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x86-64: relocation addend is 64bit

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Some routines were using the wrong type (int) in passing addends,
truncating it.  This matters when bit 31 isn't set and the high
32 bits are set: the truncation would make it unsigned where in
reality it's signed (happen e.g. on the x86-64 with it's load
address at top-2GB).
This commit is contained in:
Michael Matz 2016-09-29 16:57:30 +02:00
parent 975c74c1f5
commit b5669a952b
3 changed files with 6 additions and 6 deletions
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4
i386-gen.c
View File

@ -165,14 +165,14 @@ ST_FUNC int oad(int c, int s)
}
/* output constant with relocation if 'r & VT_SYM' is true */
ST_FUNC void gen_addr32(int r, Sym *sym, int c)
ST_FUNC void gen_addr32(int r, Sym *sym, long c)
{
if (r & VT_SYM)
greloc(cur_text_section, sym, ind, R_386_32);
gen_le32(c);
}
ST_FUNC void gen_addrpc32(int r, Sym *sym, int c)
ST_FUNC void gen_addrpc32(int r, Sym *sym, long c)
{
if (r & VT_SYM)
greloc(cur_text_section, sym, ind, R_386_PC32);

4
tcc.h
View File

@ -1478,8 +1478,8 @@ ST_FUNC void g(int c);
ST_FUNC int oad(int c, int s);
ST_FUNC void gen_le16(int c);
ST_FUNC void gen_le32(int c);
ST_FUNC void gen_addr32(int r, Sym *sym, int c);
ST_FUNC void gen_addrpc32(int r, Sym *sym, int c);
ST_FUNC void gen_addr32(int r, Sym *sym, long c);
ST_FUNC void gen_addrpc32(int r, Sym *sym, long c);
#endif
#ifdef CONFIG_TCC_BCHECK

4
x86_64-gen.c
View File

@ -239,7 +239,7 @@ ST_FUNC int oad(int c, int s)
return s;
}
ST_FUNC void gen_addr32(int r, Sym *sym, int c)
ST_FUNC void gen_addr32(int r, Sym *sym, long c)
{
if (r & VT_SYM)
greloca(cur_text_section, sym, ind, R_X86_64_32S, c), c=0;
@ -255,7 +255,7 @@ ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c)
}
/* output constant with relocation if 'r & VT_SYM' is true */
ST_FUNC void gen_addrpc32(int r, Sym *sym, int c)
ST_FUNC void gen_addrpc32(int r, Sym *sym, long c)
{
if (r & VT_SYM)
greloca(cur_text_section, sym, ind, R_X86_64_PC32, c-4), c=4;