Commit Graph

8 Commits

Author SHA1 Message Date
Fangrui Song e737e75491 [ELF] Change llvm-objdump output for D48472: TEXT DATA -> TEXT
Reviewers: jyknight, Bigcheese, espindola

Subscribers: emaste, arichardson, llvm-commits

Differential Revision: https://reviews.llvm.org/D48473

llvm-svn: 335404
2018-06-23 00:15:23 +00:00
Meador Inge b0e6229742 [ELF, LinkerScript] Memory region name parsing fix
This patch fixes a small issue with respect to how memory region names
are parsed on output section descriptions.  For example, consider:

  .text : { *(.text) } > rom

That can also be written like:

  .text : { *(.text) } >rom

The latter form is accepted by GNU LD and is fairly common.

Differential Revision: https://reviews.llvm.org/D35920

llvm-svn: 309191
2017-07-26 21:51:09 +00:00
Rui Ueyama 040af7deab Allow expressions in MEMORY command.
Previously, we allowed only integers in this context. Now you can
write expressions there. LLD is now able to handle the following
linker, for example.

  MEMORY { rom (rx) : ORIGIN = (1024 * 1024) }

llvm-svn: 300131
2017-04-12 23:16:52 +00:00
Rui Ueyama e9c9edf67b Make intentional typos look more obvious.
We do not check for similarities when handling unknown tokens in
linker scripts, so "ORIGI" and "LENTH" are not good tokens as a test
for unknown tokens, as I was tempted to "fix" them.

llvm-svn: 300130
2017-04-12 23:16:33 +00:00
Rui Ueyama 732baa4d03 Remove redundant spaces.
llvm-svn: 300129
2017-04-12 23:16:13 +00:00
Rui Ueyama 53e0fd33d4 Remove useless 0x prefixes.
llvm-svn: 300128
2017-04-12 23:15:55 +00:00
Rui Ueyama 58c18f8f23 Make a few tests shorter. NFC.
llvm-svn: 300120
2017-04-12 22:38:02 +00:00
Meador Inge b889744e5b [LinkerScript] Implement `MEMORY` command
As specified here:

* https://sourceware.org/binutils/docs/ld/MEMORY.html#MEMORY

There are two deviations from what is specified for GNU ld:

  1. Only integer constants and *not* constant expressions
     are allowed in `LENGTH` and `ORIGIN` initializations.

  2. The `I` and `L` attributes are *not* implemented.

With (1) there is currently no easy way to evaluate integer
only constant expressions.  This can be enhanced in the
future.

With (2) it isn't clear how these flags map to the `SHF_*`
flags or if they even make sense for an ELF linker.

Differential Revision: https://reviews.llvm.org/D28911

llvm-svn: 292875
2017-01-24 02:34:00 +00:00