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aix: Switch AIX configurtion to DWARF2 debugging 

This patch is in preparation for removing stabs debugging support from GCC.

The rs6000 configuration files remain somewhat intertwined with the
stabs debugging support, but the configuration no longer generates
stabs debugging information.

This patch means that earlier releases (Technology Levels) of AIX 7.1
and 7.2, prior to DWARF support and fixes, cannot build GCC or support
GCC.

gcc/ChangeLog:

	* config/rs6000/aix71.h (PREFERRED_DEBUGGING_TYPE): Change to
	DWARF2_DEBUG.
	* config/rs6000/aix72.h (PREFERRED_DEBUGGING_TYPE): Same.
This commit is contained in:
David Edelsohn 2020-01-14 13:12:59 -05:00
parent 0745b6fa66
commit 6a2f49c699
2 changed files with 4 additions and 4 deletions
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4
gcc/config/rs6000/aix71.h
View File

@ -272,9 +272,9 @@ extern long long int atoll(const char *);
#define TARGET_AIX_VERSION 71
/* AIX 7.1 supports DWARF3 debugging, but XCOFF remains the default. */
/* AIX 7.1 supports DWARF3+ debugging. */
#define DWARF2_DEBUGGING_INFO 1
#define PREFERRED_DEBUGGING_TYPE XCOFF_DEBUG
#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
#define DEBUG_INFO_SECTION "0x10000"
#define DEBUG_LINE_SECTION "0x20000"
#define DEBUG_PUBNAMES_SECTION "0x30000"

4
gcc/config/rs6000/aix72.h
View File

@ -273,9 +273,9 @@ extern long long int atoll(const char *);
#define TARGET_AIX_VERSION 72
/* AIX 7.2 supports DWARF3 debugging, but XCOFF remains the default. */
/* AIX 7.2 supports DWARF3+ debugging. */
#define DWARF2_DEBUGGING_INFO 1
#define PREFERRED_DEBUGGING_TYPE XCOFF_DEBUG
#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
#define DEBUG_INFO_SECTION "0x10000"
#define DEBUG_LINE_SECTION "0x20000"
#define DEBUG_PUBNAMES_SECTION "0x30000"