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From: Mark Wielaard <mark@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc r11-3447] libiberty: Add get_DW_UT_name and update include/dwarf2.{def, h} Date: Thu, 24 Sep 2020 20:38:11 +0000 (GMT) [thread overview] Message-ID: <20200924203811.2121D398680E@sourceware.org> (raw) https://gcc.gnu.org/g:942ab9e9d4ff1da711daad3e8c71c57fd4c14035 commit r11-3447-g942ab9e9d4ff1da711daad3e8c71c57fd4c14035 Author: Mark Wielaard <mark@klomp.org> Date: Wed Sep 23 16:10:41 2020 +0200 libiberty: Add get_DW_UT_name and update include/dwarf2.{def,h} This adds a get_DW_UT_name function to dwarfnames using dwarf2.def for use in binutils readelf to show the unit types in a DWARF5 header. Also remove DW_CIE_VERSION which was already removed in binutils/gdb and is not used in gcc. include/ChangeLog: * dwarf2.def: Add DWARF5 Unit type header encoding macros DW_UT_FIRST, DW_UT and DW_UT_END. * dwarf2.h (enum dwarf_unit_type): Removed and define using DW_UT_FIRST, DW_UT and DW_UT_END macros. (DW_CIE_VERSION): Removed. (get_DW_UT_name): New function declaration. libiberty/ChangeLog: * dwarfnames.c (get_DW_UT_name): Define using DW_UT_FIRST, DW_UT and DW_UT_END. Diff: --- include/dwarf2.def | 11 +++++++++++ include/dwarf2.h | 25 +++++++++++-------------- libiberty/dwarfnames.c | 7 +++++++ 3 files changed, 29 insertions(+), 14 deletions(-) diff --git a/include/dwarf2.def b/include/dwarf2.def index d8a8cce7947..13825a3eef7 100644 --- a/include/dwarf2.def +++ b/include/dwarf2.def @@ -805,3 +805,14 @@ DW_IDX (DW_IDX_hi_user, 0x3fff) DW_IDX (DW_IDX_GNU_internal, 0x2000) DW_IDX (DW_IDX_GNU_external, 0x2001) DW_END_IDX + +/* DWARF5 Unit type header encodings */ +DW_FIRST_UT (DW_UT_compile, 0x01) +DW_UT (DW_UT_type, 0x02) +DW_UT (DW_UT_partial, 0x03) +DW_UT (DW_UT_skeleton, 0x04) +DW_UT (DW_UT_split_compile, 0x05) +DW_UT (DW_UT_split_type, 0x06) +DW_UT (DW_UT_lo_user, 0x80) +DW_UT (DW_UT_hi_user, 0xff) +DW_END_UT diff --git a/include/dwarf2.h b/include/dwarf2.h index 34273e84a5a..83cf50d7bf5 100644 --- a/include/dwarf2.h +++ b/include/dwarf2.h @@ -55,6 +55,7 @@ #define DW_CFA_DUP(name, value) , name = value #define DW_IDX(name, value) , name = value #define DW_IDX_DUP(name, value) , name = value +#define DW_UT(name, value) , name = value #define DW_FIRST_TAG(name, value) enum dwarf_tag { \ name = value @@ -77,6 +78,9 @@ #define DW_FIRST_IDX(name, value) enum dwarf_name_index_attribute { \ name = value #define DW_END_IDX }; +#define DW_FIRST_UT(name, value) enum dwarf_unit_type { \ + name = value +#define DW_END_UT }; #include "dwarf2.def" @@ -94,6 +98,8 @@ #undef DW_END_CFA #undef DW_FIRST_IDX #undef DW_END_IDX +#undef DW_FIRST_UT +#undef DW_END_UT #undef DW_TAG #undef DW_TAG_DUP @@ -108,6 +114,7 @@ #undef DW_CFA_DUP #undef DW_IDX #undef DW_IDX_DUP +#undef DW_UT /* Flag that tells whether entry has a child or not. */ #define DW_children_no 0 @@ -316,7 +323,6 @@ enum dwarf_location_list_entry_type #define DW_CIE_ID 0xffffffff #define DW64_CIE_ID 0xffffffffffffffffULL -#define DW_CIE_VERSION 1 #define DW_CFA_extended 0 @@ -451,19 +457,6 @@ enum dwarf_range_list_entry DW_RLE_start_end = 0x06, DW_RLE_start_length = 0x07 }; - -/* Unit types in unit_type unit header field. */ -enum dwarf_unit_type - { - DW_UT_compile = 0x01, - DW_UT_type = 0x02, - DW_UT_partial = 0x03, - DW_UT_skeleton = 0x04, - DW_UT_split_compile = 0x05, - DW_UT_split_type = 0x06, - DW_UT_lo_user = 0x80, - DW_UT_hi_user = 0xff - }; \f /* @@@ For use with GNU frame unwind information. */ @@ -552,6 +545,10 @@ extern const char *get_DW_CFA_name (unsigned int opc); recognized. */ extern const char *get_DW_IDX_name (unsigned int idx); +/* Return the name of a DW_UT_ constant, or NULL if the value is not + recognized. */ +extern const char *get_DW_UT_name (unsigned int ut); + #ifdef __cplusplus } #endif /* __cplusplus */ diff --git a/libiberty/dwarfnames.c b/libiberty/dwarfnames.c index 968d1917532..af11668b431 100644 --- a/libiberty/dwarfnames.c +++ b/libiberty/dwarfnames.c @@ -64,6 +64,11 @@ Boston, MA 02110-1301, USA. */ switch (idx) { \ DW_IDX (name, value) #define DW_END_IDX } return 0; } +#define DW_FIRST_UT(name, value) \ + const char *get_DW_UT_name (unsigned int ut) { \ + switch (ut) { \ + DW_UT (name, value) +#define DW_END_UT } return 0; } #define DW_TAG(name, value) case name: return # name ; #define DW_TAG_DUP(name, value) @@ -78,6 +83,7 @@ Boston, MA 02110-1301, USA. */ #define DW_CFA_DUP(name, value) #define DW_IDX(name, value) case name: return # name ; #define DW_IDX_DUP(name, value) +#define DW_UT(name, value) case name: return # name ; #include "dwarf2.def" @@ -95,6 +101,7 @@ Boston, MA 02110-1301, USA. */ #undef DW_END_CFA #undef DW_FIRST_IDX #undef DW_END_IDX +#undef DW_END_UT #undef DW_TAG #undef DW_TAG_DUP
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