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radbin: only dump eh frame data if found

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This commit is contained in:
Ryan Fleury
2026-05-01 08:49:16 -07:00
parent 13fb24f253
commit 0b26b1c83e
2 changed files with 31 additions and 6 deletions
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src/radbin/radbin.c
+28 -4
View File
@@ -355,6 +355,9 @@ rb_thread_entry_point(void *p)
scratch_end(scratch); scratch_end(scratch);
} }
//////////////////////////
//- rjf: COFF OBJ => check if contains DWARF
//
if(file_format == RB_FileFormat_COFF_OBJ || file_format == RB_FileFormat_COFF_BigOBJ) if(file_format == RB_FileFormat_COFF_OBJ || file_format == RB_FileFormat_COFF_BigOBJ)
{ {
Temp scratch = scratch_begin(&arena, 1); Temp scratch = scratch_begin(&arena, 1);
@@ -386,6 +389,28 @@ rb_thread_entry_point(void *p)
scratch_end(scratch); scratch_end(scratch);
} }
//////////////////////////
//- rjf: ELF => check if contains EH frame info
//
if(file_format == RB_FileFormat_ELF32 ||
file_format == RB_FileFormat_ELF64)
{
Temp scratch = scratch_begin(&arena, 1);
ELF_Bin elf_bin = elf_bin_from_data(scratch.arena, file_data);
for EachIndex(sect_idx, elf_bin.hdr.e_shnum)
{
ELF_Shdr64 *shdr = &elf_bin.shdrs.v[sect_idx];
String8 name = elf_name_from_shdr64(file_data, &elf_bin, shdr);
if(str8_match(name, str8_lit(".eh_frame_hdr"), 0))
{
log_infof("EH frame data detected in %S (%S)\n", n->string, rb_file_format_display_name_table[file_format]);
file_format_flags |= RB_FileFormatFlag_HasEhFrame;
break;
}
}
scratch_end(scratch);
}
////////////////////////// //////////////////////////
//- rjf: push to list //- rjf: push to list
// //
@@ -1427,7 +1452,6 @@ rb_thread_entry_point(void *p)
{ {
elf = elf_bin_from_data(arena, f->data); elf = elf_bin_from_data(arena, f->data);
arch = arch_from_elf_machine(elf.hdr.e_machine); arch = arch_from_elf_machine(elf.hdr.e_machine);
for EachIndex(sect_idx, elf.hdr.e_shnum) for EachIndex(sect_idx, elf.hdr.e_shnum)
{ {
ELF_Shdr64 *shdr = &elf.shdrs.v[sect_idx]; ELF_Shdr64 *shdr = &elf.shdrs.v[sect_idx];
@@ -1436,7 +1460,6 @@ rb_thread_entry_point(void *p)
{ {
eh_frame_hdr = str8_substr(f->data, r1u64(shdr->sh_offset, shdr->sh_offset + shdr->sh_size)); eh_frame_hdr = str8_substr(f->data, r1u64(shdr->sh_offset, shdr->sh_offset + shdr->sh_size));
eh_frame_hdr_vaddr = shdr->sh_addr; eh_frame_hdr_vaddr = shdr->sh_addr;
} }
else if(str8_match(name, str8_lit(".eh_frame"), 0)) else if(str8_match(name, str8_lit(".eh_frame"), 0))
{ {
@@ -1537,7 +1560,7 @@ rb_thread_entry_point(void *p)
}break; }break;
} }
//- rjf: dump file extension info //- rjf: dump DWARF file extension info
if(f->format_flags & RB_FileFormatFlag_HasDWARF) if(f->format_flags & RB_FileFormatFlag_HasDWARF)
{ {
if(lane_idx() == 0) if(lane_idx() == 0)
@@ -1549,7 +1572,8 @@ rb_thread_entry_point(void *p)
lane_sync(); lane_sync();
} }
if(eh_dump_subset_flags) //- rjf: dump EH frame file extension info
if(f->format_flags & RB_FileFormatFlag_HasEhFrame)
{ {
if(lane_idx() == 0) if(lane_idx() == 0)
{ {
src/radbin/radbin.h
+1
View File
@@ -26,6 +26,7 @@ typedef U32 RB_FileFormatFlags;
enum enum
{ {
RB_FileFormatFlag_HasDWARF = (1<<0), RB_FileFormatFlag_HasDWARF = (1<<0),
RB_FileFormatFlag_HasEhFrame = (1<<1),
}; };
typedef struct RB_File RB_File; typedef struct RB_File RB_File;