diff options
| author | Miod Vallat <miod@cvs.openbsd.org> | 2012-12-08 16:47:57 +0000 |
|---|---|---|
| committer | Miod Vallat <miod@cvs.openbsd.org> | 2012-12-08 16:47:57 +0000 |
| commit | 8710bc8a28ddc7382418ae0da8b3b7cd6e54e0ca (patch) | |
| tree | 0a15dbfec68d186f91c24c20a9c55d09d2493892 /gnu | |
| parent | b28646ac5a29871cdbb14d217f6f57e544b416e0 (diff) | |
Bring in a couple of bugfixes from old (Aug 2000), but more recent than this
one, gas, to correctly output pc-relative jumps.
Diffstat (limited to 'gnu')
| -rw-r--r-- | gnu/usr.bin/gas/config/tc-vax.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/gnu/usr.bin/gas/config/tc-vax.c b/gnu/usr.bin/gas/config/tc-vax.c index cbb787d9663..96929dfc582 100644 --- a/gnu/usr.bin/gas/config/tc-vax.c +++ b/gnu/usr.bin/gas/config/tc-vax.c @@ -1,4 +1,4 @@ -/* $OpenBSD: tc-vax.c,v 1.4 2005/04/28 23:57:49 miod Exp $ */ +/* $OpenBSD: tc-vax.c,v 1.5 2012/12/08 16:47:56 miod Exp $ */ /* tc-vax.c - vax-specific - Copyright (C) 1987, 1991, 1992 Free Software Foundation, Inc. @@ -740,7 +740,7 @@ char *instruction_string; /* A string: assemble 1 instruction. */ p[1] = VAX_BRB; p[2] = 6; p[3] = VAX_JMP; - p[4] = VAX_PC_RELATIVE_MODE + 1; /* @#... */ + p[4] = VAX_ABSOLUTE_MODE; /* @#... */ md_number_to_chars(p + 5, this_add_number, 4); /* * Now (eg) xOBxxx 1f @@ -1217,7 +1217,7 @@ register fragS *fragP; addressP[0] = 6; addressP[1] = VAX_JMP; addressP[2] = VAX_PC_RELATIVE_MODE; - md_number_to_chars(addressP + 3, target_address, 4); + md_number_to_chars(addressP + 3, target_address - (address_of_var + 7), 4); extension = 7; break; @@ -1251,7 +1251,7 @@ register fragS *fragP; addressP[3] = 6; addressP[4] = VAX_JMP; addressP[5] = VAX_PC_RELATIVE_MODE; - md_number_to_chars(addressP + 6, target_address, 4); + md_number_to_chars(addressP + 6, target_address - (address_of_var + 10), 4); extension = 10; break; @@ -1275,7 +1275,7 @@ register fragS *fragP; addressP[2] = 6; addressP[3] = VAX_JMP; addressP[4] = VAX_PC_RELATIVE_MODE; - md_number_to_chars(addressP + 5, target_address, 4); + md_number_to_chars(addressP + 5, target_address - (address_of_var + 9), 4); extension = 9; break; @@ -2933,8 +2933,12 @@ symbolS *to_symbol; { long offset; - offset = to_addr - (from_addr + 1); - *ptr++ = 0x31; + /* This former calculation was off by two: + offset = to_addr - (from_addr + 1); + We need to account for the one byte instruction and also its + two byte operand. */ + offset = to_addr - (from_addr + 1 + 2); + *ptr++ = VAX_BRW; /* Branch with word (16 bit) offset. */ md_number_to_chars(ptr, offset, 2); } @@ -2948,8 +2952,8 @@ symbolS *to_symbol; long offset; offset = to_addr - S_GET_VALUE(to_symbol); - *ptr++ = 0x17; - *ptr++ = 0x9F; + *ptr++ = VAX_JMP; /* Arbitrary jump. */ + *ptr++ = VAX_ABSOLUTE_MODE; md_number_to_chars(ptr, offset, 4); fix_new(frag, ptr - frag->fr_literal, 4, to_symbol, (symbolS *) 0, (long) 0, 0, NO_RELOC); } |