From 64028ad7deae733620b7857b19fd564db344e2c0 Mon Sep 17 00:00:00 2001 From: Ulrich Weigand Date: Thu, 1 Oct 2009 13:09:56 +0000 Subject: bfd/ * elf32-spu.c (spu_elf_auto_overlay): Insert icache linker script after .toe instead of before .text section. Set the LMA of all overlay sections to their icache IA address. (spu_elf_find_overlays): Determine icache set id without reference to the LMA. ld/testsuite/ * ld-spu/icache1.d: Update to new section layout. --- bfd/ChangeLog | 8 ++++++++ bfd/elf32-spu.c | 36 ++++++++++++++++++++---------------- 2 files changed, 28 insertions(+), 16 deletions(-) (limited to 'bfd') diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 140823f..393a8e2 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,11 @@ +2009-10-01 Ulrich Weigand + + * elf32-spu.c (spu_elf_auto_overlay): Insert icache linker script + after .toe instead of before .text section. Set the LMA of all + overlay sections to their icache IA address. + (spu_elf_find_overlays): Determine icache set id without reference + to the LMA. + 2009-09-30 Tristan Gingold * configure.com: Use hosts/alphavms.h on both alpha and ia64 VMS. diff --git a/bfd/elf32-spu.c b/bfd/elf32-spu.c index 13d3a53..890f260 100644 --- a/bfd/elf32-spu.c +++ b/bfd/elf32-spu.c @@ -678,9 +678,10 @@ spu_elf_find_overlays (struct bfd_link_info *info) ovl_end = alloc_sec[0]->vma + alloc_sec[0]->size; if (htab->params->ovly_flavour == ovly_soft_icache) { + unsigned int prev_buf = 0, set_id = 0; + /* Look for an overlapping vma to find the first overlay section. */ bfd_vma vma_start = 0; - bfd_vma lma_start = 0; for (i = 1; i < n; i++) { @@ -689,10 +690,6 @@ spu_elf_find_overlays (struct bfd_link_info *info) { asection *s0 = alloc_sec[i - 1]; vma_start = s0->vma; - if (strncmp (s0->name, ".ovl.init", 9) != 0) - lma_start = s0->lma; - else - lma_start = s->lma; ovl_end = (s0->vma + ((bfd_vma) 1 << (htab->num_lines_log2 + htab->line_size_log2))); @@ -717,8 +714,10 @@ spu_elf_find_overlays (struct bfd_link_info *info) if (strncmp (s->name, ".ovl.init", 9) != 0) { num_buf = ((s->vma - vma_start) >> htab->line_size_log2) + 1; - if (((s->vma - vma_start) & (htab->params->line_size - 1)) - || ((s->lma - lma_start) & (htab->params->line_size - 1))) + set_id = (num_buf == prev_buf)? set_id + 1 : 0; + prev_buf = num_buf; + + if ((s->vma - vma_start) & (htab->params->line_size - 1)) { info->callbacks->einfo (_("%X%P: overlay section %A " "does not start on a cache line.\n"), @@ -737,7 +736,7 @@ spu_elf_find_overlays (struct bfd_link_info *info) alloc_sec[ovl_index++] = s; spu_elf_section_data (s)->u.o.ovl_index - = ((s->lma - lma_start) >> htab->line_size_log2) + 1; + = (set_id << htab->num_lines_log2) + num_buf; spu_elf_section_data (s)->u.o.ovl_buf = num_buf; } } @@ -4531,13 +4530,12 @@ spu_elf_auto_overlay (struct bfd_link_info *info) script = htab->params->spu_elf_open_overlay_script (); - if (fprintf (script, "SECTIONS\n{\n") <= 0) - goto file_err; - if (htab->params->ovly_flavour == ovly_soft_icache) { + if (fprintf (script, "SECTIONS\n{\n") <= 0) + goto file_err; + if (fprintf (script, - " .data.icache ALIGN (16) : { *(.ovtab) *(.data.icache) }\n" " . = ALIGN (%u);\n" " .ovl.init : { *(.ovl.init) }\n" " . = ABSOLUTE (ADDR (.ovl.init));\n", @@ -4552,10 +4550,10 @@ spu_elf_auto_overlay (struct bfd_link_info *info) unsigned int vma, lma; vma = (indx & (htab->params->num_lines - 1)) << htab->line_size_log2; - lma = indx << htab->line_size_log2; + lma = vma + (((indx >> htab->num_lines_log2) + 1) << 18); if (fprintf (script, " .ovly%u ABSOLUTE (ADDR (.ovl.init)) + %u " - ": AT (ALIGN (LOADADDR (.ovl.init) + SIZEOF (.ovl.init), 16) + %u) {\n", + ": AT (LOADADDR (.ovl.init) + %u) {\n", ovlynum, vma, lma) <= 0) goto file_err; @@ -4573,9 +4571,15 @@ spu_elf_auto_overlay (struct bfd_link_info *info) if (fprintf (script, " . = ABSOLUTE (ADDR (.ovl.init)) + %u;\n", 1 << (htab->num_lines_log2 + htab->line_size_log2)) <= 0) goto file_err; + + if (fprintf (script, "}\nINSERT AFTER .toe;\n") <= 0) + goto file_err; } else { + if (fprintf (script, "SECTIONS\n{\n") <= 0) + goto file_err; + if (fprintf (script, " . = ALIGN (16);\n" " .ovl.init : { *(.ovl.init) }\n" @@ -4627,13 +4631,13 @@ spu_elf_auto_overlay (struct bfd_link_info *info) goto file_err; } + if (fprintf (script, "}\nINSERT BEFORE .text;\n") <= 0) + goto file_err; } free (ovly_map); free (ovly_sections); - if (fprintf (script, "}\nINSERT BEFORE .text;\n") <= 0) - goto file_err; if (fclose (script) != 0) goto file_err; -- cgit v1.1