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-rw-r--r--meta-microblaze/recipes-devtools/gdb/gdb/0004-LOCAL-Fix-relaxation-of-assembler-resolved-reference.patch261
1 files changed, 0 insertions, 261 deletions
diff --git a/meta-microblaze/recipes-devtools/gdb/gdb/0004-LOCAL-Fix-relaxation-of-assembler-resolved-reference.patch b/meta-microblaze/recipes-devtools/gdb/gdb/0004-LOCAL-Fix-relaxation-of-assembler-resolved-reference.patch
deleted file mode 100644
index d5862d87..00000000
--- a/meta-microblaze/recipes-devtools/gdb/gdb/0004-LOCAL-Fix-relaxation-of-assembler-resolved-reference.patch
+++ /dev/null
@@ -1,261 +0,0 @@
-From e98a2f325e1a90dfd6911d124889f0760d663b5c Mon Sep 17 00:00:00 2001
-From: Mahesh Bodapati <mbodapat@xilinx.com>
-Date: Tue, 8 Nov 2016 11:54:08 +0530
-Subject: [PATCH 04/52] [LOCAL]: Fix relaxation of assembler resolved
- references,Fixup debug_loc sections after linker relaxation Adds a new
- reloctype R_MICROBLAZE_32_NONE, used for passing reloc info from the
- assembler to the linker when the linker manages to fully resolve a local
- symbol reference.
-
-This is a workaround for design flaws in the assembler to
-linker interface with regards to linker relaxation.
-
-Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
-Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
-
-Conflicts:
- bfd/elf32-microblaze.c
- binutils/readelf.c
- include/elf/microblaze.h
----
- bfd/bfd-in2.h | 5 ++
- bfd/elf32-microblaze.c | 126 ++++++++++++++++++++++++++++---------
- bfd/libbfd.h | 1 +
- bfd/reloc.c | 6 ++
- binutils/readelf.c | 4 ++
- gas/config/tc-microblaze.c | 4 ++
- include/elf/microblaze.h | 2 +
- 7 files changed, 119 insertions(+), 29 deletions(-)
-
-Index: gdb-9.2/bfd/bfd-in2.h
-===================================================================
---- gdb-9.2.orig/bfd/bfd-in2.h
-+++ gdb-9.2/bfd/bfd-in2.h
-@@ -5363,6 +5363,11 @@ value relative to the read-write small d
- expressions of the form "Symbol Op Symbol" */
- BFD_RELOC_MICROBLAZE_32_SYM_OP_SYM,
-
-+/* This is a 32 bit reloc that stores the 32 bit pc relative
-+value in two words (with an imm instruction).No relocation is
-+done here - only used for relaxing */
-+ BFD_RELOC_MICROBLAZE_32_NONE,
-+
- /* This is a 64 bit reloc that stores the 32 bit pc relative
- value in two words (with an imm instruction). No relocation is
- done here - only used for relaxing */
-Index: gdb-9.2/bfd/elf32-microblaze.c
-===================================================================
---- gdb-9.2.orig/bfd/elf32-microblaze.c
-+++ gdb-9.2/bfd/elf32-microblaze.c
-@@ -177,6 +177,20 @@ static reloc_howto_type microblaze_elf_h
- FALSE), /* PC relative offset? */
-
- /* This reloc does nothing. Used for relaxation. */
-+ HOWTO (R_MICROBLAZE_32_NONE, /* Type. */
-+ 0, /* Rightshift. */
-+ 2, /* Size (0 = byte, 1 = short, 2 = long). */
-+ 32, /* Bitsize. */
-+ TRUE, /* PC_relative. */
-+ 0, /* Bitpos. */
-+ complain_overflow_bitfield, /* Complain on overflow. */
-+ NULL, /* Special Function. */
-+ "R_MICROBLAZE_32_NONE",/* Name. */
-+ FALSE, /* Partial Inplace. */
-+ 0, /* Source Mask. */
-+ 0, /* Dest Mask. */
-+ FALSE), /* PC relative offset? */
-+
- HOWTO (R_MICROBLAZE_64_NONE, /* Type. */
- 0, /* Rightshift. */
- 3, /* Size (0 = byte, 1 = short, 2 = long). */
-@@ -562,7 +576,10 @@ microblaze_elf_reloc_type_lookup (bfd *
- case BFD_RELOC_NONE:
- microblaze_reloc = R_MICROBLAZE_NONE;
- break;
-- case BFD_RELOC_MICROBLAZE_64_NONE:
-+ case BFD_RELOC_MICROBLAZE_32_NONE:
-+ microblaze_reloc = R_MICROBLAZE_32_NONE;
-+ break;
-+ case BFD_RELOC_MICROBLAZE_64_NONE:
- microblaze_reloc = R_MICROBLAZE_64_NONE;
- break;
- case BFD_RELOC_32:
-@@ -1918,18 +1935,26 @@ microblaze_elf_relax_section (bfd *abfd,
- }
- break;
- case R_MICROBLAZE_NONE:
-+ case R_MICROBLAZE_32_NONE:
- {
- /* This was a PC-relative instruction that was
- completely resolved. */
- int sfix, efix;
-+ unsigned int val;
- bfd_vma target_address;
- target_address = irel->r_addend + irel->r_offset;
- sfix = calc_fixup (irel->r_offset, 0, sec);
- efix = calc_fixup (target_address, 0, sec);
-- irel->r_addend -= (efix - sfix);
-- /* Should use HOWTO. */
-- microblaze_bfd_write_imm_value_32 (abfd, contents + irel->r_offset,
-- irel->r_addend);
-+
-+ /* Validate the in-band val. */
-+ val = bfd_get_32 (abfd, contents + irel->r_offset);
-+ if (val != irel->r_addend && ELF32_R_TYPE (irel->r_info) == R_MICROBLAZE_32_NONE) {
-+ fprintf(stderr, "%d: CORRUPT relax reloc %x %lx\n", __LINE__, val, irel->r_addend);
-+ }
-+ irel->r_addend -= (efix - sfix);
-+ /* Should use HOWTO. */
-+ microblaze_bfd_write_imm_value_32 (abfd, contents + irel->r_offset,
-+ irel->r_addend);
- }
- break;
- case R_MICROBLAZE_64_NONE:
-@@ -1973,30 +1998,73 @@ microblaze_elf_relax_section (bfd *abfd,
- irelscanend = irelocs + o->reloc_count;
- for (irelscan = irelocs; irelscan < irelscanend; irelscan++)
- {
-- if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32)
-- {
-- isym = isymbuf + ELF32_R_SYM (irelscan->r_info);
-+ if (1 && ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32_NONE)
-+ {
-+ unsigned int val;
-+
-+ isym = isymbuf + ELF32_R_SYM (irelscan->r_info);
-+
-+ /* hax: We only do the following fixup for debug location lists. */
-+ if (strcmp(".debug_loc", o->name))
-+ continue;
-+
-+ /* This was a PC-relative instruction that was completely resolved. */
-+ if (ocontents == NULL)
-+ {
-+ if (elf_section_data (o)->this_hdr.contents != NULL)
-+ ocontents = elf_section_data (o)->this_hdr.contents;
-+ else
-+ {
-+ /* We always cache the section contents.
-+ Perhaps, if info->keep_memory is FALSE, we
-+ should free them, if we are permitted to. */
-+
-+ if (o->rawsize == 0)
-+ o->rawsize = o->size;
-+ ocontents = (bfd_byte *) bfd_malloc (o->rawsize);
-+ if (ocontents == NULL)
-+ goto error_return;
-+ if (!bfd_get_section_contents (abfd, o, ocontents,
-+ (file_ptr) 0,
-+ o->rawsize))
-+ goto error_return;
-+ elf_section_data (o)->this_hdr.contents = ocontents;
-+ }
-+ }
-
-- /* Look at the reloc only if the value has been resolved. */
-- if (isym->st_shndx == shndx
-- && (ELF32_ST_TYPE (isym->st_info) == STT_SECTION))
-- {
-- if (ocontents == NULL)
-- {
-- if (elf_section_data (o)->this_hdr.contents != NULL)
-- ocontents = elf_section_data (o)->this_hdr.contents;
-- else
-- {
-- /* We always cache the section contents.
-- Perhaps, if info->keep_memory is FALSE, we
-- should free them, if we are permitted to. */
-- if (o->rawsize == 0)
-- o->rawsize = o->size;
-- ocontents = (bfd_byte *) bfd_malloc (o->rawsize);
-- if (ocontents == NULL)
-- goto error_return;
-- if (!bfd_get_section_contents (abfd, o, ocontents,
-- (file_ptr) 0,
-+ val = bfd_get_32 (abfd, ocontents + irelscan->r_offset);
-+ if (val != irelscan->r_addend) {
-+ fprintf(stderr, "%d: CORRUPT relax reloc! %x %lx\n", __LINE__, val, irelscan->r_addend);
-+ }
-+
-+ irelscan->r_addend -= calc_fixup (irelscan->r_addend, 0, sec);
-+ microblaze_bfd_write_imm_value_32 (abfd, ocontents + irelscan->r_offset,
-+ irelscan->r_addend);
-+ }
-+ if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32)
-+ {
-+ isym = isymbuf + ELF32_R_SYM (irelscan->r_info);
-+
-+ /* Look at the reloc only if the value has been resolved. */
-+ if (isym->st_shndx == shndx
-+ && (ELF32_ST_TYPE (isym->st_info) == STT_SECTION))
-+ {
-+ if (ocontents == NULL)
-+ {
-+ if (elf_section_data (o)->this_hdr.contents != NULL)
-+ ocontents = elf_section_data (o)->this_hdr.contents;
-+ else
-+ {
-+ /* We always cache the section contents.
-+ Perhaps, if info->keep_memory is FALSE, we
-+ should free them, if we are permitted to. */
-+ if (o->rawsize == 0)
-+ o->rawsize = o->size;
-+ ocontents = (bfd_byte *) bfd_malloc (o->rawsize);
-+ if (ocontents == NULL)
-+ goto error_return;
-+ if (!bfd_get_section_contents (abfd, o, ocontents,
-+ (file_ptr) 0,
- o->rawsize))
- goto error_return;
- elf_section_data (o)->this_hdr.contents = ocontents;
-@@ -2032,7 +2100,7 @@ microblaze_elf_relax_section (bfd *abfd,
- elf_section_data (o)->this_hdr.contents = ocontents;
- }
- }
-- irelscan->r_addend -= calc_fixup (irel->r_addend
-+ irelscan->r_addend -= calc_fixup (irelscan->r_addend
- + isym->st_value,
- 0,
- sec);
-Index: gdb-9.2/bfd/libbfd.h
-===================================================================
---- gdb-9.2.orig/bfd/libbfd.h
-+++ gdb-9.2/bfd/libbfd.h
-@@ -2903,6 +2903,7 @@ static const char *const bfd_reloc_code_
- "BFD_RELOC_MICROBLAZE_32_ROSDA",
- "BFD_RELOC_MICROBLAZE_32_RWSDA",
- "BFD_RELOC_MICROBLAZE_32_SYM_OP_SYM",
-+ "BFD_RELOC_MICROBLAZE_32_NONE",
- "BFD_RELOC_MICROBLAZE_64_NONE",
- "BFD_RELOC_MICROBLAZE_64_GOTPC",
- "BFD_RELOC_MICROBLAZE_64_GOT",
-Index: gdb-9.2/bfd/reloc.c
-===================================================================
---- gdb-9.2.orig/bfd/reloc.c
-+++ gdb-9.2/bfd/reloc.c
-@@ -6807,6 +6807,12 @@ ENUMDOC
- This is a 32 bit reloc for the microblaze to handle
- expressions of the form "Symbol Op Symbol"
- ENUM
-+ BFD_RELOC_MICROBLAZE_32_NONE
-+ENUMDOC
-+ This is a 32 bit reloc that stores the 32 bit pc relative
-+ value in two words (with an imm instruction). No relocation is
-+ done here - only used for relaxing
-+ENUM
- BFD_RELOC_MICROBLAZE_64_NONE
- ENUMDOC
- This is a 64 bit reloc that stores the 32 bit pc relative
-Index: gdb-9.2/include/elf/microblaze.h
-===================================================================
---- gdb-9.2.orig/include/elf/microblaze.h
-+++ gdb-9.2/include/elf/microblaze.h
-@@ -61,6 +61,8 @@ START_RELOC_NUMBERS (elf_microblaze_relo
- RELOC_NUMBER (R_MICROBLAZE_TEXTPCREL_64, 30) /* PC-relative TEXT offset. */
- RELOC_NUMBER (R_MICROBLAZE_TEXTREL_64, 31) /* TEXT Entry offset 64-bit. */
- RELOC_NUMBER (R_MICROBLAZE_TEXTREL_32_LO, 32) /* TEXT Entry offset 32-bit. */
-+ RELOC_NUMBER (R_MICROBLAZE_32_NONE, 33)
-+
- END_RELOC_NUMBERS (R_MICROBLAZE_max)
-
- /* Global base address names. */
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-04 04:20:02 +0000