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bfd: Handle note of type NT_X86_SHSTK

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This commit is contained in:
Christina Schimpe
2025-02-13 16:40:23 +00:00
committed by H.J. Lu
parent 10697e844b
commit c44fc1d6b4
1 changed files with 24 additions and 0 deletions
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24
bfd/elf.c
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@@ -10391,6 +10391,12 @@ elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note)
return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note);
} }
static bool
elfcore_grok_sspreg (bfd *abfd, Elf_Internal_Note *note)
{
return elfcore_make_note_pseudosection (abfd, ".reg-ssp", note);
}
static bool static bool
elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note)
{ {
@@ -11086,6 +11092,13 @@ elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note)
else else
return true; return true;
case NT_X86_SHSTK: /* Linux CET extension. */
if (note->namesz == 6
&& strcmp (note->namedata, "LINUX") == 0)
return elfcore_grok_sspreg (abfd, note);
else
return true;
case NT_PPC_VMX: case NT_PPC_VMX:
if (note->namesz == 6 if (note->namesz == 6
&& strcmp (note->namedata, "LINUX") == 0) && strcmp (note->namedata, "LINUX") == 0)
@@ -12536,6 +12549,15 @@ elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz,
note_name, NT_X86_XSTATE, xfpregs, size); note_name, NT_X86_XSTATE, xfpregs, size);
} }
static char *
elfcore_write_sspreg (bfd *abfd, char *buf, int *bufsiz,
const void *ssp, int size)
{
const char *note_name = "LINUX";
return elfcore_write_note (abfd, buf, bufsiz,
note_name, NT_X86_SHSTK, ssp, size);
}
char * char *
elfcore_write_x86_segbases (bfd *abfd, char *buf, int *bufsiz, elfcore_write_x86_segbases (bfd *abfd, char *buf, int *bufsiz,
const void *regs, int size) const void *regs, int size)
@@ -13131,6 +13153,8 @@ elfcore_write_register_note (bfd *abfd,
return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size);
if (strcmp (section, ".reg-x86-segbases") == 0) if (strcmp (section, ".reg-x86-segbases") == 0)
return elfcore_write_x86_segbases (abfd, buf, bufsiz, data, size); return elfcore_write_x86_segbases (abfd, buf, bufsiz, data, size);
if (strcmp (section, ".reg-ssp") == 0)
return elfcore_write_sspreg (abfd, buf, bufsiz, data, size);
if (strcmp (section, ".reg-ppc-vmx") == 0) if (strcmp (section, ".reg-ppc-vmx") == 0)
return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size);
if (strcmp (section, ".reg-ppc-vsx") == 0) if (strcmp (section, ".reg-ppc-vsx") == 0)