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| author | Clément Chigot <clement.chigot@atos.net> | 2021-11-16 14:02:16 +0100 |
|---|---|---|
| committer | Clément Chigot <clement.chigot@atos.net> | 2022-01-12 09:08:11 +0100 |
| commit | add588a8ef53a5f77f2abda08a5de643923c4cce (patch) | |
| tree | f5b85c033c265d175ec30c4de2d7568ac9751f8e /include | |
| parent | c4f5871457222f2c4a99e662dfa16b7c662f750a (diff) | |
| download | gdb-add588a8ef53a5f77f2abda08a5de643923c4cce.zip gdb-add588a8ef53a5f77f2abda08a5de643923c4cce.tar.gz gdb-add588a8ef53a5f77f2abda08a5de643923c4cce.tar.bz2 | |
gas: add visibility support for XCOFF
XCOFF assembly defines the visibility using an additional argument
on several pseudo-ops: .globl, .weak, .extern and .comm.
This implies that .globl and .weak syntax is different than the
usual GNU syntax. But we want to provide compatibility with AIX
assembler, especially because GCC is generating the visibility
using this XCOFF syntax.
PR 22085
bfd/ChangeLog:
* coffcode.h (coff_write_object_contents): Change XCOFF header
vstamp field to 2.
* coffgen.c (coff_print_symbol): Increase the size for n_type.
gas/ChangeLog:
* config/tc-ppc.c (ppc_xcoff_get_visibility): New function.
(ppc_globl): New function.
(ppc_weak): New function.
(ppc_comm): Add visibility field support.
(ppc_extern): Likewise.
* testsuite/gas/all/cofftag.d: Adjust to new n_type size
providing by objdump.
* testsuite/gas/ppc/test1xcoff32.d: Likewise.
* testsuite/gas/ppc/aix.exp: Add new tests.
* testsuite/gas/ppc/xcoff-visibility-1-32.d: New test.
* testsuite/gas/ppc/xcoff-visibility-1-64.d: New test.
* testsuite/gas/ppc/xcoff-visibility-1.s: New test.
include/ChangeLog:
* coff/internal.h (SYM_V_INTERNAL, SYM_V_HIDDEN,
SYM_V_PROTECTED, SYM_V_EXPORTED, SYM_V_MASK): New defines.
* coff/xcoff.h (struct xcoff_link_hash_entry): Add visibility
field.
ld/ChangeLog:
* testsuite/ld-pe/pr19803.d: Adjust to new n_type size
providing by objdump.
Diffstat (limited to 'include')
| -rw-r--r-- | include/coff/internal.h | 7 | ||||
| -rw-r--r-- | include/coff/xcoff.h | 3 |
2 files changed, 10 insertions, 0 deletions
diff --git a/include/coff/internal.h b/include/coff/internal.h index 69eb0a4..f12908b 100644 --- a/include/coff/internal.h +++ b/include/coff/internal.h @@ -536,6 +536,13 @@ struct internal_syment #define DECREF(x) \ ((((x) >> N_TSHIFT) & ~ N_BTMASK) | ((x) & N_BTMASK)) +/* Visibility flag, in XCOFF n_type. */ +#define SYM_V_INTERNAL 0x1000 +#define SYM_V_HIDDEN 0x2000 +#define SYM_V_PROTECTED 0x3000 +#define SYM_V_EXPORTED 0x4000 +#define SYM_V_MASK 0xF000 + union internal_auxent { struct diff --git a/include/coff/xcoff.h b/include/coff/xcoff.h index bf53ecd..acadf54 100644 --- a/include/coff/xcoff.h +++ b/include/coff/xcoff.h @@ -349,6 +349,9 @@ struct xcoff_link_hash_entry /* Some linker flags. */ unsigned long flags; + /* Symbol visibility, using the same define than n_type. */ + unsigned short visibility; + /* The storage mapping class. */ unsigned char smclas; }; |