diff options
| author | Guillem Jover <guillem@debian.org> | 2006-08-28 03:17:37 +0000 |
|---|---|---|
| committer | Guillem Jover <guillem@debian.org> | 2006-08-28 03:17:37 +0000 |
| commit | 8b0829d2f2b7752da1a16e8a83e66581f73de573 (patch) | |
| tree | 9b56179da50c8fe74c965d9f0ea2acf7b5b31c6a /debian/patches | |
| parent | 5effdf231f0c851dd56431595c711ab3980b09e4 (diff) | |
Fix an unused field optimization with gcc 4.1 which was causing the
descriptor initialization to do it partially.
- debian/patches/01_gcc-4.1.patch: New file.
Thanks to Samuel Thibault <samuel.thibault@ens-lyon.org>.
Diffstat (limited to 'debian/patches')
| -rw-r--r-- | debian/patches/01_gcc-4.1.patch | 42 | ||||
| -rw-r--r-- | debian/patches/series | 1 |
2 files changed, 43 insertions, 0 deletions
diff --git a/debian/patches/01_gcc-4.1.patch b/debian/patches/01_gcc-4.1.patch new file mode 100644 index 0000000..85adc3e --- /dev/null +++ b/debian/patches/01_gcc-4.1.patch @@ -0,0 +1,42 @@ +[gnumach]/Changelog +2006-08-07 Samuel Thibault <samuel.thibault@ens-lyon.org> + + Fix against gcc 4.1's optimizations. + + * i386/i386/seg.h (struct pseudo_descriptor): Reorder pad field, + pack structure. + (lgdt): Pass whole struct pseudo_descriptor to asm macro. + (lidt): Likewise. + +Index: i386/i386/seg.h +=================================================================== +RCS file: /cvsroot/hurd/gnumach/i386/i386/Attic/seg.h,v +retrieving revision 1.2 +diff -u -p -r1.2 seg.h +--- i386/i386/seg.h 5 Apr 2001 06:39:20 -0000 1.2 ++++ i386/i386/seg.h 7 Aug 2006 03:59:04 -0000 +@@ -121,20 +121,20 @@ struct real_gate { + /* Format of a "pseudo-descriptor", used for loading the IDT and GDT. */ + struct pseudo_descriptor + { +- short pad; + unsigned short limit; + unsigned long linear_base; +-}; ++ short pad; ++} __attribute__((packed)); + + + /* Load the processor's IDT, GDT, or LDT pointers. */ + MACH_INLINE void lgdt(struct pseudo_descriptor *pdesc) + { +- __asm volatile("lgdt %0" : : "m" (pdesc->limit)); ++ __asm volatile("lgdt %0" : : "m" (*pdesc)); + } + MACH_INLINE void lidt(struct pseudo_descriptor *pdesc) + { +- __asm volatile("lidt %0" : : "m" (pdesc->limit)); ++ __asm volatile("lidt %0" : : "m" (*pdesc)); + } + MACH_INLINE void lldt(unsigned short ldt_selector) + { diff --git a/debian/patches/series b/debian/patches/series index 55de1c1..4ea0e1b 100644 --- a/debian/patches/series +++ b/debian/patches/series @@ -1,4 +1,5 @@ 00_clean_gfdl.patch -p0 +01_gcc-4.1.patch -p0 05_halt_on_panic_flag.patch -p0 10_cdromlock.patch 12_sis900.patch -p0 |