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re PR other/22313 (profiledbootstrap is broken on the mainline) 

PR other/22313
	* dwarf2out.c (add_fde_cfi): Use a set_loc if the current label is
	NULL, otherwise use an advance_loc4 to adjust relative to the 
	current label.
	(output_cfi) <DW_CFA_set_loc>: Update the current label.
	(dwarf2out_switch_text_section): Reset the current label to avoid
	using advance_loc4 over section boundaries.

From-SVN: r116604
This commit is contained in:
Roger Sayle 2006-08-31 17:35:32 +00:00 committed by Roger Sayle
parent d50341e6de
commit 6a10f7b362
2 changed files with 23 additions and 2 deletions
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10
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2006-08-31 Roger Sayle <roger@eyesopen.com>
PR other/22313
* dwarf2out.c (add_fde_cfi): Use a set_loc if the current label is
NULL, otherwise use an advance_loc4 to adjust relative to the
current label.
(output_cfi) <DW_CFA_set_loc>: Update the current label.
(dwarf2out_switch_text_section): Reset the current label to avoid
using advance_loc4 over section boundaries.
2006-08-31 Andreas Krebbel <krebbel1@de.ibm.com>
PR target/24367

15
gcc/dwarf2out.c
View File

@ -628,13 +628,19 @@ add_fde_cfi (const char *label, dw_cfi_ref cfi)
{
dw_cfi_ref xcfi;
fde->dw_fde_current_label = label = xstrdup (label);
label = xstrdup (label);
/* Set the location counter to the new label. */
xcfi = new_cfi ();
xcfi->dw_cfi_opc = DW_CFA_advance_loc4;
/* If we have a current label, advance from there, otherwise
set the location directly using set_loc. */
xcfi->dw_cfi_opc = fde->dw_fde_current_label
? DW_CFA_advance_loc4
: DW_CFA_set_loc;
xcfi->dw_cfi_oprnd1.dw_cfi_addr = label;
add_cfi (&fde->dw_fde_cfi, xcfi);
fde->dw_fde_current_label = label;
}
add_cfi (&fde->dw_fde_cfi, cfi);
@ -2069,6 +2075,7 @@ output_cfi (dw_cfi_ref cfi, dw_fde_ref fde, int for_eh)
else
dw2_asm_output_addr (DWARF2_ADDR_SIZE,
cfi->dw_cfi_oprnd1.dw_cfi_addr, NULL);
fde->dw_fde_current_label = cfi->dw_cfi_oprnd1.dw_cfi_addr;
break;
case DW_CFA_advance_loc1:
@ -6919,6 +6926,10 @@ dwarf2out_switch_text_section (void)
fde->dw_fde_unlikely_section_label = cfun->cold_section_label;
fde->dw_fde_unlikely_section_end_label = cfun->cold_section_end_label;
have_multiple_function_sections = true;
/* Reset the current label on switching text sections, so that we
don't attempt to advance_loc4 between labels in different sections. */
fde->dw_fde_current_label = NULL;
}
/* Output the location list given to us. */