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| author | Nick Clifton <nickc@redhat.com> | 2007-10-08 15:29:40 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2007-10-08 15:29:40 +0000 |
| commit | 8b040e0a493dbabd5e8d2f921ea4a9ac9ad3e190 (patch) | |
| tree | 1cc5b7b22d944f27fb34057b9cc1e3dee46744fa /gas | |
| parent | bd3ba5d1b3c7d421d3e61f67a11ed06d6fff93fa (diff) | |
| download | gdb-8b040e0a493dbabd5e8d2f921ea4a9ac9ad3e190.zip gdb-8b040e0a493dbabd5e8d2f921ea4a9ac9ad3e190.tar.gz gdb-8b040e0a493dbabd5e8d2f921ea4a9ac9ad3e190.tar.bz2 | |
* doc/as.texinfo (Previous): Clarify explanation of the behaviour of this
pseudo-op and add a couple of examples.
Diffstat (limited to 'gas')
| -rw-r--r-- | gas/ChangeLog | 5 | ||||
| -rw-r--r-- | gas/doc/as.texinfo | 37 |
2 files changed, 40 insertions, 2 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index 9e13cd4..c9af1a3 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,5 +1,10 @@ 2007-10-08 Nick Clifton <nickc@redhat.com> + * doc/as.texinfo (Previous): Clarify explanation of the behaviour + of this pseudo-op and add a couple of examples. + +2007-10-08 Nick Clifton <nickc@redhat.com> + PR gas/5121 gas/5122 gas/5123 * Makefile.am (CFILES): Add cgen.c (TARGET_CPU_CFILES): Add tc-iq2000.c, tc-maxq.c, tc-mt.c, diff --git a/gas/doc/as.texinfo b/gas/doc/as.texinfo index a59b272..4e07ef0 100644 --- a/gas/doc/as.texinfo +++ b/gas/doc/as.texinfo @@ -5346,9 +5346,42 @@ This is one of the ELF section stack manipulation directives. The others are (@pxref{PopSection}). This directive swaps the current section (and subsection) with most recently -referenced section (and subsection) prior to this one. Multiple +referenced section/subsection pair prior to this one. Multiple @code{.previous} directives in a row will flip between two sections (and their -subsections). +subsections). For example: + +@smallexample +.section A + .subsection 1 + .word 0x1234 + .subsection 2 + .word 0x5678 +.previous + .word 0x9abc +@end smallexample + +Will place 0x1234 and 0x9abc into subsection 1 and 0x5678 into subsection 2 of +section A. Whilst: + +@smallexample +.section A +.subsection 1 + # Now in section A subsection 1 + .word 0x1234 +.section B +.subsection 0 + # Now in section B subsection 0 + .word 0x5678 +.subsection 1 + # Now in section B subsection 1 + .word 0x9abc +.previous + # Now in section B subsection 0 + .word 0xdef0 +@end smallexample + +Will place 0x1234 into section A, 0x5678 and 0xdef0 into subsection 0 of +section B and 0x9abc into subsection 1 of section B. In terms of the section stack, this directive swaps the current section with the top section on the section stack. |