diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/xcoffout.h | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/gcc/xcoffout.h b/gcc/xcoffout.h index 0fbd4131375..7efa984d08b 100644 --- a/gcc/xcoffout.h +++ b/gcc/xcoffout.h @@ -28,14 +28,30 @@ #define DBX_STATIC_CONST_VAR_CODE N_STSYM -/* For static variables, output code to define the start of a static block. */ +/* For static variables, output code to define the start of a static block. + + ??? The IBM rs6000/AIX assembler has a bug that causes bss block debug + info to be occasionally lost. A simple example is this: + int a; static int b; + The commands `gcc -g -c tmp.c; dump -t tmp.o' gives +[10] m 0x00000016 1 0 0x8f 0x0000 .bs +[11] m 0x00000000 1 0 0x90 0x0000 .es +... +[21] m 0x00000000 -2 0 0x85 0x0000 b:S-1 + which is wrong. The `b:S-1' must be between the `.bs' and `.es'. + We can apparently work around the problem by forcing the text section + (even if we are already in the text section) immediately before outputting + the `.bs'. This should be fixed in the next major AIX release (3.3?). */ #define DBX_STATIC_BLOCK_START(ASMFILE,CODE) \ { \ if ((CODE) == N_STSYM) \ fprintf ((ASMFILE), "\t.bs\t%s[RW]\n", xcoff_private_data_section_name);\ else if ((CODE) == N_LCSYM) \ - fprintf ((ASMFILE), "\t.bs\t%s\n", xcoff_bss_section_name); \ + { \ + fprintf ((ASMFILE), "%s\n", TEXT_SECTION_ASM_OP); \ + fprintf ((ASMFILE), "\t.bs\t%s\n", xcoff_bss_section_name); \ + } \ } /* For static variables, output code to define the end of a static block. */ |