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author | Alan Modra <amodra@gmail.com> | 2008-04-08 03:26:54 +0000 |
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committer | Alan Modra <amodra@gmail.com> | 2008-04-08 03:26:54 +0000 |
commit | 9dcc47943c9cade9fa2d4ce118a9f25ac4dd5f98 (patch) | |
tree | 70e174f06438682669d3f88a7575c98a6a1b46ac /ld/emultempl | |
parent | 04f72d577278b28269be17bade91571d7a165176 (diff) | |
download | gdb-9dcc47943c9cade9fa2d4ce118a9f25ac4dd5f98.zip gdb-9dcc47943c9cade9fa2d4ce118a9f25ac4dd5f98.tar.gz gdb-9dcc47943c9cade9fa2d4ce118a9f25ac4dd5f98.tar.bz2 |
bfd/
* elf32-spu.c: Include libiberty.h.
(struct spu_link_hash_table): Add local_stire, overlay_fixed, reserved,
non_ovly_stub, spu_elf_load_ovl_mgr, spu_elf_open_overlay_script,
spu_elf_relink, auto_overlay fields.
(AUTO_OVERLAY, AUTO_RELINK, OVERLAY_RODATA): Define.
(needs_ovl_stub): Flip test so that call to non-function warning
is emitted during relocate_section rather than earlier.
(spu_elf_check_vma): Stash --auto-overlay parameters, and clear
auto_overlay if no section exceeds local store.
(struct call_info): Add count, max_depth, is_pasted fields.
(struct function_info): Add rodata, last_caller, call_count,
depth, new visit flags.
(insert_callee): Increment call count.
(copy_callee): New function.
(mark_functions_via_relocs): Investigate all reloc types to count
possible function pointer stubs for --auto-overlay. Track
last_caller and increment function call_count.
(pasted_function): Insert a "call" into call info for pasted section.
(remove_cycles): Track max depth of calls. Don't emit call graph
pruning warning for --auto-overlay.
(build_call_tree): Don't transfer_calls for --auto-overlay.
Adjust remove_cycles call.
(sort_calls, sort_lib, sort_bfds): New functions.
(struct _mos_param, struct _uos_param, struct _cl_param): New.
(mark_overlay_section, unmark_overlay_section): New functions.
(collect_lib_sectios, auto_ovl_lib_functions): New functions.
(collect_overlays, find_pasted_call): New functions.
(sum_stack): Deal with is_pasted "calls". Exit before printing
when --auto-overlay.
(spu_elf_auto_overlay): New function.
(spu_elf_final_link): Call spu_elf_auto_overlay.
* elf32-spu.h (spu_elf_check_vma): Update prototype.
ld/
* emultempl/spuelf.em (auto_overlay, auto_overlay_file,
auto_overlay_fixed, auto_overlay_reserved, my_argc, my_argv): New vars.
(spu_before_allocation): Warn on --auto-overlay and existing overlays.
(struct tflist, clean_tmp): Move.
(new_tmp_file): New function, extracted from..
(embedded_spu_file): ..here.
(spu_elf_open_overlay_script, spu_elf_relink): New function.
(gld${EMULATION_NAME}_finish): Pass a bunch of --auto-overlay params.
Warn on --auto-overlay and zero local store.
(gld${EMULATION_NAME}_choose_target): New function to stash argv.
(OPTION_SPU_AUTO_OVERLAY, OPTION_SPU_AUTO_RELINK,
OPTION_SPU_OVERLAY_RODATA, OPTION_SPU_FIXED_SPACE,
OPTION_SPU_RESERVED_SPACE, OPTION_SPU_NO_AUTO_OVERLAY): Define.
(PARSE_AND_LIST_LONGOPTS): Add entries for new options.
(PARSE_AND_LIST_OPTIONS): Likewise.
(PARSE_AND_LIST_ARGS_CASES): Likewise.
(LDEMUL_CHOOSE_TARGET): Define.
Diffstat (limited to 'ld/emultempl')
-rw-r--r-- | ld/emultempl/spuelf.em | 217 |
1 files changed, 184 insertions, 33 deletions
diff --git a/ld/emultempl/spuelf.em b/ld/emultempl/spuelf.em index 3a8cf28..ebaecdb 100644 --- a/ld/emultempl/spuelf.em +++ b/ld/emultempl/spuelf.em @@ -45,6 +45,14 @@ static int emit_stack_syms = 0; static bfd_vma local_store_lo = 0; static bfd_vma local_store_hi = 0x3ffff; +/* Control --auto-overlay feature. */ +static int auto_overlay = 0; +static char *auto_overlay_file = 0; +static unsigned int auto_overlay_fixed = 0; +static unsigned int auto_overlay_reserved = 0; +int my_argc; +char **my_argv; + static const char ovl_mgr[] = { EOF @@ -202,6 +210,12 @@ spu_before_allocation (void) { int ret; + if (auto_overlay != 0) + { + einfo ("%P: --auto-overlay ignored with user overlay script\n"); + auto_overlay = 0; + } + ret = spu_elf_size_stubs (&link_info, spu_place_special_section, non_overlay_stubs); @@ -218,6 +232,83 @@ spu_before_allocation (void) gld${EMULATION_NAME}_before_allocation (); } +struct tflist { + struct tflist *next; + char name[9]; +}; + +static struct tflist *tmp_file_list; + +static void clean_tmp (void) +{ + for (; tmp_file_list != NULL; tmp_file_list = tmp_file_list->next) + unlink (tmp_file_list->name); +} + +static int +new_tmp_file (char **fname) +{ + struct tflist *tf; + int fd; + + if (tmp_file_list == NULL) + atexit (clean_tmp); + tf = xmalloc (sizeof (*tf)); + tf->next = tmp_file_list; + tmp_file_list = tf; + memcpy (tf->name, "ldXXXXXX", sizeof (tf->name)); + *fname = tf->name; +#ifdef HAVE_MKSTEMP + fd = mkstemp (*fname); +#else + *fname = mktemp (*fname); + if (*fname == NULL) + return -1; + fd = open (fname, O_RDWR | O_CREAT | O_EXCL, 0600); +#endif + return fd; +} + +static FILE * +spu_elf_open_overlay_script (void) +{ + FILE *script = NULL; + + if (auto_overlay_file == NULL) + { + int fd = new_tmp_file (&auto_overlay_file); + if (fd == -1) + goto file_err; + script = fdopen (fd, "w"); + } + else + script = fopen (auto_overlay_file, "w"); + + if (script == NULL) + { + file_err: + einfo ("%F%P: can not open script: %E\n"); + } + return script; +} + +static void +spu_elf_relink (void) +{ + char **argv = xmalloc ((my_argc + 5) * sizeof (*argv)); + + memcpy (argv, my_argv, my_argc * sizeof (*argv)); + argv[my_argc++] = "--no-auto-overlay"; + if (tmp_file_list->name == auto_overlay_file) + argv[my_argc++] = auto_overlay_file; + argv[my_argc++] = "-T"; + argv[my_argc++] = auto_overlay_file; + argv[my_argc] = 0; + execvp (argv[0], (char *const *) argv); + perror (argv[0]); + _exit (127); +} + /* Final emulation specific call. */ static void @@ -235,10 +326,17 @@ gld${EMULATION_NAME}_finish (void) { asection *s; - s = spu_elf_check_vma (&link_info, local_store_lo, local_store_hi); - if (s != NULL) + s = spu_elf_check_vma (&link_info, auto_overlay, + local_store_lo, local_store_hi, + auto_overlay_fixed, auto_overlay_reserved, + spu_elf_load_ovl_mgr, + spu_elf_open_overlay_script, + spu_elf_relink); + if (s != NULL && !auto_overlay) einfo ("%X%P: %A exceeds local store range\n", s); } + else if (auto_overlay) + einfo ("%P: --auto-overlay ignored with zero local store range\n"); if (!spu_elf_build_stubs (&link_info, emit_stub_syms || link_info.emitrelocations)) @@ -248,6 +346,14 @@ gld${EMULATION_NAME}_finish (void) finish_default (); } +static char * +gld${EMULATION_NAME}_choose_target (int argc, char *argv[]) +{ + my_argc = argc; + my_argv = argv; + return ldemul_default_target (argc, argv); +} + EOF if grep -q 'ld_elf.*ppc.*_emulation' ldemul-list.h; then @@ -256,19 +362,6 @@ if grep -q 'ld_elf.*ppc.*_emulation' ldemul-list.h; then #include <fcntl.h> #include <sys/wait.h> -struct tflist { - struct tflist *next; - char name[9]; -}; - -static struct tflist *tmp_file_list; - -static void clean_tmp (void) -{ - for (; tmp_file_list != NULL; tmp_file_list = tmp_file_list->next) - unlink (tmp_file_list->name); -} - static const char * base_name (const char *path) { @@ -302,7 +395,6 @@ embedded_spu_file (lang_input_statement_type *entry, const char *flags) const char *cmd[6]; const char *sym; char *handle, *p; - struct tflist *tf; char *oname; int fd; pid_t pid; @@ -326,22 +418,7 @@ embedded_spu_file (lang_input_statement_type *entry, const char *flags) if (!(ISALNUM (*p) || *p == '$' || *p == '.')) *p = '_'; - if (tmp_file_list == NULL) - atexit (clean_tmp); - tf = xmalloc (sizeof (*tf)); - tf->next = tmp_file_list; - tmp_file_list = tf; - oname = tf->name; - memcpy (tf->name, "ldXXXXXX", sizeof (tf->name)); - -#ifdef HAVE_MKSTEMP - fd = mkstemp (oname); -#else - oname = mktemp (oname); - if (oname == NULL) - return FALSE; - fd = open (oname, O_RDWR | O_CREAT | O_EXCL, 0600); -#endif + fd = new_tmp_file (&oname); if (fd == -1) return FALSE; close (fd); @@ -440,6 +517,12 @@ PARSE_AND_LIST_PROLOGUE=' #define OPTION_SPU_LOCAL_STORE (OPTION_SPU_NON_OVERLAY_STUBS + 1) #define OPTION_SPU_STACK_ANALYSIS (OPTION_SPU_LOCAL_STORE + 1) #define OPTION_SPU_STACK_SYMS (OPTION_SPU_STACK_ANALYSIS + 1) +#define OPTION_SPU_AUTO_OVERLAY (OPTION_SPU_STACK_SYMS + 1) +#define OPTION_SPU_AUTO_RELINK (OPTION_SPU_AUTO_OVERLAY + 1) +#define OPTION_SPU_OVERLAY_RODATA (OPTION_SPU_AUTO_RELINK + 1) +#define OPTION_SPU_FIXED_SPACE (OPTION_SPU_OVERLAY_RODATA + 1) +#define OPTION_SPU_RESERVED_SPACE (OPTION_SPU_FIXED_SPACE + 1) +#define OPTION_SPU_NO_AUTO_OVERLAY (OPTION_SPU_RESERVED_SPACE + 1) ' PARSE_AND_LIST_LONGOPTS=' @@ -450,6 +533,12 @@ PARSE_AND_LIST_LONGOPTS=' { "local-store", required_argument, NULL, OPTION_SPU_LOCAL_STORE }, { "stack-analysis", no_argument, NULL, OPTION_SPU_STACK_ANALYSIS }, { "emit-stack-syms", no_argument, NULL, OPTION_SPU_STACK_SYMS }, + { "auto-overlay", optional_argument, NULL, OPTION_SPU_AUTO_OVERLAY }, + { "auto-relink", no_argument, NULL, OPTION_SPU_AUTO_RELINK }, + { "overlay-rodata", no_argument, NULL, OPTION_SPU_OVERLAY_RODATA }, + { "fixed-space", required_argument, NULL, OPTION_SPU_FIXED_SPACE }, + { "reserved-space", required_argument, NULL, OPTION_SPU_RESERVED_SPACE }, + { "no-auto-overlay", optional_argument, NULL, OPTION_SPU_NO_AUTO_OVERLAY }, ' PARSE_AND_LIST_OPTIONS=' @@ -460,7 +549,14 @@ PARSE_AND_LIST_OPTIONS=' --extra-overlay-stubs Add stubs on all calls out of overlay regions.\n\ --local-store=lo:hi Valid address range.\n\ --stack-analysis Estimate maximum stack requirement.\n\ - --emit-stack-syms Add sym giving stack needed for each func.\n" + --emit-stack-syms Add sym giving stack needed for each func.\n\ + --auto-overlay [=filename] Create an overlay script in filename if\n\ + executable does not fit in local store.\n\ + --auto-relink Rerun linker using auto-overlay script.\n\ + --overlay-rodata Place read-only data with associated function\n\ + code in overlays.\n\ + --fixed-space=bytes Local store for non-overlay code and data.\n\ + --reserved-space=bytes Local store for stack and heap.\n" )); ' @@ -502,8 +598,63 @@ PARSE_AND_LIST_ARGS_CASES=' case OPTION_SPU_STACK_SYMS: emit_stack_syms = 1; break; + + case OPTION_SPU_AUTO_OVERLAY: + auto_overlay |= 1; + if (optarg != NULL) + { + auto_overlay_file = optarg; + break; + } + /* Fall thru */ + + case OPTION_SPU_AUTO_RELINK: + auto_overlay |= 2; + break; + + case OPTION_SPU_OVERLAY_RODATA: + auto_overlay |= 4; + break; + + case OPTION_SPU_FIXED_SPACE: + { + char *end; + auto_overlay_fixed = strtoul (optarg, &end, 0); + if (*end != 0) + einfo (_("%P%F: invalid --fixed-space value `%s'\''\n"), optarg); + } + break; + + case OPTION_SPU_RESERVED_SPACE: + { + char *end; + auto_overlay_reserved = strtoul (optarg, &end, 0); + if (*end != 0) + einfo (_("%P%F: invalid --reserved-space value `%s'\''\n"), optarg); + } + break; + + case OPTION_SPU_NO_AUTO_OVERLAY: + auto_overlay = 0; + if (optarg != NULL) + { + struct tflist *tf; + size_t len; + + if (tmp_file_list == NULL) + atexit (clean_tmp); + + len = strlen (optarg) + 1; + tf = xmalloc (sizeof (*tf) - sizeof (tf->name) + len); + memcpy (tf->name, optarg, len); + tf->next = tmp_file_list; + tmp_file_list = tf; + break; + } + break; ' LDEMUL_AFTER_OPEN=spu_after_open LDEMUL_BEFORE_ALLOCATION=spu_before_allocation LDEMUL_FINISH=gld${EMULATION_NAME}_finish +LDEMUL_CHOOSE_TARGET=gld${EMULATION_NAME}_choose_target |