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citadel/poky/meta/recipes-devtools/elfutils/files/debian/arm_backend.diff

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Upstream-Status: Backport [from debian]
Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Index: b/backends/arm_init.c
===================================================================
--- a/backends/arm_init.c
+++ b/backends/arm_init.c
@@ -35,20 +35,31 @@
#define RELOC_PREFIX R_ARM_
#include "libebl_CPU.h"
+#include "libebl_arm.h"
+
/* This defines the common reloc hooks based on arm_reloc.def. */
#include "common-reloc.c"
const char *
-arm_init (Elf *elf __attribute__ ((unused)),
+arm_init (Elf *elf,
GElf_Half machine __attribute__ ((unused)),
Ebl *eh,
size_t ehlen)
{
+ int soft_float = 0;
+
/* Check whether the Elf_BH object has a sufficent size. */
if (ehlen < sizeof (Ebl))
return NULL;
+ if (elf) {
+ GElf_Ehdr ehdr_mem;
+ GElf_Ehdr *ehdr = gelf_getehdr (elf, &ehdr_mem);
+ if (ehdr && (ehdr->e_flags & EF_ARM_SOFT_FLOAT))
+ soft_float = 1;
+ }
+
/* We handle it. */
eh->name = "ARM";
arm_init_reloc (eh);
@@ -60,7 +71,10 @@ arm_init (Elf *elf __attribute__ ((unuse
HOOK (eh, core_note);
HOOK (eh, auxv_info);
HOOK (eh, check_object_attribute);
- HOOK (eh, return_value_location);
+ if (soft_float)
+ eh->return_value_location = arm_return_value_location_soft;
+ else
+ eh->return_value_location = arm_return_value_location_hard;
HOOK (eh, abi_cfi);
HOOK (eh, check_reloc_target_type);
HOOK (eh, symbol_type_name);
Index: b/backends/arm_regs.c
===================================================================
--- a/backends/arm_regs.c
+++ b/backends/arm_regs.c
@@ -31,6 +31,7 @@
#endif
#include <string.h>
+#include <stdio.h>
#include <dwarf.h>
#define BACKEND arm_
@@ -76,6 +77,9 @@ arm_register_info (Ebl *ebl __attribute_
break;
case 16 + 0 ... 16 + 7:
+ /* AADWARF says that there are no registers in that range,
+ * but gcc maps FPA registers here
+ */
regno += 96 - 16;
/* Fall through. */
case 96 + 0 ... 96 + 7:
@@ -87,11 +91,139 @@ arm_register_info (Ebl *ebl __attribute_
namelen = 2;
break;
+ case 64 + 0 ... 64 + 9:
+ *setname = "VFP";
+ *bits = 32;
+ *type = DW_ATE_float;
+ name[0] = 's';
+ name[1] = regno - 64 + '0';
+ namelen = 2;
+ break;
+
+ case 64 + 10 ... 64 + 31:
+ *setname = "VFP";
+ *bits = 32;
+ *type = DW_ATE_float;
+ name[0] = 's';
+ name[1] = (regno - 64) / 10 + '0';
+ name[2] = (regno - 64) % 10 + '0';
+ namelen = 3;
+ break;
+
+ case 104 + 0 ... 104 + 7:
+ /* XXX TODO:
+ * This can be either intel wireless MMX general purpose/control
+ * registers or xscale accumulator, which have different usage.
+ * We only have the intel wireless MMX here now.
+ * The name needs to be changed for the xscale accumulator too. */
+ *setname = "MMX";
+ *type = DW_ATE_unsigned;
+ *bits = 32;
+ memcpy(name, "wcgr", 4);
+ name[4] = regno - 104 + '0';
+ namelen = 5;
+ break;
+
+ case 112 + 0 ... 112 + 9:
+ *setname = "MMX";
+ *type = DW_ATE_unsigned;
+ *bits = 64;
+ name[0] = 'w';
+ name[1] = 'r';
+ name[2] = regno - 112 + '0';
+ namelen = 3;
+ break;
+
+ case 112 + 10 ... 112 + 15:
+ *setname = "MMX";
+ *type = DW_ATE_unsigned;
+ *bits = 64;
+ name[0] = 'w';
+ name[1] = 'r';
+ name[2] = '1';
+ name[3] = regno - 112 - 10 + '0';
+ namelen = 4;
+ break;
+
case 128:
+ *setname = "state";
*type = DW_ATE_unsigned;
return stpcpy (name, "spsr") + 1 - name;
+ case 129:
+ *setname = "state";
+ *type = DW_ATE_unsigned;
+ return stpcpy(name, "spsr_fiq") + 1 - name;
+
+ case 130:
+ *setname = "state";
+ *type = DW_ATE_unsigned;
+ return stpcpy(name, "spsr_irq") + 1 - name;
+
+ case 131:
+ *setname = "state";
+ *type = DW_ATE_unsigned;
+ return stpcpy(name, "spsr_abt") + 1 - name;
+
+ case 132:
+ *setname = "state";
+ *type = DW_ATE_unsigned;
+ return stpcpy(name, "spsr_und") + 1 - name;
+
+ case 133:
+ *setname = "state";
+ *type = DW_ATE_unsigned;
+ return stpcpy(name, "spsr_svc") + 1 - name;
+
+ case 144 ... 150:
+ *setname = "integer";
+ *type = DW_ATE_signed;
+ *bits = 32;
+ return sprintf(name, "r%d_usr", regno - 144 + 8) + 1;
+
+ case 151 ... 157:
+ *setname = "integer";
+ *type = DW_ATE_signed;
+ *bits = 32;
+ return sprintf(name, "r%d_fiq", regno - 151 + 8) + 1;
+
+ case 158 ... 159:
+ *setname = "integer";
+ *type = DW_ATE_signed;
+ *bits = 32;
+ return sprintf(name, "r%d_irq", regno - 158 + 13) + 1;
+
+ case 160 ... 161:
+ *setname = "integer";
+ *type = DW_ATE_signed;
+ *bits = 32;
+ return sprintf(name, "r%d_abt", regno - 160 + 13) + 1;
+
+ case 162 ... 163:
+ *setname = "integer";
+ *type = DW_ATE_signed;
+ *bits = 32;
+ return sprintf(name, "r%d_und", regno - 162 + 13) + 1;
+
+ case 164 ... 165:
+ *setname = "integer";
+ *type = DW_ATE_signed;
+ *bits = 32;
+ return sprintf(name, "r%d_svc", regno - 164 + 13) + 1;
+
+ case 192 ... 199:
+ *setname = "MMX";
+ *bits = 32;
+ *type = DW_ATE_unsigned;
+ name[0] = 'w';
+ name[1] = 'c';
+ name[2] = regno - 192 + '0';
+ namelen = 3;
+ break;
+
case 256 + 0 ... 256 + 9:
+ /* XXX TODO: Neon also uses those registers and can contain
+ * both float and integers */
*setname = "VFP";
*type = DW_ATE_float;
*bits = 64;
Index: b/backends/arm_retval.c
===================================================================
--- a/backends/arm_retval.c
+++ b/backends/arm_retval.c
@@ -48,6 +48,13 @@ static const Dwarf_Op loc_intreg[] =
#define nloc_intreg 1
#define nloc_intregs(n) (2 * (n))
+/* f1 */ /* XXX TODO: f0 can also have number 96 if program was compiled with -mabi=aapcs */
+static const Dwarf_Op loc_fpreg[] =
+ {
+ { .atom = DW_OP_reg16 },
+ };
+#define nloc_fpreg 1
+
/* The return value is a structure and is actually stored in stack space
passed in a hidden argument by the caller. But, the compiler
helpfully returns the address of that space in r0. */
@@ -58,8 +65,9 @@ static const Dwarf_Op loc_aggregate[] =
#define nloc_aggregate 1
-int
-arm_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
+static int
+arm_return_value_location_ (Dwarf_Die *functypedie, const Dwarf_Op **locp,
+ int soft_float)
{
/* Start with the function's type, and get the DW_AT_type attribute,
which is the type of the return value. */
@@ -98,6 +106,21 @@ arm_return_value_location (Dwarf_Die *fu
else
return -1;
}
+ if (tag == DW_TAG_base_type)
+ {
+ Dwarf_Word encoding;
+ if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_encoding,
+ &attr_mem), &encoding) != 0)
+ return -1;
+
+ if ((encoding == DW_ATE_float) && !soft_float)
+ {
+ *locp = loc_fpreg;
+ if (size <= 8)
+ return nloc_fpreg;
+ goto aggregate;
+ }
+ }
if (size <= 16)
{
intreg:
@@ -106,6 +129,7 @@ arm_return_value_location (Dwarf_Die *fu
}
aggregate:
+ /* XXX TODO sometimes aggregates are returned in r0 (-mabi=aapcs) */
*locp = loc_aggregate;
return nloc_aggregate;
}
@@ -125,3 +149,18 @@ arm_return_value_location (Dwarf_Die *fu
DWARF and might be valid. */
return -2;
}
+
+/* return location for -mabi=apcs-gnu -msoft-float */
+int
+arm_return_value_location_soft (Dwarf_Die *functypedie, const Dwarf_Op **locp)
+{
+ return arm_return_value_location_ (functypedie, locp, 1);
+}
+
+/* return location for -mabi=apcs-gnu -mhard-float (current default) */
+int
+arm_return_value_location_hard (Dwarf_Die *functypedie, const Dwarf_Op **locp)
+{
+ return arm_return_value_location_ (functypedie, locp, 0);
+}
+
Index: b/libelf/elf.h
===================================================================
--- a/libelf/elf.h
+++ b/libelf/elf.h
@@ -2593,6 +2593,9 @@ enum
#define EF_ARM_EABI_VER4 0x04000000
#define EF_ARM_EABI_VER5 0x05000000
+/* EI_OSABI values */
+#define ELFOSABI_ARM_AEABI 64 /* Contains symbol versioning. */
+
/* Additional symbol types for Thumb. */
#define STT_ARM_TFUNC STT_LOPROC /* A Thumb function. */
#define STT_ARM_16BIT STT_HIPROC /* A Thumb label. */
@@ -2610,12 +2613,19 @@ enum
/* Processor specific values for the Phdr p_type field. */
#define PT_ARM_EXIDX (PT_LOPROC + 1) /* ARM unwind segment. */
+#define PT_ARM_UNWIND PT_ARM_EXIDX
/* Processor specific values for the Shdr sh_type field. */
#define SHT_ARM_EXIDX (SHT_LOPROC + 1) /* ARM unwind section. */
#define SHT_ARM_PREEMPTMAP (SHT_LOPROC + 2) /* Preemption details. */
#define SHT_ARM_ATTRIBUTES (SHT_LOPROC + 3) /* ARM attributes section. */
+/* Processor specific values for the Dyn d_tag field. */
+#define DT_ARM_RESERVED1 (DT_LOPROC + 0)
+#define DT_ARM_SYMTABSZ (DT_LOPROC + 1)
+#define DT_ARM_PREEMTMAB (DT_LOPROC + 2)
+#define DT_ARM_RESERVED2 (DT_LOPROC + 3)
+#define DT_ARM_NUM 4
/* AArch64 relocs. */
@@ -2908,6 +2918,7 @@ enum
TLS block (LDR, STR). */
#define R_ARM_TLS_IE12GP 111 /* 12 bit GOT entry relative
to GOT origin (LDR). */
+/* 112 - 127 private range */
#define R_ARM_ME_TOO 128 /* Obsolete. */
#define R_ARM_THM_TLS_DESCSEQ 129
#define R_ARM_THM_TLS_DESCSEQ16 129
Index: b/backends/libebl_arm.h
===================================================================
--- /dev/null
+++ b/backends/libebl_arm.h
@@ -0,0 +1,9 @@
+#ifndef _LIBEBL_ARM_H
+#define _LIBEBL_ARM_H 1
+
+#include <libdw.h>
+
+extern int arm_return_value_location_soft(Dwarf_Die *, const Dwarf_Op **locp);
+extern int arm_return_value_location_hard(Dwarf_Die *, const Dwarf_Op **locp);
+
+#endif
Index: b/tests/run-allregs.sh
===================================================================
--- a/tests/run-allregs.sh
+++ b/tests/run-allregs.sh
@@ -2672,7 +2672,28 @@ integer registers:
13: sp (sp), address 32 bits
14: lr (lr), address 32 bits
15: pc (pc), address 32 bits
- 128: spsr (spsr), unsigned 32 bits
+ 144: r8_usr (r8_usr), signed 32 bits
+ 145: r9_usr (r9_usr), signed 32 bits
+ 146: r10_usr (r10_usr), signed 32 bits
+ 147: r11_usr (r11_usr), signed 32 bits
+ 148: r12_usr (r12_usr), signed 32 bits
+ 149: r13_usr (r13_usr), signed 32 bits
+ 150: r14_usr (r14_usr), signed 32 bits
+ 151: r8_fiq (r8_fiq), signed 32 bits
+ 152: r9_fiq (r9_fiq), signed 32 bits
+ 153: r10_fiq (r10_fiq), signed 32 bits
+ 154: r11_fiq (r11_fiq), signed 32 bits
+ 155: r12_fiq (r12_fiq), signed 32 bits
+ 156: r13_fiq (r13_fiq), signed 32 bits
+ 157: r14_fiq (r14_fiq), signed 32 bits
+ 158: r13_irq (r13_irq), signed 32 bits
+ 159: r14_irq (r14_irq), signed 32 bits
+ 160: r13_abt (r13_abt), signed 32 bits
+ 161: r14_abt (r14_abt), signed 32 bits
+ 162: r13_und (r13_und), signed 32 bits
+ 163: r14_und (r14_und), signed 32 bits
+ 164: r13_svc (r13_svc), signed 32 bits
+ 165: r14_svc (r14_svc), signed 32 bits
FPA registers:
16: f0 (f0), float 96 bits
17: f1 (f1), float 96 bits
@@ -2690,7 +2711,72 @@ FPA registers:
101: f5 (f5), float 96 bits
102: f6 (f6), float 96 bits
103: f7 (f7), float 96 bits
+MMX registers:
+ 104: wcgr0 (wcgr0), unsigned 32 bits
+ 105: wcgr1 (wcgr1), unsigned 32 bits
+ 106: wcgr2 (wcgr2), unsigned 32 bits
+ 107: wcgr3 (wcgr3), unsigned 32 bits
+ 108: wcgr4 (wcgr4), unsigned 32 bits
+ 109: wcgr5 (wcgr5), unsigned 32 bits
+ 110: wcgr6 (wcgr6), unsigned 32 bits
+ 111: wcgr7 (wcgr7), unsigned 32 bits
+ 112: wr0 (wr0), unsigned 64 bits
+ 113: wr1 (wr1), unsigned 64 bits
+ 114: wr2 (wr2), unsigned 64 bits
+ 115: wr3 (wr3), unsigned 64 bits
+ 116: wr4 (wr4), unsigned 64 bits
+ 117: wr5 (wr5), unsigned 64 bits
+ 118: wr6 (wr6), unsigned 64 bits
+ 119: wr7 (wr7), unsigned 64 bits
+ 120: wr8 (wr8), unsigned 64 bits
+ 121: wr9 (wr9), unsigned 64 bits
+ 122: wr10 (wr10), unsigned 64 bits
+ 123: wr11 (wr11), unsigned 64 bits
+ 124: wr12 (wr12), unsigned 64 bits
+ 125: wr13 (wr13), unsigned 64 bits
+ 126: wr14 (wr14), unsigned 64 bits
+ 127: wr15 (wr15), unsigned 64 bits
+ 192: wc0 (wc0), unsigned 32 bits
+ 193: wc1 (wc1), unsigned 32 bits
+ 194: wc2 (wc2), unsigned 32 bits
+ 195: wc3 (wc3), unsigned 32 bits
+ 196: wc4 (wc4), unsigned 32 bits
+ 197: wc5 (wc5), unsigned 32 bits
+ 198: wc6 (wc6), unsigned 32 bits
+ 199: wc7 (wc7), unsigned 32 bits
VFP registers:
+ 64: s0 (s0), float 32 bits
+ 65: s1 (s1), float 32 bits
+ 66: s2 (s2), float 32 bits
+ 67: s3 (s3), float 32 bits
+ 68: s4 (s4), float 32 bits
+ 69: s5 (s5), float 32 bits
+ 70: s6 (s6), float 32 bits
+ 71: s7 (s7), float 32 bits
+ 72: s8 (s8), float 32 bits
+ 73: s9 (s9), float 32 bits
+ 74: s10 (s10), float 32 bits
+ 75: s11 (s11), float 32 bits
+ 76: s12 (s12), float 32 bits
+ 77: s13 (s13), float 32 bits
+ 78: s14 (s14), float 32 bits
+ 79: s15 (s15), float 32 bits
+ 80: s16 (s16), float 32 bits
+ 81: s17 (s17), float 32 bits
+ 82: s18 (s18), float 32 bits
+ 83: s19 (s19), float 32 bits
+ 84: s20 (s20), float 32 bits
+ 85: s21 (s21), float 32 bits
+ 86: s22 (s22), float 32 bits
+ 87: s23 (s23), float 32 bits
+ 88: s24 (s24), float 32 bits
+ 89: s25 (s25), float 32 bits
+ 90: s26 (s26), float 32 bits
+ 91: s27 (s27), float 32 bits
+ 92: s28 (s28), float 32 bits
+ 93: s29 (s29), float 32 bits
+ 94: s30 (s30), float 32 bits
+ 95: s31 (s31), float 32 bits
256: d0 (d0), float 64 bits
257: d1 (d1), float 64 bits
258: d2 (d2), float 64 bits
@@ -2723,6 +2809,13 @@ VFP registers:
285: d29 (d29), float 64 bits
286: d30 (d30), float 64 bits
287: d31 (d31), float 64 bits
+state registers:
+ 128: spsr (spsr), unsigned 32 bits
+ 129: spsr_fiq (spsr_fiq), unsigned 32 bits
+ 130: spsr_irq (spsr_irq), unsigned 32 bits
+ 131: spsr_abt (spsr_abt), unsigned 32 bits
+ 132: spsr_und (spsr_und), unsigned 32 bits
+ 133: spsr_svc (spsr_svc), unsigned 32 bits
EOF
# See run-readelf-mixed-corenote.sh for instructions to regenerate
Index: b/tests/run-readelf-mixed-corenote.sh
===================================================================
--- a/tests/run-readelf-mixed-corenote.sh
+++ b/tests/run-readelf-mixed-corenote.sh
@@ -31,12 +31,11 @@ Note segment of 892 bytes at offset 0x27
pid: 11087, ppid: 11063, pgrp: 11087, sid: 11063
utime: 0.000000, stime: 0.010000, cutime: 0.000000, cstime: 0.000000
orig_r0: -1, fpvalid: 1
- r0: 1 r1: -1091672508 r2: -1091672500
- r3: 0 r4: 0 r5: 0
- r6: 33728 r7: 0 r8: 0
- r9: 0 r10: -1225703496 r11: -1091672844
- r12: 0 sp: 0xbeee64f4 lr: 0xb6dc3f48
- pc: 0x00008500 spsr: 0x60000010
+ r0: 1 r1: -1091672508 r2: -1091672500 r3: 0
+ r4: 0 r5: 0 r6: 33728 r7: 0
+ r8: 0 r9: 0 r10: -1225703496 r11: -1091672844
+ r12: 0 sp: 0xbeee64f4 lr: 0xb6dc3f48 pc: 0x00008500
+ spsr: 0x60000010
CORE 124 PRPSINFO
state: 0, sname: R, zomb: 0, nice: 0, flag: 0x00400500
uid: 0, gid: 0, pid: 11087, ppid: 11063, pgrp: 11087, sid: 11063
Index: b/tests/run-addrcfi.sh
===================================================================
--- a/tests/run-addrcfi.sh
+++ b/tests/run-addrcfi.sh
@@ -3554,6 +3554,38 @@ dwarf_cfi_addrframe (.eh_frame): no matc
FPA reg21 (f5): undefined
FPA reg22 (f6): undefined
FPA reg23 (f7): undefined
+ VFP reg64 (s0): undefined
+ VFP reg65 (s1): undefined
+ VFP reg66 (s2): undefined
+ VFP reg67 (s3): undefined
+ VFP reg68 (s4): undefined
+ VFP reg69 (s5): undefined
+ VFP reg70 (s6): undefined
+ VFP reg71 (s7): undefined
+ VFP reg72 (s8): undefined
+ VFP reg73 (s9): undefined
+ VFP reg74 (s10): undefined
+ VFP reg75 (s11): undefined
+ VFP reg76 (s12): undefined
+ VFP reg77 (s13): undefined
+ VFP reg78 (s14): undefined
+ VFP reg79 (s15): undefined
+ VFP reg80 (s16): undefined
+ VFP reg81 (s17): undefined
+ VFP reg82 (s18): undefined
+ VFP reg83 (s19): undefined
+ VFP reg84 (s20): undefined
+ VFP reg85 (s21): undefined
+ VFP reg86 (s22): undefined
+ VFP reg87 (s23): undefined
+ VFP reg88 (s24): undefined
+ VFP reg89 (s25): undefined
+ VFP reg90 (s26): undefined
+ VFP reg91 (s27): undefined
+ VFP reg92 (s28): undefined
+ VFP reg93 (s29): undefined
+ VFP reg94 (s30): undefined
+ VFP reg95 (s31): undefined
FPA reg96 (f0): undefined
FPA reg97 (f1): undefined
FPA reg98 (f2): undefined
@@ -3562,7 +3594,66 @@ dwarf_cfi_addrframe (.eh_frame): no matc
FPA reg101 (f5): undefined
FPA reg102 (f6): undefined
FPA reg103 (f7): undefined
- integer reg128 (spsr): undefined
+ MMX reg104 (wcgr0): undefined
+ MMX reg105 (wcgr1): undefined
+ MMX reg106 (wcgr2): undefined
+ MMX reg107 (wcgr3): undefined
+ MMX reg108 (wcgr4): undefined
+ MMX reg109 (wcgr5): undefined
+ MMX reg110 (wcgr6): undefined
+ MMX reg111 (wcgr7): undefined
+ MMX reg112 (wr0): undefined
+ MMX reg113 (wr1): undefined
+ MMX reg114 (wr2): undefined
+ MMX reg115 (wr3): undefined
+ MMX reg116 (wr4): undefined
+ MMX reg117 (wr5): undefined
+ MMX reg118 (wr6): undefined
+ MMX reg119 (wr7): undefined
+ MMX reg120 (wr8): undefined
+ MMX reg121 (wr9): undefined
+ MMX reg122 (wr10): undefined
+ MMX reg123 (wr11): undefined
+ MMX reg124 (wr12): undefined
+ MMX reg125 (wr13): undefined
+ MMX reg126 (wr14): undefined
+ MMX reg127 (wr15): undefined
+ state reg128 (spsr): undefined
+ state reg129 (spsr_fiq): undefined
+ state reg130 (spsr_irq): undefined
+ state reg131 (spsr_abt): undefined
+ state reg132 (spsr_und): undefined
+ state reg133 (spsr_svc): undefined
+ integer reg144 (r8_usr): undefined
+ integer reg145 (r9_usr): undefined
+ integer reg146 (r10_usr): undefined
+ integer reg147 (r11_usr): undefined
+ integer reg148 (r12_usr): undefined
+ integer reg149 (r13_usr): undefined
+ integer reg150 (r14_usr): undefined
+ integer reg151 (r8_fiq): undefined
+ integer reg152 (r9_fiq): undefined
+ integer reg153 (r10_fiq): undefined
+ integer reg154 (r11_fiq): undefined
+ integer reg155 (r12_fiq): undefined
+ integer reg156 (r13_fiq): undefined
+ integer reg157 (r14_fiq): undefined
+ integer reg158 (r13_irq): undefined
+ integer reg159 (r14_irq): undefined
+ integer reg160 (r13_abt): undefined
+ integer reg161 (r14_abt): undefined
+ integer reg162 (r13_und): undefined
+ integer reg163 (r14_und): undefined
+ integer reg164 (r13_svc): undefined
+ integer reg165 (r14_svc): undefined
+ MMX reg192 (wc0): undefined
+ MMX reg193 (wc1): undefined
+ MMX reg194 (wc2): undefined
+ MMX reg195 (wc3): undefined
+ MMX reg196 (wc4): undefined
+ MMX reg197 (wc5): undefined
+ MMX reg198 (wc6): undefined
+ MMX reg199 (wc7): undefined
VFP reg256 (d0): undefined
VFP reg257 (d1): undefined
VFP reg258 (d2): undefined