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| author | Sam Ravnborg <sam@mars.ravnborg.org> | 2006-03-05 00:16:26 +0100 |
|---|---|---|
| committer | Sam Ravnborg <sam@mars.ravnborg.org> | 2006-03-05 00:16:26 +0100 |
| commit | 9209aed0726c77ad13b8d83e73a3cf9f59a8c2b2 (patch) | |
| tree | 89f9a3c64883051f95930d821c62fc9b1a8a201c /scripts | |
| parent | 62070fa42c4ac23d1d71146a4c14702302b80245 (diff) | |
| download | lwn-9209aed0726c77ad13b8d83e73a3cf9f59a8c2b2.tar.gz lwn-9209aed0726c77ad13b8d83e73a3cf9f59a8c2b2.zip | |
kbuild: kill false positives from section mismatch warnings for powerpc
Building an allmodconfig kernel for ppc64 revealed a number of false
positives - originally reported by Andrew Morton.
This patch removes most if not all false positives for ppc64:
Section .opd
The .opd section contains function descriptors at least for ppc64.
So ignore it for .init.text (was ignored for .exit.text).
See description of function descriptors here:
http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi-1.7.html
Section .toc1
ppc64 places some static variables in .toc1 - ignore the.
Section __bug_tabe
BUG() and friends uses __bug_table. Ignore warnings from that section.
Module parameters are placed in .data.rel for ppc64, for adjust pattern to
match on section named .data*
Tested with gcc: 3.4.0 and binutils 2.15.90.0.3
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/mod/modpost.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 5de3c63091e9..c4dc1d72d02e 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -483,7 +483,7 @@ static int strrcmp(const char *s, const char *sub) * this pattern. * The pattern is identified by: * tosec = .init.data - * fromsec = .data + * fromsec = .data* * atsym =__param* * * Pattern 2: @@ -512,7 +512,7 @@ static int secref_whitelist(const char *tosec, const char *fromsec, /* Check for pattern 1 */ if (strcmp(tosec, ".init.data") != 0) f1 = 0; - if (strcmp(fromsec, ".data") != 0) + if (strncmp(fromsec, ".data", strlen(".data")) != 0) f1 = 0; if (strncmp(atsym, "__param", strlen("__param")) != 0) f1 = 0; @@ -743,9 +743,12 @@ static int init_section_ref_ok(const char *name) /* Absolute section names */ const char *namelist1[] = { ".init", + ".opd", /* see comment [OPD] at exit_section_ref_ok() */ + ".toc1", /* used by ppc64 */ ".stab", ".rodata", ".text.lock", + "__bug_table", /* used by powerpc for BUG() */ ".pci_fixup_header", ".pci_fixup_final", ".pdr", @@ -812,8 +815,10 @@ static int exit_section_ref_ok(const char *name) ".exit.data", ".init.text", ".opd", /* See comment [OPD] */ + ".toc1", /* used by ppc64 */ ".altinstructions", ".pdr", + "__bug_table", /* used by powerpc for BUG() */ ".exitcall.exit", ".eh_frame", ".stab", |