diff options
Diffstat (limited to 'meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gdb/files/0014-LOCAL-Fixup-debug_loc-sections-after-linker-relaxati.patch')
-rw-r--r-- | meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gdb/files/0014-LOCAL-Fixup-debug_loc-sections-after-linker-relaxati.patch | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gdb/files/0014-LOCAL-Fixup-debug_loc-sections-after-linker-relaxati.patch b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gdb/files/0014-LOCAL-Fixup-debug_loc-sections-after-linker-relaxati.patch deleted file mode 100644 index 85cee9d5d..000000000 --- a/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gdb/files/0014-LOCAL-Fixup-debug_loc-sections-after-linker-relaxati.patch +++ /dev/null @@ -1,192 +0,0 @@ -From aca2758cff1f8fdc5ad7b6076ef985ba9ec5f857 Mon Sep 17 00:00:00 2001 -From: David Holsgrove <david.holsgrove@xilinx.com> -Date: Mon, 4 Feb 2013 12:15:22 +1000 -Subject: [PATCH 14/16] [LOCAL]: 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> -Upstream-Status: Pending ---- - bfd/bfd-in2.h | 5 +++++ - bfd/elf32-microblaze.c | 45 +++++++++++++++++++++++++++++++++++++-------- - bfd/libbfd.h | 1 + - bfd/reloc.c | 6 ++++++ - include/elf/microblaze.h | 1 + - 5 files changed, 50 insertions(+), 8 deletions(-) - -diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h -index 8b7f2ee..de38907 100644 ---- a/bfd/bfd-in2.h -+++ b/bfd/bfd-in2.h -@@ -5449,6 +5449,11 @@ value relative to the read-write small data area anchor */ - 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 */ -diff --git a/bfd/elf32-microblaze.c b/bfd/elf32-microblaze.c -index f90df47..a3f89b9 100644 ---- a/bfd/elf32-microblaze.c -+++ b/bfd/elf32-microblaze.c -@@ -177,6 +177,20 @@ static reloc_howto_type microblaze_elf_howto_raw[] = - 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. */ - 2, /* Size (0 = byte, 1 = short, 2 = long). */ -@@ -532,7 +546,10 @@ microblaze_elf_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, - 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: -@@ -1913,14 +1930,22 @@ 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); -+ -+ /* 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, -@@ -1968,12 +1993,16 @@ 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_NONE) -+ 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) - { -@@ -1998,15 +2027,15 @@ microblaze_elf_relax_section (bfd *abfd, - } - } - -- irelscan->r_addend -= calc_fixup (irelscan->r_addend -- + isym->st_value, sec); - 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_64_NONE) { -- fprintf(stderr, "Unhandled NONE 64\n"); -- } - if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32) - { - isym = isymbuf + ELF32_R_SYM (irelscan->r_info); -@@ -2066,7 +2095,7 @@ 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); -diff --git a/bfd/libbfd.h b/bfd/libbfd.h -index 09f307f..840c662 100644 ---- a/bfd/libbfd.h -+++ b/bfd/libbfd.h -@@ -2644,6 +2644,7 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@", - "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", -diff --git a/bfd/reloc.c b/bfd/reloc.c -index 7f46c58..5bcd52d 100644 ---- a/bfd/reloc.c -+++ b/bfd/reloc.c -@@ -6396,6 +6396,12 @@ 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 -diff --git a/include/elf/microblaze.h b/include/elf/microblaze.h -index effca20..f8420dc 100644 ---- a/include/elf/microblaze.h -+++ b/include/elf/microblaze.h -@@ -58,6 +58,7 @@ START_RELOC_NUMBERS (elf_microblaze_reloc_type) - RELOC_NUMBER (R_MICROBLAZE_TLSDTPREL64, 27) /* TLS Offset Within TLS Block */ - RELOC_NUMBER (R_MICROBLAZE_TLSGOTTPREL32, 28) /* TLS Offset From Thread Pointer */ - RELOC_NUMBER (R_MICROBLAZE_TLSTPREL32, 29) /* TLS Offset From Thread Pointer */ -+ RELOC_NUMBER (R_MICROBLAZE_32_NONE, 30) - - END_RELOC_NUMBERS (R_MICROBLAZE_max) - --- -1.9.0 - |