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* 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.
This commit is contained in:
Alan Modra 2008-04-08 03:26:54 +00:00
parent 04f72d5772
commit 9dcc47943c
5 changed files with 1411 additions and 81 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
bfd/ChangeLog
View File

@ -1,3 +1,38 @@
2008-04-08 Alan Modra <amodra@bigpond.net.au>
* 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.
2008-04-07 Alan Modra <amodra@bigpond.net.au>
* elf32-spu.c (allocate_spuear_stubs): Ensure _SPUEAR_ symbol

1215
bfd/elf32-spu.c
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File diff suppressed because it is too large Load Diff

5
bfd/elf32-spu.h
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@ -60,4 +60,7 @@ extern int spu_elf_size_stubs (struct bfd_link_info *,
void (*) (asection *, asection *, const char *),
int);
extern bfd_boolean spu_elf_build_stubs (struct bfd_link_info *, int);
extern asection *spu_elf_check_vma (struct bfd_link_info *, bfd_vma, bfd_vma);
extern asection *spu_elf_check_vma (struct bfd_link_info *, int,
unsigned int, unsigned int, unsigned int,
unsigned int, void (*) (void),
FILE *(*) (void), void (*) (void));

20
ld/ChangeLog
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@ -1,3 +1,23 @@
2008-04-08 Alan Modra <amodra@bigpond.net.au>
* 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.
2008-04-03 Kai Tietz <kai.tietz@onevision.com>
PR ld/6026

217
ld/emultempl/spuelf.em
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@ -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