block): Update. * m2-typeprint.c (m2_print_typedef): Update. * mdebugread.c (mdebug_reg_to_regnum): Update. (parse_symbol): Update. (mylookup_symbol): Update. * mi/mi-cmd-stack.c (list_arg_or_local): Update. (list_args_or_locals): Update. * objc-lang.c (compare_selectors): Update. (info_selectors_command): Update. (compare_classes): Update. (info_classes_command): Update. (find_imps): Update. * p-typeprint.c (pascal_print_typedef): Update. * printcmd.c (build_address_symbolic): Update. (info_address_command): Update. (print_variable_and_value): Update. * python/py-framefilter.c (extract_sym): Update. (py_print_single_arg): Update. * python/py-symbol.c (sympy_str): Update. (sympy_get_name): Update. (sympy_get_linkage_name): Update. * python/python.c (gdbpy_rbreak): Update. * record-btrace.c (btrace_get_bfun_name): Update. (btrace_call_history): Update. * rust-lang.c (rust_print_typedef): Update. * solib-frv.c (frv_fdpic_find_canonical_descriptor): Update. * stabsread.c (stab_reg_to_regnum): Update. (define_symbol): Update. (read_enum_type): Update. (common_block_end): Update. (cleanup_undefined_types_1): Update. (scan_file_globals): Update. * stack.c (print_frame_arg): Update. (print_frame_args): Update. (find_frame_funname): Update. (info_frame_command_core): Update. (iterate_over_block_locals): Update. (print_block_frame_labels): Update. (do_print_variable_and_value): Update. (iterate_over_block_arg_vars): Update. (return_command): Update. * symmisc.c (dump_symtab_1): Update. (print_symbol): Update. * symtab.c (eq_symbol_entry): Update. (symbol_cache_dump): Update. (lookup_language_this): Update. (find_pc_sect_line): Update. (skip_prologue_sal): Update. (symbol_search::compare_search_syms): Update. (treg_matches_sym_type_name): Update. (search_symbols): Update. (print_symbol_info): Update. (rbreak_command): Update. (completion_list_add_symbol): Update. (find_gnu_ifunc): Update. (get_symbol_address): Update. (search_module_symbols): Update. (info_module_subcommand): Update. * symtab.h (SYMBOL_NATURAL_NAME): Remove. (SYMBOL_LINKAGE_NAME): Remove. (SYMBOL_DEMANGLED_NAME): Remove. (SYMBOL_PRINT_NAME): Remove. (SYMBOL_SEARCH_NAME): Remove. * tracepoint.c (set_traceframe_context): Update. (validate_actionline): Update. (collection_list::collect_symbol): Update. (encode_actions_1): Update. (info_scope_command): Update. (print_one_static_tracepoint_marker): Update. * typeprint.c (typedef_hash_table::add_template_parameters): Update. * valops.c (address_of_variable): Update. (find_overload_match): Update. (find_oload_champ): Update. Change-Id: I76bdc8b44eea6876bf03af9d351f8e90cc0154b2
2019-11-22Replace the MSYMBOL_*_NAME macros with member functionsChristian Biesinger1-38/+30
Improves readability. In the future, it will also allow making the name private, once the name setter functions become member functions. gdb/ChangeLog: 2019-11-22 Christian Biesinger <cbiesinger@google.com> * ada-lang.c (ada_lookup_simple_minsym): Update. (ada_collect_symbol_completion_matches): Update. * ada-tasks.c (read_atcb): Update. * amd64-windows-tdep.c (amd64_skip_main_prologue): Update. (amd64_windows_skip_trampoline_code): Update. * arm-tdep.c (skip_prologue_function): Update. (arm_skip_stack_protector): Update. * arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update. (arm_wince_skip_main_prologue): Update. * ax-gdb.c (gen_expr): Update. * block.c (call_site_for_pc): Update. * blockframe.c (find_pc_partial_function): Update. * breakpoint.c (set_breakpoint_location_function): Update. * btrace.c (ftrace_print_function_name): Update. (ftrace_function_switched): Update. * c-valprint.c (print_unpacked_pointer): Update. * coffread.c (coff_symfile_read): Update. * compile/compile-c-symbols.c (convert_symbol_bmsym): Update. * compile/compile-cplus-symbols.c (convert_symbol_bmsym): Update. * dwarf-index-write.c (write_psymbols): Update. * dwarf2loc.c (call_site_to_target_addr): Update. (func_verify_no_selftailcall): Update. (tailcall_dump): Update. (call_site_find_chain_1): Update. (dwarf_expr_reg_to_entry_parameter): Update. * elfread.c (elf_gnu_ifunc_record_cache): Update. * eval.c (evaluate_funcall): Update. (evaluate_subexp_standard): Update. (evaluate_subexp_for_sizeof): Update. * expprint.c (print_subexp_standard): Update. (dump_subexp_body_standard): Update. * frame.c (get_prev_frame_always_1): Update. * frv-tdep.c (frv_skip_main_prologue): Update. * gnu-v2-abi.c (gnuv2_value_rtti_type): Update. * gnu-v3-abi.c (gnuv3_rtti_type): Update. (gnuv3_get_typename_from_type_info): Update. (gnuv3_skip_trampoline): Update. * hppa-tdep.c (hppa_lookup_stub_minimal_symbol): Update. * i386-tdep.c (i386_skip_main_prologue): Update. (i386_pe_skip_trampoline_code): Update. * ia64-tdep.c (ia64_convert_from_func_ptr_addr): Update. * infcall.c (get_function_name): Update. * linespec.c (minsym_found): Update. * linux-fork.c (info_checkpoints_command): Update. * m32c-tdep.c (m32c_m16c_address_to_pointer): Update. (m32c_m16c_pointer_to_address): Update. * maint.c (maintenance_translate_address): Update. * minsyms.c (add_minsym_to_hash_table): Update. (add_minsym_to_demangled_hash_table): Update. (lookup_minimal_symbol_mangled): Update. (lookup_minimal_symbol_demangled): Update. (lookup_minimal_symbol_linkage): Update. (lookup_minimal_symbol_text): Update. (lookup_minimal_symbol_by_pc_name): Update. (minimal_symbol_is_less_than): Update. (compact_minimal_symbols): Update. (build_minimal_symbol_hash_tables): Update. (find_solib_trampoline_target): Update. * mips-tdep.c (mips_stub_frame_sniffer): Update. (mips_skip_pic_trampoline_code): Update. * msp430-tdep.c (msp430_skip_trampoline_code): Update. * objc-lang.c (info_selectors_command): Update. (info_classes_command): Update. (find_methods): Update. (find_imps): Update. * p-valprint.c (pascal_val_print): Update. * ppc-linux-tdep.c (powerpc_linux_in_dynsym_resolve_code): Update. * ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update. * printcmd.c (build_address_symbolic): Update. (info_symbol_command): Update. * psymtab.c (psymbol_name_matches): Update. (match_partial_symbol): Update. (lookup_partial_symbol): Update. (print_partial_symbols): Update. (sort_pst_symbols): Update. (maintenance_check_psymtabs): Update. * python/py-framefilter.c (py_print_frame): Update. * python/python.c (gdbpy_rbreak): Update. * record-btrace.c (btrace_get_bfun_name): Update. (btrace_call_history): Update. * rs6000-tdep.c (rs6000_skip_main_prologue): Update. (rs6000_skip_trampoline_code): Update. * sol-thread.c (info_cb): Update. * stabsread.c (scan_file_globals): Update. * stack.c (find_frame_funname): Update. (info_frame_command_core): Update. * symmisc.c (dump_msymbols): Update. * symtab.c (symbol_natural_name): Rename to.., (general_symbol_info::natural_name): ...this. (symbol_demangled_name): Rename to... (general_symbol_info::demangled_name): ...this. (symbol_search_name): Rename to... (general_symbol_info::search_name): ...this. (symbol_matches_search_name): Update. (find_pc_sect_line): Update. (skip_prologue_sal): Update. (search_symbols): Update. (print_msymbol_info): Update. (rbreak_command): Update. (completion_list_add_msymbol): Update. (completion_list_objc_symbol): Update. (get_msymbol_address): Update. * symtab.h (struct general_symbol_info): Add member functions natural_name (), linkage_name (), print_name (), demangled_name (), and search_name (). (SYMBOL_NATURAL_NAME): Update. (symbol_natural_name): Move to a member function on general_symbol_info. (SYMBOL_DEMANGLED_NAME): Update. (symbol_demangled_name): Move to a member function on general_symbol_info. (SYMBOL_SEARCH_NAME): Update. (symbol_search_name): Move to a member function on general_symbol_info. (MSYMBOL_NATURAL_NAME): Remove. (MSYMBOL_LINKAGE_NAME): Remove. (MSYMBOL_PRINT_NAME): Remove. (MSYMBOL_DEMANGLED_NAME): Remove. (MSYMBOL_SEARCH_NAME): Remove. * x86-tdep.c (x86_in_indirect_branch_thunk): Update. Change-Id: I65aa529843a9903e174ce799037e41f954a9fcee
2019-11-22Create a correctly-sized demangled names hashtableChristian Biesinger1-2/+12
If we have a minsym count, we know the demangled names hashtable will be at least that big. So use that count to size it, so we don't have to resize/rehash it as much. This is a 6% improvement in minsym loading time. 2019-11-22 Christian Biesinger <cbiesinger@google.com> * symtab.c (create_demangled_names_hash): Use per_bfd-> minimal_symbol_count for computing the initial size, if greater than our default size. Change-Id: I1f074d38e1d90af58705ec852f90c84cc034cd2e
2019-11-12Make struct symbol inherit from general_symbol_infoChristian Biesinger1-19/+8
Since this is now no longer a POD, also give it a constructor that initializes all fields. (I have considered overloading operator new to zero-initialize the memory instead; let me know if you prefer that) gdb/ChangeLog: 2019-11-12 Christian Biesinger <cbiesinger@google.com> * ada-exp.y (write_ambiguous_var): Update. * buildsym.c (add_symbol_to_list): Update. * dwarf2read.c (read_variable): Update. (new_symbol): Update. * jit.c (finalize_symtab): Update. * language.c (language_alloc_type_symbol): Update. * symtab.c (fixup_symbol_section): Update. (initialize_objfile_symbol_1): Move code to... (initialize_objfile_symbol): ...here. Remove now-unnecessary memset. (allocate_symbol): Update. (allocate_template_symbol): Update. (get_symbol_address): Update. * symtab.h (struct symbol): Inherit from general_symbol_info instead of having as a field, and add a constructor. (SYMBOL_VALUE): Update. (SYMBOL_VALUE_ADDRESS): Update. (SET_SYMBOL_VALUE_ADDRESS): Update. (SYMBOL_VALUE_BYTES): Update. (SYMBOL_VALUE_COMMON_BLOCK): Update. (SYMBOL_BLOCK_VALUE): Update. (SYMBOL_VALUE_CHAIN): Update. (SYMBOL_LANGUAGE): Update. (SYMBOL_SECTION): Update. (SYMBOL_OBJ_SECTION): Update. (SYMBOL_SET_LANGUAGE): Update. (SYMBOL_SET_LINKAGE_NAME): Update. (SYMBOL_SET_NAMES): Update. (SYMBOL_NATURAL_NAME): Update. (SYMBOL_LINKAGE_NAME): Update. (SYMBOL_DEMANGLED_NAME): Update. (SYMBOL_SEARCH_NAME): Update. (SYMBOL_MATCHES_SEARCH_NAME): Update. (struct symbol): Update. (struct template_symbol): Update. (struct rust_vtable_symbol): Update. * xcoffread.c (SYMBOL_DUP): Update. Change-Id: I05b1628455bcce3efaa101e65ef051708d17eb07
2019-10-31gdb: Don't print a newline in language la_print_typedef methodsAndrew Burgess1-4/+2
When calling the language la_print_typedef method, don't include a newline at the end, instead print the newline from the users of la_print_typedef. This change will be useful in a later commit when the output from la_print_typedef will be placed into an MI output field, in which case the trailing newline is not required. There should be no user visible changes after this commit. gdb/ChangeLog: * ada-typeprint.c (ada_print_typedef): Don't print newline at the end. * c-typeprint.c (c_print_typedef): Likewise. * f-typeprint.c (f_print_typedef): Likewise. * m2-typeprint.c (m2_print_typedef): Likewise. * p-typeprint.c (pascal_print_typedef): Likewise. * rust-lang.c (rust_print_typedef): Likewise. * symtab.c (print_symbol_info): Print a newline after calling typedef_print. Change-Id: I6e697ea1ec0eadaa31aefaea959b2055188d680d
2019-10-31gdb: Add new commands to list module variables and functionsAndrew Burgess1-0/+348
This patch adds two new commands "info module functions" and "info module variables". These commands list all of the functions and variables grouped by module and then by file. For example: (gdb) info module functions All functions in all modules: Module "mod1": File /some/path/gdb/testsuite/gdb.fortran/info-types.f90: 35: void mod1::__copy_mod1_M1t1(Type m1t1, Type m1t1); 25: void mod1::sub_m1_a(integer(kind=4)); 31: integer(kind=4) mod1::sub_m1_b(void); Module "mod2": File /some/path/gdb/testsuite/gdb.fortran/info-types.f90: 41: void mod2::sub_m2_a(integer(kind=4), logical(kind=4)); 49: logical(kind=4) mod2::sub_m2_b(real(kind=4)); The new commands take set of flags that allow the output to be filtered, the user can filter by variable/function name, type, or containing module. As GDB doesn't currently track the relationship between a module and the variables or functions within it in the symbol table, so I filter based on the module prefix in order to find the functions or variables in each module. What this makes clear is that a user could get this same information using "info variables" and simply provide the prefix themselves, for example: (gdb) info module functions -m mod1 _a All functions matching regular expression "_a", in all modules matching regular expression "mod1": Module "mod1": File /some/path/gdb/testsuite/gdb.fortran/info-types.f90: 25: void mod1::sub_m1_a(integer(kind=4)); Is similar to: (gdb) info functions mod1::.*_a.* All functions matching regular expression "mod1::.*_a": File /some/path/gdb/testsuite/gdb.fortran/info-types.f90: 25: void mod1::sub_m1_a(integer(kind=4)); The benefits I see for a separate command are that the user doesn't have to think (or know) about the module prefix format, nor worry about building a proper regexp. The user can also easily scan across modules without having to build complex regexps. The new function search_module_symbols is extern in this patch despite only being used within symtab.c, this is because a later patch in this series will also be using this function from outside symtab.c. This patch is a new implementation of an idea originally worked on by Mark O'Connor, Chris January, David Lecomber, and Xavier Oro from ARM. gdb/ChangeLog: * symtab.c (info_module_cmdlist): New variable. (info_module_command): New function. (search_module_symbols): New function. (info_module_subcommand): New function. (struct info_modules_var_func_options): New struct. (info_modules_var_func_options_defs): New variable. (make_info_modules_var_func_options_def_group): New function. (info_module_functions_command): New function. (info_module_variables_command): New function. (info_module_var_func_command_completer): New function. (_initialize_symtab): Register new 'info module functions' and 'info module variables' commands. * symtab.h (typedef symbol_search_in_module): New typedef. (search_module_symbols): Declare new function. * NEWS: Mention new commands. gdb/doc/ChangeLog: * gdb.texinfo (Symbols): Document new 'info module variables' and 'info module functions' commands. gdb/testsuite/ChangeLog: * gdb.fortran/info-modules.exp: Update expected results, and add additional tests for 'info module functinos', and 'info module variables'. * gdb.fortran/info-types.exp: Update expected results. * gdb.fortran/info-types.f90: Extend testcase with additional module variables and functions. Change-Id: I8c2960640e2e101b77eff54027d687e21ec22e2b
2019-10-31gdb/fortran: Add new 'info modules' commandAndrew Burgess1-4/+33
Add a new command 'info modules' that lists all of the modules GDB knows about from the debug information. A module is a debugging entity in the DWARF defined with DW_TAG_module, currently Fortran is known to use this tag for its modules. I'm not aware of any other language that currently makes use of DW_TAG_module. The output style is similar to the 'info type' output: (gdb) info modules All defined modules: File info-types.f90: 16: mod1 24: mod2 (gdb) Where the user is told the file the module is defined in and, on the left hand side, the line number at which the module is defined along with the name of the module. This patch is a new implementation of an idea originally worked on by Mark O'Connor, Chris January, David Lecomber, and Xavier Oro from ARM. gdb/ChangeLog: * dwarf2read.c (dw2_symtab_iter_next): Handle MODULE_DOMAIN. (dw2_expand_marked_cus): Handle MODULES_DOMAIN. (dw2_debug_names_iterator::next): Handle MODULE_DOMAIN and MODULES_DOMAIN. (scan_partial_symbols): Only create partial module symbols for non declarations. * psymtab.c (recursively_search_psymtabs): Handle MODULE_DOMAIN and MODULES_DOMAIN. * symtab.c (search_domain_name): Likewise. (search_symbols): Likewise. (print_symbol_info): Likewise. (symtab_symbol_info): Likewise. (info_modules_command): New function. (_initialize_symtab): Register 'info modules' command. * symtab.h (enum search_domain): Add MODULES_DOMAIN. * NEWS: Mention new 'info modules' command. gdb/doc/ChangeLog: * gdb.texinfo (Symbols): Document new 'info modules' command. gdb/testsuite/ChangeLog: * gdb.fortran/info-modules.exp: New file. * gdb.fortran/info-types.exp: Build with new file. * gdb.fortran/info-types.f90: Include and use new module. * gdb.fortran/info-types-2.f90: New file. Change-Id: I2b781dd5a06bcad04620ccdc45f01a0f711adfad
2019-10-29Change some arguments to gdb::string_view instead of name+lenChristian Biesinger1-18/+19
Just some code cleanup. This change has a few benefits: - Shorter argument list in the functions - If the caller needs to calculate the string, they no longer need to explicitly call strlen - It is easy to pass std::string to this (done in one place currently) This also updates a couple of places that were passing 0/1 to a bool parameter. gdb/ChangeLog: 2019-10-29 Christian Biesinger <cbiesinger@google.com> * coffread.c (record_minimal_symbol): Update. (process_coff_symbol): Update. * dbxread.c (read_dbx_symtab): Update. * dwarf2read.c (add_partial_symbol): Update. (fixup_go_packaging): Update. (load_partial_dies): Update. (new_symbol): Update. * elfread.c (record_minimal_symbol): Change signature to use gdb::string_view instead of name+len. (elf_symtab_read): Update. (elf_rel_plt_read): Update. * mdebugread.c (parse_partial_symbols): Update. (handle_psymbol_enumerators): Update. (new_symbol): Update. * minsyms.c (minimal_symbol_reader::record_full): Change signature to use gdb::string_view instead of name+len. * minsyms.h (class minimal_symbol_reader) <record_full>: Likewise. * psympriv.h (add_psymbol_to_list): Likewise. * psymtab.c (add_psymbol_to_bcache): Likewise. (add_psymbol_to_list): Likewise. * stabsread.c (define_symbol): Update. * symtab.c (symbol_set_names): Change signature to use gdb::string_view. * symtab.h (SYMBOL_SET_NAMES): Likewise. (symbol_set_names): Likewise. * xcoffread.c (scan_xcoff_symtab): Update. Change-Id: I2675c6865e0368f9c755a1081088a53aa54dda4c
2019-10-29Only make a nullterminated string if we need toChristian Biesinger1-18/+19
As of 7bb43059820c5febb4509b15202a93efde442bc6, we no longer need a nullterminated linkage_name to look up the entry in the hash table. So this patch makes it so we only make the copy if the entry was not found. By auditing all callers of symbol_set_names, I found out that all cases where the string may not be nullterminated already pass true for COPY_NAME. So here, I am documenting that as a requirement and am removing the code that relies on undefined behavior in symbol_set_names (it accessed the string past the provided length to check for nulltermination). Note that the Ada case at the beginning of symbol_set_names was already relying on this. gdb/ChangeLog: 2019-10-29 Christian Biesinger <cbiesinger@google.com> * symtab.h (symbol_set_names): Document that copy_name must be set to true for non-nullterminated strings. * symtab.c (symbol_set_names): Only make a nullterminated copy of linkage_name if the entry was not found and we need to demangle. Change-Id: I183302e1f51483ff6dff0fd5c3b0f32f0f04a5d2
2019-10-25Revert unintentional change in symtab.cChristian Biesinger1-1/+1
In the previous commit, I accidentally changed the wrong line; this reverts it to what it should be. gdb/ChangeLog: 2019-10-25 Christian Biesinger <cbiesinger@google.com> * symtab.c (symbol_set_names): Revert unintentional change in the Ada case. Change-Id: I9abf174927687e74c7435bd4607aab7f248c6e79
2019-10-25Don't make an extra copy + allocation of the demangled nameChristian Biesinger1-25/+13
We can just keep around the malloc()-ed name we got from bfd and free it later. gdb/ChangeLog: 2019-10-25 Christian Biesinger <cbiesinger@google.com> * symtab.c (struct demangled_name_entry): Change demangled name to a unique_xmalloc_ptr<char>, now that we don't allocate it as part of the struct anymore. (symbol_set_names): No longer obstack allocate + copy the demangled name, just store the allocated name from bfd. Change-Id: Ie6ad50e1e1e73509f55d756f0a437897bb93e3b0
2019-10-23[gdb/breakpoints] Fix fullname.exp when run from symlink dirTom de Vries1-0/+3
I run into this error with gdb.base/fullname.exp: ... (gdb) file /data/gdb_versions/devel/build/gdb/testsuite/outputs/\ gdb.base/fullname/fullname Reading symbols from /data/gdb_versions/devel/build/gdb/testsuite/outputs/\ gdb.base/fullname/fullname... (gdb) break /data/gdb_versions/devel/build/gdb/testsuite/\ outputs/gdb.base/fullname/tmp-fullname.c:21 No source file named /data/gdb_versions/devel/build/gdb/testsuite/outputs/\ gdb.base/fullname/tmp-fullname.c. Make breakpoint pending on future shared library load? (y or [n]) n (gdb) FAIL: gdb.base/fullname.exp: set breakpoint by full path before loading symbols - built relative ... The FAIL is due to this comparison in iterate_over_some_symtabs failing: ... 481 if (FILENAME_CMP (real_path, fullname) == 0) (gdb) p real_path $2 = 0x1a201f0 "/data/gdb_versions/devel/build/gdb/testsuite/outputs/\ gdb.base/fullname/tmp-fullname.c" (gdb) p fullname $3 = 0x1a1de80 "/home/vries/gdb_versions/devel/build/gdb/testsuite/outputs/\ gdb.base/fullname/tmp-fullname.c" ... The difference in pathnames is due to having a symlink dir: ... $ ls -la /home/vries/gdb_versions lrwxrwxrwx 1 vries users 18 26 jun 2018 /home/vries/gdb_versions -> /data/gdb_versions ... and the test passses when eliminating it: ... $ ( cd $(pwd -P); make check RUNTESTFLAGS=gdb.base/fullname.exp ) ... The FAIL is a regression from commit a0c1ffedcf1 "Only compute realpath when basenames_may_differ is set". Before, find_and_open_source was returning a real-path, resulting in variable 'fullname' being the same as varible 'real_path' in the comparison listed above. But after, that's no longer the case. Fix the FAIL by applying gdb_realpath on the fullname variable before the comparison. Tested on x86_64-linux. I wasn't able to write a test-case. The FAIL starts at: ... $ cd build/gdb $ mv testsuite testsuite.bla $ ln -s testsuite.bla testsuite ... but already this doesn't trigger it anymore: ... $ cd build/gdb/outputs $ mv outputs outputs.bla $ ln -s outputs.bla outputs ... gdb/ChangeLog: 2019-10-23 Tom de Vries <tdevries@suse.de> PR breakpoints/24687 * symtab.c (iterate_over_some_symtabs): Apply gdb_realpath on fullname. Change-Id: I1ace62a234458781e958980f3b425edf1490df27
2019-10-22Make demangled_name_entry::language not a bitfieldChristian Biesinger1-1/+1
Having it as a bitfield causes extra work, and this is not memory-sensitive. Furthermore, once https://sourceware.org/ml/gdb-patches/2019-10/msg00812.html lands, the bitfield won't even save any memory at all. gdb/ChangeLog: 2019-10-22 Christian Biesinger <cbiesinger@google.com> * symtab.c (struct demangled_name_entry) <language>: Change from bitfield to regular variable. Change-Id: I4ea31d1cfcbe0f09a09bd058cd304862308dc388
2019-10-22Fix compile error & incorrect pushChristian Biesinger1-5/+18
I accidentally pushed the wrong version of the patch for commit 7bb43059820c5febb4509b15202a93efde442bc6 (where the review comments were not fixed), and I did a bad conflict resolution for ccb1ba62299edce72053dd567b9d384814e11885 leading to a compile error when libxxhash is available. This fixes both issues. gdb/ChangeLog: 2019-10-22 Christian Biesinger <cbiesinger@google.com> * symtab.c (struct demangled_name_entry): Add a constructor. (free_demangled_name_entry): New function to call the destructor for demangled_name_entry. (create_demangled_names_hash): Pass free_demangled_name_entry to htab_create_alloc. (symbol_set_names): Call placement new for demangled_name_entry. * utils.c: No longer include xxhash.h here, now that fast_hash is inlined in the header. * utils.h: Instead, include it here. Change-Id: If776099d39a65a12733d42efcb859feca1b07a39
2019-10-22Add a fast_hash function in common-utilsChristian Biesinger1-1/+2
Also updates a caller in symtab.c. For now this just calls htab_hash_string but the next patch will change it to xxhash, if available. gdb/ChangeLog: 2019-10-22 Christian Biesinger <cbiesinger@google.com> * utils.h (fast_hash): New function. * symtab.c (hash_demangled_name_entry): Call new function fast_hash. Change-Id: I77cac0d9aa78fc65316a2af449f52edcae72dc9b
2019-10-22Store the mangled name as a string_viewChristian Biesinger1-7/+8
This should be a bit faster (because we can compare the size first), but it is also a dependency for the next patch. (3.47% of gdb startup time is spent in eq_demangled_name_entry when attaching to Chrome's content_shell binary) gdb/ChangeLog: 2019-10-22 Christian Biesinger <cbiesinger@google.com> * symtab.c (struct demangled_name_entry): Change type of mangled to gdb::string_view. Also adds a constructor that takes the mangled name. (hash_demangled_name_entry): Update. (eq_demangled_name_entry): Update. (free_demangled_name_entry): New function to call the destructor now that this is not a POD anymore. (create_demangled_names_hash): Pass free_demangled_name_entry to htab_create_alloc. (symbol_set_names): Update. Change-Id: I24711ae2bcaa9e79ca89a6f8fda385d400419175
2019-10-18[gdb] Fix more typos in commentsTom de Vries1-1/+1
Fix typos in comments. NFC. Tested on x86_64-linux. gdb/ChangeLog: 2019-10-18 Tom de Vries <tdevries@suse.de> * aarch64-tdep.c: Fix typos in comments. * ada-lang.c: Same. * ada-tasks.c: Same. * alpha-tdep.c: Same. * alpha-tdep.h: Same. * amd64-nat.c: Same. * amd64-windows-tdep.c: Same. * arc-tdep.c: Same. * arc-tdep.h: Same. * arch-utils.c: Same. * arm-nbsd-tdep.c: Same. * arm-tdep.c: Same. * ax-gdb.c: Same. * blockframe.c: Same. * btrace.c: Same. * c-varobj.c: Same. * coff-pe-read.c: Same. * coffread.c: Same. * cris-tdep.c: Same. * darwin-nat.c: Same. * dbxread.c: Same. * dcache.c: Same. * disasm.c: Same. * dtrace-probe.c: Same. * dwarf-index-write.c: Same. * dwarf2-frame-tailcall.c: Same. * dwarf2-frame.c: Same. * dwarf2read.c: Same. * eval.c: Same. * exceptions.c: Same. * fbsd-tdep.c: Same. * findvar.c: Same. * frame.c: Same. * frv-tdep.c: Same. * gnu-v3-abi.c: Same. * go32-nat.c: Same. * h8300-tdep.c: Same. * hppa-tdep.c: Same. * i386-linux-tdep.c: Same. * i386-tdep.c: Same. * ia64-libunwind-tdep.c: Same. * ia64-tdep.c: Same. * infcmd.c: Same. * infrun.c: Same. * linespec.c: Same. * linux-nat.c: Same. * linux-thread-db.c: Same. * machoread.c: Same. * mdebugread.c: Same. * mep-tdep.c: Same. * mn10300-tdep.c: Same. * namespace.c: Same. * objfiles.c: Same. * opencl-lang.c: Same. * or1k-tdep.c: Same. * osabi.c: Same. * ppc-linux-nat.c: Same. * ppc-linux-tdep.c: Same. * ppc-sysv-tdep.c: Same. * printcmd.c: Same. * procfs.c: Same. * record-btrace.c: Same. * record-full.c: Same. * remote-fileio.c: Same. * remote.c: Same. * rs6000-tdep.c: Same. * s12z-tdep.c: Same. * score-tdep.c: Same. * ser-base.c: Same. * ser-go32.c: Same. * skip.c: Same. * sol-thread.c: Same. * solib-svr4.c: Same. * solib.c: Same. * source.c: Same. * sparc-nat.c: Same. * sparc-sol2-tdep.c: Same. * sparc-tdep.c: Same. * sparc64-tdep.c: Same. * stabsread.c: Same. * stack.c: Same. * symfile.c: Same. * symtab.c: Same. * target-descriptions.c: Same. * target-float.c: Same. * thread.c: Same. * utils.c: Same. * valops.c: Same. * valprint.c: Same. * value.c: Same. * varobj.c: Same. * windows-nat.c: Same. * xcoffread.c: Same. * xstormy16-tdep.c: Same. * xtensa-tdep.c: Same. Change-Id: I5175f1b107bfa4e1cdd4a3361ccb4739e53c75c4
2019-10-02Handle copy relocationsTom Tromey1-0/+44
In ELF, if a data symbol is defined in a shared library and used by the main program, it will be subject to a "copy relocation". In this scenario, the main program has a copy of the symbol in question, and a relocation that tells ld.so to copy the data from the shared library. Then the symbol in the main program is used to satisfy all references. This patch changes gdb to handle this scenario. Data symbols coming from ELF shared libraries get a special flag that indicates that the symbol's address may be subject to copy relocation. I looked briefly into handling copy relocations by looking at the actual relocations in the main program, but this seemed difficult to do with BFD. Note that no caching is done here. Perhaps this could be changed if need be; I wanted to avoid possible problems with either objfile lifetimes and changes, or conflicts with the long-term (vapor-ware) objfile splitting project. gdb/ChangeLog 2019-10-02 Tom Tromey <tromey@adacore.com> * symmisc.c (dump_msymbols): Don't use MSYMBOL_VALUE_ADDRESS. * ada-lang.c (lesseq_defined_than): Handle LOC_STATIC. * dwarf2read.c (dwarf2_per_objfile): Add can_copy parameter. (dwarf2_has_info): Likewise. (new_symbol): Set maybe_copied on symbol when appropriate. * dwarf2read.h (dwarf2_per_objfile): Add can_copy parameter. <can_copy>: New member. * elfread.c (record_minimal_symbol): Set maybe_copied on symbol when appropriate. (elf_symfile_read): Update call to dwarf2_has_info. * minsyms.c (lookup_minimal_symbol_linkage): New function. * minsyms.h (lookup_minimal_symbol_linkage): Declare. * symtab.c (get_symbol_address, get_msymbol_address): New functions. * symtab.h (get_symbol_address, get_msymbol_address): Declare. (SYMBOL_VALUE_ADDRESS, MSYMBOL_VALUE_ADDRESS): Handle maybe_copied. (struct symbol, struct minimal_symbol) <maybe_copied>: New member.
2019-10-02Search global block from basic_lookup_symbol_nonlocalAndrew Burgess1-28/+13
This changes lookup_global_symbol to look in the global block of the passed-in block. If no block was passed in, it reverts to the previous behavior. This change is needed to ensure that 'FILENAME'::NAME lookups work properly. As debugging Pedro's test case showed, this was not working properly in the case where multiple identical names could be found (the one situation where this feature is truly needed :-). This also removes some old comments from basic_lookup_symbol_nonlocal that no longer apply. Note that the new test cases for this change will appear in a later patch. They are in gdb.base/print-file-var.exp. gdb/ChangeLog 2019-10-02 Andrew Burgess <andrew.burgess@embecosm.com> * symtab.c (lookup_global_symbol): Search global block.
2019-10-01Use new %p format suffixes in gdbPedro Alves1-12/+12
This changes various spots in gdb to use the new %p format suffixes. gdb/ChangeLog 2019-10-01 Pedro Alves <palves@redhat.com> Tom Tromey <tom@tromey.com> * symtab.c (print_symbol_info): Use %ps. (print_msymbol_info): Use %ps. * symfile.c (symbol_file_add_with_addrs): Use %ps. * printcmd.c (print_variable_and_value): Use %ps. * macrocmd.c (show_pp_source_pos): Use %ps. * infrun.c (print_exited_reason): Use ui_out::message. * breakpoint.c (watchpoint_check, print_one_breakpoint_location) (describe_other_breakpoints): Use ui_out::message and new formats. (say_where): Use new formats. (bkpt_print_it, tracepoint_print_one_detail): Use ui_out::message and new formats.
2019-09-26Convert symtab.h function signatures to use bool instead of intChristian Biesinger1-37/+37
gdb/ChangeLog: 2019-09-26 Christian Biesinger <cbiesinger@google.com> * blockframe.c (find_pc_partial_function): Change return type to bool. * elfread.c (elf_gnu_ifunc_resolve_name): Likewise. * minsyms.c (in_gnu_ifunc_stub): Likewise. (stub_gnu_ifunc_resolve_name): Likewise. * symtab.c (compare_filenames_for_search): Likewise. (compare_glob_filenames_for_search): Likewise. (matching_obj_sections): Likewise. (symbol_matches_domain): Likewise. (find_line_symtab): Change out param EXACT_MATCH to bool *. (find_line_pc): Change return type to bool. (find_line_pc_range): Likewise. (producer_is_realview): Likewise. * symtab.h (symbol_matches_domain): Likewise. (find_pc_partial_function): Likewise. (find_pc_line_pc_range): Likewise. (in_gnu_ifunc_stub): Likewise. (struct gnu_ifunc_fns) <gnu_ifunc_resolve_name>: Likewise. (find_line_pc): Likewise. (find_line_pc_range): Likewise. (matching_obj_sections): Likewise. (find_line_symtab): Change out parameter to bool. (producer_is_realview): Change return type to bool. (compare_filenames_for_search): Likewise. (compare_glob_filenames_for_search): Likewise.
2019-09-20Replace solib_global_lookup with gdbarch_iterate_over_objfiles_in_search_orderChristian Biesinger1-5/+1
All implementations of either function use it for the same purpose (except Darwin, which is a no-op): to prefer a symbol in the current objfile over symbols with the same name in other objfiles. There does not seem to be a reason to have both mechanisms for that purpose. gdb/ChangeLog: 2019-09-20 Christian Biesinger <cbiesinger@google.com> * solib-darwin.c (darwin_lookup_lib_symbol): Remove. (_initialize_darwin_solib): Don't set darwin_so_ops.lookup_lib_global_symbol. * solib-svr4.c (set_solib_svr4_fetch_link_map_offsets): Call set_gdbarch_iterate_over_objfiles_in_search_order. (elf_lookup_lib_symbol): Rename to... (svr4_iterate_over_objfiles_in_search_order): this, and update to iterate semantics. (_initialize_svr4_solib): Don't set lookup_lib_global_symbol. * solib.c (solib_global_lookup): Remove. * solist.h (struct target_so_ops): Remove lookup_lib_global_symbol. (solib_global_lookup): Remove. * symtab.c (lookup_global_or_static_symbol): Remove call to solib_global_lookup.
2019-09-19bfd_section_* macrosAlan Modra1-9/+6
This large patch removes the unnecessary bfd parameter from various bfd section macros and functions. The bfd is hardly ever used and if needed for the bfd_set_section_* or bfd_rename_section functions can be found via section->owner except for the com, und, abs, and ind std_section special sections. Those sections shouldn't be modified anyway. The patch also removes various bfd_get_section_<field> macros, replacing their use with bfd_section_<field>, and adds bfd_set_section_lma. I've also fixed a minor bug in gas where compressed section renaming was done directly rather than calling bfd_rename_section. This would have broken bfd_get_section_by_name and similar functions, but that hardly mattered at such a late stage in gas processing. bfd/ * bfd-in.h (bfd_get_section_name, bfd_get_section_vma), (bfd_get_section_lma, bfd_get_section_alignment), (bfd_get_section_size, bfd_get_section_flags), (bfd_get_section_userdata): Delete. (bfd_section_name, bfd_section_size, bfd_section_vma), (bfd_section_lma, bfd_section_alignment): Lose bfd parameter. (bfd_section_flags, bfd_section_userdata): New. (bfd_is_com_section): Rename parameter. * section.c (bfd_set_section_userdata, bfd_set_section_vma), (bfd_set_section_alignment, bfd_set_section_flags, bfd_rename_section), (bfd_set_section_size): Delete bfd parameter, rename section parameter. (bfd_set_section_lma): New. * bfd-in2.h: Regenerate. * mach-o.c (bfd_mach_o_init_section_from_mach_o): Delete bfd param, update callers. * aoutx.h, * bfd.c, * coff-alpha.c, * coff-arm.c, * coff-mips.c, * coff64-rs6000.c, * coffcode.h, * coffgen.c, * cofflink.c, * compress.c, * ecoff.c, * elf-eh-frame.c, * elf-hppa.h, * elf-ifunc.c, * elf-m10200.c, * elf-m10300.c, * elf-properties.c, * elf-s390-common.c, * elf-vxworks.c, * elf.c, * elf32-arc.c, * elf32-arm.c, * elf32-avr.c, * elf32-bfin.c, * elf32-cr16.c, * elf32-cr16c.c, * elf32-cris.c, * elf32-crx.c, * elf32-csky.c, * elf32-d10v.c, * elf32-epiphany.c, * elf32-fr30.c, * elf32-frv.c, * elf32-ft32.c, * elf32-h8300.c, * elf32-hppa.c, * elf32-i386.c, * elf32-ip2k.c, * elf32-iq2000.c, * elf32-lm32.c, * elf32-m32c.c, * elf32-m32r.c, * elf32-m68hc1x.c, * elf32-m68k.c, * elf32-mcore.c, * elf32-mep.c, * elf32-metag.c, * elf32-microblaze.c, * elf32-moxie.c, * elf32-msp430.c, * elf32-mt.c, * elf32-nds32.c, * elf32-nios2.c, * elf32-or1k.c, * elf32-ppc.c, * elf32-pru.c, * elf32-rl78.c, * elf32-rx.c, * elf32-s390.c, * elf32-score.c, * elf32-score7.c, * elf32-sh.c, * elf32-spu.c, * elf32-tic6x.c, * elf32-tilepro.c, * elf32-v850.c, * elf32-vax.c, * elf32-visium.c, * elf32-xstormy16.c, * elf32-xtensa.c, * elf64-alpha.c, * elf64-bpf.c, * elf64-hppa.c, * elf64-ia64-vms.c, * elf64-mmix.c, * elf64-ppc.c, * elf64-s390.c, * elf64-sparc.c, * elf64-x86-64.c, * elflink.c, * elfnn-aarch64.c, * elfnn-ia64.c, * elfnn-riscv.c, * elfxx-aarch64.c, * elfxx-mips.c, * elfxx-sparc.c, * elfxx-tilegx.c, * elfxx-x86.c, * i386msdos.c, * linker.c, * mach-o.c, * mmo.c, * opncls.c, * pdp11.c, * pei-x86_64.c, * peicode.h, * reloc.c, * section.c, * syms.c, * vms-alpha.c, * xcofflink.c: Update throughout for bfd section macro and function changes. binutils/ * addr2line.c, * bucomm.c, * coffgrok.c, * dlltool.c, * nm.c, * objcopy.c, * objdump.c, * od-elf32_avr.c, * od-macho.c, * od-xcoff.c, * prdbg.c, * rdcoff.c, * rddbg.c, * rescoff.c, * resres.c, * size.c, * srconv.c, * strings.c, * windmc.c: Update throughout for bfd section macro and function changes. gas/ * as.c, * as.h, * dw2gencfi.c, * dwarf2dbg.c, * ecoff.c, * read.c, * stabs.c, * subsegs.c, * subsegs.h, * write.c, * config/obj-coff-seh.c, * config/obj-coff.c, * config/obj-ecoff.c, * config/obj-elf.c, * config/obj-macho.c, * config/obj-som.c, * config/tc-aarch64.c, * config/tc-alpha.c, * config/tc-arc.c, * config/tc-arm.c, * config/tc-avr.c, * config/tc-bfin.c, * config/tc-bpf.c, * config/tc-d10v.c, * config/tc-d30v.c, * config/tc-epiphany.c, * config/tc-fr30.c, * config/tc-frv.c, * config/tc-h8300.c, * config/tc-hppa.c, * config/tc-i386.c, * config/tc-ia64.c, * config/tc-ip2k.c, * config/tc-iq2000.c, * config/tc-lm32.c, * config/tc-m32c.c, * config/tc-m32r.c, * config/tc-m68hc11.c, * config/tc-mep.c, * config/tc-microblaze.c, * config/tc-mips.c, * config/tc-mmix.c, * config/tc-mn10200.c, * config/tc-mn10300.c, * config/tc-msp430.c, * config/tc-mt.c, * config/tc-nds32.c, * config/tc-or1k.c, * config/tc-ppc.c, * config/tc-pru.c, * config/tc-rl78.c, * config/tc-rx.c, * config/tc-s12z.c, * config/tc-s390.c, * config/tc-score.c, * config/tc-score7.c, * config/tc-sh.c, * config/tc-sparc.c, * config/tc-spu.c, * config/tc-tic4x.c, * config/tc-tic54x.c, * config/tc-tic6x.c, * config/tc-tilegx.c, * config/tc-tilepro.c, * config/tc-v850.c, * config/tc-visium.c, * config/tc-wasm32.c, * config/tc-xc16x.c, * config/tc-xgate.c, * config/tc-xstormy16.c, * config/tc-xtensa.c, * config/tc-z8k.c: Update throughout for bfd section macro and function changes. * write.c (compress_debug): Use bfd_rename_section. gdb/ * aarch64-linux-tdep.c, * arm-tdep.c, * auto-load.c, * coff-pe-read.c, * coffread.c, * corelow.c, * dbxread.c, * dicos-tdep.c, * dwarf2-frame.c, * dwarf2read.c, * elfread.c, * exec.c, * fbsd-tdep.c, * gcore.c, * gdb_bfd.c, * gdb_bfd.h, * hppa-tdep.c, * i386-cygwin-tdep.c, * i386-fbsd-tdep.c, * i386-linux-tdep.c, * jit.c, * linux-tdep.c, * machoread.c, * maint.c, * mdebugread.c, * minidebug.c, * mips-linux-tdep.c, * mips-sde-tdep.c, * mips-tdep.c, * mipsread.c, * nto-tdep.c, * objfiles.c, * objfiles.h, * osabi.c, * ppc-linux-tdep.c, * ppc64-tdep.c, * record-btrace.c, * record-full.c, * remote.c, * rs6000-aix-tdep.c, * rs6000-tdep.c, * s390-linux-tdep.c, * s390-tdep.c, * solib-aix.c, * solib-dsbt.c, * solib-frv.c, * solib-spu.c, * solib-svr4.c, * solib-target.c, * spu-linux-nat.c, * spu-tdep.c, * symfile-mem.c, * symfile.c, * symmisc.c, * symtab.c, * target.c, * windows-nat.c, * xcoffread.c, * cli/cli-dump.c, * compile/compile-object-load.c, * mi/mi-interp.c: Update throughout for bfd section macro and function changes. * gcore (gcore_create_callback): Use bfd_set_section_lma. * spu-tdep.c (spu_overlay_new_objfile): Likewise. gprof/ * corefile.c, * symtab.c: Update throughout for bfd section macro and function changes. ld/ * ldcref.c, * ldctor.c, * ldelf.c, * ldlang.c, * pe-dll.c, * emultempl/aarch64elf.em, * emultempl/aix.em, * emultempl/armcoff.em, * emultempl/armelf.em, * emultempl/cr16elf.em, * emultempl/cskyelf.em, * emultempl/m68hc1xelf.em, * emultempl/m68kelf.em, * emultempl/mipself.em, * emultempl/mmix-elfnmmo.em, * emultempl/mmo.em, * emultempl/msp430.em, * emultempl/nios2elf.em, * emultempl/pe.em, * emultempl/pep.em, * emultempl/ppc64elf.em, * emultempl/xtensaelf.em: Update throughout for bfd section macro and function changes. libctf/ * ctf-open-bfd.c: Update throughout for bfd section macro changes. opcodes/ * arc-ext.c: Update throughout for bfd section macro changes. sim/ * common/sim-load.c, * common/sim-utils.c, * cris/sim-if.c, * erc32/func.c, * lm32/sim-if.c, * m32c/load.c, * m32c/trace.c, * m68hc11/interp.c, * ppc/hw_htab.c, * ppc/hw_init.c, * rl78/load.c, * rl78/trace.c, * rx/gdb-if.c, * rx/load.c, * rx/trace.c: Update throughout for bfd section macro changes.
2019-09-18Change boolean options to bool instead of intChristian Biesinger1-7/+7
This is for add_setshow_boolean_cmd as well as the gdb::option interface. gdb/ChangeLog: 2019-09-17 Christian Biesinger <cbiesinger@google.com> * ada-lang.c (ada_ignore_descriptive_types_p): Change to bool. (print_signatures): Likewise. (trust_pad_over_xvs): Likewise. * arch/aarch64-insn.c (aarch64_debug): Likewise. * arch/aarch64-insn.h (aarch64_debug): Likewise. * arm-linux-nat.c (arm_apcs_32): Likewise. * arm-linux-tdep.c (arm_apcs_32): Likewise. * arm-nbsd-nat.c (arm_apcs_32): Likewise. * arm-tdep.c (arm_debug): Likewise. (arm_apcs_32): Likewise. * auto-load.c (debug_auto_load): Likewise. (auto_load_gdb_scripts): Likewise. (global_auto_load): Likewise. (auto_load_local_gdbinit): Likewise. (auto_load_local_gdbinit_loaded): Likewise. * auto-load.h (global_auto_load): Likewise. (auto_load_local_gdbinit): Likewise. (auto_load_local_gdbinit_loaded): Likewise. * breakpoint.c (disconnected_dprintf): Likewise. (breakpoint_proceeded): Likewise. (automatic_hardware_breakpoints): Likewise. (always_inserted_mode): Likewise. (target_exact_watchpoints): Likewise. (_initialize_breakpoint): Update. * breakpoint.h (target_exact_watchpoints): Change to bool. * btrace.c (maint_btrace_pt_skip_pad): Likewise. * cli/cli-cmds.c (trace_commands): Likewise. * cli/cli-cmds.h (trace_commands): Likewise. * cli/cli-decode.c (add_setshow_boolean_cmd): Change int* argument to bool*. * cli/cli-logging.c (logging_overwrite): Change to bool. (logging_redirect): Likewise. (debug_redirect): Likewise. * cli/cli-option.h (option_def) <boolean>: Change return type to bool*. (struct boolean_option_def) <get_var_address_cb_>: Change return type to bool. <boolean_option_def>: Update. (struct flag_option_def): Change default type of Context to bool from int. <flag_option_def>: Change return type of var_address_cb_ to bool*. * cli/cli-setshow.c (do_set_command): Cast to bool* instead of int*. (get_setshow_command_value_string): Likewise. * cli/cli-style.c (cli_styling): Change to bool. (source_styling): Likewise. * cli/cli-style.h (source_styling): Likewise. (cli_styling): Likewise. * cli/cli-utils.h (struct qcs_flags) <quiet, cont, silent>: Change to bool. * command.h (var_types): Update comment. (add_setshow_boolean_cmd): Change int* var argument to bool*. * compile/compile-cplus-types.c (debug_compile_cplus_types): Change to bool. (debug_compile_cplus_scopes): Likewise. * compile/compile-internal.h (compile_debug): Likewise. * compile/compile.c (compile_debug): Likewise. (struct compile_options) <raw>: Likewise. * cp-support.c (catch_demangler_crashes): Likewise. * cris-tdep.c (usr_cmd_cris_version_valid): Likewise. (usr_cmd_cris_dwarf2_cfi): Likewise. * csky-tdep.c (csky_debug): Likewise. * darwin-nat.c (enable_mach_exceptions): Likewise. * dcache.c (dcache_enabled_p): Likewise. * defs.h (info_verbose): Likewise. * demangle.c (demangle): Likewise. (asm_demangle): Likewise. * dwarf-index-cache.c (debug_index_cache): Likewise. * dwarf2-frame.c (dwarf2_frame_unwinders_enabled_p): Likewise. * dwarf2-frame.h (dwarf2_frame_unwinders_enabled_p): Likewise. * dwarf2read.c (check_physname): Likewise. (use_deprecated_index_sections): Likewise. (dwarf_always_disassemble): Likewise. * eval.c (overload_resolution): Likewise. * event-top.c (set_editing_cmd_var): Likewise. (exec_done_display_p): Likewise. * event-top.h (set_editing_cmd_var): Likewise. (exec_done_display_p): Likewise. * exec.c (write_files): Likewise. * fbsd-nat.c (debug_fbsd_lwp): Likewise (debug_fbsd_nat): Likewise. * frame.h (struct frame_print_options) <print_raw_frame_arguments>: Likewise. (struct set_backtrace_options) <backtrace_past_main>: Likewise. <backtrace_past_entry> Likewise. * gdb-demangle.h (demangle): Likewise. (asm_demangle): Likewise. * gdb_bfd.c (bfd_sharing): Likewise. * gdbcore.h (write_files): Likewise. * gdbsupport/common-debug.c (show_debug_regs): Likewise. * gdbsupport/common-debug.h (show_debug_regs): Likewise. * gdbthread.h (print_thread_events): Likewise. * gdbtypes.c (opaque_type_resolution): Likewise. (strict_type_checking): Likewise. * gnu-nat.c (gnu_debug_flag): Likewise. * guile/scm-auto-load.c (auto_load_guile_scripts): Likewise. * guile/scm-param.c (pascm_variable): Add boolval. (add_setshow_generic): Update. (pascm_param_value): Update. (pascm_set_param_value_x): Update. * hppa-tdep.c (hppa_debug): Change to bool.. * infcall.c (may_call_functions_p): Likewise. (coerce_float_to_double_p): Likewise. (unwind_on_signal_p): Likewise. (unwind_on_terminating_exception_p): Likewise. * infcmd.c (startup_with_shell): Likewise. * inferior.c (print_inferior_events): Likewise. * inferior.h (startup_with_shell): Likewise. (print_inferior_events): Likewise. * infrun.c (step_stop_if_no_debug): Likewise. (detach_fork): Likewise. (debug_displaced): Likewise. (disable_randomization): Likewise. (non_stop): Likewise. (non_stop_1): Likewise. (observer_mode): Likewise. (observer_mode_1): Likewise. (set_observer_mode): Update. (sched_multi): Change to bool. * infrun.h (debug_displaced): Likewise. (sched_multi): Likewise. (step_stop_if_no_debug): Likewise. (non_stop): Likewise. (disable_randomization): Likewise. * linux-tdep.c (use_coredump_filter): Likewise. (dump_excluded_mappings): Likewise. * linux-thread-db.c (auto_load_thread_db): Likewise. (check_thread_db_on_load): Likewise. * main.c (captured_main_1): Update. * maint-test-options.c (struct test_options_opts) <flag_opt, xx1_opt, xx2_opt, boolean_opt>: Change to bool. * maint-test-settings.c (maintenance_test_settings_boolean): Likewise. * maint.c (maintenance_profile_p): Likewise. (per_command_time): Likewise. (per_command_space): Likewise. (per_command_symtab): Likewise. * memattr.c (inaccessible_by_default): Likewise. * mi/mi-main.c (mi_async): Likewise. (mi_async_1): Likewise. * mips-tdep.c (mips64_transfers_32bit_regs_p): Likewise. * nat/fork-inferior.h (startup_with_shell): Likewise. * nat/linux-namespaces.c (debug_linux_namespaces): Likewise. * nat/linux-namespaces.h (debug_linux_namespaces): Likewise. * nios2-tdep.c (nios2_debug): Likewise. * or1k-tdep.c (or1k_debug): Likewise. * parse.c (parser_debug): Likewise. * parser-defs.h (parser_debug): Likewise. * printcmd.c (print_symbol_filename): Likewise. * proc-api.c (procfs_trace): Likewise. * python/py-auto-load.c (auto_load_python_scripts): Likewise. * python/py-param.c (union parmpy_variable): Add "bool boolval" field. (set_parameter_value): Update. (add_setshow_generic): Update. * python/py-value.c (copy_py_bool_obj): Change argument from int* to bool*. * python/python.c (gdbpy_parameter_value): Cast to bool* instead of int*. * ravenscar-thread.c (ravenscar_task_support): Change to bool. * record-btrace.c (record_btrace_target::store_registers): Update. * record-full.c (record_full_memory_query): Change to bool. (record_full_stop_at_limit): Likewise. * record-full.h (record_full_memory_query): Likewise. * remote-notif.c (notif_debug): Likewise. * remote-notif.h (notif_debug): Likewise. * remote.c (use_range_stepping): Likewise. (interrupt_on_connect): Likewise. (remote_break): Likewise. * ser-tcp.c (tcp_auto_retry): Likewise. * ser-unix.c (serial_hwflow): Likewise. * skip.c (debug_skip): Likewise. * solib-aix.c (solib_aix_debug): Likewise. * spu-tdep.c (spu_stop_on_load_p): Likewise. (spu_auto_flush_cache_p): Likewise. * stack.c (struct backtrace_cmd_options) <full, no_filters, hide>: Likewise. (struct info_print_options) <quiet>: Likewise. * symfile-debug.c (debug_symfile): Likewise. * symfile.c (auto_solib_add): Likewise. (separate_debug_file_debug): Likewise. * symfile.h (auto_solib_add): Likewise. (separate_debug_file_debug): Likewise. * symtab.c (basenames_may_differ): Likewise. (struct filename_partial_match_opts) <dirname, basename>: Likewise. (struct info_print_options) <quiet, exclude_minsyms>: Likewise. (struct info_types_options) <quiet>: Likewise. * symtab.h (demangle): Likewise. (basenames_may_differ): Likewise. * target-dcache.c (stack_cache_enabled_1): Likewise. (code_cache_enabled_1): Likewise. * target.c (trust_readonly): Likewise. (may_write_registers): Likewise. (may_write_memory): Likewise. (may_insert_breakpoints): Likewise. (may_insert_tracepoints): Likewise. (may_insert_fast_tracepoints): Likewise. (may_stop): Likewise. (auto_connect_native_target): Likewise. (target_stop_and_wait): Update. (target_async_permitted): Change to bool. (target_async_permitted_1): Likewise. (may_write_registers_1): Likewise. (may_write_memory_1): Likewise. (may_insert_breakpoints_1): Likewise. (may_insert_tracepoints_1): Likewise. (may_insert_fast_tracepoints_1): Likewise. (may_stop_1): Likewise. * target.h (target_async_permitted): Likewise. (may_write_registers): Likewise. (may_write_memory): Likewise. (may_insert_breakpoints): Likewise. (may_insert_tracepoints): Likewise. (may_insert_fast_tracepoints): Likewise. (may_stop): Likewise. * thread.c (struct info_threads_opts) <show_global_ids>: Likewise. (make_thread_apply_all_options_def_group): Change argument from int* to bool*. (thread_apply_all_command): Update. (print_thread_events): Change to bool. * top.c (confirm): Likewise. (command_editing_p): Likewise. (history_expansion_p): Likewise. (write_history_p): Likewise. (info_verbose): Likewise. * top.h (confirm): Likewise. (history_expansion_p): Likewise. * tracepoint.c (disconnected_tracing): Likewise. (circular_trace_buffer): Likewise. * typeprint.c (print_methods): Likewise. (print_typedefs): Likewise. * utils.c (debug_timestamp): Likewise. (sevenbit_strings): Likewise. (pagination_enabled): Likewise. * utils.h (sevenbit_strings): Likewise. (pagination_enabled): Likewise. * valops.c (overload_resolution): Likewise. * valprint.h (struct value_print_options) <prettyformat_arrays, prettyformat_structs, vtblprint, unionprint, addressprint, objectprint, stop_print_at_null, print_array_indexes, deref_ref, static_field_print, pascal_static_field_print, raw, summary, symbol_print, finish_print>: Likewise. * windows-nat.c (new_console): Likewise. (cygwin_exceptions): Likewise. (new_group): Likewise. (debug_exec): Likewise. (debug_events): Likewise. (debug_memory): Likewise. (debug_exceptions): Likewise. (useshell): Likewise. * windows-tdep.c (maint_display_all_tib): Likewise. * xml-support.c (debug_xml): Likewise.
2019-09-11Change the type of copy_names from int to boolChristian Biesinger1-1/+1
This parameter is really a boolean, so change the type accordingly and update the callers. This is for symbol_set_names, add_psymbol_to_bcache, and add_psymbol_to_list. minimal_symbol_reader::record_full was already passing a bool to symbol_set_names. gdb/ChangeLog: 2019-09-11 Christian Biesinger <cbiesinger@google.com> * dbxread.c (read_dbx_symtab): Update. * dwarf2read.c (load_partial_dies): Update. * mdebugread.c (parse_partial_symbols): Update. (handle_psymbol_enumerators): Update. * psympriv.h (add_psymbol_to_list): Change type of copy_names to bool. * psymtab.c (add_psymbol_to_bcache): Likewise. (add_psymbol_to_list): Likewise. * symtab.c (symbol_set_names): Likewise. * symtab.h (symbol_set_names): Likewise. * xcoffread.c (scan_xcoff_symtab): Update.
2019-09-10Simplify psym_map_matching_symbolsTom Tromey1-0/+15
This introduces a new helper function, iterate_over_symbols_terminated, and changes psym_map_matching_symbols to use it. A subsequent patch will introduce a new user of this function in the DWARF reader. gdb/ChangeLog 2019-09-10 Tom Tromey <tromey@adacore.com> * psymtab.c (map_block): Remove. (psym_map_matching_symbols): Use iterate_over_symbols_terminated. * symtab.c (iterate_over_symbols_terminated): New function. * symtab.c (iterate_over_symbols_terminated): Declare.
2019-09-10Change iterate_over_symbols to return boolTom Tromey1-9/+4
This changes iterate_over_symbols to return a bool. This allows it to be reused in another context in a subsequent patch. gdb/ChangeLog 2019-09-10 Tom Tromey <tromey@adacore.com> * ada-lang.c (ada_iterate_over_symbols): Return bool. * language.h (struct language_defn) <la_iterate_over_symbols>: Return bool. * symtab.c (iterate_over_symbols): Return bool. * symtab.h (iterate_over_symbols): Return bool.
2019-08-28gdb/fortran: Don't include module symbols when searching for typesAndrew Burgess1-1/+2
Currently the 'info types' command will return symbols that correspond to Fortran modules. This is because the symbols are created with domain MODULE_DOMAIN and address_class LOC_TYPEDEF. The address_class LOC_TYPEDEF is the same address_class used for type symbols which is why the modules show up when listing types. This commit explicitly prevents symbols in the MODULE_DOMAIN from appearing when we search for symbols in the TYPES_DOMAIN, this prevents the Fortran module symbols from appearing in the output of 'info types'. gdb/ChangeLog: * symtab.c (search_symbols): Don't include MODULE_DOMAIN symbols when searching for types. gdb/testsuite/ChangeLog: * gdb.fortran/info-types.exp: Add module. * gdb.fortran/info-types.f90: Update expected results.
2019-08-27gdb: Add new -n flag to some info commandsAndrew Burgess1-17/+103
The 'info variables', its alias 'whereis', and 'info functions' all include non-debug symbols in the output by default. The list of non-debug symbols can sometimes be quite long, resulting in the debug symbol based results being scrolled off the screen. This commit adds a '-n' flag to all of the commands listed above that excludes the non-debug symbols from the results, leaving just the debug symbol based results. gdb/ChangeLog: * cli/cli-utils.c (info_print_options_defs): Delete. (make_info_print_options_def_group): Delete. (extract_info_print_options): Delete. (info_print_command_completer): Delete. (info_print_args_help): Add extra parameter, and optionally include text about -n flag. * cli/cli-utils.h (struct info_print_options): Delete. (extract_info_print_options): Delete declaration. (info_print_command_completer): Delete declaration. (info_print_args_help): Add extra parameter, extend header comment. * python/python.c (gdbpy_rbreak): Pass additional parameter to search_symbols. * stack.c (struct info_print_options): New type. (info_print_options_defs): New file scoped variable. (make_info_print_options_def_group): New static function. (info_print_command_completer): New static function. (info_locals_command): Update to use new local functions. (info_args_command): Likewise. (_initialize_stack): Add extra parameter to calls to info_print_args_help. * symtab.c (search_symbols): Add extra parameter, use this to possibly excluse non-debug symbols. (symtab_symbol_info): Add extra parameter, which is passed on to search_symbols. (struct info_print_options): New type. (info_print_options_defs): New file scoped variable. (make_info_print_options_def_group): New static function. (info_print_command_completer): New static function. (info_variables_command): Update to use local functions, and pass extra parameter through to symtab_symbol_info. (info_functions_command): Likewise. (info_types_command): Pass additional argument through to symtab_symbol_info. (rbreak_command): Pass extra argument to search_symbols. (_initialize_symtab): Add extra arguments for calls to info_print_args_help, and update help text for 'info variables', 'whereis', and 'info functions' commands. * symtab.h (search_symbols): Add extra argument to declaration. * NEWS: Mention new flags. gdb/doc/ChangeLog: * gdb.texinfo (Symbols): Add information about the -n flag to "info variables" and "info functions". gdb/testsuite/ChangeLog: * gdb.base/info-fun.exp: Extend to test the -n flag for 'info functions'. Reindent as needed. * gdb.base/info-var-f1.c: New file. * gdb.base/info-var-f2.c: New file. * gdb.base/info-var.exp: New file. * gdb.base/info-var.h: New file.
2019-08-26Factor out the common code in lookup_{static,global}_symbolChristian Biesinger1-57/+45
The two functions are extremely similar; this factors out their code into a shared _internal function. gdb/ChangeLog: 2019-08-26 Christian Biesinger <cbiesinger@google.com> * symtab.c (lookup_static_symbol): Call the new function (and move it down to be next to lookup_global_symbol). (struct global_sym_lookup_data): Add block_enum member and rename to... (struct global_or_static_sym_lookup_data): ...this. (lookup_symbol_global_iterator_cb): Pass block_index instead of GLOBAL_BLOCK to lookup_symbol_in_objfile and rename to... (lookup_symbol_global_or_static_iterator_cb): ...this. (lookup_global_or_static_symbol): New function. (lookup_global_symbol): Call new function.
2019-08-24Fix compile warning in symtab.cChristian Biesinger1-6/+5
My compiler (g++ 8.2) can't tell that *bsc_ptr and *slot_ptr are only used in the cases when it does get initialized. Just initialize the vars earlier to avoid the warning, there does not seem to be a downside to it. ../../gdb/symtab.c: In function ‘block_symbol lookup_static_symbol(const char*, domain_enum)’: ../../gdb/symtab.c:1366:11: warning: ‘slot’ may be used uninitialized in this function [-Wmaybe-uninitialized] xfree (slot->value.not_found.name); ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../../gdb/symtab.c:2578:29: note: ‘slot’ was declared here struct symbol_cache_slot *slot; ^~~~ ../../gdb/symtab.c:1405:3: warning: ‘bsc’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (bsc == NULL) ^~ ../../gdb/symtab.c:2577:30: note: ‘bsc’ was declared here struct block_symbol_cache *bsc; ^~~ ../../gdb/symtab.c: In function ‘block_symbol lookup_global_symbol(const char*, const block*, domain_enum)’: ../../gdb/symtab.c:1366:11: warning: ‘slot’ may be used uninitialized in this function [-Wmaybe-uninitialized] xfree (slot->value.not_found.name); ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../../gdb/symtab.c:2658:29: note: ‘slot’ was declared here struct symbol_cache_slot *slot; ^~~~ ../../gdb/symtab.c:1409:14: warning: ‘bsc’ may be used uninitialized in this function [-Wmaybe-uninitialized] ++bsc->collisions; ~~~~~^~~~~~~~~~ ../../gdb/symtab.c:2657:30: note: ‘bsc’ was declared here struct block_symbol_cache *bsc; ^~~ gdb/ChangeLog: 2019-08-22 Christian Biesinger <cbiesinger@google.com> * symtab.c (symbol_cache_lookup): Always initialize *bsc_ptr and *slot_ptr.
2019-08-07Make first and last lines of 'command help documentation' consistent.Philippe Waroquiers1-2/+1
With this patch, the help docs now respect 2 invariants: * The first line of a command help is terminated by a '.' character. * The last character of a command help is not a newline character. Note that the changes for the last invariant were done by Tom, as part of : [PATCH] Remove trailing newlines from help text https://sourceware.org/ml/gdb-patches/2019-06/msg00050.html but some occurrences have been re-introduced since then. Some help docs had to be rephrased/restructured to respect the above invariants. Before this patch, print_doc_line was printing the first line of a command help documentation, but stopping at the first '.' or ',' character. This was giving inconsistent results : * The first line of command helps was sometimes '.' terminated, sometimes not. * The first line of command helps was not always designed to be readable/understandable/unambiguous when stopping at the first '.' or ',' character. This e.g. created the following inconsistencies/problems: < catch exception -- Catch Ada exceptions < catch handlers -- Catch Ada exceptions < catch syscall -- Catch system calls by their names < down-silently -- Same as the `down' command while the new help is: > catch exception -- Catch Ada exceptions, when raised. > catch handlers -- Catch Ada exceptions, when handled. > catch syscall -- Catch system calls by their names, groups and/or numbers. > down-silently -- Same as the `down' command, but does not print anything. Also, the command help doc should not be terminated by a newline character, but this was not respected by all commands. The cli-option -OPT framework re-introduced some occurences. So, the -OPT build help framework was changed to not output newlines at the end of %OPTIONS% replacement. This patch changes the help documentations to ensure the 2 invariants given above. It implied to slightly rephrase or restructure some help docs. Based on the above invariants, print_doc_line (called by 'apropos' and 'help' commands to print the first line of a command help) now outputs the full first line of a command help. This all results in a lot of small changes in the produced help docs. There are less code changes than changes in the help docs, as a lot of docs are produced by some code (e.g. the remote packet usage settings). gdb/ChangeLog 2019-08-07 Philippe Waroquiers <philippe.waroquiers@skynet.be> * cli/cli-decode.h (print_doc_line): Add for_value_prefix argument. * cli/cli-decode.c (print_doc_line): Likewise. It now prints the full first line, except when FOR_VALUE_PREFIX. In this case, the trailing '.' is not output, and the first character is uppercased. (print_help_for_command): Update call to print_doc_line. (print_doc_of_command): Likewise. * cli/cli-setshow.c (deprecated_show_value_hack): Likewise. * cli/cli-option.c (append_indented_doc): Do not append newline. (build_help_option): Append newline after first appended_indented_doc only if a second call is done. (build_help): Append 2 new lines before each option, except the first one. * compile/compile.c (_initialize_compile): Add new lines after %OPTIONS%, when not at the end of the help. Change help doc or code producing the help doc to respect the invariants. * maint-test-options.c (_initialize_maint_test_options): Likewise. Also removed the new line after 'Options:', as all other commands do not put an empty line between 'Options:' and the first option. * printcmd.c (_initialize_printcmd): Likewise. * stack.c (_initialize_stack): Likewise. * interps.c (interpreter_exec_cmd): Fix "Usage:" line that was incorrectly telling COMMAND is optional. * ada-lang.c (_initialize_ada_language): Change help doc or code producing the help doc to respect the invariants. * ada-tasks.c (_initialize_ada_tasks): Likewise. * breakpoint.c (_initialize_breakpoint): Likewise. * cli/cli-cmds.c (_initialize_cli_cmds): Likewise. * cli/cli-logging.c (_initialize_cli_logging): Likewise. * cli/cli-setshow.c (_initialize_cli_setshow): Likewise. * cli/cli-style.c (cli_style_option::add_setshow_commands, _initialize_cli_style): Likewise. * corelow.c (core_target_info): Likewise. * dwarf-index-cache.c (_initialize_index_cache): Likewise. * dwarf2read.c (_initialize_dwarf2_read): Likewise. * filesystem.c (_initialize_filesystem): Likewise. * frame.c (_initialize_frame): Likewise. * gnu-nat.c (add_task_commands): Likewise. * infcall.c (_initialize_infcall): Likewise. * infcmd.c (_initialize_infcmd): Likewise. * interps.c (_initialize_interpreter): Likewise. * language.c (_initialize_language): Likewise. * linux-fork.c (_initialize_linux_fork): Likewise. * maint-test-settings.c (_initialize_maint_test_settings): Likewise. * maint.c (_initialize_maint_cmds): Likewise. * memattr.c (_initialize_mem): Likewise. * printcmd.c (_initialize_printcmd): Likewise. * python/lib/gdb/function/strfns.py (_MemEq, _StrLen, _StrEq, _RegEx): Likewise. * ravenscar-thread.c (_initialize_ravenscar): Likewise. * record-btrace.c (_initialize_record_btrace): Likewise. * record-full.c (_initialize_record_full): Likewise. * record.c (_initialize_record): Likewise. * regcache-dump.c (_initialize_regcache_dump): Likewise. * regcache.c (_initialize_regcache): Likewise. * remote.c (add_packet_config_cmd, init_remote_threadtests, _initialize_remote): Likewise. * ser-tcp.c (_initialize_ser_tcp): Likewise. * serial.c (_initialize_serial): Likewise. * skip.c (_initialize_step_skip): Likewise. * source.c (_initialize_source): Likewise. * stack.c (_initialize_stack): Likewise. * symfile.c (_initialize_symfile): Likewise. * symtab.c (_initialize_symtab): Likewise. * target-descriptions.c (_initialize_target_descriptions): Likewise. * top.c (init_main): Likewise. * tracefile-tfile.c (tfile_target_info): Likewise. * tracepoint.c (_initialize_tracepoint): Likewise. * tui/tui-win.c (_initialize_tui_win): Likewise. * utils.c (add_internal_problem_command): Likewise. * valprint.c (value_print_option_defs): Likewise. gdb/testsuite/ChangeLog 2019-08-07 Philippe Waroquiers <philippe.waroquiers@skynet.be> * gdb.base/style.exp: Update tests for help doc new invariants. * gdb.base/help.exp: Likewise.
2019-08-06Replace int with enum block_enum where appropriate.Christian Biesinger1-6/+9
For better readability and type safety. gdb/ChangeLog: 2019-08-06 Christian Biesinger <cbiesinger@google.com> * symtab.c (symbol_cache_lookup): Change int to enum block_enum. (error_in_psymtab_expansion): Likewise. (lookup_symbol_via_quick_fns): Likewise. (basic_lookup_transparent_type_quick): Likewise. (basic_lookup_transparent_type_1): Likewise.
2019-08-03New "info sources" args [-dirname | -basename] [--] [REGEXP]Philippe Waroquiers1-8/+151
gdb/ChangeLog 2019-08-03 Philippe Waroquiers <philippe.waroquiers@skynet.be> * symtab.c (filename_partial_match_opts): New struct type. (struct output_source_filename_data): New members regexp, c_regexp, partial_match. (output_source_filename): Use new members to decide to print file. (info_sources_option_defs): New variable. (make_info_sources_options_def_group, print_info_sources_header, info_sources_command_completer): New functions. (info_sources_command): Read new optional arguments. (_initialize_symtab): Update info sources help.