mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-11-23 20:19:49 +00:00
2005-10-01 Paul Brook <paul@codesourcery.com>
* readelf.c (arm_attr_tag_CPU_arch, arm_attr_tag_ARM_ISA_use, arm_attr_tag_THUMB_ISA_use, arm_attr_tag_VFP_arch, arm_attr_tag_WMMX_arch, arm_attr_tag_NEON_arch, arm_attr_tag_ABI_PCS_config, arm_attr_tag_ABI_PCS_R9_use, arm_attr_tag_ABI_PCS_RW_data, arm_attr_tag_ABI_PCS_RO_DATA, arm_attr_tag_ABI_PCS_GOT_use, arm_attr_tag_ABI_PCS_wchar_t, arm_attr_tag_ABI_FP_rounding, arm_attr_tag_ABI_FP_denormal, arm_attr_tag_ABI_FP_exceptions, arm_attr_tag_ABI_FP_user_exceptions, arm_attr_tag_ABI_FP_number_model, arm_attr_tag_ABI_align8_needed, arm_attr_tag_ABI_align8_preserved, arm_attr_tag_ABI_enum_size, arm_attr_tag_ABI_HardFP_use, arm_attr_tag_ABI_VFP_args, arm_attr_tag_ABI_WMMX_args, arm_attr_tag_ABI_optimization_goals, arm_attr_tag_ABI_FP_optimization_goals, arm_attr_public_tags): New. (display_arm_attribute, process_arm_specific): New functions. (process_arch_specific): Add EM_ARM.
This commit is contained in:
Paul Brook
parent
4b2e80a669
commit
11c1ff1859
@ -1,3 +1,21 @@
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2005-10-01 Paul Brook <paul@codesourcery.com>
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* readelf.c (arm_attr_tag_CPU_arch, arm_attr_tag_ARM_ISA_use,
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arm_attr_tag_THUMB_ISA_use, arm_attr_tag_VFP_arch,
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arm_attr_tag_WMMX_arch, arm_attr_tag_NEON_arch,
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arm_attr_tag_ABI_PCS_config, arm_attr_tag_ABI_PCS_R9_use,
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arm_attr_tag_ABI_PCS_RW_data, arm_attr_tag_ABI_PCS_RO_DATA,
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arm_attr_tag_ABI_PCS_GOT_use, arm_attr_tag_ABI_PCS_wchar_t,
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arm_attr_tag_ABI_FP_rounding, arm_attr_tag_ABI_FP_denormal,
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arm_attr_tag_ABI_FP_exceptions, arm_attr_tag_ABI_FP_user_exceptions,
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arm_attr_tag_ABI_FP_number_model, arm_attr_tag_ABI_align8_needed,
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arm_attr_tag_ABI_align8_preserved, arm_attr_tag_ABI_enum_size,
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arm_attr_tag_ABI_HardFP_use, arm_attr_tag_ABI_VFP_args,
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arm_attr_tag_ABI_WMMX_args, arm_attr_tag_ABI_optimization_goals,
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arm_attr_tag_ABI_FP_optimization_goals, arm_attr_public_tags): New.
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(display_arm_attribute, process_arm_specific): New functions.
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(process_arch_specific): Add EM_ARM.
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2005-09-30 Mark Mitchell <mark@codesourcery.com>
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* dlltool.c (main): Fix typo.
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@ -7548,6 +7548,337 @@ process_mips_fpe_exception (int mask)
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fputs ("0", stdout);
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}
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/* ARM EABI attributes section. */
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typedef struct
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{
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int tag;
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const char *name;
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/* 0 = special, 1 = string, 2 = uleb123, > 0x80 == table lookup. */
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int type;
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const char **table;
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} arm_attr_public_tag;
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static const char *arm_attr_tag_CPU_arch[] =
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{"Pre-v4", "v4", "v4T", "v5T", "v5TE", "v5TEJ", "v6", "v6KZ", "v6T2",
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"v6K", "v7"};
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static const char *arm_attr_tag_ARM_ISA_use[] = {"No", "Yes"};
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static const char *arm_attr_tag_THUMB_ISA_use[] =
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{"No", "Thumb-1", "Thumb-2"};
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static const char *arm_attr_tag_VFP_arch[] = {"No", "VFPv1", "VFPv2"};
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static const char *arm_attr_tag_WMMX_arch[] = {"No", "WMMXv1"};
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static const char *arm_attr_tag_NEON_arch[] = {"No", "NEONv1"};
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static const char *arm_attr_tag_ABI_PCS_config[] =
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{"None", "Bare platform", "Linux application", "Linux DSO", "PalmOS 2004",
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"PalmOS (reserved)", "SymbianOS 2004", "SymbianOS (reserved)"};
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static const char *arm_attr_tag_ABI_PCS_R9_use[] =
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{"V6", "SB", "TLS", "Unused"};
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static const char *arm_attr_tag_ABI_PCS_RW_data[] =
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{"Absolute", "PC-relative", "SB-relative", "None"};
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static const char *arm_attr_tag_ABI_PCS_RO_DATA[] =
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{"Absolute", "PC-relative", "None"};
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static const char *arm_attr_tag_ABI_PCS_GOT_use[] =
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{"None", "direct", "GOT-indirect"};
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static const char *arm_attr_tag_ABI_PCS_wchar_t[] =
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{"None", "??? 1", "2", "??? 3", "4"};
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static const char *arm_attr_tag_ABI_FP_rounding[] = {"Unused", "Needed"};
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static const char *arm_attr_tag_ABI_FP_denormal[] = {"Unused", "Needed"};
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static const char *arm_attr_tag_ABI_FP_exceptions[] = {"Unused", "Needed"};
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static const char *arm_attr_tag_ABI_FP_user_exceptions[] = {"Unused", "Needed"};
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static const char *arm_attr_tag_ABI_FP_number_model[] =
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{"Unused", "Finite", "RTABI", "IEEE 754"};
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static const char *arm_attr_tag_ABI_align8_needed[] = {"No", "Yes", "4-byte"};
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static const char *arm_attr_tag_ABI_align8_preserved[] =
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{"No", "Yes, except leaf SP", "Yes"};
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static const char *arm_attr_tag_ABI_enum_size[] =
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{"Unused", "small", "int", "forced to int"};
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static const char *arm_attr_tag_ABI_HardFP_use[] =
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{"As Tag_VFP_arch", "SP only", "DP only", "SP and DP"};
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static const char *arm_attr_tag_ABI_VFP_args[] =
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{"AAPCS", "VFP registers", "custom"};
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static const char *arm_attr_tag_ABI_WMMX_args[] =
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{"AAPCS", "WMMX registers", "custom"};
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static const char *arm_attr_tag_ABI_optimization_goals[] =
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{"None", "Prefer Speed", "Aggressive Speed", "Prefer Size",
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"Aggressive Size", "Prefer Debug", "Aggressive Debug"};
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static const char *arm_attr_tag_ABI_FP_optimization_goals[] =
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{"None", "Prefer Speed", "Aggressive Speed", "Prefer Size",
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"Aggressive Size", "Prefer Accuracy", "Aggressive Accuracy"};
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#define LOOKUP(id, name) \
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{id, #name, 0x80 | ARRAY_SIZE(arm_attr_tag_##name), arm_attr_tag_##name}
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static arm_attr_public_tag arm_attr_public_tags[] =
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{
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{4, "CPU_raw_name", 1, NULL},
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{5, "CPU_name", 1, NULL},
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LOOKUP(6, CPU_arch),
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{7, "CPU_arch_profile", 0, NULL},
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LOOKUP(8, ARM_ISA_use),
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LOOKUP(9, THUMB_ISA_use),
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LOOKUP(10, VFP_arch),
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LOOKUP(11, WMMX_arch),
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LOOKUP(12, NEON_arch),
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LOOKUP(13, ABI_PCS_config),
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LOOKUP(14, ABI_PCS_R9_use),
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LOOKUP(15, ABI_PCS_RW_data),
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LOOKUP(16, ABI_PCS_RO_DATA),
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LOOKUP(17, ABI_PCS_GOT_use),
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LOOKUP(18, ABI_PCS_wchar_t),
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LOOKUP(19, ABI_FP_rounding),
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LOOKUP(20, ABI_FP_denormal),
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LOOKUP(21, ABI_FP_exceptions),
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LOOKUP(22, ABI_FP_user_exceptions),
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LOOKUP(23, ABI_FP_number_model),
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LOOKUP(24, ABI_align8_needed),
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LOOKUP(25, ABI_align8_preserved),
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LOOKUP(26, ABI_enum_size),
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LOOKUP(27, ABI_HardFP_use),
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LOOKUP(28, ABI_VFP_args),
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LOOKUP(29, ABI_WMMX_args),
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LOOKUP(30, ABI_optimization_goals),
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LOOKUP(31, ABI_FP_optimization_goals),
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{32, "compatibility", 0, NULL}
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};
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#undef LOOKUP
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/* Read an unsigned LEB128 encoded value from p. Set *PLEN to the number of
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bytes read. */
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static unsigned int
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read_uleb128 (unsigned char *p, unsigned int *plen)
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{
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unsigned char c;
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unsigned int val;
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int shift;
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int len;
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val = 0;
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shift = 0;
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len = 0;
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do
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{
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c = *(p++);
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len++;
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val |= ((unsigned int)c & 0x7f) << shift;
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shift += 7;
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}
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while (c & 0x80);
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*plen = len;
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return val;
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}
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static unsigned char *
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display_arm_attribute (unsigned char *p)
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{
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int tag;
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unsigned int len;
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int val;
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arm_attr_public_tag *attr;
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unsigned i;
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int type;
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tag = read_uleb128 (p, &len);
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p += len;
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attr = NULL;
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for (i = 0; i < ARRAY_SIZE(arm_attr_public_tags); i++)
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{
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if (arm_attr_public_tags[i].tag == tag)
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{
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attr = &arm_attr_public_tags[i];
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break;
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}
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}
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if (attr)
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{
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printf (" Tag_%s: ", attr->name);
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switch (attr->type)
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{
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case 0:
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switch (tag)
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{
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case 7: /* Tag_CPU_arch_profile. */
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val = read_uleb128 (p, &len);
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p += len;
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switch (val)
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{
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case 0: printf ("None\n"); break;
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case 'A': printf ("Application\n"); break;
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case 'R': printf ("Realtime\n"); break;
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case 'M': printf ("Microcontroller\n"); break;
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default: printf ("??? (%d)\n", val); break;
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}
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break;
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case 32: /* Tag_compatibility. */
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val = read_uleb128 (p, &len);
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p += len;
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printf ("flag = %d, vendor = %s\n", val, p);
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p += strlen((char *)p) + 1;
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break;
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default:
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abort();
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}
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return p;
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case 1:
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case 2:
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type = attr->type;
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break;
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default:
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assert (attr->type & 0x80);
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val = read_uleb128 (p, &len);
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p += len;
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type = attr->type & 0x7f;
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if (val >= type)
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printf ("??? (%d)\n", val);
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else
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printf ("%s\n", attr->table[val]);
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return p;
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}
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}
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else
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{
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if (tag & 1)
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type = 1; /* String. */
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else
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type = 2; /* uleb128. */
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printf (" Tag_unknown_%d: ", tag);
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}
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if (type == 1)
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{
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printf ("\"%s\"\n", p);
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p += strlen((char *)p) + 1;
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}
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else
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{
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val = read_uleb128 (p, &len);
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p += len;
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printf ("%d (0x%x)\n", val, val);
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}
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return p;
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}
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static int
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process_arm_specific (FILE *file)
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{
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Elf_Internal_Shdr *sect;
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unsigned char *contents;
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unsigned char *p;
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unsigned char *end;
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bfd_vma section_len;
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bfd_vma len;
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unsigned i;
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/* Find the section header so that we get the size. */
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for (i = 0, sect = section_headers;
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i < elf_header.e_shnum;
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i++, sect++)
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{
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if (sect->sh_type != SHT_ARM_ATTRIBUTES)
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continue;
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contents = get_data (NULL, file, sect->sh_offset, 1, sect->sh_size,
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_("attributes"));
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if (!contents)
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continue;
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p = contents;
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if (*p == 'A')
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{
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len = sect->sh_size - 1;
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p++;
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while (len > 0)
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{
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int namelen;
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bfd_boolean public_section;
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section_len = byte_get (p, 4);
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p += 4;
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if (section_len > len)
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{
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printf (_("ERROR: Bad section length (%d > %d)\n"),
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(int)section_len, (int)len);
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section_len = len;
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}
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len -= section_len;
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printf ("Attribute Section: %s\n", p);
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if (strcmp ((char *)p, "aeabi") == 0)
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public_section = TRUE;
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else
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public_section = FALSE;
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namelen = strlen ((char *)p) + 1;
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p += namelen;
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section_len -= namelen + 4;
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while (section_len > 0)
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{
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int tag = *(p++);
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int val;
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bfd_vma size;
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size = byte_get (p, 4);
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if (size > section_len)
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{
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printf (_("ERROR: Bad subsection length (%d > %d)\n"),
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(int)size, (int)section_len);
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size = section_len;
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}
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section_len -= size;
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end = p + size - 1;
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p += 4;
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switch (tag)
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{
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case 1:
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printf ("File Attributes\n");
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break;
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case 2:
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printf ("Section Attributes:");
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goto do_numlist;
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case 3:
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printf ("Symbol Attributes:");
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do_numlist:
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for (;;)
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{
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unsigned int i;
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val = read_uleb128 (p, &i);
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p += i;
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if (val == 0)
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break;
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printf (" %d", val);
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}
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printf ("\n");
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break;
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default:
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printf ("Unknown tag: %d\n", tag);
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public_section = FALSE;
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break;
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}
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if (public_section)
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{
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while (p < end)
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p = display_arm_attribute(p);
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}
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else
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{
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/* ??? Do something sensible, like dump hex. */
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printf (" Unknown section contexts\n");
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p = end;
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}
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}
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}
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}
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else
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{
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printf (_("Unknown format '%c'\n"), *p);
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}
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free(contents);
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}
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return 1;
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}
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static int
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process_mips_specific (FILE *file)
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{
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@ -8317,6 +8648,8 @@ process_arch_specific (FILE *file)
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switch (elf_header.e_machine)
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{
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case EM_ARM:
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return process_arm_specific (file);
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case EM_MIPS:
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case EM_MIPS_RS3_LE:
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return process_mips_specific (file);
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