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libbacktrace: avoid -Wpointer-arith errors

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Based on patch from Kirill Müller.

	* configure.ac (ACX_PROG_CC_WARNING_OPTS): Add -Wpointer-arith.
	* pecoff.c (coff_add): Cast void pointers.
	* xcoff.c (xcoff_add): Likewise.
	* configure: Regenerate.
This commit is contained in:
Ian Lance Taylor
2024-08-05 16:46:03 -07:00
parent 0dd27b95f9
commit 6ce91a2ef7
4 changed files with 11 additions and 6 deletions
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7
pecoff.c
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@@ -704,7 +704,7 @@ coff_add (struct backtrace_state *state, int descriptor,
magic_ok = memcmp (magic, "PE\0", 4) == 0;
fhdr_off += 4;
memcpy (&fhdr, fhdr_view.data + 4, sizeof fhdr);
memcpy (&fhdr, (const unsigned char *) fhdr_view.data + 4, sizeof fhdr);
}
else
{
@@ -738,7 +738,7 @@ coff_add (struct backtrace_state *state, int descriptor,
sects_view_valid = 1;
opt_hdr = (const b_coff_optional_header *) sects_view.data;
sects = (const b_coff_section_header *)
(sects_view.data + fhdr.size_of_optional_header);
((const unsigned char *) sects_view.data + fhdr.size_of_optional_header);
is_64 = 0;
memset (&image_base, 0, sizeof image_base);
@@ -781,7 +781,8 @@ coff_add (struct backtrace_state *state, int descriptor,
goto fail;
syms_view_valid = 1;
str_size = coff_read4 (syms_view.data + syms_size);
str_size = coff_read4 ((const unsigned char *) syms_view.data
+ syms_size);
str_off = syms_off + syms_size;