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authorRichard Henderson <rth@redhat.com>2003-05-27 16:52:49 +0000
committerRichard Henderson <rth@redhat.com>2003-05-27 16:52:49 +0000
commita4447b93785ea7fd86d583bb892f3cb5f6db71d3 (patch)
treed33b904ec977b697a1bfcf3c0bc0897ed800edfa /gas/dw2gencfi.h
parentb7d6ed970a277da806f01110c032f0e19eab2368 (diff)
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* dw2gencfi.c, dw2gencfi.h: Rewrite from scratch.
* as.c (main): Always call cfi_finish. * config/tc-i386.c (x86_dwarf2_return_column): New. (x86_cie_data_alignment): New. (md_begin): Set them. (tc_x86_cfi_init): Remove. (tc_x86_regname_to_dw2regnum): Fix 32-bit register numbers; return int, not unsigned long; don't as_bad here. (tc_x86_frame_initial_instructions): Streamline; use updated api. * config/tc-i386.h (tc_cfi_init): Remove. (DWARF2_DEFAULT_RETURN_COLUMN): New. (DWARF2_CIE_DATA_ALIGNMENT): New. * gas/cfi/cfi-i386.d: Update for dw2gencfi rewrite. * gas/cfi/cfi-x86_64.d: Likewise. * gas/cfi/cfi-i386-2.d: New. * gas/cfi/cfi-i386-2.s: New.
Diffstat (limited to 'gas/dw2gencfi.h')
-rw-r--r--gas/dw2gencfi.h80
1 files changed, 13 insertions, 67 deletions
diff --git a/gas/dw2gencfi.h b/gas/dw2gencfi.h
index 1c72454..792225d 100644
--- a/gas/dw2gencfi.h
+++ b/gas/dw2gencfi.h
@@ -24,77 +24,23 @@
#include "elf/dwarf2.h"
-struct cfi_config {
- /* Target address length in bytes. (usually 4 or 8).
- Round it up for archs like S/390 with 31b addresses. */
- unsigned int addr_length;
-
- /* Alignment of .eh_frame blocks in bytes (usually 1, 4 or 8). */
- unsigned int eh_align;
-
- /* Code alignment (1 for x86/amd64 machines, 4 or 8 for
- RISC machines). Consult Dwarf2 standard for details. */
- int code_align;
-
- /* Data (stack) alignment (-4 on x86, -8 on amd64, something
- positive on archs where stack grows up). Consult Dwarf2
- standard for details. */
- int data_align;
-
- /* Return address column (0x8 on x86, 0x10 on amd64). Consult
- Dwarf2 standard for details. */
- int ra_column;
-
- /* Relocation type for init_addr FDE record. (BFD_RELOC_64
- on amd64). */
- int reloc_type;
-};
-
-/* Codes of CFI instructions taken from Dwarf2 standard. */
-enum cfi_insn {
- CFA_nop = DW_CFA_nop,
- CFA_set_loc = DW_CFA_set_loc,
- CFA_advance_loc1 = DW_CFA_advance_loc1,
- CFA_advance_loc2 = DW_CFA_advance_loc2,
- CFA_advance_loc4 = DW_CFA_advance_loc4,
- CFA_offset_extended = DW_CFA_offset_extended,
- CFA_resotre_extended = DW_CFA_restore_extended,
- CFA_undefined = DW_CFA_undefined,
- CFA_same_value = DW_CFA_same_value,
- CFA_register = DW_CFA_register,
- CFA_remember_state = DW_CFA_remember_state,
- CFA_restore_state = DW_CFA_restore_state,
- CFA_def_cfa = DW_CFA_def_cfa,
- CFA_def_cfa_register = DW_CFA_def_cfa_register,
- CFA_def_cfa_offset = DW_CFA_def_cfa_offset,
- CFA_advance_loc = DW_CFA_advance_loc,
- CFA_offset = DW_CFA_offset,
- CFA_restore = DW_CFA_restore,
-
- /* These don't belong to the standard. */
- CFI_startproc = 0xff00,
- CFI_endproc = 0xff01,
- CFI_adjust_cfa_offset = 0xff10,
- CFI_verbose = 0xffff
-};
+struct symbol;
extern const pseudo_typeS cfi_pseudo_table[];
-/* Insert .cfi_* directives to the list of pseudo-ops. */
-void cfi_pop_insert PARAMS ((void));
-
-/* Set/change setup of the CFI machinery. This change won't
- affect already generated CIEs/FDEs. */
-void cfi_set_config PARAMS ((struct cfi_config *cfg));
-
/* cfi_finish() is called at the end of file. It will complain if
the last CFI wasn't properly closed by .cfi_endproc. */
-void cfi_finish PARAMS ((void));
-
-/* Add CFI instruction to the list of instructions
- of the current frame. cfi_add_insn() could be used
- in tc_cfi_frame_initial_instructions() to add instructions
- needed for every frame (ie. those that usually go to CIE). */
-void cfi_add_insn (enum cfi_insn insn, long param0, long param1);
+extern void cfi_finish (void);
+
+/* Entry points for backends to add unwind information. */
+extern void cfi_new_fde (struct symbol *);
+extern void cfi_end_fde (struct symbol *);
+extern void cfi_set_return_column (unsigned);
+extern void cfi_add_advance_loc (struct symbol *);
+extern void cfi_add_CFA_offset (unsigned, offsetT);
+extern void cfi_add_CFA_def_cfa (unsigned, offsetT);
+extern void cfi_add_CFA_register (unsigned, unsigned);
+extern void cfi_add_CFA_def_cfa_register (unsigned);
+extern void cfi_add_CFA_def_cfa_offset (offsetT);
#endif /* DW2GENCFI_H */